Added RequestInterface to make integration easier.

Since now only a RequestInterface is needed instead of a Request object,
it becomes easier to use the Server component with a different Request
object, such as the Symfony or Zend Framework Request objects.

This will now only need a small wrapper, instead of extending and
rewriting the existing Request object.

src/JacobKiers/OAuth/HmacSha1.php

@@ -54,7 +54,7 @@ class HmacSha1 extends SignatureMethod
      */
     public function buildSignature(Request $request, Client $client, Token $token = null)
     {
-        $base_string = $request->getSignatureBaseString();
+        $base_string = $request->getOAuthSignatureBaseString();
         $key = $this->getSignatureKey($client, $token);
 
         return base64_encode(hash_hmac('sha1', $base_string, $key, true));

src/JacobKiers/OAuth/Request.php

@@ -17,7 +17,7 @@ namespace JacobKiers\OAuth;
  * @package OAuth
  * @author Andy Smith
  */
-class Request
+class Request implements RequestInterface
 {
     /**
      * HTTP parameters.
@@ -241,8 +241,10 @@ class Request
      * The base string defined as the method, the url
      * and the parameters (normalized), each urlencoded
      * and the concated with &.
+     *
+     * @return string
      */
-    public function getSignatureBaseString()
+    public function getOAuthSignatureBaseString()
     {
         $parts = array(
             $this->getNormalizedHttpMethod(),
@@ -397,6 +399,79 @@ class Request
         return $signature_method->buildSignature($this, $client, $token);
     }
 
+    /**
+     * {@inheritdoc}
+     */
+    public function getOAuthCallback()
+    {
+        return $this->getParameter('oauth_callback');
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getOAuthConsumerKey()
+    {
+        return $this->getParameter('oauth_consumer_key');
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getOAuthNonce()
+    {
+        return $this->getParameter('oauth_nonce');
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getOAuthSignature()
+    {
+        return $this->getParameter('oauth_signature');
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getOAuthSignatureMethod()
+    {
+        return $this->getParameter('oauth_signature_method');
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getOAuthTimestamp()
+    {
+        return $this->getParameter('oauth_timestamp');
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getOAuthToken()
+    {
+        return $this->getParameter('oauth_token');
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getOAuthVerifier()
+    {
+        return $this->getParameter('oauth_verifier');
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getOAuthVersion()
+    {
+        return $this->getParameter('oauth_version');
+    }
+
+
     /**
      * Get current time.
      *

src/JacobKiers/OAuth/RequestInterface.php

@@ -0,0 +1,97 @@
+<?php
+/**
+ * OAuth
+ *
+ * @package OAuth
+ * @author Jacob Kiers <jacob@alphacomm.nl>
+ * @license https://raw.github.com/jacobkiers/OAuth/master/LICENSE MIT
+ * @link https://github.com/jacobkiers/OAuth
+ */
+
+namespace JacobKiers\OAuth;
+
+/**
+ * Interface providing the necessary methods to handle an OAuth request.
+ *
+ * @package OAuth
+ * @author Jacob Kiers <jacob@alphacomm.nl>
+ */
+interface RequestInterface
+{
+    /**
+     * Returns the OAuth Callback parameter.
+     *
+     * @return string
+     */
+    public function getOAuthCallback();
+
+    /**
+     * Returns the Consumer Key.
+     *
+     * @return string
+     */
+    public function getOAuthConsumerKey();
+
+    /**
+     * Returns the Nonce.
+     *
+     * In combination with the timestamp and the token, the nonce is
+     * used to prevent replay and side-channel attacks.
+     *
+     * @return string
+     */
+    public function getOAuthNonce();
+
+    /**
+     * Returns the request signature.
+     *
+     * @return string
+     */
+    public function getOAuthSignature();
+
+    /**
+     * Returns the base string of this request.
+     *
+     * The base string defined as the method, the url
+     * and the parameters (normalized), each urlencoded
+     * and the concated with &.
+     *
+     * @return string
+     */
+    public function getOAuthSignatureBaseString();
+
+    /**
+     * Returns the signature method with which this signature is signed.
+     *
+     * @return string
+     */
+    public function getOAuthSignatureMethod();
+
+    /**
+     * Returns the timestamp of the request.
+     *
+     * @return integer
+     */
+    public function getOAuthTimestamp();
+
+    /**
+     * Returns the token.
+     *
+     * @return string
+     */
+    public function getOAuthToken();
+
+    /**
+     * Returns the verifier.
+     *
+     * @return string
+     */
+    public function getOAuthVerifier();
+
+    /**
+     * Returns the OAuth version used in this request.
+     *
+     * @var string
+     */
+    public function getOAuthVersion();
+}

src/JacobKiers/OAuth/RsaSha1.php

@@ -66,7 +66,7 @@ abstract class RsaSha1 extends SignatureMethod
      */
     public function buildSignature(Request $request, Client $client, Token $token = null)
     {
-        $base_string = $request->getSignatureBaseString();
+        $base_string = $request->getOAuthSignatureBaseString();
 
         // Fetch the private key cert based on the request
         $cert = $this->fetchPrivateCert($request);
@@ -95,7 +95,7 @@ abstract class RsaSha1 extends SignatureMethod
      */
     public function checkSignature(Request $request, Client $client, Token $token, $signature)
     {
-        $base_string = $request->getSignatureBaseString();
+        $base_string = $request->getOAuthSignatureBaseString();
 
         $decoded_sig = base64_decode($signature);
 

src/JacobKiers/OAuth/Server.php

@@ -77,7 +77,7 @@ class Server
      *
      * Returns the request token on success
      *
-     * @param JacobKiers\OAuth\Request $request
+     * @param JacobKiers\OAuth\RequestInterface $request
      *
      * @return JacobKiers\OAuth\Token
      */
@@ -93,7 +93,7 @@ class Server
         $this->checkSignature($request, $client, $token);
 
         // Rev A change
-        $callback = $request->getParameter('oauth_callback');
+        $callback = $request->getOAuthCallback();
 
         return $this->data_store->newRequestToken($client, $callback);
     }
@@ -103,7 +103,7 @@ class Server
      *
      * Returns the access token on success.
      *
-     * @param JacobKiers\OAuth\Request $request
+     * @param JacobKiers\OAuth\RequestInterface $request
      *
      * @return JacobKiers\OAuth\Token
      */
@@ -119,7 +119,7 @@ class Server
         $this->checkSignature($request, $client, $token);
 
         // Rev A change
-        $verifier = $request->getParameter('oauth_verifier');
+        $verifier = $request->getOAuthVerifier();
 
         return $this->data_store->newAccessToken($token, $client, $verifier);
     }
@@ -127,7 +127,7 @@ class Server
     /**
      * Verify an api call, checks all the parameters.
      *
-     * @param JacobKiers\OAuth\Request $request
+     * @param JacobKiers\OAuth\RequestInterface $request
      *
      * @return array Client and Token
      */
@@ -145,7 +145,7 @@ class Server
     /**
      * Check that version is 1.0.
      *
-     * @param JacobKiers\OAuth\Request $request
+     * @param JacobKiers\OAuth\RequestInterface $request
      *
      * @return string
      *
@@ -153,7 +153,7 @@ class Server
      */
     private function getVersion(Request &$request)
     {
-        $version = $request->getParameter('oauth_version');
+        $version = $request->getOAuthVersion();
         if (!$version) {
             // Service Providers MUST assume the protocol version to be 1.0 if this parameter is not present.
             // Chapter 7.0 ("Accessing Protected Ressources")
@@ -168,15 +168,15 @@ class Server
     /**
      * Get the signature method name, and if it is supported.
      *
-     * @param JacobKiers\OAuth\Request $request
+     * @param JacobKiers\OAuth\RequestInterface $request
      *
      * @return string Signature method name.
      *
      * @throws JacobKiers\OAuth\OAuthException
      */
-    private function getSignatureMethod(Request $request)
+    private function getSignatureMethod(RequestInterface $request)
     {
-        $signature_method = $request instanceof Request ? $request->getParameter('oauth_signature_method') : null;
+        $signature_method = $request instanceof Request ? $request->getOAuthSignatureMethod() : null;
 
         if (!$signature_method) {
             // According to chapter 7 ("Accessing Protected Resources") the signature-method
@@ -196,15 +196,15 @@ class Server
     /**
      * Try to find the client for the provided request's client key.
      *
-     * @param JacobKiers\OAuth\Request $request
+     * @param JacobKiers\OAuth\RequestInterface $request
      *
      * @return JacobKiers\OAuth\Client
      *
      * @throws JacobKiers\OAuth\OAuthException
      */
-    private function getClient(Request $request)
+    private function getClient(RequestInterface $request)
     {
-        $client_key = $request instanceof Request ? $request->getParameter('oauth_consumer_key') : null;
+        $client_key = $request instanceof Request ? $request->getOAuthConsumerKey() : null;
 
         if (!$client_key) {
             throw new OAuthException('Invalid client key');
@@ -221,7 +221,7 @@ class Server
     /**
      * Try to find the token for the provided request's token key.
      *
-     * @param JacobKiers\OAuth\Request $request
+     * @param JacobKiers\OAuth\RequestInterface $request
      * @param JacobKiers\OAuth\Client  $client
      * @param string                   $token_type
      *
@@ -229,9 +229,9 @@ class Server
      *
      * @throws JacobKiers\OAuth\OAuthException
      */
-    private function getToken(Request $request, Client $client, $token_type = 'access')
+    private function getToken(RequestInterface $request, Client $client, $token_type = 'access')
     {
-        $token_field = $request instanceof Request ? $request->getParameter('oauth_token') : null;
+        $token_field = $request instanceof Request ? $request->getOAuthToken() : null;
 
         $token = $this->data_store->lookupToken($client, $token_type, $token_field);
         if (!$token) {
@@ -245,24 +245,24 @@ class Server
      *
      * Should determine the signature method appropriately
      *
-     * @param JacobKiers\OAuth\Request $request
+     * @param JacobKiers\OAuth\RequestInterface $request
      * @param JacobKiers\OAuth\Client  $client
      * @param JacobKiers\OAuth\Token   $token
      *
      * @throws JacobKiers\OAuth\OAuthException
      */
-    private function checkSignature(Request $request, Client $client, Token $token)
+    private function checkSignature(RequestInterface $request, Client $client, Token $token)
     {
         // this should probably be in a different method
-        $timestamp = $request instanceof Request ? $request->getParameter('oauth_timestamp') : null;
+        $timestamp = $request instanceof Request ? $request->getOAuthTimestamp() : null;
-        $nonce = $request instanceof Request ? $request->getParameter('oauth_nonce') : null;
+        $nonce = $request instanceof Request ? $request->getOAuthNonce() : null;
 
         $this->checkTimestamp($timestamp);
         $this->checkNonce($client, $token, $nonce, $timestamp);
 
         $signature_method = $this->getSignatureMethod($request);
 
-        $signature = $request->getParameter('oauth_signature');
+        $signature = $request->getOAuthSignature();
         $valid_sig = $signature_method->checkSignature($request, $client, $token, $signature);
 
         if (!$valid_sig) {

tests/HmacSha1Test.php

@@ -57,7 +57,7 @@ class HmacSha1Test extends PHPUnit_Framework_TestCase
     private function getRequest()
     {
         return m::mock('JacobKiers\OAuth\Request', function ($mock) {
-            $mock->shouldReceive('getSignatureBaseString')
+            $mock->shouldReceive('getOAuthSignatureBaseString')
                 ->withNoArgs()
                 ->andReturn('POST&http%3A%2F%2Fexample.com%2Ffoobar&oauth_signature_method%3DHMAC-SHA1')->once();
         });