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apps/bookmarks: follow redirects when fetching title

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This solves a problem where hitting a redirect page would lead to a "302
Found" title.

Signed-off-by: Florian Pritz <bluewind@xinu.at>
This commit is contained in:
Florian Pritz 2011-10-08 19:42:09 +02:00
parent e4a644e47d
commit 45bd1df772
1 changed files with 48 additions and 1 deletions
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49
bookmarksHelper.php
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@ -1,5 +1,52 @@
<?php
// Source: http://www.php.net/manual/de/function.curl-setopt.php#102121
// This works around a safe_mode/open_basedir restriction
function curl_exec_follow(/*resource*/ $ch, /*int*/ &$maxredirect = null) {
$mr = $maxredirect === null ? 5 : intval($maxredirect);
if (ini_get('open_basedir') == '' && ini_get('safe_mode' == 'Off')) {
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, $mr > 0);
curl_setopt($ch, CURLOPT_MAXREDIRS, $mr);
} else {
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, false);
if ($mr > 0) {
$newurl = curl_getinfo($ch, CURLINFO_EFFECTIVE_URL);
$rch = curl_copy_handle($ch);
curl_setopt($rch, CURLOPT_HEADER, true);
curl_setopt($rch, CURLOPT_NOBODY, true);
curl_setopt($rch, CURLOPT_FORBID_REUSE, false);
curl_setopt($rch, CURLOPT_RETURNTRANSFER, true);
do {
curl_setopt($rch, CURLOPT_URL, $newurl);
$header = curl_exec($rch);
if (curl_errno($rch)) {
$code = 0;
} else {
$code = curl_getinfo($rch, CURLINFO_HTTP_CODE);
if ($code == 301 || $code == 302) {
preg_match('/Location:(.*?)\n/', $header, $matches);
$newurl = trim(array_pop($matches));
} else {
$code = 0;
}
}
} while ($code && --$mr);
curl_close($rch);
if (!$mr) {
if ($maxredirect === null) {
trigger_error('Too many redirects. When following redirects, libcurl hit the maximum amount.', E_USER_WARNING);
} else {
$maxredirect = 0;
}
return false;
}
curl_setopt($ch, CURLOPT_URL, $newurl);
}
}
return curl_exec($ch);
}
function getURLMetadata($url) {
//allow only http(s) and (s)ftp
$protocols = '/^[hs]{0,1}[tf]{0,1}tp[s]{0,1}\:\/\//i';
@ -12,7 +59,7 @@ function getURLMetadata($url) {
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
$page = curl_exec($ch);
$page = curl_exec_follow($ch);
curl_close($ch);
@preg_match( "/<title>(.*)<\/title>/si", $page, $match );