Add Google authentication

vendor/OAuth/Common/Storage/Memory.php

@@ -0,0 +1,139 @@
+<?php
+
+namespace OAuth\Common\Storage;
+
+use OAuth\Common\Token\TokenInterface;
+use OAuth\Common\Storage\Exception\TokenNotFoundException;
+use OAuth\Common\Storage\Exception\AuthorizationStateNotFoundException;
+
+/*
+ * Stores a token in-memory only (destroyed at end of script execution).
+ */
+class Memory implements TokenStorageInterface
+{
+    /**
+     * @var object|TokenInterface
+     */
+    protected $tokens;
+
+    /**
+     * @var array
+     */
+    protected $states;
+
+    public function __construct()
+    {
+        $this->tokens = array();
+        $this->states = array();
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function retrieveAccessToken($service)
+    {
+        if ($this->hasAccessToken($service)) {
+            return $this->tokens[$service];
+        }
+
+        throw new TokenNotFoundException('Token not stored');
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function storeAccessToken($service, TokenInterface $token)
+    {
+        $this->tokens[$service] = $token;
+
+        // allow chaining
+        return $this;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function hasAccessToken($service)
+    {
+        return isset($this->tokens[$service]) && $this->tokens[$service] instanceof TokenInterface;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function clearToken($service)
+    {
+        if (array_key_exists($service, $this->tokens)) {
+            unset($this->tokens[$service]);
+        }
+
+        // allow chaining
+        return $this;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function clearAllTokens()
+    {
+        $this->tokens = array();
+
+        // allow chaining
+        return $this;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function retrieveAuthorizationState($service)
+    {
+        if ($this->hasAuthorizationState($service)) {
+            return $this->states[$service];
+        }
+
+        throw new AuthorizationStateNotFoundException('State not stored');
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function storeAuthorizationState($service, $state)
+    {
+        $this->states[$service] = $state;
+
+        // allow chaining
+        return $this;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function hasAuthorizationState($service)
+    {
+        return isset($this->states[$service]) && null !== $this->states[$service];
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function clearAuthorizationState($service)
+    {
+        if (array_key_exists($service, $this->states)) {
+            unset($this->states[$service]);
+        }
+
+        // allow chaining
+        return $this;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function clearAllAuthorizationStates()
+    {
+        $this->states = array();
+
+        // allow chaining
+        return $this;
+    }
+}