]> git.mxchange.org Git - friendica-addons.git/blobdiff - twitter/twitter.php
Merge pull request #14 from fabrixxm/master
[friendica-addons.git] / twitter / twitter.php
index ef5908396cb393cac3db1bfd88242ea73fa96aa1..fd0324635fa5c407eb65a98b08e814297b570d0e 100755 (executable)
@@ -1,7 +1,8 @@
 <?php
 /**
  * Name: Twitter Connector
- * Version: 1.0.1
+ * Description: Relay public postings to a connected StatusNet account
+ * Version: 1.0.2
  * Author: Tobias Diekershoff <https://diekershoff.homeunix.net/friendika/profile/tobias>
  */
 
  *     Documentation: http://diekershoff.homeunix.net/redmine/wiki/friendikaplugin/Twitter_Plugin
  */
 
-/*   __TODO__
- *
- *   - what about multimedia content?
- *     so far we just strip HTML tags from the message
- */
-
 function twitter_install() {
        //  we need some hooks, for the configuration and for sending tweets
        register_hook('connector_settings', 'addon/twitter/twitter.php', 'twitter_settings'); 
@@ -188,6 +183,9 @@ function twitter_settings(&$a,&$s) {
                        $details = $connection->get('account/verify_credentials');
                        $s .= '<div id="twitter-info" ><img id="twitter-avatar" src="'.$details->profile_image_url.'" /><p id="twitter-info-block">'. t('Currently connected to: ') .'<a href="https://twitter.com/'.$details->screen_name.'" target="_twitter">'.$details->screen_name.'</a><br /><em>'.$details->description.'</em></p></div>';
                        $s .= '<p>'. t('If enabled all your <strong>public</strong> postings can be posted to the associated Twitter account. You can choose to do so by default (here) or for every posting separately in the posting options when writing the entry.') .'</p>';
+                        if ($a->user['hidewall']) {
+                            $s .= '<p>'. t('<strong>Note</strong>: Due your privacy settings (<em>Hide your profile details from unknown viewers?</em>) the link potentially included in public postings relayed to Twitter will lead the visitor to a blank page informing the visitor that the access to your profile has been restricted.') .'</p>';
+                        }
                        $s .= '<div id="twitter-enable-wrapper">';
                        $s .= '<label id="twitter-enable-label" for="twitter-checkbox">'. t('Allow posting to Twitter'). '</label>';
                        $s .= '<input id="twitter-checkbox" type="checkbox" name="twitter-enable" value="1" ' . $checked . '/>';
@@ -230,6 +228,30 @@ function twitter_post_local(&$a,&$b) {
        }
 }
 
+if (! function_exists('short_link')) {
+function short_link ($url) {
+    require_once('library/slinky.php');
+    $slinky = new Slinky( $url );
+    $yourls_url = get_config('yourls','url1');
+    if ($yourls_url) {
+            $yourls_username = get_config('yourls','username1');
+            $yourls_password = get_config('yourls', 'password1');
+            $yourls_ssl = get_config('yourls', 'ssl1');
+            $yourls = new Slinky_YourLS();
+            $yourls->set( 'username', $yourls_username );
+            $yourls->set( 'password', $yourls_password );
+            $yourls->set( 'ssl', $yourls_ssl );
+            $yourls->set( 'yourls-url', $yourls_url );
+            $slinky->set_cascade( array( $yourls, new Slinky_UR1ca(), new Slinky_Trim(), new Slinky_IsGd(), new Slinky_TinyURL() ) );
+    }
+    else {
+            // setup a cascade of shortening services
+            // try to get a short link from these services
+            // in the order ur1.ca, trim, id.gd, tinyurl
+            $slinky->set_cascade( array( new Slinky_UR1ca(), new Slinky_Trim(), new Slinky_IsGd(), new Slinky_TinyURL() ) );
+    }
+    return $slinky->short();
+} };
 
 function twitter_post_hook(&$a,&$b) {
 
@@ -262,33 +284,51 @@ function twitter_post_hook(&$a,&$b) {
                require_once('library/twitteroauth.php');
                require_once('include/bbcode.php');     
                $tweet = new TwitterOAuth($ckey,$csecret,$otoken,$osecret);
-               $max_char = 138; // max. length for a tweet
-               $msg = strip_tags(bbcode($b['body']));
-               if ( strlen($msg) > $max_char) {
-                       logger('Twitter: have to shorten the message to fit 140 chars', LOGGER_DEBUG);
-                       $shortlink = "";
-                       require_once('library/slinky.php');
-                       $slinky = new Slinky( $b['plink'] );
-                       $yourls_url = get_config('yourls','url1');
-                       if ($yourls_url) {
-                               $max_char = 135;
-                               $yourls_username = get_config('yourls','username1');
-                               $yourls_password = get_config('yourls', 'password1');
-                               $yourls_ssl = get_config('yourls', 'ssl1');
-                               $yourls = new Slinky_YourLS();
-                               $yourls->set( 'username', $yourls_username );
-                               $yourls->set( 'password', $yourls_password );
-                               $yourls->set( 'ssl', $yourls_ssl );
-                               $yourls->set( 'yourls-url', $yourls_url );
-                               $slinky->set_cascade( array( $yourls, new Slinky_UR1ca(), new Slinky_Trim(), new Slinky_IsGd(), new Slinky_TinyURL() ) );
-                       }
-                       else {
-                               // setup a cascade of shortening services
-                               // try to get a short link from these services
-                               // in the order ur1.ca, trim, id.gd, tinyurl
-                               $slinky->set_cascade( array( new Slinky_UR1ca(), new Slinky_Trim(), new Slinky_IsGd(), new Slinky_TinyURL() ) );
-                       }
-                       $shortlink = $slinky->short();
+                // in theory max char is 140 but T. uses t.co to make links 
+                // longer so we give them 10 characters extra
+               $max_char = 130; // max. length for a tweet
+                // we will only work with up to two times the length of the dent 
+                // we can later send to StatusNet. This way we can "gain" some 
+                // information during shortening of potential links but do not 
+                // shorten all the links in a 200000 character long essay.
+                $tmp = substr($b['body'], 0, 2*$max_char);
+                // if [url=bla][img]blub.png[/img][/url] get blub.png
+                $tmp = preg_replace( '/\[url\=(https?\:\/\/[a-zA-Z0-9\:\/\-\?\&\;\.\=\_\~\#\%\$\!\+\,]+)\]\[img\](\\w+.*?)\\[\\/img\]\\[\\/url\]/i', '$2', $tmp);
+                // preserve links to images, videos and audios
+                $tmp = preg_replace( '/\[img\=([0-9]*)x([0-9]*)\](.*?)\[\/img\]/ism', '$3', $tmp);
+                $tmp = preg_replace( '/\[\\/?img(\\s+.*?\]|\])/i', '', $tmp);
+                $tmp = preg_replace( '/\[\\/?video(\\s+.*?\]|\])/i', '', $tmp);
+                $tmp = preg_replace( '/\[\\/?youtube(\\s+.*?\]|\])/i', '', $tmp);
+                $tmp = preg_replace( '/\[\\/?vimeo(\\s+.*?\]|\])/i', '', $tmp);
+                $tmp = preg_replace( '/\[\\/?audio(\\s+.*?\]|\])/i', '', $tmp);
+                // if a #tag is linked, don't send the [url] over to SN
+                //   this is commented out by default as it means backlinks
+                //   to friendica, if you don't like this feel free to
+                //   uncomment the following line
+//                $tmp = preg_replace( '/#\[url\=(\w+.*?)\](\w+.*?)\[\/url\]/i', '#$2', $tmp);
+                // preserve links to webpages
+                $tmp = preg_replace( '/\[url\=(https?\:\/\/[a-zA-Z0-9\:\/\-\?\&\;\.\=\_\~\#\%\$\!\+\,]+)\](\w+.*?)\[\/url\]/i', '$2 $1', $tmp);
+                $tmp = preg_replace( '/\[bookmark\=(https?\:\/\/[a-zA-Z0-9\:\/\-\?\&\;\.\=\_\~\#\%\$\!\+\,]+)\](\w+.*?)\[\/bookmark\]/i', '$2 $1', $tmp);
+                // find all http or https links in the body of the entry and 
+                // apply the shortener if the link is longer then 20 characters 
+                if (( strlen($tmp)>$max_char ) && ( $max_char > 0 )) {
+                    preg_match_all ( '/(https?\:\/\/[a-zA-Z0-9\:\/\-\?\&\;\.\=\_\~\#\%\$\!\+\,]+)/i', $tmp, $allurls  );
+                    foreach ($allurls as $url) {
+                        foreach ($url as $u) {
+                            if (strlen($u)>20) {
+                                $sl = short_link($u);
+                                $tmp = str_replace( $u, $sl, $tmp );
+                            }
+                        }
+                    }
+                }
+                // ok, all the links we want to send out are save, now strip 
+                // away the remaining bbcode
+               $msg = strip_tags(bbcode($tmp));
+               // quotes not working - let's try this
+               $msg = html_entity_decode($msg);
+               if (( strlen($msg) > $max_char) && $max_char > 0) {
+                       $shortlink = short_link( $b['plink'] );
                        // the new message will be shortened such that "... $shortlink"
                        // will fit into the character limit
                        $msg = substr($msg, 0, $max_char-strlen($shortlink)-4);