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<?php
namespace Laminas\OAuth;
use Laminas\Http\Client as HttpClient;
use Laminas\Http\Request as HttpRequest;
use Laminas\Http\Response as HttpResponse;
use Laminas\Stdlib\ArrayUtils;
use Traversable;
/**
* @category Laminas
* @package Laminas_OAuth
*/
class Client extends HttpClient
{
/**
* Flag to indicate that the client has detected the server as supporting
* OAuth 1.0a
*/
public static $supportsRevisionA = false;
/**
* Holds the current OAuth Configuration set encapsulated in an instance
* of Laminas_OAuth_Config; it's not a Laminas_Config instance since that level
* of abstraction is unnecessary and doesn't let me escape the accessors
* and mutators anyway!
*
* @var Config\StandardConfig
*/
protected $oauthConfig = null;
/**
* True if this request is being made with data supplied by
* a stream object instead of a raw encoded string.
*
* @var bool
*/
protected $streamingRequest = null;
/**
* Constructor; creates a new HTTP Client instance which itself is
* just a typical Laminas_HTTP_Client subclass with some OAuth icing to
* assist in automating OAuth parameter generation, addition and
* cryptographic signing of requests.
*
* @param array|Traversable $oauthOptions
* @param string $uri
* @param array|Traversable $options
*/
public function __construct($oauthOptions, $uri = null, $config = null)
{
parent::__construct($uri, $config);
$this->oauthConfig = new Config\StandardConfig();
if ($oauthOptions !== null) {
if ($oauthOptions instanceof Traversable) {
$oauthOptions = ArrayUtils::iteratorToArray($oauthOptions);
}
$this->oauthConfig->setOptions($oauthOptions);
}
}
/**
* Set the streamingRequest variable which controls whether we are
* sending the raw (already encoded) POST data from a stream source.
*
* @param boolean $value The value to set.
* @return void
*/
public function setStreamingRequest($value)
{
$this->streamingRequest = $value;
}
/**
* Check whether the client is set to perform streaming requests.
*
* @return boolean True if yes, false otherwise.
*/
public function getStreamingRequest()
{
if ($this->streamingRequest) {
return true;
}
return false;
}
/**
* Prepare the request body (for POST and PUT requests)
*
* @return string
* @throws \Laminas\Http\Client\Exception\RuntimeException
*/
protected function prepareBody()
{
if ($this->streamingRequest) {
$this->setHeaders(['Content-Length' =>
$this->raw_post_data->getTotalSize()]);
return $this->raw_post_data;
}
return parent::prepareBody();
}
/**
* Clear all custom parameters we set.
*
* @return HttpClient
*/
public function resetParameters($clearAll = false)
{
$this->streamingRequest = false;
return parent::resetParameters($clearAll);
}
/**
* Set the raw (already encoded) POST data from a stream source.
*
* This is used to support POSTing from open file handles without
* caching the entire body into memory. It is a wrapper around
* Laminas\Http\Client::setRawBody().
*
* @param string $data The request data
* @param string $enctype The encoding type
* @return HttpClient
*/
public function setRawDataStream($data, $enctype = null)
{
$this->streamingRequest = true;
$this->setEncType($enctype);
return $this->setRawBody($data);
}
/**
* Same as Laminas_HTTP_Client::setMethod() except it also creates an
* OAuth specific reference to the method type.
* Might be defunct and removed in a later iteration.
*
* @param string $method
* @return HttpClient
*/
public function setMethod($method = HttpRequest::METHOD_GET)
{
if ($method == HttpRequest::METHOD_GET) {
$this->setRequestMethod(HttpRequest::METHOD_GET);
} elseif ($method == HttpRequest::METHOD_POST) {
$this->setRequestMethod(HttpRequest::METHOD_POST);
} elseif ($method == HttpRequest::METHOD_PUT) {
$this->setRequestMethod(HttpRequest::METHOD_PUT);
} elseif ($method == HttpRequest::METHOD_DELETE) {
$this->setRequestMethod(HttpRequest::METHOD_DELETE);
} elseif ($method == HttpRequest::METHOD_HEAD) {
$this->setRequestMethod(HttpRequest::METHOD_HEAD);
}
return parent::setMethod($method);
}
/**
* Same as Laminas\HTTP\Client::send() except just before the request is
* executed, we automatically append any necessary OAuth parameters and
* sign the request using the relevant signature method.
*
* @param null|Laminas\Http\Request $method
* @return HttpResponse
*/
public function send(HttpRequest $request = null)
{
$this->prepareOAuth();
return parent::send($request);
}
/**
* Performs OAuth preparation on the request before sending.
*
* This primarily means taking a request, correctly encoding and signing
* all parameters, and applying the correct OAuth scheme to the method
* being used.
*
* @return void
* @throws \Laminas\OAuth\Exception\RuntimeException If POSTBODY scheme
* requested, but GET request method used; or if invalid request scheme
* provided
*/
public function prepareOAuth()
{
$requestScheme = $this->getRequestScheme();
switch ($requestScheme) {
case OAuth::REQUEST_SCHEME_HEADER:
$oauthHeaderValue = $this->getToken()->toHeader(
$this->getRequest()->getUriString(),
$this->oauthConfig,
$this->getSignableParameters()
);
$requestHeaders = $this->getRequest()->getHeaders();
$requestHeaders->addHeaders(['Authorization' => $oauthHeaderValue]);
break;
case OAuth::REQUEST_SCHEME_POSTBODY:
if ($this->getRequestMethod() == HttpRequest::METHOD_GET) {
throw new Exception\RuntimeException(
'The client is configured to'
. ' pass OAuth parameters through a POST body but request method'
. ' is set to GET'
);
}
$query = $this->getToken()->toQueryString(
$this->getRequest()->getUriString(),
$this->oauthConfig,
$this->getSignableParameters()
);
$this->setRawBody($query);
break;
case OAuth::REQUEST_SCHEME_QUERYSTRING:
$query = $this->getToken()->toQueryString(
$this->getRequest()->getUriString(),
$this->oauthConfig,
$this->getSignableParameters()
);
$this->getUri()->setQuery($query);
break;
default:
throw new Exception\RuntimeException('Invalid request scheme: ' . $requestScheme);
}
}
/**
* Collect all signable parameters into a single array across query string
* and POST body.
*
* @return array
*/
protected function getSignableParameters()
{
$params = [];
if ($this->getRequest()->getQuery()->count() > 0) {
$params = array_merge($params, $this->getRequest()->getQuery()->toArray());
}
if ($this->getRequest()->getPost()->count() > 0) {
$params = array_merge($params, $this->getRequest()->getPost()->toArray());
}
return $params;
}
/**
* Simple Proxy to the current Laminas_OAuth_Config method. It's that instance
* which holds all configuration methods and values this object also presents
* as it's API.
*
* @param string $method
* @param array $args
* @return mixed
* @throws Exception\BadMethodCallException if method does not exist in config object
*/
public function __call($method, array $args)
{
if (! method_exists($this->oauthConfig, $method)) {
throw new Exception\BadMethodCallException('Method does not exist: ' . $method);
}
return call_user_func_array([$this->oauthConfig, $method], $args);
}
}