mirror of
https://github.com/friendica/friendica
synced 2025-04-26 17:10:10 +00:00
Fix security vulnerbilities.
Fix possible length extension attack, predicable generators, timing attacks on hash comparision and improved formatting.
This commit is contained in:
dew-git
parent
50fa119f79
commit
811cdcdfcb
8 changed files with 455 additions and 332 deletions
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@ -4,27 +4,30 @@
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/* Generic exception class
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*/
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if (!class_exists('OAuthException', false)) {
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class OAuthException extends Exception {
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// pass
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}
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class OAuthException extends Exception
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{ }
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}
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class OAuthConsumer {
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class OAuthConsumer
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{
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public $key;
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public $secret;
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function __construct($key, $secret, $callback_url=NULL) {
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function __construct($key, $secret, $callback_url = NULL)
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{
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$this->key = $key;
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$this->secret = $secret;
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$this->callback_url = $callback_url;
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}
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function __toString() {
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function __toString()
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{
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return "OAuthConsumer[key=$this->key,secret=$this->secret]";
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}
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}
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class OAuthToken {
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class OAuthToken
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{
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// access tokens and request tokens
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public $key;
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public $secret;
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@ -37,7 +40,8 @@ class OAuthToken {
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* key = the token
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* secret = the token secret
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*/
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function __construct($key, $secret) {
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function __construct($key, $secret)
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{
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$this->key = $key;
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$this->secret = $secret;
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}
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@ -46,14 +50,16 @@ class OAuthToken {
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* generates the basic string serialization of a token that a server
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* would respond to request_token and access_token calls with
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*/
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function to_string() {
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function to_string()
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{
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return "oauth_token=" .
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OAuthUtil::urlencode_rfc3986($this->key) .
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"&oauth_token_secret=" .
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OAuthUtil::urlencode_rfc3986($this->secret);
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OAuthUtil::urlencode_rfc3986($this->key) .
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"&oauth_token_secret=" .
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OAuthUtil::urlencode_rfc3986($this->secret);
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}
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function __toString() {
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function __toString()
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{
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return $this->to_string();
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}
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}
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@ -62,7 +68,8 @@ class OAuthToken {
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* A class for implementing a Signature Method
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* See section 9 ("Signing Requests") in the spec
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*/
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abstract class OAuthSignatureMethod {
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abstract class OAuthSignatureMethod
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{
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/**
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* Needs to return the name of the Signature Method (ie HMAC-SHA1)
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* @return string
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@ -89,25 +96,29 @@ abstract class OAuthSignatureMethod {
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* @param string $signature
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* @return bool
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*/
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public function check_signature($request, $consumer, $token, $signature) {
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public function check_signature($request, $consumer, $token, $signature)
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{
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$built = $this->build_signature($request, $consumer, $token);
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return ($built == $signature);
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}
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}
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/**
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* The HMAC-SHA1 signature method uses the HMAC-SHA1 signature algorithm as defined in [RFC2104]
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* where the Signature Base String is the text and the key is the concatenated values (each first
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* encoded per Parameter Encoding) of the Consumer Secret and Token Secret, separated by an '&'
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* The HMAC-SHA1 signature method uses the HMAC-SHA1 signature algorithm as defined in [RFC2104]
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* where the Signature Base String is the text and the key is the concatenated values (each first
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* encoded per Parameter Encoding) of the Consumer Secret and Token Secret, separated by an '&'
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* character (ASCII code 38) even if empty.
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* - Chapter 9.2 ("HMAC-SHA1")
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*/
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class OAuthSignatureMethod_HMAC_SHA1 extends OAuthSignatureMethod {
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function get_name() {
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class OAuthSignatureMethod_HMAC_SHA1 extends OAuthSignatureMethod
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{
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function get_name()
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{
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return "HMAC-SHA1";
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}
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public function build_signature($request, $consumer, $token) {
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public function build_signature($request, $consumer, $token)
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{
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$base_string = $request->get_signature_base_string();
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$request->base_string = $base_string;
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@ -126,25 +137,28 @@ class OAuthSignatureMethod_HMAC_SHA1 extends OAuthSignatureMethod {
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}
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/**
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* The PLAINTEXT method does not provide any security protection and SHOULD only be used
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* The PLAINTEXT method does not provide any security protection and SHOULD only be used
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* over a secure channel such as HTTPS. It does not use the Signature Base String.
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* - Chapter 9.4 ("PLAINTEXT")
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*/
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class OAuthSignatureMethod_PLAINTEXT extends OAuthSignatureMethod {
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public function get_name() {
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class OAuthSignatureMethod_PLAINTEXT extends OAuthSignatureMethod
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{
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public function get_name()
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{
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return "PLAINTEXT";
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}
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/**
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* oauth_signature is set to the concatenated encoded values of the Consumer Secret and
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* Token Secret, separated by a '&' character (ASCII code 38), even if either secret is
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* oauth_signature is set to the concatenated encoded values of the Consumer Secret and
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* Token Secret, separated by a '&' character (ASCII code 38), even if either secret is
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* empty. The result MUST be encoded again.
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* - Chapter 9.4.1 ("Generating Signatures")
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*
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* Please note that the second encoding MUST NOT happen in the SignatureMethod, as
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* OAuthRequest handles this!
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*/
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public function build_signature($request, $consumer, $token) {
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public function build_signature($request, $consumer, $token)
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{
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$key_parts = array(
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$consumer->secret,
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($token) ? $token->secret : ""
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@ -159,15 +173,17 @@ class OAuthSignatureMethod_PLAINTEXT extends OAuthSignatureMethod {
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}
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/**
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* The RSA-SHA1 signature method uses the RSASSA-PKCS1-v1_5 signature algorithm as defined in
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* [RFC3447] section 8.2 (more simply known as PKCS#1), using SHA-1 as the hash function for
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* EMSA-PKCS1-v1_5. It is assumed that the Consumer has provided its RSA public key in a
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* verified way to the Service Provider, in a manner which is beyond the scope of this
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* The RSA-SHA1 signature method uses the RSASSA-PKCS1-v1_5 signature algorithm as defined in
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* [RFC3447] section 8.2 (more simply known as PKCS#1), using SHA-1 as the hash function for
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* EMSA-PKCS1-v1_5. It is assumed that the Consumer has provided its RSA public key in a
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* verified way to the Service Provider, in a manner which is beyond the scope of this
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* specification.
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* - Chapter 9.3 ("RSA-SHA1")
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*/
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abstract class OAuthSignatureMethod_RSA_SHA1 extends OAuthSignatureMethod {
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public function get_name() {
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abstract class OAuthSignatureMethod_RSA_SHA1 extends OAuthSignatureMethod
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{
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public function get_name()
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{
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return "RSA-SHA1";
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}
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@ -185,7 +201,8 @@ abstract class OAuthSignatureMethod_RSA_SHA1 extends OAuthSignatureMethod {
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// Either way should return a string representation of the certificate
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protected abstract function fetch_private_cert(&$request);
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public function build_signature($request, $consumer, $token) {
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public function build_signature($request, $consumer, $token)
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{
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$base_string = $request->get_signature_base_string();
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$request->base_string = $base_string;
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@ -204,7 +221,8 @@ abstract class OAuthSignatureMethod_RSA_SHA1 extends OAuthSignatureMethod {
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return base64_encode($signature);
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}
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public function check_signature($request, $consumer, $token, $signature) {
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public function check_signature($request, $consumer, $token, $signature)
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{
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$decoded_sig = base64_decode($signature);
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$base_string = $request->get_signature_base_string();
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@ -225,7 +243,8 @@ abstract class OAuthSignatureMethod_RSA_SHA1 extends OAuthSignatureMethod {
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}
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}
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class OAuthRequest {
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class OAuthRequest
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{
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private $parameters;
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private $http_method;
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private $http_url;
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@ -234,9 +253,10 @@ class OAuthRequest {
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public static $version = '1.0';
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public static $POST_INPUT = 'php://input';
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function __construct($http_method, $http_url, $parameters=NULL) {
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function __construct($http_method, $http_url, $parameters = NULL)
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{
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@$parameters or $parameters = array();
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$parameters = array_merge( OAuthUtil::parse_parameters(parse_url($http_url, PHP_URL_QUERY)), $parameters);
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$parameters = array_merge(OAuthUtil::parse_parameters(parse_url($http_url, PHP_URL_QUERY)), $parameters);
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$this->parameters = $parameters;
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$this->http_method = $http_method;
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$this->http_url = $http_url;
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@ -246,15 +266,16 @@ class OAuthRequest {
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/**
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* attempt to build up a request from what was passed to the server
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*/
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public static function from_request($http_method=NULL, $http_url=NULL, $parameters=NULL) {
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public static function from_request($http_method = NULL, $http_url = NULL, $parameters = NULL)
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{
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$scheme = (!isset($_SERVER['HTTPS']) || $_SERVER['HTTPS'] != "on")
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? 'http'
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: 'https';
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? 'http'
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: 'https';
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@$http_url or $http_url = $scheme .
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'://' . $_SERVER['HTTP_HOST'] .
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':' .
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$_SERVER['SERVER_PORT'] .
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$_SERVER['REQUEST_URI'];
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'://' . $_SERVER['HTTP_HOST'] .
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':' .
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$_SERVER['SERVER_PORT'] .
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$_SERVER['REQUEST_URI'];
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@$http_method or $http_method = $_SERVER['REQUEST_METHOD'];
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// We weren't handed any parameters, so let's find the ones relevant to
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@ -270,10 +291,13 @@ class OAuthRequest {
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// It's a POST request of the proper content-type, so parse POST
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// parameters and add those overriding any duplicates from GET
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if ($http_method == "POST"
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&& @strstr($request_headers["Content-Type"],
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"application/x-www-form-urlencoded")
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) {
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if (
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$http_method == "POST"
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&& @strstr(
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$request_headers["Content-Type"],
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"application/x-www-form-urlencoded"
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)
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) {
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$post_data = OAuthUtil::parse_parameters(
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file_get_contents(self::$POST_INPUT)
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);
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@ -288,25 +312,27 @@ class OAuthRequest {
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);
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$parameters = array_merge($parameters, $header_parameters);
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}
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}
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// fix for friendica redirect system
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$http_url = substr($http_url, 0, strpos($http_url,$parameters['pagename'])+strlen($parameters['pagename']));
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unset( $parameters['pagename'] );
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$http_url = substr($http_url, 0, strpos($http_url, $parameters['pagename']) + strlen($parameters['pagename']));
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unset($parameters['pagename']);
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return new OAuthRequest($http_method, $http_url, $parameters);
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}
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/**
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* pretty much a helper function to set up the request
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*/
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public static function from_consumer_and_token($consumer, $token, $http_method, $http_url, $parameters=NULL) {
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public static function from_consumer_and_token($consumer, $token, $http_method, $http_url, $parameters = NULL)
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{
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@$parameters or $parameters = array();
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$defaults = array("oauth_version" => OAuthRequest::$version,
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"oauth_nonce" => OAuthRequest::generate_nonce(),
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"oauth_timestamp" => OAuthRequest::generate_timestamp(),
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"oauth_consumer_key" => $consumer->key);
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$defaults = array(
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"oauth_version" => OAuthRequest::$version,
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"oauth_nonce" => OAuthRequest::generate_nonce(),
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"oauth_timestamp" => OAuthRequest::generate_timestamp(),
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"oauth_consumer_key" => $consumer->key
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);
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if ($token)
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$defaults['oauth_token'] = $token->key;
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@ -315,7 +341,8 @@ class OAuthRequest {
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return new OAuthRequest($http_method, $http_url, $parameters);
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}
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public function set_parameter($name, $value, $allow_duplicates = true) {
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public function set_parameter($name, $value, $allow_duplicates = true)
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{
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if ($allow_duplicates && isset($this->parameters[$name])) {
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// We have already added parameter(s) with this name, so add to the list
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if (is_scalar($this->parameters[$name])) {
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@ -330,15 +357,18 @@ class OAuthRequest {
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}
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}
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public function get_parameter($name) {
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public function get_parameter($name)
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{
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return isset($this->parameters[$name]) ? $this->parameters[$name] : null;
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}
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public function get_parameters() {
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public function get_parameters()
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{
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return $this->parameters;
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}
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public function unset_parameter($name) {
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public function unset_parameter($name)
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{
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unset($this->parameters[$name]);
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}
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@ -346,7 +376,8 @@ class OAuthRequest {
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* The request parameters, sorted and concatenated into a normalized string.
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* @return string
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*/
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public function get_signable_parameters() {
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public function get_signable_parameters()
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{
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// Grab all parameters
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$params = $this->parameters;
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@ -366,7 +397,8 @@ class OAuthRequest {
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* and the parameters (normalized), each urlencoded
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* and the concated with &.
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*/
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public function get_signature_base_string() {
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public function get_signature_base_string()
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{
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$parts = array(
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$this->get_normalized_http_method(),
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$this->get_normalized_http_url(),
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@ -381,7 +413,8 @@ class OAuthRequest {
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/**
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* just uppercases the http method
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*/
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public function get_normalized_http_method() {
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public function get_normalized_http_method()
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{
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return strtoupper($this->http_method);
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}
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@ -389,7 +422,8 @@ class OAuthRequest {
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* parses the url and rebuilds it to be
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* scheme://host/path
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*/
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public function get_normalized_http_url() {
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public function get_normalized_http_url()
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{
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$parts = parse_url($this->http_url);
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$port = @$parts['port'];
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@ -400,7 +434,8 @@ class OAuthRequest {
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$port or $port = ($scheme == 'https') ? '443' : '80';
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if (($scheme == 'https' && $port != '443')
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|| ($scheme == 'http' && $port != '80')) {
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|| ($scheme == 'http' && $port != '80')
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) {
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$host = "$host:$port";
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}
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return "$scheme://$host$path";
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@ -409,11 +444,12 @@ class OAuthRequest {
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/**
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* builds a url usable for a GET request
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*/
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public function to_url() {
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public function to_url()
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{
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$post_data = $this->to_postdata();
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$out = $this->get_normalized_http_url();
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if ($post_data) {
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$out .= '?'.$post_data;
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$out .= '?' . $post_data;
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}
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return $out;
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}
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@ -421,9 +457,10 @@ class OAuthRequest {
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/**
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* builds the data one would send in a POST request
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*/
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public function to_postdata($raw = false) {
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public function to_postdata($raw = false)
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{
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if ($raw)
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return($this->parameters);
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return $this->parameters;
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else
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return OAuthUtil::build_http_query($this->parameters);
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}
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@ -431,15 +468,15 @@ class OAuthRequest {
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/**
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* builds the Authorization: header
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*/
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public function to_header($realm=null) {
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public function to_header($realm = null)
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{
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$first = true;
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if($realm) {
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if ($realm) {
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$out = 'Authorization: OAuth realm="' . OAuthUtil::urlencode_rfc3986($realm) . '"';
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$first = false;
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} else
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$out = 'Authorization: OAuth';
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$total = array();
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foreach ($this->parameters as $k => $v) {
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if (substr($k, 0, 5) != "oauth") continue;
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if (is_array($v)) {
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@ -447,20 +484,22 @@ class OAuthRequest {
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}
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$out .= ($first) ? ' ' : ',';
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$out .= OAuthUtil::urlencode_rfc3986($k) .
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'="' .
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OAuthUtil::urlencode_rfc3986($v) .
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'"';
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'="' .
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OAuthUtil::urlencode_rfc3986($v) .
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'"';
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$first = false;
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}
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return $out;
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}
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public function __toString() {
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public function __toString()
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{
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return $this->to_url();
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}
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public function sign_request($signature_method, $consumer, $token) {
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public function sign_request($signature_method, $consumer, $token)
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{
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$this->set_parameter(
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"oauth_signature_method",
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$signature_method->get_name(),
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|
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@ -470,7 +509,8 @@ class OAuthRequest {
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$this->set_parameter("oauth_signature", $signature, false);
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}
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|
||||
public function build_signature($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 bin2hex(random_bytes(16));
|
||||
}
|
||||
}
|
||||
|
||||
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);
|
||||
}
|
||||
}
|
||||
|
||||
?>
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue