<?php
/**
- * globals.php
+ * global.php
*
- * Copyright (c) 1999-2002 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.
*
- * $Id$
+ * @copyright © 1999-2007 The SquirrelMail Project Team
+ * @license http://opensource.org/licenses/gpl-license.php GNU Public License
+ * @version $Id$
+ * @package squirrelmail
*/
+/**
+ */
+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);
-/* convert old-style superglobals to current method
- * this is executed if you are running PHP 4.0.x.
- * it is run via a require_once directive in validate.php
- * and redirect.php. Patch submitted by Ray Black.
- */
-
-if ( !check_php_version(4,1) ) {
- global $_COOKIE, $_ENV, $_FILES, $_GET, $_POST, $_SERVER, $_SESSION;
- global $HTTP_COOKIE_VARS, $HTTP_ENV_VARS, $HTTP_POST_FILES, $HTTP_GET_VARS,
- $HTTP_POST_VARS, $HTTP_SERVER_VARS, $HTTP_SESSION_VARS;
- $_COOKIE =& $HTTP_COOKIE_VARS;
- $_ENV =& $HTTP_ENV_VARS;
- $_FILES =& $HTTP_POST_FILES;
- $_GET =& $HTTP_GET_VARS;
- $_POST =& $HTTP_POST_VARS;
- $_SERVER =& $HTTP_SERVER_VARS;
- $_SESSION =& $HTTP_SESSION_VARS;
-}
-
-/* if running with magic_quotes_gpc then strip the slashes
- from POST and GET global arrays */
-if (get_magic_quotes_gpc()) {
- sqstripslashes($_GET);
- sqstripslashes($_POST);
+/**
+ * returns true if current php version is at mimimum a.b.c
+ *
+ * Called: check_php_version(4,1)
+ * @param int a major version number
+ * @param int b minor version number
+ * @param int c release number
+ * @return bool
+ */
+function check_php_version ($a = '0', $b = '0', $c = '0')
+{
+ return version_compare ( PHP_VERSION, "$a.$b.$c", 'ge' );
}
-/* 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 */
-
-strip_tags($_SERVER['PHP_SELF']);
-
-/* returns true if current php version is at mimimum a.b.c */
-function check_php_version ($a = '0', $b = '0', $c = '0')
+/**
+ * returns true if the current internal SM version is at minimum a.b.c
+ * These are plain integer comparisons, as our internal version is
+ * constructed by us, as an array of 3 ints.
+ *
+ * Called: check_sm_version(1,3,3)
+ * @param int a major version number
+ * @param int b minor version number
+ * @param int c release number
+ * @return bool
+ */
+function check_sm_version($a = 0, $b = 0, $c = 0)
{
- global $SQ_PHP_VERSION;
-
- if(!isset($SQ_PHP_VERSION))
- $SQ_PHP_VERSION = str_pad( preg_replace('/\D/','', PHP_VERSION), 3, '0');
-
- return $SQ_PHP_VERSION >= ($a.$b.$c);
+ global $SQM_INTERNAL_VERSION;
+ if ( !isset($SQM_INTERNAL_VERSION) ||
+ $SQM_INTERNAL_VERSION[0] < $a ||
+ ( $SQM_INTERNAL_VERSION[0] == $a &&
+ $SQM_INTERNAL_VERSION[1] < $b) ||
+ ( $SQM_INTERNAL_VERSION[0] == $a &&
+ $SQM_INTERNAL_VERSION[1] == $b &&
+ $SQM_INTERNAL_VERSION[2] < $c ) ) {
+ return FALSE;
+ }
+ return TRUE;
}
-/* recursively strip slashes from the values of an array */
+
+/**
+ * Recursively strip slashes from the values of an array.
+ * @param array array the array to strip, passed by reference
+ * @return void
+ */
function sqstripslashes(&$array) {
if(count($array) > 0) {
foreach ($array as $index=>$value) {
}
}
+/**
+ * Squelch error output to screen (only) for the given function.
+ * If the SquirrelMail debug mode SM_DEBUG_MODE_ADVANCED is not
+ * enabled, error output will not go to the log, either.
+ *
+ * This provides an alternative to the @ error-suppression
+ * operator where errors will not be shown in the interface
+ * but will show up in the server log file (assuming the
+ * administrator has configured PHP logging).
+ *
+ * @since 1.4.12 and 1.5.2
+ *
+ * @param string $function The function to be executed
+ * @param array $args The arguments to be passed to the function
+ * (OPTIONAL; default no arguments)
+ * NOTE: The caller must take extra action if
+ * the function being called is supposed
+ * to use any of the parameters by
+ * reference. In the following example,
+ * $x is passed by reference and $y is
+ * passed by value to the "my_func"
+ * function.
+ * sq_call_function_suppress_errors('my_func', array(&$x, $y));
+ *
+ * @return mixed The return value, if any, of the function being
+ * executed will be returned.
+ *
+ */
+function sq_call_function_suppress_errors($function, $args=NULL) {
+ global $sm_debug_mode;
+
+ $display_errors = ini_get('display_errors');
+ ini_set('display_errors', '0');
+
+ // if advanced debug mode isn't enabled, don't log the error, either
+ //
+ if (!($sm_debug_mode & SM_DEBUG_MODE_ADVANCED))
+ $error_reporting = error_reporting(0);
+
+ $ret = call_user_func_array($function, $args);
+
+ if (!($sm_debug_mode & SM_DEBUG_MODE_ADVANCED))
+ error_reporting($error_reporting);
+
+ ini_set('display_errors', $display_errors);
+ return $ret;
+}
+
+/**
+ * Add a variable to the session.
+ * @param mixed $var the variable to register
+ * @param string $name the name to refer to this variable
+ * @return void
+ */
function sqsession_register ($var, $name) {
- if ( !check_php_version(4,1) ) {
- global $HTTP_SESSION_VARS;
- $HTTP_SESSION_VARS[$name] = $var;
- }
- else {
- $_SESSION["$name"] = $var;
- }
+
+ sqsession_is_active();
+
+ $_SESSION[$name] = $var;
}
+/**
+ * Delete a variable from the session.
+ * @param string $name the name of the var to delete
+ * @return void
+ */
function sqsession_unregister ($name) {
- if ( !check_php_version(4,1) ) {
- global $HTTP_SESSION_VARS;
- unset($HTTP_SESSION_VARS[$name]);
- }
- else {
- unset($_SESSION[$name]);
- }
+
+ sqsession_is_active();
+
+ unset($_SESSION[$name]);
+
+ session_unregister("$name");
}
+/**
+ * Checks to see if a variable has already been registered
+ * in the session.
+ * @param string $name the name of the var to check
+ * @return bool whether the var has been registered
+ */
function sqsession_is_registered ($name) {
$test_name = &$name;
$result = false;
- if ( !check_php_version(4,1) ) {
- global $HTTP_SESSION_VARS;
- if (isset($HTTP_SESSION_VARS[$test_name])) {
- $result = true;
+
+ if (isset($_SESSION[$test_name])) {
+ $result = true;
+ }
+
+ return $result;
+}
+
+
+/**
+ * Retrieves a form variable, from a set of possible similarly named
+ * form variables, based on finding a different, single field. This
+ * is intended to allow more than one same-named inputs in a single
+ * <form>, where the submit button that is clicked tells us which
+ * input we should retrieve. An example is if we have:
+ * <select name="startMessage_1">
+ * <select name="startMessage_2">
+ * <input type="submit" name="form_submit_1" />
+ * <input type="submit" name="form_submit_2" />
+ * and we want to know which one of the select inputs should be
+ * returned as $startMessage (without the suffix!), this function
+ * decides by looking for either "form_submit_1" or "form_submit_2"
+ * (both should not appear). In this example, $name should be
+ * "startMessage" and $indicator_field should be "form_submit".
+ *
+ * NOTE that form widgets must be named with the suffix "_1", "_2", "_3"
+ * and so on, or this function will not work.
+ *
+ * If more than one of the indicator fields is found, the first one
+ * (numerically) will win.
+ *
+ * If an indicator field is found without a matching input ($name)
+ * field, FALSE is returned.
+ *
+ * If no indicator fields are found, a field of $name *without* any
+ * suffix is searched for (but only if $fallback_no_suffix is TRUE),
+ * and if not found, FALSE is ultimately returned.
+ *
+ * It should also be possible to use the same string for both
+ * $name and $indicator_field to look for the first possible
+ * widget with a suffix that can be found (and possibly fallback
+ * to a widget without a suffix).
+ *
+ * @param string name the name of the var to search
+ * @param mixed value the variable to return
+ * @param string indicator_field the name of the field upon which to base
+ * our decision upon (see above)
+ * @param int search constant defining where to look
+ * @param bool fallback_no_suffix whether or not to look for $name with
+ * no suffix when nothing else is found
+ * @param mixed default the value to assign to $value when nothing is found
+ * @param int typecast force variable to be cast to given type (please
+ * use SQ_TYPE_XXX constants or set to FALSE (default)
+ * to leave variable type unmolested)
+ *
+ * @return bool whether variable is found.
+ */
+function sqGetGlobalVarMultiple($name, &$value, $indicator_field,
+ $search = SQ_INORDER,
+ $fallback_no_suffix=TRUE, $default=NULL,
+ $typecast=FALSE) {
+
+ // Set arbitrary max limit -- should be much lower except on the
+ // search results page, if there are many (50 or more?) mailboxes
+ // shown, this may not be high enough. Is there some way we should
+ // automate this value?
+ //
+ $max_form_search = 100;
+
+ for ($i = 1; $i <= $max_form_search; $i++) {
+ if (sqGetGlobalVar($indicator_field . '_' . $i, $temp, $search)) {
+ return sqGetGlobalVar($name . '_' . $i, $value, $search, $default, $typecast);
}
}
- else {
- if (isset($_SESSION[$test_name])) {
- $result = true;
+
+
+ // no indicator field found; just try without suffix if allowed
+ //
+ if ($fallback_no_suffix) {
+ return sqGetGlobalVar($name, $value, $search, $default, $typecast);
+ }
+
+
+ // no dice, set default and return FALSE
+ //
+ if (!is_null($default)) {
+ $value = $default;
+ }
+ return FALSE;
+
+}
+
+
+/**
+ * Search for the var $name in $_SESSION, $_POST, $_GET, $_COOKIE, or $_SERVER
+ * and set it in provided var.
+ *
+ * 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: $search is an int value equal to one of the constants defined above.
+ *
+ * Example:
+ * sqgetGlobalVar('username',$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
+ * @param int search constant defining where to look
+ * @param mixed default the value to assign to $value when nothing is found
+ * @param int typecast force variable to be cast to given type (please
+ * use SQ_TYPE_XXX constants or set to FALSE (default)
+ * to leave variable type unmolested)
+ *
+ * @return bool whether variable is found.
+ */
+function sqgetGlobalVar($name, &$value, $search = SQ_INORDER, $default = NULL, $typecast = false) {
+
+ $result = false;
+
+ switch ($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. */
+ default:
+ case SQ_INORDER: // check session, post, get
+ case SQ_SESSION:
+ if( isset($_SESSION[$name]) ) {
+ $value = $_SESSION[$name];
+ $result = TRUE;
+ break;
+ } elseif ( $search == SQ_SESSION ) {
+ break;
+ }
+ case SQ_FORM: // check post, get
+ case SQ_POST:
+ if( isset($_POST[$name]) ) {
+ $value = $_POST[$name];
+ $result = TRUE;
+ break;
+ } elseif ( $search == SQ_POST ) {
+ break;
+ }
+ case SQ_GET:
+ if ( isset($_GET[$name]) ) {
+ $value = $_GET[$name];
+ $result = TRUE;
+ break;
+ }
+ /* NO IF HERE. FOR SQ_INORDER CASE, EXIT after GET */
+ break;
+ case SQ_COOKIE:
+ if ( isset($_COOKIE[$name]) ) {
+ $value = $_COOKIE[$name];
+ $result = TRUE;
+ break;
}
+ break;
+ case SQ_SERVER:
+ if ( isset($_SERVER[$name]) ) {
+ $value = $_SERVER[$name];
+ $result = TRUE;
+ break;
+ }
+ break;
+ }
+ if ($result && $typecast) {
+ switch ($typecast) {
+ case SQ_TYPE_INT: $value = (int) $value; break;
+ case SQ_TYPE_STRING: $value = (string) $value; break;
+ case SQ_TYPE_BOOL: $value = (bool) $value; break;
+ default: break;
+ }
+ } else if (!$result && !is_null($default)) {
+ $value = $default;
}
return $result;
}
+/**
+ * Deletes an existing session, more advanced than the standard PHP
+ * session_destroy(), it explicitly deletes the cookies and global vars.
+ *
+ * WARNING: Older PHP versions have some issues with session management.
+ * See http://bugs.php.net/11643 (warning, spammed bug tracker) and
+ * http://bugs.php.net/13834. SID constant is not destroyed in PHP 4.1.2,
+ * 4.2.3 and maybe other versions. If you restart session after session
+ * is destroyed, affected PHP versions produce PHP notice. Bug should
+ * be fixed only in 4.3.0
+ */
+function sqsession_destroy() {
+
+ /*
+ * php.net says we can kill the cookie by setting just the name:
+ * http://www.php.net/manual/en/function.setcookie.php
+ * maybe this will help fix the session merging again.
+ *
+ * Changed the theory on this to kill the cookies first starting
+ * a new session will provide a new session for all instances of
+ * the browser, we don't want that, as that is what is causing the
+ * merging of sessions.
+ */
+
+ global $base_uri, $_COOKIE, $_SESSION;
+
+ if (isset($_COOKIE[session_name()]) && session_name()) sqsetcookie(session_name(), $_COOKIE[session_name()], 1, $base_uri);
+ if (isset($_COOKIE['key']) && $_COOKIE['key']) sqsetcookie('key','SQMTRASH',1,$base_uri);
+
+ $sessid = session_id();
+ if (!empty( $sessid )) {
+ $_SESSION = array();
+ @session_destroy();
+ }
+}
+
+/**
+ * Function to verify a session has been started. If it hasn't
+ * start a session up. php.net doesn't tell you that $_SESSION
+ * (even though autoglobal), is not created unless a session is
+ * started, unlike $_POST, $_GET and such
+ * Update: (see #1685031) the session ID is left over after the
+ * session is closed in some PHP setups; this function just becomes
+ * a passthru to sqsession_start(), but leaving old code in for
+ * edification.
+ */
+function sqsession_is_active() {
+ //$sessid = session_id();
+ //if ( empty( $sessid ) ) {
+ 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)
+ * Note that as sqsession_is_active() no longer discriminates as to when
+ * it calls this function, session_start() has to have E_NOTICE suppression
+ * (thus the @ sign).
+ */
+function sqsession_start() {
+ global $base_uri;
+
+ sq_call_function_suppress_errors('session_start');
+ // was: @session_start();
+ $session_id = session_id();
+
+ // session_starts sets the sessionid cookie but without the httponly var
+ // setting the cookie again sets the httponly cookie attribute
+ //
+ // need to check if headers have been sent, since sqsession_is_active()
+ // has become just a passthru to this function, so the sqsetcookie()
+ // below is called every time, even after headers have already been sent
+ //
+ if (!headers_sent())
+ sqsetcookie(session_name(),$session_id,false,$base_uri);
+}
+
+
/**
- * Search for the var $name in $_SESSION, $_POST, $_GET
- * (in that order) and register it as a global var.
+ * 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 $bHttpOnly Disallow JS to access the cookie (IE6 only)
+ * @return void
*/
-function sqextractGlobalVar ($name) {
- if ( !check_php_version(4,1) ) {
- global $_SESSION, $_GET, $_POST;
+function sqsetcookie($sName,$sValue='deleted',$iExpire=0,$sPath="",$sDomain="",$bSecure=false,$bHttpOnly=true) {
+ // if we have a secure connection then limit the cookies to https only.
+ if ($sName && isset($_SERVER['HTTPS']) && $_SERVER['HTTPS']) {
+ $bSecure = true;
}
- global $$name;
- if( isset($_SESSION[$name]) ) {
- $$name = $_SESSION[$name];
+
+ // admin config can override the restriction of secure-only cookies
+ global $only_secure_cookies;
+ if (!$only_secure_cookies)
+ $bSecure = false;
+
+ if (false && check_php_version(5,2)) {
+ // php 5 supports the httponly attribute in setcookie, but because setcookie seems a bit
+ // broken we use the header function for php 5.2 as well. We might change that later.
+ //setcookie($sName,$sValue,(int) $iExpire,$sPath,$sDomain,$bSecure,$bHttpOnly);
+ } else {
+ if (!empty($sDomain)) {
+ // Fix the domain to accept domains with and without 'www.'.
+ if (strtolower(substr($sDomain, 0, 4)) == 'www.') $sDomain = substr($sDomain, 4);
+ $sDomain = '.' . $sDomain;
+
+ // Remove port information.
+ $Port = strpos($sDomain, ':');
+ if ($Port !== false) $sDomain = substr($sDomain, 0, $Port);
+ }
+ if (!$sValue) $sValue = 'deleted';
+ header('Set-Cookie: ' . rawurlencode($sName) . '=' . rawurlencode($sValue)
+ . (empty($iExpire) ? '' : '; expires=' . gmdate('D, d-M-Y H:i:s', $iExpire) . ' GMT')
+ . (empty($sPath) ? '' : '; path=' . $sPath)
+ . (empty($sDomain) ? '' : '; domain=' . $sDomain)
+ . (!$bSecure ? '' : '; secure')
+ . (!$bHttpOnly ? '' : '; HttpOnly'), false);
}
- if( isset($_POST[$name]) ) {
- $$name = $_POST[$name];
+}
+
+/**
+ * session_regenerate_id replacement for PHP < 4.3.2
+ *
+ * This code is borrowed from Gallery, session.php version 1.53.2.1
+ */
+if (!function_exists('session_regenerate_id')) {
+ function make_seed() {
+ list($usec, $sec) = explode(' ', microtime());
+ return (float)$sec + ((float)$usec * 100000);
+ }
+
+ function php_combined_lcg() {
+ mt_srand(make_seed());
+ $tv = gettimeofday();
+ $lcg['s1'] = $tv['sec'] ^ (~$tv['usec']);
+ $lcg['s2'] = mt_rand();
+ $q = (int) ($lcg['s1'] / 53668);
+ $lcg['s1'] = (int) (40014 * ($lcg['s1'] - 53668 * $q) - 12211 * $q);
+ if ($lcg['s1'] < 0) {
+ $lcg['s1'] += 2147483563;
+ }
+ $q = (int) ($lcg['s2'] / 52774);
+ $lcg['s2'] = (int) (40692 * ($lcg['s2'] - 52774 * $q) - 3791 * $q);
+ if ($lcg['s2'] < 0) {
+ $lcg['s2'] += 2147483399;
+ }
+ $z = (int) ($lcg['s1'] - $lcg['s2']);
+ if ($z < 1) {
+ $z += 2147483562;
+ }
+ return $z * 4.656613e-10;
}
- else if ( isset($_GET[$name]) ) {
- $$name = $_GET[$name];
+
+ 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;
}
}
-function sqsession_destroy() {
- global $base_uri;
- /* start session to be able to destroy it later */
- session_start();
+/**
+ * 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) ) {
- if ( !check_php_version(4,1) ) {
- global $HTTP_SESSION_VARS;
- $HTTP_SESSION_VARS = array();
+ // 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;
}
- else {
- $_SESSION = array();
+
+ return '';
+}
+
+
+/**
+ * Find files and/or directories in a given directory optionally
+ * limited to only those with the given file extension. If the
+ * directory is not found or cannot be opened, no error is generated;
+ * only an empty file list is returned.
+FIXME: do we WANT to throw an error or a notice or... or return FALSE?
+ *
+ * @param string $directory_path The path (relative or absolute)
+ * to the desired directory.
+ * @param mixed $extension The file extension filter - either
+ * an array of desired extension(s),
+ * or a comma-separated list of same
+ * (optional; default is to return
+ * all files (dirs).
+ * @param boolean $return_filenames_only When TRUE, only file/dir names
+ * are returned, otherwise the
+ * $directory_path string is
+ * prepended to each file/dir in
+ * the returned list (optional;
+ * default is filename/dirname only)
+ * @param boolean $include_directories When TRUE, directories are
+ * included (optional; default
+ * DO include directories).
+ * @param boolean $directories_only When TRUE, ONLY directories
+ * are included (optional; default
+ * is to include files too).
+ * @param boolean $separate_files_and_directories When TRUE, files and
+ * directories are returned
+ * in separate lists, so
+ * the return value is
+ * formatted as a two-element
+ * array with the two keys
+ * "FILES" and "DIRECTORIES",
+ * where corresponding values
+ * are lists of either all
+ * files or all directories
+ * (optional; default do not
+ * split up return array).
+ * @param boolean $only_sm When TRUE, a security check will
+ * limit directory access to only
+ * paths within the SquirrelMail
+ * installation currently being used
+ * (optional; default TRUE)
+ *
+ * @return array The requested file/directory list(s).
+ *
+ * @since 1.5.2
+ *
+ */
+function list_files($directory_path, $extensions='', $return_filenames_only=TRUE,
+ $include_directories=TRUE, $directories_only=FALSE,
+ $separate_files_and_directories=FALSE, $only_sm=TRUE) {
+
+ $files = array();
+ $directories = array();
+
+
+ // make sure requested path is under SM_PATH if needed
+ //
+ if ($only_sm) {
+ if (strpos(realpath($directory_path), realpath(SM_PATH)) !== 0) {
+ //plain_error_message(_("Illegal filesystem access was requested"));
+ echo _("Illegal filesystem access was requested");
+ exit;
+ }
}
- /*
- * now reset cookies to 5 seconds ago to delete from browser
- */
- @session_destroy();
- $cookie_params = session_get_cookie_params();
- setcookie(session_name(), '', time() - 5, $cookie_params['path'],
- $cookie_params['domain']);
- setcookie('username', '', time() - 5, $base_uri);
- setcookie('key', '', time() - 5 , $base_uri);
+ // validate given directory
+ //
+ if (empty($directory_path)
+ || !is_dir($directory_path)
+ || !($DIR = opendir($directory_path))) {
+ return $files;
+ }
+
+
+ // ensure extensions is an array and is properly formatted
+ //
+ if (!empty($extensions)) {
+ if (!is_array($extensions))
+ $extensions = explode(',', $extensions);
+ $temp_extensions = array();
+ foreach ($extensions as $ext)
+ $temp_extensions[] = '.' . trim(trim($ext), '.');
+ $extensions = $temp_extensions;
+ } else $extensions = array();
+
+
+ $directory_path = rtrim($directory_path, '/');
+
+
+ // parse through the files
+ //
+ while (($file = readdir($DIR)) !== false) {
+
+ if ($file == '.' || $file == '..') continue;
+
+ if (!empty($extensions))
+ foreach ($extensions as $ext)
+ if (strrpos($file, $ext) !== (strlen($file) - strlen($ext)))
+ continue 2;
+
+ // only use is_dir() if we really need to (be as efficient as possible)
+ //
+ $is_dir = FALSE;
+ if (!$include_directories || $directories_only
+ || $separate_files_and_directories) {
+ if (is_dir($directory_path . '/' . $file)) {
+ if (!$include_directories) continue;
+ $is_dir = TRUE;
+ $directories[] = ($return_filenames_only
+ ? $file
+ : $directory_path . '/' . $file);
+ }
+ if ($directories_only) continue;
+ }
+
+ if (!$separate_files_and_directories
+ || ($separate_files_and_directories && !$is_dir)) {
+ $files[] = ($return_filenames_only
+ ? $file
+ : $directory_path . '/' . $file);
+ }
+
+ }
+ closedir($DIR);
+
+
+ if ($directories_only) return $directories;
+ if ($separate_files_and_directories) return array('FILES' => $files,
+ 'DIRECTORIES' => $directories);
+ return $files;
+
}
-?>
+
+/**
+ * Print variable
+ *
+ * sm_print_r($some_variable, [$some_other_variable [, ...]]);
+ *
+ * Debugging function - does the same as print_r, but makes sure special
+ * characters are converted to htmlentities first. This will allow
+ * values like <some@email.address> to be displayed.
+ * The output is wrapped in <<pre>> and <</pre>> tags.
+ * Since 1.4.2 accepts unlimited number of arguments.
+ * @since 1.4.1
+ * @return void
+ */
+function sm_print_r() {
+ ob_start(); // Buffer output
+ foreach(func_get_args() as $var) {
+ print_r($var);
+ echo "\n";
+ // php has get_class_methods function that can print class methods
+ if (is_object($var)) {
+ // get class methods if $var is object
+ $aMethods=get_class_methods(get_class($var));
+ // make sure that $aMethods is array and array is not empty
+ if (is_array($aMethods) && $aMethods!=array()) {
+ echo "Object methods:\n";
+ foreach($aMethods as $method) {
+ echo '* ' . $method . "\n";
+ }
+ }
+ echo "\n";
+ }
+ }
+ $buffer = ob_get_contents(); // Grab the print_r output
+ ob_end_clean(); // Silently discard the output & stop buffering
+ print '<div align="left"><pre>';
+ print htmlentities($buffer);
+ print '</pre></div>';
+}
+
+
+/**
+ * Sanitize a value using htmlspecialchars() or similar, but also
+ * recursively run htmlspecialchars() (or similar) on array keys
+ * and values.
+ *
+ * If $value is not a string or an array with strings in it,
+ * the value is returned as is.
+ *
+ * @param mixed $value The value to be sanitized.
+ * @param mixed $quote_style Either boolean or an integer. If it
+ * is an integer, it must be the PHP
+ * constant indicating if/how to escape
+ * quotes: ENT_QUOTES, ENT_COMPAT, or
+ * ENT_NOQUOTES. If it is a boolean value,
+ * it must be TRUE and thus indicates
+ * that the only sanitizing to be done
+ * herein is to replace single and double
+ * quotes with ' and ", no other
+ * changes are made to $value. If it is
+ * boolean and FALSE, behavior reverts
+ * to same as if the value was ENT_QUOTES
+ * (OPTIONAL; default is ENT_QUOTES).
+ *
+ * @return mixed The sanitized value.
+ *
+ * @since 1.5.2
+ *
+ **/
+function sq_htmlspecialchars($value, $quote_style=ENT_QUOTES) {
+
+ if ($quote_style === FALSE) $quote_style = ENT_QUOTES;
+
+ // array? go recursive...
+ //
+ if (is_array($value)) {
+ $return_array = array();
+ foreach ($value as $key => $val) {
+ $return_array[sq_htmlspecialchars($key, $quote_style)]
+ = sq_htmlspecialchars($val, $quote_style);
+ }
+ return $return_array;
+
+ // sanitize strings only
+ //
+ } else if (is_string($value)) {
+ if ($quote_style === TRUE)
+ return str_replace(array('\'', '"'), array(''', '"'), $value);
+ else
+ return htmlspecialchars($value, $quote_style);
+ }
+
+ // anything else gets returned with no changes
+ //
+ return $value;
+
+}
projects / squirrelmail.git / blobdiff