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Improve _fix_attachment_links(), replace attachment URLs with the real permalink only for published posts, re-save only when there are changes, see #13429 

git-svn-id: http://svn.automattic.com/wordpress/trunk@20308 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This commit is contained in:
azaozz 2012-03-28 16:02:12 +00:00
parent b358b4accc
commit f350421746
1 changed files with 32 additions and 35 deletions
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57
wp-admin/includes/post.php
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@ -749,50 +749,47 @@ function update_meta( $meta_id, $meta_key, $meta_value ) {
* @return unknown
*/
function _fix_attachment_links( $post_ID ) {
global $_fix_attachment_link_id;
$post = & get_post( $post_ID, ARRAY_A );
$content = $post['post_content'];
$search = "#<a[^>]+rel=('|\")[^'\"]*attachment[^>]*>#ie";
// See if we have any rel="attachment" links
if ( 0 == preg_match_all( $search, $post['post_content'], $anchor_matches, PREG_PATTERN_ORDER ) )
// quick sanity check, don't run if no pretty permalinks or post is not published
if ( !get_option('permalink_structure') || $post['post_status'] != 'publish' )
return;
$i = 0;
$search = "#[\s]+rel=(\"|')(.*?)wp-att-(\d+)\\1#i";
foreach ( $anchor_matches[0] as $anchor ) {
if ( 0 == preg_match( $search, $anchor, $id_matches ) )
// Short if there aren't any links or no '?attachment_id=' strings (strpos cannot be zero)
if ( !strpos($content, '?attachment_id=') || !preg_match_all( '/<a ([^>]+)>[\s\S]+?<\/a>/', $content, $link_matches ) )
return;
$site_url = get_bloginfo('url');
$site_url = substr( $site_url, (int) strpos($site_url, '://') ); // remove the http(s)
$replace = '';
foreach ( $link_matches[1] as $key => $value ) {
if ( !strpos($value, '?attachment_id=') || !strpos($value, 'wp-att-')
|| !preg_match( '/href=(["\'])[^"\']*\?attachment_id=(\d+)[^"\']*\\1/', $value, $url_match )
|| !preg_match( '/rel=["\'][^"\']*wp-att-(\d+)/', $value, $rel_match ) )
continue;
$id = (int) $id_matches[3];
$quote = $url_match[1]; // the quote (single or double)
$url_id = (int) $url_match[2];
$rel_id = (int) $rel_match[1];
// While we have the attachment ID, let's adopt any orphans.
$attachment = & get_post( $id, ARRAY_A );
if ( ! empty( $attachment) && ! is_object( get_post( $attachment['post_parent'] ) ) ) {
$attachment['post_parent'] = $post_ID;
// Escape data pulled from DB.
$attachment = add_magic_quotes( $attachment );
wp_update_post( $attachment );
if ( !$url_id || !$rel_id || $url_id != $rel_id || strpos($url_match[0], $site_url) === false )
continue;
$link = $link_matches[0][$key];
$replace = str_replace( $url_match[0], 'href=' . $quote . get_attachment_link( $url_id ) . $quote, $link );
$content = str_replace( $link, $replace, $content );
}
$post_search[$i] = $anchor;
$_fix_attachment_link_id = $id;
$post_replace[$i] = preg_replace_callback( "#href=(\"|')[^'\"]*\\1#", '_fix_attachment_links_replace_cb', $anchor );
++$i;
}
$post['post_content'] = str_replace( $post_search, $post_replace, $post['post_content'] );
if ( $replace ) {
$post['post_content'] = $content;
// Escape data pulled from DB.
$post = add_magic_quotes($post);
return wp_update_post($post);
}
function _fix_attachment_links_replace_cb($match) {
global $_fix_attachment_link_id;
return stripslashes( 'href='.$match[1] ).get_attachment_link( $_fix_attachment_link_id ).stripslashes( $match[1] );
}
/**