aboutsummaryrefslogtreecommitdiffstats
path: root/Zotlabs/Storage/BasicAuth.php
blob: 38d984d19b4bd2b2aa69a08125ceb93164ead7eb (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
<?php

namespace Zotlabs\Storage;

use Sabre\DAV;
use Sabre\HTTP\RequestInterface;
use Sabre\HTTP\ResponseInterface;

/**
 * @brief Authentication backend class for DAV.
 *
 * This class also contains some data which is not necessary for authentication
 * like timezone settings.
 *
 * @extends Sabre\DAV\Auth\Backend\AbstractBasic
 *
 * @link http://github.com/friendica/red
 * @license http://opensource.org/licenses/mit-license.php The MIT License (MIT)
 */
class BasicAuth extends DAV\Auth\Backend\AbstractBasic {

	/**
	 * @brief This variable holds the currently logged-in channel_address.
	 *
	 * It is used for building path in filestorage/.
	 *
	 * @var string|null
	 */
	protected $channel_name = null;
	/**
	 * channel_id of the current channel of the logged-in account.
	 *
	 * @var int
	 */
	public $channel_id = 0;
	/**
	 * channel_hash of the current channel of the logged-in account.
	 *
	 * @var string
	 */
	public $channel_hash = '';
	/**
	 * Set in mod/cloud.php to observer_hash.
	 *
	 * @var string
	 */
	public $observer = '';
	/**
	 *
	 * @see Browser::set_writeable()
	 * @var \Sabre\DAV\Browser\Plugin
	 */
	public $browser;
	/**
	 * channel_id of the current visited path. Set in Directory::getDir().
	 *
	 * @var int
	 */
	public $owner_id = 0;
	/**
	 * channel_name of the current visited path. Set in Directory::getDir().
	 *
	 * Used for creating the path in cloud/
	 *
	 * @var string
	 */
	public $owner_nick = '';
	/**
	 * Timezone from the visiting channel's channel_timezone.
	 *
	 * Used in @ref RedBrowser
	 *
	 * @var string
	 */
	protected $timezone = '';


	public $module_disabled = false;


	/**
	 * @brief Validates a username and password.
	 *
	 *
	 * @see \Sabre\DAV\Auth\Backend\AbstractBasic::validateUserPass
	 * @param string $username
	 * @param string $password
	 * @return bool
	 */
	protected function validateUserPass($username, $password) {

		require_once('include/auth.php');
		$record = account_verify_password($username, $password);
		if($record && $record['account']) {
			if($record['channel'])
				$channel = $record['channel'];
			else {
				$r = q("SELECT * FROM channel WHERE channel_account_id = %d AND channel_id = %d LIMIT 1",
					intval($record['account']['account_id']),
					intval($record['account']['account_default_channel'])
				);
				if($r)
					$channel = $r[0];
			}
		}
		if($channel && $this->check_module_access($channel['channel_id'])) {
			return $this->setAuthenticated($channel);
		}

		if($this->module_disabled)
			$error = 'module not enabled for ' . $username;
		else
			$error = 'password failed for ' . $username;
		logger($error);
		log_failed_login($error);

		return false;
	}

	/**
	 * @brief Sets variables and session parameters after successfull authentication.
	 *
	 * @param array $r
	 *  Array with the values for the authenticated channel.
	 * @return bool
	 */
	protected function setAuthenticated($r) {
		$this->channel_name = $r['channel_address'];
		$this->channel_id = $r['channel_id'];
		$this->channel_hash = $this->observer = $r['channel_hash'];
		$_SESSION['uid'] = $r['channel_id'];
		$_SESSION['account_id'] = $r['channel_account_id'];
		$_SESSION['authenticated'] = true;
		return true;
	}

    /**
     * When this method is called, the backend must check if authentication was
     * successful.
     *
     * The returned value must be one of the following
     *
     * [true, "principals/username"]
     * [false, "reason for failure"]
     *
     * If authentication was successful, it's expected that the authentication
     * backend returns a so-called principal url.
     *
     * Examples of a principal url:
     *
     * principals/admin
     * principals/user1
     * principals/users/joe
     * principals/uid/123457
     *
     * If you don't use WebDAV ACL (RFC3744) we recommend that you simply
     * return a string such as:
     *
     * principals/users/[username]
     *
     * @param RequestInterface $request
     * @param ResponseInterface $response
     * @return array
     */
    function check(RequestInterface $request, ResponseInterface $response) {

		if(local_channel()) {
			this->setAuthenticated(\App::get_channel());
			return [ true, $this->principalPrefix . $this->channel_name ];
		}

        $auth = new \Sabre\HTTP\Auth\Basic(
            $this->realm,
            $request,
            $response
        );

        $userpass = $auth->getCredentials();
        if (!$userpass) {
            return [false, "No 'Authorization: Basic' header found. Either the client didn't send one, or the server is misconfigured"];
        }
        if (!$this->validateUserPass($userpass[0], $userpass[1])) {
            return [false, "Username or password was incorrect"];
        }
        return [true, $this->principalPrefix . $userpass[0]];

    }

	protected function check_module_access($channel_id) {
		if($channel_id && \App::$module === 'cdav') {
			$x = get_pconfig($channel_id,'cdav','enabled');
			if(! $x) {
				$this->module_disabled = true;
				return false;
			}
		}
		return true;
	}

	/**
	 * Sets the channel_name from the currently logged-in channel.
	 *
	 * @param string $name
	 *  The channel's name
	 */
	public function setCurrentUser($name) {
		$this->channel_name = $name;
	}
	/**
	 * Returns information about the currently logged-in channel.
	 *
	 * If nobody is currently logged in, this method should return null.
	 *
	 * @see \Sabre\DAV\Auth\Backend\AbstractBasic::getCurrentUser
	 * @return string|null
	 */
	public function getCurrentUser() {
		return $this->channel_name;
	}

	/**
	 * @brief Sets the timezone from the channel in BasicAuth.
	 *
	 * Set in mod/cloud.php if the channel has a timezone set.
	 *
	 * @param string $timezone
	 *  The channel's timezone.
	 * @return void
	 */
	public function setTimezone($timezone) {
		$this->timezone = $timezone;
	}
	/**
	 * @brief Returns the timezone.
	 *
	 * @return string
	 *  Return the channel's timezone.
	 */
	public function getTimezone() {
		return $this->timezone;
	}

	/**
	 * @brief Set browser plugin for SabreDAV.
	 *
	 * @see RedBrowser::set_writeable()
	 * @param \Sabre\DAV\Browser\Plugin $browser
	 */
	public function setBrowserPlugin($browser) {
		$this->browser = $browser;
	}

	/**
	 * @brief Prints out all BasicAuth variables to logger().
	 *
	 * @return void
	 */
	public function log() {
		logger('channel_name ' . $this->channel_name, LOGGER_DATA);
		logger('channel_id ' . $this->channel_id, LOGGER_DATA);
		logger('channel_hash ' . $this->channel_hash, LOGGER_DATA);
		logger('observer ' . $this->observer, LOGGER_DATA);
		logger('owner_id ' . $this->owner_id, LOGGER_DATA);
		logger('owner_nick ' . $this->owner_nick, LOGGER_DATA);
	}
}