* SyndicatedPost::update_hash()
| static public normalize_guid_prefix ( ) |
function posts_search($search, &$query)
{
global $wpdb;
if ($guid = $query->get('guid')) {
if (strlen(trim($guid)) > 0) {
$seek = array($guid);
// MD5 hashes
if (preg_match('/^[0-9a-f]{32}$/i', $guid)) {
$seek[] = SyndicatedPost::normalize_guid_prefix() . $guid;
}
// Invalid URIs, URIs that WordPress just doesn't like, and URIs
// that WordPress decides to munge.
$nGuid = SyndicatedPost::normalize_guid($guid);
if ($guid != $nGuid) {
$seek[] = $nGuid;
}
// Escape to prevent frak-ups, injections, etc.
$seek = array_map('esc_sql', $seek);
// Assemble
$guidMatch = "(guid = '" . implode("') OR (guid = '", $seek) . "')";
$search .= " AND ({$guidMatch})";
}
}
if ($query->get('fields') == '_synfresh') {
// Ugly hack to ensure we ONLY check by guid in syndicated freshness
// checks -- for reasons of both performance and correctness. Pitch:
$search .= " -- '";
} elseif ($query->get('fields') == '_synfrom') {
$search .= " AND ({$wpdb->postmeta}.meta_key = '" . $query->get('meta_key') . "' AND {$wpdb->postmeta}.meta_value = '" . $query->get('meta_value') . "') -- '";
}
return $search;
}
static function normalize_guid($guid)
{
$guid = trim($guid);
if (preg_match('/^[0-9a-z]{32}$/i', $guid)) {
// MD5
$guid = SyndicatedPost::normalize_guid_prefix() . strtolower($guid);
} elseif (strlen(esc_url($guid)) == 0 or esc_url($guid) != $guid) {
$guid = SyndicatedPost::normalize_guid_prefix() . md5($guid);
}
$guid = trim($guid);
return $guid;
}
