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<?php
/* StatusNet Plugin for Friendika
*
* Author: Tobias Diekershoff
* tobias.diekershoff@gmx.net
*
* License:3-clause BSD license (same as Friendika)
*
* Configuration:
* 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/StatusNet_Plugin
*/
/* __TODO__
*
* - what about multimedia content?
* so far we just strip HTML tags from the message
*/
/***
* We have to alter the TwitterOAuth class a little bit to work with any StatusNet
* installation abroad. Basically it's only make the API path variable and be happy.
*
* Thank you guys for the Twitter compatible API!
*/
require_once('addon/twitter/twitteroauth.php');
class StatusNetOAuth extends TwitterOAuth {
function get_maxlength() {
$config = $this->get($this->host . 'statusnet/config.json');
return $config->site->textlimit;
}
function accessTokenURL() { return $this->host.'oauth/access_token'; }
function authenticateURL() { return $this->host.'oauth/authenticate'; }
function authorizeURL() { return $this->host.'oauth/authorize'; }
function requestTokenURL() { return $this->host.'oauth/request_token'; }
function __construct($apipath, $consumer_key, $consumer_secret, $oauth_token = NULL, $oauth_token_secret = NULL) {
parent::__construct($consumer_key, $consumer_secret, $oauth_token, $oauth_token_secret);
$this->host = $apipath;
}
}
function statusnet_install() {
// we need some hooks, for the configuration and for sending tweets
register_hook('plugin_settings', 'addon/statusnet/statusnet.php', 'statusnet_settings');
register_hook('plugin_settings_post', 'addon/statusnet/statusnet.php', 'statusnet_settings_post');
register_hook('post_local_end', 'addon/statusnet/statusnet.php', 'statusnet_post_hook');
logger("installed statusnet");
}
function statusnet_uninstall() {
unregister_hook('plugin_settings', 'addon/statusnet/statusnet.php', 'statusnet_settings');
unregister_hook('plugin_settings_post', 'addon/statusnet/statusnet.php', 'statusnet_settings_post');
unregister_hook('post_local_end', 'addon/statusnet/statusnet.php', 'statusnet_post_hook');
}
function statusnet_settings_post ($a,$post) {
if(! local_user())
return;
if (isset($_POST['statusnet-disconnect'])) {
/***
* if the statusnet-disconnect checkbox is set, clear the statusnet configuration
* TODO can we revoke the access tokens at Twitter and do we need to do so?
*/
del_pconfig( local_user(), 'statusnet', 'consumerkey' );
del_pconfig( local_user(), 'statusnet', 'consumersecret' );
del_pconfig( local_user(), 'statusnet', 'post' );
del_pconfig( local_user(), 'statusnet', 'oauthtoken' );
del_pconfig( local_user(), 'statusnet', 'oauthsecret' );
del_pconfig( local_user(), 'statusnet', 'baseapi' );
} else {
if (isset($_POST['statusnet-consumersecret'])) {
set_pconfig(local_user(), 'statusnet', 'consumerkey', $_POST['statusnet-consumerkey']);
set_pconfig(local_user(), 'statusnet', 'consumersecret', $_POST['statusnet-consumersecret']);
set_pconfig(local_user(), 'statusnet', 'baseapi', $_POST['statusnet-baseapi']);
header('Location: '.$a->get_baseurl().'/settings/addon');
} else {
if (isset($_POST['statusnet-pin'])) {
// if the user supplied us with a PIN from Twitter, let the magic of OAuth happen
logger('got a StatusNet security code');
$api = get_pconfig(local_user(), 'statusnet', 'baseapi');
$ckey = get_pconfig(local_user(), 'statusnet', 'consumerkey' );
$csecret = get_pconfig(local_user(), 'statusnet', '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
$connection = new StatusNetOAuth($api, $ckey, $csecret, $_POST['statusnet-token'], $_POST['statusnet-token2']);
$token = $connection->getAccessToken( $_POST['statusnet-pin'] );
// ok, now that we have the Access Token, save them in the user config
set_pconfig(local_user(),'statusnet', 'oauthtoken', $token['oauth_token']);
set_pconfig(local_user(),'statusnet', 'oauthsecret', $token['oauth_token_secret']);
set_pconfig(local_user(),'statusnet', 'post', 1);
// reload the Addon Settings page, if we don't do it see Bug #42
header('Location: '.$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(),'statusnet','post',intval($_POST['statusnet-enable']));
}}}
}
function statusnet_settings(&$a,&$s) {
if(! local_user())
return;
$a->page['htmlhead'] .= '<link rel="stylesheet" type="text/css" href="' . $a->get_baseurl() . '/addon/statusnet/statusnet.css' . '" media="all" />' . "\r\n";
/***
* 1) Check that we have a base api url and a consumer key & secret
* 2) If no OAuthtoken & stuff is present, generate button to get some
* 3) Checkbox for "Send public notices (respect size limitation)
*/
$api = get_pconfig(local_user(), 'statusnet', 'baseapi');
$ckey = get_pconfig(local_user(), 'statusnet', 'consumerkey' );
$csecret = get_pconfig(local_user(), 'statusnet', 'consumersecret' );
$otoken = get_pconfig(local_user(), 'statusnet', 'oauthtoken' );
$osecret = get_pconfig(local_user(), 'statusnet', 'oauthsecret' );
$enabled = get_pconfig(local_user(), 'statusnet', 'post');
$checked = (($enabled) ? ' checked="checked" ' : '');
$s .= '<h3>'.t('StatusNet Posting Settings').'</h3>';
if ( (!$ckey) && (!$csecret) ) {
/***
* no consumer keys
*/
$s .= '<p>'.t('No consumer key pair for StatusNet found. Register your Friendika Account as an desktop client on your StatusNet account, copy the consumer key pair here and enter the API base root.<br />Before you register your own OAuth key pair ask the administrator if there is already a key pair for this Friendika installation at your favorited StatusNet installation.').'</p>';
$s .= '<div id="statusnet-consumer-wrapper">';
$s .= '<label id="statusnet-consumerkey-label" for="statusnet-consumerkey">OAuth Consumer Key</label>';
$s .= '<input id="statusnet-consumerkey" type="text" name="statusnet-consumerkey" size="35" /><br />';
$s .= '<label id="statusnet-consumersecret-label" for="statusnet-consumersecret">OAuth Consumer Secret</label>';
$s .= '<input id="statusnet-consumersecret" type="text" name="statusnet-consumersecret" size="35" /><br />';
$s .= '<label id="statusnet-baseapi-label" for="statusnet-baseapi">Base API Path (remember the trailing /)</label>';
$s .= '<input id="statusnet-baseapi" type="text" name="statusnet-baseapi" size="35" /><br />';
$s .= '</div><div class="clear"></div>';
$s .= '<div class="settings-submit-wrapper" ><input type="submit" name="submit" class="settings-submit" value="' . t('Submit') . '" /></div>';
} else {
/***
* ok we have a consumer key pair now look into the OAuth stuff
*/
if ( (!$otoken) && (!$osecret) ) {
/***
* the user has not yet connected the account to statusnet
* 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 statusnet
*/
$connection = new StatusNetOAuth($api, $ckey, $csecret);
$request_token = $connection->getRequestToken('oob');
$token = $request_token['oauth_token'];
/***
* make some nice form
*/
$s .= '<p>'.t('To connect to your StatusNet account click the button below to get a security code from StatusNet which you have to copy into the input box below and submit the form. Only your <strong>public</strong> posts will be posted to StatusNet.').'</p>';
$s .= '<a href="'.$connection->getAuthorizeURL($token,False).'" target="_statusnet"><img src="addon/statusnet/signinwithstatusnet.png" alt="'.t('Log in with StatusNet').'"></a>';
$s .= '<div id="statusnet-pin-wrapper">';
$s .= '<label id="statusnet-pin-label" for="statusnet-pin">'.t('Copy the PIN from StatusNet here').'</label>';
$s .= '<input id="statusnet-pin" type="text" name="statusnet-pin" />';
$s .= '<input id="statusnet-token" type="hidden" name="statusnet-token" value="'.$token.'" />';
$s .= '<input id="statusnet-token2" type="hidden" name="statusnet-token2" value="'.$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 statusnet
*/
$connection = new StatusNetOAuth($api,$ckey,$csecret,$otoken,$osecret);
$details = $connection->get('account/verify_credentials');
$s .= '<div id="statusnet-info" ><img id="statusnet-avatar" src="'.$details->profile_image_url.'" /><p id="statusnet-info-block">'.t('Currently connected to: ').'<a href="'.$details->statusnet_profile_url.'" target="_statusnet">'.$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 StatusNet account as well.').'</p>';
$s .= '<div id="statusnet-enable-wrapper">';
$s .= '<label id="statusnet-enable-label" for="statusnet-checkbox">'.t('Send public postings to StatusNet').'</label>';
$s .= '<input id="statusnet-checkbox" type="checkbox" name="statusnet-enable" value="1" ' . $checked . '/>';
$s .= '</div><div class="clear"></div>';
$s .= '<div id="statusnet-disconnect-wrapper">';
$s .= '<label id="statusnet-disconnect-label" for="statusnet-disconnect">'.t('Clear OAuth configuration').'</label>';
$s .= '<input id="statusnet-disconnect" type="checkbox" name="statusnet-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>';
}
}
$s .= '</div><div class="clear"></div>';
}
function statusnet_post_hook(&$a,&$b) {
/**
* Post to statusnet
*/
logger('StatusNet post invoked');
if((local_user()) && (local_user() == $b['uid']) && (! $b['private'])) {
load_pconfig(local_user(), 'statusnet');
$api = get_pconfig(local_user(), 'statusnet', 'baseapi');
$ckey = get_pconfig(local_user(), 'statusnet', 'consumerkey' );
$csecret = get_pconfig(local_user(), 'statusnet', 'consumersecret' );
$otoken = get_pconfig(local_user(), 'statusnet', 'oauthtoken' );
$osecret = get_pconfig(local_user(), 'statusnet', 'oauthsecret' );
if($ckey && $csecret && $otoken && $osecret) {
$statusnet_post = get_pconfig(local_user(),'statusnet','post');
if($statusnet_post) {
require_once('include/bbcode.php');
$dent = new StatusNetOAuth($api,$ckey,$csecret,$otoken,$osecret);
$max_char = $dent->get_maxlength(); // max. length for a dent
$msg = strip_tags(bbcode($b['body']));
if ( strlen($msg) > $max_char) {
$shortlink = "";
require_once('addon/statusnet/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 :-)
$dent->post('statuses/update', array('status' => $msg));
}
}
}
}
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