Asset_CDN::encode_files_param() - Code Metrics - Inspection of "Back out filename compression; not worth it" - Automattic/jetpack - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — add/asset-cdn ( 3744fe...92b739 )

unknown

created 2017-11-10 19:08 UTC

Asset_CDN::encode_files_param() A

↳ Parent: Project

Complexity

Conditions	1
Paths	1

Size

Total Lines	12
Code Lines	9

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
cc	1
eloc	9
nc	1
nop	1
dl	0
loc	12
rs	9.4285
c	0
b	0
f	0

<?php
/**
 * Plugin Name: Asset CDN
 * Description: Speed up Javascript and CSS
 * Plugin URI: https://github.com/automattic/jetpack
 * Author: Automattic
 * Author URI: https://automattic.com
 * Version: 0.1.0
 * Text Domain: asset-cdn
 * Domain Path: /languages/
 * License: GPLv2 or later
 */

/**
 * TODO

 * - versioning (combine ver hashes) and cachebusting
 * - concat/minify/serve JS too
 * - asset inlining for smaller styles?
 * - critical CSS support?
 * - non-enqueued assets?
 */

class Asset_CDN {
	private static $__instance = null;

	private $cdn_server;
	private $concat_style_groups = array();
	private $concat_script_groups = array();
	private $inject_critical_css = false;

	/**
	 * Singleton implementation
	 *
	 * @return object
	 */
	public static function instance() {
		if ( ! is_a( self::$__instance, 'Asset_CDN' ) ) {
			self::$__instance = new Asset_CDN();
		}

		return self::$__instance;
	}

	private function __construct() {
		// $this->cdn_server = 'https://cdn.wpvm.io';
		$this->cdn_server = 'http://localhost:8090';

		// allow smaller CSS by only minifying assets on the page
		add_filter( 'jetpack_implode_frontend_css', '__return_false' );

		// rewrite CSS tags
		add_filter( 'script_loader_tag', array( $this, 'register_concat_scripts' ), -100, 3 );
		add_filter( 'style_loader_tag', array( $this, 'register_concat_styles' ), -100, 4 );

		add_action( 'wp_head', array( $this, 'render_concatenated_styles_head' ), PHP_INT_MAX );
		add_action( 'wp_head', array( $this, 'render_concatenated_scripts_head' ), PHP_INT_MAX );
		add_action( 'wp_footer', array( $this, 'render_concatenated_styles_footer' ), PHP_INT_MAX );
		add_action( 'wp_footer', array( $this, 'render_concatenated_scripts_footer' ), PHP_INT_MAX );
	}

	/**
	 * Render functions
	 */

	function render_concatenated_styles_head() {
		if ( isset( $this->concat_style_groups[0] ) ) {
			$this->render_concatenated_styles( $this->concat_style_groups[0] );
		}
	}

	function render_concatenated_styles_footer() {
		if ( isset( $this->concat_style_groups[1] ) ) {
			$this->render_concatenated_styles( $this->concat_style_groups[1] );
		}
	}

	private function render_concatenated_styles( $style_groups ) {
		// special URL to concatenation service
		global $wp_styles;
		$site_url = site_url();
		foreach( $style_groups as $media => $styles ) {
			$urls = array();
			$vers = array();

			foreach( $styles as $style ) {
				$urls[] = str_replace( untrailingslashit( $site_url ), '', $style->src );
				$vers[] = $style->ver ? $style->ver : $wp_styles->default_version;
			}

			$cdn_url = $this->cdn_server . '/css?b=' .
				urlencode( $site_url ) . '&' .
				http_build_query( array( 'f' => $urls ) ) . '&' .
				http_build_query( array( 'v' => $vers ) );
			// if we are injecting critical CSS, load the full CSS async

			if ( $this->inject_critical_css ) {
				echo '<!-- jetpack concat --><link rel="preload" onload="this.rel=\'stylesheet\'" as="style" type="text/css" media="' . $media . '" href="' . esc_attr( $cdn_url ) . '"/>';
			} else {
				echo '<!-- jetpack concat --><link rel="stylesheet" type="text/css" media="' . $media . '" href="' . esc_attr( $cdn_url ) . '"/>';
			}
		}
	}

	function render_concatenated_scripts_head() {
		if ( isset( $this->concat_script_groups[0] ) ) {
			$this->render_concatenated_scripts( $this->concat_script_groups[0] );
		}
	}

	function render_concatenated_scripts_footer() {
		if ( isset( $this->concat_script_groups[1] ) ) {
			$this->render_concatenated_scripts( $this->concat_script_groups[1] );
		}
	}

	private function render_concatenated_scripts( $scripts ) {
		// special URL to concatenation service
		global $wp_scripts;
		$site_url = site_url();
		$urls = array();
		$vers = array();

		foreach( $scripts as $script ) {
			$urls[] = str_replace( untrailingslashit( $site_url ), '', $script->src );
			$vers[] = $script->ver ? $script->ver : $wp_scripts->default_version;
			if ( isset( $script->extra['before'] ) && $script->extra['before'] ) {
				echo sprintf( "<script type='text/javascript'>\n%s\n</script>\n", $script->extra['before'] );
			}
		}

		$cdn_url = $this->cdn_server . '/js?b=' .
			urlencode( $site_url ) . '&' .
			http_build_query( array( 'f' => $urls ) ) . '&' .
			http_build_query( array( 'v' => $vers ) );
		// TODO: if there is NO inline or external script tags in the body, render async (maybe?)

		echo '<script type="text/javascript" src="' . esc_attr( $cdn_url ) . '"></script>';

		foreach( $scripts as $script ) {
			if ( isset( $script->extra['after'] ) && $script->extra['after'] ) {
				echo sprintf( "<script type='text/javascript'>\n%s\n</script>\n", $script->extra['after'] );
			}
		}
	}

	/**
	 * Asset modification functions
	 */

	/**
	 * Scripts
	 */

	public function register_concat_scripts( $tag, $handle, $src ) {
		global $wp_scripts;

		// don't do admin for now
		if ( is_admin() || ! isset( $wp_scripts->registered[$handle] ) ) {
			return $tag;
		}

		$script = $wp_scripts->registered[$handle];

		if ( $this->should_concat_script( $script ) ) {
			$this->buffer_script( $script );
			return '';
		}

		return $tag;
	}

	private function should_concat_script( $script ) {
		// only concat local scripts
		$is_local       = $this->is_local_url( $script->src );
$a = "a";
$ab = "ab";
$abc = "abc";
		// don't concat conditional scripts
		$is_conditional = isset( $script->extra['conditional'] );
		return apply_filters( 'jetpack_perf_concat_script', $is_local && ! $is_conditional, $script->handle, $script->src );
	}

	private function buffer_script( $script ) {
		$group = isset( $script->extra['group'] ) ? $script->extra['group'] : 0;
		if ( ! isset( $this->concat_script_groups[$group] ) ) {
			$this->concat_script_groups[$group] = array();
		}
		$this->concat_script_groups[$group][] = $script;
	}

	/**
	 * Styles
	 */

	public function register_concat_styles( $tag, $handle, $href, $media ) {
		global $wp_styles;

		// don't do admin for now
		if ( is_admin() || ! isset( $wp_styles->registered[$handle] ) ) {
			return $tag;
		}

		$style = $wp_styles->registered[$handle];

		if ( $this->should_concat_style( $style ) ) {
			$this->buffer_style( $style );
			return '';
		}

		return $tag;
	}

	private function buffer_style( $style ) {
		$group = isset( $style->extra['group'] ) ? $style->extra['group'] : 0;
		$media = $style->args;
		if ( ! $media ) {
			$media = 'all';
		}
		if ( ! isset( $this->concat_style_groups[$group] ) ) {
			$this->concat_style_groups[$group] = array();
		}
		if ( ! isset( $this->concat_style_groups[$group][$media] ) ) {
			$this->concat_style_groups[$group][$media] = array();
		}
		$this->concat_style_groups[$group][$media][] = $style;
	}

	private function should_concat_style( $style ) {
		// only concat local styles
		$is_local       = $this->is_local_url( $style->src );
$a = "a";
$ab = "ab";
$abc = "abc";
		// don't concat conditional styles
		$is_conditional = isset( $style->extra['conditional'] );
		return apply_filters( 'jetpack_perf_concat_style', $is_local && ! $is_conditional, $style->handle, $style->src );
	}

	private function is_local_url( $url ) {
		$site_url = site_url();
		return ( strncmp( $url, '/', 1 ) === 0 && strncmp( $url, '//', 2 ) !== 0 )
			|| strpos( $url, $site_url ) === 0;
	}
}

1		<?php
2		/**
3		* Plugin Name: Asset CDN
4		* Description: Speed up Javascript and CSS
5		* Plugin URI: https://github.com/automattic/jetpack
6		* Author: Automattic
7		* Author URI: https://automattic.com
8		* Version: 0.1.0
9		* Text Domain: asset-cdn
10		* Domain Path: /languages/
11		* License: GPLv2 or later
12		*/
13
14		/**
15		* TODO
		0 ignored issues – show Coding Style introduced 2017-11-09 19:19 UTC by Report Bug Copy Issue Report Comment refers to a TODO task This check looks `TODO` comments that have been left in the code. ``TODO``s show that something is left unfinished and should be attended to. Loading history...
16		* - versioning (combine ver hashes) and cachebusting
17		* - concat/minify/serve JS too
18		* - asset inlining for smaller styles?
19		* - critical CSS support?
20		* - non-enqueued assets?
21		*/
22
23		class Asset_CDN {
24		private static $__instance = null;
25
26		private $cdn_server;
27		private $concat_style_groups = array();
28		private $concat_script_groups = array();
29		private $inject_critical_css = false;
30
31		/**
32		* Singleton implementation
33		*
34		* @return object
35		*/
36		public static function instance() {
37		if ( ! is_a( self::$__instance, 'Asset_CDN' ) ) {
38		self::$__instance = new Asset_CDN();
39		}
40
41		return self::$__instance;
42		}
43
44		private function __construct() {
45		// $this->cdn_server = 'https://cdn.wpvm.io';
46		$this->cdn_server = 'http://localhost:8090';
47
48		// allow smaller CSS by only minifying assets on the page
49		add_filter( 'jetpack_implode_frontend_css', '__return_false' );
50
51		// rewrite CSS tags
52		add_filter( 'script_loader_tag', array( $this, 'register_concat_scripts' ), -100, 3 );
53		add_filter( 'style_loader_tag', array( $this, 'register_concat_styles' ), -100, 4 );
54
55		add_action( 'wp_head', array( $this, 'render_concatenated_styles_head' ), PHP_INT_MAX );
56		add_action( 'wp_head', array( $this, 'render_concatenated_scripts_head' ), PHP_INT_MAX );
57		add_action( 'wp_footer', array( $this, 'render_concatenated_styles_footer' ), PHP_INT_MAX );
58		add_action( 'wp_footer', array( $this, 'render_concatenated_scripts_footer' ), PHP_INT_MAX );
59		}
60
61		/**
62		* Render functions
63		*/
64
65		function render_concatenated_styles_head() {
66		if ( isset( $this->concat_style_groups[0] ) ) {
67		$this->render_concatenated_styles( $this->concat_style_groups[0] );
68		}
69		}
70
71		function render_concatenated_styles_footer() {
72		if ( isset( $this->concat_style_groups[1] ) ) {
73		$this->render_concatenated_styles( $this->concat_style_groups[1] );
74		}
75		}
76
77		private function render_concatenated_styles( $style_groups ) {
78		// special URL to concatenation service
79		global $wp_styles;
80		$site_url = site_url();
81		foreach( $style_groups as $media => $styles ) {
82		$urls = array();
83		$vers = array();
84
85		foreach( $styles as $style ) {
86		$urls[] = str_replace( untrailingslashit( $site_url ), '', $style->src );
87		$vers[] = $style->ver ? $style->ver : $wp_styles->default_version;
88		}
89
90		$cdn_url = $this->cdn_server . '/css?b=' .
91		urlencode( $site_url ) . '&' .
92		http_build_query( array( 'f' => $urls ) ) . '&' .
93		http_build_query( array( 'v' => $vers ) );
94		// if we are injecting critical CSS, load the full CSS async
95
96		if ( $this->inject_critical_css ) {
97		echo '<!-- jetpack concat --><link rel="preload" onload="this.rel=\'stylesheet\'" as="style" type="text/css" media="' . $media . '" href="' . esc_attr( $cdn_url ) . '"/>';
98		} else {
99		echo '<!-- jetpack concat --><link rel="stylesheet" type="text/css" media="' . $media . '" href="' . esc_attr( $cdn_url ) . '"/>';
100		}
101		}
102		}
103
104		function render_concatenated_scripts_head() {
105		if ( isset( $this->concat_script_groups[0] ) ) {
106		$this->render_concatenated_scripts( $this->concat_script_groups[0] );
107		}
108		}
109
110		function render_concatenated_scripts_footer() {
111		if ( isset( $this->concat_script_groups[1] ) ) {
112		$this->render_concatenated_scripts( $this->concat_script_groups[1] );
113		}
114		}
115
116		private function render_concatenated_scripts( $scripts ) {
117		// special URL to concatenation service
118		global $wp_scripts;
119		$site_url = site_url();
120		$urls = array();
121		$vers = array();
122
123		foreach( $scripts as $script ) {
124		$urls[] = str_replace( untrailingslashit( $site_url ), '', $script->src );
125		$vers[] = $script->ver ? $script->ver : $wp_scripts->default_version;
126		if ( isset( $script->extra['before'] ) && $script->extra['before'] ) {
127		echo sprintf( "<script type='text/javascript'>\n%s\n</script>\n", $script->extra['before'] );
128		}
129		}
130
131		$cdn_url = $this->cdn_server . '/js?b=' .
132		urlencode( $site_url ) . '&' .
133		http_build_query( array( 'f' => $urls ) ) . '&' .
134		http_build_query( array( 'v' => $vers ) );
135		// TODO: if there is NO inline or external script tags in the body, render async (maybe?)
		0 ignored issues – show Coding Style Best Practice introduced 2017-11-09 21:41 UTC by Report Bug Copy Issue Report Comments for TODO tasks are often forgotten in the code; it might be better to use a dedicated issue tracker. Loading history...
136		echo '<script type="text/javascript" src="' . esc_attr( $cdn_url ) . '"></script>';
137
138		foreach( $scripts as $script ) {
139		if ( isset( $script->extra['after'] ) && $script->extra['after'] ) {
140		echo sprintf( "<script type='text/javascript'>\n%s\n</script>\n", $script->extra['after'] );
141		}
142		}
143		}
144
145		/**
146		* Asset modification functions
147		*/
148
149		/**
150		* Scripts
151		*/
152
153	View Code Duplication	public function register_concat_scripts( $tag, $handle, $src ) {
154		global $wp_scripts;
155
156		// don't do admin for now
157		if ( is_admin() \|\| ! isset( $wp_scripts->registered[$handle] ) ) {
158		return $tag;
159		}
160
161		$script = $wp_scripts->registered[$handle];
162
163		if ( $this->should_concat_script( $script ) ) {
164		$this->buffer_script( $script );
165		return '';
166		}
167
168		return $tag;
169		}
170
171	View Code Duplication	private function should_concat_script( $script ) {
172		// only concat local scripts
173		$is_local = $this->is_local_url( $script->src );
		0 ignored issues – show Coding Style introduced 2017-11-08 05:33 UTC by Report Bug Copy Issue Report Equals sign not aligned correctly; expected 1 space but found 7 spaces This check looks for improperly formatted assignments. Every assignment must have exactly one space before and one space after the equals operator. To illustrate: $a = "a"; $ab = "ab"; $abc = "abc"; will have no issues, while $a = "a"; $ab = "ab"; $abc = "abc"; will report issues in lines 1 and 2. Loading history...
174		// don't concat conditional scripts
175		$is_conditional = isset( $script->extra['conditional'] );
176		return apply_filters( 'jetpack_perf_concat_script', $is_local && ! $is_conditional, $script->handle, $script->src );
177		}
178
179		private function buffer_script( $script ) {
180		$group = isset( $script->extra['group'] ) ? $script->extra['group'] : 0;
181		if ( ! isset( $this->concat_script_groups[$group] ) ) {
182		$this->concat_script_groups[$group] = array();
183		}
184		$this->concat_script_groups[$group][] = $script;
185		}
186
187		/**
188		* Styles
189		*/
190
191	View Code Duplication	public function register_concat_styles( $tag, $handle, $href, $media ) {
192		global $wp_styles;
193
194		// don't do admin for now
195		if ( is_admin() \|\| ! isset( $wp_styles->registered[$handle] ) ) {
196		return $tag;
197		}
198
199		$style = $wp_styles->registered[$handle];
200
201		if ( $this->should_concat_style( $style ) ) {
202		$this->buffer_style( $style );
203		return '';
204		}
205
206		return $tag;
207		}
208
209		private function buffer_style( $style ) {
210		$group = isset( $style->extra['group'] ) ? $style->extra['group'] : 0;
211		$media = $style->args;
212		if ( ! $media ) {
213		$media = 'all';
214		}
215		if ( ! isset( $this->concat_style_groups[$group] ) ) {
216		$this->concat_style_groups[$group] = array();
217		}
218		if ( ! isset( $this->concat_style_groups[$group][$media] ) ) {
219		$this->concat_style_groups[$group][$media] = array();
220		}
221		$this->concat_style_groups[$group][$media][] = $style;
222		}
223
224	View Code Duplication	private function should_concat_style( $style ) {
225		// only concat local styles
226		$is_local = $this->is_local_url( $style->src );
		0 ignored issues – show Coding Style introduced 2017-11-09 21:41 UTC by Report Bug Copy Issue Report Equals sign not aligned correctly; expected 1 space but found 7 spaces This check looks for improperly formatted assignments. Every assignment must have exactly one space before and one space after the equals operator. To illustrate: $a = "a"; $ab = "ab"; $abc = "abc"; will have no issues, while $a = "a"; $ab = "ab"; $abc = "abc"; will report issues in lines 1 and 2. Loading history...
227		// don't concat conditional styles
228		$is_conditional = isset( $style->extra['conditional'] );
229		return apply_filters( 'jetpack_perf_concat_style', $is_local && ! $is_conditional, $style->handle, $style->src );
230		}
231
232		private function is_local_url( $url ) {
233		$site_url = site_url();
234		return ( strncmp( $url, '/', 1 ) === 0 && strncmp( $url, '//', 2 ) !== 0 )
235		\|\| strpos( $url, $site_url ) === 0;
236		}
237		}

Automattic / jetpack

Push — add/asset-cdn ( 3744fe...92b739 )

Asset_CDN::encode_files_param() A

Complexity

Size

Duplication

Importance

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