diff options
Diffstat (limited to 'addon/twitter/twitter.php')
| -rw-r--r-- | addon/twitter/twitter.php | 187 |
1 files changed, 180 insertions, 7 deletions
diff --git a/addon/twitter/twitter.php b/addon/twitter/twitter.php index 9fccefbee..7d4cf1514 100644 --- a/addon/twitter/twitter.php +++ b/addon/twitter/twitter.php @@ -1,16 +1,166 @@ <?php +/* Twitter Plugin for Friendika + * + * Author: Tobias Diekershoff + * tobias.diekershoff@gmx.net + * + * License:3-clause BSD license (same as Friendika) + * + * Configuration: + * To use this plugin you need a OAuth Consumer key pair (key & secret) + * you can get it from Twitter at https://twitter.com/apps + * + * Register your Friendika site as "Client" application with "Read & Write" access + * we do not need "Twitter as login". When you've registered the app you get the + * OAuth Consumer key and secret pair for your application/site. + * + * Add this key pair to your global .htconfig.php + * + * $a->config['twitter']['consumerkey'] = 'your consumer_key here'; + * $a->config['twitter']['consumersecret'] = 'your consumer_secret here'; + * + * To activate the plugin itself add it to the $a->config['system']['addon'] + * setting. After this, your user can configure their Twitter account settings + * from "Settings -> Plugin Settings". + * + * Requirements: PHP5, curl [Slinky library] + * + * Documentation: http://diekershoff.homeunix.net/redmine/wiki/friendikaplugin/Twitter_Plugin + */ + +/* __TODO__ + * + * - deletion of the OAuth credentials does not work + * - what about multimedia content? + * so far we just strip HTML tags from the message + */ function twitter_install() { + // we need some hooks, for the configuration and for sending tweets + register_hook('plugin_settings', 'addon/twitter/twitter.php', 'twitter_settings'); + register_hook('plugin_settings_post', 'addon/twitter/twitter.php', 'twitter_settings_post'); register_hook('post_local_end', 'addon/twitter/twitter.php', 'twitter_post_hook'); + logger("installed twitter"); } function twitter_uninstall() { + unregister_hook('plugin_settings', 'addon/twitter/twitter.php', 'twitter_settings'); + unregister_hook('plugin_settings_post', 'addon/twitter/twitter.php', 'twitter_settings_post'); unregister_hook('post_local_end', 'addon/twitter/twitter.php', 'twitter_post_hook'); } - +function twitter_settings_post ($a,$post) { + if(! local_user()) + return; + if (isset($_POST['twitter-disconnect'])) { + /*** + * if the twitter-disconnect checkbox is set, clear the OAuth key/secret pair + * from the user configuration + * TODO this does not work that way!? + * TODO can we revoke the access tokens at Twitter and do we need to do so? + */ + del_pconfig( local_user(), 'twitter', 'consumerkey' ); + del_pconfig( local_user(), 'twitter', 'consumersecret' ); + del_pconfig( local_user(), 'twitter', 'post' ); + } else { + if (isset($_POST['twitter-pin'])) { + // if the user supplied us with a PIN from Twitter, let the magic of OAuth happen + logger('got a Twitter PIN'); + require_once('addon/twitter/twitteroauth.php'); + $ckey = get_config('twitter', 'consumerkey' ); + $csecret = get_config('twitter', 'consumersecret' ); + // the token and secret for which the PIN was generated were hidden in the settings + // form as token and token2, we need a new connection to Twitter using these token + // and secret to request a Access Token with the PIN + $connection = new TwitterOAuth($ckey, $csecret, $_POST['twitter-token'], $_POST['twitter-token2']); + $token = $connection->getAccessToken( $_POST['twitter-pin'] ); + // ok, now that we have the Access Token, save them in the user config + set_pconfig(local_user(),'twitter', 'oauthtoken', $token['oauth_token']); + set_pconfig(local_user(),'twitter', 'oauthsecret', $token['oauth_token_secret']); + set_pconfig(local_user(),'twitter', 'post', 1); + // reload the Addon Settings page, if we don't do it see Bug #42 + header('Location: '.$a->get_baseurl().'/settings/addon'); + } else { + // if no PIN is supplied in the POST variables, the user has changed the setting + // to post a tweet for every new __public__ posting to the wall + set_pconfig(local_user(),'twitter','post',intval($_POST['twitter'])); + }} +} +function twitter_settings(&$a,&$s) { + if(! local_user()) + return; + $a->page['htmlhead'] .= '<link rel="stylesheet" type="text/css" href="' . $a->get_baseurl() . '/addon/twitter/twitter.css' . '" media="all" />' . "\r\n"; + /*** + * 1) Check that we have global consumer key & secret + * 2) If no OAuthtoken & stuff is present, generate button to get some + * 3) Checkbox for "Send public notices (140 chars only) + */ + $ckey = get_config('twitter', 'consumerkey' ); + $csecret = get_config('twitter', 'consumersecret' ); + $otoken = get_pconfig(local_user(), 'twitter', 'oauthtoken' ); + $osecret = get_pconfig(local_user(), 'twitter', 'oauthsecret' ); + $enabled = get_pconfig(local_user(), 'twitter', 'post'); + $checked = (($enabled) ? ' checked="checked" ' : ''); + $s .= '<h3>'.t('Twitter Posting Settings').'</h3>'; + + if ( (!$ckey) && (!$csecret) ) { + /*** + * no global consumer keys + * display warning and skip personal config + */ + $s .= '<p>'.t('No consumer key pair for Twitter found. Please contact your site administrator.').'</p>'; + } else { + /*** + * ok we have a consumer key pair now look into the OAuth stuff + */ + if ( (!$otoken) && (!$osecret) ) { + /*** + * the user has not yet connected the account to twitter... + * get a temporary OAuth key/secret pair and display a button with + * which the user can request a PIN to connect the account to a + * account at Twitter. + */ + require_once('addon/twitter/twitteroauth.php'); + $connection = new TwitterOAuth($ckey, $csecret); + $request_token = $connection->getRequestToken(); + $token = $request_token['oauth_token']; + /*** + * make some nice form + */ + $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>'; + $s .= '<a href="'.$connection->getAuthorizeURL($token).'" target="_twitter"><img src="addon/twitter/lighter.png" alt="'.t('Log in with Twitter').'></a>'; + $s .= '<div id="twitter-pin-wrapper">'; + $s .= '<label id="twitter-pin-label" for="twitter-pin">'.t('Copy the PIN from Twitter here').'</label>'; + $s .= '<input id="twitter-pin" type="text" name="twitter-pin" />'; + $s .= '<input id="twitter-token" type="hidden" name="twitter-token" value="'.$token.'" />'; + $s .= '<input id="twitter-token2" type="hidden" name="twitter-token2" value="'.$request_token['oauth_token_secret'].'" />'; + $s .= '</div><div class="clear"></div>'; + $s .= '<div class="settings-submit-wrapper" ><input type="submit" name="submit" class="settings-submit" value="' . t('Submit') . '" /></div>'; + } else { + /*** + * we have an OAuth key / secret pair for the user + * so let's give a chance to disable the postings to Twitter + */ + require_once('addon/twitter/twitteroauth.php'); + $connection = new TwitterOAuth($ckey,$csecret,$otoken,$osecret); + $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 will be posted to the associated Twitter account as well.').'</p>'; + $s .= '<div id="twitter-enable-wrapper">'; + $s .= '<label id="twitter-enable-label" for="twitter-checkbox">'.t('Send public postings to Twitter').'</label>'; + $s .= '<input id="twitter-checkbox" type="checkbox" name="twitter" value="1" ' . $checked . '/>'; + $s .= '</div><div class="clear"></div>'; + $s .= '<div id="twitter-disconnect-wrapper">'; + $s .= '<label id="twitter-disconnect-label" for="twitter-disconnect">'.t('Clear OAuth configuration').'</label>'; + $s .= '<input id="twitter-disconnect" type="checkbox" name="twitter-disconnect" value="1" />'; + $s .= '</div><div class="clear"></div>'; + $s .= '<div class="settings-submit-wrapper" ><input type="submit" name="submit" class="settings-submit" value="' . t('Submit') . '" /></div>'; + } + } + $s .= '</div><div class="clear"></div>'; +} function twitter_post_hook(&$a,&$b) { @@ -19,12 +169,14 @@ function twitter_post_hook(&$a,&$b) { * Post to Twitter */ + logger('twitter post invoked'); + if((local_user()) && (local_user() == $b['uid']) && (! $b['private'])) { load_pconfig(local_user(), 'twitter'); - $ckey = get_pconfig(local_user(), 'twitter', 'consumerkey' ); - $csecret = get_pconfig(local_user(), 'twitter', 'consumersecret' ); + $ckey = get_config('twitter', 'consumerkey' ); + $csecret = get_config('twitter', 'consumersecret' ); $otoken = get_pconfig(local_user(), 'twitter', 'oauthtoken' ); $osecret = get_pconfig(local_user(), 'twitter', 'oauthsecret' ); @@ -35,12 +187,33 @@ function twitter_post_hook(&$a,&$b) { if($twitter_post) { require_once('addon/twitter/twitteroauth.php'); require_once('include/bbcode.php'); - $tweet = new TwitterOAuth($ckey,$csecret,$otoken,$osecret); - $tweet->post('statuses/update', array('status' => bbcode($b['body']))); + $max_char = 140; // max. length for a tweet + $msg = strip_tags(bbcode($b['body'])); + if ( strlen($msg) > $max_char) { + $shortlink = ""; + require_once('addon/twitter/slinky.php'); + // post url = base url + /display/ + owner + post id + // we construct this from the Owner link and replace + // profile by display - this will cause an error when + // /profile/ is in the owner url twice but I don't + // think this will be very common... + $posturl = str_replace('/profile/','/display/',$b['owner-link']).'/'.$b['id']; + $slinky = new Slinky( $posturl ); + // 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(); + // the new message will be shortened such that "... $shortlink" + // will fit into the character limit + $msg = substr($msg, 0, $max_char-strlen($shortlink)-4); + $msg .= '... ' . $shortlink; + } + // and now tweet it :-) + $tweet->post('statuses/update', array('status' => $msg)); } } - } + } } - |