return $request;
}
- function _redirectWhere_imp($short_url, $redirs = 10, $protected = false) {
+ /**
+ * Check if this URL is a redirect and return redir info.
+ *
+ * Most code should call File_redirection::where instead, to check if we
+ * already know that redirection and avoid extra hits to the web.
+ *
+ * The URL is hit and any redirects are followed, up to 10 levels or until
+ * a protected URL is reached.
+ *
+ * @param string $in_url
+ * @return mixed one of:
+ * string - target URL, if this is a direct link or can't be followed
+ * array - redirect info if this is an *unknown* redirect:
+ * associative array with the following elements:
+ * code: HTTP status code
+ * redirects: count of redirects followed
+ * url: URL string of final target
+ * type (optional): MIME type from Content-Type header
+ * size (optional): byte size from Content-Length header
+ * time (optional): timestamp from Last-Modified header
+ */
+ public function lookupWhere($short_url, $redirs = 10, $protected = false) {
if ($redirs < 0) return false;
- // let's see if we know this...
- $a = File::staticGet('url', $short_url);
-
- if (!empty($a)) {
- // this is a direct link to $a->url
- return $a->url;
- } else {
- $b = File_redirection::staticGet('url', $short_url);
- if (!empty($b)) {
- // this is a redirect to $b->file_id
- $a = File::staticGet('id', $b->file_id);
- return $a->url;
- }
- }
-
if(strpos($short_url,'://') === false){
return $short_url;
}
}
} catch (Exception $e) {
// Invalid URL or failure to reach server
+ common_log(LOG_ERR, "Error while following redirects for $short_url: " . $e->getMessage());
return $short_url;
}
if ($response->getRedirectCount() && File::isProtected($response->getUrl())) {
// Bump back up the redirect chain until we find a non-protected URL
- return self::_redirectWhere_imp($short_url, $response->getRedirectCount() - 1, true);
+ return self::lookupWhere($short_url, $response->getRedirectCount() - 1, true);
}
$ret = array('code' => $response->getStatus()
return $ret;
}
- function where($in_url) {
- $ret = File_redirection::_redirectWhere_imp($in_url);
+ /**
+ * Check if this URL is a redirect and return redir info.
+ * If a File record is present for this URL, it is not considered a redirect.
+ * If a File_redirection record is present for this URL, the recorded target is returned.
+ *
+ * If no File or File_redirect record is present, the URL is hit and any
+ * redirects are followed, up to 10 levels or until a protected URL is
+ * reached.
+ *
+ * @param string $in_url
+ * @return mixed one of:
+ * string - target URL, if this is a direct link or a known redirect
+ * array - redirect info if this is an *unknown* redirect:
+ * associative array with the following elements:
+ * code: HTTP status code
+ * redirects: count of redirects followed
+ * url: URL string of final target
+ * type (optional): MIME type from Content-Type header
+ * size (optional): byte size from Content-Length header
+ * time (optional): timestamp from Last-Modified header
+ */
+ public function where($in_url) {
+ // let's see if we know this...
+ $a = File::staticGet('url', $in_url);
+
+ if (!empty($a)) {
+ // this is a direct link to $a->url
+ return $a->url;
+ } else {
+ $b = File_redirection::staticGet('url', $in_url);
+ if (!empty($b)) {
+ // this is a redirect to $b->file_id
+ $a = File::staticGet('id', $b->file_id);
+ return $a->url;
+ }
+ }
+
+ $ret = File_redirection::lookupWhere($in_url);
return $ret;
}
+ /**
+ * Shorten a URL with the current user's configured shortening
+ * options, if applicable.
+ *
+ * If it cannot be shortened or the "short" URL is longer than the
+ * original, the original is returned.
+ *
+ * If the referenced item has not been seen before, embedding data
+ * may be saved.
+ *
+ * @param string $long_url
+ * @return string
+ */
function makeShort($long_url) {
$canon = File_redirection::_canonUrl($long_url);
// store it
$file = File::staticGet('url', $long_url);
if (empty($file)) {
+ // Check if the target URL is itself a redirect...
$redir_data = File_redirection::where($long_url);
- $file = File::saveNew($redir_data, $long_url);
- $file_id = $file->id;
- if (!empty($redir_data['oembed']['json'])) {
- File_oembed::saveNew($redir_data['oembed']['json'], $file_id);
+ if (is_array($redir_data)) {
+ // We haven't seen the target URL before.
+ // Save file and embedding data about it!
+ $file = File::saveNew($redir_data, $long_url);
+ $file_id = $file->id;
+ if (!empty($redir_data['oembed']['json'])) {
+ File_oembed::saveNew($redir_data['oembed']['json'], $file_id);
+ }
+ } else if (is_string($redir_data)) {
+ // The file is a known redirect target.
+ $file = File::staticGet('url', $redir_data);
+ if (empty($file)) {
+ // @fixme should we save a new one?
+ // this case was triggering sometimes for redirects
+ // with unresolvable targets; found while fixing
+ // "can't linkify" bugs with shortened links to
+ // SSL sites with cert issues.
+ return null;
+ }
+ $file_id = $file->id;
}
} else {
$file_id = $file->id;
$file_redir->insert();
}
}
-
projects / quix0rs-gnu-social.git / blobdiff