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