--- /dev/null
+<?php
+/**
+ * An english language definition file
+ */
+
+$english = array(
+ 'twitterservice' => 'Twitter Services',
+
+ 'twitterservice:requires_oauth' => 'Twitter Services requires the OAuth Libraries plugin to be enabled.',
+
+ 'twitterservice:consumer_key' => 'Consumer Key',
+ 'twitterservice:consumer_secret' => 'Consumer Secret',
+
+ 'twitterservice:settings:instructions' => 'You must obtain a consumer key and secret from <a href="https://twitter.com/oauth_clients" target="_blank">Twitter</a>. Most of the fields are self explanatory, the one piece of data you will need is the callback url which takes the form http://[yoursite]/action/twitterlogin/return - [yoursite] is the url of your Elgg network.',
+
+ 'twitterservice:usersettings:description' => "Link your {$CONFIG->site->name} account with Twitter.",
+ 'twitterservice:usersettings:request' => "You must first <a href=\"%s\">authorize</a> {$CONFIG->site->name} to access your Twitter account.",
+ 'twitterservice:authorize:error' => 'Unable to authorize Twitter.',
+ 'twitterservice:authorize:success' => 'Twitter access has been authorized.',
+
+ 'twitterservice:usersettings:authorized' => "You have authorized {$CONFIG->site->name} to access your Twitter account: @%s.",
+ 'twitterservice:usersettings:revoke' => 'Click <a href="%s">here</a> to revoke access.',
+ 'twitterservice:revoke:success' => 'Twitter access has been revoked.',
+
+ 'twitterservice:login' => 'Allow users to sign in with Twitter?',
+ 'twitterservice:login:success' => 'You have been logged in.',
+ 'twitterservice:login:error' => 'Unable to login with Twitter.',
+ 'twitterservice:login:email' => "You must enter a valid email address for your new {$CONFIG->site->name} account.",
+);
+
+add_translation('en', $english);
\ No newline at end of file
--- /dev/null
+<?xml version="1.0" encoding="UTF-8"?>
+<plugin_manifest>
+ <field key="name" value="Twitter Services" />
+ <field key="author" value="Curverider" />
+ <field key="version" value="1.8" />
+ <field key="description" value="Allows users to authenticate their Elgg account with Twitter." />
+ <field key="category" value="service" />
+ <field key="category" value="official" />
+ <field key="website" value="http://www.elgg.org/" />
+ <field key="copyright" value="(C) Curverider 2010" />
+ <field key="licence" value="GNU Public License version 2" />
+ <field key="elgg_version" value="2010040201" />
+ <field key="depends" value="oauth_lib" />
+</plugin_manifest>
--- /dev/null
+<?php
+/**
+ * Elgg Twitter Service
+ * This service plugin allows users to authenticate their Elgg account with Twitter.
+ *
+ * @package TwitterService
+ * @license http://www.gnu.org/licenses/old-licenses/gpl-2.0.html GNU Public License version 2
+ * @copyright Curverider Ltd 2008-2010
+ */
+
+register_elgg_event_handler('init','system','twitterservice_init');
+function twitterservice_init() {
+ global $CONFIG;
+ $notice_id = 'twitter_services_disable';
+
+ if (!is_plugin_enabled('oauth_lib')) {
+ // disable the plugin
+ disable_plugin('twitterservice');
+
+ // alert the admin
+ if (!elgg_admin_notice_exists($notice_id)) {
+ elgg_add_admin_notice($notice_id, elgg_echo('twitterservice:requires_oauth'));
+ }
+ } else {
+ // cleanup notices
+ elgg_delete_admin_notice($notice_id);
+
+ // require libraries
+ require_once "{$CONFIG->pluginspath}twitterservice/vendors/twitteroauth/twitterOAuth.php";
+ require_once "{$CONFIG->pluginspath}twitterservice/twitterservice_lib.php";
+
+ // extend site views
+ elgg_extend_view('metatags', 'twitterservice/metatags');
+ elgg_extend_view('css', 'twitterservice/css');
+
+ // sign on with twitter
+ if (twitterservice_allow_sign_on_with_twitter()) {
+ elgg_extend_view('login/extend', 'twitterservice/login');
+ }
+
+ // register page handler
+ register_page_handler('twitterservice', 'twitterservice_pagehandler');
+
+ // register Walled Garden public pages
+ register_plugin_hook('public_pages', 'walled_garden', 'twitterservice_public_pages');
+
+ // allow plugin authors to hook into this service
+ register_plugin_hook('tweet', 'twitter_service', 'twitterservice_tweet');
+ }
+}
+
+function twitterservice_pagehandler($page) {
+ if (!isset($page[0])) {
+ forward();
+ }
+
+ switch ($page[0]) {
+ case 'authorize':
+ twitterservice_authorize();
+ break;
+ case 'revoke':
+ twitterservice_revoke();
+ break;
+ case 'forward':
+ twitterservice_forward();
+ break;
+ case 'login':
+ twitterservice_login();
+ break;
+ default:
+ forward();
+ break;
+ }
+}
+
+function twitterservice_tweet($hook, $entity_type, $returnvalue, $params) {
+ static $plugins;
+ if (!$plugins) {
+ $plugins = trigger_plugin_hook('plugin_list', 'twitter_service', NULL, array());
+ }
+
+ // ensure valid plugin
+ if (!in_array($params['plugin'], $plugins)) {
+ return NULL;
+ }
+
+ // check admin settings
+ $consumer_key = get_plugin_setting('consumer_key', 'twitterservice');
+ $consumer_secret = get_plugin_setting('consumer_secret', 'twitterservice');
+ if (!($consumer_key && $consumer_secret)) {
+ return NULL;
+ }
+
+ // check user settings
+ $user_id = get_loggedin_userid();
+ $access_key = get_plugin_usersetting('access_key', $user_id, 'twitterservice');
+ $access_secret = get_plugin_usersetting('access_secret', $user_id, 'twitterservice');
+ if (!($access_key && $access_secret)) {
+ return NULL;
+ }
+
+ // send tweet
+ $api = new TwitterOAuth($consumer_key, $consumer_secret, $access_key, $access_secret);
+ $response = $api->post('statuses/update', array('status' => $params['message']));
+
+ return TRUE;
+}
+
+function twitterservice_fetch_tweets($user_id, $options=array()) {
+ // check admin settings
+ $consumer_key = get_plugin_setting('consumer_key', 'twitterservice');
+ $consumer_secret = get_plugin_setting('consumer_secret', 'twitterservice');
+ if (!($consumer_key && $consumer_secret)) {
+ return FALSE;
+ }
+
+ // check user settings
+ $access_key = get_plugin_usersetting('access_key', $user_id, 'twitterservice');
+ $access_secret = get_plugin_usersetting('access_secret', $user_id, 'twitterservice');
+ if (!($access_key && $access_secret)) {
+ return FALSE;
+ }
+
+ // fetch tweets
+ $api = new TwitterOAuth($consumer_key, $consumer_secret, $access_key, $access_secret);
+ return $api->get('statuses/user_timeline', $options);
+}
+
+function twitterservice_public_pages($hook, $type, $return_value, $params) {
+ $return_value[] = 'pg/twitterservice/forward';
+ $return_value[] = 'pg/twitterservice/login';
+
+ return $return_value;
+}
--- /dev/null
+<?php
+/**
+ * Common library of functions used by Twitter Services.
+ *
+ * @package TwitterService
+ * @license http://www.gnu.org/licenses/old-licenses/gpl-2.0.html GNU Public License version 2
+ * @copyright Curverider Ltd 2008-2010
+ */
+
+/**
+ * Tests if the system admin has enabled Sign-On-With-Twitter
+ *
+ * @param void
+ * @return bool
+ */
+function twitterservice_allow_sign_on_with_twitter() {
+ if (!$consumer_key = get_plugin_setting('consumer_key', 'twitterservice')) {
+ return FALSE;
+ }
+
+ if (!$consumer_secret = get_plugin_setting('consumer_secret', 'twitterservice')) {
+ return FALSE;
+ }
+
+ return get_plugin_setting('sign_on', 'twitterservice') == 'yes';
+}
+
+function twitterservice_forward() {
+ global $CONFIG;
+
+ // sanity check
+ if (!twitterservice_allow_sign_on_with_twitter()) {
+ forward();
+ }
+
+ $callback = "{$CONFIG->site->url}pg/twitterservice/login";
+ $request_link = twitterservice_get_authorize_url($callback);
+
+ forward($request_link);
+}
+
+function twitterservice_login() {
+ global $CONFIG;
+
+ // sanity check
+ if (!twitterservice_allow_sign_on_with_twitter()) {
+ forward();
+ }
+
+ $token = twitterservice_get_access_token(get_input('oauth_verifier'));
+ if (!isset($token['oauth_token']) or !isset($token['oauth_token_secret'])) {
+ register_error(elgg_echo('twitterservice:login:error'));
+ forward();
+ }
+
+ // attempt to find user
+ $values = array(
+ 'plugin:settings:twitterservice:access_key' => $token['oauth_token'],
+ 'plugin:settings:twitterservice:access_secret' => $token['oauth_token_secret'],
+ );
+
+ if (!$users = get_entities_from_private_setting_multi($values, 'user', '', 0, '', 0)) {
+ // need Twitter account credentials
+ $consumer_key = get_plugin_setting('consumer_key', 'twitterservice');
+ $consumer_secret = get_plugin_setting('consumer_secret', 'twitterservice');
+ $api = new TwitterOAuth($consumer_key, $consumer_secret, $token['oauth_token'], $token['oauth_token_secret']);
+ $twitter = $api->get('account/verify_credentials');
+
+ // backward compatibility for stalled-development Twitter Login plugin
+ $user = FALSE;
+ if ($twitter_user = get_user_by_username($token['screen_name'])) {
+ if (($screen_name = $twitter_user->twitter_screen_name) && ($screen_name == $token['screen_name'])) {
+ // convert existing account
+ $user = $twitter_user;
+ $forward = '';
+ }
+ }
+
+ // create new user
+ if (!$user) {
+ // check new registration allowed
+ if (!$CONFIG->allow_registration) {
+ register_error(elgg_echo('registerdisabled'));
+ forward();
+ }
+
+ // trigger a hook for plugin authors to intercept
+ if (!trigger_plugin_hook('new_twitter_user', 'twitter_service', array('account' => $twitter), TRUE)) {
+ // halt execution
+ register_error(elgg_echo('twitterservice:login:error'));
+ forward();
+ }
+
+ // Elgg-ify Twitter credentials
+ $username = "{$twitter->screen_name}_twitter";
+ $display_name = $twitter->name;
+ $password = generate_random_cleartext_password();
+
+ // @hack Temporary, junk email account to allow user creation
+ $email = "$username@elgg.com";
+
+ try {
+ // create new account
+ if (!$user_id = register_user($username, $password, $display_name, $email)) {
+ register_error(elgg_echo('registerbad'));
+ forward();
+ }
+ } catch (RegistrationException $r) {
+ register_error($r->getMessage());
+ forward();
+ }
+
+ $user = new ElggUser($user_id);
+
+ // @hack Remove temporary email and forward to user settings page
+ // @todo Consider using a view to force valid email
+ system_message(elgg_echo('twitterservice:login:email'));
+ $user->email = '';
+ $user->save();
+
+ $forward = "pg/settings/user/{$user->username}";
+ }
+
+ // set twitter services tokens
+ set_plugin_usersetting('twitter_name', $token['screen_name'], $user->guid);
+ set_plugin_usersetting('access_key', $token['oauth_token'], $user->guid);
+ set_plugin_usersetting('access_secret', $token['oauth_token_secret'], $user->guid);
+
+ // pull in Twitter icon
+ twitterservice_update_user_avatar($user, $twitter->profile_image_url);
+
+ // login new user
+ if (login($user)) {
+ system_message(elgg_echo('twitterservice:login:success'));
+ } else {
+ system_message(elgg_echo('twitterservice:login:error'));
+ }
+
+ forward($forward);
+ } elseif (count($users) == 1) {
+ if (login($users[0])) {
+ system_message(elgg_echo('twitterservice:login:success'));
+ } else {
+ system_message(elgg_echo('twitterservice:login:error'));
+ }
+
+ forward();
+ }
+
+ // register login error
+ register_error(elgg_echo('twitterservice:login:error'));
+ forward();
+}
+
+function twitterservice_update_user_avatar($user, $file_location) {
+ $sizes = array(
+ 'topbar' => array(16, 16, TRUE),
+ 'tiny' => array(25, 25, TRUE),
+ 'small' => array(40, 40, TRUE),
+ 'medium' => array(100, 100, TRUE),
+ 'large' => array(200, 200, FALSE),
+ 'master' => array(550, 550, FALSE),
+ );
+
+ $filehandler = new ElggFile();
+ $filehandler->owner_guid = $user->getGUID();
+ foreach ($sizes as $size => $dimensions) {
+ $image = get_resized_image_from_existing_file(
+ $file_location,
+ $dimensions[0],
+ $dimensions[1],
+ $dimensions[2]
+ );
+
+ $filehandler->setFilename("profile/$user->username$size.jpg");
+ $filehandler->open('write');
+ $filehandler->write($image);
+ $filehandler->close();
+ }
+
+ return TRUE;
+}
+
+/**
+ * User-initiated Twitter authorization
+ *
+ * Callback action from Twitter registration. Registers a single Elgg user with
+ * the authorization tokens. Will revoke access from previous users when a
+ * conflict exists.
+ *
+ * Depends upon {@link twitterservice_get_authorize_url} being called previously
+ * to establish session request tokens.
+ */
+function twitterservice_authorize() {
+ $token = twitterservice_get_access_token();
+ if (!isset($token['oauth_token']) || !isset($token['oauth_token_secret'])) {
+ register_error(elgg_echo('twitterservice:authorize:error'));
+ forward('pg/settings/plugins');
+ }
+
+ // only one user per tokens
+ $values = array(
+ 'plugin:settings:twitterservice:access_key' => $token['oauth_token'],
+ 'plugin:settings:twitterservice:access_secret' => $token['oauth_token_secret'],
+ );
+
+ if ($users = get_entities_from_private_setting_multi($values, 'user', '', 0, '', 0)) {
+ foreach ($users as $user) {
+ // revoke access
+ clear_plugin_usersetting('twitter_name', $user->getGUID());
+ clear_plugin_usersetting('access_key', $user->getGUID());
+ clear_plugin_usersetting('access_secret', $user->getGUID());
+ }
+ }
+
+ // register user's access tokens
+ set_plugin_usersetting('twitter_name', $token['screen_name']);
+ set_plugin_usersetting('access_key', $token['oauth_token']);
+ set_plugin_usersetting('access_secret', $token['oauth_token_secret']);
+
+ system_message(elgg_echo('twitterservice:authorize:success'));
+ forward('pg/settings/plugins');
+}
+
+function twitterservice_revoke() {
+ // unregister user's access tokens
+ clear_plugin_usersetting('twitter_name');
+ clear_plugin_usersetting('access_key');
+ clear_plugin_usersetting('access_secret');
+
+ system_message(elgg_echo('twitterservice:revoke:success'));
+ forward('pg/settings/plugins');
+}
+
+function twitterservice_get_authorize_url($callback=NULL) {
+ global $SESSION;
+
+ $consumer_key = get_plugin_setting('consumer_key', 'twitterservice');
+ $consumer_secret = get_plugin_setting('consumer_secret', 'twitterservice');
+
+ // request tokens from Twitter
+ $twitter = new TwitterOAuth($consumer_key, $consumer_secret);
+ $token = $twitter->getRequestToken($callback);
+
+ // save token in session for use after authorization
+ $SESSION['twitterservice'] = array(
+ 'oauth_token' => $token['oauth_token'],
+ 'oauth_token_secret' => $token['oauth_token_secret'],
+ );
+
+ return $twitter->getAuthorizeURL($token['oauth_token']);
+}
+
+function twitterservice_get_access_token($oauth_verifier=FALSE) {
+ global $SESSION;
+
+ $consumer_key = get_plugin_setting('consumer_key', 'twitterservice');
+ $consumer_secret = get_plugin_setting('consumer_secret', 'twitterservice');
+
+ // retrieve stored tokens
+ $oauth_token = $SESSION['twitterservice']['oauth_token'];
+ $oauth_token_secret = $SESSION['twitterservice']['oauth_token_secret'];
+ $SESSION->offsetUnset('twitterservice');
+
+ // fetch an access token
+ $api = new TwitterOAuth($consumer_key, $consumer_secret, $oauth_token, $oauth_token_secret);
+ return $api->getAccessToken($oauth_verifier);
+}
--- /dev/null
+Copyright (c) 2009 Abraham Williams - http://abrah.am - abraham@poseurte.ch
+
+Permission is hereby granted, free of charge, to any person
+obtaining a copy of this software and associated documentation
+files (the "Software"), to deal in the Software without
+restriction, including without limitation the rights to use,
+copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the
+Software is furnished to do so, subject to the following
+conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+OTHER DEALINGS IN THE SOFTWARE.
--- /dev/null
+<?php
+// vim: foldmethod=marker
+
+class OAuthConsumer {
+ public $key;
+ public $secret;
+
+ function __construct($key, $secret, $callback_url=NULL) {
+ $this->key = $key;
+ $this->secret = $secret;
+ $this->callback_url = $callback_url;
+ }
+
+ function __toString() {
+ return "OAuthConsumer[key=$this->key,secret=$this->secret]";
+ }
+}
+
+class OAuthToken {
+ // access tokens and request tokens
+ public $key;
+ public $secret;
+
+ /**
+ * key = the token
+ * secret = the token secret
+ */
+ function __construct($key, $secret) {
+ $this->key = $key;
+ $this->secret = $secret;
+ }
+
+ /**
+ * generates the basic string serialization of a token that a server
+ * would respond to request_token and access_token calls with
+ */
+ function to_string() {
+ return "oauth_token=" .
+ OAuthUtil::urlencode_rfc3986($this->key) .
+ "&oauth_token_secret=" .
+ OAuthUtil::urlencode_rfc3986($this->secret);
+ }
+
+ function __toString() {
+ return $this->to_string();
+ }
+}
+
+class twitterOAuthSignatureMethod_HMAC_SHA1 extends OAuthSignatureMethod_HMAC_SHA1 {/*{{{*/
+ function get_name() {/*{{{*/
+ return "HMAC-SHA1";
+ }/*}}}*/
+
+ public function build_signature($request, $consumer, $token) {/*{{{*/
+ $base_string = $request->get_signature_base_string();
+ $request->base_string = $base_string;
+
+ $key_parts = array(
+ $consumer->secret,
+ ($token) ? $token->secret : ""
+ );
+
+ $key_parts = OAuthUtil::urlencode_rfc3986($key_parts);
+ $key = implode('&', $key_parts);
+
+ return base64_encode( hash_hmac('sha1', $base_string, $key, true));
+ }/*}}}*/
+
+ public function check_signature(&$request, $consumer, $token, $signature) {
+ $built = $this->build_signature($request, $consumer, $token);
+ return $built == $signature;
+ }
+}/*}}}*/
+
+class twitterOAuthRequest extends OAuthRequest {
+ private $parameters;
+ private $http_method;
+ private $http_url;
+ // for debug purposes
+ public $base_string;
+ public static $POST_INPUT = 'php://input';
+
+ function __construct($http_method, $http_url, $parameters=NULL) {
+ @$parameters or $parameters = array();
+ $parameters = array_merge( OAuthUtil::parse_parameters(parse_url($http_url, PHP_URL_QUERY)), $parameters);
+ $this->parameters = $parameters;
+ $this->http_method = $http_method;
+ $this->http_url = $http_url;
+ }
+
+
+ /**
+ * attempt to build up a request from what was passed to the server
+ */
+ public static function from_request($http_method=NULL, $http_url=NULL, $parameters=NULL) {
+ $scheme = (!isset($_SERVER['HTTPS']) || $_SERVER['HTTPS'] != "on")
+ ? 'http'
+ : 'https';
+ @$http_url or $http_url = $scheme .
+ '://' . $_SERVER['HTTP_HOST'] .
+ ':' .
+ $_SERVER['SERVER_PORT'] .
+ $_SERVER['REQUEST_URI'];
+ @$http_method or $http_method = $_SERVER['REQUEST_METHOD'];
+
+ // We weren't handed any parameters, so let's find the ones relevant to
+ // this request.
+ // If you run XML-RPC or similar you should use this to provide your own
+ // parsed parameter-list
+ if (!$parameters) {
+ // Find request headers
+ $request_headers = OAuthUtil::get_headers();
+
+ // Parse the query-string to find GET parameters
+ $parameters = OAuthUtil::parse_parameters($_SERVER['QUERY_STRING']);
+
+ // It's a POST request of the proper content-type, so parse POST
+ // parameters and add those overriding any duplicates from GET
+ if ($http_method == "POST"
+ && @strstr($request_headers["Content-Type"],
+ "application/x-www-form-urlencoded")
+ ) {
+ $post_data = OAuthUtil::parse_parameters(
+ file_get_contents(self::$POST_INPUT)
+ );
+ $parameters = array_merge($parameters, $post_data);
+ }
+
+ // We have a Authorization-header with OAuth data. Parse the header
+ // and add those overriding any duplicates from GET or POST
+ if (@substr($request_headers['Authorization'], 0, 6) == "OAuth ") {
+ $header_parameters = OAuthUtil::split_header(
+ $request_headers['Authorization']
+ );
+ $parameters = array_merge($parameters, $header_parameters);
+ }
+
+ }
+
+ return new twitterOAuthRequest($http_method, $http_url, $parameters);
+ }
+
+ /**
+ * pretty much a helper function to set up the request
+ */
+ public static function from_consumer_and_token($consumer, $token, $http_method, $http_url, $parameters=NULL) {
+ @$parameters or $parameters = array();
+ $defaults = array("oauth_version" => '1.0',
+ "oauth_nonce" => twitterOAuthRequest::generate_nonce(),
+ "oauth_timestamp" => twitterOAuthRequest::generate_timestamp(),
+ "oauth_consumer_key" => $consumer->key);
+ if ($token)
+ $defaults['oauth_token'] = $token->key;
+
+ $parameters = array_merge($defaults, $parameters);
+
+ return new twitterOAuthRequest($http_method, $http_url, $parameters);
+ }
+
+ public function set_parameter($name, $value, $allow_duplicates = true) {
+ if ($allow_duplicates && isset($this->parameters[$name])) {
+ // We have already added parameter(s) with this name, so add to the list
+ if (is_scalar($this->parameters[$name])) {
+ // This is the first duplicate, so transform scalar (string)
+ // into an array so we can add the duplicates
+ $this->parameters[$name] = array($this->parameters[$name]);
+ }
+
+ $this->parameters[$name][] = $value;
+ } else {
+ $this->parameters[$name] = $value;
+ }
+ }
+
+ public function get_parameter($name) {
+ return isset($this->parameters[$name]) ? $this->parameters[$name] : null;
+ }
+
+ public function get_parameters() {
+ return $this->parameters;
+ }
+
+ public function unset_parameter($name) {
+ unset($this->parameters[$name]);
+ }
+
+ /**
+ * The request parameters, sorted and concatenated into a normalized string.
+ * @return string
+ */
+ public function get_signable_parameters() {
+ // Grab all parameters
+ $params = $this->parameters;
+
+ // Remove oauth_signature if present
+ // Ref: Spec: 9.1.1 ("The oauth_signature parameter MUST be excluded.")
+ if (isset($params['oauth_signature'])) {
+ unset($params['oauth_signature']);
+ }
+
+ return OAuthUtil::build_http_query($params);
+ }
+
+ /**
+ * Returns the base string of this request
+ *
+ * The base string defined as the method, the url
+ * and the parameters (normalized), each urlencoded
+ * and the concated with &.
+ */
+ public function get_signature_base_string() {
+ $parts = array(
+ $this->get_normalized_http_method(),
+ $this->get_normalized_http_url(),
+ $this->get_signable_parameters()
+ );
+
+ $parts = OAuthUtil::urlencode_rfc3986($parts);
+
+ return implode('&', $parts);
+ }
+
+ /**
+ * just uppercases the http method
+ */
+ public function get_normalized_http_method() {
+ return strtoupper($this->http_method);
+ }
+
+ /**
+ * parses the url and rebuilds it to be
+ * scheme://host/path
+ */
+ public function get_normalized_http_url() {
+ $parts = parse_url($this->http_url);
+
+ $port = @$parts['port'];
+ $scheme = $parts['scheme'];
+ $host = $parts['host'];
+ $path = @$parts['path'];
+
+ $port or $port = ($scheme == 'https') ? '443' : '80';
+
+ if (($scheme == 'https' && $port != '443')
+ || ($scheme == 'http' && $port != '80')) {
+ $host = "$host:$port";
+ }
+ return "$scheme://$host$path";
+ }
+
+ /**
+ * builds a url usable for a GET request
+ */
+ public function to_url() {
+ $post_data = $this->to_postdata();
+ $out = $this->get_normalized_http_url();
+ if ($post_data) {
+ $out .= '?'.$post_data;
+ }
+ return $out;
+ }
+
+ /**
+ * builds the data one would send in a POST request
+ */
+ public function to_postdata() {
+ return OAuthUtil::build_http_query($this->parameters);
+ }
+
+ /**
+ * builds the Authorization: header
+ */
+ public function to_header($realm=null) {
+ $first = true;
+ if($realm) {
+ $out = 'Authorization: OAuth realm="' . OAuthUtil::urlencode_rfc3986($realm) . '"';
+ $first = false;
+ } else
+ $out = 'Authorization: OAuth';
+
+ $total = array();
+ foreach ($this->parameters as $k => $v) {
+ if (substr($k, 0, 5) != "oauth") continue;
+ if (is_array($v)) {
+ throw new OAuthException('Arrays not supported in headers');
+ }
+ $out .= ($first) ? ' ' : ',';
+ $out .= OAuthUtil::urlencode_rfc3986($k) .
+ '="' .
+ OAuthUtil::urlencode_rfc3986($v) .
+ '"';
+ $first = false;
+ }
+ return $out;
+ }
+
+ public function __toString() {
+ return $this->to_url();
+ }
+
+
+ public function sign_request($signature_method, $consumer, $token) {
+ $this->set_parameter(
+ "oauth_signature_method",
+ $signature_method->get_name(),
+ false
+ );
+ $signature = $this->build_signature($signature_method, $consumer, $token);
+ $this->set_parameter("oauth_signature", $signature, false);
+ }
+
+ public function build_signature($signature_method, $consumer, $token) {
+ $signature = $signature_method->build_signature($this, $consumer, $token);
+ return $signature;
+ }
+
+ /**
+ * util function: current timestamp
+ */
+ private static function generate_timestamp() {
+ return time();
+ }
+
+ /**
+ * util function: current nonce
+ */
+ private static function generate_nonce() {
+ $mt = microtime();
+ $rand = mt_rand();
+
+ return md5($mt . $rand); // md5s look nicer than numbers
+ }
+}
+
+class OAuthDataStore {
+ function lookup_consumer($consumer_key) {
+ // implement me
+ }
+
+ function lookup_token($consumer, $token_type, $token) {
+ // implement me
+ }
+
+ function lookup_nonce($consumer, $token, $nonce, $timestamp) {
+ // implement me
+ }
+
+ function new_request_token($consumer, $callback = null) {
+ // return a new token attached to this consumer
+ }
+
+ function new_access_token($token, $consumer, $verifier = null) {
+ // return a new access token attached to this consumer
+ // for the user associated with this token if the request token
+ // is authorized
+ // should also invalidate the request token
+ }
+
+}
+
+class OAuthUtil {
+ public static function urlencode_rfc3986($input) {
+ if (is_array($input)) {
+ return array_map(array('OAuthUtil', 'urlencode_rfc3986'), $input);
+ } else if (is_scalar($input)) {
+ return str_replace(
+ '+',
+ ' ',
+ str_replace('%7E', '~', rawurlencode($input))
+ );
+ } else {
+ return '';
+ }
+}
+
+
+ // This decode function isn't taking into consideration the above
+ // modifications to the encoding process. However, this method doesn't
+ // seem to be used anywhere so leaving it as is.
+ public static function urldecode_rfc3986($string) {
+ return urldecode($string);
+ }
+
+ // Utility function for turning the Authorization: header into
+ // parameters, has to do some unescaping
+ // Can filter out any non-oauth parameters if needed (default behaviour)
+ public static function split_header($header, $only_allow_oauth_parameters = true) {
+ $pattern = '/(([-_a-z]*)=("([^"]*)"|([^,]*)),?)/';
+ $offset = 0;
+ $params = array();
+ while (preg_match($pattern, $header, $matches, PREG_OFFSET_CAPTURE, $offset) > 0) {
+ $match = $matches[0];
+ $header_name = $matches[2][0];
+ $header_content = (isset($matches[5])) ? $matches[5][0] : $matches[4][0];
+ if (preg_match('/^oauth_/', $header_name) || !$only_allow_oauth_parameters) {
+ $params[$header_name] = OAuthUtil::urldecode_rfc3986($header_content);
+ }
+ $offset = $match[1] + strlen($match[0]);
+ }
+
+ if (isset($params['realm'])) {
+ unset($params['realm']);
+ }
+
+ return $params;
+ }
+
+ // helper to try to sort out headers for people who aren't running apache
+ public static function get_headers() {
+ if (function_exists('apache_request_headers')) {
+ // we need this to get the actual Authorization: header
+ // because apache tends to tell us it doesn't exist
+ $headers = apache_request_headers();
+
+ // sanitize the output of apache_request_headers because
+ // we always want the keys to be Cased-Like-This and arh()
+ // returns the headers in the same case as they are in the
+ // request
+ $out = array();
+ foreach( $headers AS $key => $value ) {
+ $key = str_replace(
+ " ",
+ "-",
+ ucwords(strtolower(str_replace("-", " ", $key)))
+ );
+ $out[$key] = $value;
+ }
+ } else {
+ // otherwise we don't have apache and are just going to have to hope
+ // that $_SERVER actually contains what we need
+ $out = array();
+ if( isset($_SERVER['CONTENT_TYPE']) )
+ $out['Content-Type'] = $_SERVER['CONTENT_TYPE'];
+ if( isset($_ENV['CONTENT_TYPE']) )
+ $out['Content-Type'] = $_ENV['CONTENT_TYPE'];
+
+ foreach ($_SERVER as $key => $value) {
+ if (substr($key, 0, 5) == "HTTP_") {
+ // this is chaos, basically it is just there to capitalize the first
+ // letter of every word that is not an initial HTTP and strip HTTP
+ // code from przemek
+ $key = str_replace(
+ " ",
+ "-",
+ ucwords(strtolower(str_replace("_", " ", substr($key, 5))))
+ );
+ $out[$key] = $value;
+ }
+ }
+ }
+ return $out;
+ }
+
+ // This function takes a input like a=b&a=c&d=e and returns the parsed
+ // parameters like this
+ // array('a' => array('b','c'), 'd' => 'e')
+ public static function parse_parameters( $input ) {
+ if (!isset($input) || !$input) return array();
+
+ $pairs = explode('&', $input);
+
+ $parsed_parameters = array();
+ foreach ($pairs as $pair) {
+ $split = explode('=', $pair, 2);
+ $parameter = OAuthUtil::urldecode_rfc3986($split[0]);
+ $value = isset($split[1]) ? OAuthUtil::urldecode_rfc3986($split[1]) : '';
+
+ if (isset($parsed_parameters[$parameter])) {
+ // We have already recieved parameter(s) with this name, so add to the list
+ // of parameters with this name
+
+ if (is_scalar($parsed_parameters[$parameter])) {
+ // This is the first duplicate, so transform scalar (string) into an array
+ // so we can add the duplicates
+ $parsed_parameters[$parameter] = array($parsed_parameters[$parameter]);
+ }
+
+ $parsed_parameters[$parameter][] = $value;
+ } else {
+ $parsed_parameters[$parameter] = $value;
+ }
+ }
+ return $parsed_parameters;
+ }
+
+ public static function build_http_query($params) {
+ if (!$params) return '';
+
+ // Urlencode both keys and values
+ $keys = OAuthUtil::urlencode_rfc3986(array_keys($params));
+ $values = OAuthUtil::urlencode_rfc3986(array_values($params));
+ $params = array_combine($keys, $values);
+
+ // Parameters are sorted by name, using lexicographical byte value ordering.
+ // Ref: Spec: 9.1.1 (1)
+ uksort($params, 'strcmp');
+
+ $pairs = array();
+ foreach ($params as $parameter => $value) {
+ if (is_array($value)) {
+ // If two or more parameters share the same name, they are sorted by their value
+ // Ref: Spec: 9.1.1 (1)
+ natsort($value);
+ foreach ($value as $duplicate_value) {
+ $pairs[] = $parameter . '=' . $duplicate_value;
+ }
+ } else {
+ $pairs[] = $parameter . '=' . $value;
+ }
+ }
+ // For each parameter, the name is separated from the corresponding value by an '=' character (ASCII code 61)
+ // Each name-value pair is separated by an '&' character (ASCII code 38)
+ return implode('&', $pairs);
+ }
+}
+
+?>
--- /dev/null
+Abraham Williams | abraham@poseurte.ch | http://abrah.am | @abraham
+
+The first PHP library for working with Twitter's OAuth API.
+
+Documentation: http://wiki.github.com/abraham/twitteroauth/documentation
+Source: http://github.com/abraham/twitteroauth
+Twitter: http://apiwiki.twitter.com
--- /dev/null
+<?php
+
+/*
+ * Abraham Williams (abraham@abrah.am) http://abrah.am
+ *
+ * The first PHP Library to support OAuth for Twitter's REST API.
+ */
+
+/* Load OAuth lib. You can find it at http://oauth.net */
+require_once('OAuth.php');
+
+/**
+ * Twitter OAuth class
+ */
+class TwitterOAuth {
+ /* Contains the last HTTP status code returned. */
+ public $http_code;
+ /* Contains the last API call. */
+ public $url;
+ /* Set up the API root URL. */
+ public $host = "https://api.twitter.com/1/";
+ /* Set timeout default. */
+ public $timeout = 30;
+ /* Set connect timeout. */
+ public $connecttimeout = 30;
+ /* Verify SSL Cert. */
+ public $ssl_verifypeer = FALSE;
+ /* Respons format. */
+ public $format = 'json';
+ /* Decode returned json data. */
+ public $decode_json = TRUE;
+ /* Contains the last HTTP headers returned. */
+ public $http_info;
+ /* Set the useragnet. */
+ public $useragent = 'TwitterOAuth v0.2.0-beta2';
+ /* Immediately retry the API call if the response was not successful. */
+ //public $retry = TRUE;
+
+
+
+
+ /**
+ * Set API URLS
+ */
+ function accessTokenURL() { return 'https://api.twitter.com/oauth/access_token'; }
+ function authenticateURL() { return 'https://twitter.com/oauth/authenticate'; }
+ function authorizeURL() { return 'https://twitter.com/oauth/authorize'; }
+ function requestTokenURL() { return 'https://api.twitter.com/oauth/request_token'; }
+
+ /**
+ * Debug helpers
+ */
+ function lastStatusCode() { return $this->http_status; }
+ function lastAPICall() { return $this->last_api_call; }
+
+ /**
+ * construct TwitterOAuth object
+ */
+ function __construct($consumer_key, $consumer_secret, $oauth_token = NULL, $oauth_token_secret = NULL) {
+ $this->sha1_method = new twitterOAuthSignatureMethod_HMAC_SHA1();
+ $this->consumer = new OAuthConsumer($consumer_key, $consumer_secret);
+ if (!empty($oauth_token) && !empty($oauth_token_secret)) {
+ $this->token = new OAuthConsumer($oauth_token, $oauth_token_secret);
+ } else {
+ $this->token = NULL;
+ }
+ }
+
+
+ /**
+ * Get a request_token from Twitter
+ *
+ * @returns a key/value array containing oauth_token and oauth_token_secret
+ */
+ function getRequestToken($oauth_callback = NULL) {
+ $parameters = array();
+ if (!empty($oauth_callback)) {
+ $parameters['oauth_callback'] = $oauth_callback;
+ }
+ $request = $this->oAuthRequest($this->requestTokenURL(), 'GET', $parameters);
+ $token = OAuthUtil::parse_parameters($request);
+ $this->token = new OAuthConsumer($token['oauth_token'], $token['oauth_token_secret']);
+ return $token;
+ }
+
+ /**
+ * Get the authorize URL
+ *
+ * @returns a string
+ */
+ function getAuthorizeURL($token, $sign_in_with_twitter = TRUE) {
+ if (is_array($token)) {
+ $token = $token['oauth_token'];
+ }
+ if (empty($sign_in_with_twitter)) {
+ return $this->authorizeURL() . "?oauth_token={$token}";
+ } else {
+ return $this->authenticateURL() . "?oauth_token={$token}";
+ }
+ }
+
+ /**
+ * Exchange request token and secret for an access token and
+ * secret, to sign API calls.
+ *
+ * @returns array("oauth_token" => "the-access-token",
+ * "oauth_token_secret" => "the-access-secret",
+ * "user_id" => "9436992",
+ * "screen_name" => "abraham")
+ */
+ function getAccessToken($oauth_verifier = FALSE) {
+ $parameters = array();
+ if (!empty($oauth_verifier)) {
+ $parameters['oauth_verifier'] = $oauth_verifier;
+ }
+ $request = $this->oAuthRequest($this->accessTokenURL(), 'GET', $parameters);
+ $token = OAuthUtil::parse_parameters($request);
+ $this->token = new OAuthConsumer($token['oauth_token'], $token['oauth_token_secret']);
+ return $token;
+ }
+
+ /**
+ * One time exchange of username and password for access token and secret.
+ *
+ * @returns array("oauth_token" => "the-access-token",
+ * "oauth_token_secret" => "the-access-secret",
+ * "user_id" => "9436992",
+ * "screen_name" => "abraham",
+ * "x_auth_expires" => "0")
+ */
+ function getXAuthToken($username, $password) {
+ $parameters = array();
+ $parameters['x_auth_username'] = $username;
+ $parameters['x_auth_password'] = $password;
+ $parameters['x_auth_mode'] = 'client_auth';
+ $request = $this->oAuthRequest($this->accessTokenURL(), 'POST', $parameters);
+ $token = OAuthUtil::parse_parameters($request);
+ $this->token = new OAuthConsumer($token['oauth_token'], $token['oauth_token_secret']);
+ return $token;
+ }
+
+ /**
+ * GET wrapper for oAuthRequest.
+ */
+ function get($url, $parameters = array()) {
+ $response = $this->oAuthRequest($url, 'GET', $parameters);
+ if ($this->format === 'json' && $this->decode_json) {
+ return json_decode($response);
+ }
+ return $response;
+ }
+
+ /**
+ * POST wrapper for oAuthRequest.
+ */
+ function post($url, $parameters = array()) {
+ $response = $this->oAuthRequest($url, 'POST', $parameters);
+ if ($this->format === 'json' && $this->decode_json) {
+ return json_decode($response);
+ }
+ return $response;
+ }
+
+ /**
+ * DELETE wrapper for oAuthReqeust.
+ */
+ function delete($url, $parameters = array()) {
+ $response = $this->oAuthRequest($url, 'DELETE', $parameters);
+ if ($this->format === 'json' && $this->decode_json) {
+ return json_decode($response);
+ }
+ return $response;
+ }
+
+ /**
+ * Format and sign an OAuth / API request
+ */
+ function oAuthRequest($url, $method, $parameters) {
+ if (strrpos($url, 'https://') !== 0 && strrpos($url, 'http://') !== 0) {
+ $url = "{$this->host}{$url}.{$this->format}";
+ }
+ $request = twitterOAuthRequest::from_consumer_and_token($this->consumer, $this->token, $method, $url, $parameters);
+ $request->sign_request($this->sha1_method, $this->consumer, $this->token);
+ switch ($method) {
+ case 'GET':
+ return $this->http($request->to_url(), 'GET');
+ default:
+ return $this->http($request->get_normalized_http_url(), $method, $request->to_postdata());
+ }
+ }
+
+ /**
+ * Make an HTTP request
+ *
+ * @return API results
+ */
+ function http($url, $method, $postfields = NULL) {
+ $this->http_info = array();
+ $ci = curl_init();
+ /* Curl settings */
+ curl_setopt($ci, CURLOPT_USERAGENT, $this->useragent);
+ curl_setopt($ci, CURLOPT_CONNECTTIMEOUT, $this->connecttimeout);
+ curl_setopt($ci, CURLOPT_TIMEOUT, $this->timeout);
+ curl_setopt($ci, CURLOPT_RETURNTRANSFER, TRUE);
+ curl_setopt($ci, CURLOPT_HTTPHEADER, array('Expect:'));
+ curl_setopt($ci, CURLOPT_SSL_VERIFYPEER, $this->ssl_verifypeer);
+ curl_setopt($ci, CURLOPT_HEADERFUNCTION, array($this, 'getHeader'));
+ curl_setopt($ci, CURLOPT_HEADER, FALSE);
+
+ switch ($method) {
+ case 'POST':
+ curl_setopt($ci, CURLOPT_POST, TRUE);
+ if (!empty($postfields)) {
+ curl_setopt($ci, CURLOPT_POSTFIELDS, $postfields);
+ }
+ break;
+ case 'DELETE':
+ curl_setopt($ci, CURLOPT_CUSTOMREQUEST, 'DELETE');
+ if (!empty($postfields)) {
+ $url = "{$url}?{$postfields}";
+ }
+ }
+
+ curl_setopt($ci, CURLOPT_URL, $url);
+ $response = curl_exec($ci);
+ $this->http_code = curl_getinfo($ci, CURLINFO_HTTP_CODE);
+ $this->http_info = array_merge($this->http_info, curl_getinfo($ci));
+ $this->url = $url;
+ curl_close ($ci);
+ return $response;
+ }
+
+ /**
+ * Get the header info to store.
+ */
+ function getHeader($ch, $header) {
+ $i = strpos($header, ':');
+ if (!empty($i)) {
+ $key = str_replace('-', '_', strtolower(substr($header, 0, $i)));
+ $value = trim(substr($header, $i + 2));
+ $this->http_header[$key] = $value;
+ }
+ return strlen($header);
+ }
+}
--- /dev/null
+<?php
+/**
+ *
+ */
+$insert_view = elgg_view('twittersettings/extend');
+
+$consumer_key_string = elgg_echo('twitterservice:consumer_key');
+$consumer_key_view = elgg_view('input/text', array(
+ 'internalname' => 'params[consumer_key]',
+ 'value' => $vars['entity']->consumer_key,
+ 'class' => 'text_input',
+));
+
+$consumer_secret_string = elgg_echo('twitterservice:consumer_secret');
+$consumer_secret_view = elgg_view('input/text', array(
+ 'internalname' => 'params[consumer_secret]',
+ 'value' => $vars['entity']->consumer_secret,
+ 'class' => 'text_input',
+));
+
+$sign_on_with_twitter_string = elgg_echo('twitterservice:login');
+$sign_on_with_twitter_view = elgg_view('input/pulldown', array(
+ 'internalname' => 'params[sign_on]',
+ 'options_values' => array(
+ 'yes' => elgg_echo('option:yes'),
+ 'no' => elgg_echo('option:no'),
+ ),
+ 'value' => $vars['entity']->sign_on ? $vars['entity']->sign_on : 'no',
+));
+
+$settings = <<<__HTML
+<div id="twitterservice_site_settings">
+ <div>$insert_view</div>
+ <div>$consumer_key_string $consumer_key_view</div>
+ <div>$consumer_secret_string $consumer_secret_view</div>
+ <div>$sign_on_with_twitter_string $sign_on_with_twitter_view</div>
+</div>
+__HTML;
+
+echo $settings;
--- /dev/null
+<?php
+/**
+ * Elgg TwitterService CSS
+ */
+?>
+
+#twitterservice_site_settings .text_input {
+ width: 350px;
+}
+#login_with_twitter {
+ padding: 10px 0 0 0;
+}
--- /dev/null
+<?php
+/**
+ *
+ */
+
+$url = "{$vars['url']}pg/twitterservice/forward";
+
+$login = <<<__HTML
+<div id="login_with_twitter">
+ <a href="$url">
+ <img src="{$vars['url']}mod/twitterservice/graphics/sign_in_with_twitter.gif" alt="Twitter" />
+ </a>
+</div>
+__HTML;
+
+echo $login;
--- /dev/null
+<?php
+/**
+ * Adds required HTML head tags for Twitter Services.
+ *
+ * @package TwitterService
+ * @license http://www.gnu.org/licenses/old-licenses/gpl-2.0.html GNU Public License version 2
+ * @copyright Curverider Ltd 2010
+ */
+
+if ($api_key = get_plugin_setting('consumer_key', 'twitterservice')) {
+ $tags = <<<__HTML
+<script src="http://platform.twitter.com/anywhere.js?id=$api_key&v=1" type="text/javascript"></script>
+<script type="text/javascript">
+ twttr.anywhere(function (T) {
+ T(".twitter_anywhere").hovercards();
+ });
+</script>
+__HTML;
+
+ echo $tags;
+}
--- /dev/null
+<?php
+/**
+ *
+ */
+
+$user_id = get_loggedin_userid();
+$twitter_name = get_plugin_usersetting('twitter_name', $user_id, 'twitterservice');
+$access_key = get_plugin_usersetting('access_key', $user_id, 'twitterservice');
+$access_secret = get_plugin_usersetting('access_secret', $user_id, 'twitterservice');
+
+echo '<p>' . elgg_echo('twitterservice:usersettings:description') . '</p>';
+
+if (!$access_key || !$access_secret) {
+ // send user off to validate account
+ $request_link = twitterservice_get_authorize_url();
+ echo '<p>' . sprintf(elgg_echo('twitterservice:usersettings:request'), $request_link) . '</p>';
+} else {
+ $url = "{$CONFIG->site->url}pg/twitterservice/revoke";
+ echo '<p class="twitter_anywhere">' . sprintf(elgg_echo('twitterservice:usersettings:authorized'), $twitter_name) . '</p>';
+ echo '<p>' . sprintf(elgg_echo('twitterservice:usersettings:revoke'), $url) . '</p>';
+}
projects / lorea / elgg.git / commitdiff
