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<?php
namespace Guzzle\Http;
use Guzzle\Common\Collection;
use Guzzle\Common\AbstractHasDispatcher;
use Guzzle\Common\Exception\ExceptionCollection;
use Guzzle\Common\Exception\InvalidArgumentException;
use Guzzle\Common\Exception\RuntimeException;
use Guzzle\Common\Version;
use Guzzle\Parser\ParserRegistry;
use Guzzle\Parser\UriTemplate\UriTemplateInterface;
use Guzzle\Http\Message\RequestInterface;
use Guzzle\Http\Message\RequestFactory;
use Guzzle\Http\Message\RequestFactoryInterface;
use Guzzle\Http\Curl\CurlMultiInterface;
use Guzzle\Http\Curl\CurlMultiProxy;
use Guzzle\Http\Curl\CurlHandle;
use Guzzle\Http\Curl\CurlVersion;
/**
* HTTP client
*/
class Client extends AbstractHasDispatcher implements ClientInterface
{
/** @deprecated Use [request.options][params] */
const REQUEST_PARAMS = 'request.params';
const REQUEST_OPTIONS = 'request.options';
const CURL_OPTIONS = 'curl.options';
const SSL_CERT_AUTHORITY = 'ssl.certificate_authority';
const DISABLE_REDIRECTS = RedirectPlugin::DISABLE;
/** @var Collection Default HTTP headers to set on each request */
protected $defaultHeaders;
/** @var string The user agent string to set on each request */
protected $userAgent;
/** @var Collection Parameter object holding configuration data */
private $config;
/** @var Url Base URL of the client */
private $baseUrl;
/** @var CurlMultiInterface CurlMulti object used internally */
private $curlMulti;
/** @var UriTemplateInterface URI template owned by the client */
private $uriTemplate;
/** @var RequestFactoryInterface Request factory used by the client */
protected $requestFactory;
public static function getAllEvents()
{
return array(self::CREATE_REQUEST);
}
/**
* @param string $baseUrl Base URL of the web service
* @param array|Collection $config Configuration settings
*
* @throws RuntimeException if cURL is not installed
*/
public function __construct($baseUrl = '', $config = null)
{
if (!extension_loaded('curl')) {
// @codeCoverageIgnoreStart
throw new RuntimeException('The PHP cURL extension must be installed to use Guzzle.');
// @codeCoverageIgnoreEnd
}
$this->setConfig($config ?: new Collection());
$this->initSsl();
$this->setBaseUrl($baseUrl);
$this->defaultHeaders = new Collection();
$this->setRequestFactory(RequestFactory::getInstance());
$this->userAgent = $this->getDefaultUserAgent();
if (!$this->config[self::DISABLE_REDIRECTS]) {
$this->addSubscriber(new RedirectPlugin());
}
}
final public function setConfig($config)
{
if ($config instanceof Collection) {
$this->config = $config;
} elseif (is_array($config)) {
$this->config = new Collection($config);
} else {
throw new InvalidArgumentException('Config must be an array or Collection');
}
return $this;
}
final public function getConfig($key = false)
{
return $key ? $this->config[$key] : $this->config;
}
/**
* Set a default request option on the client that will be used as a default for each request
*
* @param string $keyOrPath request.options key (e.g. allow_redirects) or path to a nested key (e.g. headers/foo)
* @param mixed $value Value to set
*
* @return $this
*/
public function setDefaultOption($keyOrPath, $value)
{
$keyOrPath = self::REQUEST_OPTIONS . '/' . $keyOrPath;
$this->config->setPath($keyOrPath, $value);
return $this;
}
/**
* Retrieve a default request option from the client
*
* @param string $keyOrPath request.options key (e.g. allow_redirects) or path to a nested key (e.g. headers/foo)
*
* @return mixed|null
*/
public function getDefaultOption($keyOrPath)
{
$keyOrPath = self::REQUEST_OPTIONS . '/' . $keyOrPath;
return $this->config->getPath($keyOrPath);
}
final public function setSslVerification($certificateAuthority = true, $verifyPeer = true, $verifyHost = 2)
{
$opts = $this->config[self::CURL_OPTIONS] ?: array();
if ($certificateAuthority === true) {
// use bundled CA bundle, set secure defaults
$opts[CURLOPT_CAINFO] = __DIR__ . '/Resources/cacert.pem';
$opts[CURLOPT_SSL_VERIFYPEER] = true;
$opts[CURLOPT_SSL_VERIFYHOST] = 2;
} elseif ($certificateAuthority === false) {
unset($opts[CURLOPT_CAINFO]);
$opts[CURLOPT_SSL_VERIFYPEER] = false;
$opts[CURLOPT_SSL_VERIFYHOST] = 2;
} elseif ($verifyPeer !== true && $verifyPeer !== false && $verifyPeer !== 1 && $verifyPeer !== 0) {
throw new InvalidArgumentException('verifyPeer must be 1, 0 or boolean');
} elseif ($verifyHost !== 0 && $verifyHost !== 1 && $verifyHost !== 2) {
throw new InvalidArgumentException('verifyHost must be 0, 1 or 2');
} else {
$opts[CURLOPT_SSL_VERIFYPEER] = $verifyPeer;
$opts[CURLOPT_SSL_VERIFYHOST] = $verifyHost;
if (is_file($certificateAuthority)) {
unset($opts[CURLOPT_CAPATH]);
$opts[CURLOPT_CAINFO] = $certificateAuthority;
} elseif (is_dir($certificateAuthority)) {
unset($opts[CURLOPT_CAINFO]);
$opts[CURLOPT_CAPATH] = $certificateAuthority;
} else {
throw new RuntimeException(
'Invalid option passed to ' . self::SSL_CERT_AUTHORITY . ': ' . $certificateAuthority
);
}
}
$this->config->set(self::CURL_OPTIONS, $opts);
return $this;
}
public function createRequest($method = 'GET', $uri = null, $headers = null, $body = null, array $options = array())
{
if (!$uri) {
$url = $this->getBaseUrl();
} else {
if (!is_array($uri)) {
$templateVars = null;
} else {
list($uri, $templateVars) = $uri;
}
if (substr($uri, 0, 4) === 'http') {
// Use absolute URLs as-is
$url = $this->expandTemplate($uri, $templateVars);
} else {
$url = Url::factory($this->getBaseUrl())->combine($this->expandTemplate($uri, $templateVars));
}
}
// If default headers are provided, then merge them under any explicitly provided headers for the request
if (count($this->defaultHeaders)) {
if (!$headers) {
$headers = $this->defaultHeaders->toArray();
} elseif (is_array($headers)) {
$headers += $this->defaultHeaders->toArray();
} elseif ($headers instanceof Collection) {
$headers = $headers->toArray() + $this->defaultHeaders->toArray();
}
}
return $this->prepareRequest($this->requestFactory->create($method, (string) $url, $headers, $body), $options);
}
public function getBaseUrl($expand = true)
{
return $expand ? $this->expandTemplate($this->baseUrl) : $this->baseUrl;
}
public function setBaseUrl($url)
{
$this->baseUrl = $url;
return $this;
}
public function setUserAgent($userAgent, $includeDefault = false)
{
if ($includeDefault) {
$userAgent .= ' ' . $this->getDefaultUserAgent();
}
$this->userAgent = $userAgent;
return $this;
}
/**
* Get the default User-Agent string to use with Guzzle
*
* @return string
*/
public function getDefaultUserAgent()
{
return 'Guzzle/' . Version::VERSION
. ' curl/' . CurlVersion::getInstance()->get('version')
. ' PHP/' . PHP_VERSION;
}
public function get($uri = null, $headers = null, $options = array())
{
// BC compat: $options can be a string, resource, etc to specify where the response body is downloaded
return is_array($options)
? $this->createRequest('GET', $uri, $headers, null, $options)
: $this->createRequest('GET', $uri, $headers, $options);
}
public function head($uri = null, $headers = null, array $options = array())
{
return $this->createRequest('HEAD', $uri, $headers, null, $options);
}
public function delete($uri = null, $headers = null, $body = null, array $options = array())
{
return $this->createRequest('DELETE', $uri, $headers, $body, $options);
}
public function put($uri = null, $headers = null, $body = null, array $options = array())
{
return $this->createRequest('PUT', $uri, $headers, $body, $options);
}
public function patch($uri = null, $headers = null, $body = null, array $options = array())
{
return $this->createRequest('PATCH', $uri, $headers, $body, $options);
}
public function post($uri = null, $headers = null, $postBody = null, array $options = array())
{
return $this->createRequest('POST', $uri, $headers, $postBody, $options);
}
public function options($uri = null, array $options = array())
{
return $this->createRequest('OPTIONS', $uri, $options);
}
public function send($requests)
{
if (!($requests instanceof RequestInterface)) {
return $this->sendMultiple($requests);
}
try {
/** @var $requests RequestInterface */
$this->getCurlMulti()->add($requests)->send();
return $requests->getResponse();
} catch (ExceptionCollection $e) {
throw $e->getFirst();
}
}
/**
* Set a curl multi object to be used internally by the client for transferring requests.
*
* @param CurlMultiInterface $curlMulti Multi object
*
* @return self
*/
public function setCurlMulti(CurlMultiInterface $curlMulti)
{
$this->curlMulti = $curlMulti;
return $this;
}
/**
* @return CurlMultiInterface|CurlMultiProxy
*/
public function getCurlMulti()
{
if (!$this->curlMulti) {
$this->curlMulti = new CurlMultiProxy();
}
return $this->curlMulti;
}
public function setRequestFactory(RequestFactoryInterface $factory)
{
$this->requestFactory = $factory;
return $this;
}
/**
* Set the URI template expander to use with the client
*
* @param UriTemplateInterface $uriTemplate URI template expander
*
* @return self
*/
public function setUriTemplate(UriTemplateInterface $uriTemplate)
{
$this->uriTemplate = $uriTemplate;
return $this;
}
/**
* Copy the cacert.pem file from the phar if it is not in the temp folder and validate the MD5 checksum
*
* @param bool $md5Check Set to false to not perform the MD5 validation
*
* @return string Returns the path to the extracted cacert
* @throws RuntimeException if the file cannot be copied or there is a MD5 mismatch
*/
public function preparePharCacert($md5Check = true)
{
$from = __DIR__ . '/Resources/cacert.pem';
$certFile = sys_get_temp_dir() . '/guzzle-cacert.pem';
if (!file_exists($certFile) && !copy($from, $certFile)) {
throw new RuntimeException("Could not copy {$from} to {$certFile}: " . var_export(error_get_last(), true));
} elseif ($md5Check) {
$actualMd5 = md5_file($certFile);
$expectedMd5 = trim(file_get_contents("{$from}.md5"));
if ($actualMd5 != $expectedMd5) {
throw new RuntimeException("{$certFile} MD5 mismatch: expected {$expectedMd5} but got {$actualMd5}");
}
}
return $certFile;
}
/**
* Expand a URI template while merging client config settings into the template variables
*
* @param string $template Template to expand
* @param array $variables Variables to inject
*
* @return string
*/
protected function expandTemplate($template, array $variables = null)
{
$expansionVars = $this->getConfig()->toArray();
if ($variables) {
$expansionVars = $variables + $expansionVars;
}
return $this->getUriTemplate()->expand($template, $expansionVars);
}
/**
* Get the URI template expander used by the client
*
* @return UriTemplateInterface
*/
protected function getUriTemplate()
{
if (!$this->uriTemplate) {
$this->uriTemplate = ParserRegistry::getInstance()->getParser('uri_template');
}
return $this->uriTemplate;
}
/**
* Send multiple requests in parallel
*
* @param array $requests Array of RequestInterface objects
*
* @return array Returns an array of Response objects
*/
protected function sendMultiple(array $requests)
{
$curlMulti = $this->getCurlMulti();
foreach ($requests as $request) {
$curlMulti->add($request);
}
$curlMulti->send();
/** @var $request RequestInterface */
$result = array();
foreach ($requests as $request) {
$result[] = $request->getResponse();
}
return $result;
}
/**
* Prepare a request to be sent from the Client by adding client specific behaviors and properties to the request.
*
* @param RequestInterface $request Request to prepare for the client
* @param array $options Options to apply to the request
*
* @return RequestInterface
*/
protected function prepareRequest(RequestInterface $request, array $options = array())
{
$request->setClient($this)->setEventDispatcher(clone $this->getEventDispatcher());
if ($curl = $this->config[self::CURL_OPTIONS]) {
$request->getCurlOptions()->overwriteWith(CurlHandle::parseCurlConfig($curl));
}
if ($params = $this->config[self::REQUEST_PARAMS]) {
Version::warn('request.params is deprecated. Use request.options to add default request options.');
$request->getParams()->overwriteWith($params);
}
if ($this->userAgent && !$request->hasHeader('User-Agent')) {
$request->setHeader('User-Agent', $this->userAgent);
}
if ($defaults = $this->config[self::REQUEST_OPTIONS]) {
$this->requestFactory->applyOptions($request, $defaults, RequestFactoryInterface::OPTIONS_AS_DEFAULTS);
}
if ($options) {
$this->requestFactory->applyOptions($request, $options);
}
$this->dispatch('client.create_request', array('client' => $this, 'request' => $request));
return $request;
}
/**
* Initializes SSL settings
*/
protected function initSsl()
{
if ('system' == ($authority = $this->config[self::SSL_CERT_AUTHORITY])) {
return;
}
if ($authority === null) {
$authority = true;
}
if ($authority === true && substr(__FILE__, 0, 7) == 'phar://') {
$authority = $this->preparePharCacert();
$that = $this;
$this->getEventDispatcher()->addListener('request.before_send', function ($event) use ($authority, $that) {
if ($authority == $event['request']->getCurlOptions()->get(CURLOPT_CAINFO)) {
$that->preparePharCacert(false);
}
});
}
$this->setSslVerification($authority);
}
/**
* @deprecated
*/
public function getDefaultHeaders()
{
Version::warn(__METHOD__ . ' is deprecated. Use the request.options array to retrieve default request options');
return $this->defaultHeaders;
}
/**
* @deprecated
*/
public function setDefaultHeaders($headers)
{
Version::warn(__METHOD__ . ' is deprecated. Use the request.options array to specify default request options');
if ($headers instanceof Collection) {
$this->defaultHeaders = $headers;
} elseif (is_array($headers)) {
$this->defaultHeaders = new Collection($headers);
} else {
throw new InvalidArgumentException('Headers must be an array or Collection');
}
return $this;
}
}
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