Add Google authentication

vendor/OAuth/Common/Storage/Exception/AuthorizationStateNotFoundException.php

@@ -0,0 +1,10 @@
+<?php
+
+namespace OAuth\Common\Storage\Exception;
+
+/**
+ * Exception thrown when a state is not found in storage.
+ */
+class AuthorizationStateNotFoundException extends StorageException
+{
+}

vendor/OAuth/Common/Storage/Exception/StorageException.php

@@ -0,0 +1,12 @@
+<?php
+
+namespace OAuth\Common\Storage\Exception;
+
+use OAuth\Common\Exception\Exception;
+
+/**
+ * Generic storage exception.
+ */
+class StorageException extends Exception
+{
+}

vendor/OAuth/Common/Storage/Exception/TokenNotFoundException.php

@@ -0,0 +1,10 @@
+<?php
+
+namespace OAuth\Common\Storage\Exception;
+
+/**
+ * Exception thrown when a token is not found in storage.
+ */
+class TokenNotFoundException extends StorageException
+{
+}

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;
+    }
+}

vendor/OAuth/Common/Storage/Redis.php

@@ -0,0 +1,230 @@
+<?php
+
+namespace OAuth\Common\Storage;
+
+use OAuth\Common\Token\TokenInterface;
+use OAuth\Common\Storage\Exception\TokenNotFoundException;
+use OAuth\Common\Storage\Exception\AuthorizationStateNotFoundException;
+use Predis\Client as Predis;
+
+/*
+ * Stores a token in a Redis server. Requires the Predis library available at https://github.com/nrk/predis
+ */
+class Redis implements TokenStorageInterface
+{
+    /**
+     * @var string
+     */
+    protected $key;
+
+    protected $stateKey;
+
+    /**
+     * @var object|\Redis
+     */
+    protected $redis;
+
+    /**
+     * @var object|TokenInterface
+     */
+    protected $cachedTokens;
+
+    /**
+     * @var object
+     */
+    protected $cachedStates;
+
+    /**
+     * @param Predis $redis An instantiated and connected redis client
+     * @param string $key The key to store the token under in redis
+     * @param string $stateKey The key to store the state under in redis.
+     */
+    public function __construct(Predis $redis, $key, $stateKey)
+    {
+        $this->redis = $redis;
+        $this->key = $key;
+        $this->stateKey = $stateKey;
+        $this->cachedTokens = array();
+        $this->cachedStates = array();
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function retrieveAccessToken($service)
+    {
+        if (!$this->hasAccessToken($service)) {
+            throw new TokenNotFoundException('Token not found in redis');
+        }
+
+        if (isset($this->cachedTokens[$service])) {
+            return $this->cachedTokens[$service];
+        }
+
+        $val = $this->redis->hget($this->key, $service);
+
+        return $this->cachedTokens[$service] = unserialize($val);
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function storeAccessToken($service, TokenInterface $token)
+    {
+        // (over)write the token
+        $this->redis->hset($this->key, $service, serialize($token));
+        $this->cachedTokens[$service] = $token;
+
+        // allow chaining
+        return $this;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function hasAccessToken($service)
+    {
+        if (isset($this->cachedTokens[$service])
+            && $this->cachedTokens[$service] instanceof TokenInterface
+        ) {
+            return true;
+        }
+
+        return $this->redis->hexists($this->key, $service);
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function clearToken($service)
+    {
+        $this->redis->hdel($this->key, $service);
+        unset($this->cachedTokens[$service]);
+
+        // allow chaining
+        return $this;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function clearAllTokens()
+    {
+        // memory
+        $this->cachedTokens = array();
+
+        // redis
+        $keys = $this->redis->hkeys($this->key);
+        $me = $this; // 5.3 compat
+
+        // pipeline for performance
+        $this->redis->pipeline(
+            function ($pipe) use ($keys, $me) {
+                foreach ($keys as $k) {
+                    $pipe->hdel($me->getKey(), $k);
+                }
+            }
+        );
+
+        // allow chaining
+        return $this;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function retrieveAuthorizationState($service)
+    {
+        if (!$this->hasAuthorizationState($service)) {
+            throw new AuthorizationStateNotFoundException('State not found in redis');
+        }
+
+        if (isset($this->cachedStates[$service])) {
+            return $this->cachedStates[$service];
+        }
+
+        $val = $this->redis->hget($this->stateKey, $service);
+
+        return $this->cachedStates[$service] = unserialize($val);
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function storeAuthorizationState($service, $state)
+    {
+        // (over)write the token
+        $this->redis->hset($this->stateKey, $service, $state);
+        $this->cachedStates[$service] = $state;
+
+        // allow chaining
+        return $this;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function hasAuthorizationState($service)
+    {
+        if (isset($this->cachedStates[$service])
+            && null !== $this->cachedStates[$service]
+        ) {
+            return true;
+        }
+
+        return $this->redis->hexists($this->stateKey, $service);
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function clearAuthorizationState($service)
+    {
+        $this->redis->hdel($this->stateKey, $service);
+        unset($this->cachedStates[$service]);
+
+        // allow chaining
+        return $this;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function clearAllAuthorizationStates()
+    {
+        // memory
+        $this->cachedStates = array();
+
+        // redis
+        $keys = $this->redis->hkeys($this->stateKey);
+        $me = $this; // 5.3 compat
+
+        // pipeline for performance
+        $this->redis->pipeline(
+            function ($pipe) use ($keys, $me) {
+                foreach ($keys as $k) {
+                    $pipe->hdel($me->getKey(), $k);
+                }
+            }
+        );
+
+        // allow chaining
+        return $this;
+    }
+
+    /**
+     * @return Predis $redis
+     */
+    public function getRedis()
+    {
+        return $this->redis;
+    }
+
+    /**
+     * @return string $key
+     */
+    public function getKey()
+    {
+        return $this->key;
+    }
+}

vendor/OAuth/Common/Storage/Session.php

@@ -0,0 +1,188 @@
+<?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 a PHP session.
+ */
+class Session implements TokenStorageInterface
+{
+    /**
+     * @var bool
+     */
+    protected $startSession;
+
+    /**
+     * @var string
+     */
+    protected $sessionVariableName;
+
+    /**
+     * @var string
+     */
+    protected $stateVariableName;
+
+    /**
+     * @param bool $startSession Whether or not to start the session upon construction.
+     * @param string $sessionVariableName the variable name to use within the _SESSION superglobal
+     * @param string $stateVariableName
+     */
+    public function __construct(
+        $startSession = true,
+        $sessionVariableName = 'lusitanian_oauth_token',
+        $stateVariableName = 'lusitanian_oauth_state'
+    ) {
+        if ($startSession && !isset($_SESSION)) {
+            session_start();
+        }
+
+        $this->startSession = $startSession;
+        $this->sessionVariableName = $sessionVariableName;
+        $this->stateVariableName = $stateVariableName;
+        if (!isset($_SESSION[$sessionVariableName])) {
+            $_SESSION[$sessionVariableName] = array();
+        }
+        if (!isset($_SESSION[$stateVariableName])) {
+            $_SESSION[$stateVariableName] = array();
+        }
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function retrieveAccessToken($service)
+    {
+        if ($this->hasAccessToken($service)) {
+            return unserialize($_SESSION[$this->sessionVariableName][$service]);
+        }
+
+        throw new TokenNotFoundException('Token not found in session, are you sure you stored it?');
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function storeAccessToken($service, TokenInterface $token)
+    {
+        $serializedToken = serialize($token);
+
+        if (isset($_SESSION[$this->sessionVariableName])
+            && is_array($_SESSION[$this->sessionVariableName])
+        ) {
+            $_SESSION[$this->sessionVariableName][$service] = $serializedToken;
+        } else {
+            $_SESSION[$this->sessionVariableName] = array(
+                $service => $serializedToken,
+            );
+        }
+
+        // allow chaining
+        return $this;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function hasAccessToken($service)
+    {
+        return isset($_SESSION[$this->sessionVariableName], $_SESSION[$this->sessionVariableName][$service]);
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function clearToken($service)
+    {
+        if (array_key_exists($service, $_SESSION[$this->sessionVariableName])) {
+            unset($_SESSION[$this->sessionVariableName][$service]);
+        }
+
+        // allow chaining
+        return $this;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function clearAllTokens()
+    {
+        unset($_SESSION[$this->sessionVariableName]);
+
+        // allow chaining
+        return $this;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function storeAuthorizationState($service, $state)
+    {
+        if (isset($_SESSION[$this->stateVariableName])
+            && is_array($_SESSION[$this->stateVariableName])
+        ) {
+            $_SESSION[$this->stateVariableName][$service] = $state;
+        } else {
+            $_SESSION[$this->stateVariableName] = array(
+                $service => $state,
+            );
+        }
+
+        // allow chaining
+        return $this;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function hasAuthorizationState($service)
+    {
+        return isset($_SESSION[$this->stateVariableName], $_SESSION[$this->stateVariableName][$service]);
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function retrieveAuthorizationState($service)
+    {
+        if ($this->hasAuthorizationState($service)) {
+            return $_SESSION[$this->stateVariableName][$service];
+        }
+
+        throw new AuthorizationStateNotFoundException('State not found in session, are you sure you stored it?');
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function clearAuthorizationState($service)
+    {
+        if (array_key_exists($service, $_SESSION[$this->stateVariableName])) {
+            unset($_SESSION[$this->stateVariableName][$service]);
+        }
+
+        // allow chaining
+        return $this;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function clearAllAuthorizationStates()
+    {
+        unset($_SESSION[$this->stateVariableName]);
+
+        // allow chaining
+        return $this;
+    }
+
+    public function __destruct()
+    {
+        if ($this->startSession) {
+            session_write_close();
+        }
+    }
+}

vendor/OAuth/Common/Storage/SymfonySession.php

@@ -0,0 +1,200 @@
+<?php
+
+namespace OAuth\Common\Storage;
+
+use OAuth\Common\Token\TokenInterface;
+use OAuth\Common\Storage\Exception\TokenNotFoundException;
+use OAuth\Common\Storage\Exception\AuthorizationStateNotFoundException;
+use Symfony\Component\HttpFoundation\Session\SessionInterface;
+
+class SymfonySession implements TokenStorageInterface
+{
+    private $session;
+    private $sessionVariableName;
+    private $stateVariableName;
+
+    /**
+     * @param SessionInterface $session
+     * @param bool $startSession
+     * @param string $sessionVariableName
+     * @param string $stateVariableName
+     */
+    public function __construct(
+        SessionInterface $session,
+        $startSession = true,
+        $sessionVariableName = 'lusitanian_oauth_token',
+        $stateVariableName = 'lusitanian_oauth_state'
+    ) {
+        $this->session = $session;
+        $this->sessionVariableName = $sessionVariableName;
+        $this->stateVariableName = $stateVariableName;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function retrieveAccessToken($service)
+    {
+        if ($this->hasAccessToken($service)) {
+            // get from session
+            $tokens = $this->session->get($this->sessionVariableName);
+
+            // one item
+            return $tokens[$service];
+        }
+
+        throw new TokenNotFoundException('Token not found in session, are you sure you stored it?');
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function storeAccessToken($service, TokenInterface $token)
+    {
+        // get previously saved tokens
+        $tokens = $this->session->get($this->sessionVariableName);
+
+        if (!is_array($tokens)) {
+            $tokens = array();
+        }
+
+        $tokens[$service] = $token;
+
+        // save
+        $this->session->set($this->sessionVariableName, $tokens);
+
+        // allow chaining
+        return $this;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function hasAccessToken($service)
+    {
+        // get from session
+        $tokens = $this->session->get($this->sessionVariableName);
+
+        return is_array($tokens)
+            && isset($tokens[$service])
+            && $tokens[$service] instanceof TokenInterface;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function clearToken($service)
+    {
+        // get previously saved tokens
+        $tokens = $this->session->get($this->sessionVariableName);
+
+        if (is_array($tokens) && array_key_exists($service, $tokens)) {
+            unset($tokens[$service]);
+
+            // Replace the stored tokens array
+            $this->session->set($this->sessionVariableName, $tokens);
+        }
+
+        // allow chaining
+        return $this;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function clearAllTokens()
+    {
+        $this->session->remove($this->sessionVariableName);
+
+        // allow chaining
+        return $this;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function retrieveAuthorizationState($service)
+    {
+        if ($this->hasAuthorizationState($service)) {
+            // get from session
+            $states = $this->session->get($this->stateVariableName);
+
+            // one item
+            return $states[$service];
+        }
+
+        throw new AuthorizationStateNotFoundException('State not found in session, are you sure you stored it?');
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function storeAuthorizationState($service, $state)
+    {
+        // get previously saved tokens
+        $states = $this->session->get($this->stateVariableName);
+
+        if (!is_array($states)) {
+            $states = array();
+        }
+
+        $states[$service] = $state;
+
+        // save
+        $this->session->set($this->stateVariableName, $states);
+
+        // allow chaining
+        return $this;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function hasAuthorizationState($service)
+    {
+        // get from session
+        $states = $this->session->get($this->stateVariableName);
+
+        return is_array($states)
+        && isset($states[$service])
+        && null !== $states[$service];
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function clearAuthorizationState($service)
+    {
+        // get previously saved tokens
+        $states = $this->session->get($this->stateVariableName);
+
+        if (is_array($states) && array_key_exists($service, $states)) {
+            unset($states[$service]);
+
+            // Replace the stored tokens array
+            $this->session->set($this->stateVariableName, $states);
+        }
+
+        // allow chaining
+        return $this;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function clearAllAuthorizationStates()
+    {
+        $this->session->remove($this->stateVariableName);
+
+        // allow chaining
+        return $this;
+    }
+
+    /**
+     * @return Session
+     */
+    public function getSession()
+    {
+        return $this->session;
+    }
+}

vendor/OAuth/Common/Storage/TokenStorageInterface.php

@@ -0,0 +1,98 @@
+<?php
+
+namespace OAuth\Common\Storage;
+
+use OAuth\Common\Token\TokenInterface;
+use OAuth\Common\Storage\Exception\TokenNotFoundException;
+
+/**
+ * All token storage providers must implement this interface.
+ */
+interface TokenStorageInterface
+{
+    /**
+     * @param string $service
+     *
+     * @return TokenInterface
+     *
+     * @throws TokenNotFoundException
+     */
+    public function retrieveAccessToken($service);
+
+    /**
+     * @param string         $service
+     * @param TokenInterface $token
+     *
+     * @return TokenStorageInterface
+     */
+    public function storeAccessToken($service, TokenInterface $token);
+
+    /**
+     * @param string $service
+     *
+     * @return bool
+     */
+    public function hasAccessToken($service);
+
+    /**
+     * Delete the users token. Aka, log out.
+     *
+     * @param string $service
+     *
+     * @return TokenStorageInterface
+     */
+    public function clearToken($service);
+
+    /**
+     * Delete *ALL* user tokens. Use with care. Most of the time you will likely
+     * want to use clearToken() instead.
+     *
+     * @return TokenStorageInterface
+     */
+    public function clearAllTokens();
+
+    /**
+     * Store the authorization state related to a given service
+     *
+     * @param string $service
+     * @param string $state
+     *
+     * @return TokenStorageInterface
+     */
+    public function storeAuthorizationState($service, $state);
+
+    /**
+     * Check if an authorization state for a given service exists
+     *
+     * @param string $service
+     *
+     * @return bool
+     */
+    public function hasAuthorizationState($service);
+
+    /**
+     * Retrieve the authorization state for a given service
+     *
+     * @param string $service
+     *
+     * @return string
+     */
+    public function retrieveAuthorizationState($service);
+
+    /**
+     * Clear the authorization state of a given service
+     *
+     * @param string $service
+     *
+     * @return TokenStorageInterface
+     */
+    public function clearAuthorizationState($service);
+
+    /**
+     * Delete *ALL* user authorization states. Use with care. Most of the time you will likely
+     * want to use clearAuthorization() instead.
+     *
+     * @return TokenStorageInterface
+     */
+    public function clearAllAuthorizationStates();
+}