Adding Plugins

Updating the following
akismet.4.1.2, google-authenticator.0.52, jetpack.7.3.1

Signed-off-by: Yury German <blueknight@gentoo.org>

1 files changed, 505 insertions, 0 deletions

diff --git a/plugins/jetpack/_inc/lib/class.media.php b/plugins/jetpack/_inc/lib/class.media.php
new file mode 100644
index 00000000..e48c4aad
--- /dev/null
+++ b/plugins/jetpack/_inc/lib/class.media.php
@@ -0,0 +1,505 @@
+<?php
+
+require_once( JETPACK__PLUGIN_DIR . 'sal/class.json-api-date.php' );
+
+/**
+ * Class to handle different actions related to media.
+ */
+class Jetpack_Media {
+	public static $WP_ORIGINAL_MEDIA = '_wp_original_post_media';
+	public static $WP_REVISION_HISTORY = '_wp_revision_history';
+	public static $REVISION_HISTORY_MAXIMUM_AMOUNT = 0;
+	public static $WP_ATTACHMENT_IMAGE_ALT = '_wp_attachment_image_alt';
+
+	/**
+	 * Generate a filename in function of the original filename of the media.
+	 * The returned name has the `{basename}-{hash}-{random-number}.{ext}` shape.
+	 * The hash is built according to the filename trying to avoid name collisions
+	 * with other media files.
+	 * 
+	 * @param  number $media_id - media post ID
+	 * @param  string $new_filename - the new filename
+	 * @return string A random filename.
+	 */
+	public static function generate_new_filename( $media_id, $new_filename ) {
+		// get the right filename extension
+		$new_filename_paths = pathinfo( $new_filename );
+		$new_file_ext = $new_filename_paths['extension'];
+
+		// take out filename from the original file or from the current attachment
+		$original_media = (array) self::get_original_media( $media_id );
+
+		if ( ! empty( $original_media ) ) {
+			$original_file_parts = pathinfo( $original_media['file'] );
+			$filename_base = $original_file_parts['filename'];
+		} else {
+			$current_file = get_attached_file( $media_id );
+			$current_file_parts = pathinfo( $current_file );
+			$current_file_ext = $current_file_parts['filename'];
+			$filename_base = $current_file_parts['filename'];
+		}
+
+		// add unique seed based on the filename
+		$filename_base .=  '-' . crc32( $filename_base ) . '-';
+
+		$number_suffix = time() . rand( 100, 999 );
+
+		do {
+			$filename = $filename_base;
+			$filename .= $number_suffix;
+			$file_ext = $new_file_ext ? $new_file_ext : $current_file_ext;
+
+			$new_filename = "{$filename}.{$file_ext}";
+			$new_path = "{$current_file_parts['dirname']}/$new_filename";
+			$number_suffix++;
+		} while( file_exists( $new_path ) );
+
+		return $new_filename;
+	}
+
+	/**
+	 * File urls use the post (image item) date to generate a folder path.
+	 * Post dates can change, so we use the original date used in the `guid`
+	 * url so edits can remain in the same folder. In the following function
+	 * we capture a string in the format of `YYYY/MM` from the guid.
+	 *
+	 * For example with a guid of
+	 * "http://test.files.wordpress.com/2016/10/test.png" the resulting string
+	 * would be: "2016/10"
+	 *
+	 * @param  number $media_id
+	 * @return string
+	 */
+	private function get_time_string_from_guid( $media_id ) {
+		$time = date( "Y/m", strtotime( current_time( 'mysql' ) ) );
+
+		if ( $media = get_post( $media_id ) ) {
+			$pattern = '/\/(\d{4}\/\d{2})\//';
+			preg_match( $pattern, $media->guid, $matches );
+			if ( count( $matches ) > 1 ) {
+				$time = $matches[1];
+			}
+		}
+		return $time;
+	}
+
+	/**
+	 * Return an array of allowed mime_type items used to upload a media file.
+	 * 	
+	 * @return array mime_type array
+	 */
+	static function get_allowed_mime_types( $default_mime_types ) {
+		return array_unique( array_merge( $default_mime_types, array(
+			'application/msword',                                                         // .doc
+			'application/vnd.ms-powerpoint',                                              // .ppt, .pps
+			'application/vnd.ms-excel',                                                   // .xls
+			'application/vnd.openxmlformats-officedocument.presentationml.presentation',  // .pptx
+			'application/vnd.openxmlformats-officedocument.presentationml.slideshow',     // .ppsx
+			'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet',          // .xlsx
+			'application/vnd.openxmlformats-officedocument.wordprocessingml.document',    // .docx
+			'application/vnd.oasis.opendocument.text',                                    // .odt
+			'application/pdf',                                                            // .pdf
+		) ) );
+	}
+
+	/**
+	 * Checks that the mime type of the file
+	 * is among those in a filterable list of mime types.
+	 *
+	 * @param  string $file Path to file to get its mime type.
+	 * @return bool
+	 */
+	protected static function is_file_supported_for_sideloading( $file ) {
+		if ( class_exists( 'finfo' ) ) { // php 5.3+
+			// phpcs:ignore PHPCompatibility.PHP.NewClasses.finfoFound
+			$finfo = new finfo( FILEINFO_MIME );
+			$mime = explode( '; ', $finfo->file( $file ) );
+			$type = $mime[0];
+
+		} elseif ( function_exists( 'mime_content_type' ) ) { // PHP 5.2
+			$type = mime_content_type( $file );
+
+		} else {
+			return false;
+		}
+
+		/**
+		 * Filter the list of supported mime types for media sideloading.
+		 *
+		 * @since 4.0
+		 *
+		 * @module json-api
+		 *
+		 * @param array $supported_mime_types Array of the supported mime types for media sideloading.
+		 */
+		$supported_mime_types = apply_filters( 'jetpack_supported_media_sideload_types', array(
+			'image/png',
+			'image/jpeg',
+			'image/gif',
+			'image/bmp',
+			'video/quicktime',
+			'video/mp4',
+			'video/mpeg',
+			'video/ogg',
+			'video/3gpp',
+			'video/3gpp2',
+			'video/h261',
+			'video/h262',
+			'video/h264',
+			'video/x-msvideo',
+			'video/x-ms-wmv',
+			'video/x-ms-asf',
+		) );
+
+		// If the type returned was not an array as expected, then we know we don't have a match.
+		if ( ! is_array( $supported_mime_types ) ) {
+			return false;
+		}
+
+		return in_array( $type, $supported_mime_types );
+	}
+
+	/**
+	 * Try to remove the temporal file from the given file array.
+	 * 	
+	 * @param  array $file_array Array with data about the temporal file
+	 * @return bool `true` if the file has been removed. `false` either the file doesn't exist or it couldn't be removed.
+	 */
+	private static function remove_tmp_file( $file_array ) {
+		if ( ! file_exists ( $file_array['tmp_name'] ) ) {
+			return false;
+		}
+		return @unlink( $file_array['tmp_name'] );
+	}
+
+	/**
+	 * Save the given temporal file considering file type, 
+	 * correct location according to the original file path, etc.
+	 * The file type control is done through of `jetpack_supported_media_sideload_types` filter,
+	 * which allows define to the users their own file types list.
+	 * 
+	 * @param  array  $file_array file to save
+	 * @param  number $media_id
+	 * @return array|WP_Error an array with information about the new file saved or a WP_Error is something went wrong.
+	 */
+	public static function save_temporary_file( $file_array, $media_id ) {
+		$tmp_filename = $file_array['tmp_name'];
+
+		if ( ! file_exists( $tmp_filename ) ) {
+			return new WP_Error( 'invalid_input', 'No media provided in input.' );
+		}
+
+		// add additional mime_types through of the `jetpack_supported_media_sideload_types` filter
+		$mime_type_static_filter = array(
+			'Jetpack_Media',
+			'get_allowed_mime_types'
+		);
+
+		add_filter( 'jetpack_supported_media_sideload_types', $mime_type_static_filter );
+		if (
+			! self::is_file_supported_for_sideloading( $tmp_filename ) &&
+			! file_is_displayable_image( $tmp_filename )
+		) {
+			@unlink( $tmp_filename );
+			return new WP_Error( 'invalid_input', 'Invalid file type.', 403 );
+		}
+		remove_filter( 'jetpack_supported_media_sideload_types', $mime_type_static_filter );
+
+		// generate a new file name
+		$tmp_new_filename = self::generate_new_filename( $media_id, $file_array[ 'name' ] );
+
+		// start to create the parameters to move the temporal file
+		$overrides = array( 'test_form' => false );
+
+		// get time according to the original filaname
+		$time = self::get_time_string_from_guid( $media_id );
+
+		$file_array['name'] = $tmp_new_filename;
+		$file = wp_handle_sideload( $file_array, $overrides, $time );
+
+		self::remove_tmp_file( $file_array );
+
+		if ( isset( $file['error'] ) ) {
+			return new WP_Error( 'upload_error', $file['error'] );
+		}
+
+		return $file;
+	}
+
+	/**
+	 * Return an object with an snapshot of a revision item.
+	 * 
+	 * @param  object $media_item - media post object
+	 * @return object a revision item 
+	 */
+	public static function get_snapshot( $media_item ) {
+		$current_file = get_attached_file( $media_item->ID );
+		$file_paths = pathinfo( $current_file );
+
+		$snapshot = array(
+			'date'             => (string) WPCOM_JSON_API_Date::format_date( $media_item->post_modified_gmt, $media_item->post_modified ),
+			'URL'              => (string) wp_get_attachment_url( $media_item->ID ),
+			'file'             => (string) $file_paths['basename'],
+			'extension'        => (string) $file_paths['extension'],
+			'mime_type'        => (string) $media_item->post_mime_type,
+			'size'             => (int) filesize( $current_file ) 
+		);
+
+		return (object) $snapshot;
+	}
+
+	/**
+	 * Add a new item into revision_history array.
+	 * 
+	 * @param  object $media_item - media post object
+	 * @param  file $file - file recently added
+	 * @param  bool $has_original_media - condition is the original media has been already added
+	 * @return bool `true` if the item has been added. Otherwise `false`.
+	 */
+	public static function register_revision( $media_item, $file, $has_original_media ) {
+		if ( is_wp_error( $file ) || ! $has_original_media ) {
+			return false;
+		}
+
+		add_post_meta( $media_item->ID, self::$WP_REVISION_HISTORY, self::get_snapshot( $media_item ) );
+	}
+	/**
+	 * Return the `revision_history` of the given media.
+	 * 
+	 * @param  number $media_id - media post ID
+	 * @return array `revision_history` array
+	 */
+	public static function get_revision_history( $media_id ) {
+		return array_reverse( get_post_meta( $media_id, self::$WP_REVISION_HISTORY ) );
+	}
+
+	/**
+	 * Return the original media data
+	 */
+	public static function get_original_media( $media_id ) {
+		$original = get_post_meta( $media_id, self::$WP_ORIGINAL_MEDIA, true );
+		$original = $original ? $original : array();
+		return $original;
+	}
+
+	public static function delete_file( $pathname ) {
+		if ( ! file_exists( $pathname ) || ! is_file( $pathname ) ) {
+			// let's touch a fake file to try to `really` remove the media file
+			touch( $pathname );
+		}
+
+		return wp_delete_file( $pathname );
+	}
+
+	/**
+	 * Try to delete a file according to the dirname of
+	 * the media attached file and the filename.
+	 * 
+	 * @param  number $media_id - media post ID
+	 * @param  string $filename - basename of the file ( name-of-file.ext )
+	 * @return bool `true` is the file has been removed, `false` if not.
+	 */
+	private static function delete_media_history_file( $media_id, $filename ) {
+		$attached_path = get_attached_file( $media_id );
+		$attached_parts = pathinfo( $attached_path );
+		$dirname = $attached_parts['dirname'];
+
+		$pathname = $dirname . '/' . $filename;
+
+		// remove thumbnails
+		$metadata = wp_generate_attachment_metadata( $media_id, $pathname );
+
+		if ( isset( $metadata ) && isset( $metadata['sizes'] ) ) {
+			foreach ( $metadata['sizes'] as $size => $properties ) {
+				self::delete_file( $dirname . '/' . $properties['file'] );
+			}
+		}
+
+		// remove primary file
+		self::delete_file( $pathname );
+	}
+
+	/**
+	 * Remove specific items from the `revision history` array
+	 * depending on the given criteria: array(
+	 *   'from' => (int) <from>,
+	 *   'to' =>   (int) <to>,
+	 * )
+	 * 
+	 * Also, it removes the file defined in each item.
+	 *
+	 * @param  number $media_id - media post ID
+	 * @param  object $criteria - criteria to remove the items
+	 * @param  array [$revision_history] - revision history array
+	 * @return array `revision_history` array updated.
+	 */
+	public static function remove_items_from_revision_history( $media_id, $criteria = array(), $revision_history ) {
+		if ( ! isset ( $revision_history ) ) {
+			$revision_history = self::get_revision_history( $media_id );
+		}
+
+		$from = $criteria['from'];
+		$to = $criteria['to'] ? $criteria['to'] : ( $from + 1 );
+
+		for ( $i = $from; $i < $to; $i++ ) {
+			$removed_item = array_slice( $revision_history, $from, 1 );
+			if ( ! $removed_item ) {
+				break;
+			}
+
+			array_splice( $revision_history, $from, 1 );
+			self::delete_media_history_file( $media_id, $removed_item[0]->file );
+		}
+
+		// override all history items
+		delete_post_meta( $media_id, self::$WP_REVISION_HISTORY );
+		$revision_history = array_reverse( $revision_history );
+		foreach ( $revision_history as &$item ) {
+			add_post_meta( $media_id, self::$WP_REVISION_HISTORY, $item );
+		}
+
+		return $revision_history;
+	}
+
+	/**
+	 * Limit the number of items of the `revision_history` array.
+	 * When the stack is overflowing the oldest item is remove from there (FIFO).
+	 * 
+	 * @param  number $media_id - media post ID
+	 * @param  number [$limit] - maximun amount of items. 20 as default.
+	 * @return array items removed from `revision_history`
+	 */
+	public static function limit_revision_history( $media_id, $limit = null) {
+		if ( is_null( $limit ) ) {
+			$limit = self::$REVISION_HISTORY_MAXIMUM_AMOUNT;
+		}
+
+		$revision_history = self::get_revision_history( $media_id );
+
+		$total = count( $revision_history );
+
+		if ( $total < $limit ) {
+			return array();
+		}
+
+		self::remove_items_from_revision_history(
+			$media_id,
+			array( 'from' => $limit, 'to' => $total ),
+			$revision_history
+		);
+
+		return self::get_revision_history( $media_id );
+	}
+
+	/**
+	 * Remove the original file and clean the post metadata.
+	 * 
+	 * @param  number $media_id - media post ID
+	 */
+	public static function clean_original_media( $media_id ) {
+		$original_file = self::get_original_media( $media_id );
+
+		if ( ! $original_file ) {
+			return null;
+		}
+
+		self::delete_media_history_file( $media_id, $original_file->file );
+		return delete_post_meta( $media_id, self::$WP_ORIGINAL_MEDIA );
+	}
+
+	/**
+	 * Clean `revision_history` of the given $media_id. it means:
+	 *   - remove all media files tied to the `revision_history` items.
+	 *   - clean `revision_history` meta data.
+	 *   - remove and clean the `original_media`
+	 * 
+	 * @param  number $media_id - media post ID
+	 * @return array results of removing these files
+	 */
+	public static function clean_revision_history( $media_id ) {
+		self::clean_original_media( $media_id );
+
+		$revision_history = self::get_revision_history( $media_id );
+		$total = count( $revision_history );
+		$updated_history = array();
+
+		if ( $total < 1 ) {
+			return $updated_history;
+		}
+
+		$updated_history = self::remove_items_from_revision_history(
+			$media_id,
+			array( 'from' => 0, 'to' => $total ),
+			$revision_history
+		);
+
+		return $updated_history;
+	}
+
+	/**
+	 * Edit media item process:
+	 *
+	 * - update attachment file
+	 * - preserve original media file
+	 * - trace revision history
+	 * 
+	 * @param  number $media_id - media post ID
+	 * @param  array $file_array - temporal file
+	 * @return {Post|WP_Error} Updated media item or a WP_Error is something went wrong.
+	 */
+	public static function edit_media_file( $media_id, $file_array ) {
+		$media_item = get_post( $media_id );
+		$has_original_media = self::get_original_media( $media_id );
+
+		if ( ! $has_original_media ) {
+			// The first time that the media is updated
+			// the original media is stored into the revision_history
+			$snapshot = self::get_snapshot( $media_item );
+			add_post_meta( $media_id, self::$WP_ORIGINAL_MEDIA, $snapshot, true );
+		}
+
+		// save temporary file in the correct location
+		$uploaded_file = self::save_temporary_file( $file_array, $media_id );
+
+		if ( is_wp_error( $uploaded_file ) ) {
+			self::remove_tmp_file( $file_array );
+			return $uploaded_file;
+		}
+
+		// revision_history control
+		self::register_revision( $media_item, $uploaded_file, $has_original_media );
+
+		$uploaded_path = $uploaded_file['file'];
+		$udpated_mime_type = $uploaded_file['type'];
+		$was_updated = update_attached_file( $media_id, $uploaded_path );
+
+		if ( ! $was_updated ) {
+			return WP_Error( 'update_error', 'Media update error' );
+		}
+
+		$new_metadata = wp_generate_attachment_metadata( $media_id, $uploaded_path );
+		wp_update_attachment_metadata( $media_id, $new_metadata );
+
+		// check maximum amount of revision_history
+		self::limit_revision_history( $media_id );
+
+		$edited_action = wp_update_post( (object) array(
+			'ID'              => $media_id,
+			'post_mime_type'  => $udpated_mime_type
+		), true );
+
+		if ( is_wp_error( $edited_action ) ) {
+			return $edited_action;
+		}
+
+		return $media_item;
+	}
+}
+
+// hook: clean revision history when the media item is deleted
+function clean_revision_history( $media_id ) {
+	Jetpack_Media::clean_revision_history( $media_id );
+};
+
+add_action( 'delete_attachment', 'clean_revision_history' );
+