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<?php |
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namespace Openbuildings\Spiderling; |
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/** |
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* Use kohana requests to load urls, handle redirects |
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* |
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* @package Openbuildings\Spiderling |
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* @author Ivan Kerin |
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* @copyright (c) 2013 OpenBuildings Ltd. |
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* @license http://spdx.org/licenses/BSD-3-Clause |
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*/ |
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class Driver_Kohana_RequestFactory_Kohana implements Driver_Simple_RequestFactory { |
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protected $_request; |
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protected $_response; |
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protected $_max_redirects = 5; |
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protected $_previous_url; |
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public function __construct() |
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{ |
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$this->user_agent('Spiderling Kohana Driver'); |
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} |
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public function max_redirects($max_redirects = NULL) |
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{ |
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if ($max_redirects !== NULL) |
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{ |
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$this->_max_redirects = (int) $max_redirects; |
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return $this; |
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} |
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return $this->_max_redirects; |
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} |
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/** |
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* Getter / Setter for the user agent, used when performing the requests |
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* @param string $user_agent |
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* @return string|Driver_Simple_RequestFactory_HTTP |
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*/ |
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public function user_agent($user_agent = NULL) |
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{ |
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if ($user_agent !== NULL) |
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{ |
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\Request::$user_agent = $user_agent; |
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return $this; |
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} |
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return \Request::$user_agent; |
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} |
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public function current_url() |
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{ |
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return \URL::site($this->current_path(), TRUE); |
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} |
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public function previous_url() |
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{ |
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return $this->_previous_url; |
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} |
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public function current_path() |
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{ |
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if ( ! $this->_request) |
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return NULL; |
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return '/'.ltrim($this->_request->uri(), '/'); |
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} |
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public function request() |
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{ |
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return $this->_request; |
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} |
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public function response() |
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{ |
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return $this->_response; |
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} |
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public function execute($method, $url, array $post = array()) |
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{ |
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$redirects_count = 1; |
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$this->_request = new \Request($url); |
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$this->_request |
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->method($method) |
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->post($post) |
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->body(http_build_query($post)); |
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if ($this->_previous_url) { |
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$this->_request->referrer($this->_previous_url); |
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} |
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$this->_previous_url = $this->current_url().\URL::query($this->_request->query(), FALSE); |
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\Request::$initial = $this->_request; |
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$this->_response = $this->_request->execute(); |
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while (($this->_response->status() >= 300 AND $this->_response->status() < 400)) |
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{ |
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$redirects_count++; |
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if ($redirects_count >= $this->max_redirects()) |
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throw new Exception_Toomanyredirects( |
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'Maximum Number of redirects (:max_redirects) for url :url', |
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array( |
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':url' => $url, |
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':max_redirects' => $this->max_redirects(), |
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) |
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); |
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$url_parts = parse_url($this->_response->headers('location')); |
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$query = isset($url_parts['query']) ? $url_parts['query'] : ''; |
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parse_str($query, $query); |
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$_GET = $query; |
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$url = $url_parts['path']; |
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$this->_request = new \Request($url); |
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$this->_request->query($query); |
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\Request::$initial = $this->_request; |
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$this->_response = $this->_request->execute(); |
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} |
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return $this->_response->body(); |
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} |
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} |
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OpenBuildings /
spiderling
