* It also has some session register functions that work across various
* php versions.
*
- * @copyright © 1999-2005 The SquirrelMail Project Team
+ * @copyright © 1999-2007 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
*
sqsession_is_active();
- $_SESSION["$name"] = $var;
-
- session_register("$name");
+ $_SESSION[$name] = $var;
}
/**
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, $typecast);
+ }
+ }
+
+
+ // no indicator field found; just try without suffix if allowed
+ //
+ if ($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.
* @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, $search = SQ_INORDER) {
+function sqgetGlobalVar($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 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() {
* merging of sessions.
*/
- global $base_uri;
+ global $base_uri, $_COOKIE, $_SESSION;
- if (isset($_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,$base_uri);
+ if (isset($_COOKIE[session_name()]) && session_name()) sqsetcookie(session_name(), '', 0, $base_uri);
+ if (isset($_COOKIE['username']) && $_COOKIE['username']) sqsetcookie('username','',0,$base_uri);
+ if (isset($_COOKIE['key']) && $_COOKIE['key']) sqsetcookie('key','',0,$base_uri);
$sessid = session_id();
if (!empty( $sessid )) {
$_SESSION = array();
@session_destroy();
}
-
}
/**
* 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( $sessid ) ) {
+ //$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 $PHP_SELF;
-
- $dirs = array('|src/.*|', '|plugins/.*|', '|functions/.*|');
- $repl = array('', '', '');
- $base_uri = preg_replace($dirs, $repl, $PHP_SELF);
+ global $base_uri;
+ @session_start();
+ $session_id = session_id();
- 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,$base_uri);
+ sqsetcookie(session_name(),$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) {
- $sHeader = "Set-Cookie: $sName=$sValue";
- if ($sPath) {
- $sHeader .= "; path=$sPath";
+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']) {
+ $bSecure = true;
}
- if ($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);
+
+ // 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')
+ . (!$bHttpOnly ? '' : '; HttpOnly'), false);
}
- if ($sDomain) {
- $sHeader .= "; Domain=$sDomain";
- }
- if ($bSecure) {
- $sHeader .= "; Secure";
+}
+
+/**
+ * session_regenerate_id replacement for PHP < 4.3.2
+ *
+ * This code is borrowed from Gallery, session.php version 1.53.2.1
+ */
+if (!function_exists('session_regenerate_id')) {
+ function make_seed() {
+ list($usec, $sec) = explode(' ', microtime());
+ return (float)$sec + ((float)$usec * 100000);
}
- if ($bHttpOnly) {
- $sHeader .= "; HttpOnly";
+
+ 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;
}
- // $sHeader .= "; Version=1";
- header($sHeader);
+ 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');
+ * 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;
+ }
+ }
-/* 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;
+ // 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 $files;
-/* if running with magic_quotes_gpc then strip the slashes
- from POST and GET global arrays */
-if (get_magic_quotes_gpc()) {
- sqstripslashes($_GET);
- sqstripslashes($_POST);
}
+
/**
- * If register_globals are on, unregister globals.
- * Code requires PHP 4.1.0 or newer.
+ * Print variable
+ *
+ * sm_print_r($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
*/
-if ((bool) @ini_get('register_globals')) {
- /**
- * Remove all globals from $_GET, $_POST, and $_COOKIE.
- */
- foreach ($_REQUEST as $key => $value) {
- unset($GLOBALS[$key]);
- }
- /**
- * Remove globalized $_FILES variables
- * Before 4.3.0 $_FILES are included in $_REQUEST.
- * Unglobalize them in separate call in order to remove dependency
- * on PHP version.
- */
- foreach ($_FILES as $key => $value) {
- unset($GLOBALS[$key]);
- // there are three undocumented $_FILES globals.
- unset($GLOBALS[$key.'_type']);
- unset($GLOBALS[$key.'_name']);
- unset($GLOBALS[$key.'_size']);
+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 '* ' . $method . "\n";
+ }
+ }
+ echo "\n";
+ }
}
- /**
- * Remove globalized environment variables.
- */
- foreach ($_ENV as $key => $value) {
- unset($GLOBALS[$key]);
+ $buffer = ob_get_contents(); // Grab the print_r output
+ ob_end_clean(); // Silently discard the output & stop buffering
+ print '<div align="left"><pre>';
+ print htmlentities($buffer);
+ print '</pre></div>';
+}
+
+
+/**
+ * SquirrelMail wrapper for popen()/proc_open()
+ *
+ * This emulates popen() by using proc_open() if at all
+ * possible (reverts seamlessly to popen() if proc_open()
+ * is not supported in current PHP installation).
+ *
+ * This is intended for use with the related sq_pclose(),
+ * sq_get_pipe_stdout() and sq_get_pipe_stderr() functions,
+ * the latter of which add an easy interface for retrieving
+ * output from a child process that was opened with traditional
+ * popen() syntax (in write mode), while not breaking under
+ * earlier versions of PHP.
+ *
+ * @param string $command The command identifying what to
+ * execute in the child process.
+ * @param string $mode The desired mode for the
+ * unidirectional pipe that is returned;
+ * either 'r' for read or 'w' for write.
+ *
+ * @return resource A handle on the desired read or write pipe
+ * to the child process, or FALSE if the
+ * process cannot be created.
+ *
+ * @since 1.5.2
+ *
+ */
+function sq_popen($command, $mode) {
+
+ $mode = strtolower($mode{0});
+
+
+ if (!function_exists('proc_open'))
+ return popen($command, $mode);
+
+
+ // set up our process store if not done already
+ //
+ global $processes;
+ if (empty($processes))
+ $processes = array();
+
+
+ // define read, write and error pipes
+ //
+ $descriptors = array(0 => array('pipe', 'r'),
+ 1 => array('pipe', 'w'),
+ 2 => array('pipe', 'w'));
+
+
+ // start the child process
+ //
+ $proc = proc_open($command, $descriptors, $pipes);
+ if (!is_resource($proc))
+ return FALSE;
+
+
+ // when in read mode, we'll return a handle to the child's write pipe
+ //
+ if ($mode == 'r')
+ $return_value = $pipes[1];
+ else if ($mode == 'w')
+ $return_value = $pipes[0];
+ else
+ die('sq_popen() expects $mode to be "r" or "w"');
+
+
+ // store the handle to the process and its pipes
+ // internally, keyed by whatever handle we'll be
+ // returning
+ //
+ $processes[$return_value] = array($proc, $pipes);
+
+
+ return $return_value;
+
+}
+
+
+/**
+ * Get STDERR output from a child process
+ *
+ * This is designed to be used with processes that were
+ * opened with sq_popen(), and will return any output
+ * that may be available from STDERR of the child process
+ * at the current time.
+ *
+ * If a value is given for $timeout_seconds, this function
+ * will wait that long for output in case there is none
+ * right now.
+ *
+ * In PHP environments that do not support proc_open(),
+ * an empty string will always be returned.
+ *
+ * @param resource $handle The handle to the child process,
+ * as returned from sq_popen().
+ * @param int $timeout_seconds The number of seconds to wait
+ * for output if there is none
+ * available immediately (OPTIONAL;
+ * default is not to wait)
+ * @param boolean $quiet When TRUE, errors are silently
+ * ignored (OPTIONAL; default is TRUE).
+ *
+ * @return string Any STDERR output that may have been found.
+ *
+ * @since 1.5.2
+ *
+ */
+function sq_get_pipe_stderr($handle, $timeout_seconds=0, $quiet=TRUE) {
+
+ // yes, we are testing for proc_OPEN
+ // because we need to know how the
+ // handle was actually OPENED
+ //
+ if (!function_exists('proc_open'))
+ return '';
+
+
+ // get our process out of the process store
+ //
+ global $processes;
+ if (!is_array($processes) || !isset($processes[$handle])) {
+ if (!quiet) {
+ plain_error_message(_("Failed to find corresponding open process handle"));
+ }
+ return '';
}
- /**
- * Remove globalized server variables.
- */
- foreach ($_SERVER as $key => $value) {
- unset($GLOBALS[$key]);
+ $proc = $processes[$handle];
+
+
+ // get all we can from stderr, don't wait longer
+ // than our timeout for input
+ //
+ $contents = '';
+ $read = array($proc[1][2]);
+ $write = NULL;
+ $except = NULL;
+ if (stream_select($read, $write, $except, $timeout_seconds))
+ while (!feof($proc[1][2])) $contents .= fread($proc[1][2], 8192);
+ return $contents;
+
+}
+
+
+/**
+ * Get STDOUT output from a child process
+ *
+ * This is designed to be used with processes that were
+ * opened with sq_popen(), and will return any output
+ * that may be available from STDOUT of the child process
+ * at the current time.
+ *
+ * If a value is given for $timeout_seconds, this function
+ * will wait that long for output in case there is none
+ * right now.
+ *
+ * In PHP environments that do not support proc_open(),
+ * an empty string will always be returned.
+ *
+ * @param resource $handle The handle to the child process,
+ * as returned from sq_popen().
+ * @param int $timeout_seconds The number of seconds to wait
+ * for output if there is none
+ * available immediately (OPTIONAL;
+ * default is not to wait)
+ * @param boolean $quiet When TRUE, errors are silently
+ * ignored (OPTIONAL; default is TRUE).
+ *
+ * @return string Any STDOUT output that may have been found.
+ *
+ * @since 1.5.2
+ *
+ */
+function sq_get_pipe_stdout($handle, $timeout_seconds=0, $quiet=TRUE) {
+
+ // yes, we are testing for proc_OPEN
+ // because we need to know how the
+ // handle was actually OPENED
+ //
+ if (!function_exists('proc_open'))
+ return '';
+
+
+ // get our process out of the process store
+ //
+ global $processes;
+ if (!is_array($processes) || !isset($processes[$handle])) {
+ if (!quiet) {
+ plain_error_message(_("Failed to find corresponding open process handle"));
+ }
+ return '';
}
+ $proc = $processes[$handle];
+
+
+ // get all we can from stdout, don't wait longer
+ // than our timeout for input
+ //
+ $contents = '';
+ $read = array($proc[1][1]);
+ $write = NULL;
+ $except = NULL;
+ if (stream_select($read, $write, $except, $timeout_seconds))
+ while (!feof($proc[1][1])) $contents .= fread($proc[1][1], 8192);
+ return $contents;
+
}
-/* strip any tags added to the url from PHP_SELF.
- This fixes hand crafted url XXS expoits for any
- page that uses PHP_SELF as the FORM action */
-$_SERVER['PHP_SELF'] = strip_tags($_SERVER['PHP_SELF']);
-$PHP_SELF = php_self();
+/**
+ * SquirrelMail wrapper for pclose()/proc_close()
+ *
+ * This is designed to be used with processes that were
+ * opened with sq_popen(), and will correctly close
+ * all pipes/handles that were opened as well as the
+ * child process itself.
+ *
+ * @param resource $handle The handle to the child process,
+ * as returned from sq_popen().
+ * @param boolean $quiet When TRUE, errors are silently
+ * ignored (OPTIONAL; default is TRUE).
+ *
+ * @return int The termination status of the child process.
+ *
+ * @since 1.5.2
+ *
+ */
+function sq_pclose($handle, $quiet=TRUE) {
+
+ // yes, we are testing for proc_OPEN
+ // because we need to know how the
+ // handle was actually OPENED
+ //
+ if (!function_exists('proc_open'))
+ return pclose($handle);
+
+
+ // get our process out of the process store
+ //
+ global $processes;
+ if (!is_array($processes) || !isset($processes[$handle])) {
+ if (!quiet) {
+ plain_error_message(_("Failed to find corresponding open process handle"));
+ }
+ return 127;
+ }
+ $proc = $processes[$handle];
+ unset($processes[$handle]);
+
+
+ // close all pipes
+ //
+ fclose($proc[1][0]);
+ fclose($proc[1][1]);
+ fclose($proc[1][2]);
-sqsession_is_active();
-/**
- * Remove globalized session data in rg=on setups
- */
-if ((bool) @ini_get('register_globals')) {
- foreach ($_SESSION as $key => $value) {
- unset($GLOBALS[$key]);
+ // close process
+ //
+ return proc_close($proc[0]);
+
+}
+
+
+/**
+ * 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;
+
}
-?>
\ No newline at end of file