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<?php
/**
* file_prefs.php
*
* Copyright (c) 1999-2002 The SquirrelMail Project Team
* Licensed under the GNU GPL. For full terms see the file COPYING.
*
* This contains functions for manipulating user preferences in files
*
* $Id: file_prefs.php,v 1.5 2002/03/30 09:31:42 philippe_mingo Exp $
*/
global $prefs_are_cached, $prefs_cache;
/**
* Check the preferences into the session cache.
*/
function cachePrefValues($data_dir, $username) {
global $prefs_are_cached, $prefs_cache;
if ( isset($prefs_are_cached) && $prefs_are_cached) {
return;
}
session_unregister('prefs_cache');
session_unregister('prefs_are_cached');
/* Calculate the filename for the user's preference file */
$filename = getHashedFile($username, $data_dir, "$username.pref");
/* A call to checkForPrefs here should take eliminate the need for */
/* this to be called throughout the rest of the SquirrelMail code. */
checkForPrefs($data_dir, $username, $filename);
/* Make sure that the preference file now DOES exist. */
if (!file_exists($filename)) {
include_once( '../functions/display_messages.php' );
logout_error( sprintf( _("Preference file, %s, does not exist. Log out, and log back in to create a default preference file."), $filename) );
exit;
}
$file = fopen($filename, 'r');
/* Read in the preferences. */
$highlight_num = 0;
while (! feof($file)) {
$pref = trim(fgets($file, 1024));
$equalsAt = strpos($pref, '=');
if ($equalsAt > 0) {
$key = substr($pref, 0, $equalsAt);
$value = substr($pref, $equalsAt + 1);
if (substr($key, 0, 9) == 'highlight') {
$key = 'highlight' . $highlight_num;
$highlight_num ++;
}
if ($value != '') {
$prefs_cache[$key] = $value;
}
}
}
fclose($file);
$prefs_are_cached = TRUE;
session_register('prefs_cache');
session_register('prefs_are_cached');
}
/**
* Return the value for the prefernce given by $string.
*/
function getPref($data_dir, $username, $string, $default = '') {
global $prefs_cache;
$result = '';
cachePrefValues($data_dir, $username);
if (isset($prefs_cache[$string])) {
$result = $prefs_cache[$string];
} else {
$result = $default;
}
return ($result);
}
/**
* Save the preferences for this user.
*/
function savePrefValues($data_dir, $username) {
global $prefs_cache;
$filename = getHashedFile($username, $data_dir, "$username.pref");
$file = fopen($filename, 'w');
foreach ($prefs_cache as $Key => $Value) {
if (isset($Value)) {
fwrite($file, $Key . '=' . $Value . "\n");
}
}
fclose($file);
chmod($filename, 0600);
}
/**
* Remove a preference for the current user.
*/
function removePref($data_dir, $username, $string) {
global $prefs_cache;
cachePrefValues($data_dir, $username);
if (isset($prefs_cache[$string])) {
unset($prefs_cache[$string]);
}
savePrefValues($data_dir, $username);
}
/**
* Set a there preference $string to $value.
*/
function setPref($data_dir, $username, $string, $value) {
global $prefs_cache;
cachePrefValues($data_dir, $username);
if (isset($prefs_cache[$string]) && ($prefs_cache[$string] == $value)) {
return;
}
if ($value === '') {
removePref($data_dir, $username, $string);
return;
}
$prefs_cache[$string] = $value;
savePrefValues($data_dir, $username);
}
/**
* Check for a preferences file. If one can not be found, create it.
*/
function checkForPrefs($data_dir, $username, $filename = '') {
/* First, make sure we have the filename. */
if ($filename == '') {
$filename = getHashedFile($username, $data_dir, "$username.pref");
}
/* Then, check if the file exists. */
if (!@file_exists($filename) ) {
/* First, check the $data_dir for the default preference file. */
$default_pref = $data_dir . 'default_pref';
/* If it is not there, check the internal data directory. */
if (!@file_exists($default_pref)) {
$default_pref = '../data/default_pref';
}
/* Otherwise, report an error. */
$errTitle = sprintf( _("Error opening %s"), $default_pref );
if (!file_exists($default_pref)) {
$errString = $errTitle . "<br>\n" .
_("Default preference file not found!") . "<br>\n" .
_("Please contact your system administrator and report this error.") . "<br>\n";
include_once( '../functions/display_messages.php' );
logout_error( $errString, $errTitle );
exit;
} else if (!@copy($default_pref, $filename)) {
$user_data = posix_getpwuid(posix_getuid());
$uid = $user_data['name'];
$errString = $errTitle . '<br>' .
_("Could not create initial preference file!") . "<br>\n" .
sprintf( _("%s should be writable by user %s"), $data_dir, $uid ) .
"<br>\n" . _("Please contact your system administrator and report this error.") . "<br>\n";
include_once( '../functions/display_messages.php' );
logout_error( $errString, $errTitle );
exit;
}
}
}
/**
* Write the User Signature.
*/
function setSig($data_dir, $username, $number, $value) {
$filename = getHashedFile($username, $data_dir, "$username.si$number");
$file = fopen($filename, 'w');
fwrite($file, $value);
fclose($file);
}
/**
* Get the signature.
*/
function getSig($data_dir, $username, $number) {
#$filename = $data_dir . $username . '.si$number';
$filename = getHashedFile($username, $data_dir, "$username.si$number");
$sig = '';
if (file_exists($filename)) {
$file = fopen($filename, 'r');
while (!feof($file)) {
$sig .= fgets($file, 1024);
}
fclose($file);
}
return $sig;
}
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