/**
* global.php
*
- * Copyright (c) 1999-2004 The SquirrelMail Project Team
- * Licensed under the GNU GPL. For full terms see the file COPYING.
- *
- * This includes code to update < 4.1.0 globals to the newer format
+ * This includes code to update < 4.1.0 globals to the newer format
* It also has some session register functions that work across various
- * php versions.
+ * php versions.
*
+ * @copyright © 1999-2005 The SquirrelMail Project Team
+ * @license http://opensource.org/licenses/gpl-license.php GNU Public License
* @version $Id$
* @package squirrelmail
*/
-/** Bring in the config file. */
-require_once(SM_PATH . 'config/config.php');
-
-/** 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.
+/**
*/
+define('SQ_INORDER',0);
+define('SQ_GET',1);
+define('SQ_POST',2);
+define('SQ_SESSION',3);
+define('SQ_COOKIE',4);
+define('SQ_SERVER',5);
+define('SQ_FORM',6);
-global $uid_support;
-$uid_support = true;
-
-sqsession_is_active();
-
-/* 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']);
-
-/**
- * returns true if current php version is at mimimum a.b.c
- *
+/**
+ * returns true if current php version is at mimimum a.b.c
+ *
* Called: check_php_version(4,1)
* @param int a major version number
* @param int b minor version number
* @param int c release number
* @return bool
*/
-function check_php_version ($a = '0', $b = '0', $c = '0')
+function check_php_version ($a = '0', $b = '0', $c = '0')
{
return version_compare ( PHP_VERSION, "$a.$b.$c", 'ge' );
}
/**
- * returns true if the current internal SM version is at minimum a.b.c
- * These are plain integer comparisons, as our internal version is
+ * returns true if the current internal SM version is at minimum a.b.c
+ * These are plain integer comparisons, as our internal version is
* constructed by us, as an array of 3 ints.
*
* Called: check_sm_version(1,3,3)
$SQM_INTERNAL_VERSION[1] == $b &&
$SQM_INTERNAL_VERSION[2] < $c ) ) {
return FALSE;
- }
- return TRUE;
+ }
+ return TRUE;
}
sqsession_is_active();
- $_SESSION["$name"] = $var;
-
+ $_SESSION["$name"] = $var;
+
session_register("$name");
}
sqsession_is_active();
unset($_SESSION[$name]);
-
+
session_unregister("$name");
}
function sqsession_is_registered ($name) {
$test_name = &$name;
$result = false;
-
+
if (isset($_SESSION[$test_name])) {
$result = true;
}
-
+
return $result;
}
-
-define('SQ_INORDER',0);
-define('SQ_GET',1);
-define('SQ_POST',2);
-define('SQ_SESSION',3);
-define('SQ_COOKIE',4);
-define('SQ_SERVER',5);
-define('SQ_FORM',6);
-
/**
- * Search for the var $name in $_SESSION, $_POST, $_GET,
- * $_COOKIE, or $_SERVER and set it in provided var.
+ * Search for the var $name in $_SESSION, $_POST, $_GET, $_COOKIE, or $_SERVER
+ * and set it in provided var.
*
- * If $search is not provided, or == SQ_INORDER, it will search
- * $_SESSION, then $_POST, then $_GET. Otherwise,
- * use one of the defined constants to look for
- * a var in one place specifically.
+ * If $search is not provided, or if it is SQ_INORDER, it will search $_SESSION,
+ * then $_POST, then $_GET. If $search is SQ_FORM it will search $_POST and
+ * $_GET. Otherwise, use one of the defined constants to look for a var in one
+ * place specifically.
*
- * Note: $search is an int value equal to one of the
- * constants defined above.
+ * Note: $search is an int value equal to one of the constants defined above.
*
- * example:
- * sqgetGlobalVar('username',$username,SQ_SESSION);
- * -- no quotes around last param!
+ * Example:
+ * sqgetGlobalVar('username',$username,SQ_SESSION);
+ * // No quotes around last param, it's a constant - not a string!
*
* @param string name the name of the var to search
* @param mixed value the variable to return
enclosing them in quotes will cause them to evaluate
as strings. */
switch ($search) {
- /* we want the default case to be first here,
- so that if a valid value isn't specified,
- all three arrays will be searched. */
+ /* we want the default case to be first here,
+ so that if a valid value isn't specified,
+ all three arrays will be searched. */
default:
case SQ_INORDER: // check session, post, get
case SQ_SESSION:
if ( isset($_GET[$name]) ) {
$value = $_GET[$name];
return TRUE;
- }
+ }
/* NO IF HERE. FOR SQ_INORDER CASE, EXIT after GET */
break;
case SQ_COOKIE:
if ( isset($_COOKIE[$name]) ) {
$value = $_COOKIE[$name];
- return TRUE;
+ return TRUE;
}
break;
case SQ_SERVER:
}
break;
}
+ /* Nothing found, return FALSE */
return FALSE;
}
global $base_uri;
- if (isset($_COOKIE[session_name()])) setcookie(session_name(), '', time() - 5, $base_uri);
- if (isset($_COOKIE['username'])) setcookie('username','',time() - 5,$base_uri);
- if (isset($_COOKIE['key'])) setcookie('key','',time() - 5,$base_uri);
+ if (isset($_COOKIE[session_name()])) sqsetcookie(session_name(), '', 0, $base_uri);
+ if (isset($_COOKIE['username'])) sqsetcookie('username','',0,$base_uri);
+ if (isset($_COOKIE['key'])) sqsetcookie('key','',0,$base_uri);
$sessid = session_id();
if (!empty( $sessid )) {
$_SESSION = array();
@session_destroy();
+ session_regenerate_id(true);
+ sqsetcookie(session_name(), '', 0, $base_uri);
+ session_write_close();
}
}
* (even though autoglobal), is not created unless a session is
* started, unlike $_POST, $_GET and such
*/
-
function sqsession_is_active() {
-
$sessid = session_id();
if ( empty( $sessid ) ) {
- session_start();
+ sqsession_start();
+ }
+}
+
+/**
+ * Function to start the session and store the cookie with the session_id as
+ * HttpOnly cookie which means that the cookie isn't accessible by javascript
+ * (IE6 only)
+ */
+function sqsession_start() {
+ global $PHP_SELF;
+
+ $dirs = array('|src/.*|', '|plugins/.*|', '|functions/.*|');
+ $repl = array('', '', '');
+ $base_uri = preg_replace($dirs, $repl, $PHP_SELF);
+
+
+ session_start();
+ $sessid = session_id();
+ // session_starts sets the sessionid cookie buth without the httponly var
+ // setting the cookie again sets the httponly cookie attribute
+ sqsetcookie(session_name(),$sessid,false,$base_uri);
+}
+
+
+/**
+ * Set a cookie
+ * @param string $sName The name of the cookie.
+ * @param string $sValue The value of the cookie.
+ * @param int $iExpire The time the cookie expires. This is a Unix timestamp so is in number of seconds since the epoch.
+ * @param string $sPath The path on the server in which the cookie will be available on.
+ * @param string $sDomain The domain that the cookie is available.
+ * @param boolean $bSecure Indicates that the cookie should only be transmitted over a secure HTTPS connection.
+ * @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) {
+ $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);
+ }
+ }
+ if ($sDomain) {
+ $sHeader .= "; Domain=$sDomain";
+ }
+ if ($bSecure) {
+ $sHeader .= "; Secure";
+ }
+ if ($bHttpOnly) {
+ $sHeader .= "; HttpOnly";
+ }
+ // $sHeader .= "; Version=1";
+
+ header($sHeader);
+}
+
+function php_combined_lcg() {
+ $tv = gettimeofday();
+ $lcg['s1'] = $tv['sec'] ^ (~$tv['usec']);
+ $lcg['s2'] = posix_getpid();
+
+ $q = (int) ($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;
+}
+
+
+if (!function_exists('session_regenerate_id')) {
+
+ function session_regenerate_id() {
+ global $base_uri;
+
+ $tv = gettimeofday();
+ $buf = sprintf("%.15s%ld%ld%0.8f", $_SERVER['REMOTE_ADDR'], $tv['sec'], $tv['usec'], php_combined_lcg() * 10);
+ $sessid = session_id(md5($buf));
+ if (ini_get('session.use_cookies')) {
+ if (isset($_COOKIE[session_name()])) sqsetcookie(session_name(), $sessid, 0, $base_uri);
+ }
+ return true;
}
}
-// vim: et ts=4
-?>
+
+/**
+ * php_self
+ *
+ * Creates an URL for the page calling this function, using either the PHP global
+ * REQUEST_URI, or the PHP global PHP_SELF with QUERY_STRING added. Before 1.5.1
+ * function was stored in function/strings.php.
+ *
+ * @return string the complete url for this page
+ * @since 1.2.3
+ */
+function php_self () {
+ if ( sqgetGlobalVar('REQUEST_URI', $req_uri, SQ_SERVER) && !empty($req_uri) ) {
+ return $req_uri;
+ }
+
+ if ( sqgetGlobalVar('PHP_SELF', $php_self, SQ_SERVER) && !empty($php_self) ) {
+
+ // need to add query string to end of PHP_SELF to match REQUEST_URI
+ //
+ if ( sqgetGlobalVar('QUERY_STRING', $query_string, SQ_SERVER) && !empty($query_string) ) {
+ $php_self .= '?' . $query_string;
+ }
+
+ return $php_self;
+ }
+
+ return '';
+}
+
+/** set the name of the session cookie */
+if(isset($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