* It also has some session register functions that work across various
* php versions.
*
- * @copyright © 1999-2005 The SquirrelMail Project Team
+ * @copyright © 1999-2006 The SquirrelMail Project Team
* @license http://opensource.org/licenses/gpl-license.php GNU Public License
* @version $Id$
* @package squirrelmail
define('SQ_SERVER',5);
define('SQ_FORM',6);
+
/**
* returns true if current php version is at mimimum a.b.c
*
* @param int search constant defining where to look
* @return bool whether variable is found.
*/
-function sqgetGlobalVar($name, &$value, $search = SQ_INORDER) {
+function sqgetGlobalVar($name, &$value, $search = SQ_INORDER, $default = NULL, $typecast = false) {
+
+ $result = false;
- /* NOTE: DO NOT enclose the constants in the switch
- statement with quotes. They are constant values,
- enclosing them in quotes will cause them to evaluate
- as strings. */
switch ($search) {
/* we want the default case to be first here,
so that if a valid value isn't specified,
case SQ_SESSION:
if( isset($_SESSION[$name]) ) {
$value = $_SESSION[$name];
- return TRUE;
+ $result = TRUE;
+ break;
} elseif ( $search == SQ_SESSION ) {
break;
}
case SQ_POST:
if( isset($_POST[$name]) ) {
$value = $_POST[$name];
- return TRUE;
+ $result = TRUE;
+ break;
} elseif ( $search == SQ_POST ) {
break;
}
case SQ_GET:
if ( isset($_GET[$name]) ) {
$value = $_GET[$name];
- return TRUE;
+ $result = TRUE;
+ break;
}
/* NO IF HERE. FOR SQ_INORDER CASE, EXIT after GET */
break;
case SQ_COOKIE:
if ( isset($_COOKIE[$name]) ) {
$value = $_COOKIE[$name];
- return TRUE;
+ $result = TRUE;
+ break;
}
break;
case SQ_SERVER:
if ( isset($_SERVER[$name]) ) {
$value = $_SERVER[$name];
- return TRUE;
+ $result = TRUE;
+ break;
}
break;
}
- /* Nothing found, return FALSE */
- return FALSE;
+ if ($result && $typecast) {
+ switch ($typecast) {
+ case 'int': $value = (int) $value; break;
+ case 'bool': $value = (bool) $value; break;
+ default: break;
+ }
+ } else if (!is_null($default)) {
+ $value = $default;
+ }
+ return $result;
}
/**
$_SESSION = array();
@session_destroy();
}
-
}
/**
* (IE6 only)
*/
function sqsession_start() {
- global $PHP_SELF;
-
- $dirs = array('|src/.*|', '|plugins/.*|', '|functions/.*|');
- $repl = array('', '', '');
- $base_uri = preg_replace($dirs, $repl, $PHP_SELF);
-
+ global $base_uri;
session_start();
- $sessid = session_id();
+ $session_id = session_id();
+
// session_starts sets the sessionid cookie buth without the httponly var
// setting the cookie again sets the httponly cookie attribute
- sqsetcookie(session_name(),$sessid,false,$base_uri);
+
+ // disable, @see sqsetcookie and php 5.1.2
+ // sqsetcookie(session_name(),session_id(),false,$base_uri);
}
* @param boolean $bHttpOnly Disallow JS to access the cookie (IE6 only)
* @return void
*/
-function sqsetcookie($sName,$sValue,$iExpire=false,$sPath="",$sDomain="",$bSecure=false,$bHttpOnly=true) {
+function sqsetcookie($sName,$sValue,$iExpire=false,$sPath="",$sDomain="",$bSecure=false,$bHttpOnly=true,$bFlush=false) {
+ static $sCookieCache;
+ if (!isset($sCache)) {
+ $sCache = '';
+ }
+ /**
+ * We have to send all cookies with one header call otherwise we loose cookies.
+ * In order to achieve that the sqsetcookieflush function calls this function with $bFlush = true.
+ * If that happens we send the cookie header.
+ */
+ if ($bFlush) {
+ // header($sCookieCache);
+ return;
+ }
+ if (!$sName) return;
+
+ // php 5.1.2 and 4.4.2 do not allow to send multiple headers at once.
+ // Because that's the only way to get this thing working we fallback to
+ // setcookie until we solved this
+ if ($iExpire===false) $iExpire = 0;
+ setcookie($sName, $sValue, $iExpire, $sPath);
+ return;
+
$sHeader = "Set-Cookie: $sName=$sValue";
if ($sPath) {
$sHeader .= "; path=$sPath";
if ($iExpire !== false) {
$sHeader .= "; Max-Age=$iExpire";
// php uses Expire header, also add the expire header
- if ($iExpire === 0) {
- $sHeader .= "; expires=". date("r",time() - 3600);
- } else {
- $sHeader .= "; expires=". date("r",$iExpire);
- }
+ $sHeader .= "; expires=". gmdate('D, d-M-Y H:i:s T',$iExpire);
}
if ($sDomain) {
$sHeader .= "; Domain=$sDomain";
}
+ // TODO: IE for Mac (5.2) thinks that semicolon is part of cookie domain
if ($bSecure) {
$sHeader .= "; Secure";
}
$sHeader .= "; HttpOnly";
}
// $sHeader .= "; Version=1";
+ $sCookieCache .= $sHeader ."\r\n";
+ //header($sHeader."\r\n");
+}
- header($sHeader);
+/**
+ * Send the cookie header
+ *
+ * Cookies set with sqsetcookie will bet set after a sqsetcookieflush call.
+ * @return void
+ */
+function sqsetcookieflush() {
+ sqsetcookie('','','','','','','',true);
}
+/**
+ * session_regenerate_id replacement for PHP < 4.3.2
+ *
+ * This code is borrowed from Gallery, session.php version 1.53.2.1
+ */
+if (!function_exists('session_regenerate_id')) {
+ function make_seed() {
+ list($usec, $sec) = explode(' ', microtime());
+ return (float)$sec + ((float)$usec * 100000);
+ }
+
+ function php_combined_lcg() {
+ mt_srand(make_seed());
+ $tv = gettimeofday();
+ $lcg['s1'] = $tv['sec'] ^ (~$tv['usec']);
+ $lcg['s2'] = mt_rand();
+ $q = (int) ($lcg['s1'] / 53668);
+ $lcg['s1'] = (int) (40014 * ($lcg['s1'] - 53668 * $q) - 12211 * $q);
+ if ($lcg['s1'] < 0) {
+ $lcg['s1'] += 2147483563;
+ }
+ $q = (int) ($lcg['s2'] / 52774);
+ $lcg['s2'] = (int) (40692 * ($lcg['s2'] - 52774 * $q) - 3791 * $q);
+ if ($lcg['s2'] < 0) {
+ $lcg['s2'] += 2147483399;
+ }
+ $z = (int) ($lcg['s1'] - $lcg['s2']);
+ if ($z < 1) {
+ $z += 2147483562;
+ }
+ return $z * 4.656613e-10;
+ }
+
+ function session_regenerate_id() {
+ global $base_uri;
+ $tv = gettimeofday();
+ sqgetGlobalVar('REMOTE_ADDR',$remote_addr,SQ_SERVER);
+ $buf = sprintf("%.15s%ld%ld%0.8f", $remote_addr, $tv['sec'], $tv['usec'], php_combined_lcg() * 10);
+ session_id(md5($buf));
+ if (ini_get('session.use_cookies')) {
+ // at a later stage we use sqsetcookie. At this point just do
+ // what session_regenerate_id would do
+ setcookie(session_name(), session_id(), NULL, $base_uri);
+ }
+ return TRUE;
+ }
+}
+
+
/**
* php_self
*
return '';
}
-/** set the name of the session cookie */
-if(isset($session_name) && $session_name) {
- ini_set('session.name' , $session_name);
-} else {
- ini_set('session.name' , 'SQMSESSID');
-}
-
-/**
- * If magic_quotes_runtime is on, SquirrelMail breaks in new and creative ways.
- * Force magic_quotes_runtime off.
- * tassium@squirrelmail.org - I put it here in the hopes that all SM code includes this.
- * If there's a better place, please let me know.
- */
-ini_set('magic_quotes_runtime','0');
-
-/* Since we decided all IMAP servers must implement the UID command as defined in
- * the IMAP RFC, we force $uid_support to be on.
- */
-
-global $uid_support;
-$uid_support = true;
-
-/* if running with magic_quotes_gpc then strip the slashes
- from POST and GET global arrays */
-
-if (get_magic_quotes_gpc()) {
- sqstripslashes($_GET);
- sqstripslashes($_POST);
-}
-
-/* strip any tags added to the url from PHP_SELF.
- This fixes hand crafted url XXS expoits for any
- page that uses PHP_SELF as the FORM action */
-$_SERVER['PHP_SELF'] = strip_tags($_SERVER['PHP_SELF']);
-
-$PHP_SELF = php_self();
-
-sqsession_is_active();
-?>
\ No newline at end of file
projects / squirrelmail.git / blobdiff