xref: /plugin/siteexport/inc/httpproxy.php (revision 3de90976383b701640583031205aaa4546f16475)
1<?php
2
3/**
4 * i-net software provides programming examples for illustration only,
5 * without warranty either expressed or implied, including, but not
6 * limited to, the implied warranties of merchantability and/or fitness
7 * for a particular purpose. This programming example assumes that you
8 * are familiar with the programming language being demonstrated and the
9 * tools used to create and debug procedures. i-net software support
10 * professionals can help explain the functionality of a particular
11 * procedure, but they will not modify these examples to provide added
12 * functionality or construct procedures to meet your specific needs.
13 * Copyright © i-net software 1998-2010
14 */
15
16/** ********************************************************************
17 * THIS FILE SHOULD NOT BE MODIFIED
18 ******************************************************************** */
19
20if(!defined('DOKU_INC')) die('meh');
21require_once( DOKU_INC . 'inc/HTTPClient.php');
22
23class HTTPProxy extends DokuHTTPClient {
24
25    var $debugClass = null;
26    var $setttings = null;
27
28    /**
29     * Constructor.
30     */
31    function __construct($debug, $settings){
32        global $conf;
33
34        // call parent constructor
35        $this->debugClass = $debug;
36        $this->settings = $settings;
37        parent::__construct();
38
39        $this->timeout = 60; //max. 25 sec
40        $this->headers['If-Modified-Since'] = gmdate('r', 0);
41        $this->status = -1;
42        $this->debug = true;
43
44		if ( $this->settings->cookie == null ) {
45			$this->_debug("Has to re-authenticate request.");
46			if ( !$this->authenticate() ) {
47				$this->_debug("Trying other Authentication (auth.php):", auth_setup() && $this->authenticate(true) ? 'authenticated' : 'not authenticated'); // Try again.
48			}
49
50			$this->_debug("Using Authentication:", array('user' => $this->user, 'password' => '*****'));
51
52		} else {
53			$this->cookies = $this->settings->cookie;
54		}
55
56		$this->headers['X-Real-Ip'] = clientIP(true);
57		$this->headers['X-Site-Exporter'] = getSecurityToken();
58		$this->headers['Accept-Encoding'] = $_SERVER['HTTP_ACCEPT_ENCODING'];
59		$this->headers['Accept-Charset'] = $_SERVER['HTTP_ACCEPT_CHARSET'];
60		$this->agent = $_SERVER['HTTP_USER_AGENT'];
61	}
62
63	/**
64	 * Authenticate using currently logged in user
65	 */
66	private function authenticate($secondAttempt=false) {
67
68		global $auth, $INPUT;
69
70		// Ok, this is evil. We read the login information of the current user and forward it to the HTTPClient
71		list($this->user, $sticky, $this->pass) = auth_getCookie();
72
73		// Logged in in second attempt is now in Session.
74		if ( $secondAttempt && !isset($this->user) && $INPUT->str('u') && $INPUT->str('p') ) {
75
76			// We hacked directly into the login mechanism which provides the login information without encryption via $INPUT
77			$this->user = $INPUT->str('u');
78			$this->pass = $INPUT->str('p');
79			$sticky = $INPUT->str('r');
80		} else {
81			$secret = auth_cookiesalt(!$sticky, true); //bind non-sticky to session
82			$this->pass = !empty($this->pass) ? $this->auth_decrypt($this->pass, $secret) : '';
83		}
84
85		return isset($this->user);
86	}
87
88	/**
89	 * Auth Decryption has changed from Weatherwax to Binky
90	 */
91	private function auth_decrypt($pass, $secret) {
92
93		if ( function_exists('auth_decrypt') ) {
94			// Binky
95			return auth_decrypt($pass, $secret);
96		} else if ( function_exists('PMA_blowfish_decrypt') ) {
97			// Weatherwax
98			return PMA_blowfish_decrypt($pass, $secret);
99		} else {
100			$this->debugClass->runtimeException("No decryption method found");
101		}
102	}
103
104	/**
105	 * Remeber HTTPClient Cookie after successfull authentication
106	 */
107	function sendRequest($url,$data='',$method='GET') {
108
109		$returnCode = parent::sendRequest($url,$data,$method);
110		if ( $this->settings->cookie == null ) {
111			$this->settings->cookie = $this->cookies;
112		}
113
114		return $returnCode;
115	}
116
117	 /**
118	 * print debug info to file if exists
119	 */
120	public function _debug($info,$var=null){
121
122		if ( !$this->debugClass ) {
123			return;
124		}
125
126		$this->debugClass->message("[HTTPClient] " . $info, $var, 1);
127	}
128}
129
130//Setup VIM: ex: et ts=4 enc=utf-8 :