3499f99f |
1 | <?php |
2 | |
3 | /** |
4 | * file_prefs.php |
5 | * |
6 | * Copyright (c) 1999-2002 The SquirrelMail Project Team |
7 | * Licensed under the GNU GPL. For full terms see the file COPYING. |
8 | * |
9 | * This contains functions for manipulating user preferences in files |
10 | * |
11 | * $Id$ |
12 | */ |
13 | |
3499f99f |
14 | /** |
15 | * Check the preferences into the session cache. |
16 | */ |
17 | function cachePrefValues($data_dir, $username) { |
18 | global $prefs_are_cached, $prefs_cache; |
19 | |
20 | if ( isset($prefs_are_cached) && $prefs_are_cached) { |
21 | return; |
22 | } |
23 | |
9eb0fbd4 |
24 | sqsession_unregister('prefs_cache'); |
25 | sqsession_unregister('prefs_are_cached'); |
3499f99f |
26 | |
27 | /* Calculate the filename for the user's preference file */ |
28 | $filename = getHashedFile($username, $data_dir, "$username.pref"); |
29 | |
30 | /* A call to checkForPrefs here should take eliminate the need for */ |
31 | /* this to be called throughout the rest of the SquirrelMail code. */ |
32 | checkForPrefs($data_dir, $username, $filename); |
33 | |
34 | /* Make sure that the preference file now DOES exist. */ |
35 | if (!file_exists($filename)) { |
bd9c880b |
36 | include_once(SM_PATH . 'functions/display_messages.php'); |
9be8198d |
37 | logout_error( sprintf( _("Preference file, %s, does not exist. Log out, and log back in to create a default preference file."), $filename) ); |
3499f99f |
38 | exit; |
39 | } |
40 | |
35b5fa13 |
41 | /* Open the file, or else display an error to the user. */ |
42 | if(!$file = @fopen($filename, 'r')) |
43 | { |
bd9c880b |
44 | include_once(SM_PATH . 'functions/display_messages.php'); |
35b5fa13 |
45 | logout_error( sprintf( _("Preference file, %s, could not be opened. Contact your system administrator to resolve this issue."), $filename) ); |
46 | exit; |
47 | } |
3499f99f |
48 | |
49 | /* Read in the preferences. */ |
50 | $highlight_num = 0; |
51 | while (! feof($file)) { |
52 | $pref = trim(fgets($file, 1024)); |
53 | $equalsAt = strpos($pref, '='); |
54 | if ($equalsAt > 0) { |
55 | $key = substr($pref, 0, $equalsAt); |
56 | $value = substr($pref, $equalsAt + 1); |
57 | if (substr($key, 0, 9) == 'highlight') { |
58 | $key = 'highlight' . $highlight_num; |
59 | $highlight_num ++; |
60 | } |
61 | |
62 | if ($value != '') { |
63 | $prefs_cache[$key] = $value; |
64 | } |
65 | } |
66 | } |
67 | fclose($file); |
68 | |
69 | $prefs_are_cached = TRUE; |
70 | |
9eb0fbd4 |
71 | sqsession_register($prefs_cache, 'prefs_cache'); |
72 | sqsession_register($prefs_are_cached, 'prefs_are_cached'); |
3499f99f |
73 | } |
74 | |
75 | /** |
76 | * Return the value for the prefernce given by $string. |
77 | */ |
78 | function getPref($data_dir, $username, $string, $default = '') { |
79 | global $prefs_cache; |
397a9d7b |
80 | |
be6f5c46 |
81 | $result = do_hook_function('get_pref_override',array($username,$string)); |
82 | if (!$result) { |
83 | cachePrefValues($data_dir, $username); |
84 | if (isset($prefs_cache[$string])) { |
85 | $result = $prefs_cache[$string]; |
86 | } else { |
87 | $result = do_hook_function('get_pref', array($username,$string)); |
88 | if (!$result) { |
89 | $result = $default; |
90 | } |
91 | } |
3499f99f |
92 | } |
3499f99f |
93 | return ($result); |
94 | } |
95 | |
96 | /** |
97 | * Save the preferences for this user. |
98 | */ |
99 | function savePrefValues($data_dir, $username) { |
100 | global $prefs_cache; |
101 | |
102 | $filename = getHashedFile($username, $data_dir, "$username.pref"); |
103 | |
35b5fa13 |
104 | /* Open the file for writing, or else display an error to the user. */ |
be6f5c46 |
105 | if(!$file = @fopen($filename.'.tmp', 'w')) |
35b5fa13 |
106 | { |
bd9c880b |
107 | include_once(SM_PATH . 'functions/display_messages.php'); |
be6f5c46 |
108 | logout_error( sprintf( _("Preference file, %s, could not be opened. Contact your system administrator to resolve this issue."), $filename.'.tmp') ); |
35b5fa13 |
109 | exit; |
110 | } |
3499f99f |
111 | foreach ($prefs_cache as $Key => $Value) { |
112 | if (isset($Value)) { |
dabef6fd |
113 | $tmpwrite = @fwrite($file, $Key . '=' . $Value . "\n"); |
114 | if ($tmpwrite == -1) { |
115 | logout_error( sprintf( _("Preference file, %s, could not be written. Contact your system administrator to resolve this issue.") , $filename . '.tmp') ); |
116 | exit; |
117 | } |
3499f99f |
118 | } |
119 | } |
120 | fclose($file); |
dabef6fd |
121 | @copy($filename . '.tmp',$filename); |
122 | @unlink($filename . '.tmp'); |
3499f99f |
123 | chmod($filename, 0600); |
124 | } |
125 | |
126 | /** |
127 | * Remove a preference for the current user. |
128 | */ |
129 | function removePref($data_dir, $username, $string) { |
130 | global $prefs_cache; |
131 | |
132 | cachePrefValues($data_dir, $username); |
133 | |
134 | if (isset($prefs_cache[$string])) { |
135 | unset($prefs_cache[$string]); |
136 | } |
137 | |
138 | savePrefValues($data_dir, $username); |
139 | } |
140 | |
141 | /** |
142 | * Set a there preference $string to $value. |
143 | */ |
144 | function setPref($data_dir, $username, $string, $value) { |
145 | global $prefs_cache; |
146 | |
147 | cachePrefValues($data_dir, $username); |
148 | if (isset($prefs_cache[$string]) && ($prefs_cache[$string] == $value)) { |
149 | return; |
150 | } |
151 | |
152 | if ($value === '') { |
153 | removePref($data_dir, $username, $string); |
154 | return; |
155 | } |
156 | |
157 | $prefs_cache[$string] = $value; |
158 | savePrefValues($data_dir, $username); |
159 | } |
160 | |
161 | /** |
162 | * Check for a preferences file. If one can not be found, create it. |
163 | */ |
164 | function checkForPrefs($data_dir, $username, $filename = '') { |
165 | /* First, make sure we have the filename. */ |
166 | if ($filename == '') { |
bd1180c1 |
167 | $filename = getHashedFile($username, $data_dir, "$username.pref"); |
3499f99f |
168 | } |
169 | |
170 | /* Then, check if the file exists. */ |
171 | if (!@file_exists($filename) ) { |
172 | /* First, check the $data_dir for the default preference file. */ |
173 | $default_pref = $data_dir . 'default_pref'; |
174 | |
175 | /* If it is not there, check the internal data directory. */ |
176 | if (!@file_exists($default_pref)) { |
bd9c880b |
177 | $default_pref = SM_PATH . 'data/default_pref'; |
3499f99f |
178 | } |
179 | |
180 | /* Otherwise, report an error. */ |
9be8198d |
181 | $errTitle = sprintf( _("Error opening %s"), $default_pref ); |
3499f99f |
182 | if (!file_exists($default_pref)) { |
9be8198d |
183 | $errString = $errTitle . "<br>\n" . |
184 | _("Default preference file not found!") . "<br>\n" . |
185 | _("Please contact your system administrator and report this error.") . "<br>\n"; |
bd9c880b |
186 | include_once(SM_PATH . 'functions/display_messages.php' ); |
9be8198d |
187 | logout_error( $errString, $errTitle ); |
3499f99f |
188 | exit; |
189 | } else if (!@copy($default_pref, $filename)) { |
305a1012 |
190 | $uid = 'httpd'; |
191 | if (function_exists('posix_getuid')){ |
192 | $user_data = posix_getpwuid(posix_getuid()); |
193 | $uid = $user_data['name']; |
194 | } |
9be8198d |
195 | $errString = $errTitle . '<br>' . |
196 | _("Could not create initial preference file!") . "<br>\n" . |
197 | sprintf( _("%s should be writable by user %s"), $data_dir, $uid ) . |
198 | "<br>\n" . _("Please contact your system administrator and report this error.") . "<br>\n"; |
bd9c880b |
199 | include_once(SM_PATH . 'functions/display_messages.php' ); |
9be8198d |
200 | logout_error( $errString, $errTitle ); |
3499f99f |
201 | exit; |
202 | } |
203 | } |
204 | } |
205 | |
206 | /** |
207 | * Write the User Signature. |
208 | */ |
01265fba |
209 | function setSig($data_dir, $username, $number, $value) { |
210 | $filename = getHashedFile($username, $data_dir, "$username.si$number"); |
35b5fa13 |
211 | /* Open the file for writing, or else display an error to the user. */ |
dabef6fd |
212 | if(!$file = @fopen("$filename.tmp", 'w')) { |
213 | include_once( '../functions/display_messages.php' ); |
214 | logout_error( sprintf( _("Signature file, %s, could not be opened. Contact your system administrator to resolve this issue."), $filename . '.tmp') ); |
35b5fa13 |
215 | exit; |
216 | } |
dabef6fd |
217 | $tmpwrite = @fwrite($file, $value); |
218 | if ($tmpwrite == -1) { |
219 | include_once( '../functions/display_messages.php' ); |
220 | logout_error( sprintf( _("Signature file, %s, could not be written. Contact your system administrator to resolve this issue.") , $filename . '.tmp')); |
221 | exit; |
222 | } |
3499f99f |
223 | fclose($file); |
dabef6fd |
224 | @copy($filename . '.tmp',$filename); |
225 | @unlink($filename . '.tmp'); |
226 | chmod($filename, 0600); |
227 | |
3499f99f |
228 | } |
229 | |
230 | /** |
231 | * Get the signature. |
232 | */ |
01265fba |
233 | function getSig($data_dir, $username, $number) { |
01265fba |
234 | $filename = getHashedFile($username, $data_dir, "$username.si$number"); |
3499f99f |
235 | $sig = ''; |
236 | if (file_exists($filename)) { |
35b5fa13 |
237 | /* Open the file, or else display an error to the user. */ |
238 | if(!$file = @fopen($filename, 'r')) |
239 | { |
bd9c880b |
240 | include_once(SM_PATH . 'functions/display_messages.php'); |
35b5fa13 |
241 | logout_error( sprintf( _("Signature file, %s, could not be opened. Contact your system administrator to resolve this issue."), $filename) ); |
242 | exit; |
243 | } |
3499f99f |
244 | while (!feof($file)) { |
245 | $sig .= fgets($file, 1024); |
246 | } |
247 | fclose($file); |
248 | } |
249 | return $sig; |
250 | } |