Issues in class.jetpack-post-images.php - New Issues - Inspection of "Normalize URLs containing www subdomain" - Automattic/jetpack - Measure and Improve Code Quality continuously with Scrutinizer

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created 2016-07-12 18:52 UTC

class.jetpack-post-images.php (3 issues)

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Coding Style 3

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<?php

/**
 * Useful for finding an image to display alongside/in representation of a specific post.
 *
 * Includes a few different methods, all of which return a similar-format array containing
 * details of any images found. Everything can (should) be called statically, it's just a
 * function-bucket. You can also call Jetpack_PostImages::get_image() to cycle through all of the methods until
 * one of them finds something useful.
 *
 * This file is included verbatim in Jetpack
 */
class Jetpack_PostImages {
	/**
	 * If a slideshow is embedded within a post, then parse out the images involved and return them
	 */
	static function from_slideshow( $post_id, $width = 200, $height = 200 ) {
		$images = array();

		$post = get_post( $post_id );

		if ( ! $post ) {
			return $images;
		}

		if ( ! empty( $post->post_password ) ) {
			return $images;
		}

		if ( false === has_shortcode( $post->post_content, 'slideshow' ) ) {
			return $images; // no slideshow - bail
		}

		$permalink = get_permalink( $post->ID );

		// Mechanic: Somebody set us up the bomb
		$old_post = $GLOBALS['post'];
		$GLOBALS['post'] = $post;
		$old_shortcodes = $GLOBALS['shortcode_tags'];
		$GLOBALS['shortcode_tags'] = array( 'slideshow' => $old_shortcodes['slideshow'] );

		// Find all the slideshows
		preg_match_all( '/' . get_shortcode_regex() . '/sx', $post->post_content, $slideshow_matches, PREG_SET_ORDER );

		ob_start(); // The slideshow shortcode handler calls wp_print_scripts and wp_print_styles... not too happy about that

		foreach ( $slideshow_matches as $slideshow_match ) {
			$slideshow = do_shortcode_tag( $slideshow_match );
			if ( false === $pos = stripos( $slideshow, 'jetpack-slideshow' ) ) // must be something wrong - or we changed the output format in which case none of the following will work
				continue;
			$start = strpos( $slideshow, '[', $pos );
			$end = strpos( $slideshow, ']', $start );
			$post_images = json_decode( wp_specialchars_decode( str_replace( "'", '"', substr( $slideshow, $start, $end - $start + 1 ) ), ENT_QUOTES ) ); // parse via JSON
			foreach ( $post_images as $post_image ) {
				if ( !$post_image_id = absint( $post_image->id ) )
					continue;

				$meta = wp_get_attachment_metadata( $post_image_id );

				// Must be larger than 200x200 (or user-specified)
				if ( !isset( $meta['width'] ) || $meta['width'] < $width )
					continue;
				if ( !isset( $meta['height'] ) || $meta['height'] < $height )
					continue;

				$url = wp_get_attachment_url( $post_image_id );

				$images[] = array(
					'type'       => 'image',
					'from'       => 'slideshow',
					'src'        => $url,
					'src_width'  => $meta['width'],
					'src_height' => $meta['height'],
					'href'       => $permalink,
				);
			}
		}
		ob_end_clean();

		// Operator: Main screen turn on
		$GLOBALS['shortcode_tags'] = $old_shortcodes;
		$GLOBALS['post'] = $old_post;

		return $images;
	}

	/**
	 * If a gallery is detected, then get all the images from it.
	 */
	static function from_gallery( $post_id ) {
		$images = array();

		$post = get_post( $post_id );

		if ( ! $post ) {
			return $images;
		}

		if ( ! empty( $post->post_password ) ) {
			return $images;
		}

		$permalink = get_permalink( $post->ID );

		$galleries = get_post_galleries( $post->ID, false );

		foreach ( $galleries as $gallery ) {
			if ( isset( $gallery['type'] ) && 'slideshow' === $gallery['type'] && ! empty( $gallery['ids'] ) ) {
				$image_ids = explode( ',', $gallery['ids'] );
				$image_size = isset( $gallery['size'] ) ? $gallery['size'] : 'thumbnail';
				foreach ( $image_ids as $image_id ) {
					$image = wp_get_attachment_image_src( $image_id, $image_size );
					if ( ! empty( $image[0] ) ) {
						list( $raw_src ) = explode( '?', $image[0] ); // pull off any Query string (?w=250)
						$raw_src = wp_specialchars_decode( $raw_src ); // rawify it
						$raw_src = esc_url_raw( $raw_src ); // clean it
						$images[] = array(
							'type'  => 'image',
							'from'  => 'gallery',
							'src'   => $raw_src,
							'href'  => $permalink,
						);
					}
				}
			} elseif ( ! empty( $gallery['src'] ) ) {
				foreach ( $gallery['src'] as $src ) {
					list( $raw_src ) = explode( '?', $src ); // pull off any Query string (?w=250)
					$raw_src = wp_specialchars_decode( $raw_src ); // rawify it
					$raw_src = esc_url_raw( $raw_src ); // clean it
					$images[] = array(
						'type'  => 'image',
						'from'  => 'gallery',
						'src'   => $raw_src,
						'href'  => $permalink,
					);
				}
			}
		}

		return $images;
	}

	/**
	 * Get attachment images for a specified post and return them. Also make sure
	 * their dimensions are at or above a required minimum.
	 */
	static function from_attachment( $post_id, $width = 200, $height = 200 ) {
		$images = array();

		$post = get_post( $post_id );

		if ( ! empty( $post->post_password ) ) {
			return $images;
		}

		$post_images = get_posts( array(
			'post_parent' => $post_id,   // Must be children of post
			'numberposts' => 5,          // No more than 5
			'post_type' => 'attachment', // Must be attachments
			'post_mime_type' => 'image', // Must be images
		) );

		if ( ! $post_images ) {
			return $images;
		}

		$permalink = get_permalink( $post_id );

		foreach ( $post_images as $post_image ) {
			$meta = wp_get_attachment_metadata( $post_image->ID );
			// Must be larger than 200x200
			if ( !isset( $meta['width'] ) || $meta['width'] < $width )
				continue;
			if ( !isset( $meta['height'] ) || $meta['height'] < $height )
				continue;

			$url = wp_get_attachment_url( $post_image->ID );

			$images[] = array(
				'type'       => 'image',
				'from'       => 'attachment',
				'src'        => $url,
				'src_width'  => $meta['width'],
				'src_height' => $meta['height'],
				'href'       => $permalink,
			);
		}

		/*
		* We only want to pass back attached images that were actually inserted.
		* We can load up all the images found in the HTML source and then
		* compare URLs to see if an image is attached AND inserted.
		*/
		$html_images = self::from_html( $post_id );
		$inserted_images = array();

		foreach( $html_images as $html_image ) {
			$src = parse_url( $html_image['src'] );
			// strip off any query strings from src
			if( ! empty( $src['scheme'] ) && ! empty( $src['host'] ) ) {
				$inserted_images[] = $src['scheme'] . '://' . $src['host'] . $src['path'];
			} elseif( ! empty( $src['host'] ) ) {
				$inserted_images[] = set_url_scheme( 'http://' . $src['host'] . $src['path'] );
			} else {
				$inserted_images[] = site_url( '/' ) . $src['path'];
			}
		}
		foreach( $images as $i => $image ) {
			if ( !in_array( $image['src'], $inserted_images ) )
				unset( $images[$i] );
		}

		return $images;
	}

	/**
	 * Check if a Featured Image is set for this post, and return it in a similar
	 * format to the other images?_from_*() methods.
	 * @param  int $post_id The post ID to check
	 * @return Array containing details of the Featured Image, or empty array if none.
	 */
	static function from_thumbnail( $post_id, $width = 200, $height = 200 ) {
		$images = array();

		$post = get_post( $post_id );

		if ( ! empty( $post->post_password ) ) {
			return $images;
		}

		if ( ! function_exists( 'get_post_thumbnail_id' ) ) {
			return $images;
		}

		$thumb = get_post_thumbnail_id( $post_id );

		if ( $thumb ) {
			$meta = wp_get_attachment_metadata( $thumb );

			// Must be larger than requested minimums
			if ( !isset( $meta['width'] ) || $meta['width'] < $width )
				return $images;
			if ( !isset( $meta['height'] ) || $meta['height'] < $height )
				return $images;

			$too_big = ( ( ! empty( $meta['width'] ) && $meta['width'] > 1200 ) || ( ! empty( $meta['height'] ) && $meta['height'] > 1200 ) );

			if (
				$too_big &&
				(
					( method_exists( 'Jetpack', 'is_module_active' ) && Jetpack::is_module_active( 'photon' ) ) ||
					( defined( 'WPCOM' ) && IS_WPCOM )
				)
			) {
				$img_src = wp_get_attachment_image_src( $thumb, array( 1200, 1200 ) );
			} else {
				$img_src = wp_get_attachment_image_src( $thumb, 'full' );
			}

			$url = $img_src[0];

			$images = array( array( // Other methods below all return an array of arrays
				'type'       => 'image',
				'from'       => 'thumbnail',
				'src'        => $url,
				'src_width'  => $img_src[1],
				'src_height' => $img_src[2],
				'href'       => get_permalink( $thumb ),
			) );
		}

		if ( empty( $images ) && ( defined( 'IS_WPCOM' ) && IS_WPCOM ) ) {
			$meta_thumbnail = get_post_meta( $post_id, '_jetpack_post_thumbnail', true );
			if ( ! empty( $meta_thumbnail ) ) {
				if ( ! isset( $meta_thumbnail['width'] ) || $meta_thumbnail['width'] < $width ) {
					return $images;
				}

				if ( ! isset( $meta_thumbnail['height'] ) || $meta_thumbnail['height'] < $height ) {
					return $images;
				}

				$images = array( array( // Other methods below all return an array of arrays
					'type'       => 'image',
					'from'       => 'thumbnail',
					'src'        => $meta_thumbnail['URL'],
					'src_width'  => $meta_thumbnail['width'],
					'src_height' => $meta_thumbnail['height'],
					'href'       => $meta_thumbnail['URL'],
				) );
			}
		}

		return $images;
	}

	/**
	 * Very raw -- just parse the HTML and pull out any/all img tags and return their src
	 * @param  mixed $html_or_id The HTML string to parse for images, or a post id
	 * @return Array containing images
	 */
	static function from_html( $html_or_id ) {
		$images = array();

		if ( is_numeric( $html_or_id ) ) {
			$post = get_post( $html_or_id );

			if ( empty( $post ) || ! empty( $post->post_password ) ) {
				return $images;
			}

			$html = $post->post_content; // DO NOT apply the_content filters here, it will cause loops
		} else {
			$html = $html_or_id;
		}

		if ( ! $html ) {
			return $images;
		}

		preg_match_all( '!<img.*src=[\'"]([^"]+)[\'"].*/?>!iUs', $html, $matches );
		if ( !empty( $matches[1] ) ) {
			foreach ( $matches[1] as $match ) {
				if ( stristr( $match, '/smilies/' ) )
					continue;

				$images[] = array(
					'type'  => 'image',
					'from'  => 'html',
					'src'   => html_entity_decode( $match ),
					'href'  => '', // No link to apply to these. Might potentially parse for that as well, but not for now
				);
			}
		}

		return $images;
	}

	/**
	 * @param    int $post_id The post ID to check
	 * @param    int $size
	 * @return Array containing details of the image, or empty array if none.
	 */
	static function from_blavatar( $post_id, $size = 96 ) {

		$permalink = get_permalink( $post_id );

		if ( function_exists( 'blavatar_domain' ) && function_exists( 'blavatar_exists' ) && function_exists( 'blavatar_url' ) ) {
			$domain = blavatar_domain( $permalink );

			if ( ! blavatar_exists( $domain ) ) {
				return array();
			}

			$url = blavatar_url( $domain, 'img', $size );
		} elseif ( function_exists( 'jetpack_has_site_icon' ) && jetpack_has_site_icon() ) {
			$url = jetpack_site_icon_url( null, $size, $default = false );
		} else {
			return array();
		}

		return array( array(
			'type'       => 'image',
			'from'       => 'blavatar',
			'src'        => $url,
			'src_width'  => $size,
			'src_height' => $size,
			'href'       => $permalink,
		) );
	}

	/**
	 * @param    int $post_id The post ID to check
	 * @param    int $size
	 * @param string $default The default image to use.
	 * @return Array containing details of the image, or empty array if none.
	 */
	static function from_gravatar( $post_id, $size = 96, $default = false ) {
		$post = get_post( $post_id );
		$permalink = get_permalink( $post_id );

		if ( function_exists( 'wpcom_get_avatar_url' ) ) {
			$url = wpcom_get_avatar_url( $post->post_author, $size, $default, true );
			if ( $url && is_array( $url ) ) {
				$url = $url[0];
			}
		} else {
			$has_filter = has_filter( 'pre_option_show_avatars', '__return_true' );
			if ( !$has_filter ) {
				add_filter( 'pre_option_show_avatars', '__return_true' );
			}
			$avatar = get_avatar( $post->post_author, $size, $default );
			if ( !$has_filter ) {
				remove_filter( 'pre_option_show_avatars', '__return_true' );
			}

			if ( !$avatar ) {
				return array();
			}

			if ( !preg_match( '/src=["\']([^"\']+)["\']/', $avatar, $matches ) ) {
				return array();
			}

			$url = wp_specialchars_decode( $matches[1], ENT_QUOTES );
		}

		return array( array(
			'type'       => 'image',
			'from'       => 'gravatar',
			'src'        => $url,
			'src_width'  => $size,
			'src_height' => $size,
			'href'       => $permalink,
		) );
	}

	/**
	 * Run through the different methods that we have available to try to find a single good
	 * display image for this post.
	 * @param  int $post_id
	 * @param array $args Other arguments (currently width and height required for images where possible to determine)
	 * @return Array containing details of the best image to be used
	 */
	static function get_image( $post_id, $args = array() ) {
		$image = '';

		/**
		 * Fires before we find a single good image for a specific post.
		 *
		 * @since 2.2.0
		 *
		 * @param int $post_id Post ID.
		 */
		do_action( 'jetpack_postimages_pre_get_image', $post_id );
		$media = self::get_images( $post_id, $args );


		if ( is_array( $media ) ) {
			foreach ( $media as $item ) {
				if ( 'image' == $item['type'] ) {
					$image = $item;
					break;
				}
			}
		}

		/**
		 * Fires after we find a single good image for a specific post.
		 *
		 * @since 2.2.0
		 *
		 * @param int $post_id Post ID.
		 */
		do_action( 'jetpack_postimages_post_get_image', $post_id );

		return $image;
	}

	/**
	 * Get an array containing a collection of possible images for this post, stopping once we hit a method
	 * that returns something useful.
	 * @param  int $post_id
	 * @param  array  $args Optional args, see defaults list for details
	 * @return Array containing images that would be good for representing this post
	 */
	static function get_images( $post_id, $args = array() ) {
		// Figure out which image to attach to this post.
		$media = false;

		/**
		 * Filters the array of images that would be good for a specific post.
		 * This filter is applied before options ($args) filter the original array.
		 *
		 * @since 2.0.0
		 *
		 * @param array $media Array of images that would be good for a specific post.
		 * @param int $post_id Post ID.
		 * @param array $args Array of options to get images.
		 */
		$media = apply_filters( 'jetpack_images_pre_get_images', $media, $post_id, $args );
		if ( $media )
			return $media;

		$defaults = array(
			'width'               => 200, // Required minimum width (if possible to determine)
			'height'              => 200, // Required minimum height (if possible to determine)

			'fallback_to_avatars' => false, // Optionally include Blavatar and Gravatar (in that order) in the image stack
			'avatar_size'         => 96, // Used for both Grav and Blav
			'gravatar_default'    => false, // Default image to use if we end up with no Gravatar

			'from_thumbnail'      => true, // Use these flags to specify which methods to use to find an image
			'from_slideshow'      => true,
			'from_gallery'        => true,
			'from_attachment'     => true,
			'from_html'           => true,

			'html_content'        => '' // HTML string to pass to from_html()
		);
		$args = wp_parse_args( $args, $defaults );


		$media = false;
		if ( $args['from_thumbnail'] )
			$media = self::from_thumbnail( $post_id, $args['width'], $args['height'] );
		if ( !$media && $args['from_slideshow'] )
			$media = self::from_slideshow( $post_id, $args['width'], $args['height'] );
		if ( !$media && $args['from_gallery'] )
			$media = self::from_gallery( $post_id );
		if ( !$media && $args['from_attachment'] )
			$media = self::from_attachment( $post_id, $args['width'], $args['height'] );
		if ( !$media && $args['from_html'] ) {
			if ( empty( $args['html_content'] ) )
				$media = self::from_html( $post_id ); // Use the post_id, which will load the content
			else
				$media = self::from_html( $args['html_content'] ); // If html_content is provided, use that
		}

		if ( !$media && $args['fallback_to_avatars'] ) {
			$media = self::from_blavatar( $post_id, $args['avatar_size'] );
			if ( !$media )
				$media = self::from_gravatar( $post_id, $args['avatar_size'], $args['gravatar_default'] );
		}

		/**
		 * Filters the array of images that would be good for a specific post.
		 * This filter is applied after options ($args) filter the original array.
		 *
		 * @since 2.0.0
		 *
		 * @param array $media Array of images that would be good for a specific post.
		 * @param int $post_id Post ID.
		 * @param array $args Array of options to get images.
		 */
		return apply_filters( 'jetpack_images_get_images', $media, $post_id, $args );
	}

	/**
	 * Takes an image URL and pixel dimensions then returns a URL for the
	 * resized and croped image.
	 *
	 * @param  string $src
	 * @param  int    $dimension
	 * @return string            Transformed image URL
	 */
	static function fit_image_url( $src, $width, $height ) {
		$width = (int) $width;

		$height = (int) $height;


		// Umm...
		if ( $width < 1 || $height < 1 ) {
			return $src;
		}

		// See if we should bypass WordPress.com SaaS resizing
		if ( has_filter( 'jetpack_images_fit_image_url_override' ) ) {
			/**
			 * Filters the image URL used after dimensions are set by Photon.
			 *
			 * @since 3.3.0
			 *
			 * @param string $src Image URL.
			 * @param int $width Image width.
			 * @param int $width Image height.
			 */
			return apply_filters( 'jetpack_images_fit_image_url_override', $src, $width, $height );
		}

		// If WPCOM hosted image use native transformations
		$img_host = parse_url( $src, PHP_URL_HOST );
		if ( '.files.wordpress.com' == substr( $img_host, -20 ) ) {
			return add_query_arg( array( 'w' => $width, 'h' => $height, 'crop' => 1 ), $src );
		}

		// Use Photon magic
		if( function_exists( 'jetpack_photon_url' ) ) {
			return jetpack_photon_url( $src, array( 'resize' => "$width,$height" ) );
		}

		// Arg... no way to resize image using WordPress.com infrastructure!
		return $src;
	}
}


1		<?php
2
3		/**
4		* Useful for finding an image to display alongside/in representation of a specific post.
5		*
6		* Includes a few different methods, all of which return a similar-format array containing
7		* details of any images found. Everything can (should) be called statically, it's just a
8		* function-bucket. You can also call Jetpack_PostImages::get_image() to cycle through all of the methods until
9		* one of them finds something useful.
10		*
11		* This file is included verbatim in Jetpack
12		*/
13		class Jetpack_PostImages {
14		/**
15		* If a slideshow is embedded within a post, then parse out the images involved and return them
16		*/
17		static function from_slideshow( $post_id, $width = 200, $height = 200 ) {
18		$images = array();
19
20		$post = get_post( $post_id );
21
22		if ( ! $post ) {
23		return $images;
24		}
25
26		if ( ! empty( $post->post_password ) ) {
27		return $images;
28		}
29
30		if ( false === has_shortcode( $post->post_content, 'slideshow' ) ) {
31		return $images; // no slideshow - bail
32		}
33
34		$permalink = get_permalink( $post->ID );
35
36		// Mechanic: Somebody set us up the bomb
37		$old_post = $GLOBALS['post'];
38		$GLOBALS['post'] = $post;
39		$old_shortcodes = $GLOBALS['shortcode_tags'];
40		$GLOBALS['shortcode_tags'] = array( 'slideshow' => $old_shortcodes['slideshow'] );
41
42		// Find all the slideshows
43		preg_match_all( '/' . get_shortcode_regex() . '/sx', $post->post_content, $slideshow_matches, PREG_SET_ORDER );
44
45		ob_start(); // The slideshow shortcode handler calls wp_print_scripts and wp_print_styles... not too happy about that
46
47		foreach ( $slideshow_matches as $slideshow_match ) {
48		$slideshow = do_shortcode_tag( $slideshow_match );
49		if ( false === $pos = stripos( $slideshow, 'jetpack-slideshow' ) ) // must be something wrong - or we changed the output format in which case none of the following will work
50		continue;
51		$start = strpos( $slideshow, '[', $pos );
52		$end = strpos( $slideshow, ']', $start );
53		$post_images = json_decode( wp_specialchars_decode( str_replace( "'", '"', substr( $slideshow, $start, $end - $start + 1 ) ), ENT_QUOTES ) ); // parse via JSON
54		foreach ( $post_images as $post_image ) {
55		if ( !$post_image_id = absint( $post_image->id ) )
56		continue;
57
58		$meta = wp_get_attachment_metadata( $post_image_id );
59
60		// Must be larger than 200x200 (or user-specified)
61		if ( !isset( $meta['width'] ) \|\| $meta['width'] < $width )
62		continue;
63		if ( !isset( $meta['height'] ) \|\| $meta['height'] < $height )
64		continue;
65
66		$url = wp_get_attachment_url( $post_image_id );
67
68		$images[] = array(
69		'type' => 'image',
70		'from' => 'slideshow',
71		'src' => $url,
72		'src_width' => $meta['width'],
73		'src_height' => $meta['height'],
74		'href' => $permalink,
75		);
76		}
77		}
78		ob_end_clean();
79
80		// Operator: Main screen turn on
81		$GLOBALS['shortcode_tags'] = $old_shortcodes;
82		$GLOBALS['post'] = $old_post;
83
84		return $images;
85		}
86
87		/**
88		* If a gallery is detected, then get all the images from it.
89		*/
90		static function from_gallery( $post_id ) {
91		$images = array();
92
93		$post = get_post( $post_id );
94
95		if ( ! $post ) {
96		return $images;
97		}
98
99		if ( ! empty( $post->post_password ) ) {
100		return $images;
101		}
102
103		$permalink = get_permalink( $post->ID );
104
105		$galleries = get_post_galleries( $post->ID, false );
106
107		foreach ( $galleries as $gallery ) {
108		if ( isset( $gallery['type'] ) && 'slideshow' === $gallery['type'] && ! empty( $gallery['ids'] ) ) {
109		$image_ids = explode( ',', $gallery['ids'] );
110		$image_size = isset( $gallery['size'] ) ? $gallery['size'] : 'thumbnail';
111		foreach ( $image_ids as $image_id ) {
112		$image = wp_get_attachment_image_src( $image_id, $image_size );
113	View Code Duplication	if ( ! empty( $image[0] ) ) {
114		list( $raw_src ) = explode( '?', $image[0] ); // pull off any Query string (?w=250)
115		$raw_src = wp_specialchars_decode( $raw_src ); // rawify it
116		$raw_src = esc_url_raw( $raw_src ); // clean it
117		$images[] = array(
118		'type' => 'image',
119		'from' => 'gallery',
120		'src' => $raw_src,
121		'href' => $permalink,
122		);
123		}
124		}
125	View Code Duplication	} elseif ( ! empty( $gallery['src'] ) ) {
126		foreach ( $gallery['src'] as $src ) {
127		list( $raw_src ) = explode( '?', $src ); // pull off any Query string (?w=250)
128		$raw_src = wp_specialchars_decode( $raw_src ); // rawify it
129		$raw_src = esc_url_raw( $raw_src ); // clean it
130		$images[] = array(
131		'type' => 'image',
132		'from' => 'gallery',
133		'src' => $raw_src,
134		'href' => $permalink,
135		);
136		}
137		}
138		}
139
140		return $images;
141		}
142
143		/**
144		* Get attachment images for a specified post and return them. Also make sure
145		* their dimensions are at or above a required minimum.
146		*/
147		static function from_attachment( $post_id, $width = 200, $height = 200 ) {
148		$images = array();
149
150		$post = get_post( $post_id );
151
152		if ( ! empty( $post->post_password ) ) {
153		return $images;
154		}
155
156		$post_images = get_posts( array(
157		'post_parent' => $post_id, // Must be children of post
158		'numberposts' => 5, // No more than 5
159		'post_type' => 'attachment', // Must be attachments
160		'post_mime_type' => 'image', // Must be images
161		) );
162
163		if ( ! $post_images ) {
164		return $images;
165		}
166
167		$permalink = get_permalink( $post_id );
168
169		foreach ( $post_images as $post_image ) {
170		$meta = wp_get_attachment_metadata( $post_image->ID );
171		// Must be larger than 200x200
172		if ( !isset( $meta['width'] ) \|\| $meta['width'] < $width )
173		continue;
174		if ( !isset( $meta['height'] ) \|\| $meta['height'] < $height )
175		continue;
176
177		$url = wp_get_attachment_url( $post_image->ID );
178
179		$images[] = array(
180		'type' => 'image',
181		'from' => 'attachment',
182		'src' => $url,
183		'src_width' => $meta['width'],
184		'src_height' => $meta['height'],
185		'href' => $permalink,
186		);
187		}
188
189		/*
190		* We only want to pass back attached images that were actually inserted.
191		* We can load up all the images found in the HTML source and then
192		* compare URLs to see if an image is attached AND inserted.
193		*/
194		$html_images = self::from_html( $post_id );
195		$inserted_images = array();
196
197		foreach( $html_images as $html_image ) {
198		$src = parse_url( $html_image['src'] );
199		// strip off any query strings from src
200		if( ! empty( $src['scheme'] ) && ! empty( $src['host'] ) ) {
201		$inserted_images[] = $src['scheme'] . '://' . $src['host'] . $src['path'];
202		} elseif( ! empty( $src['host'] ) ) {
203		$inserted_images[] = set_url_scheme( 'http://' . $src['host'] . $src['path'] );
204		} else {
205		$inserted_images[] = site_url( '/' ) . $src['path'];
206		}
207		}
208		foreach( $images as $i => $image ) {
209		if ( !in_array( $image['src'], $inserted_images ) )
210		unset( $images[$i] );
211		}
212
213		return $images;
214		}
215
216		/**
217		* Check if a Featured Image is set for this post, and return it in a similar
218		* format to the other images?_from_*() methods.
219		* @param int $post_id The post ID to check
220		* @return Array containing details of the Featured Image, or empty array if none.
221		*/
222		static function from_thumbnail( $post_id, $width = 200, $height = 200 ) {
223		$images = array();
224
225		$post = get_post( $post_id );
226
227		if ( ! empty( $post->post_password ) ) {
228		return $images;
229		}
230
231		if ( ! function_exists( 'get_post_thumbnail_id' ) ) {
232		return $images;
233		}
234
235		$thumb = get_post_thumbnail_id( $post_id );
236
237		if ( $thumb ) {
238		$meta = wp_get_attachment_metadata( $thumb );
239
240		// Must be larger than requested minimums
241		if ( !isset( $meta['width'] ) \|\| $meta['width'] < $width )
242		return $images;
243		if ( !isset( $meta['height'] ) \|\| $meta['height'] < $height )
244		return $images;
245
246		$too_big = ( ( ! empty( $meta['width'] ) && $meta['width'] > 1200 ) \|\| ( ! empty( $meta['height'] ) && $meta['height'] > 1200 ) );
247
248		if (
249		$too_big &&
250		(
251		( method_exists( 'Jetpack', 'is_module_active' ) && Jetpack::is_module_active( 'photon' ) ) \|\|
252		( defined( 'WPCOM' ) && IS_WPCOM )
253		)
254		) {
255		$img_src = wp_get_attachment_image_src( $thumb, array( 1200, 1200 ) );
256		} else {
257		$img_src = wp_get_attachment_image_src( $thumb, 'full' );
258		}
259
260		$url = $img_src[0];
261
262		$images = array( array( // Other methods below all return an array of arrays
263		'type' => 'image',
264		'from' => 'thumbnail',
265		'src' => $url,
266		'src_width' => $img_src[1],
267		'src_height' => $img_src[2],
268		'href' => get_permalink( $thumb ),
269		) );
270		}
271
272		if ( empty( $images ) && ( defined( 'IS_WPCOM' ) && IS_WPCOM ) ) {
273		$meta_thumbnail = get_post_meta( $post_id, '_jetpack_post_thumbnail', true );
274		if ( ! empty( $meta_thumbnail ) ) {
275		if ( ! isset( $meta_thumbnail['width'] ) \|\| $meta_thumbnail['width'] < $width ) {
276		return $images;
277		}
278
279		if ( ! isset( $meta_thumbnail['height'] ) \|\| $meta_thumbnail['height'] < $height ) {
280		return $images;
281		}
282
283		$images = array( array( // Other methods below all return an array of arrays
284		'type' => 'image',
285		'from' => 'thumbnail',
286		'src' => $meta_thumbnail['URL'],
287		'src_width' => $meta_thumbnail['width'],
288		'src_height' => $meta_thumbnail['height'],
289		'href' => $meta_thumbnail['URL'],
290		) );
291		}
292		}
293
294		return $images;
295		}
296
297		/**
298		* Very raw -- just parse the HTML and pull out any/all img tags and return their src
299		* @param mixed $html_or_id The HTML string to parse for images, or a post id
300		* @return Array containing images
301		*/
302		static function from_html( $html_or_id ) {
303		$images = array();
304
305		if ( is_numeric( $html_or_id ) ) {
306		$post = get_post( $html_or_id );
307
308		if ( empty( $post ) \|\| ! empty( $post->post_password ) ) {
309		return $images;
310		}
311
312		$html = $post->post_content; // DO NOT apply the_content filters here, it will cause loops
313		} else {
314		$html = $html_or_id;
315		}
316
317		if ( ! $html ) {
318		return $images;
319		}
320
321		preg_match_all( '!<img.src=[\'"]([^"]+)[\'"]./?>!iUs', $html, $matches );
322		if ( !empty( $matches[1] ) ) {
323		foreach ( $matches[1] as $match ) {
324		if ( stristr( $match, '/smilies/' ) )
325		continue;
326
327		$images[] = array(
328		'type' => 'image',
329		'from' => 'html',
330		'src' => html_entity_decode( $match ),
331		'href' => '', // No link to apply to these. Might potentially parse for that as well, but not for now
332		);
333		}
334		}
335
336		return $images;
337		}
338
339		/**
340		* @param int $post_id The post ID to check
341		* @param int $size
342		* @return Array containing details of the image, or empty array if none.
343		*/
344		static function from_blavatar( $post_id, $size = 96 ) {
345
346		$permalink = get_permalink( $post_id );
347
348		if ( function_exists( 'blavatar_domain' ) && function_exists( 'blavatar_exists' ) && function_exists( 'blavatar_url' ) ) {
349		$domain = blavatar_domain( $permalink );
350
351		if ( ! blavatar_exists( $domain ) ) {
352		return array();
353		}
354
355		$url = blavatar_url( $domain, 'img', $size );
356		} elseif ( function_exists( 'jetpack_has_site_icon' ) && jetpack_has_site_icon() ) {
357		$url = jetpack_site_icon_url( null, $size, $default = false );
358		} else {
359		return array();
360		}
361
362		return array( array(
363		'type' => 'image',
364		'from' => 'blavatar',
365		'src' => $url,
366		'src_width' => $size,
367		'src_height' => $size,
368		'href' => $permalink,
369		) );
370		}
371
372		/**
373		* @param int $post_id The post ID to check
374		* @param int $size
375		* @param string $default The default image to use.
376		* @return Array containing details of the image, or empty array if none.
377		*/
378		static function from_gravatar( $post_id, $size = 96, $default = false ) {
379		$post = get_post( $post_id );
380		$permalink = get_permalink( $post_id );
381
382		if ( function_exists( 'wpcom_get_avatar_url' ) ) {
383		$url = wpcom_get_avatar_url( $post->post_author, $size, $default, true );
384		if ( $url && is_array( $url ) ) {
385		$url = $url[0];
386		}
387		} else {
388		$has_filter = has_filter( 'pre_option_show_avatars', '__return_true' );
389		if ( !$has_filter ) {
390		add_filter( 'pre_option_show_avatars', '__return_true' );
391		}
392		$avatar = get_avatar( $post->post_author, $size, $default );
393		if ( !$has_filter ) {
394		remove_filter( 'pre_option_show_avatars', '__return_true' );
395		}
396
397		if ( !$avatar ) {
398		return array();
399		}
400
401		if ( !preg_match( '/src=["\']([^"\']+)["\']/', $avatar, $matches ) ) {
402		return array();
403		}
404
405		$url = wp_specialchars_decode( $matches[1], ENT_QUOTES );
406		}
407
408		return array( array(
409		'type' => 'image',
410		'from' => 'gravatar',
411		'src' => $url,
412		'src_width' => $size,
413		'src_height' => $size,
414		'href' => $permalink,
415		) );
416		}
417
418		/**
419		* Run through the different methods that we have available to try to find a single good
420		* display image for this post.
421		* @param int $post_id
422		* @param array $args Other arguments (currently width and height required for images where possible to determine)
423		* @return Array containing details of the best image to be used
424		*/
425		static function get_image( $post_id, $args = array() ) {
426		$image = '';
427
428		/**
429		* Fires before we find a single good image for a specific post.
430		*
431		* @since 2.2.0
432		*
433		* @param int $post_id Post ID.
434		*/
435		do_action( 'jetpack_postimages_pre_get_image', $post_id );
436		$media = self::get_images( $post_id, $args );
437
438
439		if ( is_array( $media ) ) {
440		foreach ( $media as $item ) {
441		if ( 'image' == $item['type'] ) {
442		$image = $item;
443		break;
444		}
445		}
446		}
447
448		/**
449		* Fires after we find a single good image for a specific post.
450		*
451		* @since 2.2.0
452		*
453		* @param int $post_id Post ID.
454		*/
455		do_action( 'jetpack_postimages_post_get_image', $post_id );
456
457		return $image;
458		}
459
460		/**
461		* Get an array containing a collection of possible images for this post, stopping once we hit a method
462		* that returns something useful.
463		* @param int $post_id
464		* @param array $args Optional args, see defaults list for details
465		* @return Array containing images that would be good for representing this post
466		*/
467		static function get_images( $post_id, $args = array() ) {
468		// Figure out which image to attach to this post.
469		$media = false;
470
471		/**
472		* Filters the array of images that would be good for a specific post.
473		* This filter is applied before options ($args) filter the original array.
474		*
475		* @since 2.0.0
476		*
477		* @param array $media Array of images that would be good for a specific post.
478		* @param int $post_id Post ID.
479		* @param array $args Array of options to get images.
480		*/
481		$media = apply_filters( 'jetpack_images_pre_get_images', $media, $post_id, $args );
482		if ( $media )
483		return $media;
484
485		$defaults = array(
486		'width' => 200, // Required minimum width (if possible to determine)
487		'height' => 200, // Required minimum height (if possible to determine)
488
489		'fallback_to_avatars' => false, // Optionally include Blavatar and Gravatar (in that order) in the image stack
490		'avatar_size' => 96, // Used for both Grav and Blav
491		'gravatar_default' => false, // Default image to use if we end up with no Gravatar
492
493		'from_thumbnail' => true, // Use these flags to specify which methods to use to find an image
494		'from_slideshow' => true,
495		'from_gallery' => true,
496		'from_attachment' => true,
497		'from_html' => true,
498
499		'html_content' => '' // HTML string to pass to from_html()
500		);
501		$args = wp_parse_args( $args, $defaults );
		0 ignored issues – show Coding Style introduced 2016-07-12 10:37 UTC by Report Bug Copy Issue Report Show Similar Issues like this Consider using a different name than the parameter `$args`. This often makes code more readable. Loading history...
502
503		$media = false;
504		if ( $args['from_thumbnail'] )
505		$media = self::from_thumbnail( $post_id, $args['width'], $args['height'] );
506	View Code Duplication	if ( !$media && $args['from_slideshow'] )
507		$media = self::from_slideshow( $post_id, $args['width'], $args['height'] );
508		if ( !$media && $args['from_gallery'] )
509		$media = self::from_gallery( $post_id );
510	View Code Duplication	if ( !$media && $args['from_attachment'] )
511		$media = self::from_attachment( $post_id, $args['width'], $args['height'] );
512		if ( !$media && $args['from_html'] ) {
513		if ( empty( $args['html_content'] ) )
514		$media = self::from_html( $post_id ); // Use the post_id, which will load the content
515		else
516		$media = self::from_html( $args['html_content'] ); // If html_content is provided, use that
517		}
518
519		if ( !$media && $args['fallback_to_avatars'] ) {
520		$media = self::from_blavatar( $post_id, $args['avatar_size'] );
521		if ( !$media )
522		$media = self::from_gravatar( $post_id, $args['avatar_size'], $args['gravatar_default'] );
523		}
524
525		/**
526		* Filters the array of images that would be good for a specific post.
527		* This filter is applied after options ($args) filter the original array.
528		*
529		* @since 2.0.0
530		*
531		* @param array $media Array of images that would be good for a specific post.
532		* @param int $post_id Post ID.
533		* @param array $args Array of options to get images.
534		*/
535		return apply_filters( 'jetpack_images_get_images', $media, $post_id, $args );
536		}
537
538		/**
539		* Takes an image URL and pixel dimensions then returns a URL for the
540		* resized and croped image.
541		*
542		* @param string $src
543		* @param int $dimension
544		* @return string Transformed image URL
545		*/
546		static function fit_image_url( $src, $width, $height ) {
547		$width = (int) $width;
		0 ignored issues – show Coding Style introduced 2016-07-12 10:37 UTC by Report Bug Copy Issue Report Show Similar Issues like this Consider using a different name than the parameter `$width`. This often makes code more readable. Loading history...
548		$height = (int) $height;
		0 ignored issues – show Coding Style introduced 2016-07-12 10:37 UTC by Report Bug Copy Issue Report Show Similar Issues like this Consider using a different name than the parameter `$height`. This often makes code more readable. Loading history...
549
550		// Umm...
551		if ( $width < 1 \|\| $height < 1 ) {
552		return $src;
553		}
554
555		// See if we should bypass WordPress.com SaaS resizing
556		if ( has_filter( 'jetpack_images_fit_image_url_override' ) ) {
557		/**
558		* Filters the image URL used after dimensions are set by Photon.
559		*
560		* @since 3.3.0
561		*
562		* @param string $src Image URL.
563		* @param int $width Image width.
564		* @param int $width Image height.
565		*/
566		return apply_filters( 'jetpack_images_fit_image_url_override', $src, $width, $height );
567		}
568
569		// If WPCOM hosted image use native transformations
570		$img_host = parse_url( $src, PHP_URL_HOST );
571		if ( '.files.wordpress.com' == substr( $img_host, -20 ) ) {
572		return add_query_arg( array( 'w' => $width, 'h' => $height, 'crop' => 1 ), $src );
573		}
574
575		// Use Photon magic
576		if( function_exists( 'jetpack_photon_url' ) ) {
577		return jetpack_photon_url( $src, array( 'resize' => "$width,$height" ) );
578		}
579
580		// Arg... no way to resize image using WordPress.com infrastructure!
581		return $src;
582		}
583		}
584

Automattic / jetpack

Push — fix/normalize-www-in-site-url-... ( e67e76 )

class.jetpack-post-images.php (3 issues)

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