510 lines
14 KiB
PHP
510 lines
14 KiB
PHP
<?php
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/**
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* OAuth
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*
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* @package OAuth
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* @author Andy Smith
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* @author Gary Jones <gary@garyjones.co.uk>
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* @license https://raw.github.com/jacobkiers/OAuth/master/LICENSE MIT
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* @link https://github.com/jacobkiers/OAuth
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*/
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namespace JacobKiers\OAuth\Request;
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use \JacobKiers\OAuth\Util;
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use \JacobKiers\OAuth\OAuthException;
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use \JacobKiers\OAuth\Token\TokenInterface;
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use \JacobKiers\OAuth\Consumer\ConsumerInterface;
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/**
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* Handle an OAuth request.
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*
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* @package OAuth
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* @author Andy Smith
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*/
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class Request implements RequestInterface
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{
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/**
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* HTTP parameters.
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*
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* @var array
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*/
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protected $parameters;
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/**
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* HTTP method - likely GET or POST.
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*
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* @var string HTTP method.
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*/
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protected $http_method;
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/**
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* The URL the request was made to.
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*
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* @var string Request URL.
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*/
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protected $http_url;
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/**
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* OAuth version.
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*
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* @var string
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*/
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public static $version = '1.0';
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/**
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* Stream of POSTed file.
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*
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* @var string
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*/
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public static $POST_INPUT = 'php://input';
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/**
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* Construct a Request object.
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*
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* @param string $http_method Request HTTP method.
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* @param string $http_url Request URL.
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* @param array $parameters HTTP parameters.
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*/
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public function __construct($http_method, $http_url, array $parameters = null)
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{
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if(!isset($parameters['oauth_consumer_key'])) {
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throw new OAuthException('You need a OAuth consumer key to proceed');
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}
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$parameters = ($parameters) ? $parameters : array();
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$this->parameters = array_merge(Util::parseParameters(parse_url($http_url, PHP_URL_QUERY)), $parameters);
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$this->http_method = $http_method;
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$this->http_url = $http_url;
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}
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/**
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* a
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*/
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/**
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* Attempt to build up a request from what was passed to the server.
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*
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* @param string $http_method Request HTTP method.
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* @param string $http_url Request URL.
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* @param array $parameters HTTP parameters.
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*
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* @return JacobKiers\OAuth\Request\RequestInterface
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*/
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public static function fromRequest($http_method = null, $http_url = null, $parameters = null)
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{
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$scheme = (!isset($_SERVER['HTTPS']) || $_SERVER['HTTPS'] != 'on') ? 'http' : 'https';
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$scheme = isset($_SERVER['HTTP_X_FORWARDED_PROTO'])
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? $_SERVER['HTTP_X_FORWARDED_PROTO']
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: $scheme;
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$port = isset($_SERVER['HTTP_X_FORWARDED_PORT'])
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? $_SERVER['HTTP_X_FORWARDED_PORT']
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: $_SERVER['SERVER_PORT'];
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$http_url = ($http_url) ? $http_url : $scheme .
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'://' . $_SERVER['HTTP_HOST'] .
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':' .
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$port .
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$_SERVER['REQUEST_URI'];
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$http_method = ($http_method) ? $http_method : $_SERVER['REQUEST_METHOD'];
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// We weren't handed any parameters, so let's find the ones relevant to
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// this request.
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// If you run XML-RPC or similar you should use this to provide your own
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// parsed parameter-list
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if (!$parameters) {
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// Find request headers
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$request_headers = Util::getHeaders();
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// Parse the query-string to find GET parameters
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$parameters = Util::parseParameters($_SERVER['QUERY_STRING']);
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// It's a POST request of the proper content-type, so parse POST
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// parameters and add those overriding any duplicates from GET
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if ('POST' == $http_method
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&& isset($request_headers['Content-Type'])
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&& strstr($request_headers['Content-Type'], 'application/x-www-form-urlencoded')
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) {
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$post_data = Util::parseParameters(
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file_get_contents(self::$POST_INPUT)
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);
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$parameters = array_merge($parameters, $post_data);
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}
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// We have a Authorization-header with OAuth data. Parse the header
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// and add those overriding any duplicates from GET or POST
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if (isset($request_headers['Authorization']) &&
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substr($request_headers['Authorization'], 0, 6) == 'OAuth ') {
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$header_parameters = Util::splitHeader(
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$request_headers['Authorization']
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);
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$parameters = array_merge($parameters, $header_parameters);
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}
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}
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return new Request($http_method, $http_url, $parameters);
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}
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/**
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* Helper function to set up the request.
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*
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* @param JacobKiers\OAuth\Consumer\ConsumerInterface $consumer
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* @param JacobKiers\OAuth\Token\TokenInterface $token
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* @param string $http_method
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* @param string $http_url
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* @param array $parameters
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*
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* @return JacobKiers\OAuth\Request\RequestInterface
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*/
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public static function fromConsumerAndToken(
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ConsumerInterface $consumer,
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TokenInterface $token,
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$http_method,
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$http_url,
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array $parameters = null
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) {
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$parameters = ($parameters) ? $parameters : array();
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$defaults = array(
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'oauth_nonce' => Request::generateNonce(),
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'oauth_timestamp' => Request::generateTimestamp(),
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'oauth_consumer_key' => $consumer->getKey());
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if ($token->getKey()) {
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$defaults['oauth_token'] = $token->getKey();
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}
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$parameters = array_merge($defaults, $parameters);
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return new Request($http_method, $http_url, $parameters);
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}
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/**
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* Add additional parameter to Request.
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*
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* @param string $name
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* @param string $value
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* @param bool $allow_duplicates
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*/
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public function setParameter($name, $value, $allow_duplicates = true)
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{
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if ($allow_duplicates && isset($this->parameters[$name])) {
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// We have already added parameter(s) with this name, so add to the list
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if (is_scalar($this->parameters[$name])) {
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// This is the first duplicate, so transform scalar (string)
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// into an array so we can add the duplicates
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$this->parameters[$name] = array($this->parameters[$name]);
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}
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$this->parameters[$name][] = $value;
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} else {
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$this->parameters[$name] = $value;
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}
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}
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/**
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* Get single request parameter by name.
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*
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* @param string $name
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*
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* @return string
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*/
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public function getParameter($name)
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{
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return isset($this->parameters[$name]) ? $this->parameters[$name] : null;
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}
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/**
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* Get all request parameters.
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*
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* @return array
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*/
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public function getParameters()
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{
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return $this->parameters;
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}
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/**
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* Unset single request parameter by name.
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*
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* @param string $name
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*/
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public function unsetParameter($name)
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{
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unset($this->parameters[$name]);
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}
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/**
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* The request parameters, sorted and concatenated into a normalized string.
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*
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* @return string
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*/
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public function getSignableParameters()
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{
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// Grab all parameters
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$params = $this->getParameters();
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// Remove oauth_signature if present
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// Ref: Spec: 9.1.1 ("The oauth_signature parameter MUST be excluded.")
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if (isset($params['oauth_signature'])) {
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unset($params['oauth_signature']);
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}
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return Util::buildHttpQuery($params);
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}
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/**
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* Returns the base string of this request
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*
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* The base string defined as the method, the url
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* and the parameters (normalized), each urlencoded
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* and the concated with &.
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*
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* @return string
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*/
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public function getOAuthSignatureBaseString()
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{
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$parts = array(
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$this->getNormalizedHttpMethod(),
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$this->getNormalizedHttpUrl(),
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$this->getSignableParameters()
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);
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$encoded_parts = Util::urlencodeRfc3986($parts);
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return implode('&', $encoded_parts);
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}
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/**
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* Uppercases the HTTP method.
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*
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* @return string
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*/
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public function getNormalizedHttpMethod()
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{
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return strtoupper($this->http_method);
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}
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/**
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* Parses the url and rebuilds it to be
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* scheme://host/path
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*
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* @return string URL
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*/
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public function getNormalizedHttpUrl()
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{
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$parts = parse_url($this->http_url);
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$scheme = (isset($parts['scheme'])) ? $parts['scheme'] : 'http';
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$port = (isset($parts['port'])) ? $parts['port'] : '';
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if (isset($parts['host'])) {
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// parse_url in PHP 5.4.8 includes the port in the host, so we need to strip it.
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$host_and_maybe_port = explode(':', $parts['host']);
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$host = $host_and_maybe_port[0];
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} else {
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$host = '';
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}
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// For PHP 5.4+, use:
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// $host = (isset($parts['host'])) ? explode(':', $parts['host'])[0] : '';
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$path = (isset($parts['path'])) ? $parts['path'] : '';
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if ($port) {
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if (('https' == $scheme && $port != '443')
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|| ('http' == $scheme && $port != '80')) {
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$host = "$host:$port";
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}
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}
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return "$scheme://$host$path";
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}
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/**
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* Builds a URL usable for a GET request.
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*
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* @return string
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*/
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public function toUrl()
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{
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$post_data = $this->toPostdata();
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$out = $this->getNormalizedHttpUrl();
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if ($post_data) {
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$out .= '?' . $post_data;
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}
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return $out;
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}
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/**
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* Builds the data one would send in a POST request.
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*
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* @return string
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*/
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public function toPostdata()
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{
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return Util::buildHttpQuery($this->getParameters());
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}
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/**
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* Builds the Authorization: header.
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*
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* @param string $realm Authorization realm.
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*
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* @return string
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*
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* @throws JacobKiers\OAuth\OAuthException
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*/
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public function toHeader($realm = null)
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{
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$first = true;
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if ($realm) {
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$out = 'Authorization: OAuth realm="' . Util::urlencodeRfc3986($realm) . '"';
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$first = false;
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} else {
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$out = 'Authorization: OAuth';
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}
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$total = array();
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foreach ($this->parameters as $k => $v) {
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if (substr($k, 0, 5) != 'oauth') {
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continue;
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}
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if (is_array($v)) {
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throw new OAuthException('Arrays not supported in headers');
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}
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$out .= ($first) ? ' ' : ',';
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$out .= Util::urlencodeRfc3986($k) .
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'="' .
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Util::urlencodeRfc3986($v) .
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'"';
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$first = false;
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}
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return $out;
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}
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/**
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* Return request object cast as string.
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*
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* @return string
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*/
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public function __toString()
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{
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return $this->toUrl();
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}
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/**
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* Build signature and add it as parameter.
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*
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* @param string $signature_method
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* @param JacobKiers\OAuth\Consumer\ConsumerInterface $consumer
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* @param JacobKiers\OAuth\Token\TokenInterface $token
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*/
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public function signRequest($signature_method, ConsumerInterface $consumer, TokenInterface $token)
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{
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$this->setParameter('oauth_signature_method', $signature_method->getName(), false);
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$signature = $this->buildSignature($signature_method, $consumer, $token);
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$this->setParameter('oauth_signature', $signature, false);
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}
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/**
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* Build signature.
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*
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* @param string $signature_method
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* @param JacobKiers\OAuth\Consumer\ConsumerInterface $consumer
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* @param JacobKiers\OAuth\Token\TokenInterface $token
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*
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* @return string
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*/
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public function buildSignature($signature_method, ConsumerInterface $consumer, TokenInterface $token)
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{
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return $signature_method->buildSignature($this, $consumer, $token);
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}
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/**
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* {@inheritdoc}
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*/
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public function getOAuthCallback()
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{
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return $this->getParameter('oauth_callback');
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}
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/**
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* {@inheritdoc}
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*/
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public function getOAuthConsumerKey()
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{
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return $this->getParameter('oauth_consumer_key');
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}
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/**
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* {@inheritdoc}
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*/
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public function getOAuthNonce()
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{
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return $this->getParameter('oauth_nonce');
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}
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/**
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* {@inheritdoc}
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*/
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public function getOAuthSignature()
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{
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return $this->getParameter('oauth_signature');
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}
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/**
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* {@inheritdoc}
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*/
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public function getOAuthSignatureMethod()
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{
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return $this->getParameter('oauth_signature_method');
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}
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/**
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* {@inheritdoc}
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*/
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public function getOAuthTimestamp()
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{
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return $this->getParameter('oauth_timestamp');
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}
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/**
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* {@inheritdoc}
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*/
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public function getOAuthToken()
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{
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return $this->getParameter('oauth_token');
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}
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/**
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* {@inheritdoc}
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*/
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public function getOAuthVerifier()
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{
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return $this->getParameter('oauth_verifier');
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}
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/**
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* {@inheritdoc}
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*/
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public function getOAuthVersion()
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{
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return $this->getParameter('oauth_version');
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}
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/**
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* Get current time.
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*
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* @return int Timestamp.
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*/
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private static function generateTimestamp()
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{
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return time();
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}
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/**
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* Generate nonce.
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*
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* @return string 32-character hexadecimal number.
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*/
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private static function generateNonce()
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{
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return md5(microtime() . mt_rand()); // md5s look nicer than numbers
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}
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}
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