3 * Name: Twitter Connector
4 * Description: Relay public postings to a connected Twitter account
6 * Author: Tobias Diekershoff <https://f.diekershoff.de/profile/tobias>
7 * Author: Michael Vogel <https://pirati.ca/profile/heluecht>
9 * Copyright (c) 2011-2013 Tobias Diekershoff, Michael Vogel
10 * All rights reserved.
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions are met:
14 * * Redistributions of source code must retain the above copyright notice,
15 * this list of conditions and the following disclaimer.
16 * * Redistributions in binary form must reproduce the above
17 * * copyright notice, this list of conditions and the following disclaimer in
18 * the documentation and/or other materials provided with the distribution.
19 * * Neither the name of the <organization> nor the names of its contributors
20 * may be used to endorse or promote products derived from this software
21 * without specific prior written permission.
23 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
25 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
26 * DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY DIRECT,
27 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
28 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
29 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
30 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
31 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
32 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
36 /* Twitter Plugin for Friendica
38 * Author: Tobias Diekershoff
39 * tobias.diekershoff@gmx.net
41 * License:3-clause BSD license
44 * To use this plugin you need a OAuth Consumer key pair (key & secret)
45 * you can get it from Twitter at https://twitter.com/apps
47 * Register your Friendica site as "Client" application with "Read & Write" access
48 * we do not need "Twitter as login". When you've registered the app you get the
49 * OAuth Consumer key and secret pair for your application/site.
51 * Add this key pair to your global .htconfig.php or use the admin panel.
53 * $a->config['twitter']['consumerkey'] = 'your consumer_key here';
54 * $a->config['twitter']['consumersecret'] = 'your consumer_secret here';
56 * To activate the plugin itself add it to the $a->config['system']['addon']
57 * setting. After this, your user can configure their Twitter account settings
58 * from "Settings -> Plugin Settings".
60 * Requirements: PHP5, curl [Slinky library]
63 define('TWITTER_DEFAULT_POLL_INTERVAL', 5); // given in minutes
65 function twitter_install() {
66 // we need some hooks, for the configuration and for sending tweets
67 register_hook('connector_settings', 'addon/twitter/twitter.php', 'twitter_settings');
68 register_hook('connector_settings_post', 'addon/twitter/twitter.php', 'twitter_settings_post');
69 register_hook('post_local', 'addon/twitter/twitter.php', 'twitter_post_local');
70 register_hook('notifier_normal', 'addon/twitter/twitter.php', 'twitter_post_hook');
71 register_hook('jot_networks', 'addon/twitter/twitter.php', 'twitter_jot_nets');
72 register_hook('cron', 'addon/twitter/twitter.php', 'twitter_cron');
73 logger("installed twitter");
77 function twitter_uninstall() {
78 unregister_hook('connector_settings', 'addon/twitter/twitter.php', 'twitter_settings');
79 unregister_hook('connector_settings_post', 'addon/twitter/twitter.php', 'twitter_settings_post');
80 unregister_hook('post_local', 'addon/twitter/twitter.php', 'twitter_post_local');
81 unregister_hook('notifier_normal', 'addon/twitter/twitter.php', 'twitter_post_hook');
82 unregister_hook('jot_networks', 'addon/twitter/twitter.php', 'twitter_jot_nets');
83 unregister_hook('cron', 'addon/twitter/twitter.php', 'twitter_cron');
85 // old setting - remove only
86 unregister_hook('post_local_end', 'addon/twitter/twitter.php', 'twitter_post_hook');
87 unregister_hook('plugin_settings', 'addon/twitter/twitter.php', 'twitter_settings');
88 unregister_hook('plugin_settings_post', 'addon/twitter/twitter.php', 'twitter_settings_post');
92 function twitter_jot_nets(&$a,&$b) {
96 $tw_post = get_pconfig(local_user(),'twitter','post');
97 if(intval($tw_post) == 1) {
98 $tw_defpost = get_pconfig(local_user(),'twitter','post_by_default');
99 $selected = ((intval($tw_defpost) == 1) ? ' checked="checked" ' : '');
100 $b .= '<div class="profile-jot-net"><input type="checkbox" name="twitter_enable"' . $selected . ' value="1" /> '
101 . t('Post to Twitter') . '</div>';
105 function twitter_settings_post ($a,$post) {
108 // don't check twitter settings if twitter submit button is not clicked
109 if (!x($_POST,'twitter-submit')) return;
111 if (isset($_POST['twitter-disconnect'])) {
113 * if the twitter-disconnect checkbox is set, clear the OAuth key/secret pair
114 * from the user configuration
116 del_pconfig(local_user(), 'twitter', 'consumerkey');
117 del_pconfig(local_user(), 'twitter', 'consumersecret');
118 del_pconfig(local_user(), 'twitter', 'oauthtoken');
119 del_pconfig(local_user(), 'twitter', 'oauthsecret');
120 del_pconfig(local_user(), 'twitter', 'post');
121 del_pconfig(local_user(), 'twitter', 'post_by_default');
122 del_pconfig(local_user(), 'twitter', 'post_taglinks');
123 del_pconfig(local_user(), 'twitter', 'lastid');
124 del_pconfig(local_user(), 'twitter', 'mirror_posts');
125 del_pconfig(local_user(), 'twitter', 'intelligent_shortening');
127 if (isset($_POST['twitter-pin'])) {
128 // if the user supplied us with a PIN from Twitter, let the magic of OAuth happen
129 logger('got a Twitter PIN');
130 require_once('library/twitteroauth.php');
131 $ckey = get_config('twitter', 'consumerkey');
132 $csecret = get_config('twitter', 'consumersecret');
133 // the token and secret for which the PIN was generated were hidden in the settings
134 // form as token and token2, we need a new connection to Twitter using these token
135 // and secret to request a Access Token with the PIN
136 $connection = new TwitterOAuth($ckey, $csecret, $_POST['twitter-token'], $_POST['twitter-token2']);
137 $token = $connection->getAccessToken( $_POST['twitter-pin'] );
138 // ok, now that we have the Access Token, save them in the user config
139 set_pconfig(local_user(),'twitter', 'oauthtoken', $token['oauth_token']);
140 set_pconfig(local_user(),'twitter', 'oauthsecret', $token['oauth_token_secret']);
141 set_pconfig(local_user(),'twitter', 'post', 1);
142 set_pconfig(local_user(),'twitter', 'post_taglinks', 1);
143 // reload the Addon Settings page, if we don't do it see Bug #42
144 goaway($a->get_baseurl().'/settings/connectors');
146 // if no PIN is supplied in the POST variables, the user has changed the setting
147 // to post a tweet for every new __public__ posting to the wall
148 set_pconfig(local_user(),'twitter','post',intval($_POST['twitter-enable']));
149 set_pconfig(local_user(),'twitter','post_by_default',intval($_POST['twitter-default']));
150 set_pconfig(local_user(),'twitter','post_taglinks',intval($_POST['twitter-sendtaglinks']));
151 set_pconfig(local_user(), 'twitter', 'mirror_posts', intval($_POST['twitter-mirror']));
152 set_pconfig(local_user(), 'twitter', 'intelligent_shortening', intval($_POST['twitter-shortening']));
153 info( t('Twitter settings updated.') . EOL);
156 function twitter_settings(&$a,&$s) {
159 $a->page['htmlhead'] .= '<link rel="stylesheet" type="text/css" href="' . $a->get_baseurl() . '/addon/twitter/twitter.css' . '" media="all" />' . "\r\n";
161 * 1) Check that we have global consumer key & secret
162 * 2) If no OAuthtoken & stuff is present, generate button to get some
163 * 3) Checkbox for "Send public notices (140 chars only)
165 $ckey = get_config('twitter', 'consumerkey' );
166 $csecret = get_config('twitter', 'consumersecret' );
167 $otoken = get_pconfig(local_user(), 'twitter', 'oauthtoken' );
168 $osecret = get_pconfig(local_user(), 'twitter', 'oauthsecret' );
169 $enabled = get_pconfig(local_user(), 'twitter', 'post');
170 $checked = (($enabled) ? ' checked="checked" ' : '');
171 $defenabled = get_pconfig(local_user(),'twitter','post_by_default');
172 $defchecked = (($defenabled) ? ' checked="checked" ' : '');
173 $linksenabled = get_pconfig(local_user(),'twitter','post_taglinks');
174 $linkschecked = (($linksenabled) ? ' checked="checked" ' : '');
175 $mirrorenabled = get_pconfig(local_user(),'twitter','mirror_posts');
176 $mirrorchecked = (($mirrorenabled) ? ' checked="checked" ' : '');
177 $shorteningenabled = get_pconfig(local_user(),'twitter','intelligent_shortening');
178 $shorteningchecked = (($shorteningenabled) ? ' checked="checked" ' : '');
180 $s .= '<div class="settings-block">';
181 $s .= '<h3>'. t('Twitter Posting Settings') .'</h3>';
183 if ( (!$ckey) && (!$csecret) ) {
185 * no global consumer keys
186 * display warning and skip personal config
188 $s .= '<p>'. t('No consumer key pair for Twitter found. Please contact your site administrator.') .'</p>';
191 * ok we have a consumer key pair now look into the OAuth stuff
193 if ( (!$otoken) && (!$osecret) ) {
195 * the user has not yet connected the account to twitter...
196 * get a temporary OAuth key/secret pair and display a button with
197 * which the user can request a PIN to connect the account to a
198 * account at Twitter.
200 require_once('library/twitteroauth.php');
201 $connection = new TwitterOAuth($ckey, $csecret);
202 $request_token = $connection->getRequestToken();
203 $token = $request_token['oauth_token'];
205 * make some nice form
207 $s .= '<p>'. t('At this Friendica instance the Twitter plugin was enabled but you have not yet connected your account to your Twitter account. To do so click the button below to get a PIN from Twitter which you have to copy into the input box below and submit the form. Only your <strong>public</strong> posts will be posted to Twitter.') .'</p>';
208 $s .= '<a href="'.$connection->getAuthorizeURL($token).'" target="_twitter"><img src="addon/twitter/lighter.png" alt="'.t('Log in with Twitter').'"></a>';
209 $s .= '<div id="twitter-pin-wrapper">';
210 $s .= '<label id="twitter-pin-label" for="twitter-pin">'. t('Copy the PIN from Twitter here') .'</label>';
211 $s .= '<input id="twitter-pin" type="text" name="twitter-pin" />';
212 $s .= '<input id="twitter-token" type="hidden" name="twitter-token" value="'.$token.'" />';
213 $s .= '<input id="twitter-token2" type="hidden" name="twitter-token2" value="'.$request_token['oauth_token_secret'].'" />';
214 $s .= '</div><div class="clear"></div>';
215 $s .= '<div class="settings-submit-wrapper" ><input type="submit" name="twitter-submit" class="settings-submit" value="' . t('Submit') . '" /></div>';
218 * we have an OAuth key / secret pair for the user
219 * so let's give a chance to disable the postings to Twitter
221 require_once('library/twitteroauth.php');
222 $connection = new TwitterOAuth($ckey,$csecret,$otoken,$osecret);
223 $details = $connection->get('account/verify_credentials');
224 $s .= '<div id="twitter-info" ><img id="twitter-avatar" src="'.$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>';
225 $s .= '<p>'. t('If enabled all your <strong>public</strong> postings can be posted to the associated Twitter account. You can choose to do so by default (here) or for every posting separately in the posting options when writing the entry.') .'</p>';
226 if ($a->user['hidewall']) {
227 $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>';
229 $s .= '<div id="twitter-enable-wrapper">';
230 $s .= '<label id="twitter-enable-label" for="twitter-checkbox">'. t('Allow posting to Twitter'). '</label>';
231 $s .= '<input id="twitter-checkbox" type="checkbox" name="twitter-enable" value="1" ' . $checked . '/>';
232 $s .= '<div class="clear"></div>';
233 $s .= '<label id="twitter-default-label" for="twitter-default">'. t('Send public postings to Twitter by default') .'</label>';
234 $s .= '<input id="twitter-default" type="checkbox" name="twitter-default" value="1" ' . $defchecked . '/>';
235 $s .= '<div class="clear"></div>';
237 $s .= '<label id="twitter-mirror-label" for="twitter-mirror">'.t('Mirror all posts from twitter that are no replies or retweets').'</label>';
238 $s .= '<input id="twitter-mirror" type="checkbox" name="twitter-mirror" value="1" '. $mirrorchecked . '/>';
239 $s .= '<div class="clear"></div>';
241 $s .= '<label id="twitter-shortening-label" for="twitter-shortening">'.t('Shortening method that optimizes the tweet').'</label>';
242 $s .= '<input id="twitter-shortening" type="checkbox" name="twitter-shortening" value="1" '. $shorteningchecked . '/>';
243 $s .= '<div class="clear"></div>';
245 $s .= '<label id="twitter-sendtaglinks-label" for="twitter-sendtaglinks">'.t('Send linked #-tags and @-names to Twitter').'</label>';
246 $s .= '<input id="twitter-sendtaglinks" type="checkbox" name="twitter-sendtaglinks" value="1" '. $linkschecked . '/>';
247 $s .= '</div><div class="clear"></div>';
249 $s .= '<div id="twitter-disconnect-wrapper">';
250 $s .= '<label id="twitter-disconnect-label" for="twitter-disconnect">'. t('Clear OAuth configuration') .'</label>';
251 $s .= '<input id="twitter-disconnect" type="checkbox" name="twitter-disconnect" value="1" />';
252 $s .= '</div><div class="clear"></div>';
253 $s .= '<div class="settings-submit-wrapper" ><input type="submit" name="twitter-submit" class="settings-submit" value="' . t('Submit') . '" /></div>';
256 $s .= '</div><div class="clear"></div>';
260 function twitter_post_local(&$a,&$b) {
265 if((local_user()) && (local_user() == $b['uid']) && (! $b['private']) && (! $b['parent']) ) {
267 $twitter_post = intval(get_pconfig(local_user(),'twitter','post'));
268 $twitter_enable = (($twitter_post && x($_REQUEST,'twitter_enable')) ? intval($_REQUEST['twitter_enable']) : 0);
270 // if API is used, default to the chosen settings
271 if($_REQUEST['api_source'] && intval(get_pconfig(local_user(),'twitter','post_by_default')))
274 if(! $twitter_enable)
277 if(strlen($b['postopts']))
278 $b['postopts'] .= ',';
279 $b['postopts'] .= 'twitter';
283 if (! function_exists('short_link')) {
284 function short_link ($url) {
285 require_once('library/slinky.php');
286 $slinky = new Slinky( $url );
287 $yourls_url = get_config('yourls','url1');
289 $yourls_username = get_config('yourls','username1');
290 $yourls_password = get_config('yourls', 'password1');
291 $yourls_ssl = get_config('yourls', 'ssl1');
292 $yourls = new Slinky_YourLS();
293 $yourls->set( 'username', $yourls_username );
294 $yourls->set( 'password', $yourls_password );
295 $yourls->set( 'ssl', $yourls_ssl );
296 $yourls->set( 'yourls-url', $yourls_url );
297 $slinky->set_cascade( array( $yourls, new Slinky_UR1ca(), new Slinky_Trim(), new Slinky_IsGd(), new Slinky_TinyURL() ) );
300 // setup a cascade of shortening services
301 // try to get a short link from these services
302 // in the order ur1.ca, trim, id.gd, tinyurl
303 $slinky->set_cascade( array( new Slinky_UR1ca(), new Slinky_Trim(), new Slinky_IsGd(), new Slinky_TinyURL() ) );
305 return $slinky->short();
308 function twitter_shortenmsg($b, $shortlink = false) {
309 require_once("include/bbcode.php");
310 require_once("include/html2plain.php");
314 // Looking for the first image
316 if(preg_match("/\[img\=([0-9]*)x([0-9]*)\](.*?)\[\/img\]/is",$b['body'],$matches))
317 $image = $matches[3];
320 if(preg_match("/\[img\](.*?)\[\/img\]/is",$b['body'],$matches))
321 $image = $matches[1];
323 $multipleimages = (strpos($b['body'], "[img") != strrpos($b['body'], "[img"));
325 // When saved into the database the content is sent through htmlspecialchars
326 // That means that we have to decode all image-urls
327 $image = htmlspecialchars_decode($image);
330 if ($b["title"] != "")
331 $body = $b["title"]."\n\n".$body;
333 if (strpos($body, "[bookmark") !== false) {
334 // splitting the text in two parts:
335 // before and after the bookmark
336 $pos = strpos($body, "[bookmark");
337 $body1 = substr($body, 0, $pos);
338 $body2 = substr($body, $pos);
340 // Removing all quotes after the bookmark
341 // they are mostly only the content after the bookmark.
342 $body2 = preg_replace("/\[quote\=([^\]]*)\](.*?)\[\/quote\]/ism",'',$body2);
343 $body2 = preg_replace("/\[quote\](.*?)\[\/quote\]/ism",'',$body2);
344 $body = $body1.$body2;
347 // Add some newlines so that the message could be cut better
348 $body = str_replace(array("[quote", "[bookmark", "[/bookmark]", "[/quote]"),
349 array("\n[quote", "\n[bookmark", "[/bookmark]\n", "[/quote]\n"), $body);
351 // remove the recycle signs and the names since they aren't helpful on twitter
353 $recycle = html_entity_decode("♲ ", ENT_QUOTES, 'UTF-8');
354 $body = preg_replace( '/'.$recycle.'\[url\=(\w+.*?)\](\w+.*?)\[\/url\]/i', "\n", $body);
356 $recycle = html_entity_decode("◌ ", ENT_QUOTES, 'UTF-8');
357 $body = preg_replace( '/'.$recycle.'\[url\=(\w+.*?)\](\w+.*?)\[\/url\]/i', "\n", $body);
359 // remove the share element
360 //$body = preg_replace("/\[share(.*?)\](.*?)\[\/share\]/ism","\n\n$2\n\n",$body);
362 // At first convert the text to html
363 $html = bbcode($body, false, false, 2);
365 // Then convert it to plain text
366 //$msg = trim($b['title']." \n\n".html2plain($html, 0, true));
367 $msg = trim(html2plain($html, 0, true));
368 $msg = html_entity_decode($msg,ENT_QUOTES,'UTF-8');
370 // Removing multiple newlines
371 while (strpos($msg, "\n\n\n") !== false)
372 $msg = str_replace("\n\n\n", "\n\n", $msg);
374 // Removing multiple spaces
375 while (strpos($msg, " ") !== false)
376 $msg = str_replace(" ", " ", $msg);
381 $msg = preg_replace('/(https?\:\/\/[a-zA-Z0-9\:\/\-\?\&\;\.\=\_\~\#\%\$\!\+\,]+)/i', "", $msg);
386 // look for bookmark-bbcode and handle it with priority
387 if(preg_match("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/is",$b['body'],$matches))
390 $multiplelinks = (strpos($b['body'], "[bookmark") != strrpos($b['body'], "[bookmark"));
392 // If there is no bookmark element then take the first link
394 $links = collecturls($html);
396 foreach($links AS $singlelink) {
397 $img_str = fetch_url($singlelink);
399 $tempfile = tempnam(get_config("system","temppath"), "cache");
400 file_put_contents($tempfile, $img_str);
401 $mime = image_type_to_mime_type(exif_imagetype($tempfile));
404 if (substr($mime, 0, 6) == "image/") {
405 $image = $singlelink;
406 unset($links[$singlelink]);
410 if (sizeof($links) > 0) {
412 $link = current($links);
414 $multiplelinks = (sizeof($links) > 1);
419 $msglink = $b["plink"];
420 else if ($link != "")
422 else if ($multipleimages)
423 $msglink = $b["plink"];
424 else if ($image != "")
427 if (($msglink == "") and strlen($msg) > $max_char)
428 $msglink = $b["plink"];
430 // If the message is short enough then don't modify it.
431 if ((strlen(trim($origmsg)) <= $max_char) AND ($msglink == ""))
432 return(array("msg"=>trim($origmsg), "image"=>""));
434 // If the message is short enough and contains a picture then post the picture as well
435 if ((strlen(trim($origmsg)) <= ($max_char - 20)) AND strpos($origmsg, $msglink))
436 return(array("msg"=>trim($origmsg), "image"=>$image));
438 // If the message is short enough and the link exists in the original message don't modify it as well
439 // -3 because of the bad shortener of twitter
440 if ((strlen(trim($origmsg)) <= ($max_char - 3)) AND strpos($origmsg, $msglink))
441 return(array("msg"=>trim($origmsg), "image"=>""));
443 // Preserve the unshortened link
444 $orig_link = $msglink;
446 //if (strlen($msglink) > 20)
447 // $msglink = short_link($msglink);
449 //if (strlen(trim($msg." ".$msglink)) > ($max_char - 3)) {
450 // $msg = substr($msg, 0, ($max_char - 3) - (strlen($msglink)));
452 // Just replace the message link with a 20 character long string
453 // Twitter shortens it anyway to this length
454 // 15 should be enough - but sometimes posts don't get posted - although they would fit.
455 if (trim($msglink) <> '')
456 $msglink = "123456789012345";
457 // $msglink = "12345678901234567890";
459 if (strlen(trim($msg." ".$msglink)) > ($max_char)) {
460 $msg = substr($msg, 0, ($max_char) - (strlen($msglink)));
461 $lastchar = substr($msg, -1);
462 $msg = substr($msg, 0, -1);
463 $pos = strrpos($msg, "\n");
465 $msg = substr($msg, 0, $pos);
466 else if ($lastchar != "\n")
467 $msg = substr($msg, 0, -3)."...";
469 // if the post contains a picture and a link then the system tries to cut the post earlier.
470 // So the link and the picture can be posted.
471 if (($image != "") AND ($orig_link != $image)) {
472 $msg2 = substr($msg, 0, ($max_char - 20) - (strlen($msglink)));
473 $lastchar = substr($msg2, -1);
474 $msg2 = substr($msg2, 0, -1);
475 $pos = strrpos($msg2, "\n");
477 $msg = substr($msg2, 0, $pos);
478 else if ($lastchar == "\n")
483 //$msg = str_replace("\n", " ", $msg);
485 // Removing multiple spaces - again
486 while (strpos($msg, " ") !== false)
487 $msg = str_replace(" ", " ", $msg);
489 // Removing multiple newlines
490 //while (strpos($msg, "\n\n") !== false)
491 // $msg = str_replace("\n\n", "\n", $msg);
493 // Looking if the link points to an image
494 $img_str = fetch_url($orig_link);
496 $tempfile = tempnam(get_config("system","temppath"), "cache");
497 file_put_contents($tempfile, $img_str);
498 $mime = image_type_to_mime_type(exif_imagetype($tempfile));
501 if (($image == $orig_link) OR (substr($mime, 0, 6) == "image/"))
502 return(array("msg"=>trim($msg), "image"=>$orig_link));
503 else if (($image != $orig_link) AND ($image != "") AND (strlen($msg."\n".$msglink) <= ($max_char - 20))) {
505 $orig_link = short_link($orig_link);
507 return(array("msg"=>trim($msg."\n".$orig_link), "image"=>$image));
510 $orig_link = short_link($orig_link);
512 return(array("msg"=>trim($msg."\n".$orig_link), "image"=>""));
516 function twitter_post_hook(&$a,&$b) {
522 if($b['deleted'] || $b['private'] || ($b['created'] !== $b['edited']))
525 if(! strstr($b['postopts'],'twitter'))
528 if($b['parent'] != $b['id'])
531 // if post comes from twitter don't send it back
532 if($b['app'] == "Twitter")
535 logger('twitter post invoked');
538 load_pconfig($b['uid'], 'twitter');
540 $ckey = get_config('twitter', 'consumerkey');
541 $csecret = get_config('twitter', 'consumersecret');
542 $otoken = get_pconfig($b['uid'], 'twitter', 'oauthtoken');
543 $osecret = get_pconfig($b['uid'], 'twitter', 'oauthsecret');
544 $intelligent_shortening = get_pconfig($b['uid'], 'twitter', 'intelligent_shortening');
546 // Global setting overrides this
547 if (get_config('twitter','intelligent_shortening'))
548 $intelligent_shortening = get_config('twitter','intelligent_shortening');
550 if($ckey && $csecret && $otoken && $osecret) {
551 logger('twitter: we have customer key and oauth stuff, going to send.', LOGGER_DEBUG);
553 require_once('library/twitteroauth.php');
554 require_once('include/bbcode.php');
555 $tweet = new TwitterOAuth($ckey,$csecret,$otoken,$osecret);
556 // in theory max char is 140 but T. uses t.co to make links
557 // longer so we give them 10 characters extra
558 if (!$intelligent_shortening) {
559 $max_char = 130; // max. length for a tweet
560 // we will only work with up to two times the length of the dent
561 // we can later send to Twitter. This way we can "gain" some
562 // information during shortening of potential links but do not
563 // shorten all the links in a 200000 character long essay.
564 if (! $b['title']=='') {
565 $tmp = $b['title'] . ' : '. $b['body'];
566 // $tmp = substr($tmp, 0, 4*$max_char);
568 $tmp = $b['body']; // substr($b['body'], 0, 3*$max_char);
570 // if [url=bla][img]blub.png[/img][/url] get blub.png
571 $tmp = preg_replace( '/\[url\=(https?\:\/\/[a-zA-Z0-9\:\/\-\?\&\;\.\=\_\~\#\%\$\!\+\,]+)\]\[img\](\\w+.*?)\\[\\/img\]\\[\\/url\]/i', '$2', $tmp);
572 // preserve links to images, videos and audios
573 $tmp = preg_replace( '/\[img\=([0-9]*)x([0-9]*)\](.*?)\[\/img\]/ism', '$3', $tmp);
574 $tmp = preg_replace( '/\[\\/?img(\\s+.*?\]|\])/i', '', $tmp);
575 $tmp = preg_replace( '/\[\\/?video(\\s+.*?\]|\])/i', '', $tmp);
576 $tmp = preg_replace( '/\[\\/?youtube(\\s+.*?\]|\])/i', '', $tmp);
577 $tmp = preg_replace( '/\[\\/?vimeo(\\s+.*?\]|\])/i', '', $tmp);
578 $tmp = preg_replace( '/\[\\/?audio(\\s+.*?\]|\])/i', '', $tmp);
579 $linksenabled = get_pconfig($b['uid'],'twitter','post_taglinks');
580 // if a #tag is linked, don't send the [url] over to SN
581 // that is, don't send if the option is not set in the
582 // connector settings
583 if ($linksenabled=='0') {
585 $tmp = preg_replace( '/#\[url\=(\w+.*?)\](\w+.*?)\[\/url\]/i', '#$2', $tmp);
587 $tmp = preg_replace( '/@\[url\=(\w+.*?)\](\w+.*?)\[\/url\]/i', '@$2', $tmp);
589 $recycle = html_entity_decode("♲ ", ENT_QUOTES, 'UTF-8');
590 $tmp = preg_replace( '/'.$recycle.'\[url\=(\w+.*?)\](\w+.*?)\[\/url\]/i', $recycle.'$2', $tmp);
592 $recycle = html_entity_decode("◌ ", ENT_QUOTES, 'UTF-8');
593 $tmp = preg_replace( '/'.$recycle.'\[url\=(\w+.*?)\](\w+.*?)\[\/url\]/i', $recycle.'$2', $tmp);
595 $tmp = preg_replace( '/\[url\=(https?\:\/\/[a-zA-Z0-9\:\/\-\?\&\;\.\=\_\~\#\%\$\!\+\,]+)\](\w+.*?)\[\/url\]/i', '$2 $1', $tmp);
596 $tmp = preg_replace( '/\[bookmark\=(https?\:\/\/[a-zA-Z0-9\:\/\-\?\&\;\.\=\_\~\#\%\$\!\+\,]+)\](\w+.*?)\[\/bookmark\]/i', '$2 $1', $tmp);
597 // find all http or https links in the body of the entry and
598 // apply the shortener if the link is longer then 20 characters
599 if (( strlen($tmp)>$max_char ) && ( $max_char > 0 )) {
600 preg_match_all ( '/(https?\:\/\/[a-zA-Z0-9\:\/\-\?\&\;\.\=\_\~\#\%\$\!\+\,]+)/i', $tmp, $allurls );
601 foreach ($allurls as $url) {
602 foreach ($url as $u) {
604 $sl = short_link($u);
605 $tmp = str_replace( $u, $sl, $tmp );
610 // ok, all the links we want to send out are save, now strip
611 // away the remaining bbcode
612 //$msg = strip_tags(bbcode($tmp, false, false));
613 $msg = bbcode($tmp, false, false, true);
614 $msg = str_replace(array('<br>','<br />'),"\n",$msg);
615 $msg = strip_tags($msg);
617 // quotes not working - let's try this
618 $msg = html_entity_decode($msg);
619 if (( strlen($msg) > $max_char) && $max_char > 0) {
620 $shortlink = short_link( $b['plink'] );
621 // the new message will be shortened such that "... $shortlink"
622 // will fit into the character limit
623 $msg = nl2br(substr($msg, 0, $max_char-strlen($shortlink)-4));
624 $msg = str_replace(array('<br>','<br />'),' ',$msg);
625 $e = explode(' ', $msg);
626 // remove the last word from the cut down message to
627 // avoid sending cut words to the MicroBlog
629 $msg = implode(' ', $e);
630 $msg .= '... ' . $shortlink;
636 $msgarr = twitter_shortenmsg($b);
637 $msg = $msgarr["msg"];
638 $image = $msgarr["image"];
640 // and now tweet it :-)
641 if(strlen($msg) and ($image != "")) {
642 $img_str = fetch_url($image);
644 $tempfile = tempnam(get_config("system","temppath"), "cache");
645 file_put_contents($tempfile, $img_str);
647 // For testing purposes
648 // trying a new library for twitter
650 // Switching completely to this library with all functions
651 require_once("addon/twitter/codebird.php");
653 $cb = \Codebird\Codebird::getInstance();
654 $cb->setConsumerKey($ckey, $csecret);
655 $cb->setToken($otoken, $osecret);
656 $result = $cb->statuses_updateWithMedia(array('status' => $msg, 'media[]' => $tempfile));
660 $mime = image_type_to_mime_type(exif_imagetype($tempfile));
663 $filename = "upload";
665 $result = $tweet->post('statuses/update_with_media', array('media[]' => "{$img_str};type=".$mime.";filename={$filename}" , 'status' => $msg));
668 logger('twitter_post_with_media send, result: ' . print_r($result, true), LOGGER_DEBUG);
669 if ($result->errors OR $result->error) {
670 logger('Send to Twitter failed: "' . $result->errors . '"');
671 // Workaround: Remove the picture link so that the post can be reposted without it
677 if(strlen($msg) and ($image == "")) {
678 $result = $tweet->post('statuses/update', array('status' => $msg));
679 logger('twitter_post send, result: ' . print_r($result, true), LOGGER_DEBUG);
680 if ($result->errors OR $result->error) {
681 logger('Send to Twitter failed: "' . $result->errors . '"');
684 // Sometims Twitter seems to think that posts are too long - although they aren't
688 // Reduce the maximum length
689 if ($intelligent_shortening) {
690 $msgarr = twitter_shortenmsg($b, true);
691 $msg = $msgarr["msg"];
692 $image = $msgarr["image"];
693 $result = $tweet->post('statuses/update', array('status' => $msg));
694 logger('twitter_post send, result: ' . print_r($result, true), LOGGER_DEBUG);
702 function twitter_plugin_admin_post(&$a){
703 $consumerkey = ((x($_POST,'consumerkey')) ? notags(trim($_POST['consumerkey'])) : '');
704 $consumersecret = ((x($_POST,'consumersecret')) ? notags(trim($_POST['consumersecret'])): '');
705 $applicationname = ((x($_POST, 'applicationname')) ? notags(trim($_POST['applicationname'])):'');
706 set_config('twitter','consumerkey',$consumerkey);
707 set_config('twitter','consumersecret',$consumersecret);
708 set_config('twitter','application_name',$applicationname);
709 info( t('Settings updated.'). EOL );
711 function twitter_plugin_admin(&$a, &$o){
712 $t = get_markup_template( "admin.tpl", "addon/twitter/" );
714 $o = replace_macros($t, array(
715 '$submit' => t('Submit'),
716 // name, label, value, help, [extra values]
717 '$consumerkey' => array('consumerkey', t('Consumer key'), get_config('twitter', 'consumerkey' ), ''),
718 '$consumersecret' => array('consumersecret', t('Consumer secret'), get_config('twitter', 'consumersecret' ), ''),
719 '$applicationname' => array('applicationname', t('Name of the Twitter Application'), get_config('twitter','application_name'),t('set this to avoid mirroring postings from ~friendica back to ~friendica'))
723 function twitter_cron($a,$b) {
724 $last = get_config('twitter','last_poll');
726 $poll_interval = intval(get_config('twitter','poll_interval'));
728 $poll_interval = TWITTER_DEFAULT_POLL_INTERVAL;
731 $next = $last + ($poll_interval * 60);
733 logger('twitter: poll intervall not reached');
737 logger('twitter: cron_start');
739 $r = q("SELECT * FROM `pconfig` WHERE `cat` = 'twitter' AND `k` = 'mirror_posts' AND `v` = '1' ORDER BY RAND() ");
742 logger('twitter: fetching for user '.$rr['uid']);
743 twitter_fetchtimeline($a, $rr['uid']);
747 logger('twitter: cron_end');
749 set_config('twitter','last_poll', time());
752 function twitter_fetchtimeline($a, $uid) {
753 $ckey = get_config('twitter', 'consumerkey');
754 $csecret = get_config('twitter', 'consumersecret');
755 $otoken = get_pconfig($uid, 'twitter', 'oauthtoken');
756 $osecret = get_pconfig($uid, 'twitter', 'oauthsecret');
757 $lastid = get_pconfig($uid, 'twitter', 'lastid');
759 $application_name = get_config('twitter', 'application_name');
761 if ($application_name == "")
762 $application_name = $a->get_hostname();
764 require_once('library/twitteroauth.php');
765 $connection = new TwitterOAuth($ckey,$csecret,$otoken,$osecret);
767 $parameters = array("exclude_replies" => true, "trim_user" => true, "contributor_details" => false, "include_rts" => false);
769 $first_time = ($lastid == "");
772 $parameters["since_id"] = $lastid;
774 $items = $connection->get('statuses/user_timeline', $parameters);
776 if (!is_array($items))
779 $posts = array_reverse($items);
782 foreach ($posts as $post) {
783 if ($post->id_str > $lastid)
784 $lastid = $post->id_str;
789 if (!strpos($post->source, $application_name)) {
790 $_SESSION["authenticated"] = true;
791 $_SESSION["uid"] = $uid;
794 $_REQUEST["type"] = "wall";
795 $_REQUEST["api_source"] = true;
796 $_REQUEST["profile_uid"] = $uid;
797 $_REQUEST["source"] = "Twitter";
799 //$_REQUEST["date"] = $post->created_at;
801 $_REQUEST["title"] = "";
803 $_REQUEST["body"] = $post->text;
804 if (is_string($post->place->name))
805 $_REQUEST["location"] = $post->place->name;
807 if (is_string($post->place->full_name))
808 $_REQUEST["location"] = $post->place->full_name;
810 if (is_array($post->geo->coordinates))
811 $_REQUEST["coord"] = $post->geo->coordinates[0]." ".$post->geo->coordinates[1];
813 if (is_array($post->coordinates->coordinates))
814 $_REQUEST["coord"] = $post->coordinates->coordinates[1]." ".$post->coordinates->coordinates[0];
816 //print_r($_REQUEST);
817 logger('twitter: posting for user '.$uid);
819 require_once('mod/item.php');
825 set_pconfig($uid, 'twitter', 'lastid', $lastid);