X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=classes%2FFile_redirection.php;h=0eae68178373757bf3bf5f042850610d4a341d9a;hb=21aad16b58e98f61aded9c102adaef7616a6728f;hp=e2d1e69c382704abdf3907d4c3d7ea92ac490b23;hpb=d010d811ba812ccc8fbb1a49fcba7a30226ea779;p=quix0rs-gnu-social.git

diff --git a/classes/File_redirection.php b/classes/File_redirection.php
index e2d1e69c38..0eae681783 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 +47,228 @@ 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;
+            // 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();
+    }
 }
+