aboutsummaryrefslogtreecommitdiffstats
path: root/include/security.php
blob: bc2c9f0bf814e563b4b47fb29ddd9d96530fafbf (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
<?php

function authenticate_success($user_record, $login_initial = false, $interactive = false) {

	$a = get_app();

	$_SESSION['uid'] = $user_record['uid'];
	$_SESSION['theme'] = $user_record['theme'];
	$_SESSION['authenticated'] = 1;
	$_SESSION['page_flags'] = $user_record['page-flags'];
	$_SESSION['my_url'] = $a->get_baseurl() . '/profile/' . $user_record['nickname'];
	$_SESSION['addr'] = $_SERVER['REMOTE_ADDR'];

	$a->user = $user_record;

	if($interactive) {
		if($a->user['login_date'] === '0000-00-00 00:00:00') {
			$_SESSION['return_url'] = 'profile_photo/new';
			$a->module = 'profile_photo';
			info( t("Welcome ") . $a->user['username'] . EOL);
			info( t('Please upload a profile photo.') . EOL);
		}
		else
			info( t("Welcome back ") . $a->user['username'] . EOL);
	}

	$member_since = strtotime($a->user['register_date']);
	if(time() < ($member_since + ( 60 * 60 * 24 * 14)))
		$_SESSION['new_member'] = true;
	else
		$_SESSION['new_member'] = false;
	if(strlen($a->user['timezone'])) {
		date_default_timezone_set($a->user['timezone']);
		$a->timezone = $a->user['timezone'];
	}

	$master_record = $a->user;	

	if((x($_SESSION,'submanage')) && intval($_SESSION['submanage'])) {
		$r = q("select * from user where uid = %d limit 1",
			intval($_SESSION['submanage'])
		);
		if(count($r))
			$master_record = $r[0];
	}

	$r = q("SELECT `uid`,`username`,`nickname` FROM `user` WHERE `password` = '%s' AND `email` = '%s'",
		dbesc($master_record['password']),
		dbesc($master_record['email'])
	);
	if($r && count($r))
		$a->identities = $r;
	else
		$a->identities = array();

	$r = q("select `user`.`uid`, `user`.`username`, `user`.`nickname` 
		from manage left join user on manage.mid = user.uid 
		where `manage`.`uid` = %d",
		intval($master_record['uid'])
	);
	if($r && count($r))
		$a->identities = array_merge($a->identities,$r);

	if($login_initial)
		logger('auth_identities: ' . print_r($a->identities,true), LOGGER_DEBUG);

	$r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `self` = 1 LIMIT 1",
		intval($_SESSION['uid']));
	if(count($r)) {
		$a->contact = $r[0];
		$a->cid = $r[0]['id'];
		$_SESSION['cid'] = $a->cid;
	}

	header('X-Account-Management-Status: active; name="' . $a->user['username'] . '"; id="' . $a->user['nickname'] .'"');

	if($login_initial) {
		$l = get_language();

		q("UPDATE `user` SET `login_date` = '%s', `language` = '%s' WHERE `uid` = %d LIMIT 1",
			dbesc(datetime_convert()),
			dbesc($l),
			intval($_SESSION['uid'])
		);

		call_hooks('logged_in', $a->user);

		if(($a->module !== 'home') && isset($_SESSION['return_url']))
			goaway($a->get_baseurl() . '/' . $_SESSION['return_url']);
	}

}



function can_write_wall(&$a,$owner) {

	static $verified = 0;

	if((! (local_user())) && (! (remote_user())))
		return false;

	$uid = local_user();

	if(($uid) && ($uid == $owner)) {
		return true;
	}

	if(remote_user()) {

		// user remembered decision and avoid a DB lookup for each and every display item
		// DO NOT use this function if there are going to be multiple owners

		if($verified === 2)
			return true;
		elseif($verified === 1)
			return false;
		else {
			$r = q("SELECT `contact`.*, `user`.`page-flags` FROM `contact` LEFT JOIN `user` on `user`.`uid` = `contact`.`uid` 
				WHERE `contact`.`uid` = %d AND `contact`.`id` = %d AND `contact`.`blocked` = 0 AND `contact`.`pending` = 0 
				AND `user`.`blockwall` = 0 AND `readonly` = 0  AND ( `contact`.`rel` IN ( %d , %d ) OR `user`.`page-flags` = %d ) LIMIT 1",
				intval($owner),
				intval(remote_user()),
				intval(CONTACT_IS_SHARING),
				intval(CONTACT_IS_FRIEND),
				intval(PAGE_COMMUNITY)
			);
			if(count($r)) {
				$verified = 2;
				return true;
			}
			else {
				$verified = 1;
			}
		}
	}

	return false;
}


function permissions_sql($owner_id,$remote_verified = false,$groups = null) {

	$local_user = local_user();
	$remote_user = remote_user();

	/**
	 * Construct permissions
	 *
	 * default permissions - anonymous user
	 */

	$sql = " AND allow_cid = '' 
			 AND allow_gid = '' 
			 AND deny_cid  = '' 
			 AND deny_gid  = '' 
	";

	/**
	 * Profile owner - everything is visible
	 */

	if(($local_user) && ($local_user == $owner_id)) {
		$sql = ''; 
	}

	/**
	 * Authenticated visitor. Unless pre-verified, 
	 * check that the contact belongs to this $owner_id
	 * and load the groups the visitor belongs to.
	 * If pre-verified, the caller is expected to have already
	 * done this and passed the groups into this function.
	 */

	elseif($remote_user) {

		if(! $remote_verified) {
			$r = q("SELECT id FROM contact WHERE id = %d AND uid = %d AND blocked = 0 LIMIT 1",
				intval($remote_user),
				intval($owner_id)
			);
			if(count($r)) {
				$remote_verified = true;
				$groups = init_groups_visitor($remote_user);
			}
		}
		if($remote_verified) {
		
			$gs = '<<>>'; // should be impossible to match

			if(is_array($groups) && count($groups)) {
				foreach($groups as $g)
					$gs .= '|<' . intval($g) . '>';
			} 

			$sql = sprintf(
				" AND ( allow_cid = '' OR allow_cid REGEXP '<%d>' ) 
				  AND ( deny_cid  = '' OR  NOT deny_cid REGEXP '<%d>' ) 
				  AND ( allow_gid = '' OR allow_gid REGEXP '%s' )
				  AND ( deny_gid  = '' OR NOT deny_gid REGEXP '%s') 
				",
				intval($remote_user),
				intval($remote_user),
				dbesc($gs),
				dbesc($gs)
			);
		}
	}
	return $sql;
}