do-functions.php ➔ imgix_replace_non_wp_images() - Code Metrics - Inspection of "master" - imgix-wordpress/images-via-imgix - Measure and Improve Code Quality continuously with Scrutinizer

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Push — master ( e47ebd...1dc9c8 )

by LA

created 2017-01-28 19:13 UTC

do-functions.php ➔ imgix_replace_non_wp_images() C

↳ Parent: Project

Complexity

Conditions	8
Paths	2

Size

Total Lines	44
Code Lines	24

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
cc	8
eloc	24
nc	2
nop	1
dl	0
loc	44
rs	5.3846
c	0
b	0
f	0

<?php
/**
 *
 * @package imgix
 */

/**
 * Find all img tags with sources matching "imgix.net" without the parameter
 * "srcset" and add the "srcset" parameter to all those images, appending a new
 * source using the "dpr=2" modifier.
 *
 * @param $content
 *
 * @return string Content with retina-enriched image tags.
 */
function imgix_add_retina( $content ) {
	$pattern = '/<img((?![^>]+srcset )([^>]*)';
	$pattern .= 'src=[\'"]([^\'"]*imgix.net[^\'"]*\?[^\'"]*w=[^\'"]*)[\'"]([^>]*)*?)>/i';
	$repl    = '<img$2src="$3" srcset="${3}, ${3}&amp;dpr=2 2x, ${3}&amp;dpr=3 3x,"$4>';
	$content = preg_replace( $pattern, $repl, $content );

	return preg_replace( $pattern, $repl, $content );
}

/**
 * Returns a array of global parameters to be applied in all images,
 * according to plugin's settings.
 *
 * @return array Global parameters to be appened at the end of each img URL.
 */
function imgix_get_global_params() {
	global $imgix_options;

	$params = [];
	// For now, only "auto" is supported.

	$auto = [];
	if ( ! empty( $imgix_options['auto_format'] ) ) {
		array_push( $auto, 'format' );
	}

	if ( ! empty( $imgix_options['auto_enhance'] ) ) {
		array_push( $auto, 'enhance' );
	}

	if ( ! empty( $auto ) ) {
		$params['auto'] = implode( ',', $auto );
	}

	return $params;
}

/**
 * Convert sizes in filename to parameters and returns origina filename without sizes.
 * If no size is found the original filename is returned.
 *
 * @param string $filename
 *
 * @return array with filename and size arguments.
 */
function convert_filename_to_size_args( $filename ) {
	$arguments = [];

	$filename = preg_replace_callback( '/-(?<width>\d+)x(?<height>\d+)(?<extension>\.\w{3,4}$)/', function ( $match ) use ( &$arguments ) {
		$arguments = [
			'w' => $match['width'],
			'h' => $match['height']
		];

		return $match['extension'];
	}, $filename );

	return [ $filename, $arguments ];
}

/**
 * Modify image urls for attachments to use imgix host.
 *
 * @param string $url
 *
 * @return string
 */
function imgix_file_url( $url ) {

	global $imgix_options;

	if ( empty ( $imgix_options['cdn_link'] ) ) {
		return $url;
	}

	$file = pathinfo( $url );

	if ( in_array( $file['extension'], [ 'jpg', 'gif', 'png', 'jpeg' ] ) ) {
		return str_replace( trailingslashit( home_url( '/' ) ), trailingslashit( $imgix_options['cdn_link'] ), $url );
	}

	return $url;
}

add_filter( 'wp_get_attachment_url', 'imgix_file_url' );
add_filter( 'imgix/add-image-url', 'imgix_file_url' );

/**
 * Modify image urls in srcset to use imgix host.
 *
 * @param array $sources
 *
 * @return array $sources
 */
function imgix_cdn_srcset( $sources ) {
	foreach ( $sources as $source ) {
		$sources[ $source['value'] ]['url'] = apply_filters( 'imgix/add-image-url', $sources[ $source['value'] ]['url'] );
	}

	return $sources;
}

add_filter( 'wp_calculate_image_srcset', 'imgix_cdn_srcset', 10 );

/**
 * Modify image urls in content to use imgix host.
 *
 * @param $content
 *
 * @return string
 */
function imgix_replace_non_wp_images( $content ) {
	global $imgix_options;

	if ( ! empty( $imgix_options['cdn_link'] ) ) {

		$content = preg_replace_callback( '/(?<=\shref="|\ssrc="|\shref=\'|\ssrc=\').*(?=\'|")/', function ( $match ) use ( $imgix_options ) {
			$url = $match[0];

			$pathinfo = pathinfo( $url );

			if ( in_array( $pathinfo['extension'], [ 'jpg', 'gif', 'png', 'jpeg' ], true ) ) {
				$file_url = parse_url( $url );
				if ( $file_url['host'] === parse_url( home_url( '/' ), PHP_URL_HOST ) ) {
					$cdn = parse_url( $imgix_options['cdn_link'] );
					foreach ( [ 'scheme', 'host', 'port' ] as $url_part ) {
						if ( isset( $cdn[ $url_part ] ) ) {
							$file_url[ $url_part ] = $cdn[ $url_part ];
						} else {
							unset( $file_url[ $url_part ] );
						}
					}

					list( $filename, $arguments ) = convert_filename_to_size_args( $pathinfo['basename'] );

					$arguments = array_merge( $arguments, imgix_get_global_params() );

					$file_url['path'] = trailingslashit( dirname( $file_url['path'] ) ) . $filename;

					if ( ! empty( $arguments ) ) {
						$file_url['query'] = empty( $file_url['query'] ) ? build_query( $arguments ) : $file_url['query'] . '&' . build_query( $arguments );
					}

					$url = http_build_url( $file_url );
<?php

function getDate($date)
{
    if ($date !== null) {
        return new DateTime($date);
    }

    return false;
}
				}
			}


			return esc_url_raw( $url );
		}, $content );

	}

	return $content;
}

add_filter( 'the_content', 'imgix_replace_non_wp_images' );

function imgix_wp_head() {
	global $imgix_options;

	if ( isset( $imgix_options['cdn_link'] ) && $imgix_options['cdn_link'] ) {
		printf( "<link rel='dns-prefetch' href='%s'/>",
			esc_url( preg_replace( '/^https?:/', '', untrailingslashit( $imgix_options['cdn_link'] ) ) )
		);
	}
}

add_action( 'wp_head', 'imgix_wp_head', 1 );

if ( isset( $imgix_options['add_dpi2_srcset'] ) && $imgix_options['add_dpi2_srcset'] ) {
	function imgix_buffer_start() {
		ob_start( 'imgix_add_retina' );
	}

	function imgix_buffer_end() {
		ob_end_flush();
	}

	add_action( 'after_setup_theme', 'imgix_buffer_start' );
	add_action( 'shutdown', 'imgix_buffer_end' );
	add_filter( 'the_content', 'imgix_add_retina' );
}


1			<?php
2			/**
3			*
4			* @package imgix
5			*/
6
7			/**
8			* Find all img tags with sources matching "imgix.net" without the parameter
9			* "srcset" and add the "srcset" parameter to all those images, appending a new
10			* source using the "dpr=2" modifier.
11			*
12			* @param $content
13			*
14			* @return string Content with retina-enriched image tags.
15			*/
16			function imgix_add_retina( $content ) {
17			$pattern = '/<img((?![^>]+srcset )([^>]*)';
18			$pattern .= 'src=[\'"]([^\'"]imgix.net[^\'"]\?[^\'"]w=[^\'"])[\'"]([^>])?)>/i';
19			$repl = '<img$2src="$3" srcset="${3}, ${3}&dpr=2 2x, ${3}&dpr=3 3x,"$4>';
20			$content = preg_replace( $pattern, $repl, $content );
21
22			return preg_replace( $pattern, $repl, $content );
23			}
24
25			/**
26			* Returns a array of global parameters to be applied in all images,
27			* according to plugin's settings.
28			*
29			* @return array Global parameters to be appened at the end of each img URL.
30			*/
31			function imgix_get_global_params() {
32			global $imgix_options;
33
34			$params = [];
35			// For now, only "auto" is supported.
36
37			$auto = [];
38			if ( ! empty( $imgix_options['auto_format'] ) ) {
39			array_push( $auto, 'format' );
40			}
41
42			if ( ! empty( $imgix_options['auto_enhance'] ) ) {
43			array_push( $auto, 'enhance' );
44			}
45
46			if ( ! empty( $auto ) ) {
47			$params['auto'] = implode( ',', $auto );
48			}
49
50			return $params;
51			}
52
53			/**
54			* Convert sizes in filename to parameters and returns origina filename without sizes.
55			* If no size is found the original filename is returned.
56			*
57			* @param string $filename
58			*
59			* @return array with filename and size arguments.
60			*/
61			function convert_filename_to_size_args( $filename ) {
62			$arguments = [];
63
64			$filename = preg_replace_callback( '/-(?<width>\d+)x(?<height>\d+)(?<extension>\.\w{3,4}$)/', function ( $match ) use ( &$arguments ) {
65			$arguments = [
66			'w' => $match['width'],
67			'h' => $match['height']
68			];
69
70			return $match['extension'];
71			}, $filename );
72
73			return [ $filename, $arguments ];
74			}
75
76			/**
77			* Modify image urls for attachments to use imgix host.
78			*
79			* @param string $url
80			*
81			* @return string
82			*/
83			function imgix_file_url( $url ) {
84
85			global $imgix_options;
86
87			if ( empty ( $imgix_options['cdn_link'] ) ) {
88			return $url;
89			}
90
91			$file = pathinfo( $url );
92
93			if ( in_array( $file['extension'], [ 'jpg', 'gif', 'png', 'jpeg' ] ) ) {
94			return str_replace( trailingslashit( home_url( '/' ) ), trailingslashit( $imgix_options['cdn_link'] ), $url );
95			}
96
97			return $url;
98			}
99
100			add_filter( 'wp_get_attachment_url', 'imgix_file_url' );
101			add_filter( 'imgix/add-image-url', 'imgix_file_url' );
102
103			/**
104			* Modify image urls in srcset to use imgix host.
105			*
106			* @param array $sources
107			*
108			* @return array $sources
109			*/
110			function imgix_cdn_srcset( $sources ) {
111			foreach ( $sources as $source ) {
112			$sources[ $source['value'] ]['url'] = apply_filters( 'imgix/add-image-url', $sources[ $source['value'] ]['url'] );
113			}
114
115			return $sources;
116			}
117
118			add_filter( 'wp_calculate_image_srcset', 'imgix_cdn_srcset', 10 );
119
120			/**
121			* Modify image urls in content to use imgix host.
122			*
123			* @param $content
124			*
125			* @return string
126			*/
127			function imgix_replace_non_wp_images( $content ) {
128			global $imgix_options;
129
130			if ( ! empty( $imgix_options['cdn_link'] ) ) {
131
132			$content = preg_replace_callback( '/(?<=\shref="\|\ssrc="\|\shref=\'\|\ssrc=\').*(?=\'\|")/', function ( $match ) use ( $imgix_options ) {
133			$url = $match[0];
134
135			$pathinfo = pathinfo( $url );
136
137			if ( in_array( $pathinfo['extension'], [ 'jpg', 'gif', 'png', 'jpeg' ], true ) ) {
138			$file_url = parse_url( $url );
139			if ( $file_url['host'] === parse_url( home_url( '/' ), PHP_URL_HOST ) ) {
140			$cdn = parse_url( $imgix_options['cdn_link'] );
141			foreach ( [ 'scheme', 'host', 'port' ] as $url_part ) {
142			if ( isset( $cdn[ $url_part ] ) ) {
143			$file_url[ $url_part ] = $cdn[ $url_part ];
144			} else {
145			unset( $file_url[ $url_part ] );
146			}
147			}
148
149			list( $filename, $arguments ) = convert_filename_to_size_args( $pathinfo['basename'] );
150
151			$arguments = array_merge( $arguments, imgix_get_global_params() );
152
153			$file_url['path'] = trailingslashit( dirname( $file_url['path'] ) ) . $filename;
154
155			if ( ! empty( $arguments ) ) {
156			$file_url['query'] = empty( $file_url['query'] ) ? build_query( $arguments ) : $file_url['query'] . '&' . build_query( $arguments );
157			}
158
159			$url = http_build_url( $file_url );
			0 ignored issues – show Security Bug introduced 2017-01-27 12:33 UTC by Report Bug Copy Issue Report It seems like `$file_url` defined by `parse_url($url)` on line `138` can also be of type `false`; however, `http_build_url()` does only seem to accept `array`, did you maybe forget to handle an error condition? This check looks for type mismatches where the missing type is `false`. This is usually indicative of an error condtion. Consider the follow example <?php function getDate($date) { if ($date !== null) { return new DateTime($date); } return false; } This function either returns a new `DateTime` object or false, if there was an error. This is a typical pattern in PHP programming to show that an error has occurred without raising an exception. The calling code should check for this returned `false` before passing on the value to another function or method that may not be able to handle a `false`. Loading history...
160			}
161			}
162
163
164			return esc_url_raw( $url );
165			}, $content );
166
167			}
168
169			return $content;
170			}
171
172			add_filter( 'the_content', 'imgix_replace_non_wp_images' );
173
174			function imgix_wp_head() {
175			global $imgix_options;
176
177			if ( isset( $imgix_options['cdn_link'] ) && $imgix_options['cdn_link'] ) {
178			printf( "<link rel='dns-prefetch' href='%s'/>",
179			esc_url( preg_replace( '/^https?:/', '', untrailingslashit( $imgix_options['cdn_link'] ) ) )
180			);
181			}
182			}
183
184			add_action( 'wp_head', 'imgix_wp_head', 1 );
185
186			if ( isset( $imgix_options['add_dpi2_srcset'] ) && $imgix_options['add_dpi2_srcset'] ) {
187			function imgix_buffer_start() {
188			ob_start( 'imgix_add_retina' );
189			}
190
191			function imgix_buffer_end() {
192			ob_end_flush();
193			}
194
195			add_action( 'after_setup_theme', 'imgix_buffer_start' );
196			add_action( 'shutdown', 'imgix_buffer_end' );
197			add_filter( 'the_content', 'imgix_add_retina' );
198			}
199

imgix-wordpress / images-via-imgix

Push — master ( e47ebd...1dc9c8 )

do-functions.php ➔ imgix_replace_non_wp_images() C

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