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.
*
* @param array $default_mime_types Array of mime types.
*
* @return array mime_type array
*/
public 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 ) {
return jetpack_is_file_supported_for_sideloading( $file );
}
/**
* Save the given uploaded temporary 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.
*
* Note this does not support sideloads, only uploads.
*
* @param array $file_array Data derived from `$_FILES` for an uploaded file.
* @param int $media_id Attachment 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 ( ! is_uploaded_file( $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 )
) {
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_upload( $file_array, $overrides, $time );
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 array|WP_Error $file - File data, or WP_Error on error.
* @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 int $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.
*
* @param int $media_id Attachment ID.
*/
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;
}
/**
* Delete a file.
*
* @param string $pathname Path name.
*/
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 ); // phpcs:ignore WordPress.WP.AlternativeFunctions.file_system_operations_touch
}
return wp_delete_file( $pathname );
}
/**
* Try to delete a file according to the dirname of
* the media attached file and the filename.
*
* @param int $media_id - media post ID.
* @param string $filename - basename of the file ( name-of-file.ext ).
*
* @return void
*/
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 $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) ,
* 'to' => (int) ,
* )
*
* Also, it removes the file defined in each item.
*
* @param int $media_id - media post ID.
* @param array $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, $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 int $media_id - media post ID.
* @param null|int $limit - maximum amount of items. 20 as default.
*
* @return array items removed from `revision_history`
*/
public static function limit_revision_history( $media_id, $limit = null ) {
if ( $limit === null ) {
$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 int $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 int $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
*
* Note this does not support sideloads, only uploads.
*
* @param int $media_id - media post ID.
* @param array $file_array - Data derived from `$_FILES` for an uploaded file.
* @return WP_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 ) ) {
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 new WP_Error( 'update_error', 'Media update error' );
}
// Check maximum amount of revision_history before updating the attachment metadata.
self::limit_revision_history( $media_id );
$new_metadata = wp_generate_attachment_metadata( $media_id, $uploaded_path );
wp_update_attachment_metadata( $media_id, $new_metadata );
$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;
}
}
// phpcs:disable Universal.Files.SeparateFunctionsFromOO.Mixed -- TODO: Move these functions to some other file.
/**
* Clean revision history when the media item is deleted.
*
* @param int $media_id Attachment ID.
*/
function jetpack_clean_revision_history( $media_id ) {
Jetpack_Media::clean_revision_history( $media_id );
}
add_action( 'delete_attachment', 'jetpack_clean_revision_history' );