123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130 |
- <?php
- if (!defined('STATUSNET')) {
- exit(1);
- }
- class LinkHeader
- {
- var $href;
- var $rel;
- var $type;
-
- function __construct($str)
- {
- preg_match('/^<[^>]+>/', $str, $uri_reference);
-
- $this->href = trim($uri_reference[0], '<>');
- $this->rel = array();
- $this->type = null;
-
- $str = substr($str, strlen($uri_reference[0]));
-
- $params = explode(';', $str);
- foreach ($params as $param) {
- if (empty($param)) {
- continue;
- }
- list($param_name, $param_value) = explode('=', $param, 2);
- $param_name = trim($param_name);
- $param_value = preg_replace('(^"|"$)', '', trim($param_value));
-
-
- switch ($param_name) {
- case 'rel':
- $this->rel = trim($param_value);
- break;
- case 'type':
- $this->type = trim($param_value);
- }
- }
- }
-
- static function getLink($response, $rel=null, $type=null)
- {
- $headers = $response->getHeader('Link');
- if ($headers) {
-
- if (!is_array($headers)) {
- $headers = array($headers);
- }
- foreach ($headers as $header) {
- $lh = new LinkHeader($header);
- if ((is_null($rel) || $lh->rel == $rel) &&
- (is_null($type) || $lh->type == $type)) {
- return $lh->href;
- }
- }
- }
- return null;
- }
- }
|