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class.jetpack.php (12 issues)

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1
<?php
2
3
/*
4
Options:
5
jetpack_options (array)
6
	An array of options.
7
	@see Jetpack_Options::get_option_names()
8
9
jetpack_register (string)
10
	Temporary verification secrets.
11
12
jetpack_activated (int)
13
	1: the plugin was activated normally
14
	2: the plugin was activated on this site because of a network-wide activation
15
	3: the plugin was auto-installed
16
	4: the plugin was manually disconnected (but is still installed)
17
18
jetpack_active_modules (array)
19
	Array of active module slugs.
20
21
jetpack_do_activate (bool)
22
	Flag for "activating" the plugin on sites where the activation hook never fired (auto-installs)
23
*/
24
25
class Jetpack {
26
	public $xmlrpc_server = null;
27
28
	private $xmlrpc_verification = null;
29
30
	public $HTTP_RAW_POST_DATA = null; // copy of $GLOBALS['HTTP_RAW_POST_DATA']
31
32
	/**
33
	 * @var array The handles of styles that are concatenated into jetpack.css
34
	 */
35
	public $concatenated_style_handles = array(
36
		'jetpack-carousel',
37
		'grunion.css',
38
		'the-neverending-homepage',
39
		'jetpack_likes',
40
		'jetpack_related-posts',
41
		'sharedaddy',
42
		'jetpack-slideshow',
43
		'presentations',
44
		'jetpack-subscriptions',
45
		'jetpack-responsive-videos-style',
46
		'jetpack-social-menu',
47
		'tiled-gallery',
48
		'jetpack_display_posts_widget',
49
		'gravatar-profile-widget',
50
		'goodreads-widget',
51
		'jetpack_social_media_icons_widget',
52
		'jetpack-top-posts-widget',
53
		'jetpack_image_widget',
54
	);
55
56
	public $plugins_to_deactivate = array(
57
		'stats'               => array( 'stats/stats.php', 'WordPress.com Stats' ),
58
		'shortlinks'          => array( 'stats/stats.php', 'WordPress.com Stats' ),
59
		'sharedaddy'          => array( 'sharedaddy/sharedaddy.php', 'Sharedaddy' ),
60
		'twitter-widget'      => array( 'wickett-twitter-widget/wickett-twitter-widget.php', 'Wickett Twitter Widget' ),
61
		'after-the-deadline'  => array( 'after-the-deadline/after-the-deadline.php', 'After The Deadline' ),
62
		'contact-form'        => array( 'grunion-contact-form/grunion-contact-form.php', 'Grunion Contact Form' ),
63
		'contact-form'        => array( 'mullet/mullet-contact-form.php', 'Mullet Contact Form' ),
64
		'custom-css'          => array( 'safecss/safecss.php', 'WordPress.com Custom CSS' ),
65
		'random-redirect'     => array( 'random-redirect/random-redirect.php', 'Random Redirect' ),
66
		'videopress'          => array( 'video/video.php', 'VideoPress' ),
67
		'widget-visibility'   => array( 'jetpack-widget-visibility/widget-visibility.php', 'Jetpack Widget Visibility' ),
68
		'widget-visibility'   => array( 'widget-visibility-without-jetpack/widget-visibility-without-jetpack.php', 'Widget Visibility Without Jetpack' ),
69
		'sharedaddy'          => array( 'jetpack-sharing/sharedaddy.php', 'Jetpack Sharing' ),
70
		'omnisearch'          => array( 'jetpack-omnisearch/omnisearch.php', 'Jetpack Omnisearch' ),
71
		'gravatar-hovercards' => array( 'jetpack-gravatar-hovercards/gravatar-hovercards.php', 'Jetpack Gravatar Hovercards' ),
72
		'latex'               => array( 'wp-latex/wp-latex.php', 'WP LaTeX' )
73
	);
74
75
	static $capability_translations = array(
76
		'administrator' => 'manage_options',
77
		'editor'        => 'edit_others_posts',
78
		'author'        => 'publish_posts',
79
		'contributor'   => 'edit_posts',
80
		'subscriber'    => 'read',
81
	);
82
83
	/**
84
	 * Map of modules that have conflicts with plugins and should not be auto-activated
85
	 * if the plugins are active.  Used by filter_default_modules
86
	 *
87
	 * Plugin Authors: If you'd like to prevent a single module from auto-activating,
88
	 * change `module-slug` and add this to your plugin:
89
	 *
90
	 * add_filter( 'jetpack_get_default_modules', 'my_jetpack_get_default_modules' );
91
	 * function my_jetpack_get_default_modules( $modules ) {
92
	 *     return array_diff( $modules, array( 'module-slug' ) );
93
	 * }
94
	 *
95
	 * @var array
96
	 */
97
	private $conflicting_plugins = array(
98
		'comments'          => array(
99
			'Intense Debate'                       => 'intensedebate/intensedebate.php',
100
			'Disqus'                               => 'disqus-comment-system/disqus.php',
101
			'Livefyre'                             => 'livefyre-comments/livefyre.php',
102
			'Comments Evolved for WordPress'       => 'gplus-comments/comments-evolved.php',
103
			'Google+ Comments'                     => 'google-plus-comments/google-plus-comments.php',
104
			'WP-SpamShield Anti-Spam'              => 'wp-spamshield/wp-spamshield.php',
105
		),
106
		'contact-form'      => array(
107
			'Contact Form 7'                       => 'contact-form-7/wp-contact-form-7.php',
108
			'Gravity Forms'                        => 'gravityforms/gravityforms.php',
109
			'Contact Form Plugin'                  => 'contact-form-plugin/contact_form.php',
110
			'Easy Contact Forms'                   => 'easy-contact-forms/easy-contact-forms.php',
111
			'Fast Secure Contact Form'             => 'si-contact-form/si-contact-form.php',
112
		),
113
		'minileven'         => array(
114
			'WPtouch'                              => 'wptouch/wptouch.php',
115
		),
116
		'latex'             => array(
117
			'LaTeX for WordPress'                  => 'latex/latex.php',
118
			'Youngwhans Simple Latex'              => 'youngwhans-simple-latex/yw-latex.php',
119
			'Easy WP LaTeX'                        => 'easy-wp-latex-lite/easy-wp-latex-lite.php',
120
			'MathJax-LaTeX'                        => 'mathjax-latex/mathjax-latex.php',
121
			'Enable Latex'                         => 'enable-latex/enable-latex.php',
122
			'WP QuickLaTeX'                        => 'wp-quicklatex/wp-quicklatex.php',
123
		),
124
		'protect'           => array(
125
			'Limit Login Attempts'                 => 'limit-login-attempts/limit-login-attempts.php',
126
			'Captcha'                              => 'captcha/captcha.php',
127
			'Brute Force Login Protection'         => 'brute-force-login-protection/brute-force-login-protection.php',
128
			'Login Security Solution'              => 'login-security-solution/login-security-solution.php',
129
			'WPSecureOps Brute Force Protect'      => 'wpsecureops-bruteforce-protect/wpsecureops-bruteforce-protect.php',
130
			'BulletProof Security'                 => 'bulletproof-security/bulletproof-security.php',
131
			'SiteGuard WP Plugin'                  => 'siteguard/siteguard.php',
132
			'Security-protection'                  => 'security-protection/security-protection.php',
133
			'Login Security'                       => 'login-security/login-security.php',
134
			'Botnet Attack Blocker'                => 'botnet-attack-blocker/botnet-attack-blocker.php',
135
			'Wordfence Security'                   => 'wordfence/wordfence.php',
136
			'All In One WP Security & Firewall'    => 'all-in-one-wp-security-and-firewall/wp-security.php',
137
			'iThemes Security'                     => 'better-wp-security/better-wp-security.php',
138
		),
139
		'random-redirect'   => array(
140
			'Random Redirect 2'                    => 'random-redirect-2/random-redirect.php',
141
		),
142
		'related-posts'     => array(
143
			'YARPP'                                => 'yet-another-related-posts-plugin/yarpp.php',
144
			'WordPress Related Posts'              => 'wordpress-23-related-posts-plugin/wp_related_posts.php',
145
			'nrelate Related Content'              => 'nrelate-related-content/nrelate-related.php',
146
			'Contextual Related Posts'             => 'contextual-related-posts/contextual-related-posts.php',
147
			'Related Posts for WordPress'          => 'microkids-related-posts/microkids-related-posts.php',
148
			'outbrain'                             => 'outbrain/outbrain.php',
149
			'Shareaholic'                          => 'shareaholic/shareaholic.php',
150
			'Sexybookmarks'                        => 'sexybookmarks/shareaholic.php',
151
		),
152
		'sharedaddy'        => array(
153
			'AddThis'                              => 'addthis/addthis_social_widget.php',
154
			'Add To Any'                           => 'add-to-any/add-to-any.php',
155
			'ShareThis'                            => 'share-this/sharethis.php',
156
			'Shareaholic'                          => 'shareaholic/shareaholic.php',
157
		),
158
		'verification-tools' => array(
159
			'WordPress SEO by Yoast'               => 'wordpress-seo/wp-seo.php',
160
			'WordPress SEO Premium by Yoast'       => 'wordpress-seo-premium/wp-seo-premium.php',
161
			'All in One SEO Pack'                  => 'all-in-one-seo-pack/all_in_one_seo_pack.php',
162
		),
163
		'widget-visibility' => array(
164
			'Widget Logic'                         => 'widget-logic/widget_logic.php',
165
			'Dynamic Widgets'                      => 'dynamic-widgets/dynamic-widgets.php',
166
		),
167
		'sitemaps' => array(
168
			'Google XML Sitemaps'                  => 'google-sitemap-generator/sitemap.php',
169
			'Better WordPress Google XML Sitemaps' => 'bwp-google-xml-sitemaps/bwp-simple-gxs.php',
170
			'Google XML Sitemaps for qTranslate'   => 'google-xml-sitemaps-v3-for-qtranslate/sitemap.php',
171
			'XML Sitemap & Google News feeds'      => 'xml-sitemap-feed/xml-sitemap.php',
172
			'Google Sitemap by BestWebSoft'        => 'google-sitemap-plugin/google-sitemap-plugin.php',
173
			'WordPress SEO by Yoast'               => 'wordpress-seo/wp-seo.php',
174
			'WordPress SEO Premium by Yoast'       => 'wordpress-seo-premium/wp-seo-premium.php',
175
			'All in One SEO Pack'                  => 'all-in-one-seo-pack/all_in_one_seo_pack.php',
176
			'Sitemap'                              => 'sitemap/sitemap.php',
177
			'Simple Wp Sitemap'                    => 'simple-wp-sitemap/simple-wp-sitemap.php',
178
			'Simple Sitemap'                       => 'simple-sitemap/simple-sitemap.php',
179
			'XML Sitemaps'                         => 'xml-sitemaps/xml-sitemaps.php',
180
			'MSM Sitemaps'                         => 'msm-sitemap/msm-sitemap.php',
181
		),
182
	);
183
184
	/**
185
	 * Plugins for which we turn off our Facebook OG Tags implementation.
186
	 *
187
	 * Note: WordPress SEO by Yoast and WordPress SEO Premium by Yoast automatically deactivate
188
	 * Jetpack's Open Graph tags via filter when their Social Meta modules are active.
189
	 *
190
	 * Plugin authors: If you'd like to prevent Jetpack's Open Graph tag generation in your plugin, you can do so via this filter:
191
	 * add_filter( 'jetpack_enable_open_graph', '__return_false' );
192
	 */
193
	private $open_graph_conflicting_plugins = array(
194
		'2-click-socialmedia-buttons/2-click-socialmedia-buttons.php',
195
		                                                         // 2 Click Social Media Buttons
196
		'add-link-to-facebook/add-link-to-facebook.php',         // Add Link to Facebook
197
		'add-meta-tags/add-meta-tags.php',                       // Add Meta Tags
198
		'autodescription/autodescription.php',                   // The SEO Framework
199
		'easy-facebook-share-thumbnails/esft.php',               // Easy Facebook Share Thumbnail
200
		'heateor-open-graph-meta-tags/heateor-open-graph-meta-tags.php',
201
		                                                         // Open Graph Meta Tags by Heateor
202
		'facebook/facebook.php',                                 // Facebook (official plugin)
203
		'facebook-awd/AWD_facebook.php',                         // Facebook AWD All in one
204
		'facebook-featured-image-and-open-graph-meta-tags/fb-featured-image.php',
205
		                                                         // Facebook Featured Image & OG Meta Tags
206
		'facebook-meta-tags/facebook-metatags.php',              // Facebook Meta Tags
207
		'wonderm00ns-simple-facebook-open-graph-tags/wonderm00n-open-graph.php',
208
		                                                         // Facebook Open Graph Meta Tags for WordPress
209
		'facebook-revised-open-graph-meta-tag/index.php',        // Facebook Revised Open Graph Meta Tag
210
		'facebook-thumb-fixer/_facebook-thumb-fixer.php',        // Facebook Thumb Fixer
211
		'facebook-and-digg-thumbnail-generator/facebook-and-digg-thumbnail-generator.php',
212
		                                                         // Fedmich's Facebook Open Graph Meta
213
		'header-footer/plugin.php',                              // Header and Footer
214
		'network-publisher/networkpub.php',                      // Network Publisher
215
		'nextgen-facebook/nextgen-facebook.php',                 // NextGEN Facebook OG
216
		'social-networks-auto-poster-facebook-twitter-g/NextScripts_SNAP.php',
217
		                                                         // NextScripts SNAP
218
		'og-tags/og-tags.php',                                   // OG Tags
219
		'opengraph/opengraph.php',                               // Open Graph
220
		'open-graph-protocol-framework/open-graph-protocol-framework.php',
221
		                                                         // Open Graph Protocol Framework
222
		'seo-facebook-comments/seofacebook.php',                 // SEO Facebook Comments
223
		'seo-ultimate/seo-ultimate.php',                         // SEO Ultimate
224
		'sexybookmarks/sexy-bookmarks.php',                      // Shareaholic
225
		'shareaholic/sexy-bookmarks.php',                        // Shareaholic
226
		'sharepress/sharepress.php',                             // SharePress
227
		'simple-facebook-connect/sfc.php',                       // Simple Facebook Connect
228
		'social-discussions/social-discussions.php',             // Social Discussions
229
		'social-sharing-toolkit/social_sharing_toolkit.php',     // Social Sharing Toolkit
230
		'socialize/socialize.php',                               // Socialize
231
		'only-tweet-like-share-and-google-1/tweet-like-plusone.php',
232
		                                                         // Tweet, Like, Google +1 and Share
233
		'wordbooker/wordbooker.php',                             // Wordbooker
234
		'wpsso/wpsso.php',                                       // WordPress Social Sharing Optimization
235
		'wp-caregiver/wp-caregiver.php',                         // WP Caregiver
236
		'wp-facebook-like-send-open-graph-meta/wp-facebook-like-send-open-graph-meta.php',
237
		                                                         // WP Facebook Like Send & Open Graph Meta
238
		'wp-facebook-open-graph-protocol/wp-facebook-ogp.php',   // WP Facebook Open Graph protocol
239
		'wp-ogp/wp-ogp.php',                                     // WP-OGP
240
		'zoltonorg-social-plugin/zosp.php',                      // Zolton.org Social Plugin
241
		'wp-fb-share-like-button/wp_fb_share-like_widget.php'    // WP Facebook Like Button
242
	);
243
244
	/**
245
	 * Plugins for which we turn off our Twitter Cards Tags implementation.
246
	 */
247
	private $twitter_cards_conflicting_plugins = array(
248
	//	'twitter/twitter.php',                       // The official one handles this on its own.
249
	//	                                             // https://github.com/twitter/wordpress/blob/master/src/Twitter/WordPress/Cards/Compatibility.php
250
		'eewee-twitter-card/index.php',              // Eewee Twitter Card
251
		'ig-twitter-cards/ig-twitter-cards.php',     // IG:Twitter Cards
252
		'jm-twitter-cards/jm-twitter-cards.php',     // JM Twitter Cards
253
		'kevinjohn-gallagher-pure-web-brilliants-social-graph-twitter-cards-extention/kevinjohn_gallagher___social_graph_twitter_output.php',
254
		                                             // Pure Web Brilliant's Social Graph Twitter Cards Extension
255
		'twitter-cards/twitter-cards.php',           // Twitter Cards
256
		'twitter-cards-meta/twitter-cards-meta.php', // Twitter Cards Meta
257
		'wp-twitter-cards/twitter_cards.php',        // WP Twitter Cards
258
	);
259
260
	/**
261
	 * Message to display in admin_notice
262
	 * @var string
263
	 */
264
	public $message = '';
265
266
	/**
267
	 * Error to display in admin_notice
268
	 * @var string
269
	 */
270
	public $error = '';
271
272
	/**
273
	 * Modules that need more privacy description.
274
	 * @var string
275
	 */
276
	public $privacy_checks = '';
277
278
	/**
279
	 * Stats to record once the page loads
280
	 *
281
	 * @var array
282
	 */
283
	public $stats = array();
284
285
	/**
286
	 * Jetpack_Sync object
287
	 */
288
	public $sync;
289
290
	/**
291
	 * Verified data for JSON authorization request
292
	 */
293
	public $json_api_authorization_request = array();
294
295
	/**
296
	 * Holds the singleton instance of this class
297
	 * @since 2.3.3
298
	 * @var Jetpack
299
	 */
300
	static $instance = false;
301
302
	/**
303
	 * Singleton
304
	 * @static
305
	 */
306
	public static function init() {
307
		if ( ! self::$instance ) {
308
			self::$instance = new Jetpack;
309
310
			self::$instance->plugin_upgrade();
311
		}
312
313
		return self::$instance;
314
	}
315
316
	/**
317
	 * Must never be called statically
318
	 */
319
	function plugin_upgrade() {
320
		if ( Jetpack::is_active() ) {
321
			list( $version ) = explode( ':', Jetpack_Options::get_option( 'version' ) );
322
			if ( JETPACK__VERSION != $version ) {
323
324
				// Check which active modules actually exist and remove others from active_modules list
325
				$unfiltered_modules = Jetpack::get_active_modules();
326
				$modules = array_filter( $unfiltered_modules, array( 'Jetpack', 'is_module' ) );
327
				if ( array_diff( $unfiltered_modules, $modules ) ) {
328
					Jetpack::update_active_modules( $modules );
329
				}
330
331
				add_action( 'init', array( __CLASS__, 'activate_new_modules' ) );
332
333
				// Upgrade to 4.3.0
334
				if ( Jetpack_Options::get_option( 'identity_crisis_whitelist' ) ) {
335
					Jetpack_Options::delete_option( 'identity_crisis_whitelist' );
336
				}
337
338
				Jetpack::maybe_set_version_option();
339
			}
340
		}
341
	}
342
343
	static function activate_manage( ) {
344
		if ( did_action( 'init' ) || current_filter() == 'init' ) {
345
			self::activate_module( 'manage', false, false );
346
		} else if ( !  has_action( 'init' , array( __CLASS__, 'activate_manage' ) ) ) {
347
			add_action( 'init', array( __CLASS__, 'activate_manage' ) );
348
		}
349
	}
350
351
	static function update_active_modules( $modules ) {
352
		$current_modules = Jetpack_Options::get_option( 'active_modules', array() );
353
354
		$success = Jetpack_Options::update_option( 'active_modules', array_unique( $modules ) );
355
356
		if ( is_array( $modules ) && is_array( $current_modules ) ) {
357
			$new_active_modules = array_diff( $modules, $current_modules );
358
			foreach( $new_active_modules as $module ) {
359
				/**
360
				 * Fires when a specific module is activated.
361
				 *
362
				 * @since 1.9.0
363
				 *
364
				 * @param string $module Module slug.
365
				 * @param boolean $success whether the module was activated. @since 4.2
366
				 */
367
				do_action( 'jetpack_activate_module', $module, $success );
368
369
				/**
370
				 * Fires when a module is activated.
371
				 * The dynamic part of the filter, $module, is the module slug.
372
				 *
373
				 * @since 1.9.0
374
				 *
375
				 * @param string $module Module slug.
376
				 */
377
				do_action( "jetpack_activate_module_$module", $module );
378
			}
379
380
			$new_deactive_modules = array_diff( $current_modules, $modules );
381
			foreach( $new_deactive_modules as $module ) {
382
				/**
383
				 * Fired after a module has been deactivated.
384
				 *
385
				 * @since 4.2.0
386
				 *
387
				 * @param string $module Module slug.
388
				 * @param boolean $success whether the module was deactivated.
389
				 */
390
				do_action( 'jetpack_deactivate_module', $module, $success );
391
				/**
392
				 * Fires when a module is deactivated.
393
				 * The dynamic part of the filter, $module, is the module slug.
394
				 *
395
				 * @since 1.9.0
396
				 *
397
				 * @param string $module Module slug.
398
				 */
399
				do_action( "jetpack_deactivate_module_$module", $module );
400
			}
401
		}
402
403
		return $success;
404
	}
405
406
	static function delete_active_modules() {
407
		self::update_active_modules( array() );
408
	}
409
410
	/**
411
	 * Constructor.  Initializes WordPress hooks
412
	 */
413
	private function __construct() {
414
		/*
415
		 * Check for and alert any deprecated hooks
416
		 */
417
		add_action( 'init', array( $this, 'deprecated_hooks' ) );
418
419
420
		/*
421
		 * Load things that should only be in Network Admin.
422
		 *
423
		 * For now blow away everything else until a more full
424
		 * understanding of what is needed at the network level is
425
		 * available
426
		 */
427
		if( is_multisite() ) {
428
			Jetpack_Network::init();
429
		}
430
431
		add_action( 'set_user_role', array( $this, 'maybe_clear_other_linked_admins_transient' ), 10, 3 );
432
433
		// Unlink user before deleting the user from .com
434
		add_action( 'deleted_user', array( $this, 'unlink_user' ), 10, 1 );
435
		add_action( 'remove_user_from_blog', array( $this, 'unlink_user' ), 10, 1 );
436
437
		if ( defined( 'XMLRPC_REQUEST' ) && XMLRPC_REQUEST && isset( $_GET['for'] ) && 'jetpack' == $_GET['for'] ) {
438
			@ini_set( 'display_errors', false ); // Display errors can cause the XML to be not well formed.
439
440
			require_once JETPACK__PLUGIN_DIR . 'class.jetpack-xmlrpc-server.php';
441
			$this->xmlrpc_server = new Jetpack_XMLRPC_Server();
442
443
			$this->require_jetpack_authentication();
444
445
			if ( Jetpack::is_active() ) {
446
				// Hack to preserve $HTTP_RAW_POST_DATA
447
				add_filter( 'xmlrpc_methods', array( $this, 'xmlrpc_methods' ) );
448
449
				$signed = $this->verify_xml_rpc_signature();
450
				if ( $signed && ! is_wp_error( $signed ) ) {
451
					// The actual API methods.
452
					add_filter( 'xmlrpc_methods', array( $this->xmlrpc_server, 'xmlrpc_methods' ) );
453
				} else {
454
					// The jetpack.authorize method should be available for unauthenticated users on a site with an
455
					// active Jetpack connection, so that additional users can link their account.
456
					add_filter( 'xmlrpc_methods', array( $this->xmlrpc_server, 'authorize_xmlrpc_methods' ) );
457
				}
458
			} else {
459
				// The bootstrap API methods.
460
				add_filter( 'xmlrpc_methods', array( $this->xmlrpc_server, 'bootstrap_xmlrpc_methods' ) );
461
			}
462
463
			// Now that no one can authenticate, and we're whitelisting all XML-RPC methods, force enable_xmlrpc on.
464
			add_filter( 'pre_option_enable_xmlrpc', '__return_true' );
465
		} elseif ( is_admin() && isset( $_POST['action'] ) && 'jetpack_upload_file' == $_POST['action'] ) {
466
			$this->require_jetpack_authentication();
467
			$this->add_remote_request_handlers();
468
		} else {
469
			if ( Jetpack::is_active() ) {
470
				add_action( 'login_form_jetpack_json_api_authorization', array( &$this, 'login_form_json_api_authorization' ) );
471
				add_filter( 'xmlrpc_methods', array( $this, 'public_xmlrpc_methods' ) );
472
			}
473
		}
474
475
		if ( Jetpack::is_active() ) {
476
			Jetpack_Heartbeat::init();
477
		}
478
479
		add_action( 'jetpack_clean_nonces', array( 'Jetpack', 'clean_nonces' ) );
480
		if ( ! wp_next_scheduled( 'jetpack_clean_nonces' ) ) {
481
			wp_schedule_event( time(), 'hourly', 'jetpack_clean_nonces' );
482
		}
483
484
		add_filter( 'xmlrpc_blog_options', array( $this, 'xmlrpc_options' ) );
485
486
		add_action( 'admin_init', array( $this, 'admin_init' ) );
487
		add_action( 'admin_init', array( $this, 'dismiss_jetpack_notice' ) );
488
489
		add_filter( 'admin_body_class', array( $this, 'admin_body_class' ) );
490
491
		add_action( 'wp_dashboard_setup', array( $this, 'wp_dashboard_setup' ) );
492
		// Filter the dashboard meta box order to swap the new one in in place of the old one.
493
		add_filter( 'get_user_option_meta-box-order_dashboard', array( $this, 'get_user_option_meta_box_order_dashboard' ) );
494
495
		// returns HTTPS support status
496
		add_action( 'wp_ajax_jetpack-recheck-ssl', array( $this, 'ajax_recheck_ssl' ) );
497
498
		// If any module option is updated before Jump Start is dismissed, hide Jump Start.
499
		add_action( 'update_option', array( $this, 'jumpstart_has_updated_module_option' ) );
500
501
		// JITM AJAX callback function
502
		add_action( 'wp_ajax_jitm_ajax',  array( $this, 'jetpack_jitm_ajax_callback' ) );
503
504
		// Universal ajax callback for all tracking events triggered via js
505
		add_action( 'wp_ajax_jetpack_tracks', array( $this, 'jetpack_admin_ajax_tracks_callback' ) );
506
507
		add_action( 'wp_loaded', array( $this, 'register_assets' ) );
508
		add_action( 'wp_enqueue_scripts', array( $this, 'devicepx' ) );
509
		add_action( 'customize_controls_enqueue_scripts', array( $this, 'devicepx' ) );
510
		add_action( 'admin_enqueue_scripts', array( $this, 'devicepx' ) );
511
512
		add_action( 'plugins_loaded', array( $this, 'extra_oembed_providers' ), 100 );
513
514
		/**
515
		 * These actions run checks to load additional files.
516
		 * They check for external files or plugins, so they need to run as late as possible.
517
		 */
518
		add_action( 'wp_head', array( $this, 'check_open_graph' ),       1 );
519
		add_action( 'plugins_loaded', array( $this, 'check_twitter_tags' ),     999 );
520
		add_action( 'plugins_loaded', array( $this, 'check_rest_api_compat' ), 1000 );
521
522
		add_filter( 'plugins_url',      array( 'Jetpack', 'maybe_min_asset' ),     1, 3 );
523
		add_filter( 'style_loader_tag', array( 'Jetpack', 'maybe_inline_style' ), 10, 2 );
524
525
		add_filter( 'map_meta_cap', array( $this, 'jetpack_custom_caps' ), 1, 4 );
526
527
		add_filter( 'jetpack_get_default_modules', array( $this, 'filter_default_modules' ) );
528
		add_filter( 'jetpack_get_default_modules', array( $this, 'handle_deprecated_modules' ), 99 );
529
530
		// A filter to control all just in time messages
531
		add_filter( 'jetpack_just_in_time_msgs', '__return_false' );
532
533
		/**
534
		 * This is the hack to concatinate all css files into one.
535
		 * For description and reasoning see the implode_frontend_css method
536
		 *
537
		 * Super late priority so we catch all the registered styles
538
		 */
539
		if( !is_admin() ) {
540
			add_action( 'wp_print_styles', array( $this, 'implode_frontend_css' ), -1 ); // Run first
541
			add_action( 'wp_print_footer_scripts', array( $this, 'implode_frontend_css' ), -1 ); // Run first to trigger before `print_late_styles`
542
		}
543
544
	}
545
546
	function jetpack_admin_ajax_tracks_callback() {
547
		// Check for nonce
548
		if ( ! isset( $_REQUEST['tracksNonce'] ) || ! wp_verify_nonce( $_REQUEST['tracksNonce'], 'jp-tracks-ajax-nonce' ) ) {
549
			wp_die( 'Permissions check failed.' );
550
		}
551
552
		if ( ! isset( $_REQUEST['tracksEventName'] ) || ! isset( $_REQUEST['tracksEventType'] )  ) {
553
			wp_die( 'No valid event name or type.' );
554
		}
555
556
		$tracks_data = array();
557
		if ( 'click' === $_REQUEST['tracksEventType'] && isset( $_REQUEST['tracksEventProp'] ) ) {
558
			$tracks_data = array( 'clicked' => $_REQUEST['tracksEventProp'] );
559
		}
560
561
		JetpackTracking::record_user_event( $_REQUEST['tracksEventName'], $tracks_data );
562
		wp_send_json_success();
563
		wp_die();
564
	}
565
566
	/**
567
	 * The callback for the JITM ajax requests.
568
	 */
569
	function jetpack_jitm_ajax_callback() {
570
		// Check for nonce
571
		if ( ! isset( $_REQUEST['jitmNonce'] ) || ! wp_verify_nonce( $_REQUEST['jitmNonce'], 'jetpack-jitm-nonce' ) ) {
572
			wp_die( 'Module activation failed due to lack of appropriate permissions' );
573
		}
574
		if ( isset( $_REQUEST['jitmActionToTake'] ) && 'activate' == $_REQUEST['jitmActionToTake'] ) {
575
			$module_slug = $_REQUEST['jitmModule'];
576
			Jetpack::log( 'activate', $module_slug );
577
			Jetpack::activate_module( $module_slug, false, false );
578
			Jetpack::state( 'message', 'no_message' );
579
580
			//A Jetpack module is being activated through a JITM, track it
581
			$this->stat( 'jitm', $module_slug.'-activated-' . JETPACK__VERSION );
582
			$this->do_stats( 'server_side' );
583
584
			wp_send_json_success();
585
		}
586
		if ( isset( $_REQUEST['jitmActionToTake'] ) && 'dismiss' == $_REQUEST['jitmActionToTake'] ) {
587
			// get the hide_jitm options array
588
			$jetpack_hide_jitm = Jetpack_Options::get_option( 'hide_jitm' );
589
			$module_slug = $_REQUEST['jitmModule'];
590
591
			if( ! $jetpack_hide_jitm ) {
592
				$jetpack_hide_jitm = array(
593
					$module_slug => 'hide'
594
				);
595
			} else {
596
				$jetpack_hide_jitm[$module_slug] = 'hide';
597
			}
598
599
			Jetpack_Options::update_option( 'hide_jitm', $jetpack_hide_jitm );
600
601
			//jitm is being dismissed forever, track it
602
			$this->stat( 'jitm', $module_slug.'-dismissed-' . JETPACK__VERSION );
603
			$this->do_stats( 'server_side' );
604
605
			wp_send_json_success();
606
		}
607 View Code Duplication
		if ( isset( $_REQUEST['jitmActionToTake'] ) && 'launch' == $_REQUEST['jitmActionToTake'] ) {
608
			$module_slug = $_REQUEST['jitmModule'];
609
610
			// User went to WordPress.com, track this
611
			$this->stat( 'jitm', $module_slug.'-wordpress-tools-' . JETPACK__VERSION );
612
			$this->do_stats( 'server_side' );
613
614
			wp_send_json_success();
615
		}
616 View Code Duplication
		if ( isset( $_REQUEST['jitmActionToTake'] ) && 'viewed' == $_REQUEST['jitmActionToTake'] ) {
617
			$track = $_REQUEST['jitmModule'];
618
619
			// User is viewing JITM, track it.
620
			$this->stat( 'jitm', $track . '-viewed-' . JETPACK__VERSION );
621
			$this->do_stats( 'server_side' );
622
623
			wp_send_json_success();
624
		}
625
	}
626
627
	/**
628
	 * If there are any stats that need to be pushed, but haven't been, push them now.
629
	 */
630
	function __destruct() {
631
		if ( ! empty( $this->stats ) ) {
632
			$this->do_stats( 'server_side' );
633
		}
634
	}
635
636
	function jetpack_custom_caps( $caps, $cap, $user_id, $args ) {
637
		switch( $cap ) {
638
			case 'jetpack_connect' :
639
			case 'jetpack_reconnect' :
640
				if ( Jetpack::is_development_mode() ) {
641
					$caps = array( 'do_not_allow' );
642
					break;
643
				}
644
				/**
645
				 * Pass through. If it's not development mode, these should match disconnect.
646
				 * Let users disconnect if it's development mode, just in case things glitch.
647
				 */
648
			case 'jetpack_disconnect' :
649
				/**
650
				 * In multisite, can individual site admins manage their own connection?
651
				 *
652
				 * Ideally, this should be extracted out to a separate filter in the Jetpack_Network class.
653
				 */
654
				if ( is_multisite() && ! is_super_admin() && is_plugin_active_for_network( 'jetpack/jetpack.php' ) ) {
655
					if ( ! Jetpack_Network::init()->get_option( 'sub-site-connection-override' ) ) {
656
						/**
657
						 * We need to update the option name -- it's terribly unclear which
658
						 * direction the override goes.
659
						 *
660
						 * @todo: Update the option name to `sub-sites-can-manage-own-connections`
661
						 */
662
						$caps = array( 'do_not_allow' );
663
						break;
664
					}
665
				}
666
667
				$caps = array( 'manage_options' );
668
				break;
669
			case 'jetpack_manage_modules' :
670
			case 'jetpack_activate_modules' :
671
			case 'jetpack_deactivate_modules' :
672
				$caps = array( 'manage_options' );
673
				break;
674
			case 'jetpack_configure_modules' :
675
				$caps = array( 'manage_options' );
676
				break;
677
			case 'jetpack_network_admin_page':
678
			case 'jetpack_network_settings_page':
679
				$caps = array( 'manage_network_plugins' );
680
				break;
681
			case 'jetpack_network_sites_page':
682
				$caps = array( 'manage_sites' );
683
				break;
684
			case 'jetpack_admin_page' :
685
				if ( Jetpack::is_development_mode() ) {
686
					$caps = array( 'manage_options' );
687
					break;
688
				} else {
689
					$caps = array( 'read' );
690
				}
691
				break;
692
			case 'jetpack_connect_user' :
693
				if ( Jetpack::is_development_mode() ) {
694
					$caps = array( 'do_not_allow' );
695
					break;
696
				}
697
				$caps = array( 'read' );
698
				break;
699
		}
700
		return $caps;
701
	}
702
703
	function require_jetpack_authentication() {
704
		// Don't let anyone authenticate
705
		$_COOKIE = array();
706
		remove_all_filters( 'authenticate' );
707
		remove_all_actions( 'wp_login_failed' );
708
709
		if ( Jetpack::is_active() ) {
710
			// Allow Jetpack authentication
711
			add_filter( 'authenticate', array( $this, 'authenticate_jetpack' ), 10, 3 );
712
		}
713
	}
714
715
	/**
716
	 * Load language files
717
	 * @action plugins_loaded
718
	 */
719
	public static function plugin_textdomain() {
720
		// Note to self, the third argument must not be hardcoded, to account for relocated folders.
721
		load_plugin_textdomain( 'jetpack', false, dirname( plugin_basename( JETPACK__PLUGIN_FILE ) ) . '/languages/' );
722
	}
723
724
	/**
725
	 * Register assets for use in various modules and the Jetpack admin page.
726
	 *
727
	 * @uses wp_script_is, wp_register_script, plugins_url
728
	 * @action wp_loaded
729
	 * @return null
730
	 */
731
	public function register_assets() {
732
		if ( ! wp_script_is( 'spin', 'registered' ) ) {
733
			wp_register_script( 'spin', plugins_url( '_inc/spin.js', JETPACK__PLUGIN_FILE ), false, '1.3' );
734
		}
735
736 View Code Duplication
		if ( ! wp_script_is( 'jquery.spin', 'registered' ) ) {
737
			wp_register_script( 'jquery.spin', plugins_url( '_inc/jquery.spin.js', JETPACK__PLUGIN_FILE ) , array( 'jquery', 'spin' ), '1.3' );
738
		}
739
740 View Code Duplication
		if ( ! wp_script_is( 'jetpack-gallery-settings', 'registered' ) ) {
741
			wp_register_script( 'jetpack-gallery-settings', plugins_url( '_inc/gallery-settings.js', JETPACK__PLUGIN_FILE ), array( 'media-views' ), '20121225' );
742
		}
743
744 View Code Duplication
		if ( ! wp_script_is( 'jetpack-twitter-timeline', 'registered' ) ) {
745
			wp_register_script( 'jetpack-twitter-timeline', plugins_url( '_inc/twitter-timeline.js', JETPACK__PLUGIN_FILE ) , array( 'jquery' ), '4.0.0', true );
746
		}
747
748
		if ( ! wp_script_is( 'jetpack-facebook-embed', 'registered' ) ) {
749
			wp_register_script( 'jetpack-facebook-embed', plugins_url( '_inc/facebook-embed.js', __FILE__ ), array( 'jquery' ), null, true );
750
751
			/** This filter is documented in modules/sharedaddy/sharing-sources.php */
752
			$fb_app_id = apply_filters( 'jetpack_sharing_facebook_app_id', '249643311490' );
753
			if ( ! is_numeric( $fb_app_id ) ) {
754
				$fb_app_id = '';
755
			}
756
			wp_localize_script(
757
				'jetpack-facebook-embed',
758
				'jpfbembed',
759
				array(
760
					'appid' => $fb_app_id,
761
					'locale' => $this->get_locale(),
762
				)
763
			);
764
		}
765
766
		/**
767
		 * As jetpack_register_genericons is by default fired off a hook,
768
		 * the hook may have already fired by this point.
769
		 * So, let's just trigger it manually.
770
		 */
771
		require_once( JETPACK__PLUGIN_DIR . '_inc/genericons.php' );
772
		jetpack_register_genericons();
773
774
		/**
775
		 * Register the social logos
776
		 */
777
		require_once( JETPACK__PLUGIN_DIR . '_inc/social-logos.php' );
778
		jetpack_register_social_logos();
779
780 View Code Duplication
		if ( ! wp_style_is( 'jetpack-icons', 'registered' ) )
781
			wp_register_style( 'jetpack-icons', plugins_url( 'css/jetpack-icons.min.css', JETPACK__PLUGIN_FILE ), false, JETPACK__VERSION );
782
	}
783
784
	/**
785
	 * Guess locale from language code.
786
	 *
787
	 * @param string $lang Language code.
788
	 * @return string|bool
789
	 */
790 View Code Duplication
	function guess_locale_from_lang( $lang ) {
791
		if ( 'en' === $lang || 'en_US' === $lang || ! $lang ) {
792
			return 'en_US';
793
		}
794
795
		if ( ! class_exists( 'GP_Locales' ) ) {
796
			if ( ! defined( 'JETPACK__GLOTPRESS_LOCALES_PATH' ) || ! file_exists( JETPACK__GLOTPRESS_LOCALES_PATH ) ) {
797
				return false;
798
			}
799
800
			require JETPACK__GLOTPRESS_LOCALES_PATH;
801
		}
802
803
		if ( defined( 'IS_WPCOM' ) && IS_WPCOM ) {
804
			// WP.com: get_locale() returns 'it'
805
			$locale = GP_Locales::by_slug( $lang );
806
		} else {
807
			// Jetpack: get_locale() returns 'it_IT';
808
			$locale = GP_Locales::by_field( 'facebook_locale', $lang );
809
		}
810
811
		if ( ! $locale ) {
812
			return false;
813
		}
814
815
		if ( empty( $locale->facebook_locale ) ) {
816
			if ( empty( $locale->wp_locale ) ) {
817
				return false;
818
			} else {
819
				// Facebook SDK is smart enough to fall back to en_US if a
820
				// locale isn't supported. Since supported Facebook locales
821
				// can fall out of sync, we'll attempt to use the known
822
				// wp_locale value and rely on said fallback.
823
				return $locale->wp_locale;
824
			}
825
		}
826
827
		return $locale->facebook_locale;
828
	}
829
830
	/**
831
	 * Get the locale.
832
	 *
833
	 * @return string|bool
834
	 */
835
	function get_locale() {
836
		$locale = $this->guess_locale_from_lang( get_locale() );
837
838
		if ( ! $locale ) {
839
			$locale = 'en_US';
840
		}
841
842
		return $locale;
843
	}
844
845
	/**
846
	 * Device Pixels support
847
	 * This improves the resolution of gravatars and wordpress.com uploads on hi-res and zoomed browsers.
848
	 */
849
	function devicepx() {
850
		if ( Jetpack::is_active() ) {
851
			wp_enqueue_script( 'devicepx', set_url_scheme( 'http://s0.wp.com/wp-content/js/devicepx-jetpack.js' ), array(), gmdate( 'oW' ), true );
852
		}
853
	}
854
855
	/**
856
	 * Return the network_site_url so that .com knows what network this site is a part of.
857
	 * @param  bool $option
858
	 * @return string
859
	 */
860
	public function jetpack_main_network_site_option( $option ) {
861
		return network_site_url();
862
	}
863
	/**
864
	 * Network Name.
865
	 */
866
	static function network_name( $option = null ) {
867
		global $current_site;
868
		return $current_site->site_name;
869
	}
870
	/**
871
	 * Does the network allow new user and site registrations.
872
	 * @return string
873
	 */
874
	static function network_allow_new_registrations( $option = null ) {
875
		return ( in_array( get_site_option( 'registration' ), array('none', 'user', 'blog', 'all' ) ) ? get_site_option( 'registration') : 'none' );
876
	}
877
	/**
878
	 * Does the network allow admins to add new users.
879
	 * @return boolian
880
	 */
881
	static function network_add_new_users( $option = null ) {
882
		return (bool) get_site_option( 'add_new_users' );
883
	}
884
	/**
885
	 * File upload psace left per site in MB.
886
	 *  -1 means NO LIMIT.
887
	 * @return number
888
	 */
889
	static function network_site_upload_space( $option = null ) {
890
		// value in MB
891
		return ( get_site_option( 'upload_space_check_disabled' ) ? -1 : get_space_allowed() );
892
	}
893
894
	/**
895
	 * Network allowed file types.
896
	 * @return string
897
	 */
898
	static function network_upload_file_types( $option = null ) {
899
		return get_site_option( 'upload_filetypes', 'jpg jpeg png gif' );
900
	}
901
902
	/**
903
	 * Maximum file upload size set by the network.
904
	 * @return number
905
	 */
906
	static function network_max_upload_file_size( $option = null ) {
907
		// value in KB
908
		return get_site_option( 'fileupload_maxk', 300 );
909
	}
910
911
	/**
912
	 * Lets us know if a site allows admins to manage the network.
913
	 * @return array
914
	 */
915
	static function network_enable_administration_menus( $option = null ) {
916
		return get_site_option( 'menu_items' );
917
	}
918
919
	/**
920
	 * If a user has been promoted to or demoted from admin, we need to clear the
921
	 * jetpack_other_linked_admins transient.
922
	 *
923
	 * @param $user_id
924
	 * @param $role
925
	 * @param $old_roles
926
	 */
927
	function maybe_clear_other_linked_admins_transient( $user_id, $role, $old_roles ) {
928
		if ( 'administrator' == $role || ( is_array( $old_roles ) && in_array( 'administrator', $old_roles ) )
929
		) {
930
			delete_transient( 'jetpack_other_linked_admins' );
931
		}
932
	}
933
934
	/**
935
	 * Checks to see if there are any other users available to become primary
936
	 * Users must both:
937
	 * - Be linked to wpcom
938
	 * - Be an admin
939
	 *
940
	 * @return mixed False if no other users are linked, Int if there are.
941
	 */
942
	static function get_other_linked_admins() {
943
		$other_linked_users = get_transient( 'jetpack_other_linked_admins' );
944
945
		if ( false === $other_linked_users ) {
946
			$admins = get_users( array( 'role' => 'administrator' ) );
947
			if ( count( $admins ) > 1 ) {
948
				$available = array();
949
				foreach ( $admins as $admin ) {
950
					if ( Jetpack::is_user_connected( $admin->ID ) ) {
951
						$available[] = $admin->ID;
952
					}
953
				}
954
955
				$count_connected_admins = count( $available );
956
				if ( count( $available ) > 1 ) {
957
					$other_linked_users = $count_connected_admins;
958
				} else {
959
					$other_linked_users = 0;
960
				}
961
			} else {
962
				$other_linked_users = 0;
963
			}
964
965
			set_transient( 'jetpack_other_linked_admins', $other_linked_users, HOUR_IN_SECONDS );
966
		}
967
968
		return ( 0 === $other_linked_users ) ? false : $other_linked_users;
969
	}
970
971
	/**
972
	 * Return whether we are dealing with a multi network setup or not.
973
	 * The reason we are type casting this is because we want to avoid the situation where
974
	 * the result is false since when is_main_network_option return false it cases
975
	 * the rest the get_option( 'jetpack_is_multi_network' ); to return the value that is set in the
976
	 * database which could be set to anything as opposed to what this function returns.
977
	 * @param  bool  $option
978
	 *
979
	 * @return boolean
980
	 */
981
	public function is_main_network_option( $option ) {
982
		// return '1' or ''
983
		return (string) (bool) Jetpack::is_multi_network();
984
	}
985
986
	/**
987
	 * Return true if we are with multi-site or multi-network false if we are dealing with single site.
988
	 *
989
	 * @param  string  $option
990
	 * @return boolean
991
	 */
992
	public function is_multisite( $option ) {
993
		return (string) (bool) is_multisite();
994
	}
995
996
	/**
997
	 * Implemented since there is no core is multi network function
998
	 * Right now there is no way to tell if we which network is the dominant network on the system
999
	 *
1000
	 * @since  3.3
1001
	 * @return boolean
1002
	 */
1003
	public static function is_multi_network() {
1004
		global  $wpdb;
1005
1006
		// if we don't have a multi site setup no need to do any more
1007
		if ( ! is_multisite() ) {
1008
			return false;
1009
		}
1010
1011
		$num_sites = $wpdb->get_var( "SELECT COUNT(*) FROM {$wpdb->site}" );
1012
		if ( $num_sites > 1 ) {
1013
			return true;
1014
		} else {
1015
			return false;
1016
		}
1017
	}
1018
1019
	/**
1020
	 * Trigger an update to the main_network_site when we update the siteurl of a site.
1021
	 * @return null
1022
	 */
1023
	function update_jetpack_main_network_site_option() {
1024
		_deprecated_function( __METHOD__, 'jetpack-4.2' );
1025
	}
1026
	/**
1027
	 * Triggered after a user updates the network settings via Network Settings Admin Page
1028
	 *
1029
	 */
1030
	function update_jetpack_network_settings() {
1031
		_deprecated_function( __METHOD__, 'jetpack-4.2' );
1032
		// Only sync this info for the main network site.
1033
	}
1034
1035
	/**
1036
	 * Get back if the current site is single user site.
1037
	 *
1038
	 * @return bool
1039
	 */
1040
	public static function is_single_user_site() {
1041
		global $wpdb;
1042
		$some_users = $wpdb->get_var( "select count(*) from (select user_id from $wpdb->usermeta where meta_key = '{$wpdb->prefix}capabilities' LIMIT 2) as someusers" );
1043
		return 1 === (int) $some_users;
1044
	}
1045
1046
	/**
1047
	 * Returns true if the site has file write access false otherwise.
1048
	 * @return string ( '1' | '0' )
1049
	 **/
1050
	public static function file_system_write_access() {
1051
		if ( ! function_exists( 'get_filesystem_method' ) ) {
1052
			require_once( ABSPATH . 'wp-admin/includes/file.php' );
1053
		}
1054
1055
		require_once( ABSPATH . 'wp-admin/includes/template.php' );
1056
1057
		$filesystem_method = get_filesystem_method();
1058
		if ( $filesystem_method === 'direct' ) {
1059
			return 1;
1060
		}
1061
1062
		ob_start();
1063
		$filesystem_credentials_are_stored = request_filesystem_credentials( self_admin_url() );
1064
		ob_end_clean();
1065
		if ( $filesystem_credentials_are_stored ) {
1066
			return 1;
1067
		}
1068
		return 0;
1069
	}
1070
1071
	/**
1072
	 * Finds out if a site is using a version control system.
1073
	 * @return string ( '1' | '0' )
1074
	 **/
1075
	public static function is_version_controlled() {
1076
		_deprecated_function( __METHOD__, 'jetpack-4.2', 'Jetpack_Sync_Functions::is_version_controlled' );
1077
		return (string) (int) Jetpack_Sync_Functions::is_version_controlled();
1078
	}
1079
1080
	/**
1081
	 * Determines whether the current theme supports featured images or not.
1082
	 * @return string ( '1' | '0' )
1083
	 */
1084
	public static function featured_images_enabled() {
1085
		_deprecated_function( __METHOD__, 'jetpack-4.2' );
1086
		return current_theme_supports( 'post-thumbnails' ) ? '1' : '0';
1087
	}
1088
1089
	/**
1090
	 * jetpack_updates is saved in the following schema:
1091
	 *
1092
	 * array (
1093
	 *      'plugins'                       => (int) Number of plugin updates available.
1094
	 *      'themes'                        => (int) Number of theme updates available.
1095
	 *      'wordpress'                     => (int) Number of WordPress core updates available.
1096
	 *      'translations'                  => (int) Number of translation updates available.
1097
	 *      'total'                         => (int) Total of all available updates.
1098
	 *      'wp_update_version'             => (string) The latest available version of WordPress, only present if a WordPress update is needed.
1099
	 * )
1100
	 * @return array
1101
	 */
1102
	public static function get_updates() {
1103
		$update_data = wp_get_update_data();
1104
1105
		// Stores the individual update counts as well as the total count.
1106
		if ( isset( $update_data['counts'] ) ) {
1107
			$updates = $update_data['counts'];
1108
		}
1109
1110
		// If we need to update WordPress core, let's find the latest version number.
1111 View Code Duplication
		if ( ! empty( $updates['wordpress'] ) ) {
1112
			$cur = get_preferred_from_update_core();
1113
			if ( isset( $cur->response ) && 'upgrade' === $cur->response ) {
1114
				$updates['wp_update_version'] = $cur->current;
1115
			}
1116
		}
1117
		return isset( $updates ) ? $updates : array();
1118
	}
1119
1120
	public static function get_update_details() {
1121
		$update_details = array(
1122
			'update_core' => get_site_transient( 'update_core' ),
1123
			'update_plugins' => get_site_transient( 'update_plugins' ),
1124
			'update_themes' => get_site_transient( 'update_themes' ),
1125
		);
1126
		return $update_details;
1127
	}
1128
1129
	public static function refresh_update_data() {
1130
		_deprecated_function( __METHOD__, 'jetpack-4.2' );
1131
1132
	}
1133
1134
	public static function refresh_theme_data() {
1135
		_deprecated_function( __METHOD__, 'jetpack-4.2' );
1136
	}
1137
1138
	/**
1139
	 * Is Jetpack active?
1140
	 */
1141
	public static function is_active() {
1142
		return (bool) Jetpack_Data::get_access_token( JETPACK_MASTER_USER );
1143
	}
1144
1145
	/**
1146
	 * Is Jetpack in development (offline) mode?
1147
	 */
1148
	public static function is_development_mode() {
1149
		$development_mode = false;
1150
1151
		if ( defined( 'JETPACK_DEV_DEBUG' ) ) {
1152
			$development_mode = JETPACK_DEV_DEBUG;
1153
		}
1154
1155
		elseif ( site_url() && false === strpos( site_url(), '.' ) ) {
1156
			$development_mode = true;
1157
		}
1158
		/**
1159
		 * Filters Jetpack's development mode.
1160
		 *
1161
		 * @see https://jetpack.com/support/development-mode/
1162
		 *
1163
		 * @since 2.2.1
1164
		 *
1165
		 * @param bool $development_mode Is Jetpack's development mode active.
1166
		 */
1167
		return apply_filters( 'jetpack_development_mode', $development_mode );
1168
	}
1169
1170
	/**
1171
	* Get Jetpack development mode notice text and notice class.
1172
	*
1173
	* Mirrors the checks made in Jetpack::is_development_mode
1174
	*
1175
	*/
1176
	public static function show_development_mode_notice() {
1177
		if ( Jetpack::is_development_mode() ) {
1178
			if ( defined( 'JETPACK_DEV_DEBUG' ) && JETPACK_DEV_DEBUG ) {
1179
				$notice = sprintf(
1180
					/* translators: %s is a URL */
1181
					__( 'In <a href="%s" target="_blank">Development Mode</a>, via the JETPACK_DEV_DEBUG constant being defined in wp-config.php or elsewhere.', 'jetpack' ),
1182
					'https://jetpack.com/support/development-mode/'
1183
				);
1184
			} elseif ( site_url() && false === strpos( site_url(), '.' ) ) {
1185
				$notice = sprintf(
1186
					/* translators: %s is a URL */
1187
					__( 'In <a href="%s" target="_blank">Development Mode</a>, via site URL lacking a dot (e.g. http://localhost).', 'jetpack' ),
1188
					'https://jetpack.com/support/development-mode/'
1189
				);
1190
			} else {
1191
				$notice = sprintf(
1192
					/* translators: %s is a URL */
1193
					__( 'In <a href="%s" target="_blank">Development Mode</a>, via the jetpack_development_mode filter.', 'jetpack' ),
1194
					'https://jetpack.com/support/development-mode/'
1195
				);
1196
			}
1197
1198
			echo '<div class="updated" style="border-color: #f0821e;"><p>' . $notice . '</p></div>';
1199
		}
1200
1201
		// Throw up a notice if using a development version and as for feedback.
1202
		if ( Jetpack::is_development_version() ) {
1203
			/* translators: %s is a URL */
1204
			$notice = sprintf( __( 'You are currently running a development version of Jetpack. <a href="%s" target="_blank">Submit your feedback</a>', 'jetpack' ), 'https://jetpack.com/contact-support/beta-group/' );
1205
1206
			echo '<div class="updated" style="border-color: #f0821e;"><p>' . $notice . '</p></div>';
1207
		}
1208
		// Throw up a notice if using staging mode
1209
		if ( Jetpack::is_staging_site() ) {
1210
			/* translators: %s is a URL */
1211
			$notice = sprintf( __( 'You are running Jetpack on a <a href="%s" target="_blank">staging server</a>.', 'jetpack' ), 'https://jetpack.com/support/staging-sites/' );
1212
1213
			echo '<div class="updated" style="border-color: #f0821e;"><p>' . $notice . '</p></div>';
1214
		}
1215
	}
1216
1217
	/**
1218
	 * Whether Jetpack's version maps to a public release, or a development version.
1219
	 */
1220
	public static function is_development_version() {
1221
		/**
1222
		 * Allows filtering whether this is a development version of Jetpack.
1223
		 *
1224
		 * This filter is especially useful for tests.
1225
		 *
1226
		 * @since 4.3.0
1227
		 *
1228
		 * @param bool $development_version Is this a develoment version of Jetpack?
1229
		 */
1230
		return (bool) apply_filters(
1231
			'jetpack_development_version',
1232
			! preg_match( '/^\d+(\.\d+)+$/', JETPACK__VERSION )
1233
		);
1234
	}
1235
1236
	/**
1237
	 * Is a given user (or the current user if none is specified) linked to a WordPress.com user?
1238
	 */
1239
	public static function is_user_connected( $user_id = false ) {
1240
		$user_id = false === $user_id ? get_current_user_id() : absint( $user_id );
1241
		if ( ! $user_id ) {
1242
			return false;
1243
		}
1244
1245
		return (bool) Jetpack_Data::get_access_token( $user_id );
1246
	}
1247
1248
	/**
1249
	 * Get the wpcom user data of the current|specified connected user.
1250
	 */
1251
	public static function get_connected_user_data( $user_id = null ) {
1252
		if ( ! $user_id ) {
1253
			$user_id = get_current_user_id();
1254
		}
1255
1256
		$transient_key = "jetpack_connected_user_data_$user_id";
1257
1258
		if ( $cached_user_data = get_transient( $transient_key ) ) {
1259
			return $cached_user_data;
1260
		}
1261
1262
		Jetpack::load_xml_rpc_client();
1263
		$xml = new Jetpack_IXR_Client( array(
1264
			'user_id' => $user_id,
1265
		) );
1266
		$xml->query( 'wpcom.getUser' );
1267
		if ( ! $xml->isError() ) {
1268
			$user_data = $xml->getResponse();
1269
			set_transient( $transient_key, $xml->getResponse(), DAY_IN_SECONDS );
1270
			return $user_data;
1271
		}
1272
1273
		return false;
1274
	}
1275
1276
	/**
1277
	 * Get the wpcom email of the current|specified connected user.
1278
	 */
1279 View Code Duplication
	public static function get_connected_user_email( $user_id = null ) {
1280
		if ( ! $user_id ) {
1281
			$user_id = get_current_user_id();
1282
		}
1283
		Jetpack::load_xml_rpc_client();
1284
		$xml = new Jetpack_IXR_Client( array(
1285
			'user_id' => $user_id,
1286
		) );
1287
		$xml->query( 'wpcom.getUserEmail' );
1288
		if ( ! $xml->isError() ) {
1289
			return $xml->getResponse();
1290
		}
1291
		return false;
1292
	}
1293
1294
	/**
1295
	 * Get the wpcom email of the master user.
1296
	 */
1297
	public static function get_master_user_email() {
1298
		$master_user_id = Jetpack_Options::get_option( 'master_user' );
1299
		if ( $master_user_id ) {
1300
			return self::get_connected_user_email( $master_user_id );
1301
		}
1302
		return '';
1303
	}
1304
1305
	function current_user_is_connection_owner() {
1306
		$user_token = Jetpack_Data::get_access_token( JETPACK_MASTER_USER );
1307
		return $user_token && is_object( $user_token ) && isset( $user_token->external_user_id ) && get_current_user_id() === $user_token->external_user_id;
1308
	}
1309
1310
	/**
1311
	 * Add any extra oEmbed providers that we know about and use on wpcom for feature parity.
1312
	 */
1313
	function extra_oembed_providers() {
1314
		// Cloudup: https://dev.cloudup.com/#oembed
1315
		wp_oembed_add_provider( 'https://cloudup.com/*' , 'https://cloudup.com/oembed' );
1316
		wp_oembed_add_provider( 'https://me.sh/*', 'https://me.sh/oembed?format=json' );
1317
		wp_oembed_add_provider( '#https?://(www\.)?gfycat\.com/.*#i', 'https://api.gfycat.com/v1/oembed', true );
1318
		wp_oembed_add_provider( '#https?://[^.]+\.(wistia\.com|wi\.st)/(medias|embed)/.*#', 'https://fast.wistia.com/oembed', true );
1319
		wp_oembed_add_provider( '#https?://sketchfab\.com/.*#i', 'https://sketchfab.com/oembed', true );
1320
	}
1321
1322
	/**
1323
	 * Synchronize connected user role changes
1324
	 */
1325
	function user_role_change( $user_id ) {
1326
		_deprecated_function( __METHOD__, 'jetpack-4.2', 'Jetpack_Sync_Users::user_role_change()' );
1327
		Jetpack_Sync_Users::user_role_change( $user_id );
1328
	}
1329
1330
	/**
1331
	 * Loads the currently active modules.
1332
	 */
1333
	public static function load_modules() {
1334
		if ( ! self::is_active() && !self::is_development_mode() ) {
1335
			if ( ! is_multisite() || ! get_site_option( 'jetpack_protect_active' ) ) {
1336
				return;
1337
			}
1338
		}
1339
1340
		$version = Jetpack_Options::get_option( 'version' );
1341 View Code Duplication
		if ( ! $version ) {
1342
			$version = $old_version = JETPACK__VERSION . ':' . time();
1343
			/** This action is documented in class.jetpack.php */
1344
			do_action( 'updating_jetpack_version', $version, false );
1345
			Jetpack_Options::update_options( compact( 'version', 'old_version' ) );
1346
		}
1347
		list( $version ) = explode( ':', $version );
1348
1349
		$modules = array_filter( Jetpack::get_active_modules(), array( 'Jetpack', 'is_module' ) );
1350
1351
		$modules_data = array();
1352
1353
		// Don't load modules that have had "Major" changes since the stored version until they have been deactivated/reactivated through the lint check.
1354
		if ( version_compare( $version, JETPACK__VERSION, '<' ) ) {
1355
			$updated_modules = array();
1356
			foreach ( $modules as $module ) {
1357
				$modules_data[ $module ] = Jetpack::get_module( $module );
1358
				if ( ! isset( $modules_data[ $module ]['changed'] ) ) {
1359
					continue;
1360
				}
1361
1362
				if ( version_compare( $modules_data[ $module ]['changed'], $version, '<=' ) ) {
1363
					continue;
1364
				}
1365
1366
				$updated_modules[] = $module;
1367
			}
1368
1369
			$modules = array_diff( $modules, $updated_modules );
1370
		}
1371
1372
		$is_development_mode = Jetpack::is_development_mode();
1373
1374
		foreach ( $modules as $index => $module ) {
1375
			// If we're in dev mode, disable modules requiring a connection
1376
			if ( $is_development_mode ) {
1377
				// Prime the pump if we need to
1378
				if ( empty( $modules_data[ $module ] ) ) {
1379
					$modules_data[ $module ] = Jetpack::get_module( $module );
1380
				}
1381
				// If the module requires a connection, but we're in local mode, don't include it.
1382
				if ( $modules_data[ $module ]['requires_connection'] ) {
1383
					continue;
1384
				}
1385
			}
1386
1387
			if ( did_action( 'jetpack_module_loaded_' . $module ) ) {
1388
				continue;
1389
			}
1390
1391
			if ( ! @include( Jetpack::get_module_path( $module ) ) ) {
1392
				unset( $modules[ $index ] );
1393
				self::update_active_modules( array_values( $modules ) );
1394
				continue;
1395
			}
1396
1397
			/**
1398
			 * Fires when a specific module is loaded.
1399
			 * The dynamic part of the hook, $module, is the module slug.
1400
			 *
1401
			 * @since 1.1.0
1402
			 */
1403
			do_action( 'jetpack_module_loaded_' . $module );
1404
		}
1405
1406
		/**
1407
		 * Fires when all the modules are loaded.
1408
		 *
1409
		 * @since 1.1.0
1410
		 */
1411
		do_action( 'jetpack_modules_loaded' );
1412
1413
		// Load module-specific code that is needed even when a module isn't active. Loaded here because code contained therein may need actions such as setup_theme.
1414
		if ( Jetpack::is_active() || Jetpack::is_development_mode() )
1415
			require_once( JETPACK__PLUGIN_DIR . 'modules/module-extras.php' );
1416
	}
1417
1418
	/**
1419
	 * Check if Jetpack's REST API compat file should be included
1420
	 * @action plugins_loaded
1421
	 * @return null
1422
	 */
1423
	public function check_rest_api_compat() {
1424
		/**
1425
		 * Filters the list of REST API compat files to be included.
1426
		 *
1427
		 * @since 2.2.5
1428
		 *
1429
		 * @param array $args Array of REST API compat files to include.
1430
		 */
1431
		$_jetpack_rest_api_compat_includes = apply_filters( 'jetpack_rest_api_compat', array() );
1432
1433
		if ( function_exists( 'bbpress' ) )
1434
			$_jetpack_rest_api_compat_includes[] = JETPACK__PLUGIN_DIR . 'class.jetpack-bbpress-json-api-compat.php';
1435
1436
		foreach ( $_jetpack_rest_api_compat_includes as $_jetpack_rest_api_compat_include )
1437
			require_once $_jetpack_rest_api_compat_include;
1438
	}
1439
1440
	/**
1441
	 * Gets all plugins currently active in values, regardless of whether they're
1442
	 * traditionally activated or network activated.
1443
	 *
1444
	 * @todo Store the result in core's object cache maybe?
1445
	 */
1446
	public static function get_active_plugins() {
1447
		$active_plugins = (array) get_option( 'active_plugins', array() );
1448
1449
		if ( is_multisite() ) {
1450
			// Due to legacy code, active_sitewide_plugins stores them in the keys,
1451
			// whereas active_plugins stores them in the values.
1452
			$network_plugins = array_keys( get_site_option( 'active_sitewide_plugins', array() ) );
1453
			if ( $network_plugins ) {
1454
				$active_plugins = array_merge( $active_plugins, $network_plugins );
1455
			}
1456
		}
1457
1458
		sort( $active_plugins );
1459
1460
		return array_unique( $active_plugins );
1461
	}
1462
1463
	/**
1464
	 * Gets and parses additional plugin data to send with the heartbeat data
1465
	 *
1466
	 * @since 3.8.1
1467
	 *
1468
	 * @return array Array of plugin data
1469
	 */
1470
	public static function get_parsed_plugin_data() {
1471
		if ( ! function_exists( 'get_plugins' ) ) {
1472
			require_once( ABSPATH . 'wp-admin/includes/plugin.php' );
1473
		}
1474
		/** This filter is documented in wp-admin/includes/class-wp-plugins-list-table.php */
1475
		$all_plugins    = apply_filters( 'all_plugins', get_plugins() );
1476
		$active_plugins = Jetpack::get_active_plugins();
1477
1478
		$plugins = array();
1479
		foreach ( $all_plugins as $path => $plugin_data ) {
1480
			$plugins[ $path ] = array(
1481
					'is_active' => in_array( $path, $active_plugins ),
1482
					'file'      => $path,
1483
					'name'      => $plugin_data['Name'],
1484
					'version'   => $plugin_data['Version'],
1485
					'author'    => $plugin_data['Author'],
1486
			);
1487
		}
1488
1489
		return $plugins;
1490
	}
1491
1492
	/**
1493
	 * Gets and parses theme data to send with the heartbeat data
1494
	 *
1495
	 * @since 3.8.1
1496
	 *
1497
	 * @return array Array of theme data
1498
	 */
1499
	public static function get_parsed_theme_data() {
1500
		$all_themes = wp_get_themes( array( 'allowed' => true ) );
1501
		$header_keys = array( 'Name', 'Author', 'Version', 'ThemeURI', 'AuthorURI', 'Status', 'Tags' );
1502
1503
		$themes = array();
1504
		foreach ( $all_themes as $slug => $theme_data ) {
1505
			$theme_headers = array();
1506
			foreach ( $header_keys as $header_key ) {
1507
				$theme_headers[ $header_key ] = $theme_data->get( $header_key );
1508
			}
1509
1510
			$themes[ $slug ] = array(
1511
					'is_active_theme' => $slug == wp_get_theme()->get_template(),
1512
					'slug' => $slug,
1513
					'theme_root' => $theme_data->get_theme_root_uri(),
1514
					'parent' => $theme_data->parent(),
1515
					'headers' => $theme_headers
1516
			);
1517
		}
1518
1519
		return $themes;
1520
	}
1521
1522
	/**
1523
	 * Checks whether a specific plugin is active.
1524
	 *
1525
	 * We don't want to store these in a static variable, in case
1526
	 * there are switch_to_blog() calls involved.
1527
	 */
1528
	public static function is_plugin_active( $plugin = 'jetpack/jetpack.php' ) {
1529
		return in_array( $plugin, self::get_active_plugins() );
1530
	}
1531
1532
	/**
1533
	 * Check if Jetpack's Open Graph tags should be used.
1534
	 * If certain plugins are active, Jetpack's og tags are suppressed.
1535
	 *
1536
	 * @uses Jetpack::get_active_modules, add_filter, get_option, apply_filters
1537
	 * @action plugins_loaded
1538
	 * @return null
1539
	 */
1540
	public function check_open_graph() {
1541
		if ( in_array( 'publicize', Jetpack::get_active_modules() ) || in_array( 'sharedaddy', Jetpack::get_active_modules() ) ) {
1542
			add_filter( 'jetpack_enable_open_graph', '__return_true', 0 );
1543
		}
1544
1545
		$active_plugins = self::get_active_plugins();
1546
1547
		if ( ! empty( $active_plugins ) ) {
1548
			foreach ( $this->open_graph_conflicting_plugins as $plugin ) {
1549
				if ( in_array( $plugin, $active_plugins ) ) {
1550
					add_filter( 'jetpack_enable_open_graph', '__return_false', 99 );
1551
					break;
1552
				}
1553
			}
1554
		}
1555
1556
		/**
1557
		 * Allow the addition of Open Graph Meta Tags to all pages.
1558
		 *
1559
		 * @since 2.0.3
1560
		 *
1561
		 * @param bool false Should Open Graph Meta tags be added. Default to false.
1562
		 */
1563
		if ( apply_filters( 'jetpack_enable_open_graph', false ) ) {
1564
			require_once JETPACK__PLUGIN_DIR . 'functions.opengraph.php';
1565
		}
1566
	}
1567
1568
	/**
1569
	 * Check if Jetpack's Twitter tags should be used.
1570
	 * If certain plugins are active, Jetpack's twitter tags are suppressed.
1571
	 *
1572
	 * @uses Jetpack::get_active_modules, add_filter, get_option, apply_filters
1573
	 * @action plugins_loaded
1574
	 * @return null
1575
	 */
1576
	public function check_twitter_tags() {
1577
1578
		$active_plugins = self::get_active_plugins();
1579
1580
		if ( ! empty( $active_plugins ) ) {
1581
			foreach ( $this->twitter_cards_conflicting_plugins as $plugin ) {
1582
				if ( in_array( $plugin, $active_plugins ) ) {
1583
					add_filter( 'jetpack_disable_twitter_cards', '__return_true', 99 );
1584
					break;
1585
				}
1586
			}
1587
		}
1588
1589
		/**
1590
		 * Allow Twitter Card Meta tags to be disabled.
1591
		 *
1592
		 * @since 2.6.0
1593
		 *
1594
		 * @param bool true Should Twitter Card Meta tags be disabled. Default to true.
1595
		 */
1596
		if ( ! apply_filters( 'jetpack_disable_twitter_cards', false ) ) {
1597
			require_once JETPACK__PLUGIN_DIR . 'class.jetpack-twitter-cards.php';
1598
		}
1599
	}
1600
1601
	/**
1602
	 * Allows plugins to submit security reports.
1603
 	 *
1604
	 * @param string  $type         Report type (login_form, backup, file_scanning, spam)
1605
	 * @param string  $plugin_file  Plugin __FILE__, so that we can pull plugin data
1606
	 * @param array   $args         See definitions above
1607
	 */
1608
	public static function submit_security_report( $type = '', $plugin_file = '', $args = array() ) {
1609
		_deprecated_function( __FUNCTION__, 'jetpack-4.2', null );
1610
	}
1611
1612
/* Jetpack Options API */
1613
1614
	public static function get_option_names( $type = 'compact' ) {
1615
		return Jetpack_Options::get_option_names( $type );
1616
	}
1617
1618
	/**
1619
	 * Returns the requested option.  Looks in jetpack_options or jetpack_$name as appropriate.
1620
 	 *
1621
	 * @param string $name    Option name
1622
	 * @param mixed  $default (optional)
1623
	 */
1624
	public static function get_option( $name, $default = false ) {
1625
		return Jetpack_Options::get_option( $name, $default );
1626
	}
1627
1628
	/**
1629
	* Stores two secrets and a timestamp so WordPress.com can make a request back and verify an action
1630
	* Does some extra verification so urls (such as those to public-api, register, etc) can't just be crafted
1631
	* $name must be a registered option name.
1632
	*/
1633
	public static function create_nonce( $name ) {
1634
		$secret = wp_generate_password( 32, false ) . ':' . wp_generate_password( 32, false ) . ':' . ( time() + 600 );
1635
1636
		Jetpack_Options::update_option( $name, $secret );
1637
		@list( $secret_1, $secret_2, $eol ) = explode( ':', Jetpack_Options::get_option( $name ) );
1638
		if ( empty( $secret_1 ) || empty( $secret_2 ) || $eol < time() )
1639
			return new Jetpack_Error( 'missing_secrets' );
1640
1641
		return array(
1642
			'secret_1' => $secret_1,
1643
			'secret_2' => $secret_2,
1644
			'eol'      => $eol,
1645
		);
1646
	}
1647
1648
	/**
1649
	 * Updates the single given option.  Updates jetpack_options or jetpack_$name as appropriate.
1650
 	 *
1651
	 * @deprecated 3.4 use Jetpack_Options::update_option() instead.
1652
	 * @param string $name  Option name
1653
	 * @param mixed  $value Option value
1654
	 */
1655
	public static function update_option( $name, $value ) {
1656
		_deprecated_function( __METHOD__, 'jetpack-3.4', 'Jetpack_Options::update_option()' );
1657
		return Jetpack_Options::update_option( $name, $value );
1658
	}
1659
1660
	/**
1661
	 * Updates the multiple given options.  Updates jetpack_options and/or jetpack_$name as appropriate.
1662
 	 *
1663
	 * @deprecated 3.4 use Jetpack_Options::update_options() instead.
1664
	 * @param array $array array( option name => option value, ... )
1665
	 */
1666
	public static function update_options( $array ) {
1667
		_deprecated_function( __METHOD__, 'jetpack-3.4', 'Jetpack_Options::update_options()' );
1668
		return Jetpack_Options::update_options( $array );
1669
	}
1670
1671
	/**
1672
	 * Deletes the given option.  May be passed multiple option names as an array.
1673
	 * Updates jetpack_options and/or deletes jetpack_$name as appropriate.
1674
	 *
1675
	 * @deprecated 3.4 use Jetpack_Options::delete_option() instead.
1676
	 * @param string|array $names
1677
	 */
1678
	public static function delete_option( $names ) {
1679
		_deprecated_function( __METHOD__, 'jetpack-3.4', 'Jetpack_Options::delete_option()' );
1680
		return Jetpack_Options::delete_option( $names );
1681
	}
1682
1683
	/**
1684
	 * Enters a user token into the user_tokens option
1685
	 *
1686
	 * @param int $user_id
1687
	 * @param string $token
1688
	 * return bool
1689
	 */
1690
	public static function update_user_token( $user_id, $token, $is_master_user ) {
1691
		// not designed for concurrent updates
1692
		$user_tokens = Jetpack_Options::get_option( 'user_tokens' );
1693
		if ( ! is_array( $user_tokens ) )
1694
			$user_tokens = array();
1695
		$user_tokens[$user_id] = $token;
1696
		if ( $is_master_user ) {
1697
			$master_user = $user_id;
1698
			$options     = compact( 'user_tokens', 'master_user' );
1699
		} else {
1700
			$options = compact( 'user_tokens' );
1701
		}
1702
		return Jetpack_Options::update_options( $options );
1703
	}
1704
1705
	/**
1706
	 * Returns an array of all PHP files in the specified absolute path.
1707
	 * Equivalent to glob( "$absolute_path/*.php" ).
1708
	 *
1709
	 * @param string $absolute_path The absolute path of the directory to search.
1710
	 * @return array Array of absolute paths to the PHP files.
1711
	 */
1712
	public static function glob_php( $absolute_path ) {
1713
		if ( function_exists( 'glob' ) ) {
1714
			return glob( "$absolute_path/*.php" );
1715
		}
1716
1717
		$absolute_path = untrailingslashit( $absolute_path );
1718
		$files = array();
1719
		if ( ! $dir = @opendir( $absolute_path ) ) {
1720
			return $files;
1721
		}
1722
1723
		while ( false !== $file = readdir( $dir ) ) {
1724
			if ( '.' == substr( $file, 0, 1 ) || '.php' != substr( $file, -4 ) ) {
1725
				continue;
1726
			}
1727
1728
			$file = "$absolute_path/$file";
1729
1730
			if ( ! is_file( $file ) ) {
1731
				continue;
1732
			}
1733
1734
			$files[] = $file;
1735
		}
1736
1737
		closedir( $dir );
1738
1739
		return $files;
1740
	}
1741
1742
	public static function activate_new_modules( $redirect = false ) {
1743
		if ( ! Jetpack::is_active() && ! Jetpack::is_development_mode() ) {
1744
			return;
1745
		}
1746
1747
		$jetpack_old_version = Jetpack_Options::get_option( 'version' ); // [sic]
1748 View Code Duplication
		if ( ! $jetpack_old_version ) {
1749
			$jetpack_old_version = $version = $old_version = '1.1:' . time();
1750
			/** This action is documented in class.jetpack.php */
1751
			do_action( 'updating_jetpack_version', $version, false );
1752
			Jetpack_Options::update_options( compact( 'version', 'old_version' ) );
1753
		}
1754
1755
		list( $jetpack_version ) = explode( ':', $jetpack_old_version ); // [sic]
1756
1757
		if ( version_compare( JETPACK__VERSION, $jetpack_version, '<=' ) ) {
1758
			return;
1759
		}
1760
1761
		$active_modules     = Jetpack::get_active_modules();
1762
		$reactivate_modules = array();
1763
		foreach ( $active_modules as $active_module ) {
1764
			$module = Jetpack::get_module( $active_module );
1765
			if ( ! isset( $module['changed'] ) ) {
1766
				continue;
1767
			}
1768
1769
			if ( version_compare( $module['changed'], $jetpack_version, '<=' ) ) {
1770
				continue;
1771
			}
1772
1773
			$reactivate_modules[] = $active_module;
1774
			Jetpack::deactivate_module( $active_module );
1775
		}
1776
1777
		$new_version = JETPACK__VERSION . ':' . time();
1778
		/** This action is documented in class.jetpack.php */
1779
		do_action( 'updating_jetpack_version', $new_version, $jetpack_old_version );
1780
		Jetpack_Options::update_options(
1781
			array(
1782
				'version'     => $new_version,
1783
				'old_version' => $jetpack_old_version,
1784
			)
1785
		);
1786
1787
		Jetpack::state( 'message', 'modules_activated' );
1788
		Jetpack::activate_default_modules( $jetpack_version, JETPACK__VERSION, $reactivate_modules );
1789
1790
		if ( $redirect ) {
1791
			$page = 'jetpack'; // make sure we redirect to either settings or the jetpack page
1792
			if ( isset( $_GET['page'] ) && in_array( $_GET['page'], array( 'jetpack', 'jetpack_modules' ) ) ) {
1793
				$page = $_GET['page'];
1794
			}
1795
1796
			wp_safe_redirect( Jetpack::admin_url( 'page=' . $page ) );
1797
			exit;
1798
		}
1799
	}
1800
1801
	/**
1802
	 * List available Jetpack modules. Simply lists .php files in /modules/.
1803
	 * Make sure to tuck away module "library" files in a sub-directory.
1804
	 */
1805
	public static function get_available_modules( $min_version = false, $max_version = false ) {
1806
		static $modules = null;
1807
1808
		if ( ! isset( $modules ) ) {
1809
			$available_modules_option = Jetpack_Options::get_option( 'available_modules', array() );
1810
			// Use the cache if we're on the front-end and it's available...
1811
			if ( ! is_admin() && ! empty( $available_modules_option[ JETPACK__VERSION ] ) ) {
1812
				$modules = $available_modules_option[ JETPACK__VERSION ];
1813
			} else {
1814
				$files = Jetpack::glob_php( JETPACK__PLUGIN_DIR . 'modules' );
1815
1816
				$modules = array();
1817
1818
				foreach ( $files as $file ) {
1819
					if ( ! $headers = Jetpack::get_module( $file ) ) {
1820
						continue;
1821
					}
1822
1823
					$modules[ Jetpack::get_module_slug( $file ) ] = $headers['introduced'];
1824
				}
1825
1826
				Jetpack_Options::update_option( 'available_modules', array(
1827
					JETPACK__VERSION => $modules,
1828
				) );
1829
			}
1830
		}
1831
1832
		/**
1833
		 * Filters the array of modules available to be activated.
1834
		 *
1835
		 * @since 2.4.0
1836
		 *
1837
		 * @param array $modules Array of available modules.
1838
		 * @param string $min_version Minimum version number required to use modules.
1839
		 * @param string $max_version Maximum version number required to use modules.
1840
		 */
1841
		$mods = apply_filters( 'jetpack_get_available_modules', $modules, $min_version, $max_version );
1842
1843
		if ( ! $min_version && ! $max_version ) {
1844
			return array_keys( $mods );
1845
		}
1846
1847
		$r = array();
1848
		foreach ( $mods as $slug => $introduced ) {
1849
			if ( $min_version && version_compare( $min_version, $introduced, '>=' ) ) {
1850
				continue;
1851
			}
1852
1853
			if ( $max_version && version_compare( $max_version, $introduced, '<' ) ) {
1854
				continue;
1855
			}
1856
1857
			$r[] = $slug;
1858
		}
1859
1860
		return $r;
1861
	}
1862
1863
	/**
1864
	 * Default modules loaded on activation.
1865
	 */
1866
	public static function get_default_modules( $min_version = false, $max_version = false ) {
1867
		$return = array();
1868
1869
		foreach ( Jetpack::get_available_modules( $min_version, $max_version ) as $module ) {
1870
			$module_data = Jetpack::get_module( $module );
1871
1872
			switch ( strtolower( $module_data['auto_activate'] ) ) {
1873
				case 'yes' :
1874
					$return[] = $module;
1875
					break;
1876
				case 'public' :
1877
					if ( Jetpack_Options::get_option( 'public' ) ) {
1878
						$return[] = $module;
1879
					}
1880
					break;
1881
				case 'no' :
1882
				default :
1883
					break;
1884
			}
1885
		}
1886
		/**
1887
		 * Filters the array of default modules.
1888
		 *
1889
		 * @since 2.5.0
1890
		 *
1891
		 * @param array $return Array of default modules.
1892
		 * @param string $min_version Minimum version number required to use modules.
1893
		 * @param string $max_version Maximum version number required to use modules.
1894
		 */
1895
		return apply_filters( 'jetpack_get_default_modules', $return, $min_version, $max_version );
1896
	}
1897
1898
	/**
1899
	 * Checks activated modules during auto-activation to determine
1900
	 * if any of those modules are being deprecated.  If so, close
1901
	 * them out, and add any replacement modules.
1902
	 *
1903
	 * Runs at priority 99 by default.
1904
	 *
1905
	 * This is run late, so that it can still activate a module if
1906
	 * the new module is a replacement for another that the user
1907
	 * currently has active, even if something at the normal priority
1908
	 * would kibosh everything.
1909
	 *
1910
	 * @since 2.6
1911
	 * @uses jetpack_get_default_modules filter
1912
	 * @param array $modules
1913
	 * @return array
1914
	 */
1915
	function handle_deprecated_modules( $modules ) {
1916
		$deprecated_modules = array(
1917
			'debug'            => null,  // Closed out and moved to ./class.jetpack-debugger.php
1918
			'wpcc'             => 'sso', // Closed out in 2.6 -- SSO provides the same functionality.
1919
			'gplus-authorship' => null,  // Closed out in 3.2 -- Google dropped support.
1920
		);
1921
1922
		// Don't activate SSO if they never completed activating WPCC.
1923
		if ( Jetpack::is_module_active( 'wpcc' ) ) {
1924
			$wpcc_options = Jetpack_Options::get_option( 'wpcc_options' );
1925
			if ( empty( $wpcc_options ) || empty( $wpcc_options['client_id'] ) || empty( $wpcc_options['client_id'] ) ) {
1926
				$deprecated_modules['wpcc'] = null;
1927
			}
1928
		}
1929
1930
		foreach ( $deprecated_modules as $module => $replacement ) {
1931
			if ( Jetpack::is_module_active( $module ) ) {
1932
				self::deactivate_module( $module );
1933
				if ( $replacement ) {
1934
					$modules[] = $replacement;
1935
				}
1936
			}
1937
		}
1938
1939
		return array_unique( $modules );
1940
	}
1941
1942
	/**
1943
	 * Checks activated plugins during auto-activation to determine
1944
	 * if any of those plugins are in the list with a corresponding module
1945
	 * that is not compatible with the plugin. The module will not be allowed
1946
	 * to auto-activate.
1947
	 *
1948
	 * @since 2.6
1949
	 * @uses jetpack_get_default_modules filter
1950
	 * @param array $modules
1951
	 * @return array
1952
	 */
1953
	function filter_default_modules( $modules ) {
1954
1955
		$active_plugins = self::get_active_plugins();
1956
1957
		if ( ! empty( $active_plugins ) ) {
1958
1959
			// For each module we'd like to auto-activate...
1960
			foreach ( $modules as $key => $module ) {
1961
				// If there are potential conflicts for it...
1962
				if ( ! empty( $this->conflicting_plugins[ $module ] ) ) {
1963
					// For each potential conflict...
1964
					foreach ( $this->conflicting_plugins[ $module ] as $title => $plugin ) {
1965
						// If that conflicting plugin is active...
1966
						if ( in_array( $plugin, $active_plugins ) ) {
1967
							// Remove that item from being auto-activated.
1968
							unset( $modules[ $key ] );
1969
						}
1970
					}
1971
				}
1972
			}
1973
		}
1974
1975
		return $modules;
1976
	}
1977
1978
	/**
1979
	 * Extract a module's slug from its full path.
1980
	 */
1981
	public static function get_module_slug( $file ) {
1982
		return str_replace( '.php', '', basename( $file ) );
1983
	}
1984
1985
	/**
1986
	 * Generate a module's path from its slug.
1987
	 */
1988
	public static function get_module_path( $slug ) {
1989
		return JETPACK__PLUGIN_DIR . "modules/$slug.php";
1990
	}
1991
1992
	/**
1993
	 * Load module data from module file. Headers differ from WordPress
1994
	 * plugin headers to avoid them being identified as standalone
1995
	 * plugins on the WordPress plugins page.
1996
	 */
1997
	public static function get_module( $module ) {
1998
		$headers = array(
1999
			'name'                      => 'Module Name',
2000
			'description'               => 'Module Description',
2001
			'jumpstart_desc'            => 'Jumpstart Description',
2002
			'sort'                      => 'Sort Order',
2003
			'recommendation_order'      => 'Recommendation Order',
2004
			'introduced'                => 'First Introduced',
2005
			'changed'                   => 'Major Changes In',
2006
			'deactivate'                => 'Deactivate',
2007
			'free'                      => 'Free',
2008
			'requires_connection'       => 'Requires Connection',
2009
			'auto_activate'             => 'Auto Activate',
2010
			'module_tags'               => 'Module Tags',
2011
			'feature'                   => 'Feature',
2012
			'additional_search_queries' => 'Additional Search Queries',
2013
		);
2014
2015
		$file = Jetpack::get_module_path( Jetpack::get_module_slug( $module ) );
2016
2017
		$mod = Jetpack::get_file_data( $file, $headers );
2018
		if ( empty( $mod['name'] ) ) {
2019
			return false;
2020
		}
2021
2022
		$mod['sort']                    = empty( $mod['sort'] ) ? 10 : (int) $mod['sort'];
2023
		$mod['recommendation_order']    = empty( $mod['recommendation_order'] ) ? 20 : (int) $mod['recommendation_order'];
2024
		$mod['deactivate']              = empty( $mod['deactivate'] );
2025
		$mod['free']                    = empty( $mod['free'] );
2026
		$mod['requires_connection']     = ( ! empty( $mod['requires_connection'] ) && 'No' == $mod['requires_connection'] ) ? false : true;
2027
2028
		if ( empty( $mod['auto_activate'] ) || ! in_array( strtolower( $mod['auto_activate'] ), array( 'yes', 'no', 'public' ) ) ) {
2029
			$mod['auto_activate'] = 'No';
2030
		} else {
2031
			$mod['auto_activate'] = (string) $mod['auto_activate'];
2032
		}
2033
2034
		if ( $mod['module_tags'] ) {
2035
			$mod['module_tags'] = explode( ',', $mod['module_tags'] );
2036
			$mod['module_tags'] = array_map( 'trim', $mod['module_tags'] );
2037
			$mod['module_tags'] = array_map( array( __CLASS__, 'translate_module_tag' ), $mod['module_tags'] );
2038
		} else {
2039
			$mod['module_tags'] = array( self::translate_module_tag( 'Other' ) );
2040
		}
2041
2042
		if ( $mod['feature'] ) {
2043
			$mod['feature'] = explode( ',', $mod['feature'] );
2044
			$mod['feature'] = array_map( 'trim', $mod['feature'] );
2045
		} else {
2046
			$mod['feature'] = array( self::translate_module_tag( 'Other' ) );
2047
		}
2048
2049
		/**
2050
		 * Filters the feature array on a module.
2051
		 *
2052
		 * This filter allows you to control where each module is filtered: Recommended,
2053
		 * Jumpstart, and the default "Other" listing.
2054
		 *
2055
		 * @since 3.5.0
2056
		 *
2057
		 * @param array   $mod['feature'] The areas to feature this module:
2058
		 *     'Jumpstart' adds to the "Jumpstart" option to activate many modules at once.
2059
		 *     'Recommended' shows on the main Jetpack admin screen.
2060
		 *     'Other' should be the default if no other value is in the array.
2061
		 * @param string  $module The slug of the module, e.g. sharedaddy.
2062
		 * @param array   $mod All the currently assembled module data.
2063
		 */
2064
		$mod['feature'] = apply_filters( 'jetpack_module_feature', $mod['feature'], $module, $mod );
2065
2066
		/**
2067
		 * Filter the returned data about a module.
2068
		 *
2069
		 * This filter allows overriding any info about Jetpack modules. It is dangerous,
2070
		 * so please be careful.
2071
		 *
2072
		 * @since 3.6.0
2073
		 *
2074
		 * @param array   $mod    The details of the requested module.
2075
		 * @param string  $module The slug of the module, e.g. sharedaddy
2076
		 * @param string  $file   The path to the module source file.
2077
		 */
2078
		return apply_filters( 'jetpack_get_module', $mod, $module, $file );
2079
	}
2080
2081
	/**
2082
	 * Like core's get_file_data implementation, but caches the result.
2083
	 */
2084
	public static function get_file_data( $file, $headers ) {
2085
		//Get just the filename from $file (i.e. exclude full path) so that a consistent hash is generated
2086
		$file_name = basename( $file );
2087
		$file_data_option = Jetpack_Options::get_option( 'file_data', array() );
2088
		$key              = md5( $file_name . serialize( $headers ) );
2089
		$refresh_cache    = is_admin() && isset( $_GET['page'] ) && 'jetpack' === substr( $_GET['page'], 0, 7 );
2090
2091
		// If we don't need to refresh the cache, and already have the value, short-circuit!
2092
		if ( ! $refresh_cache && isset( $file_data_option[ JETPACK__VERSION ][ $key ] ) ) {
2093
			return $file_data_option[ JETPACK__VERSION ][ $key ];
2094
		}
2095
2096
		$data = get_file_data( $file, $headers );
2097
2098
		// Strip out any old Jetpack versions that are cluttering the option.
2099
		$file_data_option = array_intersect_key( (array) $file_data_option, array( JETPACK__VERSION => null ) );
2100
		$file_data_option[ JETPACK__VERSION ][ $key ] = $data;
2101
		Jetpack_Options::update_option( 'file_data', $file_data_option );
2102
2103
		return $data;
2104
	}
2105
2106
	/**
2107
	 * Return translated module tag.
2108
	 *
2109
	 * @param string $tag Tag as it appears in each module heading.
2110
	 *
2111
	 * @return mixed
2112
	 */
2113
	public static function translate_module_tag( $tag ) {
2114
		return jetpack_get_module_i18n_tag( $tag );
2115
	}
2116
2117
	/**
2118
	 * Return module name translation. Uses matching string created in modules/module-headings.php.
2119
	 *
2120
	 * @since 3.9.2
2121
	 *
2122
	 * @param array $modules
2123
	 *
2124
	 * @return string|void
2125
	 */
2126
	public static function get_translated_modules( $modules ) {
2127
		foreach ( $modules as $index => $module ) {
2128
			$i18n_module = jetpack_get_module_i18n( $module['module'] );
2129
			if ( isset( $module['name'] ) ) {
2130
				$modules[ $index ]['name'] = $i18n_module['name'];
2131
			}
2132
			if ( isset( $module['description'] ) ) {
2133
				$modules[ $index ]['description'] = $i18n_module['description'];
2134
				$modules[ $index ]['short_description'] = $i18n_module['description'];
2135
			}
2136
		}
2137
		return $modules;
2138
	}
2139
2140
	/**
2141
	 * Get a list of activated modules as an array of module slugs.
2142
	 */
2143
	public static function get_active_modules() {
2144
		$active = Jetpack_Options::get_option( 'active_modules' );
2145
		if ( ! is_array( $active ) )
2146
			$active = array();
2147
		if ( class_exists( 'VaultPress' ) || function_exists( 'vaultpress_contact_service' ) ) {
2148
			$active[] = 'vaultpress';
2149
		} else {
2150
			$active = array_diff( $active, array( 'vaultpress' ) );
2151
		}
2152
2153
		//If protect is active on the main site of a multisite, it should be active on all sites.
2154
		if ( ! in_array( 'protect', $active ) && is_multisite() && get_site_option( 'jetpack_protect_active' ) ) {
2155
			$active[] = 'protect';
2156
		}
2157
2158
		return array_unique( $active );
2159
	}
2160
2161
	/**
2162
	 * Check whether or not a Jetpack module is active.
2163
	 *
2164
	 * @param string $module The slug of a Jetpack module.
2165
	 * @return bool
2166
	 *
2167
	 * @static
2168
	 */
2169
	public static function is_module_active( $module ) {
2170
		return in_array( $module, self::get_active_modules() );
2171
	}
2172
2173
	public static function is_module( $module ) {
2174
		return ! empty( $module ) && ! validate_file( $module, Jetpack::get_available_modules() );
2175
	}
2176
2177
	/**
2178
	 * Catches PHP errors.  Must be used in conjunction with output buffering.
2179
	 *
2180
	 * @param bool $catch True to start catching, False to stop.
2181
	 *
2182
	 * @static
2183
	 */
2184
	public static function catch_errors( $catch ) {
2185
		static $display_errors, $error_reporting;
2186
2187
		if ( $catch ) {
2188
			$display_errors  = @ini_set( 'display_errors', 1 );
2189
			$error_reporting = @error_reporting( E_ALL );
2190
			add_action( 'shutdown', array( 'Jetpack', 'catch_errors_on_shutdown' ), 0 );
2191
		} else {
2192
			@ini_set( 'display_errors', $display_errors );
2193
			@error_reporting( $error_reporting );
2194
			remove_action( 'shutdown', array( 'Jetpack', 'catch_errors_on_shutdown' ), 0 );
2195
		}
2196
	}
2197
2198
	/**
2199
	 * Saves any generated PHP errors in ::state( 'php_errors', {errors} )
2200
	 */
2201
	public static function catch_errors_on_shutdown() {
2202
		Jetpack::state( 'php_errors', ob_get_clean() );
2203
	}
2204
2205
	public static function activate_default_modules( $min_version = false, $max_version = false, $other_modules = array(), $redirect = true ) {
2206
		$jetpack = Jetpack::init();
2207
2208
		$modules = Jetpack::get_default_modules( $min_version, $max_version );
2209
		$modules = array_merge( $other_modules, $modules );
2210
2211
		// Look for standalone plugins and disable if active.
2212
2213
		$to_deactivate = array();
2214
		foreach ( $modules as $module ) {
2215
			if ( isset( $jetpack->plugins_to_deactivate[$module] ) ) {
2216
				$to_deactivate[$module] = $jetpack->plugins_to_deactivate[$module];
2217
			}
2218
		}
2219
2220
		$deactivated = array();
2221
		foreach ( $to_deactivate as $module => $deactivate_me ) {
2222
			list( $probable_file, $probable_title ) = $deactivate_me;
2223
			if ( Jetpack_Client_Server::deactivate_plugin( $probable_file, $probable_title ) ) {
2224
				$deactivated[] = $module;
2225
			}
2226
		}
2227
2228
		if ( $deactivated && $redirect ) {
2229
			Jetpack::state( 'deactivated_plugins', join( ',', $deactivated ) );
2230
2231
			$url = add_query_arg(
2232
				array(
2233
					'action'   => 'activate_default_modules',
2234
					'_wpnonce' => wp_create_nonce( 'activate_default_modules' ),
2235
				),
2236
				add_query_arg( compact( 'min_version', 'max_version', 'other_modules' ), Jetpack::admin_url( 'page=jetpack' ) )
2237
			);
2238
			wp_safe_redirect( $url );
2239
			exit;
2240
		}
2241
2242
		/**
2243
		 * Fires before default modules are activated.
2244
		 *
2245
		 * @since 1.9.0
2246
		 *
2247
		 * @param string $min_version Minimum version number required to use modules.
2248
		 * @param string $max_version Maximum version number required to use modules.
2249
		 * @param array $other_modules Array of other modules to activate alongside the default modules.
2250
		 */
2251
		do_action( 'jetpack_before_activate_default_modules', $min_version, $max_version, $other_modules );
2252
2253
		// Check each module for fatal errors, a la wp-admin/plugins.php::activate before activating
2254
		Jetpack::restate();
2255
		Jetpack::catch_errors( true );
2256
2257
		$active = Jetpack::get_active_modules();
2258
2259
		foreach ( $modules as $module ) {
2260
			if ( did_action( "jetpack_module_loaded_$module" ) ) {
2261
				$active[] = $module;
2262
				self::update_active_modules( $active );
2263
				continue;
2264
			}
2265
2266
			if ( in_array( $module, $active ) ) {
2267
				$module_info = Jetpack::get_module( $module );
2268
				if ( ! $module_info['deactivate'] ) {
2269
					$state = in_array( $module, $other_modules ) ? 'reactivated_modules' : 'activated_modules';
2270 View Code Duplication
					if ( $active_state = Jetpack::state( $state ) ) {
2271
						$active_state = explode( ',', $active_state );
2272
					} else {
2273
						$active_state = array();
2274
					}
2275
					$active_state[] = $module;
2276
					Jetpack::state( $state, implode( ',', $active_state ) );
2277
				}
2278
				continue;
2279
			}
2280
2281
			$file = Jetpack::get_module_path( $module );
2282
			if ( ! file_exists( $file ) ) {
2283
				continue;
2284
			}
2285
2286
			// we'll override this later if the plugin can be included without fatal error
2287
			if ( $redirect ) {
2288
				wp_safe_redirect( Jetpack::admin_url( 'page=jetpack' ) );
2289
			}
2290
			Jetpack::state( 'error', 'module_activation_failed' );
2291
			Jetpack::state( 'module', $module );
2292
			ob_start();
2293
			require $file;
2294
2295
			$active[] = $module;
2296
			$state    = in_array( $module, $other_modules ) ? 'reactivated_modules' : 'activated_modules';
2297 View Code Duplication
			if ( $active_state = Jetpack::state( $state ) ) {
2298
				$active_state = explode( ',', $active_state );
2299
			} else {
2300
				$active_state = array();
2301
			}
2302
			$active_state[] = $module;
2303
			Jetpack::state( $state, implode( ',', $active_state ) );
2304
			Jetpack::update_active_modules( $active );
2305
2306
			ob_end_clean();
2307
		}
2308
		Jetpack::state( 'error', false );
2309
		Jetpack::state( 'module', false );
2310
		Jetpack::catch_errors( false );
2311
		/**
2312
		 * Fires when default modules are activated.
2313
		 *
2314
		 * @since 1.9.0
2315
		 *
2316
		 * @param string $min_version Minimum version number required to use modules.
2317
		 * @param string $max_version Maximum version number required to use modules.
2318
		 * @param array $other_modules Array of other modules to activate alongside the default modules.
2319
		 */
2320
		do_action( 'jetpack_activate_default_modules', $min_version, $max_version, $other_modules );
2321
	}
2322
2323
	public static function activate_module( $module, $exit = true, $redirect = true ) {
2324
		/**
2325
		 * Fires before a module is activated.
2326
		 *
2327
		 * @since 2.6.0
2328
		 *
2329
		 * @param string $module Module slug.
2330
		 * @param bool $exit Should we exit after the module has been activated. Default to true.
2331
		 * @param bool $redirect Should the user be redirected after module activation? Default to true.
2332
		 */
2333
		do_action( 'jetpack_pre_activate_module', $module, $exit, $redirect );
2334
2335
		$jetpack = Jetpack::init();
2336
2337
		if ( ! strlen( $module ) )
2338
			return false;
2339
2340
		if ( ! Jetpack::is_module( $module ) )
2341
			return false;
2342
2343
		// If it's already active, then don't do it again
2344
		$active = Jetpack::get_active_modules();
2345
		foreach ( $active as $act ) {
2346
			if ( $act == $module )
2347
				return true;
2348
		}
2349
2350
		$module_data = Jetpack::get_module( $module );
2351
2352
		if ( ! Jetpack::is_active() ) {
2353
			if ( !Jetpack::is_development_mode() )
2354
				return false;
2355
2356
			// If we're not connected but in development mode, make sure the module doesn't require a connection
2357
			if ( Jetpack::is_development_mode() && $module_data['requires_connection'] )
2358
				return false;
2359
		}
2360
2361
		// Check and see if the old plugin is active
2362
		if ( isset( $jetpack->plugins_to_deactivate[ $module ] ) ) {
2363
			// Deactivate the old plugin
2364
			if ( Jetpack_Client_Server::deactivate_plugin( $jetpack->plugins_to_deactivate[ $module ][0], $jetpack->plugins_to_deactivate[ $module ][1] ) ) {
2365
				// If we deactivated the old plugin, remembere that with ::state() and redirect back to this page to activate the module
2366
				// We can't activate the module on this page load since the newly deactivated old plugin is still loaded on this page load.
2367
				Jetpack::state( 'deactivated_plugins', $module );
2368
				wp_safe_redirect( add_query_arg( 'jetpack_restate', 1 ) );
2369
				exit;
2370
			}
2371
		}
2372
2373
		// Check the file for fatal errors, a la wp-admin/plugins.php::activate
2374
		Jetpack::state( 'module', $module );
2375
		Jetpack::state( 'error', 'module_activation_failed' ); // we'll override this later if the plugin can be included without fatal error
2376
2377
		Jetpack::catch_errors( true );
2378
		ob_start();
2379
		require Jetpack::get_module_path( $module );
2380
		/** This action is documented in class.jetpack.php */
2381
		do_action( 'jetpack_activate_module', $module );
2382
		$active[] = $module;
2383
		Jetpack::update_active_modules( $active );
2384
2385
		Jetpack::state( 'error', false ); // the override
2386
		ob_end_clean();
2387
		Jetpack::catch_errors( false );
2388
2389
		// A flag for Jump Start so it's not shown again. Only set if it hasn't been yet.
2390 View Code Duplication
		if ( 'new_connection' === Jetpack_Options::get_option( 'jumpstart' ) ) {
2391
			Jetpack_Options::update_option( 'jumpstart', 'jetpack_action_taken' );
2392
2393
			//Jump start is being dismissed send data to MC Stats
2394
			$jetpack->stat( 'jumpstart', 'manual,'.$module );
2395
2396
			$jetpack->do_stats( 'server_side' );
2397
		}
2398
2399
		if ( $redirect ) {
2400
			wp_safe_redirect( Jetpack::admin_url( 'page=jetpack' ) );
2401
		}
2402
		if ( $exit ) {
2403
			exit;
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Coding Style Compatibility introduced by
The method activate_module() contains an exit expression.

An exit expression should only be used in rare cases. For example, if you write a short command line script.

In most cases however, using an exit expression makes the code untestable and often causes incompatibilities with other libraries. Thus, unless you are absolutely sure it is required here, we recommend to refactor your code to avoid its usage.

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2404
		}
2405
		return true;
2406
	}
2407
2408
	function activate_module_actions( $module ) {
2409
		_deprecated_function( __METHOD__, 'jeptack-4.2' );
2410
	}
2411
2412
	public static function deactivate_module( $module ) {
2413
		/**
2414
		 * Fires when a module is deactivated.
2415
		 *
2416
		 * @since 1.9.0
2417
		 *
2418
		 * @param string $module Module slug.
2419
		 */
2420
		do_action( 'jetpack_pre_deactivate_module', $module );
2421
2422
		$jetpack = Jetpack::init();
2423
2424
		$active = Jetpack::get_active_modules();
2425
		$new    = array_filter( array_diff( $active, (array) $module ) );
2426
2427
		// A flag for Jump Start so it's not shown again.
2428 View Code Duplication
		if ( 'new_connection' === Jetpack_Options::get_option( 'jumpstart' ) ) {
2429
			Jetpack_Options::update_option( 'jumpstart', 'jetpack_action_taken' );
2430
2431
			//Jump start is being dismissed send data to MC Stats
2432
			$jetpack->stat( 'jumpstart', 'manual,deactivated-'.$module );
2433
2434
			$jetpack->do_stats( 'server_side' );
2435
		}
2436
2437
		return self::update_active_modules( $new );
2438
	}
2439
2440
	public static function enable_module_configurable( $module ) {
2441
		$module = Jetpack::get_module_slug( $module );
2442
		add_filter( 'jetpack_module_configurable_' . $module, '__return_true' );
2443
	}
2444
2445
	public static function module_configuration_url( $module ) {
2446
		$module = Jetpack::get_module_slug( $module );
2447
		return Jetpack::admin_url( array( 'page' => 'jetpack', 'configure' => $module ) );
2448
	}
2449
2450
	public static function module_configuration_load( $module, $method ) {
2451
		$module = Jetpack::get_module_slug( $module );
2452
		add_action( 'jetpack_module_configuration_load_' . $module, $method );
2453
	}
2454
2455
	public static function module_configuration_head( $module, $method ) {
2456
		$module = Jetpack::get_module_slug( $module );
2457
		add_action( 'jetpack_module_configuration_head_' . $module, $method );
2458
	}
2459
2460
	public static function module_configuration_screen( $module, $method ) {
2461
		$module = Jetpack::get_module_slug( $module );
2462
		add_action( 'jetpack_module_configuration_screen_' . $module, $method );
2463
	}
2464
2465
	public static function module_configuration_activation_screen( $module, $method ) {
2466
		$module = Jetpack::get_module_slug( $module );
2467
		add_action( 'display_activate_module_setting_' . $module, $method );
2468
	}
2469
2470
/* Installation */
2471
2472
	public static function bail_on_activation( $message, $deactivate = true ) {
2473
?>
2474
<!doctype html>
2475
<html>
2476
<head>
2477
<meta charset="<?php bloginfo( 'charset' ); ?>">
2478
<style>
2479
* {
2480
	text-align: center;
2481
	margin: 0;
2482
	padding: 0;
2483
	font-family: "Lucida Grande",Verdana,Arial,"Bitstream Vera Sans",sans-serif;
2484
}
2485
p {
2486
	margin-top: 1em;
2487
	font-size: 18px;
2488
}
2489
</style>
2490
<body>
2491
<p><?php echo esc_html( $message ); ?></p>
2492
</body>
2493
</html>
2494
<?php
2495
		if ( $deactivate ) {
2496
			$plugins = get_option( 'active_plugins' );
2497
			$jetpack = plugin_basename( JETPACK__PLUGIN_DIR . 'jetpack.php' );
2498
			$update  = false;
2499
			foreach ( $plugins as $i => $plugin ) {
2500
				if ( $plugin === $jetpack ) {
2501
					$plugins[$i] = false;
2502
					$update = true;
2503
				}
2504
			}
2505
2506
			if ( $update ) {
2507
				update_option( 'active_plugins', array_filter( $plugins ) );
2508
			}
2509
		}
2510
		exit;
2511
	}
2512
2513
	/**
2514
	 * Attached to activate_{ plugin_basename( __FILES__ ) } by register_activation_hook()
2515
	 * @static
2516
	 */
2517
	public static function plugin_activation( $network_wide ) {
2518
		Jetpack_Options::update_option( 'activated', 1 );
2519
2520
		if ( version_compare( $GLOBALS['wp_version'], JETPACK__MINIMUM_WP_VERSION, '<' ) ) {
2521
			Jetpack::bail_on_activation( sprintf( __( 'Jetpack requires WordPress version %s or later.', 'jetpack' ), JETPACK__MINIMUM_WP_VERSION ) );
2522
		}
2523
2524
		if ( $network_wide )
2525
			Jetpack::state( 'network_nag', true );
2526
2527
		Jetpack::plugin_initialize();
2528
	}
2529
	/**
2530
	 * Runs before bumping version numbers up to a new version
2531
	 * @param  (string) $version    Version:timestamp
2532
	 * @param  (string) $old_version Old Version:timestamp or false if not set yet.
2533
	 * @return null              [description]
2534
	 */
2535
	public static function do_version_bump( $version, $old_version ) {
2536
2537
		if ( ! $old_version ) { // For new sites
2538
			// Setting up jetpack manage
2539
			Jetpack::activate_manage();
2540
		}
2541
	}
2542
2543
	/**
2544
	 * Sets the internal version number and activation state.
2545
	 * @static
2546
	 */
2547
	public static function plugin_initialize() {
2548
		if ( ! Jetpack_Options::get_option( 'activated' ) ) {
2549
			Jetpack_Options::update_option( 'activated', 2 );
2550
		}
2551
2552 View Code Duplication
		if ( ! Jetpack_Options::get_option( 'version' ) ) {
2553
			$version = $old_version = JETPACK__VERSION . ':' . time();
2554
			/** This action is documented in class.jetpack.php */
2555
			do_action( 'updating_jetpack_version', $version, false );
2556
			Jetpack_Options::update_options( compact( 'version', 'old_version' ) );
2557
		}
2558
2559
		Jetpack::load_modules();
2560
2561
		Jetpack_Options::delete_option( 'do_activate' );
2562
	}
2563
2564
	/**
2565
	 * Removes all connection options
2566
	 * @static
2567
	 */
2568
	public static function plugin_deactivation( ) {
2569
		require_once( ABSPATH . '/wp-admin/includes/plugin.php' );
2570
		if( is_plugin_active_for_network( 'jetpack/jetpack.php' ) ) {
2571
			Jetpack_Network::init()->deactivate();
2572
		} else {
2573
			Jetpack::disconnect( false );
2574
			//Jetpack_Heartbeat::init()->deactivate();
2575
		}
2576
	}
2577
2578
	/**
2579
	 * Disconnects from the Jetpack servers.
2580
	 * Forgets all connection details and tells the Jetpack servers to do the same.
2581
	 * @static
2582
	 */
2583
	public static function disconnect( $update_activated_state = true ) {
2584
		wp_clear_scheduled_hook( 'jetpack_clean_nonces' );
2585
		Jetpack::clean_nonces( true );
2586
2587
		Jetpack::load_xml_rpc_client();
2588
		$xml = new Jetpack_IXR_Client();
2589
		$xml->query( 'jetpack.deregister' );
2590
2591
		Jetpack_Options::delete_option(
2592
			array(
2593
				'register',
2594
				'blog_token',
2595
				'user_token',
2596
				'user_tokens',
2597
				'master_user',
2598
				'time_diff',
2599
				'fallback_no_verify_ssl_certs',
2600
			)
2601
		);
2602
2603
		if ( $update_activated_state ) {
2604
			Jetpack_Options::update_option( 'activated', 4 );
2605
		}
2606
2607
		if ( $jetpack_unique_connection = Jetpack_Options::get_option( 'unique_connection' ) ) {
2608
			// Check then record unique disconnection if site has never been disconnected previously
2609
			if ( - 1 == $jetpack_unique_connection['disconnected'] ) {
2610
				$jetpack_unique_connection['disconnected'] = 1;
2611
			} else {
2612
				if ( 0 == $jetpack_unique_connection['disconnected'] ) {
2613
					//track unique disconnect
2614
					$jetpack = Jetpack::init();
2615
2616
					$jetpack->stat( 'connections', 'unique-disconnect' );
2617
					$jetpack->do_stats( 'server_side' );
2618
				}
2619
				// increment number of times disconnected
2620
				$jetpack_unique_connection['disconnected'] += 1;
2621
			}
2622
2623
			Jetpack_Options::update_option( 'unique_connection', $jetpack_unique_connection );
2624
		}
2625
2626
		// Delete all the sync related data. Since it could be taking up space.
2627
		require_once JETPACK__PLUGIN_DIR . 'sync/class.jetpack-sync-sender.php';
2628
		Jetpack_Sync_Sender::get_instance()->uninstall();
2629
2630
		// Disable the Heartbeat cron
2631
		Jetpack_Heartbeat::init()->deactivate();
2632
	}
2633
2634
	/**
2635
	 * Unlinks the current user from the linked WordPress.com user
2636
	 */
2637
	public static function unlink_user( $user_id = null ) {
2638
		if ( ! $tokens = Jetpack_Options::get_option( 'user_tokens' ) )
2639
			return false;
2640
2641
		$user_id = empty( $user_id ) ? get_current_user_id() : intval( $user_id );
2642
2643
		if ( Jetpack_Options::get_option( 'master_user' ) == $user_id )
2644
			return false;
2645
2646
		if ( ! isset( $tokens[ $user_id ] ) )
2647
			return false;
2648
2649
		Jetpack::load_xml_rpc_client();
2650
		$xml = new Jetpack_IXR_Client( compact( 'user_id' ) );
2651
		$xml->query( 'jetpack.unlink_user', $user_id );
2652
2653
		unset( $tokens[ $user_id ] );
2654
2655
		Jetpack_Options::update_option( 'user_tokens', $tokens );
2656
2657
		/**
2658
		 * Fires after the current user has been unlinked from WordPress.com.
2659
		 *
2660
		 * @since 4.1.0
2661
		 *
2662
		 * @param int $user_id The current user's ID.
2663
		 */
2664
		do_action( 'jetpack_unlinked_user', $user_id );
2665
2666
		return true;
2667
	}
2668
2669
	/**
2670
	 * Attempts Jetpack registration.  If it fail, a state flag is set: @see ::admin_page_load()
2671
	 */
2672
	public static function try_registration() {
2673
		// Let's get some testing in beta versions and such.
2674
		if ( self::is_development_version() && defined( 'PHP_URL_HOST' ) ) {
2675
			// Before attempting to connect, let's make sure that the domains are viable.
2676
			$domains_to_check = array_unique( array(
2677
				'siteurl' => parse_url( get_site_url(), PHP_URL_HOST ),
2678
				'homeurl' => parse_url( get_home_url(), PHP_URL_HOST ),
2679
			) );
2680
			foreach ( $domains_to_check as $domain ) {
2681
				$result = Jetpack_Data::is_usable_domain( $domain );
2682
				if ( is_wp_error( $result ) ) {
2683
					return $result;
2684
				}
2685
			}
2686
		}
2687
2688
		$result = Jetpack::register();
2689
2690
		// If there was an error with registration and the site was not registered, record this so we can show a message.
2691
		if ( ! $result || is_wp_error( $result ) ) {
2692
			return $result;
2693
		} else {
2694
			return true;
2695
		}
2696
	}
2697
2698
	/**
2699
	 * Tracking an internal event log. Try not to put too much chaff in here.
2700
	 *
2701
	 * [Everyone Loves a Log!](https://www.youtube.com/watch?v=2C7mNr5WMjA)
2702
	 */
2703
	public static function log( $code, $data = null ) {
2704
		// only grab the latest 200 entries
2705
		$log = array_slice( Jetpack_Options::get_option( 'log', array() ), -199, 199 );
2706
2707
		// Append our event to the log
2708
		$log_entry = array(
2709
			'time'    => time(),
2710
			'user_id' => get_current_user_id(),
2711
			'blog_id' => Jetpack_Options::get_option( 'id' ),
2712
			'code'    => $code,
2713
		);
2714
		// Don't bother storing it unless we've got some.
2715
		if ( ! is_null( $data ) ) {
2716
			$log_entry['data'] = $data;
2717
		}
2718
		$log[] = $log_entry;
2719
2720
		// Try add_option first, to make sure it's not autoloaded.
2721
		// @todo: Add an add_option method to Jetpack_Options
2722
		if ( ! add_option( 'jetpack_log', $log, null, 'no' ) ) {
2723
			Jetpack_Options::update_option( 'log', $log );
2724
		}
2725
2726
		/**
2727
		 * Fires when Jetpack logs an internal event.
2728
		 *
2729
		 * @since 3.0.0
2730
		 *
2731
		 * @param array $log_entry {
2732
		 *	Array of details about the log entry.
2733
		 *
2734
		 *	@param string time Time of the event.
2735
		 *	@param int user_id ID of the user who trigerred the event.
2736
		 *	@param int blog_id Jetpack Blog ID.
2737
		 *	@param string code Unique name for the event.
2738
		 *	@param string data Data about the event.
2739
		 * }
2740
		 */
2741
		do_action( 'jetpack_log_entry', $log_entry );
2742
	}
2743
2744
	/**
2745
	 * Get the internal event log.
2746
	 *
2747
	 * @param $event (string) - only return the specific log events
2748
	 * @param $num   (int)    - get specific number of latest results, limited to 200
2749
	 *
2750
	 * @return array of log events || WP_Error for invalid params
2751
	 */
2752
	public static function get_log( $event = false, $num = false ) {
2753
		if ( $event && ! is_string( $event ) ) {
2754
			return new WP_Error( __( 'First param must be string or empty', 'jetpack' ) );
2755
		}
2756
2757
		if ( $num && ! is_numeric( $num ) ) {
2758
			return new WP_Error( __( 'Second param must be numeric or empty', 'jetpack' ) );
2759
		}
2760
2761
		$entire_log = Jetpack_Options::get_option( 'log', array() );
2762
2763
		// If nothing set - act as it did before, otherwise let's start customizing the output
2764
		if ( ! $num && ! $event ) {
2765
			return $entire_log;
2766
		} else {
2767
			$entire_log = array_reverse( $entire_log );
2768
		}
2769
2770
		$custom_log_output = array();
2771
2772
		if ( $event ) {
2773
			foreach ( $entire_log as $log_event ) {
2774
				if ( $event == $log_event[ 'code' ] ) {
2775
					$custom_log_output[] = $log_event;
2776
				}
2777
			}
2778
		} else {
2779
			$custom_log_output = $entire_log;
2780
		}
2781
2782
		if ( $num ) {
2783
			$custom_log_output = array_slice( $custom_log_output, 0, $num );
2784
		}
2785
2786
		return $custom_log_output;
2787
	}
2788
2789
	/**
2790
	 * Log modification of important settings.
2791
	 */
2792
	public static function log_settings_change( $option, $old_value, $value ) {
2793
		switch( $option ) {
2794
			case 'jetpack_sync_non_public_post_stati':
2795
				self::log( $option, $value );
2796
				break;
2797
		}
2798
	}
2799
2800
	/**
2801
	 * Return stat data for WPCOM sync
2802
	 */
2803
	public static function get_stat_data( $encode = true ) {
2804
		$heartbeat_data = Jetpack_Heartbeat::generate_stats_array();
2805
		$additional_data = self::get_additional_stat_data();
2806
2807
		$merged_data = array_merge( $heartbeat_data, $additional_data );
2808
2809
		if ( $encode ) {
2810
			return json_encode( $merged_data );
2811
		}
2812
2813
		return $merged_data;
2814
	}
2815
2816
	/**
2817
	 * Get additional stat data to sync to WPCOM
2818
	 */
2819
	public static function get_additional_stat_data( $prefix = '' ) {
2820
		$return["{$prefix}themes"]         = Jetpack::get_parsed_theme_data();
0 ignored issues
show
Coding Style Comprehensibility introduced by
$return was never initialized. Although not strictly required by PHP, it is generally a good practice to add $return = array(); before regardless.

Adding an explicit array definition is generally preferable to implicit array definition as it guarantees a stable state of the code.

Let’s take a look at an example:

foreach ($collection as $item) {
    $myArray['foo'] = $item->getFoo();

    if ($item->hasBar()) {
        $myArray['bar'] = $item->getBar();
    }

    // do something with $myArray
}

As you can see in this example, the array $myArray is initialized the first time when the foreach loop is entered. You can also see that the value of the bar key is only written conditionally; thus, its value might result from a previous iteration.

This might or might not be intended. To make your intention clear, your code more readible and to avoid accidental bugs, we recommend to add an explicit initialization $myArray = array() either outside or inside the foreach loop.

Loading history...
2821
		$return["{$prefix}plugins-extra"]  = Jetpack::get_parsed_plugin_data();
2822
		$return["{$prefix}users"]          = count_users();
2823
		$return["{$prefix}site-count"]     = 0;
2824
		if ( function_exists( 'get_blog_count' ) ) {
2825
			$return["{$prefix}site-count"] = get_blog_count();
2826
		}
2827
		return $return;
2828
	}
2829
2830
	/* Admin Pages */
2831
2832
	function admin_init() {
2833
		// If the plugin is not connected, display a connect message.
2834
		if (
2835
			// the plugin was auto-activated and needs its candy
2836
			Jetpack_Options::get_option_and_ensure_autoload( 'do_activate', '0' )
2837
		||
2838
			// the plugin is active, but was never activated.  Probably came from a site-wide network activation
2839
			! Jetpack_Options::get_option( 'activated' )
2840
		) {
2841
			Jetpack::plugin_initialize();
2842
		}
2843
2844
		if ( ! Jetpack::is_active() && ! Jetpack::is_development_mode() ) {
2845
			if ( 4 != Jetpack_Options::get_option( 'activated' ) ) {
2846
				// Show connect notice on dashboard and plugins pages
2847
				add_action( 'load-index.php', array( $this, 'prepare_connect_notice' ) );
2848
				add_action( 'load-plugins.php', array( $this, 'prepare_connect_notice' ) );
2849
			}
2850
		} elseif ( false === Jetpack_Options::get_option( 'fallback_no_verify_ssl_certs' ) ) {
2851
			// Upgrade: 1.1 -> 1.1.1
2852
			// Check and see if host can verify the Jetpack servers' SSL certificate
2853
			$args = array();
2854
			Jetpack_Client::_wp_remote_request(
2855
				Jetpack::fix_url_for_bad_hosts( Jetpack::api_url( 'test' ) ),
2856
				$args,
2857
				true
2858
			);
2859
		} else {
2860
			// Show the notice on the Dashboard only for now
2861
2862
			add_action( 'load-index.php', array( $this, 'prepare_manage_jetpack_notice' ) );
2863
		}
2864
2865
		if ( current_user_can( 'manage_options' ) && 'AUTO' == JETPACK_CLIENT__HTTPS && ! self::permit_ssl() ) {
2866
			add_action( 'jetpack_notices', array( $this, 'alert_auto_ssl_fail' ) );
2867
		}
2868
2869
		add_action( 'load-plugins.php', array( $this, 'intercept_plugin_error_scrape_init' ) );
2870
		add_action( 'admin_enqueue_scripts', array( $this, 'admin_menu_css' ) );
2871
		add_filter( 'plugin_action_links_' . plugin_basename( JETPACK__PLUGIN_DIR . 'jetpack.php' ), array( $this, 'plugin_action_links' ) );
2872
2873
		if ( Jetpack::is_active() || Jetpack::is_development_mode() ) {
2874
			// Artificially throw errors in certain whitelisted cases during plugin activation
2875
			add_action( 'activate_plugin', array( $this, 'throw_error_on_activate_plugin' ) );
2876
		}
2877
2878
		// Jetpack Manage Activation Screen from .com
2879
		Jetpack::module_configuration_activation_screen( 'manage', array( $this, 'manage_activate_screen' ) );
2880
2881
		// Add custom column in wp-admin/users.php to show whether user is linked.
2882
		add_filter( 'manage_users_columns',       array( $this, 'jetpack_icon_user_connected' ) );
2883
		add_action( 'manage_users_custom_column', array( $this, 'jetpack_show_user_connected_icon' ), 10, 3 );
2884
		add_action( 'admin_print_styles',         array( $this, 'jetpack_user_col_style' ) );
2885
	}
2886
2887
	function admin_body_class( $admin_body_class = '' ) {
2888
		$classes = explode( ' ', trim( $admin_body_class ) );
2889
2890
		$classes[] = self::is_active() ? 'jetpack-connected' : 'jetpack-disconnected';
2891
2892
		$admin_body_class = implode( ' ', array_unique( $classes ) );
2893
		return " $admin_body_class ";
2894
	}
2895
2896
	static function add_jetpack_pagestyles( $admin_body_class = '' ) {
2897
		return $admin_body_class . ' jetpack-pagestyles ';
2898
	}
2899
2900
	function prepare_connect_notice() {
2901
		add_action( 'admin_print_styles', array( $this, 'admin_banner_styles' ) );
2902
2903
		add_action( 'admin_notices', array( $this, 'admin_connect_notice' ) );
2904
2905
		if ( Jetpack::state( 'network_nag' ) )
2906
			add_action( 'network_admin_notices', array( $this, 'network_connect_notice' ) );
2907
	}
2908
	/**
2909
	 * Call this function if you want the Big Jetpack Manage Notice to show up.
2910
	 *
2911
	 * @return null
2912
	 */
2913
	function prepare_manage_jetpack_notice() {
2914
2915
		add_action( 'admin_print_styles', array( $this, 'admin_banner_styles' ) );
2916
		add_action( 'admin_notices', array( $this, 'admin_jetpack_manage_notice' ) );
2917
	}
2918
2919
	function manage_activate_screen() {
2920
		include ( JETPACK__PLUGIN_DIR . 'modules/manage/activate-admin.php' );
2921
	}
2922
	/**
2923
	 * Sometimes a plugin can activate without causing errors, but it will cause errors on the next page load.
2924
	 * This function artificially throws errors for such cases (whitelisted).
2925
	 *
2926
	 * @param string $plugin The activated plugin.
2927
	 */
2928
	function throw_error_on_activate_plugin( $plugin ) {
2929
		$active_modules = Jetpack::get_active_modules();
2930
2931
		// The Shortlinks module and the Stats plugin conflict, but won't cause errors on activation because of some function_exists() checks.
2932
		if ( function_exists( 'stats_get_api_key' ) && in_array( 'shortlinks', $active_modules ) ) {
2933
			$throw = false;
2934
2935
			// Try and make sure it really was the stats plugin
2936
			if ( ! class_exists( 'ReflectionFunction' ) ) {
2937
				if ( 'stats.php' == basename( $plugin ) ) {
2938
					$throw = true;
2939
				}
2940
			} else {
2941
				$reflection = new ReflectionFunction( 'stats_get_api_key' );
2942
				if ( basename( $plugin ) == basename( $reflection->getFileName() ) ) {
2943
					$throw = true;
2944
				}
2945
			}
2946
2947
			if ( $throw ) {
2948
				trigger_error( sprintf( __( 'Jetpack contains the most recent version of the old &#8220;%1$s&#8221; plugin.', 'jetpack' ), 'WordPress.com Stats' ), E_USER_ERROR );
2949
			}
2950
		}
2951
	}
2952
2953
	function intercept_plugin_error_scrape_init() {
2954
		add_action( 'check_admin_referer', array( $this, 'intercept_plugin_error_scrape' ), 10, 2 );
2955
	}
2956
2957
	function intercept_plugin_error_scrape( $action, $result ) {
2958
		if ( ! $result ) {
2959
			return;
2960
		}
2961
2962
		foreach ( $this->plugins_to_deactivate as $deactivate_me ) {
2963
			if ( "plugin-activation-error_{$deactivate_me[0]}" == $action ) {
2964
				Jetpack::bail_on_activation( sprintf( __( 'Jetpack contains the most recent version of the old &#8220;%1$s&#8221; plugin.', 'jetpack' ), $deactivate_me[1] ), false );
2965
			}
2966
		}
2967
	}
2968
2969
	function add_remote_request_handlers() {
2970
		add_action( 'wp_ajax_nopriv_jetpack_upload_file', array( $this, 'remote_request_handlers' ) );
2971
	}
2972
2973
	function remote_request_handlers() {
2974
		switch ( current_filter() ) {
2975
		case 'wp_ajax_nopriv_jetpack_upload_file' :
2976
			$response = $this->upload_handler();
2977
			break;
2978
		default :
0 ignored issues
show
There must be no space before the colon in a DEFAULT statement

As per the PSR-2 coding standard, there must not be a space in front of the colon in the default statement.

switch ($expr) {
    default : //wrong
        doSomething();
        break;
}

switch ($expr) {
    default: //right
        doSomething();
        break;
}

To learn more about the PSR-2 coding standard, please refer to the PHP-Fig.

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2979
			$response = new Jetpack_Error( 'unknown_handler', 'Unknown Handler', 400 );
2980
			break;
2981
		}
2982
2983
		if ( ! $response ) {
2984
			$response = new Jetpack_Error( 'unknown_error', 'Unknown Error', 400 );
2985
		}
2986
2987
		if ( is_wp_error( $response ) ) {
2988
			$status_code       = $response->get_error_data();
2989
			$error             = $response->get_error_code();
2990
			$error_description = $response->get_error_message();
2991
2992
			if ( ! is_int( $status_code ) ) {
2993
				$status_code = 400;
2994
			}
2995
2996
			status_header( $status_code );
2997
			die( json_encode( (object) compact( 'error', 'error_description' ) ) );
2998
		}
2999
3000
		status_header( 200 );
3001
		if ( true === $response ) {
3002
			exit;
3003
		}
3004
3005
		die( json_encode( (object) $response ) );
3006
	}
3007
3008
	function upload_handler() {
3009
		if ( 'POST' !== strtoupper( $_SERVER['REQUEST_METHOD'] ) ) {
3010
			return new Jetpack_Error( 405, get_status_header_desc( 405 ), 405 );
3011
		}
3012
3013
		$user = wp_authenticate( '', '' );
3014
		if ( ! $user || is_wp_error( $user ) ) {
3015
			return new Jetpack_Error( 403, get_status_header_desc( 403 ), 403 );
3016
		}
3017
3018
		wp_set_current_user( $user->ID );
3019
3020
		if ( ! current_user_can( 'upload_files' ) ) {
3021
			return new Jetpack_Error( 'cannot_upload_files', 'User does not have permission to upload files', 403 );
3022
		}
3023
3024
		if ( empty( $_FILES ) ) {
3025
			return new Jetpack_Error( 'no_files_uploaded', 'No files were uploaded: nothing to process', 400 );
3026
		}
3027
3028
		foreach ( array_keys( $_FILES ) as $files_key ) {
3029
			if ( ! isset( $_POST["_jetpack_file_hmac_{$files_key}"] ) ) {
3030
				return new Jetpack_Error( 'missing_hmac', 'An HMAC for one or more files is missing', 400 );
3031
			}
3032
		}
3033
3034
		$media_keys = array_keys( $_FILES['media'] );
3035
3036
		$token = Jetpack_Data::get_access_token( get_current_user_id() );
3037
		if ( ! $token || is_wp_error( $token ) ) {
3038
			return new Jetpack_Error( 'unknown_token', 'Unknown Jetpack token', 403 );
3039
		}
3040
3041
		$uploaded_files = array();
3042
		$global_post    = isset( $GLOBALS['post'] ) ? $GLOBALS['post'] : null;
3043
		unset( $GLOBALS['post'] );
3044
		foreach ( $_FILES['media']['name'] as $index => $name ) {
3045
			$file = array();
3046
			foreach ( $media_keys as $media_key ) {
3047
				$file[$media_key] = $_FILES['media'][$media_key][$index];
3048
			}
3049
3050
			list( $hmac_provided, $salt ) = explode( ':', $_POST['_jetpack_file_hmac_media'][$index] );
3051
3052
			$hmac_file = hash_hmac_file( 'sha1', $file['tmp_name'], $salt . $token->secret );
3053
			if ( $hmac_provided !== $hmac_file ) {
3054
				$uploaded_files[$index] = (object) array( 'error' => 'invalid_hmac', 'error_description' => 'The corresponding HMAC for this file does not match' );
3055
				continue;
3056
			}
3057
3058
			$_FILES['.jetpack.upload.'] = $file;
3059
			$post_id = isset( $_POST['post_id'][$index] ) ? absint( $_POST['post_id'][$index] ) : 0;
3060
			if ( ! current_user_can( 'edit_post', $post_id ) ) {
3061
				$post_id = 0;
3062
			}
3063
			$attachment_id = media_handle_upload(
3064
				'.jetpack.upload.',
3065
				$post_id,
3066
				array(),
3067
				array(
3068
					'action' => 'jetpack_upload_file',
3069
				)
3070
			);
3071
3072
			if ( ! $attachment_id ) {
3073
				$uploaded_files[$index] = (object) array( 'error' => 'unknown', 'error_description' => 'An unknown problem occurred processing the upload on the Jetpack site' );
3074
			} elseif ( is_wp_error( $attachment_id ) ) {
3075
				$uploaded_files[$index] = (object) array( 'error' => 'attachment_' . $attachment_id->get_error_code(), 'error_description' => $attachment_id->get_error_message() );
3076
			} else {
3077
				$attachment = get_post( $attachment_id );
3078
				$uploaded_files[$index] = (object) array(
3079
					'id'   => (string) $attachment_id,
3080
					'file' => $attachment->post_title,
3081
					'url'  => wp_get_attachment_url( $attachment_id ),
3082
					'type' => $attachment->post_mime_type,
3083
					'meta' => wp_get_attachment_metadata( $attachment_id ),
3084
				);
3085
			}
3086
		}
3087
		if ( ! is_null( $global_post ) ) {
3088
			$GLOBALS['post'] = $global_post;
3089
		}
3090
3091
		return $uploaded_files;
3092
	}
3093
3094
	/**
3095
	 * Add help to the Jetpack page
3096
	 *
3097
	 * @since Jetpack (1.2.3)
3098
	 * @return false if not the Jetpack page
3099
	 */
3100
	function admin_help() {
3101
		$current_screen = get_current_screen();
3102
3103
		// Overview
3104
		$current_screen->add_help_tab(
3105
			array(
3106
				'id'		=> 'home',
3107
				'title'		=> __( 'Home', 'jetpack' ),
3108
				'content'	=>
3109
					'<p><strong>' . __( 'Jetpack by WordPress.com', 'jetpack' ) . '</strong></p>' .
3110
					'<p>' . __( 'Jetpack supercharges your self-hosted WordPress site with the awesome cloud power of WordPress.com.', 'jetpack' ) . '</p>' .
3111
					'<p>' . __( 'On this page, you are able to view the modules available within Jetpack, learn more about them, and activate or deactivate them as needed.', 'jetpack' ) . '</p>',
3112
			)
3113
		);
3114
3115
		// Screen Content
3116
		if ( current_user_can( 'manage_options' ) ) {
3117
			$current_screen->add_help_tab(
3118
				array(
3119
					'id'		=> 'settings',
3120
					'title'		=> __( 'Settings', 'jetpack' ),
3121
					'content'	=>
3122
						'<p><strong>' . __( 'Jetpack by WordPress.com',                                              'jetpack' ) . '</strong></p>' .
3123
						'<p>' . __( 'You can activate or deactivate individual Jetpack modules to suit your needs.', 'jetpack' ) . '</p>' .
3124
						'<ol>' .
3125
							'<li>' . __( 'Each module has an Activate or Deactivate link so you can toggle one individually.',														'jetpack' ) . '</li>' .
3126
							'<li>' . __( 'Using the checkboxes next to each module, you can select multiple modules to toggle via the Bulk Actions menu at the top of the list.',	'jetpack' ) . '</li>' .
3127
						'</ol>' .
3128
						'<p>' . __( 'Using the tools on the right, you can search for specific modules, filter by module categories or which are active, or change the sorting order.', 'jetpack' ) . '</p>'
3129
				)
3130
			);
3131
		}
3132
3133
		// Help Sidebar
3134
		$current_screen->set_help_sidebar(
3135
			'<p><strong>' . __( 'For more information:', 'jetpack' ) . '</strong></p>' .
3136
			'<p><a href="https://jetpack.com/faq/" target="_blank">'     . __( 'Jetpack FAQ',     'jetpack' ) . '</a></p>' .
3137
			'<p><a href="https://jetpack.com/support/" target="_blank">' . __( 'Jetpack Support', 'jetpack' ) . '</a></p>' .
3138
			'<p><a href="' . Jetpack::admin_url( array( 'page' => 'jetpack-debugger' )  ) .'">' . __( 'Jetpack Debugging Center', 'jetpack' ) . '</a></p>'
3139
		);
3140
	}
3141
3142
	function admin_menu_css() {
3143
		wp_enqueue_style( 'jetpack-icons' );
3144
	}
3145
3146
	function admin_menu_order() {
3147
		return true;
3148
	}
3149
3150 View Code Duplication
	function jetpack_menu_order( $menu_order ) {
3151
		$jp_menu_order = array();
3152
3153
		foreach ( $menu_order as $index => $item ) {
3154
			if ( $item != 'jetpack' ) {
3155
				$jp_menu_order[] = $item;
3156
			}
3157
3158
			if ( $index == 0 ) {
3159
				$jp_menu_order[] = 'jetpack';
3160
			}
3161
		}
3162
3163
		return $jp_menu_order;
3164
	}
3165
3166
	function admin_head() {
3167 View Code Duplication
		if ( isset( $_GET['configure'] ) && Jetpack::is_module( $_GET['configure'] ) && current_user_can( 'manage_options' ) )
3168
			/** This action is documented in class.jetpack-admin-page.php */
3169
			do_action( 'jetpack_module_configuration_head_' . $_GET['configure'] );
3170
	}
3171
3172 View Code Duplication
	function admin_banner_styles() {
3173
		$min = ( defined( 'SCRIPT_DEBUG' ) && SCRIPT_DEBUG ) ? '' : '.min';
3174
3175
		wp_enqueue_style( 'jetpack', plugins_url( "css/jetpack-banners{$min}.css", JETPACK__PLUGIN_FILE ), false, JETPACK__VERSION . '-20121016' );
3176
		wp_style_add_data( 'jetpack', 'rtl', 'replace' );
3177
		wp_style_add_data( 'jetpack', 'suffix', $min );
3178
	}
3179
3180
	function plugin_action_links( $actions ) {
3181
3182
		$jetpack_home = array( 'jetpack-home' => sprintf( '<a href="%s">%s</a>', Jetpack::admin_url( 'page=jetpack' ), __( 'Jetpack', 'jetpack' ) ) );
3183
3184
		if( current_user_can( 'jetpack_manage_modules' ) && ( Jetpack::is_active() || Jetpack::is_development_mode() ) ) {
3185
			return array_merge(
3186
				$jetpack_home,
3187
				array( 'settings' => sprintf( '<a href="%s">%s</a>', Jetpack::admin_url( 'page=jetpack_modules' ), __( 'Settings', 'jetpack' ) ) ),
3188
				array( 'support' => sprintf( '<a href="%s">%s</a>', Jetpack::admin_url( 'page=jetpack-debugger '), __( 'Support', 'jetpack' ) ) ),
3189
				$actions
3190
				);
3191
			}
3192
3193
		return array_merge( $jetpack_home, $actions );
3194
	}
3195
3196
	function admin_connect_notice() {
3197
		// Don't show the connect notice anywhere but the plugins.php after activating
3198
		$current = get_current_screen();
3199
		if ( 'plugins' !== $current->parent_base )
3200
			return;
3201
3202
		if ( ! current_user_can( 'jetpack_connect' ) )
3203
			return;
3204
3205
		$dismiss_and_deactivate_url = wp_nonce_url( Jetpack::admin_url( '?page=jetpack&jetpack-notice=dismiss' ), 'jetpack-deactivate' );
3206
		?>
3207
		<div id="message" class="updated jp-banner">
3208
			<a href="<?php echo esc_url( $dismiss_and_deactivate_url ); ?>" class="notice-dismiss" title="<?php esc_attr_e( 'Dismiss this notice', 'jetpack' ); ?>"></a>
3209
			<?php if ( in_array( Jetpack_Options::get_option( 'activated' ) , array( 1, 2, 3 ) ) ) : ?>
3210
					<div class="jp-banner__description-container">
3211
						<h2 class="jp-banner__header"><?php _e( 'Your Jetpack is almost ready!', 'jetpack' ); ?></h2>
3212
						<p class="jp-banner__description"><?php _e( 'Please connect to or create a WordPress.com account to enable Jetpack, including powerful security, traffic, and customization services.', 'jetpack' ); ?></p>
3213
						<p class="jp-banner__button-container">
3214
							<a href="<?php echo $this->build_connect_url( false, false, 'banner' ) ?>" class="button button-primary" id="wpcom-connect"><?php _e( 'Connect to WordPress.com', 'jetpack' ); ?></a>
3215
							<a href="<?php echo Jetpack::admin_url( 'admin.php?page=jetpack' ) ?>" class="button" title="<?php esc_attr_e( 'Learn about the benefits you receive when you connect Jetpack to WordPress.com', 'jetpack' ); ?>"><?php _e( 'Learn more', 'jetpack' ); ?></a>
3216
						</p>
3217
					</div>
3218
			<?php else : ?>
3219
				<div class="jp-banner__content">
3220
					<h2><?php _e( 'Jetpack is installed!', 'jetpack' ) ?></h2>
3221
					<p><?php _e( 'It\'s ready to bring awesome, WordPress.com cloud-powered features to your site.', 'jetpack' ) ?></p>
3222
				</div>
3223
				<div class="jp-banner__action-container">
3224
					<a href="<?php echo Jetpack::admin_url() ?>" class="jp-banner__button" id="wpcom-connect"><?php _e( 'Learn More', 'jetpack' ); ?></a>
3225
				</div>
3226
			<?php endif; ?>
3227
		</div>
3228
3229
		<?php
3230
	}
3231
3232
	/**
3233
	 * This is the first banner
3234
	 * It should be visible only to user that can update the option
3235
	 * Are not connected
3236
	 *
3237
	 * @return null
3238
	 */
3239
	function admin_jetpack_manage_notice() {
3240
		$screen = get_current_screen();
3241
3242
		// Don't show the connect notice on the jetpack settings page.
3243
		if ( ! in_array( $screen->base, array( 'dashboard' ) ) || $screen->is_network || $screen->action )
3244
			return;
3245
3246
		// Only show it if don't have the managment option set.
3247
		// And not dismissed it already.
3248
		if ( ! $this->can_display_jetpack_manage_notice() || Jetpack_Options::get_option( 'dismissed_manage_banner' ) ) {
3249
			return;
3250
		}
3251
3252
		$opt_out_url = $this->opt_out_jetpack_manage_url();
3253
		$opt_in_url  = $this->opt_in_jetpack_manage_url();
3254
		/**
3255
		 * I think it would be great to have different wordsing depending on where you are
3256
		 * for example if we show the notice on dashboard and a different one if we show it on Plugins screen
3257
		 * etc..
3258
		 */
3259
3260
		?>
3261
		<div id="message" class="updated jp-banner">
3262
				<a href="<?php echo esc_url( $opt_out_url ); ?>" class="notice-dismiss" title="<?php esc_attr_e( 'Dismiss this notice', 'jetpack' ); ?>"></a>
3263
				<div class="jp-banner__description-container">
3264
					<h2 class="jp-banner__header"><?php esc_html_e( 'Jetpack Centralized Site Management', 'jetpack' ); ?></h2>
3265
					<p class="jp-banner__description"><?php printf( __( 'Manage multiple Jetpack enabled sites from one single dashboard at wordpress.com. Allows all existing, connected Administrators to modify your site.', 'jetpack' ), 'https://jetpack.com/support/site-management' ); ?></p>
3266
					<p class="jp-banner__button-container">
3267
						<a href="<?php echo esc_url( $opt_in_url ); ?>" class="button button-primary" id="wpcom-connect"><?php _e( 'Activate Jetpack Manage', 'jetpack' ); ?></a>
3268
						<a href="https://jetpack.com/support/site-management" class="button" target="_blank" title="<?php esc_attr_e( 'Learn more about Jetpack Manage on Jetpack.com', 'jetpack' ); ?>"><?php _e( 'Learn more', 'jetpack' ); ?></a>
3269
					</p>
3270
				</div>
3271
		</div>
3272
		<?php
3273
	}
3274
3275
	/**
3276
	 * Returns the url that the user clicks to remove the notice for the big banner
3277
	 * @return (string)
3278
	 */
3279
	function opt_out_jetpack_manage_url() {
3280
		$referer = '&_wp_http_referer=' . add_query_arg( '_wp_http_referer', null );
3281
		return wp_nonce_url( Jetpack::admin_url( 'jetpack-notice=jetpack-manage-opt-out' . $referer ), 'jetpack_manage_banner_opt_out' );
3282
	}
3283
	/**
3284
	 * Returns the url that the user clicks to opt in to Jetpack Manage
3285
	 * @return (string)
3286
	 */
3287
	function opt_in_jetpack_manage_url() {
3288
		return wp_nonce_url( Jetpack::admin_url( 'jetpack-notice=jetpack-manage-opt-in' ), 'jetpack_manage_banner_opt_in' );
3289
	}
3290
3291
	function opt_in_jetpack_manage_notice() {
3292
		?>
3293
		<div class="wrap">
3294
			<div id="message" class="jetpack-message is-opt-in">
3295
				<?php echo sprintf( __( '<p><a href="%1$s" title="Opt in to WordPress.com Site Management" >Activate Site Management</a> to manage multiple sites from our centralized dashboard at wordpress.com/sites. <a href="%2$s" target="_blank">Learn more</a>.</p><a href="%1$s" class="jp-button">Activate Now</a>', 'jetpack' ), $this->opt_in_jetpack_manage_url(), 'https://jetpack.com/support/site-management' ); ?>
3296
			</div>
3297
		</div>
3298
		<?php
3299
3300
	}
3301
	/**
3302
	 * Determines whether to show the notice of not true = display notice
3303
	 * @return (bool)
3304
	 */
3305
	function can_display_jetpack_manage_notice() {
3306
		// never display the notice to users that can't do anything about it anyways
3307
		if( ! current_user_can( 'jetpack_manage_modules' ) )
3308
			return false;
3309
3310
		// don't display if we are in development more
3311
		if( Jetpack::is_development_mode() ) {
3312
			return false;
3313
		}
3314
		// don't display if the site is private
3315
		if(  ! Jetpack_Options::get_option( 'public' ) )
3316
			return false;
3317
3318
		/**
3319
		 * Should the Jetpack Remote Site Management notice be displayed.
3320
		 *
3321
		 * @since 3.3.0
3322
		 *
3323
		 * @param bool ! self::is_module_active( 'manage' ) Is the Manage module inactive.
3324
		 */
3325
		return apply_filters( 'can_display_jetpack_manage_notice', ! self::is_module_active( 'manage' ) );
3326
	}
3327
3328
	function network_connect_notice() {
3329
		?>
3330
		<div id="message" class="updated jetpack-message">
3331
			<div class="squeezer">
3332
				<h2><?php _e( '<strong>Jetpack is activated!</strong> Each site on your network must be connected individually by an admin on that site.', 'jetpack' ) ?></h2>
3333
			</div>
3334
		</div>
3335
		<?php
3336
	}
3337
3338
	/*
3339
	 * Registration flow:
3340
	 * 1 - ::admin_page_load() action=register
3341
	 * 2 - ::try_registration()
3342
	 * 3 - ::register()
3343
	 *     - Creates jetpack_register option containing two secrets and a timestamp
3344
	 *     - Calls https://jetpack.wordpress.com/jetpack.register/1/ with
3345
	 *       siteurl, home, gmt_offset, timezone_string, site_name, secret_1, secret_2, site_lang, timeout, stats_id
3346
	 *     - That request to jetpack.wordpress.com does not immediately respond.  It first makes a request BACK to this site's
3347
	 *       xmlrpc.php?for=jetpack: RPC method: jetpack.verifyRegistration, Parameters: secret_1
3348
	 *     - The XML-RPC request verifies secret_1, deletes both secrets and responds with: secret_2
3349
	 *     - https://jetpack.wordpress.com/jetpack.register/1/ verifies that XML-RPC response (secret_2) then finally responds itself with
3350
	 *       jetpack_id, jetpack_secret, jetpack_public
3351
	 *     - ::register() then stores jetpack_options: id => jetpack_id, blog_token => jetpack_secret
3352
	 * 4 - redirect to https://wordpress.com/start/jetpack-connect
3353
	 * 5 - user logs in with WP.com account
3354
	 * 6 - remote request to this site's xmlrpc.php with action remoteAuthorize, Jetpack_XMLRPC_Server->remote_authorize
3355
	 *		- Jetpack_Client_Server::authorize()
3356
	 *		- Jetpack_Client_Server::get_token()
3357
	 *		- GET https://jetpack.wordpress.com/jetpack.token/1/ with
3358
	 *        client_id, client_secret, grant_type, code, redirect_uri:action=authorize, state, scope, user_email, user_login
3359
	 *			- which responds with access_token, token_type, scope
3360
	 *		- Jetpack_Client_Server::authorize() stores jetpack_options: user_token => access_token.$user_id
3361
	 *		- Jetpack::activate_default_modules()
3362
	 *     		- Deactivates deprecated plugins
3363
	 *     		- Activates all default modules
3364
	 *		- Responds with either error, or 'connected' for new connection, or 'linked' for additional linked users
3365
	 * 7 - For a new connection, user selects a Jetpack plan on wordpress.com
3366
	 * 8 - User is redirected back to wp-admin/index.php?page=jetpack with state:message=authorized
3367
	 *     Done!
3368
	 */
3369
3370
	/**
3371
	 * Handles the page load events for the Jetpack admin page
3372
	 */
3373
	function admin_page_load() {
3374
		$error = false;
3375
3376
		// Make sure we have the right body class to hook stylings for subpages off of.
3377
		add_filter( 'admin_body_class', array( __CLASS__, 'add_jetpack_pagestyles' ) );
3378
3379
		if ( ! empty( $_GET['jetpack_restate'] ) ) {
3380
			// Should only be used in intermediate redirects to preserve state across redirects
3381
			Jetpack::restate();
3382
		}
3383
3384
		if ( isset( $_GET['connect_url_redirect'] ) ) {
3385
			// User clicked in the iframe to link their accounts
3386
			if ( ! Jetpack::is_user_connected() ) {
3387
				$connect_url = $this->build_connect_url( true, false, 'iframe' );
3388
				if ( isset( $_GET['notes_iframe'] ) )
3389
					$connect_url .= '&notes_iframe';
3390
				wp_redirect( $connect_url );
3391
				exit;
0 ignored issues
show
Coding Style Compatibility introduced by
The method admin_page_load() contains an exit expression.

An exit expression should only be used in rare cases. For example, if you write a short command line script.

In most cases however, using an exit expression makes the code untestable and often causes incompatibilities with other libraries. Thus, unless you are absolutely sure it is required here, we recommend to refactor your code to avoid its usage.

Loading history...
3392
			} else {
3393
				if ( ! isset( $_GET['calypso_env'] ) ) {
3394
					Jetpack::state( 'message', 'already_authorized' );
3395
					wp_safe_redirect( Jetpack::admin_url() );
3396
				} else {
3397
					$connect_url = $this->build_connect_url( true, false, 'iframe' );
3398
					$connect_url .= '&already_authorized=true';
3399
					wp_redirect( $connect_url );
3400
				}
3401
			}
3402
		}
3403
3404
3405
		if ( isset( $_GET['action'] ) ) {
3406
			switch ( $_GET['action'] ) {
3407
			case 'authorize':
3408
				if ( Jetpack::is_active() && Jetpack::is_user_connected() ) {
3409
					Jetpack::state( 'message', 'already_authorized' );
3410
					wp_safe_redirect( Jetpack::admin_url() );
3411
					exit;
0 ignored issues
show
Coding Style Compatibility introduced by
The method admin_page_load() contains an exit expression.

An exit expression should only be used in rare cases. For example, if you write a short command line script.

In most cases however, using an exit expression makes the code untestable and often causes incompatibilities with other libraries. Thus, unless you are absolutely sure it is required here, we recommend to refactor your code to avoid its usage.

Loading history...
3412
				}
3413
				Jetpack::log( 'authorize' );
3414
				$client_server = new Jetpack_Client_Server;
3415
				$client_server->client_authorize();
3416
				exit;
3417
			case 'register' :
3418
				if ( ! current_user_can( 'jetpack_connect' ) ) {
3419
					$error = 'cheatin';
3420
					break;
3421
				}
3422
				check_admin_referer( 'jetpack-register' );
3423
				Jetpack::log( 'register' );
3424
				Jetpack::maybe_set_version_option();
3425
				$registered = Jetpack::try_registration();
3426
				if ( is_wp_error( $registered ) ) {
3427
					$error = $registered->get_error_code();
3428
					Jetpack::state( 'error', $error );
3429
					Jetpack::state( 'error', $registered->get_error_message() );
3430
					break;
3431
				}
3432
3433
				$from = isset( $_GET['from'] ) ? $_GET['from'] : false;
3434
3435
				wp_redirect( $this->build_connect_url( true, false, $from ) );
3436
				exit;
0 ignored issues
show
Coding Style Compatibility introduced by
The method admin_page_load() contains an exit expression.

An exit expression should only be used in rare cases. For example, if you write a short command line script.

In most cases however, using an exit expression makes the code untestable and often causes incompatibilities with other libraries. Thus, unless you are absolutely sure it is required here, we recommend to refactor your code to avoid its usage.

Loading history...
3437
			case 'activate' :
3438
				if ( ! current_user_can( 'jetpack_activate_modules' ) ) {
3439
					$error = 'cheatin';
3440
					break;
3441
				}
3442
3443
				$module = stripslashes( $_GET['module'] );
3444
				check_admin_referer( "jetpack_activate-$module" );
3445
				Jetpack::log( 'activate', $module );
3446
				Jetpack::activate_module( $module );
3447
				// The following two lines will rarely happen, as Jetpack::activate_module normally exits at the end.
3448
				wp_safe_redirect( Jetpack::admin_url( 'page=jetpack' ) );
3449
				exit;
0 ignored issues
show
Coding Style Compatibility introduced by
The method admin_page_load() contains an exit expression.

An exit expression should only be used in rare cases. For example, if you write a short command line script.

In most cases however, using an exit expression makes the code untestable and often causes incompatibilities with other libraries. Thus, unless you are absolutely sure it is required here, we recommend to refactor your code to avoid its usage.

Loading history...
3450
			case 'activate_default_modules' :
3451
				check_admin_referer( 'activate_default_modules' );
3452
				Jetpack::log( 'activate_default_modules' );
3453
				Jetpack::restate();
3454
				$min_version   = isset( $_GET['min_version'] ) ? $_GET['min_version'] : false;
3455
				$max_version   = isset( $_GET['max_version'] ) ? $_GET['max_version'] : false;
3456
				$other_modules = isset( $_GET['other_modules'] ) && is_array( $_GET['other_modules'] ) ? $_GET['other_modules'] : array();
3457
				Jetpack::activate_default_modules( $min_version, $max_version, $other_modules );
3458
				wp_safe_redirect( Jetpack::admin_url( 'page=jetpack' ) );
3459
				exit;
0 ignored issues
show
Coding Style Compatibility introduced by
The method admin_page_load() contains an exit expression.

An exit expression should only be used in rare cases. For example, if you write a short command line script.

In most cases however, using an exit expression makes the code untestable and often causes incompatibilities with other libraries. Thus, unless you are absolutely sure it is required here, we recommend to refactor your code to avoid its usage.

Loading history...
3460
			case 'disconnect' :
3461
				if ( ! current_user_can( 'jetpack_disconnect' ) ) {
3462
					$error = 'cheatin';
3463
					break;
3464
				}
3465
3466
				check_admin_referer( 'jetpack-disconnect' );
3467
				Jetpack::log( 'disconnect' );
3468
				Jetpack::disconnect();
3469
				wp_safe_redirect( Jetpack::admin_url( 'disconnected=true' ) );
3470
				exit;
0 ignored issues
show
Coding Style Compatibility introduced by
The method admin_page_load() contains an exit expression.

An exit expression should only be used in rare cases. For example, if you write a short command line script.

In most cases however, using an exit expression makes the code untestable and often causes incompatibilities with other libraries. Thus, unless you are absolutely sure it is required here, we recommend to refactor your code to avoid its usage.

Loading history...
3471
			case 'reconnect' :
3472
				if ( ! current_user_can( 'jetpack_reconnect' ) ) {
3473
					$error = 'cheatin';
3474
					break;
3475
				}
3476
3477
				check_admin_referer( 'jetpack-reconnect' );
3478
				Jetpack::log( 'reconnect' );
3479
				$this->disconnect();
3480
				wp_redirect( $this->build_connect_url( true, false, 'reconnect' ) );
3481
				exit;
0 ignored issues
show
Coding Style Compatibility introduced by
The method admin_page_load() contains an exit expression.

An exit expression should only be used in rare cases. For example, if you write a short command line script.

In most cases however, using an exit expression makes the code untestable and often causes incompatibilities with other libraries. Thus, unless you are absolutely sure it is required here, we recommend to refactor your code to avoid its usage.

Loading history...
3482 View Code Duplication
			case 'deactivate' :
3483
				if ( ! current_user_can( 'jetpack_deactivate_modules' ) ) {
3484
					$error = 'cheatin';
3485
					break;
3486
				}
3487
3488
				$modules = stripslashes( $_GET['module'] );
3489
				check_admin_referer( "jetpack_deactivate-$modules" );
3490
				foreach ( explode( ',', $modules ) as $module ) {
3491
					Jetpack::log( 'deactivate', $module );
3492
					Jetpack::deactivate_module( $module );
3493
					Jetpack::state( 'message', 'module_deactivated' );
3494
				}
3495
				Jetpack::state( 'module', $modules );
3496
				wp_safe_redirect( Jetpack::admin_url( 'page=jetpack' ) );
3497
				exit;
0 ignored issues
show
Coding Style Compatibility introduced by
The method admin_page_load() contains an exit expression.

An exit expression should only be used in rare cases. For example, if you write a short command line script.

In most cases however, using an exit expression makes the code untestable and often causes incompatibilities with other libraries. Thus, unless you are absolutely sure it is required here, we recommend to refactor your code to avoid its usage.

Loading history...
3498
			case 'unlink' :
3499
				$redirect = isset( $_GET['redirect'] ) ? $_GET['redirect'] : '';
3500
				check_admin_referer( 'jetpack-unlink' );
3501
				Jetpack::log( 'unlink' );
3502
				$this->unlink_user();
3503
				Jetpack::state( 'message', 'unlinked' );
3504
				if ( 'sub-unlink' == $redirect ) {
3505
					wp_safe_redirect( admin_url() );
3506
				} else {
3507
					wp_safe_redirect( Jetpack::admin_url( array( 'page' => $redirect ) ) );
3508
				}
3509
				exit;
3510
			default:
3511
				/**
3512
				 * Fires when a Jetpack admin page is loaded with an unrecognized parameter.
3513
				 *
3514
				 * @since 2.6.0
3515
				 *
3516
				 * @param string sanitize_key( $_GET['action'] ) Unrecognized URL parameter.
3517
				 */
3518
				do_action( 'jetpack_unrecognized_action', sanitize_key( $_GET['action'] ) );
3519
			}
3520
		}
3521
3522
		if ( ! $error = $error ? $error : Jetpack::state( 'error' ) ) {
3523
			self::activate_new_modules( true );
3524
		}
3525
3526
		$message_code = Jetpack::state( 'message' );
3527
		if ( Jetpack::state( 'optin-manage' ) ) {
3528
			$activated_manage = $message_code;
3529
			$message_code = 'jetpack-manage';
3530
		}
3531
3532
		switch ( $message_code ) {
3533
		case 'jetpack-manage':
3534
			$this->message = '<strong>' . sprintf( __( 'You are all set! Your site can now be managed from <a href="%s" target="_blank">wordpress.com/sites</a>.', 'jetpack' ), 'https://wordpress.com/sites' ) . '</strong>';
3535
			if ( $activated_manage ) {
3536
				$this->message .= '<br /><strong>' . __( 'Manage has been activated for you!', 'jetpack'  ) . '</strong>';
3537
			}
3538
			break;
3539
3540
		}
3541
3542
		$deactivated_plugins = Jetpack::state( 'deactivated_plugins' );
3543
3544
		if ( ! empty( $deactivated_plugins ) ) {
3545
			$deactivated_plugins = explode( ',', $deactivated_plugins );
3546
			$deactivated_titles  = array();
3547
			foreach ( $deactivated_plugins as $deactivated_plugin ) {
3548
				if ( ! isset( $this->plugins_to_deactivate[$deactivated_plugin] ) ) {
3549
					continue;
3550
				}
3551
3552
				$deactivated_titles[] = '<strong>' . str_replace( ' ', '&nbsp;', $this->plugins_to_deactivate[$deactivated_plugin][1] ) . '</strong>';
3553
			}
3554
3555
			if ( $deactivated_titles ) {
3556
				if ( $this->message ) {
3557
					$this->message .= "<br /><br />\n";
3558
				}
3559
3560
				$this->message .= wp_sprintf(
3561
					_n(
3562
						'Jetpack contains the most recent version of the old %l plugin.',
3563
						'Jetpack contains the most recent versions of the old %l plugins.',
3564
						count( $deactivated_titles ),
3565
						'jetpack'
3566
					),
3567
					$deactivated_titles
3568
				);
3569
3570
				$this->message .= "<br />\n";
3571
3572
				$this->message .= _n(
3573
					'The old version has been deactivated and can be removed from your site.',
3574
					'The old versions have been deactivated and can be removed from your site.',
3575
					count( $deactivated_titles ),
3576
					'jetpack'
3577
				);
3578
			}
3579
		}
3580
3581
		$this->privacy_checks = Jetpack::state( 'privacy_checks' );
3582
3583
		if ( $this->message || $this->error || $this->privacy_checks || $this->can_display_jetpack_manage_notice() ) {
3584
			add_action( 'jetpack_notices', array( $this, 'admin_notices' ) );
3585
		}
3586
3587 View Code Duplication
		if ( isset( $_GET['configure'] ) && Jetpack::is_module( $_GET['configure'] ) && current_user_can( 'manage_options' ) ) {
3588
			/**
3589
			 * Fires when a module configuration page is loaded.
3590
			 * The dynamic part of the hook is the configure parameter from the URL.
3591
			 *
3592
			 * @since 1.1.0
3593
			 */
3594
			do_action( 'jetpack_module_configuration_load_' . $_GET['configure'] );
3595
		}
3596
3597
		add_filter( 'jetpack_short_module_description', 'wptexturize' );
3598
	}
3599
3600
	function admin_notices() {
3601
3602
		if ( $this->error ) {
3603
?>
3604
<div id="message" class="jetpack-message jetpack-err">
3605
	<div class="squeezer">
3606
		<h2><?php echo wp_kses( $this->error, array( 'a' => array( 'href' => array() ), 'small' => true, 'code' => true, 'strong' => true, 'br' => true, 'b' => true ) ); ?></h2>
3607
<?php	if ( $desc = Jetpack::state( 'error_description' ) ) : ?>
3608
		<p><?php echo esc_html( stripslashes( $desc ) ); ?></p>
3609
<?php	endif; ?>
3610
	</div>
3611
</div>
3612
<?php
3613
		}
3614
3615
		if ( $this->message ) {
3616
?>
3617
<div id="message" class="jetpack-message">
3618
	<div class="squeezer">
3619
		<h2><?php echo wp_kses( $this->message, array( 'strong' => array(), 'a' => array( 'href' => true ), 'br' => true ) ); ?></h2>
3620
	</div>
3621
</div>
3622
<?php
3623
		}
3624
3625
		if ( $this->privacy_checks ) :
3626
			$module_names = $module_slugs = array();
3627
3628
			$privacy_checks = explode( ',', $this->privacy_checks );
3629
			$privacy_checks = array_filter( $privacy_checks, array( 'Jetpack', 'is_module' ) );
3630
			foreach ( $privacy_checks as $module_slug ) {
3631
				$module = Jetpack::get_module( $module_slug );
3632
				if ( ! $module ) {
3633
					continue;
3634
				}
3635
3636
				$module_slugs[] = $module_slug;
3637
				$module_names[] = "<strong>{$module['name']}</strong>";
3638
			}
3639
3640
			$module_slugs = join( ',', $module_slugs );
3641
?>
3642
<div id="message" class="jetpack-message jetpack-err">
3643
	<div class="squeezer">
3644
		<h2><strong><?php esc_html_e( 'Is this site private?', 'jetpack' ); ?></strong></h2><br />
3645
		<p><?php
3646
			echo wp_kses(
3647
				wptexturize(
3648
					wp_sprintf(
3649
						_nx(
3650
							"Like your site's RSS feeds, %l allows access to your posts and other content to third parties.",
3651
							"Like your site's RSS feeds, %l allow access to your posts and other content to third parties.",
3652
							count( $privacy_checks ),
3653
							'%l = list of Jetpack module/feature names',
3654
							'jetpack'
3655
						),
3656
						$module_names
3657
					)
3658
				),
3659
				array( 'strong' => true )
3660
			);
3661
3662
			echo "\n<br />\n";
3663
3664
			echo wp_kses(
3665
				sprintf(
3666
					_nx(
3667
						'If your site is not publicly accessible, consider <a href="%1$s" title="%2$s">deactivating this feature</a>.',
3668
						'If your site is not publicly accessible, consider <a href="%1$s" title="%2$s">deactivating these features</a>.',
3669
						count( $privacy_checks ),
3670
						'%1$s = deactivation URL, %2$s = "Deactivate {list of Jetpack module/feature names}',
3671
						'jetpack'
3672
					),
3673
					wp_nonce_url(
3674
						Jetpack::admin_url(
3675
							array(
3676
								'page'   => 'jetpack',
3677
								'action' => 'deactivate',
3678
								'module' => urlencode( $module_slugs ),
3679
							)
3680
						),
3681
						"jetpack_deactivate-$module_slugs"
3682
					),
3683
					esc_attr( wp_kses( wp_sprintf( _x( 'Deactivate %l', '%l = list of Jetpack module/feature names', 'jetpack' ), $module_names ), array() ) )
3684
				),
3685
				array( 'a' => array( 'href' => true, 'title' => true ) )
3686
			);
3687
		?></p>
3688
	</div>
3689
</div>
3690
<?php endif;
3691
	// only display the notice if the other stuff is not there
3692
	if( $this->can_display_jetpack_manage_notice() && !  $this->error && ! $this->message && ! $this->privacy_checks ) {
3693
		if( isset( $_GET['page'] ) && 'jetpack' != $_GET['page'] )
3694
			$this->opt_in_jetpack_manage_notice();
3695
		}
3696
	}
3697
3698
	/**
3699
	 * Record a stat for later output.  This will only currently output in the admin_footer.
3700
	 */
3701
	function stat( $group, $detail ) {
3702
		if ( ! isset( $this->stats[ $group ] ) )
3703
			$this->stats[ $group ] = array();
3704
		$this->stats[ $group ][] = $detail;
3705
	}
3706
3707
	/**
3708
	 * Load stats pixels. $group is auto-prefixed with "x_jetpack-"
3709
	 */
3710
	function do_stats( $method = '' ) {
3711
		if ( is_array( $this->stats ) && count( $this->stats ) ) {
3712
			foreach ( $this->stats as $group => $stats ) {
3713
				if ( is_array( $stats ) && count( $stats ) ) {
3714
					$args = array( "x_jetpack-{$group}" => implode( ',', $stats ) );
3715
					if ( 'server_side' === $method ) {
3716
						self::do_server_side_stat( $args );
3717
					} else {
3718
						echo '<img src="' . esc_url( self::build_stats_url( $args ) ) . '" width="1" height="1" style="display:none;" />';
3719
					}
3720
				}
3721
				unset( $this->stats[ $group ] );
3722
			}
3723
		}
3724
	}
3725
3726
	/**
3727
	 * Runs stats code for a one-off, server-side.
3728
	 *
3729
	 * @param $args array|string The arguments to append to the URL. Should include `x_jetpack-{$group}={$stats}` or whatever we want to store.
3730
	 *
3731
	 * @return bool If it worked.
3732
	 */
3733
	static function do_server_side_stat( $args ) {
3734
		$response = wp_remote_get( esc_url_raw( self::build_stats_url( $args ) ) );
3735
		if ( is_wp_error( $response ) )
3736
			return false;
3737
3738
		if ( 200 !== wp_remote_retrieve_response_code( $response ) )
3739
			return false;
3740
3741
		return true;
3742
	}
3743
3744
	/**
3745
	 * Builds the stats url.
3746
	 *
3747
	 * @param $args array|string The arguments to append to the URL.
3748
	 *
3749
	 * @return string The URL to be pinged.
3750
	 */
3751
	static function build_stats_url( $args ) {
3752
		$defaults = array(
3753
			'v'    => 'wpcom2',
3754
			'rand' => md5( mt_rand( 0, 999 ) . time() ),
3755
		);
3756
		$args     = wp_parse_args( $args, $defaults );
3757
		/**
3758
		 * Filter the URL used as the Stats tracking pixel.
3759
		 *
3760
		 * @since 2.3.2
3761
		 *
3762
		 * @param string $url Base URL used as the Stats tracking pixel.
3763
		 */
3764
		$base_url = apply_filters(
3765
			'jetpack_stats_base_url',
3766
			'https://pixel.wp.com/g.gif'
3767
		);
3768
		$url      = add_query_arg( $args, $base_url );
3769
		return $url;
3770
	}
3771
3772
	static function translate_current_user_to_role() {
3773
		foreach ( self::$capability_translations as $role => $cap ) {
3774
			if ( current_user_can( $role ) || current_user_can( $cap ) ) {
3775
				return $role;
3776
			}
3777
		}
3778
3779
		return false;
3780
	}
3781
3782
	static function translate_role_to_cap( $role ) {
3783
		if ( ! isset( self::$capability_translations[$role] ) ) {
3784
			return false;
3785
		}
3786
3787
		return self::$capability_translations[$role];
3788
	}
3789
3790
	static function sign_role( $role ) {
3791
		if ( ! $user_id = (int) get_current_user_id() ) {
3792
			return false;
3793
		}
3794
3795
		$token = Jetpack_Data::get_access_token();
3796
		if ( ! $token || is_wp_error( $token ) ) {
3797
			return false;
3798
		}
3799
3800
		return $role . ':' . hash_hmac( 'md5', "{$role}|{$user_id}", $token->secret );
3801
	}
3802
3803
3804
	/**
3805
	 * Builds a URL to the Jetpack connection auth page
3806
	 *
3807
	 * @since 3.9.5
3808
	 *
3809
	 * @param bool $raw If true, URL will not be escaped.
3810
	 * @param bool|string $redirect If true, will redirect back to Jetpack wp-admin landing page after connection.
3811
	 *                              If string, will be a custom redirect.
3812
	 * @param bool|string $from If not false, adds 'from=$from' param to the connect URL.
3813
	 *
3814
	 * @return string Connect URL
3815
	 */
3816
	function build_connect_url( $raw = false, $redirect = false, $from = false ) {
3817
		if ( ! Jetpack_Options::get_option( 'blog_token' ) || ! Jetpack_Options::get_option( 'id' ) ) {
3818
			$url = Jetpack::nonce_url_no_esc( Jetpack::admin_url( 'action=register' ), 'jetpack-register' );
3819
			if( is_network_admin() ) {
3820
			    $url = add_query_arg( 'is_multisite', network_admin_url(
3821
			    'admin.php?page=jetpack-settings' ), $url );
3822
			}
3823
		} else {
3824
			if ( defined( 'JETPACK__GLOTPRESS_LOCALES_PATH' ) && include_once JETPACK__GLOTPRESS_LOCALES_PATH ) {
3825
				$gp_locale = GP_Locales::by_field( 'wp_locale', get_locale() );
3826
			}
3827
3828
			$role = self::translate_current_user_to_role();
3829
			$signed_role = self::sign_role( $role );
3830
3831
			$user = wp_get_current_user();
3832
3833
			$jetpack_admin_page = esc_url_raw( admin_url( 'admin.php?page=jetpack' ) );
3834
			$redirect = $redirect
3835
				? wp_validate_redirect( esc_url_raw( $redirect ), $jetpack_admin_page )
3836
				: $jetpack_admin_page;
3837
3838
			if( isset( $_REQUEST['is_multisite'] ) ) {
3839
				$redirect = Jetpack_Network::init()->get_url( 'network_admin_page' );
3840
			}
3841
3842
			$secrets = Jetpack::init()->generate_secrets( 'authorize' );
3843
			@list( $secret ) = explode( ':', $secrets );
3844
3845
			$site_icon = ( function_exists( 'has_site_icon') && has_site_icon() )
3846
				? get_site_icon_url()
3847
				: false;
3848
3849
			$args = urlencode_deep(
3850
				array(
3851
					'response_type' => 'code',
3852
					'client_id'     => Jetpack_Options::get_option( 'id' ),
3853
					'redirect_uri'  => add_query_arg(
3854
						array(
3855
							'action'   => 'authorize',
3856
							'_wpnonce' => wp_create_nonce( "jetpack-authorize_{$role}_{$redirect}" ),
3857
							'redirect' => urlencode( $redirect ),
3858
						),
3859
						esc_url( admin_url( 'admin.php?page=jetpack' ) )
3860
					),
3861
					'state'         => $user->ID,
3862
					'scope'         => $signed_role,
3863
					'user_email'    => $user->user_email,
3864
					'user_login'    => $user->user_login,
3865
					'is_active'     => Jetpack::is_active(),
3866
					'jp_version'    => JETPACK__VERSION,
3867
					'auth_type'     => 'calypso',
3868
					'secret'        => $secret,
3869
					'locale'        => isset( $gp_locale->slug ) ? $gp_locale->slug : '',
0 ignored issues
show
The variable $gp_locale does not seem to be defined for all execution paths leading up to this point.

If you define a variable conditionally, it can happen that it is not defined for all execution paths.

Let’s take a look at an example:

function myFunction($a) {
    switch ($a) {
        case 'foo':
            $x = 1;
            break;

        case 'bar':
            $x = 2;
            break;
    }

    // $x is potentially undefined here.
    echo $x;
}

In the above example, the variable $x is defined if you pass “foo” or “bar” as argument for $a. However, since the switch statement has no default case statement, if you pass any other value, the variable $x would be undefined.

Available Fixes

  1. Check for existence of the variable explicitly:

    function myFunction($a) {
        switch ($a) {
            case 'foo':
                $x = 1;
                break;
    
            case 'bar':
                $x = 2;
                break;
        }
    
        if (isset($x)) { // Make sure it's always set.
            echo $x;
        }
    }
    
  2. Define a default value for the variable:

    function myFunction($a) {
        $x = ''; // Set a default which gets overridden for certain paths.
        switch ($a) {
            case 'foo':
                $x = 1;
                break;
    
            case 'bar':
                $x = 2;
                break;
        }
    
        echo $x;
    }
    
  3. Add a value for the missing path:

    function myFunction($a) {
        switch ($a) {
            case 'foo':
                $x = 1;
                break;
    
            case 'bar':
                $x = 2;
                break;
    
            // We add support for the missing case.
            default:
                $x = '';
                break;
        }
    
        echo $x;
    }
    
Loading history...
3870
					'blogname'      => get_option( 'blogname' ),
3871
					'site_url'      => site_url(),
3872
					'home_url'      => home_url(),
3873
					'site_icon'     => $site_icon,
3874
				)
3875
			);
3876
3877
			$url = add_query_arg( $args, Jetpack::api_url( 'authorize' ) );
3878
		}
3879
3880
		if ( $from ) {
3881
			$url = add_query_arg( 'from', $from, $url );
3882
		}
3883
3884
		if ( isset( $_GET['calypso_env'] ) ) {
3885
			$url = add_query_arg( 'calypso_env', sanitize_key( $_GET['calypso_env'] ), $url );
3886
		}
3887
3888
		return $raw ? $url : esc_url( $url );
3889
	}
3890
3891
	function build_reconnect_url( $raw = false ) {
3892
		$url = wp_nonce_url( Jetpack::admin_url( 'action=reconnect' ), 'jetpack-reconnect' );
3893
		return $raw ? $url : esc_url( $url );
3894
	}
3895
3896
	public static function admin_url( $args = null ) {
3897
		$args = wp_parse_args( $args, array( 'page' => 'jetpack' ) );
3898
		$url = add_query_arg( $args, admin_url( 'admin.php' ) );
3899
		return $url;
3900
	}
3901
3902
	public static function nonce_url_no_esc( $actionurl, $action = -1, $name = '_wpnonce' ) {
3903
		$actionurl = str_replace( '&amp;', '&', $actionurl );
3904
		return add_query_arg( $name, wp_create_nonce( $action ), $actionurl );
3905
	}
3906
3907
	function dismiss_jetpack_notice() {
3908
3909
		if ( ! isset( $_GET['jetpack-notice'] ) ) {
3910
			return;
3911
		}
3912
3913
		switch( $_GET['jetpack-notice'] ) {
3914
			case 'dismiss':
3915
				if ( check_admin_referer( 'jetpack-deactivate' ) && ! is_plugin_active_for_network( plugin_basename( JETPACK__PLUGIN_DIR . 'jetpack.php' ) ) ) {
3916
3917
					require_once ABSPATH . 'wp-admin/includes/plugin.php';
3918
					deactivate_plugins( JETPACK__PLUGIN_DIR . 'jetpack.php', false, false );
3919
					wp_safe_redirect( admin_url() . 'plugins.php?deactivate=true&plugin_status=all&paged=1&s=' );
3920
				}
3921
				break;
3922 View Code Duplication
			case 'jetpack-manage-opt-out':
3923
3924
				if ( check_admin_referer( 'jetpack_manage_banner_opt_out' ) ) {
3925
					// Don't show the banner again
3926
3927
					Jetpack_Options::update_option( 'dismissed_manage_banner', true );
3928
					// redirect back to the page that had the notice
3929
					if ( wp_get_referer() ) {
3930
						wp_safe_redirect( wp_get_referer() );
3931
					} else {
3932
						// Take me to Jetpack
3933
						wp_safe_redirect( admin_url( 'admin.php?page=jetpack' ) );
3934
					}
3935
				}
3936
				break;
3937 View Code Duplication
			case 'jetpack-protect-multisite-opt-out':
3938
3939
				if ( check_admin_referer( 'jetpack_protect_multisite_banner_opt_out' ) ) {
3940
					// Don't show the banner again
3941
3942
					update_site_option( 'jetpack_dismissed_protect_multisite_banner', true );
3943
					// redirect back to the page that had the notice
3944
					if ( wp_get_referer() ) {
3945
						wp_safe_redirect( wp_get_referer() );
3946
					} else {
3947
						// Take me to Jetpack
3948
						wp_safe_redirect( admin_url( 'admin.php?page=jetpack' ) );
3949
					}
3950
				}
3951
				break;
3952
			case 'jetpack-manage-opt-in':
3953
				if ( check_admin_referer( 'jetpack_manage_banner_opt_in' ) ) {
3954
					// This makes sure that we are redirect to jetpack home so that we can see the Success Message.
3955
3956
					$redirection_url = Jetpack::admin_url();
3957
					remove_action( 'jetpack_pre_activate_module',   array( Jetpack_Admin::init(), 'fix_redirect' ) );
3958
3959
					// Don't redirect form the Jetpack Setting Page
3960
					$referer_parsed = parse_url ( wp_get_referer() );
3961
					// check that we do have a wp_get_referer and the query paramater is set orderwise go to the Jetpack Home
3962
					if ( isset( $referer_parsed['query'] ) && false !== strpos( $referer_parsed['query'], 'page=jetpack_modules' ) ) {
3963
						// Take the user to Jetpack home except when on the setting page
3964
						$redirection_url = wp_get_referer();
3965
						add_action( 'jetpack_pre_activate_module',   array( Jetpack_Admin::init(), 'fix_redirect' ) );
3966
					}
3967
					// Also update the JSON API FULL MANAGEMENT Option
3968
					Jetpack::activate_module( 'manage', false, false );
3969
3970
					// Special Message when option in.
3971
					Jetpack::state( 'optin-manage', 'true' );
3972
					// Activate the Module if not activated already
3973
3974
					// Redirect properly
3975
					wp_safe_redirect( $redirection_url );
3976
3977
				}
3978
				break;
3979
		}
3980
	}
3981
3982
	function debugger_page() {
3983
		nocache_headers();
3984
		if ( ! current_user_can( 'manage_options' ) ) {
3985
			die( '-1' );
3986
		}
3987
		Jetpack_Debugger::jetpack_debug_display_handler();
3988
		exit;
3989
	}
3990
3991
	public static function admin_screen_configure_module( $module_id ) {
3992
3993
		// User that doesn't have 'jetpack_configure_modules' will never end up here since Jetpack Landing Page woun't let them.
3994
		if ( ! in_array( $module_id, Jetpack::get_active_modules() ) && current_user_can( 'manage_options' ) ) {
3995
			if ( has_action( 'display_activate_module_setting_' . $module_id ) ) {
3996
				/**
3997
				 * Fires to diplay a custom module activation screen.
3998
				 *
3999
				 * To add a module actionation screen use Jetpack::module_configuration_activation_screen method.
4000
				 * Example: Jetpack::module_configuration_activation_screen( 'manage', array( $this, 'manage_activate_screen' ) );
4001
				 *
4002
				 * @module manage
4003
				 *
4004
				 * @since 3.8.0
4005
				 *
4006
				 * @param int $module_id Module ID.
4007
				 */
4008
				do_action( 'display_activate_module_setting_' . $module_id );
4009
			} else {
4010
				self::display_activate_module_link( $module_id );
4011
			}
4012
4013
			return false;
4014
		} ?>
4015
4016
		<div id="jp-settings-screen" style="position: relative">
4017
			<h3>
4018
			<?php
4019
				$module = Jetpack::get_module( $module_id );
4020
				echo '<a href="' . Jetpack::admin_url( 'page=jetpack_modules' ) . '">' . __( 'Jetpack by WordPress.com', 'jetpack' ) . '</a> &rarr; ';
4021
				printf( __( 'Configure %s', 'jetpack' ), $module['name'] );
4022
			?>
4023
			</h3>
4024
			<?php
4025
				/**
4026
				 * Fires within the displayed message when a feature configuation is updated.
4027
				 *
4028
				 * @since 3.4.0
4029
				 *
4030
				 * @param int $module_id Module ID.
4031
				 */
4032
				do_action( 'jetpack_notices_update_settings', $module_id );
4033
				/**
4034
				 * Fires when a feature configuation screen is loaded.
4035
				 * The dynamic part of the hook, $module_id, is the module ID.
4036
				 *
4037
				 * @since 1.1.0
4038
				 */
4039
				do_action( 'jetpack_module_configuration_screen_' . $module_id );
4040
			?>
4041
		</div><?php
4042
	}
4043
4044
	/**
4045
	 * Display link to activate the module to see the settings screen.
4046
	 * @param  string $module_id
4047
	 * @return null
4048
	 */
4049
	public static function display_activate_module_link( $module_id ) {
4050
4051
		$info =  Jetpack::get_module( $module_id );
4052
		$extra = '';
4053
		$activate_url = wp_nonce_url(
4054
				Jetpack::admin_url(
4055
					array(
4056
						'page'   => 'jetpack',
4057
						'action' => 'activate',
4058
						'module' => $module_id,
4059
					)
4060
				),
4061
				"jetpack_activate-$module_id"
4062
			);
4063
4064
		?>
4065
4066
		<div class="wrap configure-module">
4067
			<div id="jp-settings-screen">
4068
				<?php
4069
				if ( $module_id == 'json-api' ) {
4070
4071
					$info['name'] = esc_html__( 'Activate Site Management and JSON API', 'jetpack' );
4072
4073
					$activate_url = Jetpack::init()->opt_in_jetpack_manage_url();
4074
4075
					$info['description'] = sprintf( __( 'Manage your multiple Jetpack sites from our centralized dashboard at wordpress.com/sites. <a href="%s" target="_blank">Learn more</a>.', 'jetpack' ), 'https://jetpack.com/support/site-management' );
4076
4077
					// $extra = __( 'To use Site Management, you need to first activate JSON API to allow remote management of your site. ', 'jetpack' );
4078
				} ?>
4079
4080
				<h3><?php echo esc_html( $info['name'] ); ?></h3>
4081
				<div class="narrow">
4082
					<p><?php echo  $info['description']; ?></p>
4083
					<?php if( $extra ) { ?>
4084
					<p><?php echo esc_html( $extra ); ?></p>
4085
					<?php } ?>
4086
					<p>
4087
						<?php
4088
						if( wp_get_referer() ) {
4089
							printf( __( '<a class="button-primary" href="%s">Activate Now</a> or <a href="%s" >return to previous page</a>.', 'jetpack' ) , $activate_url, wp_get_referer() );
4090
						} else {
4091
							printf( __( '<a class="button-primary" href="%s">Activate Now</a>', 'jetpack' ) , $activate_url  );
4092
						} ?>
4093
					</p>
4094
				</div>
4095
4096
			</div>
4097
		</div>
4098
4099
		<?php
4100
	}
4101
4102
	public static function sort_modules( $a, $b ) {
4103
		if ( $a['sort'] == $b['sort'] )
4104
			return 0;
4105
4106
		return ( $a['sort'] < $b['sort'] ) ? -1 : 1;
4107
	}
4108
4109
	function ajax_recheck_ssl() {
4110
		check_ajax_referer( 'recheck-ssl', 'ajax-nonce' );
4111
		$result = Jetpack::permit_ssl( true );
4112
		wp_send_json( array(
4113
			'enabled' => $result,
4114
			'message' => get_transient( 'jetpack_https_test_message' )
4115
		) );
4116
	}
4117
4118
/* Client API */
4119
4120
	/**
4121
	 * Returns the requested Jetpack API URL
4122
	 *
4123
	 * @return string
4124
	 */
4125
	public static function api_url( $relative_url ) {
4126
		return trailingslashit( JETPACK__API_BASE . $relative_url  ) . JETPACK__API_VERSION . '/';
4127
	}
4128
4129
	/**
4130
	 * Some hosts disable the OpenSSL extension and so cannot make outgoing HTTPS requsets
4131
	 */
4132
	public static function fix_url_for_bad_hosts( $url ) {
4133
		if ( 0 !== strpos( $url, 'https://' ) ) {
4134
			return $url;
4135
		}
4136
4137
		switch ( JETPACK_CLIENT__HTTPS ) {
4138
			case 'ALWAYS' :
4139
				return $url;
4140
			case 'NEVER' :
4141
				return set_url_scheme( $url, 'http' );
4142
			// default : case 'AUTO' :
4143
		}
4144
4145
		// we now return the unmodified SSL URL by default, as a security precaution
4146
		return $url;
4147
	}
4148
4149
	/**
4150
	 * Checks to see if the URL is using SSL to connect with Jetpack
4151
	 *
4152
	 * @since 2.3.3
4153
	 * @return boolean
4154
	 */
4155
	public static function permit_ssl( $force_recheck = false ) {
4156
		// Do some fancy tests to see if ssl is being supported
4157
		if ( $force_recheck || false === ( $ssl = get_transient( 'jetpack_https_test' ) ) ) {
4158
			$message = '';
4159
			if ( 'https' !== substr( JETPACK__API_BASE, 0, 5 ) ) {
4160
				$ssl = 0;
4161
			} else {
4162
				switch ( JETPACK_CLIENT__HTTPS ) {
4163
					case 'NEVER':
4164
						$ssl = 0;
4165
						$message = __( 'JETPACK_CLIENT__HTTPS is set to NEVER', 'jetpack' );
4166
						break;
4167
					case 'ALWAYS':
4168
					case 'AUTO':
4169
					default:
4170
						$ssl = 1;
4171
						break;
4172
				}
4173
4174
				// If it's not 'NEVER', test to see
4175
				if ( $ssl ) {
4176
					if ( ! wp_http_supports( array( 'ssl' => true ) ) ) {
4177
						$ssl = 0;
4178
						$message = __( 'WordPress reports no SSL support', 'jetpack' );
4179
					} else {
4180
						$response = wp_remote_get( JETPACK__API_BASE . 'test/1/' );
4181
						if ( is_wp_error( $response ) ) {
4182
							$ssl = 0;
4183
							$message = __( 'WordPress reports no SSL support', 'jetpack' );
4184
						} elseif ( 'OK' !== wp_remote_retrieve_body( $response ) ) {
4185
							$ssl = 0;
4186
							$message = __( 'Response was not OK: ', 'jetpack' ) . wp_remote_retrieve_body( $response );
4187
						}
4188
					}
4189
				}
4190
			}
4191
			set_transient( 'jetpack_https_test', $ssl, DAY_IN_SECONDS );
4192
			set_transient( 'jetpack_https_test_message', $message, DAY_IN_SECONDS );
4193
		}
4194
4195
		return (bool) $ssl;
4196
	}
4197
4198
	/*
4199
	 * Displays an admin_notice, alerting the user to their JETPACK_CLIENT__HTTPS constant being 'AUTO' but SSL isn't working.
4200
	 */
4201
	public function alert_auto_ssl_fail() {
4202
		if ( ! current_user_can( 'manage_options' ) )
4203
			return;
4204
4205
		$ajax_nonce = wp_create_nonce( 'recheck-ssl' );
4206
		?>
4207
4208
		<div id="jetpack-ssl-warning" class="error jp-identity-crisis">
4209
			<div class="jp-banner__content">
4210
				<h2><?php _e( 'Outbound HTTPS not working', 'jetpack' ); ?></h2>
4211
				<p><?php _e( 'Your site could not connect to WordPress.com via HTTPS. This could be due to any number of reasons, including faulty SSL certificates, misconfigured or missing SSL libraries, or network issues.', 'jetpack' ); ?></p>
4212
				<p>
4213
					<?php _e( 'Jetpack will re-test for HTTPS support once a day, but you can click here to try again immediately: ', 'jetpack' ); ?>
4214
					<a href="#" id="jetpack-recheck-ssl-button"><?php _e( 'Try again', 'jetpack' ); ?></a>
4215
					<span id="jetpack-recheck-ssl-output"><?php echo get_transient( 'jetpack_https_test_message' ); ?></span>
4216
				</p>
4217
				<p>
4218
					<?php printf( __( 'For more help, try our <a href="%1$s">connection debugger</a> or <a href="%2$s" target="_blank">troubleshooting tips</a>.', 'jetpack' ),
4219
							esc_url( Jetpack::admin_url( array( 'page' => 'jetpack-debugger' )  ) ),
4220
							esc_url( 'https://jetpack.com/support/getting-started-with-jetpack/troubleshooting-tips/' ) ); ?>
4221
				</p>
4222
			</div>
4223
		</div>
4224
		<style>
4225
			#jetpack-recheck-ssl-output { margin-left: 5px; color: red; }
4226
		</style>
4227
		<script type="text/javascript">
4228
			jQuery( document ).ready( function( $ ) {
4229
				$( '#jetpack-recheck-ssl-button' ).click( function( e ) {
4230
					var $this = $( this );
4231
					$this.html( <?php echo json_encode( __( 'Checking', 'jetpack' ) ); ?> );
4232
					$( '#jetpack-recheck-ssl-output' ).html( '' );
4233
					e.preventDefault();
4234
					var data = { action: 'jetpack-recheck-ssl', 'ajax-nonce': '<?php echo $ajax_nonce; ?>' };
4235
					$.post( ajaxurl, data )
4236
					  .done( function( response ) {
4237
					  	if ( response.enabled ) {
4238
					  		$( '#jetpack-ssl-warning' ).hide();
4239
					  	} else {
4240
					  		this.html( <?php echo json_encode( __( 'Try again', 'jetpack' ) ); ?> );
4241
					  		$( '#jetpack-recheck-ssl-output' ).html( 'SSL Failed: ' + response.message );
4242
					  	}
4243
					  }.bind( $this ) );
4244
				} );
4245
			} );
4246
		</script>
4247
4248
		<?php
4249
	}
4250
4251
	/**
4252
	 * Returns the Jetpack XML-RPC API
4253
	 *
4254
	 * @return string
4255
	 */
4256
	public static function xmlrpc_api_url() {
4257
		$base = preg_replace( '#(https?://[^?/]+)(/?.*)?$#', '\\1', JETPACK__API_BASE );
4258
		return untrailingslashit( $base ) . '/xmlrpc.php';
4259
	}
4260
4261
	/**
4262
	 * Creates two secret tokens and the end of life timestamp for them.
4263
	 *
4264
	 * Note these tokens are unique per call, NOT static per site for connecting.
4265
	 *
4266
	 * @since 2.6
4267
	 * @return array
4268
	 */
4269
	public function generate_secrets( $action, $exp = 600 ) {
4270
	    $secret = wp_generate_password( 32, false ) // secret_1
4271
	    		. ':' . wp_generate_password( 32, false ) // secret_2
4272
	    		. ':' . ( time() + $exp ) // eol ( End of Life )
4273
	    		. ':' . get_current_user_id(); // ties the secrets to the current user
4274
		Jetpack_Options::update_option( $action, $secret );
4275
	    return Jetpack_Options::get_option( $action );
4276
	}
4277
4278
	/**
4279
	 * Builds the timeout limit for queries talking with the wpcom servers.
4280
	 *
4281
	 * Based on local php max_execution_time in php.ini
4282
	 *
4283
	 * @since 2.6
4284
	 * @return int
4285
	 **/
4286
	public function get_remote_query_timeout_limit() {
4287
	    $timeout = (int) ini_get( 'max_execution_time' );
4288
	    if ( ! $timeout ) // Ensure exec time set in php.ini
4289
		$timeout = 30;
4290
	    return intval( $timeout / 2 );
4291
	}
4292
4293
4294
	/**
4295
	 * Takes the response from the Jetpack register new site endpoint and
4296
	 * verifies it worked properly.
4297
	 *
4298
	 * @since 2.6
4299
	 * @return true or Jetpack_Error
4300
	 **/
4301
	public function validate_remote_register_response( $response ) {
4302
	    	if ( is_wp_error( $response ) ) {
4303
			return new Jetpack_Error( 'register_http_request_failed', $response->get_error_message() );
4304
		}
4305
4306
		$code   = wp_remote_retrieve_response_code( $response );
4307
		$entity = wp_remote_retrieve_body( $response );
4308
		if ( $entity )
4309
			$json = json_decode( $entity );
4310
		else
4311
			$json = false;
4312
4313
		$code_type = intval( $code / 100 );
4314
		if ( 5 == $code_type ) {
4315
			return new Jetpack_Error( 'wpcom_5??', sprintf( __( 'Error Details: %s', 'jetpack' ), $code ), $code );
4316
		} elseif ( 408 == $code ) {
4317
			return new Jetpack_Error( 'wpcom_408', sprintf( __( 'Error Details: %s', 'jetpack' ), $code ), $code );
4318
		} elseif ( ! empty( $json->error ) ) {
4319
			$error_description = isset( $json->error_description ) ? sprintf( __( 'Error Details: %s', 'jetpack' ), (string) $json->error_description ) : '';
4320
			return new Jetpack_Error( (string) $json->error, $error_description, $code );
4321
		} elseif ( 200 != $code ) {
4322
			return new Jetpack_Error( 'wpcom_bad_response', sprintf( __( 'Error Details: %s', 'jetpack' ), $code ), $code );
4323
		}
4324
4325
		// Jetpack ID error block
4326
		if ( empty( $json->jetpack_id ) ) {
4327
			return new Jetpack_Error( 'jetpack_id', sprintf( __( 'Error Details: Jetpack ID is empty. Do not publicly post this error message! %s', 'jetpack' ), $entity ), $entity );
4328
		} elseif ( ! is_scalar( $json->jetpack_id ) ) {
4329
			return new Jetpack_Error( 'jetpack_id', sprintf( __( 'Error Details: Jetpack ID is not a scalar. Do not publicly post this error message! %s', 'jetpack' ) , $entity ), $entity );
4330
		} elseif ( preg_match( '/[^0-9]/', $json->jetpack_id ) ) {
4331
			return new Jetpack_Error( 'jetpack_id', sprintf( __( 'Error Details: Jetpack ID begins with a numeral. Do not publicly post this error message! %s', 'jetpack' ) , $entity ), $entity );
4332
		}
4333
4334
	    return true;
4335
	}
4336
	/**
4337
	 * @return bool|WP_Error
4338
	 */
4339
	public static function register() {
4340
		add_action( 'pre_update_jetpack_option_register', array( 'Jetpack_Options', 'delete_option' ) );
4341
		$secrets = Jetpack::init()->generate_secrets( 'register' );
4342
4343
		@list( $secret_1, $secret_2, $secret_eol ) = explode( ':', $secrets );
4344 View Code Duplication
		if ( empty( $secret_1 ) || empty( $secret_2 ) || empty( $secret_eol ) || $secret_eol < time() ) {
4345
			return new Jetpack_Error( 'missing_secrets' );
4346
		}
4347
4348
		$timeout = Jetpack::init()->get_remote_query_timeout_limit();
4349
4350
		$gmt_offset = get_option( 'gmt_offset' );
4351
		if ( ! $gmt_offset ) {
4352
			$gmt_offset = 0;
4353
		}
4354
4355
		$stats_options = get_option( 'stats_options' );
4356
		$stats_id = isset($stats_options['blog_id']) ? $stats_options['blog_id'] : null;
4357
4358
		$args = array(
4359
			'method'  => 'POST',
4360
			'body'    => array(
4361
				'siteurl'         => site_url(),
4362
				'home'            => home_url(),
4363
				'gmt_offset'      => $gmt_offset,
4364
				'timezone_string' => (string) get_option( 'timezone_string' ),
4365
				'site_name'       => (string) get_option( 'blogname' ),
4366
				'secret_1'        => $secret_1,
4367
				'secret_2'        => $secret_2,
4368
				'site_lang'       => get_locale(),
4369
				'timeout'         => $timeout,
4370
				'stats_id'        => $stats_id,
4371
				'state'           => get_current_user_id(),
4372
			),
4373
			'headers' => array(
4374
				'Accept' => 'application/json',
4375
			),
4376
			'timeout' => $timeout,
4377
		);
4378
		$response = Jetpack_Client::_wp_remote_request( Jetpack::fix_url_for_bad_hosts( Jetpack::api_url( 'register' ) ), $args, true );
4379
4380
4381
		// Make sure the response is valid and does not contain any Jetpack errors
4382
		$valid_response = Jetpack::init()->validate_remote_register_response( $response );
4383
		if( is_wp_error( $valid_response ) || !$valid_response ) {
4384
		    return $valid_response;
4385
		}
4386
4387
		// Grab the response values to work with
4388
		$code   = wp_remote_retrieve_response_code( $response );
4389
		$entity = wp_remote_retrieve_body( $response );
4390
4391
		if ( $entity )
4392
			$json = json_decode( $entity );
4393
		else
4394
			$json = false;
4395
4396 View Code Duplication
		if ( empty( $json->jetpack_secret ) || ! is_string( $json->jetpack_secret ) )
4397
			return new Jetpack_Error( 'jetpack_secret', '', $code );
4398
4399
		if ( isset( $json->jetpack_public ) ) {
4400
			$jetpack_public = (int) $json->jetpack_public;
4401
		} else {
4402
			$jetpack_public = false;
4403
		}
4404
4405
		Jetpack_Options::update_options(
4406
			array(
4407
				'id'         => (int)    $json->jetpack_id,
4408
				'blog_token' => (string) $json->jetpack_secret,
4409
				'public'     => $jetpack_public,
4410
			)
4411
		);
4412
4413
		/**
4414
		 * Fires when a site is registered on WordPress.com.
4415
		 *
4416
		 * @since 3.7.0
4417
		 *
4418
		 * @param int $json->jetpack_id Jetpack Blog ID.
4419
		 * @param string $json->jetpack_secret Jetpack Blog Token.
4420
		 * @param int|bool $jetpack_public Is the site public.
4421
		 */
4422
		do_action( 'jetpack_site_registered', $json->jetpack_id, $json->jetpack_secret, $jetpack_public );
4423
4424
		// Initialize Jump Start for the first and only time.
4425
		if ( ! Jetpack_Options::get_option( 'jumpstart' ) ) {
4426
			Jetpack_Options::update_option( 'jumpstart', 'new_connection' );
4427
4428
			$jetpack = Jetpack::init();
4429
4430
			$jetpack->stat( 'jumpstart', 'unique-views' );
4431
			$jetpack->do_stats( 'server_side' );
4432
		};
4433
4434
		return true;
4435
	}
4436
4437
	/**
4438
	 * If the db version is showing something other that what we've got now, bump it to current.
4439
	 *
4440
	 * @return bool: True if the option was incorrect and updated, false if nothing happened.
4441
	 */
4442
	public static function maybe_set_version_option() {
4443
		list( $version ) = explode( ':', Jetpack_Options::get_option( 'version' ) );
4444
		if ( JETPACK__VERSION != $version ) {
4445
			Jetpack_Options::update_option( 'version', JETPACK__VERSION . ':' . time() );
4446
4447
			if ( version_compare( JETPACK__VERSION, $version, '>' ) ) {
4448
				/** This action is documented in class.jetpack.php */
4449
				do_action( 'updating_jetpack_version', JETPACK__VERSION, $version );
4450
			}
4451
4452
			return true;
4453
		}
4454
		return false;
4455
	}
4456
4457
/* Client Server API */
4458
4459
	/**
4460
	 * Loads the Jetpack XML-RPC client
4461
	 */
4462
	public static function load_xml_rpc_client() {
4463
		require_once ABSPATH . WPINC . '/class-IXR.php';
4464
		require_once JETPACK__PLUGIN_DIR . 'class.jetpack-ixr-client.php';
4465
	}
4466
4467
	function verify_xml_rpc_signature() {
4468
		if ( $this->xmlrpc_verification ) {
4469
			return $this->xmlrpc_verification;
4470
		}
4471
4472
		// It's not for us
4473
		if ( ! isset( $_GET['token'] ) || empty( $_GET['signature'] ) ) {
4474
			return false;
4475
		}
4476
4477
		@list( $token_key, $version, $user_id ) = explode( ':', $_GET['token'] );
4478
		if (
4479
			empty( $token_key )
4480
		||
4481
			empty( $version ) || strval( JETPACK__API_VERSION ) !== $version
4482
		) {
4483
			return false;
4484
		}
4485
4486
		if ( '0' === $user_id ) {
4487
			$token_type = 'blog';
4488
			$user_id = 0;
4489
		} else {
4490
			$token_type = 'user';
4491
			if ( empty( $user_id ) || ! ctype_digit( $user_id ) ) {
4492
				return false;
4493
			}
4494
			$user_id = (int) $user_id;
4495
4496
			$user = new WP_User( $user_id );
4497
			if ( ! $user || ! $user->exists() ) {
4498
				return false;
4499
			}
4500
		}
4501
4502
		$token = Jetpack_Data::get_access_token( $user_id );
4503
		if ( ! $token ) {
4504
			return false;
4505
		}
4506
4507
		$token_check = "$token_key.";
4508
		if ( ! hash_equals( substr( $token->secret, 0, strlen( $token_check ) ), $token_check ) ) {
4509
			return false;
4510
		}
4511
4512
		require_once JETPACK__PLUGIN_DIR . 'class.jetpack-signature.php';
4513
4514
		$jetpack_signature = new Jetpack_Signature( $token->secret, (int) Jetpack_Options::get_option( 'time_diff' ) );
4515
		if ( isset( $_POST['_jetpack_is_multipart'] ) ) {
4516
			$post_data   = $_POST;
4517
			$file_hashes = array();
4518
			foreach ( $post_data as $post_data_key => $post_data_value ) {
4519
				if ( 0 !== strpos( $post_data_key, '_jetpack_file_hmac_' ) ) {
4520
					continue;
4521
				}
4522
				$post_data_key = substr( $post_data_key, strlen( '_jetpack_file_hmac_' ) );
4523
				$file_hashes[$post_data_key] = $post_data_value;
4524
			}
4525
4526
			foreach ( $file_hashes as $post_data_key => $post_data_value ) {
4527
				unset( $post_data["_jetpack_file_hmac_{$post_data_key}"] );
4528
				$post_data[$post_data_key] = $post_data_value;
4529
			}
4530
4531
			ksort( $post_data );
4532
4533
			$body = http_build_query( stripslashes_deep( $post_data ) );
4534
		} elseif ( is_null( $this->HTTP_RAW_POST_DATA ) ) {
4535
			$body = file_get_contents( 'php://input' );
4536
		} else {
4537
			$body = null;
4538
		}
4539
		$signature = $jetpack_signature->sign_current_request(
4540
			array( 'body' => is_null( $body ) ? $this->HTTP_RAW_POST_DATA : $body, )
4541
		);
4542
4543
		if ( ! $signature ) {
4544
			return false;
4545
		} else if ( is_wp_error( $signature ) ) {
4546
			return $signature;
4547
		} else if ( ! hash_equals( $signature, $_GET['signature'] ) ) {
4548
			return false;
4549
		}
4550
4551
		$timestamp = (int) $_GET['timestamp'];
4552
		$nonce     = stripslashes( (string) $_GET['nonce'] );
4553
4554
		if ( ! $this->add_nonce( $timestamp, $nonce ) ) {
4555
			return false;
4556
		}
4557
4558
		$this->xmlrpc_verification = array(
4559
			'type'    => $token_type,
4560
			'user_id' => $token->external_user_id,
4561
		);
4562
4563
		return $this->xmlrpc_verification;
4564
	}
4565
4566
	/**
4567
	 * Authenticates XML-RPC and other requests from the Jetpack Server
4568
	 */
4569
	function authenticate_jetpack( $user, $username, $password ) {
4570
		if ( is_a( $user, 'WP_User' ) ) {
4571
			return $user;
4572
		}
4573
4574
		$token_details = $this->verify_xml_rpc_signature();
4575
4576
		if ( ! $token_details || is_wp_error( $token_details ) ) {
4577
			return $user;
4578
		}
4579
4580
		if ( 'user' !== $token_details['type'] ) {
4581
			return $user;
4582
		}
4583
4584
		if ( ! $token_details['user_id'] ) {
4585
			return $user;
4586
		}
4587
4588
		nocache_headers();
4589
4590
		return new WP_User( $token_details['user_id'] );
4591
	}
4592
4593
	function add_nonce( $timestamp, $nonce ) {
4594
		global $wpdb;
4595
		static $nonces_used_this_request = array();
4596
4597
		if ( isset( $nonces_used_this_request["$timestamp:$nonce"] ) ) {
4598
			return $nonces_used_this_request["$timestamp:$nonce"];
4599
		}
4600
4601
		// This should always have gone through Jetpack_Signature::sign_request() first to check $timestamp an $nonce
4602
		$timestamp = (int) $timestamp;
4603
		$nonce     = esc_sql( $nonce );
4604
4605
		// Raw query so we can avoid races: add_option will also update
4606
		$show_errors = $wpdb->show_errors( false );
4607
4608
		$old_nonce = $wpdb->get_row(
4609
			$wpdb->prepare( "SELECT * FROM `$wpdb->options` WHERE option_name = %s", "jetpack_nonce_{$timestamp}_{$nonce}" )
4610
		);
4611
4612
		if ( is_null( $old_nonce ) ) {
4613
			$return = $wpdb->query(
4614
				$wpdb->prepare(
4615
					"INSERT INTO `$wpdb->options` (`option_name`, `option_value`, `autoload`) VALUES (%s, %s, %s)",
4616
					"jetpack_nonce_{$timestamp}_{$nonce}",
4617
					time(),
4618
					'no'
4619
				)
4620
			);
4621
		} else {
4622
			$return = false;
4623
		}
4624
4625
		$wpdb->show_errors( $show_errors );
4626
4627
		$nonces_used_this_request["$timestamp:$nonce"] = $return;
4628
4629
		return $return;
4630
	}
4631
4632
	/**
4633
	 * In some setups, $HTTP_RAW_POST_DATA can be emptied during some IXR_Server paths since it is passed by reference to various methods.
4634
	 * Capture it here so we can verify the signature later.
4635
	 */
4636
	function xmlrpc_methods( $methods ) {
4637
		$this->HTTP_RAW_POST_DATA = $GLOBALS['HTTP_RAW_POST_DATA'];
4638
		return $methods;
4639
	}
4640
4641
	function public_xmlrpc_methods( $methods ) {
4642
		if ( array_key_exists( 'wp.getOptions', $methods ) ) {
4643
			$methods['wp.getOptions'] = array( $this, 'jetpack_getOptions' );
4644
		}
4645
		return $methods;
4646
	}
4647
4648
	function jetpack_getOptions( $args ) {
4649
		global $wp_xmlrpc_server;
4650
4651
		$wp_xmlrpc_server->escape( $args );
4652
4653
		$username	= $args[1];
4654
		$password	= $args[2];
4655
4656
		if ( !$user = $wp_xmlrpc_server->login($username, $password) ) {
4657
			return $wp_xmlrpc_server->error;
4658
		}
4659
4660
		$options = array();
4661
		$user_data = $this->get_connected_user_data();
4662
		if ( is_array( $user_data ) ) {
4663
			$options['jetpack_user_id'] = array(
4664
				'desc'          => __( 'The WP.com user ID of the connected user', 'jetpack' ),
4665
				'readonly'      => true,
4666
				'value'         => $user_data['ID'],
4667
			);
4668
			$options['jetpack_user_login'] = array(
4669
				'desc'          => __( 'The WP.com username of the connected user', 'jetpack' ),
4670
				'readonly'      => true,
4671
				'value'         => $user_data['login'],
4672
			);
4673
			$options['jetpack_user_email'] = array(
4674
				'desc'          => __( 'The WP.com user email of the connected user', 'jetpack' ),
4675
				'readonly'      => true,
4676
				'value'         => $user_data['email'],
4677
			);
4678
			$options['jetpack_user_site_count'] = array(
4679
				'desc'          => __( 'The number of sites of the connected WP.com user', 'jetpack' ),
4680
				'readonly'      => true,
4681
				'value'         => $user_data['site_count'],
4682
			);
4683
		}
4684
		$wp_xmlrpc_server->blog_options = array_merge( $wp_xmlrpc_server->blog_options, $options );
4685
		$args = stripslashes_deep( $args );
4686
		return $wp_xmlrpc_server->wp_getOptions( $args );
4687
	}
4688
4689
	function xmlrpc_options( $options ) {
4690
		$jetpack_client_id = false;
4691
		if ( self::is_active() ) {
4692
			$jetpack_client_id = Jetpack_Options::get_option( 'id' );
4693
		}
4694
		$options['jetpack_version'] = array(
4695
				'desc'          => __( 'Jetpack Plugin Version', 'jetpack' ),
4696
				'readonly'      => true,
4697
				'value'         => JETPACK__VERSION,
4698
		);
4699
4700
		$options['jetpack_client_id'] = array(
4701
				'desc'          => __( 'The Client ID/WP.com Blog ID of this site', 'jetpack' ),
4702
				'readonly'      => true,
4703
				'value'         => $jetpack_client_id,
4704
		);
4705
		return $options;
4706
	}
4707
4708
	public static function clean_nonces( $all = false ) {
4709
		global $wpdb;
4710
4711
		$sql = "DELETE FROM `$wpdb->options` WHERE `option_name` LIKE %s";
4712
		if ( method_exists ( $wpdb , 'esc_like' ) ) {
4713
			$sql_args = array( $wpdb->esc_like( 'jetpack_nonce_' ) . '%' );
4714
		} else {
4715
			$sql_args = array( like_escape( 'jetpack_nonce_' ) . '%' );
4716
		}
4717
4718
		if ( true !== $all ) {
4719
			$sql .= ' AND CAST( `option_value` AS UNSIGNED ) < %d';
4720
			$sql_args[] = time() - 3600;
4721
		}
4722
4723
		$sql .= ' ORDER BY `option_id` LIMIT 100';
4724
4725
		$sql = $wpdb->prepare( $sql, $sql_args );
4726
4727
		for ( $i = 0; $i < 1000; $i++ ) {
4728
			if ( ! $wpdb->query( $sql ) ) {
4729
				break;
4730
			}
4731
		}
4732
	}
4733
4734
	/**
4735
	 * State is passed via cookies from one request to the next, but never to subsequent requests.
4736
	 * SET: state( $key, $value );
4737
	 * GET: $value = state( $key );
4738
	 *
4739
	 * @param string $key
4740
	 * @param string $value
4741
	 * @param bool $restate private
4742
	 */
4743
	public static function state( $key = null, $value = null, $restate = false ) {
4744
		static $state = array();
4745
		static $path, $domain;
4746
		if ( ! isset( $path ) ) {
4747
			require_once( ABSPATH . 'wp-admin/includes/plugin.php' );
4748
			$admin_url = Jetpack::admin_url();
4749
			$bits      = parse_url( $admin_url );
4750
4751
			if ( is_array( $bits ) ) {
4752
				$path   = ( isset( $bits['path'] ) ) ? dirname( $bits['path'] ) : null;
4753
				$domain = ( isset( $bits['host'] ) ) ? $bits['host'] : null;
4754
			} else {
4755
				$path = $domain = null;
4756
			}
4757
		}
4758
4759
		// Extract state from cookies and delete cookies
4760
		if ( isset( $_COOKIE[ 'jetpackState' ] ) && is_array( $_COOKIE[ 'jetpackState' ] ) ) {
4761
			$yum = $_COOKIE[ 'jetpackState' ];
4762
			unset( $_COOKIE[ 'jetpackState' ] );
4763
			foreach ( $yum as $k => $v ) {
4764
				if ( strlen( $v ) )
4765
					$state[ $k ] = $v;
4766
				setcookie( "jetpackState[$k]", false, 0, $path, $domain );
4767
			}
4768
		}
4769
4770
		if ( $restate ) {
4771
			foreach ( $state as $k => $v ) {
4772
				setcookie( "jetpackState[$k]", $v, 0, $path, $domain );
4773
			}
4774
			return;
4775
		}
4776
4777
		// Get a state variable
4778
		if ( isset( $key ) && ! isset( $value ) ) {
4779
			if ( array_key_exists( $key, $state ) )
4780
				return $state[ $key ];
4781
			return null;
4782
		}
4783
4784
		// Set a state variable
4785
		if ( isset ( $key ) && isset( $value ) ) {
4786
			if( is_array( $value ) && isset( $value[0] ) ) {
4787
				$value = $value[0];
4788
			}
4789
			$state[ $key ] = $value;
4790
			setcookie( "jetpackState[$key]", $value, 0, $path, $domain );
4791
		}
4792
	}
4793
4794
	public static function restate() {
4795
		Jetpack::state( null, null, true );
4796
	}
4797
4798
	public static function check_privacy( $file ) {
4799
		static $is_site_publicly_accessible = null;
4800
4801
		if ( is_null( $is_site_publicly_accessible ) ) {
4802
			$is_site_publicly_accessible = false;
4803
4804
			Jetpack::load_xml_rpc_client();
4805
			$rpc = new Jetpack_IXR_Client();
4806
4807
			$success = $rpc->query( 'jetpack.isSitePubliclyAccessible', home_url() );
4808
			if ( $success ) {
4809
				$response = $rpc->getResponse();
4810
				if ( $response ) {
4811
					$is_site_publicly_accessible = true;
4812
				}
4813
			}
4814
4815
			Jetpack_Options::update_option( 'public', (int) $is_site_publicly_accessible );
4816
		}
4817
4818
		if ( $is_site_publicly_accessible ) {
4819
			return;
4820
		}
4821
4822
		$module_slug = self::get_module_slug( $file );
4823
4824
		$privacy_checks = Jetpack::state( 'privacy_checks' );
4825
		if ( ! $privacy_checks ) {
4826
			$privacy_checks = $module_slug;
4827
		} else {
4828
			$privacy_checks .= ",$module_slug";
4829
		}
4830
4831
		Jetpack::state( 'privacy_checks', $privacy_checks );
4832
	}
4833
4834
	/**
4835
	 * Helper method for multicall XMLRPC.
4836
	 */
4837
	public static function xmlrpc_async_call() {
4838
		global $blog_id;
4839
		static $clients = array();
4840
4841
		$client_blog_id = is_multisite() ? $blog_id : 0;
4842
4843
		if ( ! isset( $clients[$client_blog_id] ) ) {
4844
			Jetpack::load_xml_rpc_client();
4845
			$clients[$client_blog_id] = new Jetpack_IXR_ClientMulticall( array( 'user_id' => JETPACK_MASTER_USER, ) );
4846
			if ( function_exists( 'ignore_user_abort' ) ) {
4847
				ignore_user_abort( true );
4848
			}
4849
			add_action( 'shutdown', array( 'Jetpack', 'xmlrpc_async_call' ) );
4850
		}
4851
4852
		$args = func_get_args();
4853
4854
		if ( ! empty( $args[0] ) ) {
4855
			call_user_func_array( array( $clients[$client_blog_id], 'addCall' ), $args );
4856
		} elseif ( is_multisite() ) {
4857
			foreach ( $clients as $client_blog_id => $client ) {
4858
				if ( ! $client_blog_id || empty( $client->calls ) ) {
4859
					continue;
4860
				}
4861
4862
				$switch_success = switch_to_blog( $client_blog_id, true );
4863
				if ( ! $switch_success ) {
4864
					continue;
4865
				}
4866
4867
				flush();
4868
				$client->query();
4869
4870
				restore_current_blog();
4871
			}
4872
		} else {
4873
			if ( isset( $clients[0] ) && ! empty( $clients[0]->calls ) ) {
4874
				flush();
4875
				$clients[0]->query();
4876
			}
4877
		}
4878
	}
4879
4880
	public static function staticize_subdomain( $url ) {
4881
4882
		// Extract hostname from URL
4883
		$host = parse_url( $url, PHP_URL_HOST );
4884
4885
		// Explode hostname on '.'
4886
		$exploded_host = explode( '.', $host );
4887
4888
		// Retrieve the name and TLD
4889
		if ( count( $exploded_host ) > 1 ) {
4890
			$name = $exploded_host[ count( $exploded_host ) - 2 ];
4891
			$tld = $exploded_host[ count( $exploded_host ) - 1 ];
4892
			// Rebuild domain excluding subdomains
4893
			$domain = $name . '.' . $tld;
4894
		} else {
4895
			$domain = $host;
4896
		}
4897
		// Array of Automattic domains
4898
		$domain_whitelist = array( 'wordpress.com', 'wp.com' );
4899
4900
		// Return $url if not an Automattic domain
4901
		if ( ! in_array( $domain, $domain_whitelist ) ) {
4902
			return $url;
4903
		}
4904
4905
		if ( is_ssl() ) {
4906
			return preg_replace( '|https?://[^/]++/|', 'https://s-ssl.wordpress.com/', $url );
4907
		}
4908
4909
		srand( crc32( basename( $url ) ) );
4910
		$static_counter = rand( 0, 2 );
4911
		srand(); // this resets everything that relies on this, like array_rand() and shuffle()
4912
4913
		return preg_replace( '|://[^/]+?/|', "://s$static_counter.wp.com/", $url );
4914
	}
4915
4916
/* JSON API Authorization */
4917
4918
	/**
4919
	 * Handles the login action for Authorizing the JSON API
4920
	 */
4921
	function login_form_json_api_authorization() {
4922
		$this->verify_json_api_authorization_request();
4923
4924
		add_action( 'wp_login', array( &$this, 'store_json_api_authorization_token' ), 10, 2 );
4925
4926
		add_action( 'login_message', array( &$this, 'login_message_json_api_authorization' ) );
4927
		add_action( 'login_form', array( &$this, 'preserve_action_in_login_form_for_json_api_authorization' ) );
4928
		add_filter( 'site_url', array( &$this, 'post_login_form_to_signed_url' ), 10, 3 );
4929
	}
4930
4931
	// Make sure the login form is POSTed to the signed URL so we can reverify the request
4932
	function post_login_form_to_signed_url( $url, $path, $scheme ) {
4933
		if ( 'wp-login.php' !== $path || ( 'login_post' !== $scheme && 'login' !== $scheme ) ) {
4934
			return $url;
4935
		}
4936
4937
		$parsed_url = parse_url( $url );
4938
		$url = strtok( $url, '?' );
4939
		$url = "$url?{$_SERVER['QUERY_STRING']}";
4940
		if ( ! empty( $parsed_url['query'] ) )
4941
			$url .= "&{$parsed_url['query']}";
4942
4943
		return $url;
4944
	}
4945
4946
	// Make sure the POSTed request is handled by the same action
4947
	function preserve_action_in_login_form_for_json_api_authorization() {
4948
		echo "<input type='hidden' name='action' value='jetpack_json_api_authorization' />\n";
4949
		echo "<input type='hidden' name='jetpack_json_api_original_query' value='" . esc_url( set_url_scheme( $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'] ) ) . "' />\n";
4950
	}
4951
4952
	// If someone logs in to approve API access, store the Access Code in usermeta
4953
	function store_json_api_authorization_token( $user_login, $user ) {
4954
		add_filter( 'login_redirect', array( &$this, 'add_token_to_login_redirect_json_api_authorization' ), 10, 3 );
4955
		add_filter( 'allowed_redirect_hosts', array( &$this, 'allow_wpcom_public_api_domain' ) );
4956
		$token = wp_generate_password( 32, false );
4957
		update_user_meta( $user->ID, 'jetpack_json_api_' . $this->json_api_authorization_request['client_id'], $token );
4958
	}
4959
4960
	// Add public-api.wordpress.com to the safe redirect whitelist - only added when someone allows API access
4961
	function allow_wpcom_public_api_domain( $domains ) {
4962
		$domains[] = 'public-api.wordpress.com';
4963
		return $domains;
4964
	}
4965
4966
	// Add the Access Code details to the public-api.wordpress.com redirect
4967
	function add_token_to_login_redirect_json_api_authorization( $redirect_to, $original_redirect_to, $user ) {
4968
		return add_query_arg(
4969
			urlencode_deep(
4970
				array(
4971
					'jetpack-code'    => get_user_meta( $user->ID, 'jetpack_json_api_' . $this->json_api_authorization_request['client_id'], true ),
4972
					'jetpack-user-id' => (int) $user->ID,
4973
					'jetpack-state'   => $this->json_api_authorization_request['state'],
4974
				)
4975
			),
4976
			$redirect_to
4977
		);
4978
	}
4979
4980
	// Verifies the request by checking the signature
4981
	function verify_json_api_authorization_request() {
4982
		require_once JETPACK__PLUGIN_DIR . 'class.jetpack-signature.php';
4983
4984
		$token = Jetpack_Data::get_access_token( JETPACK_MASTER_USER );
4985
		if ( ! $token || empty( $token->secret ) ) {
4986
			wp_die( __( 'You must connect your Jetpack plugin to WordPress.com to use this feature.' , 'jetpack' ) );
4987
		}
4988
4989
		$die_error = __( 'Someone may be trying to trick you into giving them access to your site.  Or it could be you just encountered a bug :).  Either way, please close this window.', 'jetpack' );
4990
4991
		$jetpack_signature = new Jetpack_Signature( $token->secret, (int) Jetpack_Options::get_option( 'time_diff' ) );
4992
4993
		if ( isset( $_POST['jetpack_json_api_original_query'] ) ) {
4994
			$signature = $jetpack_signature->sign_request( $_GET['token'], $_GET['timestamp'], $_GET['nonce'], '', 'GET', $_POST['jetpack_json_api_original_query'], null, true );
4995
		} else {
4996
			$signature = $jetpack_signature->sign_current_request( array( 'body' => null, 'method' => 'GET' ) );
4997
		}
4998
4999
		if ( ! $signature ) {
5000
			wp_die( $die_error );
5001
		} else if ( is_wp_error( $signature ) ) {
5002
			wp_die( $die_error );
5003
		} else if ( ! hash_equals( $signature, $_GET['signature'] ) ) {
5004
			if ( is_ssl() ) {
5005
				// If we signed an HTTP request on the Jetpack Servers, but got redirected to HTTPS by the local blog, check the HTTP signature as well
5006
				$signature = $jetpack_signature->sign_current_request( array( 'scheme' => 'http', 'body' => null, 'method' => 'GET' ) );
5007
				if ( ! $signature || is_wp_error( $signature ) || ! hash_equals( $signature, $_GET['signature'] ) ) {
5008
					wp_die( $die_error );
5009
				}
5010
			} else {
5011
				wp_die( $die_error );
5012
			}
5013
		}
5014
5015
		$timestamp = (int) $_GET['timestamp'];
5016
		$nonce     = stripslashes( (string) $_GET['nonce'] );
5017
5018
		if ( ! $this->add_nonce( $timestamp, $nonce ) ) {
5019
			// De-nonce the nonce, at least for 5 minutes.
5020
			// We have to reuse this nonce at least once (used the first time when the initial request is made, used a second time when the login form is POSTed)
5021
			$old_nonce_time = get_option( "jetpack_nonce_{$timestamp}_{$nonce}" );
5022
			if ( $old_nonce_time < time() - 300 ) {
5023
				wp_die( __( 'The authorization process expired.  Please go back and try again.' , 'jetpack' ) );
5024
			}
5025
		}
5026
5027
		$data = json_decode( base64_decode( stripslashes( $_GET['data'] ) ) );
5028
		$data_filters = array(
5029
			'state'        => 'opaque',
5030
			'client_id'    => 'int',
5031
			'client_title' => 'string',
5032
			'client_image' => 'url',
5033
		);
5034
5035
		foreach ( $data_filters as $key => $sanitation ) {
5036
			if ( ! isset( $data->$key ) ) {
5037
				wp_die( $die_error );
5038
			}
5039
5040
			switch ( $sanitation ) {
5041
			case 'int' :
5042
				$this->json_api_authorization_request[$key] = (int) $data->$key;
5043
				break;
5044
			case 'opaque' :
5045
				$this->json_api_authorization_request[$key] = (string) $data->$key;
5046
				break;
5047
			case 'string' :
5048
				$this->json_api_authorization_request[$key] = wp_kses( (string) $data->$key, array() );
5049
				break;
5050
			case 'url' :
5051
				$this->json_api_authorization_request[$key] = esc_url_raw( (string) $data->$key );
5052
				break;
5053
			}
5054
		}
5055
5056
		if ( empty( $this->json_api_authorization_request['client_id'] ) ) {
5057
			wp_die( $die_error );
5058
		}
5059
	}
5060
5061
	function login_message_json_api_authorization( $message ) {
5062
		return '<p class="message">' . sprintf(
5063
			esc_html__( '%s wants to access your site&#8217;s data.  Log in to authorize that access.' , 'jetpack' ),
5064
			'<strong>' . esc_html( $this->json_api_authorization_request['client_title'] ) . '</strong>'
5065
		) . '<img src="' . esc_url( $this->json_api_authorization_request['client_image'] ) . '" /></p>';
5066
	}
5067
5068
	/**
5069
	 * Get $content_width, but with a <s>twist</s> filter.
5070
	 */
5071
	public static function get_content_width() {
5072
		$content_width = isset( $GLOBALS['content_width'] ) ? $GLOBALS['content_width'] : false;
5073
		/**
5074
		 * Filter the Content Width value.
5075
		 *
5076
		 * @since 2.2.3
5077
		 *
5078
		 * @param string $content_width Content Width value.
5079
		 */
5080
		return apply_filters( 'jetpack_content_width', $content_width );
5081
	}
5082
5083
	/**
5084
	 * Centralize the function here until it gets added to core.
5085
	 *
5086
	 * @param int|string|object $id_or_email A user ID,  email address, or comment object
5087
	 * @param int $size Size of the avatar image
5088
	 * @param string $default URL to a default image to use if no avatar is available
5089
	 * @param bool $force_display Whether to force it to return an avatar even if show_avatars is disabled
5090
	 *
5091
	 * @return array First element is the URL, second is the class.
5092
	 */
5093
	public static function get_avatar_url( $id_or_email, $size = 96, $default = '', $force_display = false ) {
5094
		// Don't bother adding the __return_true filter if it's already there.
5095
		$has_filter = has_filter( 'pre_option_show_avatars', '__return_true' );
5096
5097
		if ( $force_display && ! $has_filter )
5098
			add_filter( 'pre_option_show_avatars', '__return_true' );
5099
5100
		$avatar = get_avatar( $id_or_email, $size, $default );
5101
5102
		if ( $force_display && ! $has_filter )
5103
			remove_filter( 'pre_option_show_avatars', '__return_true' );
5104
5105
		// If no data, fail out.
5106
		if ( is_wp_error( $avatar ) || ! $avatar )
5107
			return array( null, null );
5108
5109
		// Pull out the URL.  If it's not there, fail out.
5110
		if ( ! preg_match( '/src=["\']([^"\']+)["\']/', $avatar, $url_matches ) )
5111
			return array( null, null );
5112
		$url = wp_specialchars_decode( $url_matches[1], ENT_QUOTES );
5113
5114
		// Pull out the class, but it's not a big deal if it's missing.
5115
		$class = '';
5116
		if ( preg_match( '/class=["\']([^"\']+)["\']/', $avatar, $class_matches ) )
5117
			$class = wp_specialchars_decode( $class_matches[1], ENT_QUOTES );
5118
5119
		return array( $url, $class );
5120
	}
5121
5122
	/**
5123
	 * Pings the WordPress.com Mirror Site for the specified options.
5124
	 *
5125
	 * @param string|array $option_names The option names to request from the WordPress.com Mirror Site
5126
	 *
5127
	 * @return array An associative array of the option values as stored in the WordPress.com Mirror Site
5128
	 */
5129
	public function get_cloud_site_options( $option_names ) {
5130
		$option_names = array_filter( (array) $option_names, 'is_string' );
5131
5132
		Jetpack::load_xml_rpc_client();
5133
		$xml = new Jetpack_IXR_Client( array( 'user_id' => JETPACK_MASTER_USER, ) );
5134
		$xml->query( 'jetpack.fetchSiteOptions', $option_names );
5135
		if ( $xml->isError() ) {
5136
			return array(
5137
				'error_code' => $xml->getErrorCode(),
5138
				'error_msg'  => $xml->getErrorMessage(),
5139
			);
5140
		}
5141
		$cloud_site_options = $xml->getResponse();
5142
5143
		return $cloud_site_options;
5144
	}
5145
5146
	/**
5147
	 * Fetch the filtered array of options that we should compare to determine an identity crisis.
5148
	 *
5149
	 * @return array An array of options to check.
5150
	 */
5151
	public static function identity_crisis_options_to_check() {
5152
		return array(
5153
			'siteurl',
5154
			'home',
5155
		);
5156
	}
5157
5158
	/**
5159
	 * Checks to make sure that local options have the same values as remote options.  Will cache the results for up to 24 hours.
5160
	 *
5161
	 * @param bool $force_recheck Whether to ignore any cached transient and manually re-check.
5162
	 *
5163
	 * @return array An array of options that do not match.  If everything is good, it will evaluate to false.
5164
	 */
5165
	public static function check_identity_crisis( $force_recheck = false ) {
5166
		if ( ! Jetpack::is_active() || Jetpack::is_development_mode() || Jetpack::is_staging_site() )
5167
			return false;
5168
5169
		if ( $force_recheck || false === ( $errors = get_transient( 'jetpack_has_identity_crisis' ) ) ) {
5170
			$options_to_check = self::identity_crisis_options_to_check();
5171
			$cloud_options = Jetpack::init()->get_cloud_site_options( $options_to_check );
5172
			$errors        = array();
5173
5174
			foreach ( $cloud_options as $cloud_key => $cloud_value ) {
5175
5176
				// If it's not the same as the local value...
5177
				if ( $cloud_value !== get_option( $cloud_key ) ) {
5178
5179
					// Break out if we're getting errors.  We are going to check the error keys later when we alert.
5180
					if ( 'error_code' == $cloud_key ) {
5181
						$errors[ $cloud_key ] = $cloud_value;
5182
						break;
5183
					}
5184
5185
					$parsed_cloud_value = parse_url( $cloud_value );
5186
					// If the current options is an IP address
5187
					if ( filter_var( $parsed_cloud_value['host'], FILTER_VALIDATE_IP ) ) {
5188
						// Give the new value a Jetpack to fly in to the clouds
5189
						continue;
5190
					}
5191
5192
					// And it's not been added to the whitelist...
5193
					if ( ! self::is_identity_crisis_value_whitelisted( $cloud_key, $cloud_value ) ) {
5194
						/*
5195
						 * This should be a temporary hack until a cleaner solution is found.
5196
						 *
5197
						 * The siteurl and home can be set to use http in General > Settings
5198
						 * however some constants can be defined that can force https in wp-admin
5199
						 * when this happens wpcom can confuse wporg with a fake identity
5200
						 * crisis with a mismatch of http vs https when it should be allowed.
5201
						 * we need to check that here.
5202
						 *
5203
						 * @see https://github.com/Automattic/jetpack/issues/1006
5204
						 */
5205
						if ( ( 'home' == $cloud_key || 'siteurl' == $cloud_key )
5206
							&& ( substr( $cloud_value, 0, 8 ) == "https://" )
5207
							&& Jetpack::init()->is_ssl_required_to_visit_site() ) {
5208
							// Ok, we found a mismatch of http and https because of wp-config, not an invalid url
5209
							continue;
5210
						}
5211
5212
5213
						// Then kick an error!
5214
						$errors[ $cloud_key ] = $cloud_value;
5215
					}
5216
				}
5217
			}
5218
		}
5219
5220
		/**
5221
		 * Filters the errors returned when checking for an Identity Crisis.
5222
		 *
5223
		 * @since 2.3.2
5224
		 *
5225
		 * @param array $errors Array of Identity Crisis errors.
5226
		 * @param bool $force_recheck Ignore any cached transient and manually re-check. Default to false.
5227
		 */
5228
		return apply_filters( 'jetpack_has_identity_crisis', $errors, $force_recheck );
5229
	}
5230
5231
	/**
5232
	 * Checks whether a value is already whitelisted.
5233
	 *
5234
	 * @param string $key The option name that we're checking the value for.
5235
	 * @param string $value The value that we're curious to see if it's on the whitelist.
5236
	 *
5237
	 * @return bool Whether the value is whitelisted.
5238
	 */
5239
	public static function is_identity_crisis_value_whitelisted( $key, $value ) {
5240
		$whitelist = Jetpack_Options::get_option( 'identity_crisis_whitelist', array() );
5241
		if ( ! empty( $whitelist[ $key ] ) && is_array( $whitelist[ $key ] ) && in_array( $value, $whitelist[ $key ] ) ) {
5242
			return true;
5243
		}
5244
		return false;
5245
	}
5246
5247
	/**
5248
	 * Checks whether the home and siteurl specifically are whitelisted
5249
	 * Written so that we don't have re-check $key and $value params every time
5250
	 * we want to check if this site is whitelisted, for example in footer.php
5251
	 *
5252
	 * @since  3.8.0
5253
	 * @return bool True = already whitelisted False = not whitelisted
5254
	 */
5255
	public static function is_staging_site() {
5256
		$is_staging = false;
5257
5258
		$known_staging = array(
5259
			'urls' => array(
5260
				'#\.staging\.wpengine\.com$#i', // WP Engine
5261
				'#\.staging\.kinsta\.com$#i',   // Kinsta.com
5262
				),
5263
			'constants' => array(
5264
				'IS_WPE_SNAPSHOT',      // WP Engine
5265
				'KINSTA_DEV_ENV',       // Kinsta.com
5266
				'WPSTAGECOACH_STAGING', // WP Stagecoach
5267
				'JETPACK_STAGING_MODE', // Generic
5268
				)
5269
			);
5270
		/**
5271
		 * Filters the flags of known staging sites.
5272
		 *
5273
		 * @since 3.9.0
5274
		 *
5275
		 * @param array $known_staging {
5276
		 *     An array of arrays that each are used to check if the current site is staging.
5277
		 *     @type array $urls      URLs of staging sites in regex to check against site_url.
5278
		 *     @type array $constants PHP constants of known staging/developement environments.
5279
		 *  }
5280
		 */
5281
		$known_staging = apply_filters( 'jetpack_known_staging', $known_staging );
5282
5283
		if ( isset( $known_staging['urls'] ) ) {
5284
			foreach ( $known_staging['urls'] as $url ){
5285
				if ( preg_match( $url, site_url() ) ) {
5286
					$is_staging = true;
5287
					break;
5288
				}
5289
			}
5290
		}
5291
5292
		if ( isset( $known_staging['constants'] ) ) {
5293
			foreach ( $known_staging['constants'] as $constant ) {
5294
				if ( defined( $constant ) && constant( $constant ) ) {
5295
					$is_staging = true;
5296
				}
5297
			}
5298
		}
5299
5300
		/**
5301
		 * Filters is_staging_site check.
5302
		 *
5303
		 * @since 3.9.0
5304
		 *
5305
		 * @param bool $is_staging If the current site is a staging site.
5306
		 */
5307
		return apply_filters( 'jetpack_is_staging_site', $is_staging );
5308
	}
5309
5310
	/**
5311
	 * Maybe Use a .min.css stylesheet, maybe not.
5312
	 *
5313
	 * Hooks onto `plugins_url` filter at priority 1, and accepts all 3 args.
5314
	 */
5315
	public static function maybe_min_asset( $url, $path, $plugin ) {
5316
		// Short out on things trying to find actual paths.
5317
		if ( ! $path || empty( $plugin ) ) {
5318
			return $url;
5319
		}
5320
5321
		// Strip out the abspath.
5322
		$base = dirname( plugin_basename( $plugin ) );
5323
5324
		// Short out on non-Jetpack assets.
5325
		if ( 'jetpack/' !== substr( $base, 0, 8 ) ) {
5326
			return $url;
5327
		}
5328
5329
		// File name parsing.
5330
		$file              = "{$base}/{$path}";
5331
		$full_path         = JETPACK__PLUGIN_DIR . substr( $file, 8 );
5332
		$file_name         = substr( $full_path, strrpos( $full_path, '/' ) + 1 );
5333
		$file_name_parts_r = array_reverse( explode( '.', $file_name ) );
5334
		$extension         = array_shift( $file_name_parts_r );
5335
5336
		if ( in_array( strtolower( $extension ), array( 'css', 'js' ) ) ) {
5337
			// Already pointing at the minified version.
5338
			if ( 'min' === $file_name_parts_r[0] ) {
5339
				return $url;
5340
			}
5341
5342
			$min_full_path = preg_replace( "#\.{$extension}$#", ".min.{$extension}", $full_path );
5343
			if ( file_exists( $min_full_path ) ) {
5344
				$url = preg_replace( "#\.{$extension}$#", ".min.{$extension}", $url );
5345
			}
5346
		}
5347
5348
		return $url;
5349
	}
5350
5351
	/**
5352
	 * Maybe inlines a stylesheet.
5353
	 *
5354
	 * If you'd like to inline a stylesheet instead of printing a link to it,
5355
	 * wp_style_add_data( 'handle', 'jetpack-inline', true );
5356
	 *
5357
	 * Attached to `style_loader_tag` filter.
5358
	 *
5359
	 * @param string $tag The tag that would link to the external asset.
5360
	 * @param string $handle The registered handle of the script in question.
5361
	 *
5362
	 * @return string
5363
	 */
5364
	public static function maybe_inline_style( $tag, $handle ) {
5365
		global $wp_styles;
5366
		$item = $wp_styles->registered[ $handle ];
5367
5368
		if ( ! isset( $item->extra['jetpack-inline'] ) || ! $item->extra['jetpack-inline'] ) {
5369
			return $tag;
5370
		}
5371
5372
		if ( preg_match( '# href=\'([^\']+)\' #i', $tag, $matches ) ) {
5373
			$href = $matches[1];
5374
			// Strip off query string
5375
			if ( $pos = strpos( $href, '?' ) ) {
5376
				$href = substr( $href, 0, $pos );
5377
			}
5378
			// Strip off fragment
5379
			if ( $pos = strpos( $href, '#' ) ) {
5380
				$href = substr( $href, 0, $pos );
5381
			}
5382
		} else {
5383
			return $tag;
5384
		}
5385
5386
		$plugins_dir = plugin_dir_url( JETPACK__PLUGIN_FILE );
5387
		if ( $plugins_dir !== substr( $href, 0, strlen( $plugins_dir ) ) ) {
5388
			return $tag;
5389
		}
5390
5391
		// If this stylesheet has a RTL version, and the RTL version replaces normal...
5392
		if ( isset( $item->extra['rtl'] ) && 'replace' === $item->extra['rtl'] && is_rtl() ) {
5393
			// And this isn't the pass that actually deals with the RTL version...
5394
			if ( false === strpos( $tag, " id='$handle-rtl-css' " ) ) {
5395
				// Short out, as the RTL version will deal with it in a moment.
5396
				return $tag;
5397
			}
5398
		}
5399
5400
		$file = JETPACK__PLUGIN_DIR . substr( $href, strlen( $plugins_dir ) );
5401
		$css  = Jetpack::absolutize_css_urls( file_get_contents( $file ), $href );
5402
		if ( $css ) {
5403
			$tag = "<!-- Inline {$item->handle} -->\r\n";
5404
			if ( empty( $item->extra['after'] ) ) {
5405
				wp_add_inline_style( $handle, $css );
5406
			} else {
5407
				array_unshift( $item->extra['after'], $css );
5408
				wp_style_add_data( $handle, 'after', $item->extra['after'] );
5409
			}
5410
		}
5411
5412
		return $tag;
5413
	}
5414
5415
	/**
5416
	 * Loads a view file from the views
5417
	 *
5418
	 * Data passed in with the $data parameter will be available in the
5419
	 * template file as $data['value']
5420
	 *
5421
	 * @param string $template - Template file to load
5422
	 * @param array $data - Any data to pass along to the template
5423
	 * @return boolean - If template file was found
5424
	 **/
5425
	public function load_view( $template, $data = array() ) {
5426
		$views_dir = JETPACK__PLUGIN_DIR . 'views/';
5427
5428
		if( file_exists( $views_dir . $template ) ) {
5429
			require_once( $views_dir . $template );
5430
			return true;
5431
		}
5432
5433
		error_log( "Jetpack: Unable to find view file $views_dir$template" );
5434
		return false;
5435
	}
5436
5437
	/**
5438
	 * Throws warnings for deprecated hooks to be removed from Jetpack
5439
	 */
5440
	public function deprecated_hooks() {
5441
		global $wp_filter;
5442
5443
		/*
5444
		 * Format:
5445
		 * deprecated_filter_name => replacement_name
5446
		 *
5447
		 * If there is no replacement us null for replacement_name
5448
		 */
5449
		$deprecated_list = array(
5450
			'jetpack_bail_on_shortcode'                              => 'jetpack_shortcodes_to_include',
5451
			'wpl_sharing_2014_1'                                     => null,
5452
			'jetpack-tools-to-include'                               => 'jetpack_tools_to_include',
5453
			'jetpack_identity_crisis_options_to_check'               => null,
5454
			'update_option_jetpack_single_user_site'                 => null,
5455
			'audio_player_default_colors'                            => null,
5456
			'add_option_jetpack_featured_images_enabled'             => null,
5457
			'add_option_jetpack_update_details'                      => null,
5458
			'add_option_jetpack_updates'                             => null,
5459
			'add_option_jetpack_network_name'                        => null,
5460
			'add_option_jetpack_network_allow_new_registrations'     => null,
5461
			'add_option_jetpack_network_add_new_users'               => null,
5462
			'add_option_jetpack_network_site_upload_space'           => null,
5463
			'add_option_jetpack_network_upload_file_types'           => null,
5464
			'add_option_jetpack_network_enable_administration_menus' => null,
5465
			'add_option_jetpack_is_multi_site'                       => null,
5466
			'add_option_jetpack_is_main_network'                     => null,
5467
			'add_option_jetpack_main_network_site'                   => null,
5468
			'jetpack_sync_all_registered_options'                    => null,
5469
		);
5470
5471
		// This is a silly loop depth. Better way?
5472
		foreach( $deprecated_list AS $hook => $hook_alt ) {
5473
			if( isset( $wp_filter[ $hook ] ) && is_array( $wp_filter[ $hook ] ) ) {
5474
				foreach( $wp_filter[$hook] AS $func => $values ) {
5475
					foreach( $values AS $hooked ) {
5476
						_deprecated_function( $hook . ' used for ' . $hooked['function'], null, $hook_alt );
5477
					}
5478
				}
5479
			}
5480
		}
5481
	}
5482
5483
	/**
5484
	 * Converts any url in a stylesheet, to the correct absolute url.
5485
	 *
5486
	 * Considerations:
5487
	 *  - Normal, relative URLs     `feh.png`
5488
	 *  - Data URLs                 `data:image/gif;base64,eh129ehiuehjdhsa==`
5489
	 *  - Schema-agnostic URLs      `//domain.com/feh.png`
5490
	 *  - Absolute URLs             `http://domain.com/feh.png`
5491
	 *  - Domain root relative URLs `/feh.png`
5492
	 *
5493
	 * @param $css string: The raw CSS -- should be read in directly from the file.
5494
	 * @param $css_file_url : The URL that the file can be accessed at, for calculating paths from.
5495
	 *
5496
	 * @return mixed|string
5497
	 */
5498
	public static function absolutize_css_urls( $css, $css_file_url ) {
5499
		$pattern = '#url\((?P<path>[^)]*)\)#i';
5500
		$css_dir = dirname( $css_file_url );
5501
		$p       = parse_url( $css_dir );
5502
		$domain  = sprintf(
5503
					'%1$s//%2$s%3$s%4$s',
5504
					isset( $p['scheme'] )           ? "{$p['scheme']}:" : '',
5505
					isset( $p['user'], $p['pass'] ) ? "{$p['user']}:{$p['pass']}@" : '',
5506
					$p['host'],
5507
					isset( $p['port'] )             ? ":{$p['port']}" : ''
5508
				);
5509
5510
		if ( preg_match_all( $pattern, $css, $matches, PREG_SET_ORDER ) ) {
5511
			$find = $replace = array();
5512
			foreach ( $matches as $match ) {
5513
				$url = trim( $match['path'], "'\" \t" );
5514
5515
				// If this is a data url, we don't want to mess with it.
5516
				if ( 'data:' === substr( $url, 0, 5 ) ) {
5517
					continue;
5518
				}
5519
5520
				// If this is an absolute or protocol-agnostic url,
5521
				// we don't want to mess with it.
5522
				if ( preg_match( '#^(https?:)?//#i', $url ) ) {
5523
					continue;
5524
				}
5525
5526
				switch ( substr( $url, 0, 1 ) ) {
5527
					case '/':
5528
						$absolute = $domain . $url;
5529
						break;
5530
					default:
5531
						$absolute = $css_dir . '/' . $url;
5532
				}
5533
5534
				$find[]    = $match[0];
5535
				$replace[] = sprintf( 'url("%s")', $absolute );
5536
			}
5537
			$css = str_replace( $find, $replace, $css );
5538
		}
5539
5540
		return $css;
5541
	}
5542
5543
	/**
5544
	 * This method checks to see if SSL is required by the site in
5545
	 * order to visit it in some way other than only setting the
5546
	 * https value in the home or siteurl values.
5547
	 *
5548
	 * @since 3.2
5549
	 * @return boolean
5550
	 **/
5551
	private function is_ssl_required_to_visit_site() {
5552
		global $wp_version;
5553
		$ssl = is_ssl();
5554
5555
		if ( force_ssl_admin() ) {
5556
			$ssl = true;
5557
		}
5558
		return $ssl;
5559
	}
5560
5561
	/**
5562
	 * This methods removes all of the registered css files on the front end
5563
	 * from Jetpack in favor of using a single file. In effect "imploding"
5564
	 * all the files into one file.
5565
	 *
5566
	 * Pros:
5567
	 * - Uses only ONE css asset connection instead of 15
5568
	 * - Saves a minimum of 56k
5569
	 * - Reduces server load
5570
	 * - Reduces time to first painted byte
5571
	 *
5572
	 * Cons:
5573
	 * - Loads css for ALL modules. However all selectors are prefixed so it
5574
	 *		should not cause any issues with themes.
5575
	 * - Plugins/themes dequeuing styles no longer do anything. See
5576
	 *		jetpack_implode_frontend_css filter for a workaround
5577
	 *
5578
	 * For some situations developers may wish to disable css imploding and
5579
	 * instead operate in legacy mode where each file loads seperately and
5580
	 * can be edited individually or dequeued. This can be accomplished with
5581
	 * the following line:
5582
	 *
5583
	 * add_filter( 'jetpack_implode_frontend_css', '__return_false' );
5584
	 *
5585
	 * @since 3.2
5586
	 **/
5587
	public function implode_frontend_css( $travis_test = false ) {
5588
		$do_implode = true;
5589
		if ( defined( 'SCRIPT_DEBUG' ) && SCRIPT_DEBUG ) {
5590
			$do_implode = false;
5591
		}
5592
5593
		/**
5594
		 * Allow CSS to be concatenated into a single jetpack.css file.
5595
		 *
5596
		 * @since 3.2.0
5597
		 *
5598
		 * @param bool $do_implode Should CSS be concatenated? Default to true.
5599
		 */
5600
		$do_implode = apply_filters( 'jetpack_implode_frontend_css', $do_implode );
5601
5602
		// Do not use the imploded file when default behaviour was altered through the filter
5603
		if ( ! $do_implode ) {
5604
			return;
5605
		}
5606
5607
		// We do not want to use the imploded file in dev mode, or if not connected
5608
		if ( Jetpack::is_development_mode() || ! self::is_active() ) {
5609
			if ( ! $travis_test ) {
5610
				return;
5611
			}
5612
		}
5613
5614
		// Do not use the imploded file if sharing css was dequeued via the sharing settings screen
5615
		if ( get_option( 'sharedaddy_disable_resources' ) ) {
5616
			return;
5617
		}
5618
5619
		/*
5620
		 * Now we assume Jetpack is connected and able to serve the single
5621
		 * file.
5622
		 *
5623
		 * In the future there will be a check here to serve the file locally
5624
		 * or potentially from the Jetpack CDN
5625
		 *
5626
		 * For now:
5627
		 * - Enqueue a single imploded css file
5628
		 * - Zero out the style_loader_tag for the bundled ones
5629
		 * - Be happy, drink scotch
5630
		 */
5631
5632
		add_filter( 'style_loader_tag', array( $this, 'concat_remove_style_loader_tag' ), 10, 2 );
5633
5634
		$version = Jetpack::is_development_version() ? filemtime( JETPACK__PLUGIN_DIR . 'css/jetpack.css' ) : JETPACK__VERSION;
5635
5636
		wp_enqueue_style( 'jetpack_css', plugins_url( 'css/jetpack.css', __FILE__ ), array(), $version );
5637
		wp_style_add_data( 'jetpack_css', 'rtl', 'replace' );
5638
	}
5639
5640
	function concat_remove_style_loader_tag( $tag, $handle ) {
5641
		if ( in_array( $handle, $this->concatenated_style_handles ) ) {
5642
			$tag = '';
5643
			if ( defined( 'WP_DEBUG' ) && WP_DEBUG ) {
5644
				$tag = "<!-- `" . esc_html( $handle ) . "` is included in the concatenated jetpack.css -->\r\n";
5645
			}
5646
		}
5647
5648
		return $tag;
5649
	}
5650
5651
	/*
5652
	 * Check the heartbeat data
5653
	 *
5654
	 * Organizes the heartbeat data by severity.  For example, if the site
5655
	 * is in an ID crisis, it will be in the $filtered_data['bad'] array.
5656
	 *
5657
	 * Data will be added to "caution" array, if it either:
5658
	 *  - Out of date Jetpack version
5659
	 *  - Out of date WP version
5660
	 *  - Out of date PHP version
5661
	 *
5662
	 * $return array $filtered_data
5663
	 */
5664
	public static function jetpack_check_heartbeat_data() {
5665
		$raw_data = Jetpack_Heartbeat::generate_stats_array();
5666
5667
		$good    = array();
5668
		$caution = array();
5669
		$bad     = array();
5670
5671
		foreach ( $raw_data as $stat => $value ) {
5672
5673
			// Check jetpack version
5674
			if ( 'version' == $stat ) {
5675
				if ( version_compare( $value, JETPACK__VERSION, '<' ) ) {
5676
					$caution[ $stat ] = $value . " - min supported is " . JETPACK__VERSION;
5677
					continue;
5678
				}
5679
			}
5680
5681
			// Check WP version
5682
			if ( 'wp-version' == $stat ) {
5683
				if ( version_compare( $value, JETPACK__MINIMUM_WP_VERSION, '<' ) ) {
5684
					$caution[ $stat ] = $value . " - min supported is " . JETPACK__MINIMUM_WP_VERSION;
5685
					continue;
5686
				}
5687
			}
5688
5689
			// Check PHP version
5690
			if ( 'php-version' == $stat ) {
5691
				if ( version_compare( PHP_VERSION, '5.2.4', '<' ) ) {
5692
					$caution[ $stat ] = $value . " - min supported is 5.2.4";
5693
					continue;
5694
				}
5695
			}
5696
5697
			// Check ID crisis
5698
			if ( 'identitycrisis' == $stat ) {
5699
				if ( 'yes' == $value ) {
5700
					$bad[ $stat ] = $value;
5701
					continue;
5702
				}
5703
			}
5704
5705
			// The rest are good :)
5706
			$good[ $stat ] = $value;
5707
		}
5708
5709
		$filtered_data = array(
5710
			'good'    => $good,
5711
			'caution' => $caution,
5712
			'bad'     => $bad
5713
		);
5714
5715
		return $filtered_data;
5716
	}
5717
5718
5719
	/*
5720
	 * This method is used to organize all options that can be reset
5721
	 * without disconnecting Jetpack.
5722
	 *
5723
	 * It is used in class.jetpack-cli.php to reset options
5724
	 *
5725
	 * @return array of options to delete.
5726
	 */
5727
	public static function get_jetpack_options_for_reset() {
5728
		$jetpack_options            = Jetpack_Options::get_option_names();
5729
		$jetpack_options_non_compat = Jetpack_Options::get_option_names( 'non_compact' );
5730
		$jetpack_options_private    = Jetpack_Options::get_option_names( 'private' );
5731
5732
		$all_jp_options = array_merge( $jetpack_options, $jetpack_options_non_compat, $jetpack_options_private );
5733
5734
		// A manual build of the wp options
5735
		$wp_options = array(
5736
			'sharing-options',
5737
			'disabled_likes',
5738
			'disabled_reblogs',
5739
			'jetpack_comments_likes_enabled',
5740
			'wp_mobile_excerpt',
5741
			'wp_mobile_featured_images',
5742
			'wp_mobile_app_promos',
5743
			'stats_options',
5744
			'stats_dashboard_widget',
5745
			'safecss_preview_rev',
5746
			'safecss_rev',
5747
			'safecss_revision_migrated',
5748
			'nova_menu_order',
5749
			'jetpack_portfolio',
5750
			'jetpack_portfolio_posts_per_page',
5751
			'jetpack_testimonial',
5752
			'jetpack_testimonial_posts_per_page',
5753
			'wp_mobile_custom_css',
5754
			'sharedaddy_disable_resources',
5755
			'sharing-options',
5756
			'sharing-services',
5757
			'site_icon_temp_data',
5758
			'featured-content',
5759
			'site_logo',
5760
			'jetpack_dismissed_notices',
5761
		);
5762
5763
		// Flag some Jetpack options as unsafe
5764
		$unsafe_options = array(
5765
			'id',                           // (int)    The Client ID/WP.com Blog ID of this site.
5766
			'master_user',                  // (int)    The local User ID of the user who connected this site to jetpack.wordpress.com.
5767
			'version',                      // (string) Used during upgrade procedure to auto-activate new modules. version:time
5768
			'jumpstart',                    // (string) A flag for whether or not to show the Jump Start.  Accepts: new_connection, jumpstart_activated, jetpack_action_taken, jumpstart_dismissed.
5769
5770
			// non_compact
5771
			'activated',
5772
5773
			// private
5774
			'register',
5775
			'blog_token',                  // (string) The Client Secret/Blog Token of this site.
5776
			'user_token',                  // (string) The User Token of this site. (deprecated)
5777
			'user_tokens'
5778
		);
5779
5780
		// Remove the unsafe Jetpack options
5781
		foreach ( $unsafe_options as $unsafe_option ) {
5782
			if ( false !== ( $key = array_search( $unsafe_option, $all_jp_options ) ) ) {
5783
				unset( $all_jp_options[ $key ] );
5784
			}
5785
		}
5786
5787
		$options = array(
5788
			'jp_options' => $all_jp_options,
5789
			'wp_options' => $wp_options
5790
		);
5791
5792
		return $options;
5793
	}
5794
5795
	/**
5796
	 * Check if an option of a Jetpack module has been updated.
5797
	 *
5798
	 * If any module option has been updated before Jump Start has been dismissed,
5799
	 * update the 'jumpstart' option so we can hide Jump Start.
5800
	 *
5801
	 * @param string $option_name
5802
	 *
5803
	 * @return bool
5804
	 */
5805
	public static function jumpstart_has_updated_module_option( $option_name = '' ) {
5806
		// Bail if Jump Start has already been dismissed
5807
		if ( 'new_connection' !== Jetpack_Options::get_option( 'jumpstart' ) ) {
5808
			return false;
5809
		}
5810
5811
		$jetpack = Jetpack::init();
5812
5813
		// Manual build of module options
5814
		$option_names = self::get_jetpack_options_for_reset();
5815
5816
		if ( in_array( $option_name, $option_names['wp_options'] ) ) {
5817
			Jetpack_Options::update_option( 'jumpstart', 'jetpack_action_taken' );
5818
5819
			//Jump start is being dismissed send data to MC Stats
5820
			$jetpack->stat( 'jumpstart', 'manual,'.$option_name );
5821
5822
			$jetpack->do_stats( 'server_side' );
5823
		}
5824
5825
	}
5826
5827
	/*
5828
	 * Strip http:// or https:// from a url, replaces forward slash with ::,
5829
	 * so we can bring them directly to their site in calypso.
5830
	 *
5831
	 * @param string | url
5832
	 * @return string | url without the guff
5833
	 */
5834
	public static function build_raw_urls( $url ) {
5835
		$strip_http = '/.*?:\/\//i';
5836
		$url = preg_replace( $strip_http, '', $url  );
5837
		$url = str_replace( '/', '::', $url );
5838
		return $url;
5839
	}
5840
5841
	/**
5842
	 * Stores and prints out domains to prefetch for page speed optimization.
5843
	 *
5844
	 * @param mixed $new_urls
5845
	 */
5846
	public static function dns_prefetch( $new_urls = null ) {
5847
		static $prefetch_urls = array();
5848
		if ( empty( $new_urls ) && ! empty( $prefetch_urls ) ) {
5849
			echo "\r\n";
5850
			foreach ( $prefetch_urls as $this_prefetch_url ) {
5851
				printf( "<link rel='dns-prefetch' href='%s'>\r\n", esc_attr( $this_prefetch_url ) );
5852
			}
5853
		} elseif ( ! empty( $new_urls ) ) {
5854
			if ( ! has_action( 'wp_head', array( __CLASS__, __FUNCTION__ ) ) ) {
5855
				add_action( 'wp_head', array( __CLASS__, __FUNCTION__ ) );
5856
			}
5857
			foreach ( (array) $new_urls as $this_new_url ) {
5858
				$prefetch_urls[] = strtolower( untrailingslashit( preg_replace( '#^https?://#i', '//', $this_new_url ) ) );
5859
			}
5860
			$prefetch_urls = array_unique( $prefetch_urls );
5861
		}
5862
	}
5863
5864
	public function wp_dashboard_setup() {
5865
		if ( self::is_active() ) {
5866
			add_action( 'jetpack_dashboard_widget', array( __CLASS__, 'dashboard_widget_footer' ), 999 );
5867
			$widget_title = __( 'Site Stats', 'jetpack' );
5868
		} elseif ( ! self::is_development_mode() && current_user_can( 'jetpack_connect' ) ) {
5869
			add_action( 'jetpack_dashboard_widget', array( $this, 'dashboard_widget_connect_to_wpcom' ) );
5870
			$widget_title = __( 'Please Connect Jetpack', 'jetpack' );
5871
		}
5872
5873
		if ( has_action( 'jetpack_dashboard_widget' ) ) {
5874
			wp_add_dashboard_widget(
5875
				'jetpack_summary_widget',
5876
				$widget_title,
5877
				array( __CLASS__, 'dashboard_widget' )
5878
			);
5879
			wp_enqueue_style( 'jetpack-dashboard-widget', plugins_url( 'css/dashboard-widget.css', JETPACK__PLUGIN_FILE ), array(), JETPACK__VERSION );
5880
5881
			// If we're inactive and not in development mode, sort our box to the top.
5882
			if ( ! self::is_active() && ! self::is_development_mode() ) {
5883
				global $wp_meta_boxes;
5884
5885
				$dashboard = $wp_meta_boxes['dashboard']['normal']['core'];
5886
				$ours      = array( 'jetpack_summary_widget' => $dashboard['jetpack_summary_widget'] );
5887
5888
				$wp_meta_boxes['dashboard']['normal']['core'] = array_merge( $ours, $dashboard );
5889
			}
5890
		}
5891
	}
5892
5893
	/**
5894
	 * @param mixed $result Value for the user's option
5895
	 * @return mixed
5896
	 */
5897
	function get_user_option_meta_box_order_dashboard( $sorted ) {
5898
		if ( ! is_array( $sorted ) ) {
5899
			return $sorted;
5900
		}
5901
5902
		foreach ( $sorted as $box_context => $ids ) {
5903
			if ( false === strpos( $ids, 'dashboard_stats' ) ) {
5904
				// If the old id isn't anywhere in the ids, don't bother exploding and fail out.
5905
				continue;
5906
			}
5907
5908
			$ids_array = explode( ',', $ids );
5909
			$key = array_search( 'dashboard_stats', $ids_array );
5910
5911
			if ( false !== $key ) {
5912
				// If we've found that exact value in the option (and not `google_dashboard_stats` for example)
5913
				$ids_array[ $key ] = 'jetpack_summary_widget';
5914
				$sorted[ $box_context ] = implode( ',', $ids_array );
5915
				// We've found it, stop searching, and just return.
5916
				break;
5917
			}
5918
		}
5919
5920
		return $sorted;
5921
	}
5922
5923
	public static function dashboard_widget() {
5924
		/**
5925
		 * Fires when the dashboard is loaded.
5926
		 *
5927
		 * @since 3.4.0
5928
		 */
5929
		do_action( 'jetpack_dashboard_widget' );
5930
	}
5931
5932
	public static function dashboard_widget_footer() {
5933
		?>
5934
		<footer>
5935
5936
		<div class="protect">
5937
			<?php if ( Jetpack::is_module_active( 'protect' ) ) : ?>
5938
				<h3><?php echo number_format_i18n( get_site_option( 'jetpack_protect_blocked_attempts', 0 ) ); ?></h3>
5939
				<p><?php echo esc_html_x( 'Blocked malicious login attempts', '{#} Blocked malicious login attempts -- number is on a prior line, text is a caption.', 'jetpack' ); ?></p>
5940
			<?php elseif ( current_user_can( 'jetpack_activate_modules' ) && ! self::is_development_mode() ) : ?>
5941
				<a href="<?php echo esc_url( wp_nonce_url( Jetpack::admin_url( array( 'action' => 'activate', 'module' => 'protect' ) ), 'jetpack_activate-protect' ) ); ?>" class="button button-jetpack" title="<?php esc_attr_e( 'Protect helps to keep you secure from brute-force login attacks.', 'jetpack' ); ?>">
5942
					<?php esc_html_e( 'Activate Protect', 'jetpack' ); ?>
5943
				</a>
5944
			<?php else : ?>
5945
				<?php esc_html_e( 'Protect is inactive.', 'jetpack' ); ?>
5946
			<?php endif; ?>
5947
		</div>
5948
5949
		<div class="akismet">
5950
			<?php if ( is_plugin_active( 'akismet/akismet.php' ) ) : ?>
5951
				<h3><?php echo number_format_i18n( get_option( 'akismet_spam_count', 0 ) ); ?></h3>
5952
				<p><?php echo esc_html_x( 'Spam comments blocked by Akismet.', '{#} Spam comments blocked by Akismet -- number is on a prior line, text is a caption.', 'jetpack' ); ?></p>
5953
			<?php elseif ( current_user_can( 'activate_plugins' ) && ! is_wp_error( validate_plugin( 'akismet/akismet.php' ) ) ) : ?>
5954
				<a href="<?php echo esc_url( wp_nonce_url( add_query_arg( array( 'action' => 'activate', 'plugin' => 'akismet/akismet.php' ), admin_url( 'plugins.php' ) ), 'activate-plugin_akismet/akismet.php' ) ); ?>" class="button button-jetpack">
5955
					<?php esc_html_e( 'Activate Akismet', 'jetpack' ); ?>
5956
				</a>
5957
			<?php else : ?>
5958
				<p><a href="<?php echo esc_url( 'https://akismet.com/?utm_source=jetpack&utm_medium=link&utm_campaign=Jetpack%20Dashboard%20Widget%20Footer%20Link' ); ?>"><?php esc_html_e( 'Akismet can help to keep your blog safe from spam!', 'jetpack' ); ?></a></p>
5959
			<?php endif; ?>
5960
		</div>
5961
5962
		</footer>
5963
		<?php
5964
	}
5965
5966
	public function dashboard_widget_connect_to_wpcom() {
5967
		if ( Jetpack::is_active() || Jetpack::is_development_mode() || ! current_user_can( 'jetpack_connect' ) ) {
5968
			return;
5969
		}
5970
		?>
5971
		<div class="wpcom-connect">
5972
			<div class="jp-emblem">
5973
			<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1" id="Layer_1" x="0" y="0" viewBox="0 0 172.9 172.9" enable-background="new 0 0 172.9 172.9" xml:space="preserve">
5974
				<path d="M86.4 0C38.7 0 0 38.7 0 86.4c0 47.7 38.7 86.4 86.4 86.4s86.4-38.7 86.4-86.4C172.9 38.7 134.2 0 86.4 0zM83.1 106.6l-27.1-6.9C49 98 45.7 90.1 49.3 84l33.8-58.5V106.6zM124.9 88.9l-33.8 58.5V66.3l27.1 6.9C125.1 74.9 128.4 82.8 124.9 88.9z"/>
5975
			</svg>
5976
			</div>
5977
			<h3><?php esc_html_e( 'Please Connect Jetpack', 'jetpack' ); ?></h3>
5978
			<p><?php echo wp_kses( __( 'Connecting Jetpack will show you <strong>stats</strong> about your traffic, <strong>protect</strong> you from brute force attacks, <strong>speed up</strong> your images and photos, and enable other <strong>traffic and security</strong> features.', 'jetpack' ), 'jetpack' ) ?></p>
5979
5980
			<div class="actions">
5981
				<a href="<?php echo $this->build_connect_url( false, false, 'widget-btn' ); ?>" class="button button-primary">
5982
					<?php esc_html_e( 'Connect Jetpack', 'jetpack' ); ?>
5983
				</a>
5984
			</div>
5985
		</div>
5986
		<?php
5987
	}
5988
5989
	/*
5990
	 * A graceful transition to using Core's site icon.
5991
	 *
5992
	 * All of the hard work has already been done with the image
5993
	 * in all_done_page(). All that needs to be done now is update
5994
	 * the option and display proper messaging.
5995
	 *
5996
	 * @todo remove when WP 4.3 is minimum
5997
	 *
5998
	 * @since 3.6.1
5999
	 *
6000
	 * @return bool false = Core's icon not available || true = Core's icon is available
6001
	 */
6002
	public static function jetpack_site_icon_available_in_core() {
6003
		global $wp_version;
6004
		$core_icon_available = function_exists( 'has_site_icon' ) && version_compare( $wp_version, '4.3-beta' ) >= 0;
6005
6006
		if ( ! $core_icon_available ) {
6007
			return false;
6008
		}
6009
6010
		// No need for Jetpack's site icon anymore if core's is already set
6011
		if ( has_site_icon() ) {
6012
			if ( Jetpack::is_module_active( 'site-icon' ) ) {
6013
				Jetpack::log( 'deactivate', 'site-icon' );
6014
				Jetpack::deactivate_module( 'site-icon' );
6015
			}
6016
			return true;
6017
		}
6018
6019
		// Transfer Jetpack's site icon to use core.
6020
		$site_icon_id = Jetpack::get_option( 'site_icon_id' );
6021
		if ( $site_icon_id ) {
6022
			// Update core's site icon
6023
			update_option( 'site_icon', $site_icon_id );
6024
6025
			// Delete Jetpack's icon option. We still want the blavatar and attached data though.
6026
			delete_option( 'site_icon_id' );
6027
		}
6028
6029
		// No need for Jetpack's site icon anymore
6030
		if ( Jetpack::is_module_active( 'site-icon' ) ) {
6031
			Jetpack::log( 'deactivate', 'site-icon' );
6032
			Jetpack::deactivate_module( 'site-icon' );
6033
		}
6034
6035
		return true;
6036
	}
6037
6038
	/**
6039
	 * Return string containing the Jetpack logo.
6040
	 *
6041
	 * @since 3.9.0
6042
	 *
6043
	 * @return string
6044
	 */
6045
	public static function get_jp_emblem() {
6046
		return '<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1" id="Layer_1" x="0" y="0" viewBox="0 0 172.9 172.9" enable-background="new 0 0 172.9 172.9" xml:space="preserve">	<path d="M86.4 0C38.7 0 0 38.7 0 86.4c0 47.7 38.7 86.4 86.4 86.4s86.4-38.7 86.4-86.4C172.9 38.7 134.2 0 86.4 0zM83.1 106.6l-27.1-6.9C49 98 45.7 90.1 49.3 84l33.8-58.5V106.6zM124.9 88.9l-33.8 58.5V66.3l27.1 6.9C125.1 74.9 128.4 82.8 124.9 88.9z" /></svg>';
6047
	}
6048
6049
	/*
6050
	 * Adds a "blank" column in the user admin table to display indication of user connection.
6051
	 */
6052
	function jetpack_icon_user_connected( $columns ) {
6053
		$columns['user_jetpack'] = '';
6054
		return $columns;
6055
	}
6056
6057
	/*
6058
	 * Show Jetpack icon if the user is linked.
6059
	 */
6060
	function jetpack_show_user_connected_icon( $val, $col, $user_id ) {
6061
		if ( 'user_jetpack' == $col && Jetpack::is_user_connected( $user_id ) ) {
6062
			$emblem_html = sprintf(
6063
				'<a title="%1$s" class="jp-emblem-user-admin">%2$s</a>',
6064
				esc_attr__( 'This user is linked and ready to fly with Jetpack.', 'jetpack' ),
6065
				Jetpack::get_jp_emblem()
6066
			);
6067
			return $emblem_html;
6068
		}
6069
6070
		return $val;
6071
	}
6072
6073
	/*
6074
	 * Style the Jetpack user column
6075
	 */
6076
	function jetpack_user_col_style() {
6077
		global $current_screen;
6078
		if ( ! empty( $current_screen->base ) && 'users' == $current_screen->base ) { ?>
6079
			<style>
6080
				.fixed .column-user_jetpack {
6081
					width: 21px;
6082
				}
6083
				.jp-emblem-user-admin path {
6084
					fill: #8cc258;
6085
				}
6086
			</style>
6087
		<?php }
6088
	}
6089
6090
}
6091