--- /dev/null
+<?php
+
+namespace CodebirdSN;
+
+/**
+ * A Twitter library in PHP.
+ *
+ * @package codebird
+ * @version 2.4.1
+ * @author J.M. <me@mynetx.net>
+ * @copyright 2010-2013 J.M. <me@mynetx.net>
+ *
+ * Modified for statusnet by Michael Vogel <heluecht@pirati.ca>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/**
+ * Define constants
+ */
+$constants = explode(' ', 'OBJECT ARRAY JSON');
+foreach ($constants as $i => $id) {
+ $id = 'CODEBIRD_RETURNFORMAT_' . $id;
+ defined($id) or define($id, $i);
+}
+$constants = array(
+ 'CURLE_SSL_CERTPROBLEM' => 58,
+ 'CURLE_SSL_CACERT' => 60,
+ 'CURLE_SSL_CACERT_BADFILE' => 77,
+ 'CURLE_SSL_CRL_BADFILE' => 82,
+ 'CURLE_SSL_ISSUER_ERROR' => 83
+);
+foreach ($constants as $id => $i) {
+ defined($id) or define($id, $i);
+}
+unset($constants);
+unset($i);
+unset($id);
+
+/**
+ * A Twitter library in PHP.
+ *
+ * @package codebird
+ * @subpackage codebird-php
+ */
+class CodebirdSN
+{
+ /**
+ * The current singleton instance
+ */
+ private static $_instance = null;
+
+ /**
+ * The OAuth consumer key of your registered app
+ */
+ protected static $_oauth_consumer_key = null;
+
+ /**
+ * The corresponding consumer secret
+ */
+ protected static $_oauth_consumer_secret = null;
+
+ /**
+ * The app-only bearer token. Used to authorize app-only requests
+ */
+ protected static $_oauth_bearer_token = null;
+
+ /**
+ * The API endpoint to use
+ */
+ protected static $_endpoint = 'https://api.twitter.com/1.1/';
+
+ /**
+ * The API endpoint to use for OAuth requests
+ */
+ protected static $_endpoint_oauth = 'https://api.twitter.com/';
+
+ /**
+ * The Request or access token. Used to sign requests
+ */
+ protected $_oauth_token = null;
+
+ /**
+ * The corresponding request or access token secret
+ */
+ protected $_oauth_token_secret = null;
+
+ /**
+ * The format of data to return from API calls
+ */
+ protected $_return_format = CODEBIRD_RETURNFORMAT_OBJECT;
+
+ /**
+ * The file formats that Twitter accepts as image uploads
+ */
+ protected $_supported_media_files = array(IMAGETYPE_GIF, IMAGETYPE_JPEG, IMAGETYPE_PNG);
+
+ /**
+ * The current Codebird version
+ */
+ protected $_version = '2.4.1';
+
+ /**
+ * Returns singleton class instance
+ * Always use this method unless you're working with multiple authenticated users at once
+ *
+ * @return Codebird The instance
+ */
+ public static function getInstance()
+ {
+ if (self::$_instance == null) {
+ self::$_instance = new self;
+ }
+ return self::$_instance;
+ }
+
+ /**
+ * Sets the API endpoint
+ *
+ * @param string $api API endpoint
+ *
+ * @return void
+ */
+ public static function setAPIEndpoint($api)
+ {
+ self::$_endpoint_oauth = $api;
+ self::$_endpoint = $api;
+ }
+
+ /**
+ * Sets the OAuth consumer key and secret (App key)
+ *
+ * @param string $key OAuth consumer key
+ * @param string $secret OAuth consumer secret
+ *
+ * @return void
+ */
+ public static function setConsumerKey($key, $secret)
+ {
+ self::$_oauth_consumer_key = $key;
+ self::$_oauth_consumer_secret = $secret;
+ }
+
+ /**
+ * Sets the OAuth2 app-only auth bearer token
+ *
+ * @param string $token OAuth2 bearer token
+ *
+ * @return void
+ */
+ public static function setBearerToken($token)
+ {
+ self::$_oauth_bearer_token = $token;
+ }
+
+ /**
+ * Gets the current Codebird version
+ *
+ * @return string The version number
+ */
+ public function getVersion()
+ {
+ return $this->_version;
+ }
+
+ /**
+ * Sets the OAuth request or access token and secret (User key)
+ *
+ * @param string $token OAuth request or access token
+ * @param string $secret OAuth request or access token secret
+ *
+ * @return void
+ */
+ public function setToken($token, $secret)
+ {
+ $this->_oauth_token = $token;
+ $this->_oauth_token_secret = $secret;
+ }
+
+ /**
+ * Sets the format for API replies
+ *
+ * @param int $return_format One of these:
+ * CODEBIRD_RETURNFORMAT_OBJECT (default)
+ * CODEBIRD_RETURNFORMAT_ARRAY
+ *
+ * @return void
+ */
+ public function setReturnFormat($return_format)
+ {
+ $this->_return_format = $return_format;
+ }
+
+ /**
+ * Main API handler working on any requests you issue
+ *
+ * @param string $fn The member function you called
+ * @param array $params The parameters you sent along
+ *
+ * @return mixed The API reply encoded in the set return_format
+ */
+
+ public function __call($fn, $params)
+ {
+ // parse parameters
+ $apiparams = array();
+ if (count($params) > 0) {
+ if (is_array($params[0])) {
+ $apiparams = $params[0];
+ } else {
+ parse_str($params[0], $apiparams);
+ // remove auto-added slashes if on magic quotes steroids
+ if (get_magic_quotes_gpc()) {
+ foreach($apiparams as $key => $value) {
+ if (is_array($value)) {
+ $apiparams[$key] = array_map('stripslashes', $value);
+ } else {
+ $apiparams[$key] = stripslashes($value);
+ }
+ }
+ }
+ }
+ }
+
+ // stringify null and boolean parameters
+ foreach ($apiparams as $key => $value) {
+ if (! is_scalar($value)) {
+ continue;
+ }
+ if (is_null($value)) {
+ $apiparams[$key] = 'null';
+ } elseif (is_bool($value)) {
+ $apiparams[$key] = $value ? 'true' : 'false';
+ }
+ }
+
+ $app_only_auth = false;
+ if (count($params) > 1) {
+ $app_only_auth = !! $params[1];
+ }
+
+ // map function name to API method
+ $method = '';
+
+ // replace _ by /
+ $path = explode('_', $fn);
+ for ($i = 0; $i < count($path); $i++) {
+ if ($i > 0) {
+ $method .= '/';
+ }
+ $method .= $path[$i];
+ }
+ // undo replacement for URL parameters
+ $url_parameters_with_underscore = array('screen_name');
+ foreach ($url_parameters_with_underscore as $param) {
+ $param = strtoupper($param);
+ $replacement_was = str_replace('_', '/', $param);
+ $method = str_replace($replacement_was, $param, $method);
+ }
+
+ // replace AA by URL parameters
+ $method_template = $method;
+ $match = array();
+ if (preg_match('/[A-Z_]{2,}/', $method, $match)) {
+ foreach ($match as $param) {
+ $param_l = strtolower($param);
+ $method_template = str_replace($param, ':' . $param_l, $method_template);
+ if (!isset($apiparams[$param_l])) {
+ for ($i = 0; $i < 26; $i++) {
+ $method_template = str_replace(chr(65 + $i), '_' . chr(97 + $i), $method_template);
+ }
+ throw new \Exception(
+ 'To call the templated method "' . $method_template
+ . '", specify the parameter value for "' . $param_l . '".'
+ );
+ }
+ $method = str_replace($param, $apiparams[$param_l], $method);
+ unset($apiparams[$param_l]);
+ }
+ }
+
+ // replace A-Z by _a-z
+ for ($i = 0; $i < 26; $i++) {
+ $method = str_replace(chr(65 + $i), '_' . chr(97 + $i), $method);
+ $method_template = str_replace(chr(65 + $i), '_' . chr(97 + $i), $method_template);
+ }
+
+ $httpmethod = $this->_detectMethod($method_template, $apiparams);
+ $multipart = $this->_detectMultipart($method_template);
+ return $this->_callApi(
+ $httpmethod,
+ $method,
+ $method_template,
+ $apiparams,
+ $multipart,
+ $app_only_auth
+ );
+ }
+
+ /**
+ * Uncommon API methods
+ */
+
+ /**
+ * Gets the OAuth authenticate URL for the current request token
+ *
+ * @return string The OAuth authenticate URL
+ */
+ public function oauth_authenticate($force_login = NULL, $screen_name = NULL)
+ {
+ if ($this->_oauth_token == null) {
+ throw new \Exception('To get the authenticate URL, the OAuth token must be set.');
+ }
+ $url = self::$_endpoint_oauth . 'oauth/authenticate?oauth_token=' . $this->_url($this->_oauth_token);
+ if ($force_login) {
+ $url .= "&force_login=1";
+ }
+ if ($screen_name) {
+ $url .= "&screen_name=" . $screen_name;
+ }
+ return $url;
+ }
+
+ /**
+ * Gets the OAuth authorize URL for the current request token
+ *
+ * @return string The OAuth authorize URL
+ */
+ public function oauth_authorize($force_login = NULL, $screen_name = NULL)
+ {
+ if ($this->_oauth_token == null) {
+ throw new \Exception('To get the authorize URL, the OAuth token must be set.');
+ }
+ $url = self::$_endpoint_oauth . 'oauth/authorize?oauth_token=' . $this->_url($this->_oauth_token);
+ if ($force_login) {
+ $url .= "&force_login=1";
+ }
+ if ($screen_name) {
+ $url .= "&screen_name=" . $screen_name;
+ }
+ return $url;
+ }
+
+ /**
+ * Gets the OAuth bearer token
+ *
+ * @return string The OAuth bearer token
+ */
+
+ public function oauth2_token()
+ {
+ if (! function_exists('curl_init')) {
+ throw new \Exception('To make API requests, the PHP curl extension must be available.');
+ }
+ if (self::$_oauth_consumer_key == null) {
+ throw new \Exception('To obtain a bearer token, the consumer key must be set.');
+ }
+ $ch = false;
+ $post_fields = array(
+ 'grant_type' => 'client_credentials'
+ );
+ $url = self::$_endpoint_oauth . 'oauth2/token';
+ $ch = curl_init($url);
+ curl_setopt($ch, CURLOPT_POST, 1);
+ curl_setopt($ch, CURLOPT_POSTFIELDS, $post_fields);
+ curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
+ curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 0);
+ curl_setopt($ch, CURLOPT_HEADER, 1);
+ curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 1);
+ curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 2);
+ //curl_setopt($ch, CURLOPT_CAINFO, __DIR__ . '/cacert.pem');
+
+ curl_setopt($ch, CURLOPT_USERPWD, self::$_oauth_consumer_key . ':' . self::$_oauth_consumer_secret);
+ curl_setopt($ch, CURLOPT_HTTPHEADER, array(
+ 'Expect:'
+ ));
+ $reply = curl_exec($ch);
+
+ // certificate validation results
+ //$validation_result = curl_errno($ch);
+ //if (in_array(
+ // $validation_result,
+ // array(
+ // CURLE_SSL_CERTPROBLEM,
+ // CURLE_SSL_CACERT,
+ // CURLE_SSL_CACERT_BADFILE,
+ // CURLE_SSL_CRL_BADFILE,
+ // CURLE_SSL_ISSUER_ERROR
+ // )
+ // )
+ //) {
+ // throw new \Exception('Error ' . $validation_result . ' while validating the Twitter API certificate.');
+ //}
+
+ $httpstatus = curl_getinfo($ch, CURLINFO_HTTP_CODE);
+ $reply = $this->_parseApiReply('oauth2/token', $reply);
+ switch ($this->_return_format) {
+ case CODEBIRD_RETURNFORMAT_ARRAY:
+ $reply['httpstatus'] = $httpstatus;
+ if ($httpstatus == 200) {
+ self::setBearerToken($reply['access_token']);
+ }
+ break;
+ case CODEBIRD_RETURNFORMAT_JSON:
+ if ($httpstatus == 200) {
+ $parsed = json_decode($reply);
+ self::setBearerToken($parsed->access_token);
+ }
+ break;
+ case CODEBIRD_RETURNFORMAT_OBJECT:
+ $reply->httpstatus = $httpstatus;
+ if ($httpstatus == 200) {
+ self::setBearerToken($reply->access_token);
+ }
+ break;
+ }
+ return $reply;
+ }
+
+ /**
+ * Signing helpers
+ */
+
+ /**
+ * URL-encodes the given data
+ *
+ * @param mixed $data
+ *
+ * @return mixed The encoded data
+ */
+ private function _url($data)
+ {
+ if (is_array($data)) {
+ return array_map(array(
+ $this,
+ '_url'
+ ), $data);
+ } elseif (is_scalar($data)) {
+ return str_replace(array(
+ '+',
+ '!',
+ '*',
+ "'",
+ '(',
+ ')'
+ ), array(
+ ' ',
+ '%21',
+ '%2A',
+ '%27',
+ '%28',
+ '%29'
+ ), rawurlencode($data));
+ } else {
+ return '';
+ }
+ }
+
+ /**
+ * Gets the base64-encoded SHA1 hash for the given data
+ *
+ * @param string $data The data to calculate the hash from
+ *
+ * @return string The hash
+ */
+ private function _sha1($data)
+ {
+ if (self::$_oauth_consumer_secret == null) {
+ throw new \Exception('To generate a hash, the consumer secret must be set.');
+ }
+ if (!function_exists('hash_hmac')) {
+ throw new \Exception('To generate a hash, the PHP hash extension must be available.');
+ }
+ return base64_encode(hash_hmac('sha1', $data, self::$_oauth_consumer_secret . '&'
+ . ($this->_oauth_token_secret != null ? $this->_oauth_token_secret : ''), true));
+ }
+
+ /**
+ * Generates a (hopefully) unique random string
+ *
+ * @param int optional $length The length of the string to generate
+ *
+ * @return string The random string
+ */
+ protected function _nonce($length = 8)
+ {
+ if ($length < 1) {
+ throw new \Exception('Invalid nonce length.');
+ }
+ return substr(md5(microtime(true)), 0, $length);
+ }
+
+ /**
+ * Generates an OAuth signature
+ *
+ * @param string $httpmethod Usually either 'GET' or 'POST' or 'DELETE'
+ * @param string $method The API method to call
+ * @param array optional $params The API call parameters, associative
+ *
+ * @return string Authorization HTTP header
+ */
+ protected function _sign($httpmethod, $method, $params = array())
+ {
+ if (self::$_oauth_consumer_key == null) {
+ throw new \Exception('To generate a signature, the consumer key must be set.');
+ }
+ $sign_params = array(
+ 'consumer_key' => self::$_oauth_consumer_key,
+ 'version' => '1.0',
+ 'timestamp' => time(),
+ 'nonce' => $this->_nonce(),
+ 'signature_method' => 'HMAC-SHA1'
+ );
+ $sign_base_params = array();
+ foreach ($sign_params as $key => $value) {
+ $sign_base_params['oauth_' . $key] = $this->_url($value);
+ }
+ if ($this->_oauth_token != null) {
+ $sign_base_params['oauth_token'] = $this->_url($this->_oauth_token);
+ }
+ $oauth_params = $sign_base_params;
+ foreach ($params as $key => $value) {
+ $sign_base_params[$key] = $this->_url($value);
+ }
+ ksort($sign_base_params);
+ $sign_base_string = '';
+ foreach ($sign_base_params as $key => $value) {
+ $sign_base_string .= $key . '=' . $value . '&';
+ }
+ $sign_base_string = substr($sign_base_string, 0, -1);
+ $signature = $this->_sha1($httpmethod . '&' . $this->_url($method) . '&' . $this->_url($sign_base_string));
+
+ $params = array_merge($oauth_params, array(
+ 'oauth_signature' => $signature
+ ));
+ ksort($params);
+ $authorization = 'Authorization: OAuth ';
+ foreach ($params as $key => $value) {
+ $authorization .= $key . '="' . $this->_url($value) . '", ';
+ }
+ return substr($authorization, 0, -2);
+ }
+
+ /**
+ * Detects HTTP method to use for API call
+ *
+ * @param string $method The API method to call
+ * @param array $params The parameters to send along
+ *
+ * @return string The HTTP method that should be used
+ */
+ protected function _detectMethod($method, $params)
+ {
+ // multi-HTTP method endpoints
+ switch($method) {
+ case 'account/settings':
+ $method = count($params) > 0 ? $method . '__post' : $method;
+ break;
+ }
+
+ $httpmethods = array();
+ $httpmethods['GET'] = array(
+ // Timelines
+ 'statuses/mentions_timeline',
+ 'statuses/user_timeline',
+ 'statuses/home_timeline',
+ 'statuses/retweets_of_me',
+
+ // Tweets
+ 'statuses/retweets/:id',
+ 'statuses/show/:id',
+ 'statuses/oembed',
+
+ // Search
+ 'search/tweets',
+
+ // Direct Messages
+ 'direct_messages',
+ 'direct_messages/sent',
+ 'direct_messages/show',
+
+ // Friends & Followers
+ 'friendships/no_retweets/ids',
+ 'friends/ids',
+ 'followers/ids',
+ 'friendships/lookup',
+ 'friendships/incoming',
+ 'friendships/outgoing',
+ 'friendships/show',
+ 'friends/list',
+ 'followers/list',
+
+ // Users
+ 'account/settings',
+ 'account/verify_credentials',
+ 'blocks/list',
+ 'blocks/ids',
+ 'users/lookup',
+ 'users/show',
+ 'users/search',
+ 'users/contributees',
+ 'users/contributors',
+ 'users/profile_banner',
+
+ // Suggested Users
+ 'users/suggestions/:slug',
+ 'users/suggestions',
+ 'users/suggestions/:slug/members',
+
+ // Favorites
+ 'favorites/list',
+
+ // Lists
+ 'lists/list',
+ 'lists/statuses',
+ 'lists/memberships',
+ 'lists/subscribers',
+ 'lists/subscribers/show',
+ 'lists/members/show',
+ 'lists/members',
+ 'lists/show',
+ 'lists/subscriptions',
+
+ // Saved searches
+ 'saved_searches/list',
+ 'saved_searches/show/:id',
+
+ // Places & Geo
+ 'geo/id/:place_id',
+ 'geo/reverse_geocode',
+ 'geo/search',
+ 'geo/similar_places',
+
+ // Trends
+ 'trends/place',
+ 'trends/available',
+ 'trends/closest',
+
+ // OAuth
+ 'oauth/authenticate',
+ 'oauth/authorize',
+
+ // Help
+ 'help/configuration',
+ 'help/languages',
+ 'help/privacy',
+ 'help/tos',
+ 'application/rate_limit_status'
+ );
+ $httpmethods['POST'] = array(
+ // Tweets
+ 'statuses/destroy/:id',
+ 'statuses/update',
+ 'statuses/retweet/:id',
+ 'statuses/update_with_media',
+
+ // Media resources
+ 'statusnet/media/upload',
+
+ // Direct Messages
+ 'direct_messages/destroy',
+ 'direct_messages/new',
+
+ // Friends & Followers
+ 'friendships/create',
+ 'friendships/destroy',
+ 'friendships/update',
+
+ // Users
+ 'account/settings__post',
+ 'account/update_delivery_device',
+ 'account/update_profile',
+ 'account/update_profile_background_image',
+ 'account/update_profile_colors',
+ 'account/update_profile_image',
+ 'blocks/create',
+ 'blocks/destroy',
+ 'account/update_profile_banner',
+ 'account/remove_profile_banner',
+
+ // Favorites
+ 'favorites/destroy',
+ 'favorites/create',
+
+ // Lists
+ 'lists/members/destroy',
+ 'lists/subscribers/create',
+ 'lists/subscribers/destroy',
+ 'lists/members/create_all',
+ 'lists/members/create',
+ 'lists/destroy',
+ 'lists/update',
+ 'lists/create',
+ 'lists/members/destroy_all',
+
+ // Saved Searches
+ 'saved_searches/create',
+ 'saved_searches/destroy/:id',
+
+ // Places & Geo
+ 'geo/place',
+
+ // Spam Reporting
+ 'users/report_spam',
+
+ // OAuth
+ 'oauth/access_token',
+ 'oauth/request_token',
+ 'oauth2/token',
+ 'oauth2/invalidate_token'
+ );
+ foreach ($httpmethods as $httpmethod => $methods) {
+ if (in_array($method, $methods)) {
+ return $httpmethod;
+ }
+ }
+ throw new \Exception('Can\'t find HTTP method to use for "' . $method . '".');
+ }
+
+ /**
+ * Detects if API call should use multipart/form-data
+ *
+ * @param string $method The API method to call
+ *
+ * @return bool Whether the method should be sent as multipart
+ */
+ protected function _detectMultipart($method)
+ {
+ $multiparts = array(
+ // Tweets
+ 'statuses/update',
+ 'statuses/update_with_media',
+
+ // Media ressources
+ 'statusnet/media/upload',
+
+ // Users
+ 'account/update_profile_background_image',
+ 'account/update_profile_image',
+ 'account/update_profile_banner'
+ );
+ return in_array($method, $multiparts);
+ }
+
+ /**
+ * Detect filenames in upload parameters,
+ * build multipart request from upload params
+ *
+ * @param string $method The API method to call
+ * @param array $params The parameters to send along
+ *
+ * @return void
+ */
+ protected function _buildMultipart($method, $params)
+ {
+ // well, files will only work in multipart methods
+ if (! $this->_detectMultipart($method)) {
+ return;
+ }
+
+ // only check specific parameters
+ $possible_files = array(
+ // Tweets
+ 'statuses/update' => 'media[]',
+ 'statuses/update_with_media' => 'media[]',
+ // Accounts
+ 'account/update_profile_background_image' => 'image',
+ 'account/update_profile_image' => 'image',
+ 'account/update_profile_banner' => 'banner'
+ );
+ // method might have files?
+ if (! in_array($method, array_keys($possible_files))) {
+ return;
+ }
+
+ $possible_files = explode(' ', $possible_files[$method]);
+
+ $multipart_border = '--------------------' . $this->_nonce();
+ $multipart_request = '';
+ foreach ($params as $key => $value) {
+ // is it an array?
+ if (is_array($value)) {
+ throw new \Exception('Using URL-encoded parameters is not supported for uploading media.');
+ continue;
+ }
+
+ // check for filenames
+ if (in_array($key, $possible_files)) {
+ if (// is it a file, a readable one?
+ @file_exists($value)
+ && @is_readable($value)
+
+ // is it a valid image?
+ && $data = @getimagesize($value)
+ ) {
+ if (// is it a supported image format?
+ in_array($data[2], $this->_supported_media_files)
+ ) {
+ // try to read the file
+ ob_start();
+ readfile($value);
+ $data = ob_get_contents();
+ ob_end_clean();
+ if (strlen($data) == 0) {
+ continue;
+ }
+ $value = $data;
+ }
+ }
+
+ // To-Do
+ $tempfile = tempnam(get_config("system","temppath"), "mimecheck");
+ file_put_contents($tempfile, $data);
+ $mime = image_type_to_mime_type(exif_imagetype($tempfile));
+ unlink($tempfile);
+ $filename = "upload";
+ $parametername = str_replace("[]", "", $key);
+
+ $multipart_request .= "--".$multipart_border."\n";
+ $multipart_request .= "Content-Disposition: form-data; name=\"{$parametername}\"; filename=\"{$filename}\"\n";
+ $multipart_request .= "Content-Type: ".$mime."\n";
+ $multipart_request .= "Content-Transfer-Encoding: binary\n\n";
+ $multipart_request .= $data."\n";
+ } else {
+
+ $multipart_request .=
+ '--' . $multipart_border . "\r\n"
+ . 'Content-Disposition: form-data; name="' . $key . '"';
+
+ $multipart_request .=
+ "\r\n\r\n" . $value . "\r\n";
+ }
+ }
+ $multipart_request .= '--' . $multipart_border . '--';
+
+ return $multipart_request;
+ }
+
+
+ /**
+ * Builds the complete API endpoint url
+ *
+ * @param string $method The API method to call
+ * @param string $method_template The API method template to call
+ *
+ * @return string The URL to send the request to
+ */
+ protected function _getEndpoint($method, $method_template)
+ {
+ if (substr($method, 0, 5) == 'oauth') {
+ $url = self::$_endpoint_oauth . $method;
+ } else {
+ $url = self::$_endpoint . $method . '.json';
+ }
+ return $url;
+ }
+
+ /**
+ * Calls the API using cURL
+ *
+ * @param string $httpmethod The HTTP method to use for making the request
+ * @param string $method The API method to call
+ * @param string $method_template The templated API method to call
+ * @param array optional $params The parameters to send along
+ * @param bool optional $multipart Whether to use multipart/form-data
+ * @param bool optional $app_only_auth Whether to use app-only bearer authentication
+ *
+ * @return mixed The API reply, encoded in the set return_format
+ */
+
+ protected function _callApi($httpmethod, $method, $method_template, $params = array(), $multipart = false, $app_only_auth = false)
+ {
+ if (! function_exists('curl_init')) {
+ throw new \Exception('To make API requests, the PHP curl extension must be available.');
+ }
+ $url = $this->_getEndpoint($method, $method_template);
+ $ch = false;
+ if ($httpmethod == 'GET') {
+ $url_with_params = $url;
+ if (count($params) > 0) {
+ $url_with_params .= '?' . http_build_query($params);
+ }
+ $authorization = $this->_sign($httpmethod, $url, $params);
+ $ch = curl_init($url_with_params);
+ } else {
+ if ($multipart) {
+ $authorization = $this->_sign($httpmethod, $url, array());
+ $params = $this->_buildMultipart($method_template, $params);
+ } else {
+ $authorization = $this->_sign($httpmethod, $url, $params);
+ $params = http_build_query($params);
+ }
+ $ch = curl_init($url);
+ curl_setopt($ch, CURLOPT_POST, 1);
+ curl_setopt($ch, CURLOPT_POSTFIELDS, $params);
+ }
+ if ($app_only_auth) {
+ if (self::$_oauth_consumer_key == null) {
+ throw new \Exception('To make an app-only auth API request, the consumer key must be set.');
+ }
+ // automatically fetch bearer token, if necessary
+ if (self::$_oauth_bearer_token == null) {
+ $this->oauth2_token();
+ }
+ $authorization = 'Authorization: Bearer ' . self::$_oauth_bearer_token;
+ }
+ $request_headers = array();
+ if (isset($authorization)) {
+ $request_headers[] = $authorization;
+ $request_headers[] = 'Expect:';
+ }
+ if ($multipart) {
+ $first_newline = strpos($params, "\r\n");
+ $multipart_boundary = substr($params, 2, $first_newline - 2);
+ $request_headers[] = 'Content-Length: ' . strlen($params);
+ $request_headers[] = 'Content-Type: multipart/form-data; boundary='
+ . $multipart_boundary;
+ }
+
+ curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
+ curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 0);
+ curl_setopt($ch, CURLOPT_HEADER, 1);
+ curl_setopt($ch, CURLOPT_HTTPHEADER, $request_headers);
+ curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 1);
+ curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 2);
+ //curl_setopt($ch, CURLOPT_CAINFO, __DIR__ . '/cacert.pem');
+
+ $reply = curl_exec($ch);
+
+ // certificate validation results
+ //$validation_result = curl_errno($ch);
+ //if (in_array(
+ // $validation_result,
+ // array(
+ // CURLE_SSL_CERTPROBLEM,
+ // CURLE_SSL_CACERT,
+ // CURLE_SSL_CACERT_BADFILE,
+ // CURLE_SSL_CRL_BADFILE,
+ // CURLE_SSL_ISSUER_ERROR
+ // )
+ // )
+ //) {
+ // throw new \Exception('Error ' . $validation_result . ' while validating the Twitter API certificate.');
+ //}
+
+ $httpstatus = curl_getinfo($ch, CURLINFO_HTTP_CODE);
+ $reply = $this->_parseApiReply($method_template, $reply);
+ if ($this->_return_format == CODEBIRD_RETURNFORMAT_OBJECT) {
+ $reply->httpstatus = $httpstatus;
+ } elseif ($this->_return_format == CODEBIRD_RETURNFORMAT_ARRAY) {
+ $reply['httpstatus'] = $httpstatus;
+ }
+ return $reply;
+ }
+
+ /**
+ * Parses the API reply to encode it in the set return_format
+ *
+ * @param string $method The method that has been called
+ * @param string $reply The actual reply, JSON-encoded or URL-encoded
+ *
+ * @return array|object The parsed reply
+ */
+ protected function _parseApiReply($method, $reply)
+ {
+ // split headers and body
+ $headers = array();
+ $reply = explode("\r\n\r\n", $reply, 4);
+
+ // check if using proxy
+ if (substr($reply[0], 0, 35) === 'HTTP/1.1 200 Connection Established') {
+ array_shift($reply);
+ } elseif (count($reply) > 2) {
+ $headers = array_shift($reply);
+ $reply = array(
+ $headers,
+ implode("\r\n", $reply)
+ );
+ }
+
+ $headers_array = explode("\r\n", $reply[0]);
+ foreach ($headers_array as $header) {
+ $header_array = explode(': ', $header, 2);
+ $key = $header_array[0];
+ $value = '';
+ if (count($header_array) > 1) {
+ $value = $header_array[1];
+ }
+ $headers[$key] = $value;
+ }
+ if (count($reply) > 1) {
+ $reply = $reply[1];
+ } else {
+ $reply = '';
+ }
+
+ $need_array = $this->_return_format == CODEBIRD_RETURNFORMAT_ARRAY;
+ if ($reply == '[]') {
+ switch ($this->_return_format) {
+ case CODEBIRD_RETURNFORMAT_ARRAY:
+ return array();
+ case CODEBIRD_RETURNFORMAT_JSON:
+ return '{}';
+ case CODEBIRD_RETURNFORMAT_OBJECT:
+ return new \stdClass;
+ }
+ }
+ $parsed = array();
+ if (! $parsed = json_decode($reply, $need_array)) {
+ if ($reply) {
+ if (stripos($reply, '<' . '?xml version="1.0" encoding="UTF-8"?' . '>') === 0) {
+ // we received XML...
+ // since this only happens for errors,
+ // don't perform a full decoding
+ preg_match('/<request>(.*)<\/request>/', $reply, $request);
+ preg_match('/<error>(.*)<\/error>/', $reply, $error);
+ $parsed['request'] = htmlspecialchars_decode($request[1]);
+ $parsed['error'] = htmlspecialchars_decode($error[1]);
+ } else {
+ // assume query format
+ $reply = explode('&', $reply);
+ foreach ($reply as $element) {
+ if (stristr($element, '=')) {
+ list($key, $value) = explode('=', $element);
+ $parsed[$key] = $value;
+ } else {
+ $parsed['message'] = $element;
+ }
+ }
+ }
+ }
+ $reply = json_encode($parsed);
+ }
+ switch ($this->_return_format) {
+ case CODEBIRD_RETURNFORMAT_ARRAY:
+ return $parsed;
+ case CODEBIRD_RETURNFORMAT_JSON:
+ return $reply;
+ case CODEBIRD_RETURNFORMAT_OBJECT:
+ return (object) $parsed;
+ }
+ return $parsed;
+ }
+}
+
+?>