Project

General

Profile

1
<?php
2

    
3
// $Id: class.admin.php 745 2008-03-11 18:40:41Z doc $
4

    
5
/*
6

    
7
 Website Baker Project <http://www.websitebaker.org/>
8
 Copyright (C) 2004-2008, Ryan Djurovich
9

    
10
 Website Baker is free software; you can redistribute it and/or modify
11
 it under the terms of the GNU General Public License as published by
12
 the Free Software Foundation; either version 2 of the License, or
13
 (at your option) any later version.
14

    
15
 Website Baker is distributed in the hope that it will be useful,
16
 but WITHOUT ANY WARRANTY; without even the implied warranty of
17
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
18
 GNU General Public License for more details.
19

    
20
 You should have received a copy of the GNU General Public License
21
 along with Website Baker; if not, write to the Free Software
22
 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
23

    
24
*/
25

    
26
/*
27

    
28
Admin class
29

    
30
This class will be used for every program that will be included
31
in the administration section of Website Baker.
32

    
33
*/
34

    
35
if(!defined('WB_URL')) {
36
	header('Location: ../index.php');
37
	exit(0);
38
}
39

    
40
require_once(WB_PATH.'/framework/class.wb.php');
41

    
42
// Include PHPLIB template class
43
require_once(WB_PATH."/include/phplib/template.inc");
44

    
45

    
46
// Get WB version
47
require_once(ADMIN_PATH.'/interface/version.php');
48

    
49
/*
50
Begin user changeable settings
51
*/
52

    
53

    
54
class admin extends wb {
55
	// Authenticate user then auto print the header
56
	function admin($section_name, $section_permission = 'start', $auto_header = true, $auto_auth = true) {
57
		$this->wb();
58
		global $MESSAGE;
59
		// Specify the current applications name
60
		$this->section_name = $section_name;
61
		$this->section_permission = $section_permission;
62
		// Authenticate the user for this application
63
		if($auto_auth == true) {
64
			// First check if the user is logged-in
65
			if($this->is_authenticated() == false) {
66
				header('Location: '.ADMIN_URL.'/login/index.php');
67
				exit(0);
68
			}
69
			// Now check if they are allowed in this section
70
			if($this->get_permission($section_permission) == false) {
71
				die($MESSAGE['ADMIN']['INSUFFICIENT_PRIVELLIGES']);
72
			}
73
		}
74
		
75
		// Check if the backend language is also the selected language. If not, send headers again.
76
		global $database;
77
		$get_user_language = @$database->query("SELECT language FROM ".TABLE_PREFIX.
78
			"users WHERE user_id = '" .(int) $this->get_user_id() ."'");
79
		$user_language = ($get_user_language) ? $get_user_language->fetchRow() : '';
80
		// prevent infinite loop if language file is not XX.php (e.g. DE_du.php)
81
		$user_language = substr($user_language[0],0,2);
82
		if((LANGUAGE != $user_language) && file_exists(WB_PATH .'/languages/' .$user_language .'.php')
83
				&& strpos($_SERVER['PHP_SELF'],'/admin/') !== false) {
84
			// check if page_id is set
85
			$page_id_url = (isset($_GET['page_id'])) ? '&page_id=' .(int) $_GET['page_id'] : '';
86
			$section_id_url = (isset($_GET['section_id'])) ? '&section_id=' .(int) $_GET['section_id'] : '';
87
			header('Location: '.$_SERVER['PHP_SELF'] .'?lang='.$user_language .$page_id_url .$section_id_url);
88
			exit();
89
		}
90

    
91
		// Auto header code
92
		if($auto_header == true) {
93
			$this->print_header();
94
		}
95
	}
96
	
97
	// Print the admin header
98
	function print_header($body_tags = '') {
99
		// Get vars from the language file
100
		global $MENU;
101
		global $MESSAGE;
102
		global $TEXT;
103
		// Connect to database and get website title
104
		global $database;
105
		$get_title = $database->query("SELECT value FROM ".TABLE_PREFIX."settings WHERE name = 'website_title'");
106
		$title = $get_title->fetchRow();
107
		$header_template = new Template(ADMIN_PATH."/interface");
108
		$header_template->set_file('page', 'header.html');
109
		$header_template->set_block('page', 'header_block', 'header');
110
		if(defined('DEFAULT_CHARSET')) {
111
			$charset=DEFAULT_CHARSET;
112
		} else {
113
			$charset='utf-8';
114
		}
115

    
116
		// work out the URL for the 'View menu' link in the WB backend
117
		// if the page_id is set, show this page otherwise show the root directory of WB
118
		$view_url = WB_URL;
119
		if(isset($_GET['page_id'])) {
120
			// extract page link from the database
121
			$result = @$database->query("SELECT link FROM " .TABLE_PREFIX ."pages WHERE page_id = '" .(int) addslashes($_GET['page_id']) ."'");
122
			$row = @$result->fetchRow();
123
			if($row) $view_url .= PAGES_DIRECTORY .$row['link']. PAGE_EXTENSION;
124
		}
125

    
126
		$header_template->set_var(	array(
127
													'SECTION_NAME' => $MENU[strtoupper($this->section_name)],
128
													'BODY_TAGS' => $body_tags,
129
													'WEBSITE_TITLE' => ($title['value']),
130
													'TEXT_ADMINISTRATION' => $TEXT['ADMINISTRATION'],
131
													'CHARSET' => $charset,
132
													'VERSION' => VERSION,
133
													'WB_URL' => WB_URL,
134
													'ADMIN_URL' => ADMIN_URL,
135
													'TITLE_START' => $MENU['START'],
136
													'TITLE_VIEW' => $MENU['VIEW'],
137
													'TITLE_HELP' => $MENU['HELP'],
138
													'TITLE_LOGOUT' =>  $MENU['LOGOUT'],
139
													'URL_VIEW' => $view_url,
140
													'URL_HELP' => 'http://www.websitebaker.org/help/'.WB_VERSION,
141
													'BACKEND_MODULE_CSS' => $this->register_backend_modfiles('css'),	// adds backend.css
142
													'BACKEND_MODULE_JS'  => $this->register_backend_modfiles('js')		// adds backend.js
143
													)
144
											);
145

    
146
		// Create the menu
147
		$menu = array(
148
					array(ADMIN_URL.'/pages/index.php', '', $MENU['PAGES'], 'pages', 1),
149
					array(ADMIN_URL.'/media/index.php', '', $MENU['MEDIA'], 'media', 1),
150
					array(ADMIN_URL.'/addons/index.php', '', $MENU['ADDONS'], 'addons', 1),
151
					array(ADMIN_URL.'/preferences/index.php', '', $MENU['PREFERENCES'], 'preferences', 0),
152
					array(ADMIN_URL.'/settings/index.php', '', $MENU['SETTINGS'], 'settings', 1),
153
					array(ADMIN_URL.'/admintools/index.php', '', $MENU['ADMINTOOLS'], 'admintools', 1),
154
					array(ADMIN_URL.'/access/index.php', '', $MENU['ACCESS'], 'access', 1)
155
					);
156
		$header_template->set_block('header_block', 'linkBlock', 'link');
157
		foreach($menu AS $menu_item) {
158
			$link = $menu_item[0];
159
			$target = $menu_item[1];
160
			$title = $menu_item[2];
161
			$permission_title = $menu_item[3];
162
			$required = $menu_item[4];
163
			$replace_old = array(ADMIN_URL, WB_URL, '/', 'index.php');
164
			if($required == false OR $this->get_link_permission($permission_title)) {
165
				$header_template->set_var('LINK', $link);
166
				$header_template->set_var('TARGET', $target);
167
				// If link is the current section apply a class name
168
				if($permission_title == strtolower($this->section_name)) {
169
					$header_template->set_var('CLASS', 'current');
170
				} else {
171
					$header_template->set_var('CLASS', '');
172
				}
173
				$header_template->set_var('TITLE', $title);
174
				// Print link
175
				$header_template->parse('link', 'linkBlock', true);
176
			}
177
		}
178
		$header_template->parse('header', 'header_block', false);
179
		$header_template->pparse('output', 'page');
180
	}
181
	
182
	// Print the admin footer
183
	function print_footer() {
184
		// include the required file for Javascript admin
185
    	if(file_exists(WB_PATH.'/modules/jsadmin/jsadmin_backend_include.php')){
186
      	@include(WB_PATH.'/modules/jsadmin/jsadmin_backend_include.php');
187
    	}
188
		$footer_template = new Template(ADMIN_PATH."/interface");
189
		$footer_template->set_file('page', 'footer.html');
190
		$footer_template->set_block('page', 'footer_block', 'header');
191
		$footer_template->parse('header', 'footer_block', false);
192
		$footer_template->pparse('output', 'page');
193
	}
194
	
195
	// Return a system permission
196
	function get_permission($name, $type = 'system') {
197
		// Append to permission type
198
		$type .= '_permissions';
199
		// Check if we have a section to check for
200
		if($name == 'start') {
201
			return true;
202
		} else {
203
			// Set system permissions var
204
			$system_permissions = $this->get_session('SYSTEM_PERMISSIONS');
205
			// Set module permissions var
206
			$module_permissions = $this->get_session('MODULE_PERMISSIONS');
207
			// Set template permissions var
208
			$template_permissions = $this->get_session('TEMPLATE_PERMISSIONS');
209
			// Return true if system perm = 1
210
			if(is_numeric(array_search($name, $$type))) {
211
				if($type == 'system_permissions') {
212
					return true;
213
				} else {
214
					return false;
215
				}
216
			} else {
217
				if($type == 'system_permissions') {
218
					return false;
219
				} else {
220
					return true;
221
				}
222
			}
223
		}
224
	}
225
		
226
	function get_user_details($user_id) {
227
		global $database;
228
		$query_user = "SELECT username,display_name FROM ".TABLE_PREFIX."users WHERE user_id = '$user_id'";
229
		$get_user = $database->query($query_user);
230
		if($get_user->numRows() != 0) {
231
			$user = $get_user->fetchRow();
232
		} else {
233
			$user['display_name'] = 'Unknown';
234
			$user['username'] = 'unknown';
235
		}
236
		return $user;
237
	}	
238
	
239
	function get_page_details($page_id) {
240
		global $database;
241
		$query = "SELECT page_id,page_title,modified_by,modified_when FROM ".TABLE_PREFIX."pages WHERE page_id = '$page_id'";
242
		$results = $database->query($query);
243
		if($database->is_error()) {
244
			$this->print_header();
245
			$this->print_error($database->get_error());
246
		}
247
		if($results->numRows() == 0) {
248
			$this->print_header();
249
			$this->print_error($MESSAGE['PAGES']['NOT_FOUND']);
250
		}
251
		$results_array = $results->fetchRow();
252
		return $results_array;
253
	}	
254
	
255
	/** Function get_page_permission takes either a numerical page_id,
256
	 * upon which it looks up the permissions in the database,
257
	 * or an array with keys admin_groups and admin_users  
258
	 */
259
	function get_page_permission($page,$action='admin') {
260
		if ($action!='viewing') $action='admin';
261
		$action_groups=$action.'_groups';
262
		$action_users=$action.'_users';
263
		if (is_array($page)) {
264
				$groups=$page[$action_groups];
265
				$users=$page[$action_users];
266
		} else {				
267
			global $database;
268
			$results = $database->query("SELECT $action_groups,$action_users FROM ".TABLE_PREFIX."pages WHERE page_id = '$page'");
269
			$result = $results->fetchRow();
270
			$groups = explode(',', str_replace('_', '', $result[$action_groups]));
271
			$users = explode(',', str_replace('_', '', $result[$action_users]));
272
		}
273

    
274
		$in_group = FALSE;
275
		foreach($this->get_groups_id() as $cur_gid){
276
		    if (in_array($cur_gid, $groups)) {
277
		        $in_group = TRUE;
278
		    }
279
		}
280
		if((!$in_group) AND !is_numeric(array_search($this->get_user_id(), $users))) {
281
			return false;
282
		}
283
		return true;
284
	}
285
		
286

    
287
	// Returns a system permission for a menu link
288
	function get_link_permission($title) {
289
		$title = str_replace('_blank', '', $title);
290
		$title = strtolower($title);
291
		// Set system permissions var
292
		$system_permissions = $this->get_session('SYSTEM_PERMISSIONS');
293
		// Set module permissions var
294
		$module_permissions = $this->get_session('MODULE_PERMISSIONS');
295
		if($title == 'start') {
296
			return true;
297
		} else {
298
			// Return true if system perm = 1
299
			if(is_numeric(array_search($title, $system_permissions))) {
300
				return true;
301
			} else {
302
				return false;
303
			}
304
		}
305
	}
306

    
307
	// Function to add optional module Javascript or CSS stylesheets into the <head> section of the backend
308
	function register_backend_modfiles($file_id="css") {
309
		// sanity check of parameter passed to the function
310
		$file_id = strtolower($file_id);
311
		if($file_id !== "css" && $file_id !== "javascript" && $file_id !== "js") { 
312
			return;
313
		}
314

    
315
		global $database;
316
		// define default baselink and filename for optional module javascript and stylesheet files
317
		$head_links = "";
318
		if($file_id == "css") {
319
      	$base_link = '<link href="'.WB_URL.'/modules/{MODULE_DIRECTORY}/backend.css"'; 
320
			$base_link.= 'rel="stylesheet" type="text/css" media="screen" />';
321
			$base_file = "backend.css";
322
		} else {
323
			$base_link = '<script type="text/javascript" src="'.WB_URL.'/modules/{MODULE_DIRECTORY}/backend.js"></script>';
324
			$base_file = "backend.js";
325
		}
326

    
327
		// check if backend.js or backend.css files needs to be included to the <head></head> section of the backend
328
		if(isset($_GET['tool'])) {
329
			// check if displayed page contains a installed admin tool
330
			$result = $database->query("SELECT * FROM " .TABLE_PREFIX ."addons 
331
				WHERE type = 'module' AND function = 'tool' AND directory = '".addslashes($_GET['tool'])."'");
332

    
333
			if($result->numRows()) {
334
				// check if admin tool directory contains a backend.js or backend.css file to include
335
				$tool = $result->fetchRow();
336
				if(file_exists(WB_PATH ."/modules/" .$tool['directory'] ."/$base_file")) {
337
        			// return link to the backend.js or backend.css file
338
					return str_replace("{MODULE_DIRECTORY}", $tool['directory'], $base_link);
339
				}
340
			}
341
		} elseif(isset($_GET['page_id'])) {
342
			// check if displayed page in the backend contains a page module
343
			$page_id = (int) addslashes($_GET['page_id']);
344

    
345
    		// gather information for all models embedded on actual page
346
			$query_modules = $database->query("SELECT module FROM " .TABLE_PREFIX ."sections 
347
				WHERE page_id=$page_id AND module<>'wysiwyg'");
348

    
349
    		while($row = $query_modules->fetchRow()) {
350
				// check if page module directory contains a backend.js or backend.css file
351
      		if(file_exists(WB_PATH ."/modules/" .$row['module'] ."/$base_file")) {
352
					// create link with backend.js or backend.css source for the current module
353
					$tmp_link = str_replace("{MODULE_DIRECTORY}", $row['module'], $base_link);
354
        			// ensure that backend.js or backend.css is only added once per module type
355
        			if(strpos($head_links, $tmp_link) === false) {
356
						$head_links .= $tmp_link ."\n";
357
					}
358
				}
359
    		}
360
    		// write out links with all external module javascript/CSS files, remove last line feed
361
			return rtrim($head_links);
362
		}
363
	}
364
}
365

    
366
?>
(2-2/13)