133 lines
3.1 KiB
PHP
133 lines
3.1 KiB
PHP
<?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.'
|
|
);
|
|
}
|
|
}
|
|
}
|