3 * Name: Twitter Connector
5 * Author: Tobias Diekershoff <https://diekershoff.homeunix.net/friendika/profile/tobias>
9 /* Twitter Plugin for Friendika
11 * Author: Tobias Diekershoff
12 * tobias.diekershoff@gmx.net
14 * License:3-clause BSD license
17 * To use this plugin you need a OAuth Consumer key pair (key & secret)
18 * you can get it from Twitter at https://twitter.com/apps
20 * Register your Friendika site as "Client" application with "Read & Write" access
21 * we do not need "Twitter as login". When you've registered the app you get the
22 * OAuth Consumer key and secret pair for your application/site.
24 * Add this key pair to your global .htconfig.php
26 * $a->config['twitter']['consumerkey'] = 'your consumer_key here';
27 * $a->config['twitter']['consumersecret'] = 'your consumer_secret here';
29 * To activate the plugin itself add it to the $a->config['system']['addon']
30 * setting. After this, your user can configure their Twitter account settings
31 * from "Settings -> Plugin Settings".
33 * Requirements: PHP5, curl [Slinky library]
35 * Documentation: http://diekershoff.homeunix.net/redmine/wiki/friendikaplugin/Twitter_Plugin
40 * - what about multimedia content?
41 * so far we just strip HTML tags from the message
44 function twitter_install() {
45 // we need some hooks, for the configuration and for sending tweets
46 register_hook('connector_settings', 'addon/twitter/twitter.php', 'twitter_settings');
47 register_hook('connector_settings_post', 'addon/twitter/twitter.php', 'twitter_settings_post');
48 register_hook('post_local_end', 'addon/twitter/twitter.php', 'twitter_post_hook');
49 register_hook('jot_networks', 'addon/twitter/twitter.php', 'twitter_jot_nets');
50 logger("installed twitter");
54 function twitter_uninstall() {
55 unregister_hook('connector_settings', 'addon/twitter/twitter.php', 'twitter_settings');
56 unregister_hook('connector_settings_post', 'addon/twitter/twitter.php', 'twitter_settings_post');
57 unregister_hook('plugin_settings', 'addon/twitter/twitter.php', 'twitter_settings');
58 unregister_hook('plugin_settings_post', 'addon/twitter/twitter.php', 'twitter_settings_post');
59 unregister_hook('post_local_end', 'addon/twitter/twitter.php', 'twitter_post_hook');
60 unregister_hook('jot_networks', 'addon/twitter/twitter.php', 'twitter_jot_nets');
63 function twitter_jot_nets(&$a,&$b) {
67 $tw_post = get_pconfig(local_user(),'twitter','post');
68 if(intval($tw_post) == 1) {
69 $tw_defpost = get_pconfig(local_user(),'twitter','post_by_default');
70 $selected = ((intval($tw_defpost) == 1) ? ' checked="checked" ' : '');
71 $b .= '<div class="profile-jot-net"><input type="checkbox" name="twitter_enable"' . $selected . ' value="1" /> '
72 . t('Post to Twitter') . '</div>';
78 function twitter_settings_post ($a,$post) {
81 // don't check twitter settings if twitter submit button is not clicked
82 if (!x($_POST,'twitter-submit')) return;
84 if (isset($_POST['twitter-disconnect'])) {
86 * if the twitter-disconnect checkbox is set, clear the OAuth key/secret pair
87 * from the user configuration
88 * TODO can we revoke the access tokens at Twitter and do we need to do so?
90 del_pconfig( local_user(), 'twitter', 'consumerkey' );
91 del_pconfig( local_user(), 'twitter', 'consumersecret' );
92 del_pconfig( local_user(), 'twitter', 'post' );
93 del_pconfig( local_user(), 'twitter', 'post_by_default' );
95 if (isset($_POST['twitter-pin'])) {
96 // if the user supplied us with a PIN from Twitter, let the magic of OAuth happen
97 logger('got a Twitter PIN');
98 require_once('library/twitteroauth.php');
99 $ckey = get_config('twitter', 'consumerkey' );
100 $csecret = get_config('twitter', 'consumersecret' );
101 // the token and secret for which the PIN was generated were hidden in the settings
102 // form as token and token2, we need a new connection to Twitter using these token
103 // and secret to request a Access Token with the PIN
104 $connection = new TwitterOAuth($ckey, $csecret, $_POST['twitter-token'], $_POST['twitter-token2']);
105 $token = $connection->getAccessToken( $_POST['twitter-pin'] );
106 // ok, now that we have the Access Token, save them in the user config
107 set_pconfig(local_user(),'twitter', 'oauthtoken', $token['oauth_token']);
108 set_pconfig(local_user(),'twitter', 'oauthsecret', $token['oauth_token_secret']);
109 set_pconfig(local_user(),'twitter', 'post', 1);
110 // reload the Addon Settings page, if we don't do it see Bug #42
111 goaway($a->get_baseurl().'/settings/connectors');
113 // if no PIN is supplied in the POST variables, the user has changed the setting
114 // to post a tweet for every new __public__ posting to the wall
115 set_pconfig(local_user(),'twitter','post',intval($_POST['twitter-enable']));
116 set_pconfig(local_user(),'twitter','post_by_default',intval($_POST['twitter-default']));
117 info( t('Twitter settings updated.') . EOL);
120 function twitter_settings(&$a,&$s) {
123 $a->page['htmlhead'] .= '<link rel="stylesheet" type="text/css" href="' . $a->get_baseurl() . '/addon/twitter/twitter.css' . '" media="all" />' . "\r\n";
125 * 1) Check that we have global consumer key & secret
126 * 2) If no OAuthtoken & stuff is present, generate button to get some
127 * 3) Checkbox for "Send public notices (140 chars only)
129 $ckey = get_config('twitter', 'consumerkey' );
130 $csecret = get_config('twitter', 'consumersecret' );
131 $otoken = get_pconfig(local_user(), 'twitter', 'oauthtoken' );
132 $osecret = get_pconfig(local_user(), 'twitter', 'oauthsecret' );
133 $enabled = get_pconfig(local_user(), 'twitter', 'post');
134 $checked = (($enabled) ? ' checked="checked" ' : '');
135 $defenabled = get_pconfig(local_user(),'twitter','post_by_default');
136 $defchecked = (($defenabled) ? ' checked="checked" ' : '');
138 $s .= '<div class="settings-block">';
139 $s .= '<h3>'. t('Twitter Posting Settings') .'</h3>';
141 if ( (!$ckey) && (!$csecret) ) {
143 * no global consumer keys
144 * display warning and skip personal config
146 $s .= '<p>'. t('No consumer key pair for Twitter found. Please contact your site administrator.') .'</p>';
149 * ok we have a consumer key pair now look into the OAuth stuff
151 if ( (!$otoken) && (!$osecret) ) {
153 * the user has not yet connected the account to twitter...
154 * get a temporary OAuth key/secret pair and display a button with
155 * which the user can request a PIN to connect the account to a
156 * account at Twitter.
158 require_once('library/twitteroauth.php');
159 $connection = new TwitterOAuth($ckey, $csecret);
160 $request_token = $connection->getRequestToken();
161 $token = $request_token['oauth_token'];
163 * make some nice form
165 $s .= '<p>'. t('At this Friendika 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>';
166 $s .= '<a href="'.$connection->getAuthorizeURL($token).'" target="_twitter"><img src="addon/twitter/lighter.png" alt="'.t('Log in with Twitter').'"></a>';
167 $s .= '<div id="twitter-pin-wrapper">';
168 $s .= '<label id="twitter-pin-label" for="twitter-pin">'. t('Copy the PIN from Twitter here') .'</label>';
169 $s .= '<input id="twitter-pin" type="text" name="twitter-pin" />';
170 $s .= '<input id="twitter-token" type="hidden" name="twitter-token" value="'.$token.'" />';
171 $s .= '<input id="twitter-token2" type="hidden" name="twitter-token2" value="'.$request_token['oauth_token_secret'].'" />';
172 $s .= '</div><div class="clear"></div>';
173 $s .= '<div class="settings-submit-wrapper" ><input type="submit" name="twitter-submit" class="settings-submit" value="' . t('Submit') . '" /></div>';
176 * we have an OAuth key / secret pair for the user
177 * so let's give a chance to disable the postings to Twitter
179 require_once('library/twitteroauth.php');
180 $connection = new TwitterOAuth($ckey,$csecret,$otoken,$osecret);
181 $details = $connection->get('account/verify_credentials');
182 $s .= '<div id="twitter-info" ><img id="twitter-avatar" src="'.$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>';
183 $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>';
184 $s .= '<div id="twitter-enable-wrapper">';
185 $s .= '<label id="twitter-enable-label" for="twitter-checkbox">'. t('Allow posting to Twitter'). '</label>';
186 $s .= '<input id="twitter-checkbox" type="checkbox" name="twitter-enable" value="1" ' . $checked . '/>';
187 $s .= '<div class="clear"></div>';
188 $s .= '<label id="twitter-default-label" for="twitter-default">'. t('Send public postings to Twitter by default') .'</label>';
189 $s .= '<input id="twitter-default" type="checkbox" name="twitter-default" value="1" ' . $defchecked . '/>';
190 $s .= '</div><div class="clear"></div>';
192 $s .= '<div id="twitter-disconnect-wrapper">';
193 $s .= '<label id="twitter-disconnect-label" for="twitter-disconnect">'. t('Clear OAuth configuration') .'</label>';
194 $s .= '<input id="twitter-disconnect" type="checkbox" name="twitter-disconnect" value="1" />';
195 $s .= '</div><div class="clear"></div>';
196 $s .= '<div class="settings-submit-wrapper" ><input type="submit" name="twitter-submit" class="settings-submit" value="' . t('Submit') . '" /></div>';
199 $s .= '</div><div class="clear"></div></div>';
203 function twitter_post_hook(&$a,&$b) {
209 logger('twitter post invoked');
211 if((local_user()) && (local_user() == $b['uid']) && (! $b['private']) && (! $b['parent']) ) {
213 // Twitter is not considered a private network
218 load_pconfig(local_user(), 'twitter');
220 $ckey = get_config('twitter', 'consumerkey' );
221 $csecret = get_config('twitter', 'consumersecret' );
222 $otoken = get_pconfig(local_user(), 'twitter', 'oauthtoken' );
223 $osecret = get_pconfig(local_user(), 'twitter', 'oauthsecret' );
225 if($ckey && $csecret && $otoken && $osecret) {
227 $twitter_post = intval(get_pconfig(local_user(),'twitter','post'));
228 $twitter_enable = (($twitter_post && x($_POST,'twitter_enable')) ? intval($_POST['twitter_enable']) : 0);
230 // if API is used, default to the chosen settings
231 if($_POST['api_source'] && intval(get_pconfig(local_user(),'twitter','post_by_default')))
234 if($twitter_post && $twitter_enable) {
235 logger('Posting to Twitter', LOGGER_DEBUG);
236 require_once('library/twitteroauth.php');
237 require_once('include/bbcode.php');
238 $tweet = new TwitterOAuth($ckey,$csecret,$otoken,$osecret);
239 $max_char = 140; // max. length for a tweet
240 $msg = strip_tags(bbcode($b['body']));
241 if ( strlen($msg) > $max_char) {
243 require_once('library/slinky.php');
244 // post url = base url + /display/ + owner + post id
245 // we construct this from the Owner link and replace
246 // profile by display - this will cause an error when
247 // /profile/ is in the owner url twice but I don't
248 // think this will be very common...
249 $posturl = str_replace('/profile/','/display/',$b['owner-link']).'/'.$b['id'];
250 $slinky = new Slinky( $posturl );
251 // setup a cascade of shortening services
252 // try to get a short link from these services
253 // in the order ur1.ca, trim, id.gd, tinyurl
254 $slinky->set_cascade( array( new Slinky_UR1ca(), new Slinky_Trim(), new Slinky_IsGd(), new Slinky_TinyURL() ) );
255 $shortlink = $slinky->short();
256 // the new message will be shortened such that "... $shortlink"
257 // will fit into the character limit
258 $msg = substr($msg, 0, $max_char-strlen($shortlink)-4);
259 $msg .= '... ' . $shortlink;
261 // and now tweet it :-)
263 $result = $tweet->post('statuses/update', array('status' => $msg));
264 logger('twitter_post returns: ' . $result);
272 function twitter_plugin_admin_post(&$a){
273 $consumerkey = ((x($_POST,'consumerkey')) ? notags(trim($_POST['consumerkey'])) : '');
274 $consumersecret = ((x($_POST,'consumersecret')) ? notags(trim($_POST['consumersecret'])): '');
275 set_config('twitter','consumerkey',$consumerkey);
276 set_config('twitter','consumersecret',$consumersecret);
277 info( t('Settings updated.'). EOL );
279 function twitter_plugin_admin(&$a, &$o){
280 $t = file_get_contents( dirname(__file__). "/admin.tpl" );
281 $o = replace_macros($t, array(
282 '$submit' => t('Submit'),
283 // name, label, value, help, [extra values]
284 '$consumerkey' => array('consumerkey', t('Consumer key'), get_config('twitter', 'consumerkey' ), ''),
285 '$consumersecret' => array('consumersecret', t('Consumer secret'), get_config('twitter', 'consumersecret' ), '')