Add Google authentication

1 files changed, 132 insertions, 0 deletions

diff --git a/vendor/OAuth/OAuth1/Signature/Signature.php b/vendor/OAuth/OAuth1/Signature/Signature.php
new file mode 100755
index 00000000..2e13eb37
--- /dev/null
+++ b/vendor/OAuth/OAuth1/Signature/Signature.php
@@ -0,0 +1,132 @@
+<?php
+
+namespace OAuth\OAuth1\Signature;
+
+use OAuth\Common\Consumer\CredentialsInterface;
+use OAuth\Common\Http\Uri\UriInterface;
+use OAuth\OAuth1\Signature\Exception\UnsupportedHashAlgorithmException;
+
+class Signature implements SignatureInterface
+{
+    /**
+     * @var Credentials
+     */
+    protected $credentials;
+
+    /**
+     * @var string
+     */
+    protected $algorithm;
+
+    /**
+     * @var string
+     */
+    protected $tokenSecret = null;
+
+    /**
+     * @param CredentialsInterface $credentials
+     */
+    public function __construct(CredentialsInterface $credentials)
+    {
+        $this->credentials = $credentials;
+    }
+
+    /**
+     * @param string $algorithm
+     */
+    public function setHashingAlgorithm($algorithm)
+    {
+        $this->algorithm = $algorithm;
+    }
+
+    /**
+     * @param string $token
+     */
+    public function setTokenSecret($token)
+    {
+        $this->tokenSecret = $token;
+    }
+
+    /**
+     * @param UriInterface $uri
+     * @param array        $params
+     * @param string       $method
+     *
+     * @return string
+     */
+    public function getSignature(UriInterface $uri, array $params, $method = 'POST')
+    {
+        parse_str($uri->getQuery(), $queryStringData);
+
+        foreach (array_merge($queryStringData, $params) as $key => $value) {
+            $signatureData[rawurlencode($key)] = rawurlencode($value);
+        }
+
+        ksort($signatureData);
+
+        // determine base uri
+        $baseUri = $uri->getScheme() . '://' . $uri->getRawAuthority();
+
+        if ('/' === $uri->getPath()) {
+            $baseUri .= $uri->hasExplicitTrailingHostSlash() ? '/' : '';
+        } else {
+            $baseUri .= $uri->getPath();
+        }
+
+        $baseString = strtoupper($method) . '&';
+        $baseString .= rawurlencode($baseUri) . '&';
+        $baseString .= rawurlencode($this->buildSignatureDataString($signatureData));
+
+        return base64_encode($this->hash($baseString));
+    }
+
+    /**
+     * @param array $signatureData
+     *
+     * @return string
+     */
+    protected function buildSignatureDataString(array $signatureData)
+    {
+        $signatureString = '';
+        $delimiter = '';
+        foreach ($signatureData as $key => $value) {
+            $signatureString .= $delimiter . $key . '=' . $value;
+
+            $delimiter = '&';
+        }
+
+        return $signatureString;
+    }
+
+    /**
+     * @return string
+     */
+    protected function getSigningKey()
+    {
+        $signingKey = rawurlencode($this->credentials->getConsumerSecret()) . '&';
+        if ($this->tokenSecret !== null) {
+            $signingKey .= rawurlencode($this->tokenSecret);
+        }
+
+        return $signingKey;
+    }
+
+    /**
+     * @param string $data
+     *
+     * @return string
+     *
+     * @throws UnsupportedHashAlgorithmException
+     */
+    protected function hash($data)
+    {
+        switch (strtoupper($this->algorithm)) {
+            case 'HMAC-SHA1':
+                return hash_hmac('sha1', $data, $this->getSigningKey(), true);
+            default:
+                throw new UnsupportedHashAlgorithmException(
+                    'Unsupported hashing algorithm (' . $this->algorithm . ') used.'
+                );
+        }
+    }
+}