theme-optimizations.php ➔ wpcom_is_pub_theme() - Code Metrics - Inspection of "Add protection" - Automattic/jetpack - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — add/custom-footer-credit ( e10c01...2f6095 )

unknown

created 2016-10-21 13:49 UTC

theme-optimizations.php ➔ wpcom_is_pub_theme() A

↳ Parent: Project

Complexity

Conditions	1
Paths	1

Size

Total Lines	3
Code Lines	2

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
cc	1
eloc	2
nc	1
nop	0
dl	0
loc	3
rs	10
c	0
b	0
f	0

<?php

if( ! function_exists ( 'wpcom_is_vip' ) ){
	function wpcom_is_vip() {
		return false;
	}
}
if( ! function_exists ( 'wpcom_is_pub_theme' ) ){
	function wpcom_is_pub_theme() {
		return false;
	}
}
if( ! function_exists ( 'wpcom_is_premium_theme' ) ){
	function wpcom_is_premium_theme() {
		return false;
	}
}
if( ! function_exists ( 'wpcom_is_vip_theme' ) ){
	function wpcom_is_vip_theme() {
		return false;
	}
}
if( ! function_exists ( 'wpcom_is_a8c_theme' ) ){
	function wpcom_is_a8c_theme() {
		return false;
	}
}
/**
 * Create an output buffer to capture the HTML content of the footer.php theme
 * template. Used to change links, text, run a/b tests. Etc.
 *
 * @param string $page The HTML content from footer.php template file.
 * @return string $page HTML content.
 */
function wpcom_better_footer_links_buffer( $page ) {
	// Only add theme and colophon links for pub and premium themes, and VIP "partner" themes.
	if ( ! wpcom_is_pub_theme() && ! wpcom_is_premium_theme() && ! wpcom_is_vip_theme() && ! wpcom_is_a8c_theme() ) {
		return $page;
	}

	// Would like to only see footer content before wp_footer output.
	$output = preg_split( '/wpcom_wp_footer/i', $page, 2 );

	// Run "better link" filters.
	$footer = wpcom_better_footer_links( $output[0] );

	// Piece back together again.
	$page = implode( array( $footer, 'wpcom_wp_footer' . $output[1] ) );

	// If nothing to join, return empty string.
	if ( 'wpcom_wp_footer' === $page ) {
		return '';
	}

	// Replace any dangling references of glue code.
	$page = preg_replace( '/wpcom_wp_footer/i', '', $page );

	return $page;
}

/**
 * Better WP.com footer links.
 *
 * 1. Replace default "Powered by WordPress" text and link with
 * a link to WordPress.com and custom call-out text.
 *
 * 2. Replace theme name in footer with a link to relevant theme page on the Theme Showcase.
 * URL structure: http://theme.wordpress.com/themes/{theme-slug}/
 *
 * 3. Link to the Vertical landing page for sites that are stickered with a vertical.
 *
 * @param string $footer Footer HTML content to filter.
 * @return string $footer Filtered HTML content.
 */
function wpcom_better_footer_links( $footer ) {
	// Only add theme and colophon links for pub and premium themes, and VIP "partner" themes.
	if ( ! wpcom_is_pub_theme() && ! wpcom_is_premium_theme() && ! wpcom_is_vip_theme() && ! wpcom_is_a8c_theme() ) {
		return $footer;
	}

	// Get current theme data.
	$theme = wp_get_theme();

	// Replace separator from content, since we are replacing theme and designer credits.
	// Any span separator with a .sep class will be matched and replaced by the regular expression.
	$footer = preg_replace("/\s\|\s(?=\<a)|\<span class=\"([^\"]+\s)?sep(\s[^\"]+)?\">.*<\/span>/i", '', $footer);

	// Handle WP.com footer text.
	$lang = get_bloginfo( 'language' );

	$_blog_id = get_current_blog_id();
	$vertical = site_vertical( $_blog_id );

	$noads = defined( 'NOADVERTS' ) || defined( 'NOADSUPGRADE' );
	if ( $vertical ) {
		if ( $noads ) {
			$credit_link = sprintf( '<a href="%s">%s.</a>', localized_wpcom_url( 'https://wordpress.com/' . $vertical . '/?ref=vertical_footer', $lang ), __( 'Blog at WordPress.com' ) );
		} else {
			$credit_link = sprintf( '<a href="%s">%s.</a>', localized_wpcom_url( 'https://wordpress.com/' . $vertical . '/?ref=vertical_footer', $lang ), __( 'Create a free website at WordPress.com' ) );
		}
	} else if ( $noads || mt_rand( 0, 1 ) ) {
		$credit_link = sprintf( '<a href="%s">%s.</a>', localized_wpcom_url( 'https://wordpress.com/?ref=footer_blog', $lang ), __( 'Blog at WordPress.com' ) );
	} else {
		$credit_link = sprintf( '<a href="%s">%s.</a>', localized_wpcom_url( 'https://wordpress.com/?ref=footer_website', $lang ), __( 'Create a free website or blog at WordPress.com' ) );
	}

	// Replace credit link in footer, and make sure it is replaced only once, to avoid duplicates.
	$credit_link = apply_filters( 'wpcom_better_footer_credit_link', $credit_link, $lang );

	// The regular expression to match the credit link replacement.
	$credit_regex = implode( '', array(
		'#' , // Open delimiter
			'<a[^>]*href="http(s?)://(([a-z]{2}|www)\.)?(wordpress|wordpress-fr|wpfr)\.(com|org|net)/?"([^>]+)?>' , // Opening link tag
			    '\s*'   , // Optional whitespace
			    '(.+?)' , // Any word or sentence
			    '\s*'   , // Optional whitespace
			'</a>'      , // Closing link tag
			'\.?'       , // Optional period
			'(\s*&[^;]+;\s*)?' , // Optional HTML Entity
		'#i' , // Ending delimiter & modifier
	) );

	// Add filter for specific themes that may need to tweak the regex a bit.
	$credit_regex = apply_filters( 'wpcom_better_footer_credit_regex', $credit_regex, $theme );

	// Get the full matches of the credit regular expression, proceed if match.
	if ( preg_match_all( $credit_regex, $footer, $matches, PREG_OFFSET_CAPTURE ) ) {

		// Get last match and offset.
		$match = array_pop( $matches[0] );
		$offset = $match[1];

		// Split the content into two parts, which we will join later on.
		$before = substr( $footer, 0, $offset );
		$after = substr( $footer, $offset );

		// Replace on the last part. Ensure we only do one replacement to avoid duplicates.
		$after = preg_replace( $credit_regex, $credit_link, $after, 1 );

		// Join the two parts.
		$footer = $before . $after;

	}

	// Themes that have duplicate footer credit links (e.g. "Powered by WordPress.com" + another credit link).
	$powered_by_themes = array(
		'pub/toujours',
	);

	// Remove "Proudly powered by WordPress" on selected themes.
	if ( in_array( $theme->stylesheet, $powered_by_themes ) ) {
		$powered_string = preg_quote( __( 'Proudly powered by WordPress' ), '#' );
		$powered_regex = sprintf( '#<a[^>]*href="http(s?)://(([a-z]{2}|www)\.)?wordpress\.(com|org)/?"([^>]+)?>%s</a>\.?#i', $powered_string );
		$footer = preg_replace( $powered_regex, '', $footer );
	}

	// Only add theme and colophon link for pub and premium themes.
	if ( wpcom_is_vip_theme() ) {
		return $footer;
	}

	// Handle adding Theme Name and colophon link to footer text.
	$theme_match = sprintf(
		'(?:\s*\|\s*)?'       . // Optional pipe with spaces (non-capturing)
		'(?:<span\s[^>]+>)?'  . // Optional opening span tag (non-capturing)
		'(Theme|%s)'          . // $1: "Theme" or the localized equivalent
		'\s*(?:&nbsp;)?:\s*'  . // Zero or more whitespace characters, a colon, zero or more whitespace characters
		'(%s|<a[^>]+>%s</a>)' . // $2: The theme name, or link
		'\.?'                 . // Optional period
		'(?:</span>)?'        . // Optional closing span tag (non-capturing)
		'\.?'                   // Optional period

		, preg_quote( __( 'Theme' ), '#' )
		, preg_quote( $theme->name, '#' )
		, preg_quote( $theme->name, '#' )
	);

	// Theme designer match.
	$designer_match = $theme_match . sprintf(
		'('                       . // Start $3
		    '\s*'                 . // Zero or more whitespace characters
		    '(?:<span\s[^>]+>)?'  . // Optional opening span tag (non-capturing)
		    '(?:by|%s)'           . // "by" or the localized equivalent (non-capturing)
		    '(?:</span>)?'        . // Optional closing span tag (non-capturing)
		    '\s*'                 . // Zero or more whitespace characters
		    '(<a[^>]+>.+?</a>)?'  . // $4: Maybe a full <a> element
		')'                       . // End $3
		'\.?'                       // Optional period

		, preg_quote( __( 'by' ), '#' ) // localized "by" preposition
	);

	// Match "Design by <shop>".
	$design_by = preg_quote( $credit_link, '#' ) . sprintf(
		'\.?'                . // Optional period
		'\s*'                . // Optional whitespace
		'(Design by|%s)'     . // "Design by" or localized equivalent
		'\s*'                . // Optional whitespace
		'(<a[^>]+>.+?</a>)'  . // Full link element
		'\.?'                  // Optional period

		, preg_quote( __( 'Design by' ), '#' )
	);

	if ( preg_match( "#$designer_match#i", $footer ) ) {
		$footer = preg_replace( "#$designer_match#i", '', $footer, 1 );
	}

	if ( preg_match( "#$theme_match#i", $footer ) ) {
		$footer = preg_replace( "#$theme_match#i", '', $footer, 1 );
	}

	if ( preg_match( "#$design_by#i", $footer ) ) {
		$footer = preg_replace( "#$design_by#i", $credit_link, $footer, 1 );
	}

	return $footer;
}

// Enable filters for footer content for all themes, except VIP sites.
function better_wpcom_link_init() {
	if ( ! wpcom_is_vip() )
		ob_start( 'wpcom_better_footer_links_buffer' );
}
add_action( 'get_footer', 'better_wpcom_link_init' );

// Enable filters on those themes that need special treatment.
function better_wpcom_link_workarounds_init() {
	if ( function_exists( 'blogly_widgets_init' ) && 'premium/blogly' === wp_get_theme()->stylesheet ) {
		add_action( 'get_sidebar', 'better_wpcom_link_init' );
	}
	if ( function_exists( 'designer_widgets_init' ) && 'premium/designer' === wp_get_theme()->stylesheet ) {
		add_action( 'get_header', 'better_wpcom_link_init' );
	}
}
add_action( 'init', 'better_wpcom_link_workarounds_init' );

// Enable filters Infinite Scroll footer conntent, except VIP sites.
//if ( ! wpcom_is_vip() ) {
	add_filter( 'infinite_scroll_credit', 'wpcom_better_footer_links' );
//}

/**
 * Filters the default footer credits regex.
 *
 * @param string $credit_regex The regular expression for the footer credit.
 * @param object $theme The object returned by `wp_get_theme()`
 * @return string
 */
function wpcom_better_footer_credit_regex_filter( $credit_regex, $theme ) {
	// Twotone renders the social menu after the credit links. If there is a WordPress.com link in the menu,
	// it will break the footer credits. Adding a space before the actual link fixes this.
	if ( 'premium/twotone' === $theme->stylesheet ) {
		$credit_regex = str_replace( '#<a', '#\s<a', $credit_regex );
	}
	return $credit_regex;
}
add_filter( 'wpcom_better_footer_credit_regex', 'wpcom_better_footer_credit_regex_filter', 10, 2 );

/**
 * Add an HTML comment flag for wp_footer output so that our footer replacement
 * script knows when to stop looking for more footer content.
 */
function wpcom_footer_html_comment_flag() {
	echo "<!-- wpcom_wp_footer -->\n";
}
add_action( 'wp_footer', 'wpcom_footer_html_comment_flag', 9 );

/**
 * Add theme name to Twenty Ten footer
 */
function wpcomthemes_twentyten_credits() {
	echo 'Theme: Twenty Ten'; // leave untranslated for regex match, will be translated in final output
}
add_action( 'twentyten_credits', 'wpcomthemes_twentyten_credits' );

/**
 * Add theme name to Twenty Eleven footer
 */
function wpcomthemes_twentyeleven_credits() {
	echo 'Theme: Twenty Eleven <span class="sep"> | </span>'; // leave untranslated for regex match, will be translated in final output
}
add_action( 'twentyeleven_credits', 'wpcomthemes_twentyeleven_credits' );

/**
 * Add theme name to Twenty Twelve footer
 */
function wpcomthemes_twentytwelve_credits() {
	echo 'Theme: Twenty Twelve.'; // leave untranslated for regex match, will be translated in final output
}
add_action( 'twentytwelve_credits', 'wpcomthemes_twentytwelve_credits' );

/**
 * Add theme name to Twenty Thirteen footer
 */
function wpcomthemes_twentythirteen_credits() {
	echo 'Theme: Twenty Thirteen.'; // leave untranslated for regex match, will be translated in final output
}
add_action( 'twentythirteen_credits', 'wpcomthemes_twentythirteen_credits' );

/**
 * Add theme name to Twenty Fourteen footer
 */
function wpcomthemes_twentyfourteen_credits() {
	echo 'Theme: Twenty Fourteen.'; // leave untranslated for regex match, will be translated in final output
}
add_action( 'twentyfourteen_credits', 'wpcomthemes_twentyfourteen_credits' );

/**
 * Add theme name to Twenty Fifteen footer
 */
function wpcomthemes_twentyfifteen_credits() {
	echo 'Theme: Twenty Fifteen.'; // leave untranslated for regex match, will be translated in final output
}
add_action( 'twentyfifteen_credits', 'wpcomthemes_twentyfifteen_credits' );

/**
 * Add theme name to Twenty Sixteen footer
 */
function wpcomthemes_twentysixteen_credits() {
	echo 'Theme: Twenty Sixteen.'; // leave untranslated for regex match, will be translated in final output
}
add_action( 'twentysixteen_credits', 'wpcomthemes_twentysixteen_credits' );



1			<?php
2
3			if( ! function_exists ( 'wpcom_is_vip' ) ){
4			function wpcom_is_vip() {
5			return false;
6			}
7			}
8			if( ! function_exists ( 'wpcom_is_pub_theme' ) ){
9			function wpcom_is_pub_theme() {
10			return false;
11			}
12			}
13			if( ! function_exists ( 'wpcom_is_premium_theme' ) ){
14			function wpcom_is_premium_theme() {
15			return false;
16			}
17			}
18			if( ! function_exists ( 'wpcom_is_vip_theme' ) ){
19			function wpcom_is_vip_theme() {
20			return false;
21			}
22			}
23			if( ! function_exists ( 'wpcom_is_a8c_theme' ) ){
24			function wpcom_is_a8c_theme() {
25			return false;
26			}
27			}
28			/**
29			* Create an output buffer to capture the HTML content of the footer.php theme
30			* template. Used to change links, text, run a/b tests. Etc.
31			*
32			* @param string $page The HTML content from footer.php template file.
33			* @return string $page HTML content.
34			*/
35			function wpcom_better_footer_links_buffer( $page ) {
36			// Only add theme and colophon links for pub and premium themes, and VIP "partner" themes.
37			if ( ! wpcom_is_pub_theme() && ! wpcom_is_premium_theme() && ! wpcom_is_vip_theme() && ! wpcom_is_a8c_theme() ) {
38			return $page;
39			}
40
41			// Would like to only see footer content before wp_footer output.
42			$output = preg_split( '/wpcom_wp_footer/i', $page, 2 );
43
44			// Run "better link" filters.
45			$footer = wpcom_better_footer_links( $output[0] );
46
47			// Piece back together again.
48			$page = implode( array( $footer, 'wpcom_wp_footer' . $output[1] ) );
49
50			// If nothing to join, return empty string.
51			if ( 'wpcom_wp_footer' === $page ) {
52			return '';
53			}
54
55			// Replace any dangling references of glue code.
56			$page = preg_replace( '/wpcom_wp_footer/i', '', $page );
57
58			return $page;
59			}
60
61			/**
62			* Better WP.com footer links.
63			*
64			* 1. Replace default "Powered by WordPress" text and link with
65			* a link to WordPress.com and custom call-out text.
66			*
67			* 2. Replace theme name in footer with a link to relevant theme page on the Theme Showcase.
68			* URL structure: http://theme.wordpress.com/themes/{theme-slug}/
69			*
70			* 3. Link to the Vertical landing page for sites that are stickered with a vertical.
71			*
72			* @param string $footer Footer HTML content to filter.
73			* @return string $footer Filtered HTML content.
74			*/
75			function wpcom_better_footer_links( $footer ) {
76			// Only add theme and colophon links for pub and premium themes, and VIP "partner" themes.
77			if ( ! wpcom_is_pub_theme() && ! wpcom_is_premium_theme() && ! wpcom_is_vip_theme() && ! wpcom_is_a8c_theme() ) {
78			return $footer;
79			}
80
81			// Get current theme data.
82			$theme = wp_get_theme();
83
84			// Replace separator from content, since we are replacing theme and designer credits.
85			// Any span separator with a .sep class will be matched and replaced by the regular expression.
86			$footer = preg_replace("/\s\\|\s(?=\<a)\|\<span class=\"([^\"]+\s)?sep(\s[^\"]+)?\">.*<\/span>/i", '', $footer);
87
88			// Handle WP.com footer text.
89			$lang = get_bloginfo( 'language' );
90
91			$_blog_id = get_current_blog_id();
92			$vertical = site_vertical( $_blog_id );
93
94			$noads = defined( 'NOADVERTS' ) \|\| defined( 'NOADSUPGRADE' );
95			if ( $vertical ) {
96			if ( $noads ) {
97			$credit_link = sprintf( '<a href="%s">%s.</a>', localized_wpcom_url( 'https://wordpress.com/' . $vertical . '/?ref=vertical_footer', $lang ), __( 'Blog at WordPress.com' ) );
98			} else {
99			$credit_link = sprintf( '<a href="%s">%s.</a>', localized_wpcom_url( 'https://wordpress.com/' . $vertical . '/?ref=vertical_footer', $lang ), __( 'Create a free website at WordPress.com' ) );
100			}
101			} else if ( $noads \|\| mt_rand( 0, 1 ) ) {
102			$credit_link = sprintf( '<a href="%s">%s.</a>', localized_wpcom_url( 'https://wordpress.com/?ref=footer_blog', $lang ), __( 'Blog at WordPress.com' ) );
103			} else {
104			$credit_link = sprintf( '<a href="%s">%s.</a>', localized_wpcom_url( 'https://wordpress.com/?ref=footer_website', $lang ), __( 'Create a free website or blog at WordPress.com' ) );
105			}
106
107			// Replace credit link in footer, and make sure it is replaced only once, to avoid duplicates.
108			$credit_link = apply_filters( 'wpcom_better_footer_credit_link', $credit_link, $lang );
109
110			// The regular expression to match the credit link replacement.
111			$credit_regex = implode( '', array(
112			'#' , // Open delimiter
113			'<a[^>]*href="http(s?)://(([a-z]{2}\|www)\.)?(wordpress\|wordpress-fr\|wpfr)\.(com\|org\|net)/?"([^>]+)?>' , // Opening link tag
114			'\s*' , // Optional whitespace
115			'(.+?)' , // Any word or sentence
116			'\s*' , // Optional whitespace
117			'</a>' , // Closing link tag
118			'\.?' , // Optional period
119			'(\s&[^;]+;\s)?' , // Optional HTML Entity
120			'#i' , // Ending delimiter & modifier
121			) );
122
123			// Add filter for specific themes that may need to tweak the regex a bit.
124			$credit_regex = apply_filters( 'wpcom_better_footer_credit_regex', $credit_regex, $theme );
125
126			// Get the full matches of the credit regular expression, proceed if match.
127			if ( preg_match_all( $credit_regex, $footer, $matches, PREG_OFFSET_CAPTURE ) ) {
128
129			// Get last match and offset.
130			$match = array_pop( $matches[0] );
131			$offset = $match[1];
132
133			// Split the content into two parts, which we will join later on.
134			$before = substr( $footer, 0, $offset );
135			$after = substr( $footer, $offset );
136
137			// Replace on the last part. Ensure we only do one replacement to avoid duplicates.
138			$after = preg_replace( $credit_regex, $credit_link, $after, 1 );
139
140			// Join the two parts.
141			$footer = $before . $after;
142
143			}
144
145			// Themes that have duplicate footer credit links (e.g. "Powered by WordPress.com" + another credit link).
146			$powered_by_themes = array(
147			'pub/toujours',
148			);
149
150			// Remove "Proudly powered by WordPress" on selected themes.
151			if ( in_array( $theme->stylesheet, $powered_by_themes ) ) {
152			$powered_string = preg_quote( __( 'Proudly powered by WordPress' ), '#' );
153			$powered_regex = sprintf( '#<a[^>]*href="http(s?)://(([a-z]{2}\|www)\.)?wordpress\.(com\|org)/?"([^>]+)?>%s</a>\.?#i', $powered_string );
154			$footer = preg_replace( $powered_regex, '', $footer );
155			}
156
157			// Only add theme and colophon link for pub and premium themes.
158			if ( wpcom_is_vip_theme() ) {
159			return $footer;
160			}
161
162			// Handle adding Theme Name and colophon link to footer text.
163			$theme_match = sprintf(
164			'(?:\s\\|\s)?' . // Optional pipe with spaces (non-capturing)
165			'(?:<span\s[^>]+>)?' . // Optional opening span tag (non-capturing)
166			'(Theme\|%s)' . // $1: "Theme" or the localized equivalent
167			'\s(?: )?:\s' . // Zero or more whitespace characters, a colon, zero or more whitespace characters
168			'(%s\|<a[^>]+>%s</a>)' . // $2: The theme name, or link
169			'\.?' . // Optional period
170			'(?:</span>)?' . // Optional closing span tag (non-capturing)
171			'\.?' // Optional period
172
173			, preg_quote( __( 'Theme' ), '#' )
174			, preg_quote( $theme->name, '#' )
175			, preg_quote( $theme->name, '#' )
176			);
177
178			// Theme designer match.
179			$designer_match = $theme_match . sprintf(
180			'(' . // Start $3
181			'\s*' . // Zero or more whitespace characters
182			'(?:<span\s[^>]+>)?' . // Optional opening span tag (non-capturing)
183			'(?:by\|%s)' . // "by" or the localized equivalent (non-capturing)
184			'(?:</span>)?' . // Optional closing span tag (non-capturing)
185			'\s*' . // Zero or more whitespace characters
186			'(<a[^>]+>.+?</a>)?' . // $4: Maybe a full <a> element
187			')' . // End $3
188			'\.?' // Optional period
189
190			, preg_quote( __( 'by' ), '#' ) // localized "by" preposition
191			);
192
193			// Match "Design by <shop>".
194			$design_by = preg_quote( $credit_link, '#' ) . sprintf(
195			'\.?' . // Optional period
196			'\s*' . // Optional whitespace
197			'(Design by\|%s)' . // "Design by" or localized equivalent
198			'\s*' . // Optional whitespace
199			'(<a[^>]+>.+?</a>)' . // Full link element
200			'\.?' // Optional period
201
202			, preg_quote( __( 'Design by' ), '#' )
203			);
204
205			if ( preg_match( "#$designer_match#i", $footer ) ) {
206			$footer = preg_replace( "#$designer_match#i", '', $footer, 1 );
207			}
208
209			if ( preg_match( "#$theme_match#i", $footer ) ) {
210			$footer = preg_replace( "#$theme_match#i", '', $footer, 1 );
211			}
212
213			if ( preg_match( "#$design_by#i", $footer ) ) {
214			$footer = preg_replace( "#$design_by#i", $credit_link, $footer, 1 );
215			}
216
217			return $footer;
218			}
219
220			// Enable filters for footer content for all themes, except VIP sites.
221			function better_wpcom_link_init() {
222			if ( ! wpcom_is_vip() )
223			ob_start( 'wpcom_better_footer_links_buffer' );
224			}
225			add_action( 'get_footer', 'better_wpcom_link_init' );
226
227			// Enable filters on those themes that need special treatment.
228			function better_wpcom_link_workarounds_init() {
229			if ( function_exists( 'blogly_widgets_init' ) && 'premium/blogly' === wp_get_theme()->stylesheet ) {
230			add_action( 'get_sidebar', 'better_wpcom_link_init' );
231			}
232			if ( function_exists( 'designer_widgets_init' ) && 'premium/designer' === wp_get_theme()->stylesheet ) {
233			add_action( 'get_header', 'better_wpcom_link_init' );
234			}
235			}
236			add_action( 'init', 'better_wpcom_link_workarounds_init' );
237
238			// Enable filters Infinite Scroll footer conntent, except VIP sites.
239			//if ( ! wpcom_is_vip() ) {
240			add_filter( 'infinite_scroll_credit', 'wpcom_better_footer_links' );
241			//}
242
243			/**
244			* Filters the default footer credits regex.
245			*
246			* @param string $credit_regex The regular expression for the footer credit.
247			* @param object $theme The object returned by `wp_get_theme()`
248			* @return string
249			*/
250			function wpcom_better_footer_credit_regex_filter( $credit_regex, $theme ) {
251			// Twotone renders the social menu after the credit links. If there is a WordPress.com link in the menu,
252			// it will break the footer credits. Adding a space before the actual link fixes this.
253			if ( 'premium/twotone' === $theme->stylesheet ) {
254			$credit_regex = str_replace( '#<a', '#\s<a', $credit_regex );
255			}
256			return $credit_regex;
257			}
258			add_filter( 'wpcom_better_footer_credit_regex', 'wpcom_better_footer_credit_regex_filter', 10, 2 );
259
260			/**
261			* Add an HTML comment flag for wp_footer output so that our footer replacement
262			* script knows when to stop looking for more footer content.
263			*/
264			function wpcom_footer_html_comment_flag() {
265			echo "<!-- wpcom_wp_footer -->\n";
266			}
267			add_action( 'wp_footer', 'wpcom_footer_html_comment_flag', 9 );
268
269			/**
270			* Add theme name to Twenty Ten footer
271			*/
272			function wpcomthemes_twentyten_credits() {
273			echo 'Theme: Twenty Ten'; // leave untranslated for regex match, will be translated in final output
274			}
275			add_action( 'twentyten_credits', 'wpcomthemes_twentyten_credits' );
276
277			/**
278			* Add theme name to Twenty Eleven footer
279			*/
280			function wpcomthemes_twentyeleven_credits() {
281			echo 'Theme: Twenty Eleven <span class="sep"> \| </span>'; // leave untranslated for regex match, will be translated in final output
282			}
283			add_action( 'twentyeleven_credits', 'wpcomthemes_twentyeleven_credits' );
284
285			/**
286			* Add theme name to Twenty Twelve footer
287			*/
288			function wpcomthemes_twentytwelve_credits() {
289			echo 'Theme: Twenty Twelve.'; // leave untranslated for regex match, will be translated in final output
290			}
291			add_action( 'twentytwelve_credits', 'wpcomthemes_twentytwelve_credits' );
292
293			/**
294			* Add theme name to Twenty Thirteen footer
295			*/
296			function wpcomthemes_twentythirteen_credits() {
297			echo 'Theme: Twenty Thirteen.'; // leave untranslated for regex match, will be translated in final output
298			}
299			add_action( 'twentythirteen_credits', 'wpcomthemes_twentythirteen_credits' );
300
301			/**
302			* Add theme name to Twenty Fourteen footer
303			*/
304			function wpcomthemes_twentyfourteen_credits() {
305			echo 'Theme: Twenty Fourteen.'; // leave untranslated for regex match, will be translated in final output
306			}
307			add_action( 'twentyfourteen_credits', 'wpcomthemes_twentyfourteen_credits' );
308
309			/**
310			* Add theme name to Twenty Fifteen footer
311			*/
312			function wpcomthemes_twentyfifteen_credits() {
313			echo 'Theme: Twenty Fifteen.'; // leave untranslated for regex match, will be translated in final output
314			}
315			add_action( 'twentyfifteen_credits', 'wpcomthemes_twentyfifteen_credits' );
316
317			/**
318			* Add theme name to Twenty Sixteen footer
319			*/
320			function wpcomthemes_twentysixteen_credits() {
321			echo 'Theme: Twenty Sixteen.'; // leave untranslated for regex match, will be translated in final output
322			}
323			add_action( 'twentysixteen_credits', 'wpcomthemes_twentysixteen_credits' );
324
325

Automattic / jetpack

Push — add/custom-footer-credit ( e10c01...2f6095 )

theme-optimizations.php ➔ wpcom_is_pub_theme() A

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