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/wp-includes/Requests/ -> Session.php (source)

   1  <?php
   2  /**
   3   * Session handler for persistent requests and default parameters
   4   *
   5   * @package Requests
   6   * @subpackage Session Handler
   7   */
   8  
   9  /**
  10   * Session handler for persistent requests and default parameters
  11   *
  12   * Allows various options to be set as default values, and merges both the
  13   * options and URL properties together. A base URL can be set for all requests,
  14   * with all subrequests resolved from this. Base options can be set (including
  15   * a shared cookie jar), then overridden for individual requests.
  16   *
  17   * @package Requests
  18   * @subpackage Session Handler
  19   */
  20  class Requests_Session {
  21      /**
  22       * Base URL for requests
  23       *
  24       * URLs will be made absolute using this as the base
  25       *
  26       * @var string|null
  27       */
  28      public $url = null;
  29  
  30      /**
  31       * Base headers for requests
  32       *
  33       * @var array
  34       */
  35      public $headers = array();
  36  
  37      /**
  38       * Base data for requests
  39       *
  40       * If both the base data and the per-request data are arrays, the data will
  41       * be merged before sending the request.
  42       *
  43       * @var array
  44       */
  45      public $data = array();
  46  
  47      /**
  48       * Base options for requests
  49       *
  50       * The base options are merged with the per-request data for each request.
  51       * The only default option is a shared cookie jar between requests.
  52       *
  53       * Values here can also be set directly via properties on the Session
  54       * object, e.g. `$session->useragent = 'X';`
  55       *
  56       * @var array
  57       */
  58      public $options = array();
  59  
  60      /**
  61       * Create a new session
  62       *
  63       * @param string|null $url Base URL for requests
  64       * @param array $headers Default headers for requests
  65       * @param array $data Default data for requests
  66       * @param array $options Default options for requests
  67       */
  68  	public function __construct($url = null, $headers = array(), $data = array(), $options = array()) {
  69          $this->url     = $url;
  70          $this->headers = $headers;
  71          $this->data    = $data;
  72          $this->options = $options;
  73  
  74          if (empty($this->options['cookies'])) {
  75              $this->options['cookies'] = new Requests_Cookie_Jar();
  76          }
  77      }
  78  
  79      /**
  80       * Get a property's value
  81       *
  82       * @param string $key Property key
  83       * @return mixed|null Property value, null if none found
  84       */
  85  	public function __get($key) {
  86          if (isset($this->options[$key])) {
  87              return $this->options[$key];
  88          }
  89  
  90          return null;
  91      }
  92  
  93      /**
  94       * Set a property's value
  95       *
  96       * @param string $key Property key
  97       * @param mixed $value Property value
  98       */
  99  	public function __set($key, $value) {
 100          $this->options[$key] = $value;
 101      }
 102  
 103      /**
 104       * Remove a property's value
 105       *
 106       * @param string $key Property key
 107       */
 108  	public function __isset($key) {
 109          return isset($this->options[$key]);
 110      }
 111  
 112      /**
 113       * Remove a property's value
 114       *
 115       * @param string $key Property key
 116       */
 117  	public function __unset($key) {
 118          if (isset($this->options[$key])) {
 119              unset($this->options[$key]);
 120          }
 121      }
 122  
 123      /**#@+
 124       * @see request()
 125       * @param string $url
 126       * @param array $headers
 127       * @param array $options
 128       * @return Requests_Response
 129       */
 130      /**
 131       * Send a GET request
 132       */
 133  	public function get($url, $headers = array(), $options = array()) {
 134          return $this->request($url, $headers, null, Requests::GET, $options);
 135      }
 136  
 137      /**
 138       * Send a HEAD request
 139       */
 140  	public function head($url, $headers = array(), $options = array()) {
 141          return $this->request($url, $headers, null, Requests::HEAD, $options);
 142      }
 143  
 144      /**
 145       * Send a DELETE request
 146       */
 147  	public function delete($url, $headers = array(), $options = array()) {
 148          return $this->request($url, $headers, null, Requests::DELETE, $options);
 149      }
 150      /**#@-*/
 151  
 152      /**#@+
 153       * @see request()
 154       * @param string $url
 155       * @param array $headers
 156       * @param array $data
 157       * @param array $options
 158       * @return Requests_Response
 159       */
 160      /**
 161       * Send a POST request
 162       */
 163  	public function post($url, $headers = array(), $data = array(), $options = array()) {
 164          return $this->request($url, $headers, $data, Requests::POST, $options);
 165      }
 166  
 167      /**
 168       * Send a PUT request
 169       */
 170  	public function put($url, $headers = array(), $data = array(), $options = array()) {
 171          return $this->request($url, $headers, $data, Requests::PUT, $options);
 172      }
 173  
 174      /**
 175       * Send a PATCH request
 176       *
 177       * Note: Unlike {@see post} and {@see put}, `$headers` is required, as the
 178       * specification recommends that should send an ETag
 179       *
 180       * @link https://tools.ietf.org/html/rfc5789
 181       */
 182  	public function patch($url, $headers, $data = array(), $options = array()) {
 183          return $this->request($url, $headers, $data, Requests::PATCH, $options);
 184      }
 185      /**#@-*/
 186  
 187      /**
 188       * Main interface for HTTP requests
 189       *
 190       * This method initiates a request and sends it via a transport before
 191       * parsing.
 192       *
 193       * @see Requests::request()
 194       *
 195       * @throws Requests_Exception On invalid URLs (`nonhttp`)
 196       *
 197       * @param string $url URL to request
 198       * @param array $headers Extra headers to send with the request
 199       * @param array|null $data Data to send either as a query string for GET/HEAD requests, or in the body for POST requests
 200       * @param string $type HTTP request type (use Requests constants)
 201       * @param array $options Options for the request (see {@see Requests::request})
 202       * @return Requests_Response
 203       */
 204  	public function request($url, $headers = array(), $data = array(), $type = Requests::GET, $options = array()) {
 205          $request = $this->merge_request(compact('url', 'headers', 'data', 'options'));
 206  
 207          return Requests::request($request['url'], $request['headers'], $request['data'], $type, $request['options']);
 208      }
 209  
 210      /**
 211       * Send multiple HTTP requests simultaneously
 212       *
 213       * @see Requests::request_multiple()
 214       *
 215       * @param array $requests Requests data (see {@see Requests::request_multiple})
 216       * @param array $options Global and default options (see {@see Requests::request})
 217       * @return array Responses (either Requests_Response or a Requests_Exception object)
 218       */
 219  	public function request_multiple($requests, $options = array()) {
 220          foreach ($requests as $key => $request) {
 221              $requests[$key] = $this->merge_request($request, false);
 222          }
 223  
 224          $options = array_merge($this->options, $options);
 225  
 226          // Disallow forcing the type, as that's a per request setting
 227          unset($options['type']);
 228  
 229          return Requests::request_multiple($requests, $options);
 230      }
 231  
 232      /**
 233       * Merge a request's data with the default data
 234       *
 235       * @param array $request Request data (same form as {@see request_multiple})
 236       * @param boolean $merge_options Should we merge options as well?
 237       * @return array Request data
 238       */
 239  	protected function merge_request($request, $merge_options = true) {
 240          if ($this->url !== null) {
 241              $request['url'] = Requests_IRI::absolutize($this->url, $request['url']);
 242              $request['url'] = $request['url']->uri;
 243          }
 244  
 245          if (empty($request['headers'])) {
 246              $request['headers'] = array();
 247          }
 248          $request['headers'] = array_merge($this->headers, $request['headers']);
 249  
 250          if (empty($request['data'])) {
 251              if (is_array($this->data)) {
 252                  $request['data'] = $this->data;
 253              }
 254          }
 255          elseif (is_array($request['data']) && is_array($this->data)) {
 256              $request['data'] = array_merge($this->data, $request['data']);
 257          }
 258  
 259          if ($merge_options !== false) {
 260              $request['options'] = array_merge($this->options, $request['options']);
 261  
 262              // Disallow forcing the type, as that's a per request setting
 263              unset($request['options']['type']);
 264          }
 265  
 266          return $request;
 267      }
 268  }


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