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');
21if ( file_exists(DOKU_INC . 'inc/HTTPClient.php') ) {
22    require_once(DOKU_INC . 'inc/HTTPClient.php');
23    class _HTTPProxy extends DokuHTTPClient {}
24} else if ( class_exists( "\dokuwiki\HTTP\DokuHTTPClient", true ) ) {
25    class _HTTPProxy extends \dokuwiki\HTTP\DokuHTTPClient {}
26}
27
28class HTTPProxy extends _HTTPProxy {
29
30    public $debugClass = null;
31    public $settings = null;
32
33    /**
34     * Constructor.
35     * @param siteexport_functions $functions
36     */
37    public function __construct($functions) {
38        global $conf;
39
40        // The proxy should only be used if configured.
41        // Usually the proxy will allow connections away from the current server.
42        // This is what we do not want in most cases.
43        if ($functions->getConf('useProxy')) {
44            unset($conf['proxy']);
45        }
46
47        // call parent constructor
48        $this->debugClass = $functions->debug;
49        $this->settings = $functions->settings;
50        parent::__construct();
51
52        $this->timeout = 60; //max. 25 sec
53        $this->headers['If-Modified-Since'] = gmdate('r', 0);
54        $this->status = -1;
55        $this->debug = true;
56
57        if ($this->settings->cookie == null) {
58            $this->_debug("Has to re-authenticate request.");
59            if (!$this->authenticate()) {
60
61                $this->_debug("Trying other Authentication (auth.php):"); // Try again.
62                if (!(auth_setup() && $this->authenticate(true))) {
63                    $this->_debug("Trying other Authentication (config):", $functions->authenticate() && $this->authenticate(true) ? 'authenticated' : 'not authenticated'); // Try again.
64                } else {
65                    $this->_debug("Ok, using default auth.php"); // Try again.
66                }
67            }
68
69            $this->_debug("Using Authentication:", array('user' => $this->user, 'password' => '*****'));
70
71        } else {
72            $this->cookies = $this->settings->cookie;
73        }
74
75        $this->headers['X-Real-Ip'] = clientIP(true);
76        $this->headers['X-Site-Exporter'] = $functions->getSecurityToken();
77        $this->headers['Accept-Encoding'] = $_SERVER['HTTP_ACCEPT_ENCODING'];
78        $this->headers['Accept-Charset'] = $_SERVER['HTTP_ACCEPT_CHARSET'];
79        $this->agent = $_SERVER['HTTP_USER_AGENT'] . ' DokuWiki/SiteExport';
80    }
81
82    /**
83     * Authenticate using currently logged in user
84     */
85    private function authenticate($secondAttempt = false) {
86
87        global $auth, $INPUT;
88
89        // Ok, this is evil. We read the login information of the current user and forward it to the HTTPClient
90        list($this->user, $sticky, $this->pass) = auth_getCookie();
91
92        // Logged in in second attempt is now in Session.
93        if ($secondAttempt && !isset($this->user) && $INPUT->str('u') && $INPUT->str('p')) {
94
95            // We hacked directly into the login mechanism which provides the login information without encryption via $INPUT
96            $this->user = $INPUT->str('u');
97            $this->pass = $INPUT->str('p');
98        } else {
99            $secret = auth_cookiesalt(!$sticky, true); //bind non-sticky to session
100            $this->pass = !empty($this->pass) ? $this->auth_decrypt($this->pass, $secret) : '';
101        }
102
103        return isset($this->user);
104    }
105
106    /**
107     * Auth Decryption has changed from Weatherwax to Binky
108     */
109    private function auth_decrypt($pass, $secret) {
110
111        if (function_exists('auth_decrypt')) {
112            // Binky
113            return auth_decrypt($pass, $secret);
114        } else if (function_exists('PMA_blowfish_decrypt')) {
115            // Weatherwax
116            return PMA_blowfish_decrypt($pass, $secret);
117        } else {
118            $this->debugClass->runtimeException("No decryption method found");
119        }
120    }
121
122    /**
123     * Remeber HTTPClient Cookie after successfull authentication
124     */
125    public function sendRequest($url, $data = '', $method = 'GET') {
126
127        $returnCode = parent::sendRequest($url, $data, $method);
128        if ($this->settings->cookie == null) {
129            $this->settings->cookie = $this->cookies;
130        }
131
132        return $returnCode;
133    }
134
135    /**
136     * print debug info to file if exists
137     * @param string $info
138     * @param mixed  $var
139     */
140    public function _debug($info, $var = null) {
141
142        if (!$this->debugClass) {
143            return;
144        }
145
146        $this->debugClass->message("[HTTPClient] " . $info, $var, 1);
147    }
148
149    /**
150     * print debug info to file if exists
151     * @param string $info
152     * @param mixed  $var
153     */
154    protected function debug($info, $var = null) {
155        $this->_debug( $info, $var );
156    }
157}
158
159//Setup VIM: ex: et ts=4 enc=utf-8 :
160