<?php
namespace GuzzleHttp;
use GuzzleHttp\Cookie\CookieJar;
use GuzzleHttp\Promise;
use GuzzleHttp\Psr7;
use Psr\Http\Message\UriInterface;
use Psr\Http\Message\RequestInterface;
use Psr\Http\Message\ResponseInterface;
/**
* @method ResponseInterface get($uri, array $options = [])
* @method ResponseInterface head($uri, array $options = [])
* @method ResponseInterface put($uri, array $options = [])
* @method ResponseInterface post($uri, array $options = [])
* @method ResponseInterface patch($uri, array $options = [])
* @method ResponseInterface delete($uri, array $options = [])
* @method Promise\PromiseInterface getAsync($uri, array $options = [])
* @method Promise\PromiseInterface headAsync($uri, array $options = [])
* @method Promise\PromiseInterface putAsync($uri, array $options = [])
* @method Promise\PromiseInterface postAsync($uri, array $options = [])
* @method Promise\PromiseInterface patchAsync($uri, array $options = [])
* @method Promise\PromiseInterface deleteAsync($uri, array $options = [])
*/
class Client implements ClientInterface
{
/** @var array Default request options */
private $config;
/**
* Clients accept an array of constructor parameters.
*
* Here's an example of creating a client using a base_uri and an array of
* default request options to apply to each request:
*
* $client = new Client([
* 'base_uri' => 'http://www.foo.com/1.0/',
* 'timeout' => 0,
* 'allow_redirects' => false,
* 'proxy' => '192.168.16.1:10'
* ]);
*
* Client configuration settings include the following options:
*
* - handler: (callable) Function that transfers HTTP requests over the
* wire. The function is called with a Psr7\Http\Message\RequestInterface
* and array of transfer options, and must return a
* GuzzleHttp\Promise\PromiseInterface that is fulfilled with a
* Psr7\Http\Message\ResponseInterface on success. "handler" is a
* constructor only option that cannot be overridden in per/request
* options. If no handler is provided, a default handler will be created
* that enables all of the request options below by attaching all of the
* default middleware to the handler.
* - base_uri: (string|UriInterface) Base URI of the client that is merged
* into relative URIs. Can be a string or instance of UriInterface.
* - **: any request option
*
* @param array $config Client configuration settings.
*
* @see \GuzzleHttp\RequestOptions for a list of available request options.
*/
public function __construct(array $config = [])
{
if (!isset($config['handler'])) {
$config['handler'] = HandlerStack::create();
}
// Convert the base_uri to a UriInterface
if (isset($config['base_uri'])) {
$config['base_uri'] = Psr7\uri_for($config['base_uri']);
}
$this->configureDefaults($config);
}
public function __call($method, $args)
{
if (count($args) < 1) {
throw new \InvalidArgumentException('Magic request methods require a URI and optional options array');
}
$uri = $args[0];
$opts = isset($args[1]) ? $args[1] : [];
return substr($method, -5) === 'Async'
? $this->requestAsync(substr($method, 0, -5), $uri, $opts)
: $this->request($method, $uri, $opts);
}
public function sendAsync(RequestInterface $request, array $options = [])
{
// Merge the base URI into the request URI if needed.
$options = $this->prepareDefaults($options);
return $this->transfer(
$request->withUri($this->buildUri($request->getUri(), $options)),
$options
);
}
public function send(RequestInterface $request, array $options = [])
{
$options[RequestOptions::SYNCHRONOUS] = true;
return $this->sendAsync($request, $options)->wait();
}
public function requestAsync($method, $uri = null, array $options = [])
{
$options = $this->prepareDefaults($options);
// Remove request modifying parameter because it can be done up-front.
$headers = isset($options['headers']) ? $options['headers'] : [];
$body = isset($options['body']) ? $options['body'] : null;
$version = isset($options['version']) ? $options['version'] : '1.1';
// Merge the URI into the base URI.
$uri = $this->buildUri($uri, $options);
if (is_array($body)) {
$this->invalidBody();
}
$request = new Psr7\Request($method, $uri, $headers, $body, $version);
// Remove the option so that they are not doubly-applied.
unset($options['headers'], $options['body'], $options['version']);
return $this->transfer($request, $options);
}
public function request($method, $uri = null, array $options = [])
{
$options[RequestOptions::SYNCHRONOUS] = true;
return $this->requestAsync($method, $uri, $options)->wait();
}
public function getConfig($option = null)
{
return $option === null
? $this->config
: (isset($this->config[$option]) ? $this->config[$option] : null);
}
private function buildUri($uri, array $config)
{
if (!isset($config['base_uri'])) {
return $uri instanceof UriInterface ? $uri : new Psr7\Uri($uri);
}
return Psr7\Uri::resolve(Psr7\uri_for($config['base_uri']), $uri);
}
/**
* Configures the default options for a client.
*
* @param array $config
*/
private function configureDefaults(array $config)
{
$defaults = [
'allow_redirects' => RedirectMiddleware::$defaultSettings,
'http_errors' => true,
'decode_content' => true,
'verify' => true,
'cookies' => false
];
// Use the standard Linux HTTP_PROXY and HTTPS_PROXY if set
if ($proxy = getenv('HTTP_PROXY')) {
$defaults['proxy']['http'] = $proxy;
}
if ($proxy = getenv('HTTPS_PROXY')) {
$defaults['proxy']['https'] = $proxy;
}
if ($noProxy = getenv('NO_PROXY')) {
$cleanedNoProxy = str_replace(' ', '', $noProxy);
$defaults['proxy']['no'] = explode(',', $cleanedNoProxy);
}
$this->config = $config + $defaults;
if (!empty($config['cookies']) && $config['cookies'] === true) {
$this->config['cookies'] = new CookieJar();
}
// Add the default user-agent header.
if (!isset($this->config['headers'])) {
$this->config['headers'] = ['User-Agent' => default_user_agent()];
} else {
// Add the User-Agent header if one was not already set.
foreach (array_keys($this->config['headers']) as $name) {
if (strtolower($name) === 'user-agent') {
return;
}
}
$this->config['headers']['User-Agent'] = default_user_agent();
}
}
/**
* Merges default options into the array.
*
* @param array $options Options to modify by reference
*
* @return array
*/
private function prepareDefaults($options)
{
$defaults = $this->config;
if (!empty($defaults['headers'])) {
// Default headers are only added if they are not present.
$defaults['_conditional'] = $defaults['headers'];
unset($defaults['headers']);
}
// Special handling for headers is required as they are added as
// conditional headers and as headers passed to a request ctor.
if (array_key_exists('headers', $options)) {
// Allows default headers to be unset.
if ($options['headers'] === null) {
$defaults['_conditional'] = null;
unset($options['headers']);
} elseif (!is_array($options['headers'])) {
throw new \InvalidArgumentException('headers must be an array');
}
}
// Shallow merge defaults underneath options.
$result = $options + $defaults;
// Remove null values.
foreach ($result as $k => $v) {
if ($v === null) {
unset($result[$k]);
}
}
return $result;
}
/**
* Transfers the given request and applies request options.
*
* The URI of the request is not modified and the request options are used
* as-is without merging in default options.
*
* @param RequestInterface $request
* @param array $options
*
* @return Promise\PromiseInterface
*/
private function transfer(RequestInterface $request, array $options)
{
// save_to -> sink
if (isset($options['save_to'])) {
$options['sink'] = $options['save_to'];
unset($options['save_to']);
}
// exceptions -> http_error
if (isset($options['exceptions'])) {
$options['http_errors'] = $options['exceptions'];
unset($options['exceptions']);
}
$request = $this->applyOptions($request, $options);
$handler = $options['handler'];
try {
return Promise\promise_for($handler($request, $options));
} catch (\Exception $e) {
return Promise\rejection_for($e);
}
}
/**
* Applies the array of request options to a request.
*
* @param RequestInterface $request
* @param array $options
*
* @return RequestInterface
*/
private function applyOptions(RequestInterface $request, array &$options)
{
$modify = [];
if (isset($options['form_params'])) {
if (isset($options['multipart'])) {
throw new \InvalidArgumentException('You cannot use '
. 'form_params and multipart at the same time. Use the '
. 'form_params option if you want to send application/'
. 'x-www-form-urlencoded requests, and the multipart '
. 'option to send multipart/form-data requests.');
}
$options['body'] = http_build_query($options['form_params'], null, '&');
unset($options['form_params']);
$options['_conditional']['Content-Type'] = 'application/x-www-form-urlencoded';
}
if (isset($options['multipart'])) {
$elements = $options['multipart'];
unset($options['multipart']);
$options['body'] = new Psr7\MultipartStream($elements);
}
if (!empty($options['decode_content'])
&& $options['decode_content'] !== true
) {
$modify['set_headers']['Accept-Encoding'] = $options['decode_content'];
}
if (isset($options['headers'])) {
if (isset($modify['set_headers'])) {
$modify['set_headers'] = $options['headers'] + $modify['set_headers'];
} else {
$modify['set_headers'] = $options['headers'];
}
unset($options['headers']);
}
if (isset($options['body'])) {
if (is_array($options['body'])) {
$this->invalidBody();
}
$modify['body'] = Psr7\stream_for($options['body']);
unset($options['body']);
}
if (!empty($options['auth'])) {
$value = $options['auth'];
$type = is_array($value)
? (isset($value[2]) ? strtolower($value[2]) : 'basic')
: $value;
$config['auth'] = $value;
switch (strtolower($type)) {
case 'basic':
$modify['set_headers']['Authorization'] = 'Basic '
. base64_encode("$value[0]:$value[1]");
break;
case 'digest':
// @todo: Do not rely on curl
$options['curl'][CURLOPT_HTTPAUTH] = CURLAUTH_DIGEST;
$options['curl'][CURLOPT_USERPWD] = "$value[0]:$value[1]";
break;
}
}
if (isset($options['query'])) {
$value = $options['query'];
if (is_array($value)) {
$value = http_build_query($value, null, '&', PHP_QUERY_RFC3986);
}
if (!is_string($value)) {
throw new \InvalidArgumentException('query must be a string or array');
}
$modify['query'] = $value;
unset($options['query']);
}
if (isset($options['json'])) {
$modify['body'] = Psr7\stream_for(json_encode($options['json']));
$options['_conditional']['Content-Type'] = 'application/json';
unset($options['json']);
}
$request = Psr7\modify_request($request, $modify);
if ($request->getBody() instanceof Psr7\MultipartStream) {
// Use a multipart/form-data POST if a Content-Type is not set.
$options['_conditional']['Content-Type'] = 'multipart/form-data; boundary='
. $request->getBody()->getBoundary();
}
// Merge in conditional headers if they are not present.
if (isset($options['_conditional'])) {
// Build up the changes so it's in a single clone of the message.
$modify = [];
foreach ($options['_conditional'] as $k => $v) {
if (!$request->hasHeader($k)) {
$modify['set_headers'][$k] = $v;
}
}
$request = Psr7\modify_request($request, $modify);
// Don't pass this internal value along to middleware/handlers.
unset($options['_conditional']);
}
return $request;
}
private function invalidBody()
{
throw new \InvalidArgumentException('Passing in the "body" request '
. 'option as an array to send a POST request has been deprecated. '
. 'Please use the "form_params" request option to send a '
. 'application/x-www-form-urlencoded request, or a the "multipart" '
. 'request option to send a multipart/form-data request.');
}
}
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