diff options
Diffstat (limited to 'classes/File_redirection.php')
| -rw-r--r-- | classes/File_redirection.php | 231 |
1 files changed, 231 insertions, 0 deletions
diff --git a/classes/File_redirection.php b/classes/File_redirection.php index e2d1e69c3..a71d1c083 100644 --- a/classes/File_redirection.php +++ b/classes/File_redirection.php @@ -20,6 +20,11 @@ if (!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', 'Laconica user agent / file probe'); + /** * Table Definition for file_redirection @@ -42,4 +47,230 @@ class File_redirection extends Memcached_DataObject /* the code above is auto generated do not remove the tag below */ ###END_AUTOCODE + + + + function _commonCurl($url, $redirs) { + $curlh = curl_init(); + curl_setopt($curlh, CURLOPT_URL, $url); + curl_setopt($curlh, CURLOPT_AUTOREFERER, true); // # setup referer header when folowing redirects + curl_setopt($curlh, CURLOPT_CONNECTTIMEOUT, 10); // # seconds to wait + curl_setopt($curlh, CURLOPT_MAXREDIRS, $redirs); // # max number of http redirections to follow + curl_setopt($curlh, CURLOPT_USERAGENT, USER_AGENT); + curl_setopt($curlh, CURLOPT_FOLLOWLOCATION, true); // Follow redirects + curl_setopt($curlh, CURLOPT_RETURNTRANSFER, true); + curl_setopt($curlh, CURLOPT_FILETIME, true); + curl_setopt($curlh, CURLOPT_HEADER, true); // Include header in output + return $curlh; + } + + function _redirectWhere_imp($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->id)) { + $b = File_redirection::staticGet('url', $short_url); + if (empty($b->id)) { + // we'll have to figure it out + } else { + // this is a redirect to $b->file_id + $a = File::staticGet($b->file_id); + $url = $a->url; + } + } else { + // this is a direct link to $a->url + $url = $a->url; + } + if (isset($url)) { + return $url; + } + + + + $curlh = File_redirection::_commonCurl($short_url, $redirs); + // Don't include body in output + curl_setopt($curlh, CURLOPT_NOBODY, true); + curl_exec($curlh); + $info = curl_getinfo($curlh); + curl_close($curlh); + + if (405 == $info['http_code']) { + $curlh = File_redirection::_commonCurl($short_url, $redirs); + curl_exec($curlh); + $info = curl_getinfo($curlh); + curl_close($curlh); + } + + if (!empty($info['redirect_count']) && File::isProtected($info['url'])) { + return File_redirection::_redirectWhere_imp($short_url, $info['redirect_count'] - 1, true); + } + + $ret = array('code' => $info['http_code'] + , 'redirects' => $info['redirect_count'] + , 'url' => $info['url']); + + if (!empty($info['content_type'])) $ret['type'] = $info['content_type']; + if ($protected) $ret['protected'] = true; + if (!empty($info['download_content_length'])) $ret['size'] = $info['download_content_length']; + if (isset($info['filetime']) && ($info['filetime'] > 0)) $ret['time'] = $info['filetime']; + return $ret; + } + + function where($in_url) { + $ret = File_redirection::_redirectWhere_imp($in_url); + return $ret; + } + + function makeShort($long_url) { + $long_url = File_redirection::_canonUrl($long_url); + // do we already know this long_url and have a short redirection for it? + $file = new File; + $file_redir = new File_redirection; + $file->url = $long_url; + $file->joinAdd($file_redir); + $file->selectAdd('length(file_redirection.url) as len'); + $file->limit(1); + $file->orderBy('len'); + $file->find(true); + if (!empty($file->id)) { + return $file->url; + } + + // if yet unknown, we must find a short url according to user settings + $short_url = File_redirection::_userMakeShort($long_url, common_current_user()); + return $short_url; + } + + function _userMakeShort($long_url, $user) { + if (empty($user)) { + // common current user does not find a user when called from the XMPP daemon + // therefore we'll set one here fix, so that XMPP given URLs may be shortened + $user->urlshorteningservice = 'ur1.ca'; + } + $curlh = curl_init(); + curl_setopt($curlh, CURLOPT_CONNECTTIMEOUT, 20); // # seconds to wait + curl_setopt($curlh, CURLOPT_USERAGENT, 'Laconica'); + curl_setopt($curlh, CURLOPT_RETURNTRANSFER, true); + + switch($user->urlshorteningservice) { + case 'ur1.ca': + require_once INSTALLDIR.'/lib/Shorturl_api.php'; + $short_url_service = new LilUrl; + $short_url = $short_url_service->shorten($long_url); + break; + + case '2tu.us': + $short_url_service = new TightUrl; + require_once INSTALLDIR.'/lib/Shorturl_api.php'; + $short_url = $short_url_service->shorten($long_url); + break; + + case 'ptiturl.com': + require_once INSTALLDIR.'/lib/Shorturl_api.php'; + $short_url_service = new PtitUrl; + $short_url = $short_url_service->shorten($long_url); + break; + + case 'bit.ly': + curl_setopt($curlh, CURLOPT_URL, 'http://bit.ly/api?method=shorten&long_url='.urlencode($long_url)); + $short_url = current(json_decode(curl_exec($curlh))->results)->hashUrl; + break; + + case 'is.gd': + curl_setopt($curlh, CURLOPT_URL, 'http://is.gd/api.php?longurl='.urlencode($long_url)); + $short_url = curl_exec($curlh); + break; + case 'snipr.com': + curl_setopt($curlh, CURLOPT_URL, 'http://snipr.com/site/snip?r=simple&link='.urlencode($long_url)); + $short_url = curl_exec($curlh); + break; + case 'metamark.net': + curl_setopt($curlh, CURLOPT_URL, 'http://metamark.net/api/rest/simple?long_url='.urlencode($long_url)); + $short_url = curl_exec($curlh); + break; + case 'tinyurl.com': + curl_setopt($curlh, CURLOPT_URL, 'http://tinyurl.com/api-create.php?url='.urlencode($long_url)); + $short_url = curl_exec($curlh); + break; + default: + $short_url = false; + } + + curl_close($curlh); + + if ($short_url) { + $short_url = (string)$short_url; +if(1) { + // store it + $file = File::staticGet('url', $long_url); + if (empty($file)) { + $redir_data = File_redirection::where($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); + } + } else { + $file_id = $file->id; + } + $file_redir = File_redirection::staticGet('url', $short_url); + if (empty($file_redir)) { + $file_redir = new File_redirection; + $file_redir->url = $short_url; + $file_redir->file_id = $file_id; + $file_redir->insert(); + } } + return $short_url; + } + return $long_url; + } + + function _canonUrl($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) { + case 'fax': + case 'tel': + $out_url = str_replace('.-()', '', $out_url); + break; + + case 'mailto': + case 'aim': + case 'jabber': + case 'xmpp': + // don't touch anything + break; + + default: + $out_url = $default_scheme . ltrim($out_url, '/'); + $p = parse_url($out_url); + if (empty($p['scheme'])) return false; + break; + } + } + + if (('ftp' == $p['scheme']) || ('http' == $p['scheme']) || ('https' == $p['scheme'])) { + if (empty($p['host'])) return false; + if (empty($p['path'])) { + $out_url .= '/'; + } + } + + return $out_url; + } + + function saveNew($data, $file_id, $url) { + $file_redir = new File_redirection; + $file_redir->url = $url; + $file_redir->file_id = $file_id; + $file_redir->redirections = intval($data['redirects']); + $file_redir->httpcode = intval($data['code']); + $file_redir->insert(); + } +} + |