<?php
namespace GuzzleHttp;
use GuzzleHttp\Cookie\CookieJar;
use GuzzleHttp\Exception\GuzzleException;
use GuzzleHttp\Exception\InvalidArgumentException;
use GuzzleHttp\Promise as P;
use GuzzleHttp\Promise\PromiseInterface;
use Psr\Http\Message\RequestInterface;
use Psr\Http\Message\ResponseInterface;
use Psr\Http\Message\UriInterface;
/**
* @final
*/
class Client implements ClientInterface, \Psr\Http\Client\ClientInterface
{
use ClientTrait;
/**
* @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.
* 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'])) {
$config['handler'] = HandlerStack::create();
} elseif (!\is_callable($config['handler'])) {
throw new InvalidArgumentException('handler must be a callable');
}
// Convert the base_uri to a UriInterface
if (isset($config['base_uri'])) {
$config['base_uri'] = Psr7\Utils::uriFor($config['base_uri']);
}
$this->configureDefaults($config);
}
/**
* @param string $method
* @param array $args
*
* @return PromiseInterface|ResponseInterface
*
* @deprecated Client::__call will be removed in guzzlehttp/guzzle:8.0.
*/
public function __call($method, $args)
{
if (\count($args) < 1) {
throw new InvalidArgumentException('Magic request methods require a URI and optional options array');
}
$uri = $args[0];
$opts = $args[1] ?? [];
return \substr($method, -5) === 'Async'
? $this->requestAsync(\substr($method, 0, -5), $uri, $opts)
: $this->request($method, $uri, $opts);
}
/**
* Asynchronously send an HTTP request.
*
* @param array $options Request options to apply to the given
* request and to the transfer. See \GuzzleHttp\RequestOptions.
*/
public function sendAsync(RequestInterface $request, array $options = []): PromiseInterface
{
// Merge the base URI into the request URI if needed.
$options = $this->prepareDefaults($options);
return $this->transfer(
$request->withUri($this->buildUri($request->getUri(), $options), $request->hasHeader('Host')),
$options
);
}
/**
* Send an HTTP request.
*
* @param array $options Request options to apply to the given
* request and to the transfer. See \GuzzleHttp\RequestOptions.
*
* @throws GuzzleException
*/
public function send(RequestInterface $request, array $options = []): ResponseInterface
{
$options[RequestOptions::SYNCHRONOUS] = true;
return $this->sendAsync($request, $options)->wait();
}
/**
* The HttpClient PSR (PSR-18) specify this method.
*
* {@inheritDoc}
*/
public function sendRequest(RequestInterface $request): ResponseInterface
{
$options[RequestOptions::SYNCHRONOUS] = true;
$options[RequestOptions::ALLOW_REDIRECTS] = false;
$options[RequestOptions::HTTP_ERRORS] = false;
return $this->sendAsync($request, $options)->wait();
}
/**
* Create and send an asynchronous HTTP request.
*
* Use an absolute path to override the base path of the client, or a
* relative path to append to the base path of the client. The URL can
* contain the query string as well. Use an array to provide a URL
* template and additional variables to use in the URL template expansion.
*
* @param string $method HTTP method
* @param string|UriInterface $uri URI object or string.
* @param array $options Request options to apply. See \GuzzleHttp\RequestOptions.
*/
public function requestAsync(string $method, $uri = '', array $options = []): PromiseInterface
{
$options = $this->prepareDefaults($options);
// Remove request modifying parameter because it can be done up-front.
$headers = $options['headers'] ?? [];
$body = $options['body'] ?? null;
$version = $options['version'] ?? '1.1';
// Merge the URI into the base URI.
$uri = $this->buildUri(Psr7\Utils::uriFor($uri), $options);
if (\is_array($body)) {
throw $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);
}
/**
* Create and send an HTTP request.
*
* Use an absolute path to override the base path of the client, or a
* relative path to append to the base path of the client. The URL can
* contain the query string as well.
*
* @param string $method HTTP method.
* @param string|UriInterface $uri URI object or string.
* @param array $options Request options to apply. See \GuzzleHttp\RequestOptions.
*
* @throws GuzzleException
*/
public function request(string $method, $uri = '', array $options = []): ResponseInterface
{
$options[RequestOptions::SYNCHRONOUS] = true;
return $this->requestAsync($method, $uri, $options)->wait();
}
/**
* Get a client configuration option.
*
* These options include default request options of the client, a "handler"
* (if utilized by the concrete client), and a "base_uri" if utilized by
* the concrete client.
*
* @param string|null $option The config option to retrieve.
*
* @return mixed
*
* @deprecated Client::getConfig will be removed in guzzlehttp/guzzle:8.0.
*/
public function getConfig(string $option = null)
{
return $option === null
? $this->config
: ($this->config[$option] ?? null);
}
private function buildUri(UriInterface $uri, array $config): UriInterface
{
if (isset($config['base_uri'])) {
$uri = Psr7\UriResolver::resolve(Psr7\Utils::uriFor($config['base_uri']), $uri);
}
if (isset($config['idn_conversion']) && ($config['idn_conversion'] !== false)) {
$idnOptions = ($config['idn_conversion'] === true) ? \IDNA_DEFAULT : $config['idn_conversion'];
$uri = Utils::idnUriConvert($uri, $idnOptions);
}
return $uri->getScheme() === '' && $uri->getHost() !== '' ? $uri->withScheme('http') : $uri;
}
/**
* Configures the default options for a client.
*/
private function configureDefaults(array $config): void
{
$defaults = [
'allow_redirects' => RedirectMiddleware::$defaultSettings,
'http_errors' => true,
'decode_content' => true,
'verify' => true,
'cookies' => false,
'idn_conversion' => false,
];
// Use the standard Linux HTTP_PROXY and HTTPS_PROXY if set.
// We can only trust the HTTP_PROXY environment variable in a CLI
// process due to the fact that PHP has no reliable mechanism to
// get environment variables that start with "HTTP_".
if (\PHP_SAPI === 'cli' && ($proxy = Utils::getenv('HTTP_PROXY'))) {
$defaults['proxy']['http'] = $proxy;
}
if ($proxy = Utils::getenv('HTTPS_PROXY')) {
$defaults['proxy']['https'] = $proxy;
}
if ($noProxy = Utils::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'])) {
$this->config['headers'] = ['User-Agent' => Utils::defaultUserAgent()];
} else {
// Add the User-Agent header if one was not already set.
foreach (\array_keys($this->config['headers']) as $name) {
if (\strtolower($name) === 'user-agent') {
return;
}
}
$this->config['headers']['User-Agent'] = Utils::defaultUserAgent();
}
}
/**
* Merges default options into the array.
*
* @param array $options Options to modify by reference
*/
private function prepareDefaults(array $options): array
{
$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) {
$defaults['_conditional'] = [];
unset($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 array $options See \GuzzleHttp\RequestOptions.
*/
private function transfer(RequestInterface $request, array $options): PromiseInterface
{
$request = $this->applyOptions($request, $options);
/** @var HandlerStack $handler */
$handler = $options['handler'];
try {
return P\Create::promiseFor($handler($request, $options));
} catch (\Exception $e) {
return P\Create::rejectionFor($e);
}
}
/**
* Applies the array of request options to a request.
*/
private function applyOptions(RequestInterface $request, array &$options): RequestInterface
{
$modify = [
'set_headers' => [],
];
if (isset($options['headers'])) {
if (array_keys($options['headers']) === range(0, count($options['headers']) - 1)) {
throw new InvalidArgumentException('The headers array must have header name as keys.');
}
$modify['set_headers'] = $options['headers'];
unset($options['headers']);
}
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'], '', '&');
unset($options['form_params']);
// Ensure that we don't have the header in different case and set the new value.
$options['_conditional'] = Psr7\Utils::caselessRemove(['Content-Type'], $options['_conditional']);
$options['_conditional']['Content-Type'] = 'application/x-www-form-urlencoded';
}
if (isset($options['multipart'])) {
$options['body'] = new Psr7\MultipartStream($options['multipart']);
unset($options['multipart']);
}
if (isset($options['json'])) {
$options['body'] = Utils::jsonEncode($options['json']);
unset($options['json']);
// Ensure that we don't have the header in different case and set the new value.
$options['_conditional'] = Psr7\Utils::caselessRemove(['Content-Type'], $options['_conditional']);
$options['_conditional']['Content-Type'] = 'application/json';
}
if (!empty($options['decode_content'])
&& $options['decode_content'] !== true
) {
// Ensure that we don't have the header in different case and set the new value.
$options['_conditional'] = Psr7\Utils::caselessRemove(['Accept-Encoding'], $options['_conditional']);
$modify['set_headers']['Accept-Encoding'] = $options['decode_content'];
}
if (isset($options['body'])) {
if (\is_array($options['body'])) {
throw $this->invalidBody();
}
$modify['body'] = Psr7\Utils::streamFor($options['body']);
unset($options['body']);
}
if (!empty($options['auth']) && \is_array($options['auth'])) {
$value = $options['auth'];
$type = isset($value[2]) ? \strtolower($value[2]) : 'basic';
switch ($type) {
case 'basic':
// Ensure that we don't have the header in different case and set the new value.
$modify['set_headers'] = Psr7\Utils::caselessRemove(['Authorization'], $modify['set_headers']);
$modify['set_headers']['Authorization'] = 'Basic '
.\base64_encode("$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;
case 'ntlm':
$options['curl'][\CURLOPT_HTTPAUTH] = \CURLAUTH_NTLM;
$options['curl'][\CURLOPT_USERPWD] = "$value[0]:$value[1]";
break;
}
}
if (isset($options['query'])) {
$value = $options['query'];
if (\is_array($value)) {
$value = \http_build_query($value, '', '&', \PHP_QUERY_RFC3986);
}
if (!\is_string($value)) {
throw new InvalidArgumentException('query must be a string or array');
}
$modify['query'] = $value;
unset($options['query']);
}
// Ensure that sink is not an invalid value.
if (isset($options['sink'])) {
// TODO: Add more sink validation?
if (\is_bool($options['sink'])) {
throw new InvalidArgumentException('sink must not be a boolean');
}
}
if (isset($options['version'])) {
$modify['version'] = $options['version'];
}
$request = Psr7\Utils::modifyRequest($request, $modify);
if ($request->getBody() instanceof Psr7\MultipartStream) {
// Use a multipart/form-data POST if a Content-Type is not set.
// Ensure that we don't have the header in different case and set the new value.
$options['_conditional'] = Psr7\Utils::caselessRemove(['Content-Type'], $options['_conditional']);
$options['_conditional']['Content-Type'] = 'multipart/form-data; boundary='
.$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;
}
}
$request = Psr7\Utils::modifyRequest($request, $modify);
// Don't pass this internal value along to middleware/handlers.
unset($options['_conditional']);
}
return $request;
}
/**
* Return an InvalidArgumentException with pre-set message.
*/
private function invalidBody(): InvalidArgumentException
{
return new InvalidArgumentException('Passing in the "body" request '
.'option as an array to send a request is not supported. '
.'Please use the "form_params" request option to send a '
.'application/x-www-form-urlencoded request, or the "multipart" '
.'request option to send a multipart/form-data request.');
}
}
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