summaryrefslogtreecommitdiffstats
path: root/etc/inc/priv.inc
blob: 9afaa781749a428fe154f5ce82573f30a99011fe (plain)
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
<?php
/* $Id$ */
/*
		Copyright (C) 2008 Shrew Soft Inc
		All rights reserved.

		Copyright (C) 2007, 2008 Scott Ullrich <sullrich@gmail.com>
		All rights reserved.

        Copyright (C) 2005-2006 Bill Marquette <bill.marquette@gmail.com>
        All rights reserved.

        Copyright (C) 2006 Paul Taylor <paultaylor@winn-dixie.com>.
        All rights reserved.

        Copyright (C) 2003-2006 Manuel Kasper <mk@neon1.net>.
        All rights reserved.

        Redistribution and use in source and binary forms, with or without
        modification, are permitted provided that the following conditions are met:

        1. Redistributions of source code must retain the above copyright notice,
           this list of conditions and the following disclaimer.

        2. Redistributions in binary form must reproduce the above copyright
           notice, this list of conditions and the following disclaimer in the
           documentation and/or other materials provided with the distribution.

        THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
        INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
        AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
        AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
        OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
        SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
        INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
        CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
        ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
        POSSIBILITY OF SUCH DAMAGE.

		DISABLE_PHP_LINT_CHECKING
*/

/*
	pfSense_MODULE:	auth
*/


/*
 * USER PRIVILEGE DEFINITIONS
 */

$priv_list['user-shell-access'] = array();
$priv_list['user-shell-access']['name']  = "User - Shell account access";
$priv_list['user-shell-access']['descr'] = "Indicates whether the user is able to login for ".
										   "example via SSH.";

$priv_list['user-copy-files'] = array();
$priv_list['user-copy-files']['name']  = "User - Copy files";
$priv_list['user-copy-files']['descr'] = "Indicates whether the user is allowed to copy files ".
										 "onto the {$g['product_name']} appliance via SCP/SFTP. ".
										 "If you are going to use this privilege, you must install ".
										 "scponly on the appliance (Hint: pkg_add -r scponly).";

sort_privs($priv_list);

function cmp_privkeys($a, $b) {
	/* user privs at the top */
	$auser = strncmp("user-", $a, 5);
	$buser = strncmp("user-", $b, 5);
	if($auser != $buser)
		return $auser - buser;

	/* name compare others */
	return strcasecmp($a, $b);
}

function sort_privs(& $privs) {

	uksort($privs, "cmp_privkeys");
}

function cmp_page_matches($page, & $matches, $fullwc = true) {

//	$dbg_matches = implode(",", $matches);
//	log_error("debug: checking page {$page} match with {$dbg_matches}");

	if (!is_array($matches))
		return false;

	/* skip any leading fwdslash */
	$test = strpos($page, "/");
	if ($test !== false && $test == 0)
		$page = substr($page, 1);

	/* look for a match */
	foreach ($matches as $match) {

		/* possibly ignore full wildcard match */
		if (!$fullwc && !strcmp($match ,"*"))
			continue;

		/* compare exact or wildcard match */
		$wcpos = strpos($match, "*");
		if ($wcpos === false)
			$result = strcmp($page, $match);
		else
			$result = strncmp($page, $match, $wcpos);

		if (!$result)
			return true;
	}

	return false;
}

function map_page_privname($page) {
	global $priv_list;

	foreach ($priv_list as $pname => $pdata) {
		if (strncmp($pname, "page-", 5))
			continue;
		$fullwc = false;
		if (!strcasecmp($page,"any")||!strcmp($page,"*"))
			$fullwc = true;
		if (cmp_page_matches($page, $pdata['match'], $fullwc))
			return $pname;
	}

	return false;
}

function get_user_privdesc(& $user) {
	global $priv_list;

	$privs = array();

	$user_privs = $user['priv'];
	if (!is_array($user_privs))
		$user_privs = array();

	$names = local_user_get_groups($user, true);

	foreach ($names as $name) {
		$group = getGroupEntry($name);
		$group_privs = $group['priv'];
		if (!is_array($group_privs))
			continue;
		foreach ($group_privs as $pname) {
			if (in_array($pname,$user_privs))
				continue;
			if (!$priv_list[$pname])
				continue;
			$priv = $priv_list[$pname];
			$priv['group'] = $group['name'];
			$privs[] = $priv;
		}
	}

	foreach ($user_privs as $pname)
		if($priv_list[$pname])
			$privs[] = $priv_list[$pname];

	return $privs;
}

function isAllowedPage($page) {
	global $_SESSION;

	$username = $_SESSION['Username'];
	if (!isset($username))
		return false;

	/* admin/root access check */
	$user = getUserEntry($username);
	if (isset($user))
		if (isset($user['uid']))
			if ($user['uid']==0)
				return true;

	/* user privelege access check */
	if (cmp_page_matches($page, $_SESSION['page-match']))
		return true;

	return false;
}

function getPrivPages(& $entry, & $allowed_pages) {
	global $priv_list;

	if (!is_array($entry['priv']))
		return;

	foreach ($entry['priv'] as $pname) {
		if (strncmp($pname, "page-", 5))
			continue;
		$priv = &$priv_list[$pname];
		if (!is_array($priv))
			continue;
		$matches = &$priv['match'];
		if (!is_array($matches))
			continue;
		foreach ($matches as $match)
			$allowed_pages[] = $match;
	}
}

function getAllowedPages($username) {
	global $config, $_SESSION;

	if (!function_exists("ldap_connect"))
		return;
	
	$allowed_pages = array();
	$allowed_groups = array();
	
	$ldapon = $_SESSION['ldapon'];

	// search for a local user by name
	$local_user = getUserEntry($username);

	// obtain local groups if we have a local user
	if ($local_user) {
		$allowed_groups = local_user_get_groups($local_user);
		getPrivPages($local_user, $allowed_pages);
	}

	// obtain ldap groups if we are in ldap mode
	if ($config['system']['webgui']['backend'] == "ldap" && !$local_user)
		$allowed_groups = ldap_get_groups($username);

	// obtain ldapother groups if we are in ldap mode
	if ($config['system']['webgui']['backend'] == "ldapother" && !$local_user)
		$allowed_groups = ldap_get_groups($username);

	// build a list of allowed pages
	if (is_array($config['system']['group']) && is_array($allowed_groups))
		foreach ($config['system']['group'] as $group)
			if (in_array($group['name'], $allowed_groups))
				getPrivPages($group, $allowed_pages);

//	$dbg_pages = implode(",", $allowed_pages);
//	$dbg_groups = implode(",", $allowed_groups);
//	log_error("debug: user {$username} groups = {$dbg_groups}");
//	log_error("debug: user {$username} pages = {$dbg_pages}");

	$_SESSION['page-match'] = $allowed_pages;

	return $allowed_pages;
}

?>
OpenPOWER on IntegriCloud