X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=addon%2Ftwitter%2Ftwitter.php;h=1dce9d2f66a38b5b0b6b28f1ec55742504b33442;hb=8cc6e69705c40b942ff74f757d8db743c479646a;hp=9fccefbee0ea1b8b1711ac9d662d2cdbea455241;hpb=31d447126aefbe1bdb14ed5a4a6b7d84845e9f29;p=friendica.git

diff --git a/addon/twitter/twitter.php b/addon/twitter/twitter.php
index 9fccefbee0..1dce9d2f66 100644
--- a/addon/twitter/twitter.php
+++ b/addon/twitter/twitter.php
@@ -1,16 +1,191 @@
 <?php
+/**
+ * Name: Twitter Connector
+ * Version: 1.0
+ * Author: Tobias Diekershoff <https://diekershoff.homeunix.net/friendika/profile/tobias>
+ */
 
 
+/*   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__
+ *
+ *   - 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');
+	register_hook('jot_networks', 'addon/twitter/twitter.php', 'twitter_jot_nets');
+	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');
+	unregister_hook('jot_networks', 'addon/twitter/twitter.php', 'twitter_jot_nets');
+}
+
+function twitter_jot_nets(&$a,&$b) {
+	if(! local_user())
+		return;
+
+	$tw_post = get_pconfig(local_user(),'twitter','post');
+	if(intval($tw_post) == 1) {
+		$tw_defpost = get_pconfig(local_user(),'twitter','post_by_default');
+		$selected = ((intval($tw_defpost) == 1) ? ' checked="checked" ' : '');
+		$b .= '<div class="profile-jot-net"><input type="checkbox" name="twitter_enable"' . $selected . 'value="1" /> ' 
+			. t('Post to Twitter') . '</div>';	
+	}
+
+
 }
 
+function twitter_settings_post ($a,$post) {
+	if(! local_user())
+		return;
+	// don't check twitter settings if twitter submit button is not clicked	
+	if (!x($_POST,'twitter-submit')) return;
+	
+	if (isset($_POST['twitter-disconnect'])) {
+		/***
+		 * if the twitter-disconnect checkbox is set, clear the OAuth key/secret pair
+		 * from the user configuration
+		 * 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('library/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($_POST['twitter-enable']));
+	}}
+}
+function twitter_settings(&$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 .= '<div class="settings-block">';
+	$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('library/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="twitter-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('library/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-enable" 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="twitter-submit" class="settings-submit" value="' . t('Submit') . '" /></div>'; 
+		}
+	}
+        $s .= '</div><div class="clear"></div></div>';
+}
 
 
 function twitter_post_hook(&$a,&$b) {
@@ -19,28 +194,75 @@ function twitter_post_hook(&$a,&$b) {
 	 * Post to Twitter
 	 */
 
-	if((local_user()) && (local_user() == $b['uid']) && (! $b['private'])) {
+        logger('twitter post invoked');
+
+	if((local_user()) && (local_user() == $b['uid']) && (! $b['private']) && (! $b['parent']) ) {
+
+		// Twitter is not considered a private network
+		if($b['prvnets'])
+			return;
+
 
 		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' );
 
 		if($ckey && $csecret && $otoken && $osecret) {
 
-			$twitter_post = get_pconfig(local_user(),'twitter','post');
+			$twitter_post = intval(get_pconfig(local_user(),'twitter','post'));
+			$twitter_enable = (($twitter_post && x($_POST,'twitter_enable')) ? intval($_POST['twitter_enable']) : 0);
 
-			if($twitter_post) {
-				require_once('addon/twitter/twitteroauth.php');
+			if($twitter_post && $twitter_enable) {
+				logger('Posting to Twitter', LOGGER_DEBUG);
+				require_once('library/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('library/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 .= '... ' . $shortlink;
+				}
+                // and now tweet it :-)
+				if(strlen($msg))
+					$tweet->post('statuses/update', array('status' => $msg));
 			}
 		}
 	}
 }
 
-
+function twitter_plugin_admin_post(&$a){
+	$consumerkey	=	((x($_POST,'consumerkey'))		? notags(trim($_POST['consumerkey']))	: '');
+	$consumersecret	=	((x($_POST,'consumersecret'))	? notags(trim($_POST['consumersecret'])): '');
+	set_config('twitter','consumerkey',$consumerkey);
+	set_config('twitter','consumersecret',$consumersecret);
+	info( t('Settings updated.'). EOL );
+}
+function twitter_plugin_admin(&$a, &$o){
+	$t = file_get_contents( dirname(__file__). "/admin.tpl" );
+	$o = replace_macros($t, array(
+		'$submit' => t('Submit'),
+								// name, label, value, help, [extra values]
+		'$consumerkey' => array('consumerkey', t('Consumer key'),  get_config('twitter', 'consumerkey' ), ''),
+		'$consumersecret' => array('consumersecret', t('Consumer secret'),  get_config('twitter', 'consumersecret' ), '')
+	));
+}