X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=library%2FOAuth1.php;h=e3ca246467c258138094e2c5e0c3dd1e33b03c18;hb=b543ee8ac78168328c7a7f2d725ee01bb333e941;hp=27ee090b114239499c8ac47f5bf04aeec2972ea4;hpb=895b3abf320a28ecf0f797f4f4900e6baf429308;p=friendica.git diff --git a/library/OAuth1.php b/library/OAuth1.php index 27ee090b11..e3ca246467 100644 --- a/library/OAuth1.php +++ b/library/OAuth1.php @@ -4,27 +4,30 @@ /* Generic exception class */ if (!class_exists('OAuthException', false)) { - class OAuthException extends Exception { - // pass - } + class OAuthException extends Exception + { } } -class OAuthConsumer { +class OAuthConsumer +{ public $key; public $secret; - function __construct($key, $secret, $callback_url=NULL) { + function __construct($key, $secret, $callback_url = NULL) + { $this->key = $key; $this->secret = $secret; $this->callback_url = $callback_url; } - function __toString() { + function __toString() + { return "OAuthConsumer[key=$this->key,secret=$this->secret]"; } } -class OAuthToken { +class OAuthToken +{ // access tokens and request tokens public $key; public $secret; @@ -37,7 +40,8 @@ class OAuthToken { * key = the token * secret = the token secret */ - function __construct($key, $secret) { + function __construct($key, $secret) + { $this->key = $key; $this->secret = $secret; } @@ -46,14 +50,16 @@ class OAuthToken { * generates the basic string serialization of a token that a server * would respond to request_token and access_token calls with */ - function to_string() { + function to_string() + { return "oauth_token=" . - OAuthUtil::urlencode_rfc3986($this->key) . - "&oauth_token_secret=" . - OAuthUtil::urlencode_rfc3986($this->secret); + OAuthUtil::urlencode_rfc3986($this->key) . + "&oauth_token_secret=" . + OAuthUtil::urlencode_rfc3986($this->secret); } - function __toString() { + function __toString() + { return $this->to_string(); } } @@ -62,7 +68,8 @@ class OAuthToken { * A class for implementing a Signature Method * See section 9 ("Signing Requests") in the spec */ -abstract class OAuthSignatureMethod { +abstract class OAuthSignatureMethod +{ /** * Needs to return the name of the Signature Method (ie HMAC-SHA1) * @return string @@ -89,25 +96,29 @@ abstract class OAuthSignatureMethod { * @param string $signature * @return bool */ - public function check_signature($request, $consumer, $token, $signature) { + public function check_signature($request, $consumer, $token, $signature) + { $built = $this->build_signature($request, $consumer, $token); return ($built == $signature); } } /** - * The HMAC-SHA1 signature method uses the HMAC-SHA1 signature algorithm as defined in [RFC2104] - * where the Signature Base String is the text and the key is the concatenated values (each first - * encoded per Parameter Encoding) of the Consumer Secret and Token Secret, separated by an '&' + * The HMAC-SHA1 signature method uses the HMAC-SHA1 signature algorithm as defined in [RFC2104] + * where the Signature Base String is the text and the key is the concatenated values (each first + * encoded per Parameter Encoding) of the Consumer Secret and Token Secret, separated by an '&' * character (ASCII code 38) even if empty. * - Chapter 9.2 ("HMAC-SHA1") */ -class OAuthSignatureMethod_HMAC_SHA1 extends OAuthSignatureMethod { - function get_name() { +class OAuthSignatureMethod_HMAC_SHA1 extends OAuthSignatureMethod +{ + function get_name() + { return "HMAC-SHA1"; } - public function build_signature($request, $consumer, $token) { + public function build_signature($request, $consumer, $token) + { $base_string = $request->get_signature_base_string(); $request->base_string = $base_string; @@ -126,25 +137,28 @@ class OAuthSignatureMethod_HMAC_SHA1 extends OAuthSignatureMethod { } /** - * The PLAINTEXT method does not provide any security protection and SHOULD only be used + * The PLAINTEXT method does not provide any security protection and SHOULD only be used * over a secure channel such as HTTPS. It does not use the Signature Base String. * - Chapter 9.4 ("PLAINTEXT") */ -class OAuthSignatureMethod_PLAINTEXT extends OAuthSignatureMethod { - public function get_name() { +class OAuthSignatureMethod_PLAINTEXT extends OAuthSignatureMethod +{ + public function get_name() + { return "PLAINTEXT"; } /** - * oauth_signature is set to the concatenated encoded values of the Consumer Secret and - * Token Secret, separated by a '&' character (ASCII code 38), even if either secret is + * oauth_signature is set to the concatenated encoded values of the Consumer Secret and + * Token Secret, separated by a '&' character (ASCII code 38), even if either secret is * empty. The result MUST be encoded again. * - Chapter 9.4.1 ("Generating Signatures") * * Please note that the second encoding MUST NOT happen in the SignatureMethod, as * OAuthRequest handles this! */ - public function build_signature($request, $consumer, $token) { + public function build_signature($request, $consumer, $token) + { $key_parts = array( $consumer->secret, ($token) ? $token->secret : "" @@ -159,15 +173,17 @@ class OAuthSignatureMethod_PLAINTEXT extends OAuthSignatureMethod { } /** - * The RSA-SHA1 signature method uses the RSASSA-PKCS1-v1_5 signature algorithm as defined in - * [RFC3447] section 8.2 (more simply known as PKCS#1), using SHA-1 as the hash function for - * EMSA-PKCS1-v1_5. It is assumed that the Consumer has provided its RSA public key in a - * verified way to the Service Provider, in a manner which is beyond the scope of this + * The RSA-SHA1 signature method uses the RSASSA-PKCS1-v1_5 signature algorithm as defined in + * [RFC3447] section 8.2 (more simply known as PKCS#1), using SHA-1 as the hash function for + * EMSA-PKCS1-v1_5. It is assumed that the Consumer has provided its RSA public key in a + * verified way to the Service Provider, in a manner which is beyond the scope of this * specification. * - Chapter 9.3 ("RSA-SHA1") */ -abstract class OAuthSignatureMethod_RSA_SHA1 extends OAuthSignatureMethod { - public function get_name() { +abstract class OAuthSignatureMethod_RSA_SHA1 extends OAuthSignatureMethod +{ + public function get_name() + { return "RSA-SHA1"; } @@ -185,7 +201,8 @@ abstract class OAuthSignatureMethod_RSA_SHA1 extends OAuthSignatureMethod { // Either way should return a string representation of the certificate protected abstract function fetch_private_cert(&$request); - public function build_signature($request, $consumer, $token) { + public function build_signature($request, $consumer, $token) + { $base_string = $request->get_signature_base_string(); $request->base_string = $base_string; @@ -204,7 +221,8 @@ abstract class OAuthSignatureMethod_RSA_SHA1 extends OAuthSignatureMethod { return base64_encode($signature); } - public function check_signature($request, $consumer, $token, $signature) { + public function check_signature($request, $consumer, $token, $signature) + { $decoded_sig = base64_decode($signature); $base_string = $request->get_signature_base_string(); @@ -225,7 +243,8 @@ abstract class OAuthSignatureMethod_RSA_SHA1 extends OAuthSignatureMethod { } } -class OAuthRequest { +class OAuthRequest +{ private $parameters; private $http_method; private $http_url; @@ -234,9 +253,10 @@ class OAuthRequest { public static $version = '1.0'; public static $POST_INPUT = 'php://input'; - function __construct($http_method, $http_url, $parameters=NULL) { + function __construct($http_method, $http_url, $parameters = NULL) + { @$parameters or $parameters = array(); - $parameters = array_merge( OAuthUtil::parse_parameters(parse_url($http_url, PHP_URL_QUERY)), $parameters); + $parameters = array_merge(OAuthUtil::parse_parameters(parse_url($http_url, PHP_URL_QUERY)), $parameters); $this->parameters = $parameters; $this->http_method = $http_method; $this->http_url = $http_url; @@ -246,15 +266,16 @@ class OAuthRequest { /** * attempt to build up a request from what was passed to the server */ - public static function from_request($http_method=NULL, $http_url=NULL, $parameters=NULL) { + public static function from_request($http_method = NULL, $http_url = NULL, $parameters = NULL) + { $scheme = (!isset($_SERVER['HTTPS']) || $_SERVER['HTTPS'] != "on") - ? 'http' - : 'https'; + ? 'http' + : 'https'; @$http_url or $http_url = $scheme . - '://' . $_SERVER['HTTP_HOST'] . - ':' . - $_SERVER['SERVER_PORT'] . - $_SERVER['REQUEST_URI']; + '://' . $_SERVER['HTTP_HOST'] . + ':' . + $_SERVER['SERVER_PORT'] . + $_SERVER['REQUEST_URI']; @$http_method or $http_method = $_SERVER['REQUEST_METHOD']; // We weren't handed any parameters, so let's find the ones relevant to @@ -270,10 +291,13 @@ class OAuthRequest { // It's a POST request of the proper content-type, so parse POST // parameters and add those overriding any duplicates from GET - if ($http_method == "POST" - && @strstr($request_headers["Content-Type"], - "application/x-www-form-urlencoded") - ) { + 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) ); @@ -288,25 +312,27 @@ class OAuthRequest { ); $parameters = array_merge($parameters, $header_parameters); } - } // fix for friendica redirect system - - $http_url = substr($http_url, 0, strpos($http_url,$parameters['pagename'])+strlen($parameters['pagename'])); - unset( $parameters['pagename'] ); - + + $http_url = substr($http_url, 0, strpos($http_url, $parameters['pagename']) + strlen($parameters['pagename'])); + unset($parameters['pagename']); + return new OAuthRequest($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, $parameters=NULL) { + public static function from_consumer_and_token($consumer, $token, $http_method, $http_url, $parameters = NULL) + { @$parameters or $parameters = array(); - $defaults = array("oauth_version" => OAuthRequest::$version, - "oauth_nonce" => OAuthRequest::generate_nonce(), - "oauth_timestamp" => OAuthRequest::generate_timestamp(), - "oauth_consumer_key" => $consumer->key); + $defaults = array( + "oauth_version" => OAuthRequest::$version, + "oauth_nonce" => OAuthRequest::generate_nonce(), + "oauth_timestamp" => OAuthRequest::generate_timestamp(), + "oauth_consumer_key" => $consumer->key + ); if ($token) $defaults['oauth_token'] = $token->key; @@ -315,7 +341,8 @@ class OAuthRequest { return new OAuthRequest($http_method, $http_url, $parameters); } - public function set_parameter($name, $value, $allow_duplicates = true) { + public function set_parameter($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])) { @@ -330,15 +357,18 @@ class OAuthRequest { } } - public function get_parameter($name) { + public function get_parameter($name) + { return isset($this->parameters[$name]) ? $this->parameters[$name] : null; } - public function get_parameters() { + public function get_parameters() + { return $this->parameters; } - public function unset_parameter($name) { + public function unset_parameter($name) + { unset($this->parameters[$name]); } @@ -346,7 +376,8 @@ class OAuthRequest { * The request parameters, sorted and concatenated into a normalized string. * @return string */ - public function get_signable_parameters() { + public function get_signable_parameters() + { // Grab all parameters $params = $this->parameters; @@ -366,7 +397,8 @@ class OAuthRequest { * and the parameters (normalized), each urlencoded * and the concated with &. */ - public function get_signature_base_string() { + public function get_signature_base_string() + { $parts = array( $this->get_normalized_http_method(), $this->get_normalized_http_url(), @@ -381,7 +413,8 @@ class OAuthRequest { /** * just uppercases the http method */ - public function get_normalized_http_method() { + public function get_normalized_http_method() + { return strtoupper($this->http_method); } @@ -389,7 +422,8 @@ class OAuthRequest { * parses the url and rebuilds it to be * scheme://host/path */ - public function get_normalized_http_url() { + public function get_normalized_http_url() + { $parts = parse_url($this->http_url); $port = @$parts['port']; @@ -400,7 +434,8 @@ class OAuthRequest { $port or $port = ($scheme == 'https') ? '443' : '80'; if (($scheme == 'https' && $port != '443') - || ($scheme == 'http' && $port != '80')) { + || ($scheme == 'http' && $port != '80') + ) { $host = "$host:$port"; } return "$scheme://$host$path"; @@ -409,11 +444,12 @@ class OAuthRequest { /** * builds a url usable for a GET request */ - public function to_url() { + public function to_url() + { $post_data = $this->to_postdata(); $out = $this->get_normalized_http_url(); if ($post_data) { - $out .= '?'.$post_data; + $out .= '?' . $post_data; } return $out; } @@ -421,9 +457,10 @@ class OAuthRequest { /** * builds the data one would send in a POST request */ - public function to_postdata($raw = false) { + public function to_postdata($raw = false) + { if ($raw) - return($this->parameters); + return $this->parameters; else return OAuthUtil::build_http_query($this->parameters); } @@ -431,15 +468,15 @@ class OAuthRequest { /** * builds the Authorization: header */ - public function to_header($realm=null) { + public function to_header($realm = null) + { $first = true; - if($realm) { + 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)) { @@ -447,20 +484,22 @@ class OAuthRequest { } $out .= ($first) ? ' ' : ','; $out .= OAuthUtil::urlencode_rfc3986($k) . - '="' . - OAuthUtil::urlencode_rfc3986($v) . - '"'; + '="' . + OAuthUtil::urlencode_rfc3986($v) . + '"'; $first = false; } return $out; } - public function __toString() { + public function __toString() + { return $this->to_url(); } - public function sign_request($signature_method, $consumer, $token) { + public function sign_request($signature_method, $consumer, $token) + { $this->set_parameter( "oauth_signature_method", $signature_method->get_name(), @@ -470,7 +509,8 @@ class OAuthRequest { $this->set_parameter("oauth_signature", $signature, false); } - public function build_signature($signature_method, $consumer, $token) { + public function build_signature($signature_method, $consumer, $token) + { $signature = $signature_method->build_signature($this, $consumer, $token); return $signature; } @@ -478,33 +518,35 @@ class OAuthRequest { /** * util function: current timestamp */ - private static function generate_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 + private static function generate_nonce() + { + return Friendica\Util\Strings::getRandomHex(32); } } -class OAuthServer { +class OAuthServer +{ protected $timestamp_threshold = 300; // in seconds, five minutes protected $version = '1.0'; // hi blaine protected $signature_methods = array(); protected $data_store; - function __construct($data_store) { + function __construct($data_store) + { $this->data_store = $data_store; } - public function add_signature_method($signature_method) { + public function add_signature_method($signature_method) + { $this->signature_methods[$signature_method->get_name()] = $signature_method; } @@ -515,7 +557,8 @@ class OAuthServer { * process a request_token request * returns the request token on success */ - public function fetch_request_token(&$request) { + public function fetch_request_token(&$request) + { $this->get_version($request); $consumer = $this->get_consumer($request); @@ -536,7 +579,8 @@ class OAuthServer { * process an access_token request * returns the access token on success */ - public function fetch_access_token(&$request) { + public function fetch_access_token(&$request) + { $this->get_version($request); $consumer = $this->get_consumer($request); @@ -556,22 +600,24 @@ class OAuthServer { /** * verify an api call, checks all the parameters */ - public function verify_request(&$request) { + public function verify_request(&$request) + { $this->get_version($request); $consumer = $this->get_consumer($request); $token = $this->get_token($request, $consumer, "access"); $this->check_signature($request, $consumer, $token); - return array($consumer, $token); + return [$consumer, $token]; } // Internals from here /** * version 1 */ - private function get_version(&$request) { + private function get_version(&$request) + { $version = $request->get_parameter("oauth_version"); if (!$version) { - // Service Providers MUST assume the protocol version to be 1.0 if this parameter is not present. + // Service Providers MUST assume the protocol version to be 1.0 if this parameter is not present. // Chapter 7.0 ("Accessing Protected Ressources") $version = '1.0'; } @@ -584,9 +630,10 @@ class OAuthServer { /** * figure out the signature with some defaults */ - private function get_signature_method(&$request) { + private function get_signature_method(&$request) + { $signature_method = - @$request->get_parameter("oauth_signature_method"); + @$request->get_parameter("oauth_signature_method"); if (!$signature_method) { // According to chapter 7 ("Accessing Protected Ressources") the signature-method @@ -594,12 +641,14 @@ class OAuthServer { throw new OAuthException('No signature method parameter. This parameter is required'); } - if (!in_array($signature_method, - array_keys($this->signature_methods))) { + if (!in_array( + $signature_method, + array_keys($this->signature_methods) + )) { throw new OAuthException( "Signature method '$signature_method' not supported " . - "try one of the following: " . - implode(", ", array_keys($this->signature_methods)) + "try one of the following: " . + implode(", ", array_keys($this->signature_methods)) ); } return $this->signature_methods[$signature_method]; @@ -608,7 +657,8 @@ class OAuthServer { /** * try to find the consumer for the provided request's consumer key */ - private function get_consumer(&$request) { + private function get_consumer(&$request) + { $consumer_key = @$request->get_parameter("oauth_consumer_key"); if (!$consumer_key) { throw new OAuthException("Invalid consumer key"); @@ -625,10 +675,13 @@ class OAuthServer { /** * try to find the token for the provided request's token key */ - private function get_token(&$request, $consumer, $token_type="access") { + private function get_token(&$request, $consumer, $token_type = "access") + { $token_field = @$request->get_parameter('oauth_token'); $token = $this->data_store->lookup_token( - $consumer, $token_type, $token_field + $consumer, + $token_type, + $token_field ); if (!$token) { throw new OAuthException("Invalid $token_type token: $token_field"); @@ -640,7 +693,8 @@ class OAuthServer { * all-in-one function to check the signature on a request * should guess the signature method appropriately */ - private function check_signature(&$request, $consumer, $token) { + private function check_signature(&$request, $consumer, $token) + { // this should probably be in a different method $timestamp = @$request->get_parameter('oauth_timestamp'); $nonce = @$request->get_parameter('oauth_nonce'); @@ -657,7 +711,7 @@ class OAuthServer { $token, $signature ); - + if (!$valid_sig) { throw new OAuthException("Invalid signature"); @@ -667,12 +721,13 @@ class OAuthServer { /** * check that the timestamp is new enough */ - private function check_timestamp($timestamp) { - if( ! $timestamp ) + private function check_timestamp($timestamp) + { + if (!$timestamp) throw new OAuthException( 'Missing timestamp parameter. The parameter is required' ); - + // verify that timestamp is recentish $now = time(); if (abs($now - $timestamp) > $this->timestamp_threshold) { @@ -685,8 +740,9 @@ class OAuthServer { /** * check that the nonce is not repeated */ - private function check_nonce($consumer, $token, $nonce, $timestamp) { - if( ! $nonce ) + private function check_nonce($consumer, $token, $nonce, $timestamp) + { + if (!$nonce) throw new OAuthException( 'Missing nonce parameter. The parameter is required' ); @@ -702,65 +758,73 @@ class OAuthServer { throw new OAuthException("Nonce already used: $nonce"); } } - } -class OAuthDataStore { - function lookup_consumer($consumer_key) { +class OAuthDataStore +{ + function lookup_consumer($consumer_key) + { // implement me } - function lookup_token($consumer, $token_type, $token) { + function lookup_token($consumer, $token_type, $token) + { // implement me } - function lookup_nonce($consumer, $token, $nonce, $timestamp) { + function lookup_nonce($consumer, $token, $nonce, $timestamp) + { // implement me } - function new_request_token($consumer, $callback = null) { + function new_request_token($consumer, $callback = null) + { // return a new token attached to this consumer } - function new_access_token($token, $consumer, $verifier = null) { + function new_access_token($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($input)) - ); - } else { - return ''; +class OAuthUtil +{ + public static function urlencode_rfc3986($input) + { + if (is_array($input)) { + return array_map(['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) { + 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, $only_allow_oauth_parameters = true) { + public static function split_header($header, $only_allow_oauth_parameters = true) + { $pattern = '/(([-_a-z]*)=("([^"]*)"|([^,]*)),?)/'; $offset = 0; - $params = array(); + $params = []; while (preg_match($pattern, $header, $matches, PREG_OFFSET_CAPTURE, $offset) > 0) { $match = $matches[0]; $header_name = $matches[2][0]; @@ -779,7 +843,8 @@ class OAuthUtil { } // helper to try to sort out headers for people who aren't running apache - public static function get_headers() { + 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 @@ -789,22 +854,22 @@ class OAuthUtil { // 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 ) { + $out = []; + foreach ($headers as $key => $value) { $key = str_replace( - " ", - "-", - ucwords(strtolower(str_replace("-", " ", $key))) - ); + " ", + "-", + 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']) ) + $out = []; + if (isset($_SERVER['CONTENT_TYPE'])) $out['Content-Type'] = $_SERVER['CONTENT_TYPE']; - if( isset($_ENV['CONTENT_TYPE']) ) + if (isset($_ENV['CONTENT_TYPE'])) $out['Content-Type'] = $_ENV['CONTENT_TYPE']; foreach ($_SERVER as $key => $value) { @@ -827,12 +892,13 @@ class OAuthUtil { // 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( $input ) { + public static function parse_parameters($input) + { if (!isset($input) || !$input) return array(); $pairs = explode('&', $input); - $parsed_parameters = array(); + $parsed_parameters = []; foreach ($pairs as $pair) { $split = explode('=', $pair, 2); $parameter = OAuthUtil::urldecode_rfc3986($split[0]); @@ -845,7 +911,7 @@ class OAuthUtil { 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] = [$parsed_parameters[$parameter]]; } $parsed_parameters[$parameter][] = $value; @@ -856,7 +922,8 @@ class OAuthUtil { return $parsed_parameters; } - public static function build_http_query($params) { + public static function build_http_query($params) + { if (!$params) return ''; // Urlencode both keys and values @@ -868,7 +935,7 @@ class OAuthUtil { // Ref: Spec: 9.1.1 (1) uksort($params, 'strcmp'); - $pairs = array(); + $pairs = []; foreach ($params as $parameter => $value) { if (is_array($value)) { // If two or more parameters share the same name, they are sorted by their value @@ -886,5 +953,3 @@ class OAuthUtil { return implode('&', $pairs); } } - -?>