* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
-if (!defined('STATUSNET') && !defined('LACONICA')) { exit(1); }
-
-require_once INSTALLDIR.'/classes/Memcached_DataObject.php';
-require_once INSTALLDIR.'/classes/File.php';
-require_once INSTALLDIR.'/classes/File_oembed.php';
-
-define('USER_AGENT', 'StatusNet user agent / file probe');
+if (!defined('GNUSOCIAL')) { exit(1); }
/**
* Table Definition for file_redirection
*/
-class File_redirection extends Memcached_DataObject
+class File_redirection extends Managed_DataObject
{
###START_AUTOCODE
/* the code below is auto generated do not remove the above tag */
public $httpcode; // int(4)
public $modified; // timestamp() not_null default_CURRENT_TIMESTAMP
- /* Static get */
- function staticGet($k,$v=NULL) { return Memcached_DataObject::staticGet('File_redirection',$k,$v); }
-
/* the code above is auto generated do not remove the tag below */
###END_AUTOCODE
+ public static function schemaDef()
+ {
+ return array(
+ 'fields' => array(
+ 'url' => array('type' => 'varchar', 'length' => 255, 'not null' => true, 'description' => 'short URL (or any other kind of redirect) for file (id)'),
+ 'file_id' => array('type' => 'int', 'description' => 'short URL for what URL/file'),
+ 'redirections' => array('type' => 'int', 'description' => 'redirect count'),
+ 'httpcode' => array('type' => 'int', 'description' => 'HTTP status code (20x, 30x, etc.)'),
+ 'modified' => array('type' => 'timestamp', 'not null' => true, 'description' => 'date this record was modified'),
+ ),
+ 'primary key' => array('url'),
+ 'foreign keys' => array(
+ 'file_redirection_file_id_fkey' => array('file' => array('file_id' => 'id')),
+ ),
+ );
+ }
+
static function _commonHttp($url, $redirs) {
$request = new HTTPClient($url);
$request->setConfig(array(
$request->setMethod(HTTP_Request2::METHOD_HEAD);
$response = $request->send();
- if (405 == $response->getStatus()) {
+ if (405 == $response->getStatus() || 204 == $response->getStatus()) {
+ // HTTP 405 Unsupported Method
// Server doesn't support HEAD method? Can this really happen?
// We'll try again as a GET and ignore the response data.
+ //
+ // HTTP 204 No Content
+ // YFrog sends 204 responses back for our HEAD checks, which
+ // seems like it may be a logic error in their servers. If
+ // we get a 204 back, re-run it as a GET... if there's really
+ // no content it'll be cheap. :)
$request = self::_commonHttp($short_url, $redirs);
$response = $request->send();
}
* reached.
*
* @param string $in_url
+ * @param boolean $discover true to attempt dereferencing the redirect if we don't know it already
* @return mixed one of:
* string - target URL, if this is a direct link or a known redirect
* array - redirect info if this is an *unknown* redirect:
* size (optional): byte size from Content-Length header
* time (optional): timestamp from Last-Modified header
*/
- public function where($in_url) {
+ public function where($in_url, $discover=true) {
// let's see if we know this...
- $a = File::staticGet('url', $in_url);
+ $a = File::getKV('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);
+ $b = File_redirection::getKV('url', $in_url);
if (!empty($b)) {
// this is a redirect to $b->file_id
- $a = File::staticGet('id', $b->file_id);
+ $a = File::getKV('id', $b->file_id);
return $a->url;
}
}
- $ret = File_redirection::lookupWhere($in_url);
- return $ret;
+ if ($discover) {
+ $ret = File_redirection::lookupWhere($in_url);
+ return $ret;
+ } else {
+ // No manual dereferencing; leave the unknown URL as is.
+ return $in_url;
+ }
}
/**
* may be saved.
*
* @param string $long_url
+ * @param User $user whose shortening options to use; defaults to the current web session user
* @return string
*/
-
- function makeShort($long_url)
+ function makeShort($long_url, $user=null)
{
$canon = File_redirection::_canonUrl($long_url);
- $short_url = File_redirection::_userMakeShort($canon);
+ $short_url = File_redirection::_userMakeShort($canon, $user);
// Did we get one? Is it shorter?
* @return string
*/
- function forceShort($long_url)
+ function forceShort($long_url, $user)
{
$canon = File_redirection::_canonUrl($long_url);
- $short_url = File_redirection::_userMakeShort($canon, true);
+ $short_url = File_redirection::_userMakeShort($canon, $user, true);
// Did we get one? Is it shorter?
if (!empty($short_url)) {
}
}
- function _userMakeShort($long_url, $force = false) {
- $short_url = common_shorten_url($long_url, $force);
+ function _userMakeShort($long_url, User $user=null, $force = false) {
+ $short_url = common_shorten_url($long_url, $user, $force);
if (!empty($short_url) && $short_url != $long_url) {
$short_url = (string)$short_url;
// store it
- $file = File::staticGet('url', $long_url);
- if (empty($file)) {
+ $file = File::getKV('url', $long_url);
+ if ($file instanceof File) {
+ $file_id = $file->id;
+ } else {
// Check if the target URL is itself a redirect...
$redir_data = File_redirection::where($long_url);
if (is_array($redir_data)) {
// 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);
+ $file = File::getKV('url', $redir_data);
if (empty($file)) {
// @fixme should we save a new one?
// this case was triggering sometimes for redirects
}
$file_id = $file->id;
}
- } else {
- $file_id = $file->id;
}
- $file_redir = File_redirection::staticGet('url', $short_url);
- if (empty($file_redir)) {
+ $file_redir = File_redirection::getKV('url', $short_url);
+ if (!$file_redir instanceof File_redirection) {
$file_redir = new File_redirection;
$file_redir->url = $short_url;
$file_redir->file_id = $file_id;
return null;
}
+ /**
+ * Basic attempt to canonicalize a URL, cleaning up some standard variants
+ * such as funny syntax or a missing path. Used internally when cleaning
+ * up URLs for storage and following redirect chains.
+ *
+ * Note that despite being on File_redirect, this function DOES NOT perform
+ * any dereferencing of redirects.
+ *
+ * @param string $in_url input URL
+ * @param string $default_scheme if given a bare link; defaults to 'http://'
+ * @return string
+ */
function _canonUrl($in_url, $default_scheme = 'http://') {
if (empty($in_url)) return false;
$out_url = $in_url;
$p = parse_url($out_url);
if (empty($p['host']) || empty($p['scheme'])) {
list($scheme) = explode(':', $in_url, 2);
- switch ($scheme) {
+ switch (strtolower($scheme)) {
case 'fax':
case 'tel':
$out_url = str_replace('.-()', '', $out_url);