267 lines
7.0 KiB
PHP
267 lines
7.0 KiB
PHP
<?php
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/**
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* Session handler for persistent requests and default parameters
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*
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* @package Requests
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* @subpackage Session Handler
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*/
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/**
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* Session handler for persistent requests and default parameters
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*
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* Allows various options to be set as default values, and merges both the
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* options and URL properties together. A base URL can be set for all requests,
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* with all subrequests resolved from this. Base options can be set (including
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* a shared cookie jar), then overridden for individual requests.
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*
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* @package Requests
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* @subpackage Session Handler
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*/
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class Requests_Session {
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/**
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* Base URL for requests
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*
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* URLs will be made absolute using this as the base
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* @var string|null
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*/
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public $url = null;
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/**
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* Base headers for requests
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* @var array
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*/
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public $headers = array();
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/**
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* Base data for requests
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*
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* If both the base data and the per-request data are arrays, the data will
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* be merged before sending the request.
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*
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* @var array
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*/
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public $data = array();
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/**
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* Base options for requests
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*
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* The base options are merged with the per-request data for each request.
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* The only default option is a shared cookie jar between requests.
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*
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* Values here can also be set directly via properties on the Session
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* object, e.g. `$session->useragent = 'X';`
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*
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* @var array
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*/
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public $options = array();
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/**
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* Create a new session
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*
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* @param string|null $url Base URL for requests
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* @param array $headers Default headers for requests
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* @param array $data Default data for requests
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* @param array $options Default options for requests
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*/
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public function __construct($url = null, $headers = array(), $data = array(), $options = array()) {
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$this->url = $url;
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$this->headers = $headers;
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$this->data = $data;
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$this->options = $options;
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if (empty($this->options['cookies'])) {
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$this->options['cookies'] = new Requests_Cookie_Jar();
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}
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}
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/**
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* Get a property's value
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*
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* @param string $key Property key
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* @return mixed|null Property value, null if none found
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*/
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public function __get($key) {
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if (isset($this->options[$key])) {
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return $this->options[$key];
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}
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return null;
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}
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/**
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* Set a property's value
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*
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* @param string $key Property key
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* @param mixed $value Property value
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*/
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public function __set($key, $value) {
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$this->options[$key] = $value;
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}
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/**
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* Remove a property's value
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*
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* @param string $key Property key
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*/
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public function __isset($key) {
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return isset($this->options[$key]);
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}
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/**
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* Remove a property's value
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*
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* @param string $key Property key
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*/
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public function __unset($key) {
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if (isset($this->options[$key])) {
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unset($this->options[$key]);
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}
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}
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/**#@+
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* @see request()
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* @param string $url
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* @param array $headers
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* @param array $options
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* @return Requests_Response
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*/
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/**
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* Send a GET request
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*/
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public function get($url, $headers = array(), $options = array()) {
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return $this->request($url, $headers, null, Requests::GET, $options);
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}
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/**
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* Send a HEAD request
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*/
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public function head($url, $headers = array(), $options = array()) {
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return $this->request($url, $headers, null, Requests::HEAD, $options);
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}
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/**
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* Send a DELETE request
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*/
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public function delete($url, $headers = array(), $options = array()) {
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return $this->request($url, $headers, null, Requests::DELETE, $options);
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}
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/**#@-*/
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/**#@+
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* @see request()
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* @param string $url
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* @param array $headers
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* @param array $data
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* @param array $options
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* @return Requests_Response
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*/
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/**
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* Send a POST request
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*/
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public function post($url, $headers = array(), $data = array(), $options = array()) {
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return $this->request($url, $headers, $data, Requests::POST, $options);
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}
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/**
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* Send a PUT request
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*/
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public function put($url, $headers = array(), $data = array(), $options = array()) {
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return $this->request($url, $headers, $data, Requests::PUT, $options);
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}
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/**
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* Send a PATCH request
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*
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* Note: Unlike {@see post} and {@see put}, `$headers` is required, as the
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* specification recommends that should send an ETag
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*
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* @link https://tools.ietf.org/html/rfc5789
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*/
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public function patch($url, $headers, $data = array(), $options = array()) {
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return $this->request($url, $headers, $data, Requests::PATCH, $options);
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}
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/**#@-*/
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/**
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* Main interface for HTTP requests
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*
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* This method initiates a request and sends it via a transport before
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* parsing.
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*
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* @see Requests::request()
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*
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* @throws Requests_Exception On invalid URLs (`nonhttp`)
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*
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* @param string $url URL to request
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* @param array $headers Extra headers to send with the request
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* @param array|null $data Data to send either as a query string for GET/HEAD requests, or in the body for POST requests
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* @param string $type HTTP request type (use Requests constants)
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* @param array $options Options for the request (see {@see Requests::request})
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* @return Requests_Response
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*/
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public function request($url, $headers = array(), $data = array(), $type = Requests::GET, $options = array()) {
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$request = $this->merge_request(compact('url', 'headers', 'data', 'options'));
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return Requests::request($request['url'], $request['headers'], $request['data'], $type, $request['options']);
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}
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/**
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* Send multiple HTTP requests simultaneously
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*
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* @see Requests::request_multiple()
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*
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* @param array $requests Requests data (see {@see Requests::request_multiple})
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* @param array $options Global and default options (see {@see Requests::request})
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* @return array Responses (either Requests_Response or a Requests_Exception object)
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*/
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public function request_multiple($requests, $options = array()) {
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foreach ($requests as $key => $request) {
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$requests[$key] = $this->merge_request($request, false);
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}
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$options = array_merge($this->options, $options);
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// Disallow forcing the type, as that's a per request setting
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unset($options['type']);
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return Requests::request_multiple($requests, $options);
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}
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/**
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* Merge a request's data with the default data
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*
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* @param array $request Request data (same form as {@see request_multiple})
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* @param boolean $merge_options Should we merge options as well?
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* @return array Request data
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*/
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protected function merge_request($request, $merge_options = true) {
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if ($this->url !== null) {
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$request['url'] = Requests_IRI::absolutize($this->url, $request['url']);
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$request['url'] = $request['url']->uri;
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}
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if (empty($request['headers'])) {
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$request['headers'] = array();
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}
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$request['headers'] = array_merge($this->headers, $request['headers']);
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if (empty($request['data'])) {
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if (is_array($this->data)) {
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$request['data'] = $this->data;
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}
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}
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elseif (is_array($request['data']) && is_array($this->data)) {
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$request['data'] = array_merge($this->data, $request['data']);
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}
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if ($merge_options !== false) {
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$request['options'] = array_merge($this->options, $request['options']);
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// Disallow forcing the type, as that's a per request setting
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unset($request['options']['type']);
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}
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return $request;
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}
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}
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