Adding upstream version 2.11.4.upstream/2.11.4upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 895 insertions, 0 deletions

diff --git a/library/vendor/Zend/Session.php b/library/vendor/Zend/Session.php
new file mode 100644
index 0000000..a1ed797
--- /dev/null
+++ b/library/vendor/Zend/Session.php
@@ -0,0 +1,895 @@
+<?php
+
+/**
+ * Zend Framework
+ *
+ * LICENSE
+ *
+ * This source file is subject to the new BSD license that is bundled
+ * with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * http://framework.zend.com/license/new-bsd
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@zend.com so we can send you a copy immediately.
+ *
+ * @category   Zend
+ * @package    Zend_Session
+ * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ * @version    $Id$
+ * @since      Preview Release 0.2
+ */
+
+
+/**
+ * @see Zend_Session_Abstract
+ */
+
+/**
+ * @see Zend_Session_Namespace
+ */
+
+/**
+ * @see Zend_Session_SaveHandler_Interface
+ */
+
+
+/**
+ * Zend_Session
+ *
+ * @category   Zend
+ * @package    Zend_Session
+ * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ */
+class Zend_Session extends Zend_Session_Abstract
+{
+    /**
+     * Whether or not Zend_Session is being used with unit tests
+     *
+     * @internal
+     * @var bool
+     */
+    public static $_unitTestEnabled = false;
+
+    /**
+     * $_throwStartupException
+     *
+     * @var bool|bitset This could also be a combiniation of error codes to catch
+     */
+    protected static $_throwStartupExceptions = true;
+
+    /**
+     * Check whether or not the session was started
+     *
+     * @var bool
+     */
+    private static $_sessionStarted = false;
+
+    /**
+     * Whether or not the session id has been regenerated this request.
+     *
+     * Id regeneration state
+     * <0 - regenerate requested when session is started
+     * 0  - do nothing
+     * >0 - already called session_regenerate_id()
+     *
+     * @var int
+     */
+    private static $_regenerateIdState = 0;
+
+    /**
+     * Private list of php's ini values for ext/session
+     * null values will default to the php.ini value, otherwise
+     * the value below will overwrite the default ini value, unless
+     * the user has set an option explicity with setOptions()
+     *
+     * @var array
+     */
+    private static $_defaultOptions = array(
+        'save_path'                 => null,
+        'name'                      => null, /* this should be set to a unique value for each application */
+        'save_handler'              => null,
+        //'auto_start'                => null, /* intentionally excluded (see manual) */
+        'gc_probability'            => null,
+        'gc_divisor'                => null,
+        'gc_maxlifetime'            => null,
+        'serialize_handler'         => null,
+        'cookie_lifetime'           => null,
+        'cookie_path'               => null,
+        'cookie_domain'             => null,
+        'cookie_secure'             => null,
+        'cookie_httponly'           => null,
+        'use_cookies'               => null,
+        'use_only_cookies'          => 'on',
+        'referer_check'             => null,
+        'entropy_file'              => null,
+        'entropy_length'            => null,
+        'cache_limiter'             => null,
+        'cache_expire'              => null,
+        'use_trans_sid'             => null,
+        'bug_compat_42'             => null,
+        'bug_compat_warn'           => null,
+        'hash_function'             => null,
+        'hash_bits_per_character'   => null
+    );
+
+    /**
+     * List of options pertaining to Zend_Session that can be set by developers
+     * using Zend_Session::setOptions(). This list intentionally duplicates
+     * the individual declaration of static "class" variables by the same names.
+     *
+     * @var array
+     */
+    private static $_localOptions = array(
+        'strict'                => '_strict',
+        'remember_me_seconds'   => '_rememberMeSeconds',
+        'throw_startup_exceptions' => '_throwStartupExceptions'
+    );
+
+    /**
+     * Whether or not write close has been performed.
+     *
+     * @var bool
+     */
+    private static $_writeClosed = false;
+
+    /**
+     * Whether or not session id cookie has been deleted
+     *
+     * @var bool
+     */
+    private static $_sessionCookieDeleted = false;
+
+    /**
+     * Whether or not session has been destroyed via session_destroy()
+     *
+     * @var bool
+     */
+    private static $_destroyed = false;
+
+    /**
+     * Whether or not session must be initiated before usage
+     *
+     * @var bool
+     */
+    private static $_strict = false;
+
+    /**
+     * Default number of seconds the session will be remembered for when asked to be remembered
+     *
+     * @var int
+     */
+    private static $_rememberMeSeconds = 1209600; // 2 weeks
+
+    /**
+     * Whether the default options listed in Zend_Session::$_localOptions have been set
+     *
+     * @var bool
+     */
+    private static $_defaultOptionsSet = false;
+
+    /**
+     * A reference to the set session save handler
+     *
+     * @var Zend_Session_SaveHandler_Interface
+     */
+    private static $_saveHandler = null;
+
+
+    /**
+     * Constructor overriding - make sure that a developer cannot instantiate
+     */
+    protected function __construct()
+    {
+    }
+
+
+    /**
+     * setOptions - set both the class specified
+     *
+     * @param  array $userOptions - pass-by-keyword style array of <option name, option value> pairs
+     * @throws Zend_Session_Exception
+     * @return void
+     */
+    public static function setOptions(array $userOptions = array())
+    {
+        // set default options on first run only (before applying user settings)
+        if (!self::$_defaultOptionsSet) {
+            foreach (self::$_defaultOptions as $defaultOptionName => $defaultOptionValue) {
+                if (isset(self::$_defaultOptions[$defaultOptionName])) {
+                    ini_set("session.$defaultOptionName", $defaultOptionValue);
+                }
+            }
+
+            self::$_defaultOptionsSet = true;
+        }
+
+        // set the options the user has requested to set
+        foreach ($userOptions as $userOptionName => $userOptionValue) {
+
+            $userOptionName = strtolower($userOptionName);
+
+            // set the ini based values
+            if (array_key_exists($userOptionName, self::$_defaultOptions)) {
+                ini_set("session.$userOptionName", $userOptionValue);
+            }
+            elseif (isset(self::$_localOptions[$userOptionName])) {
+                self::${self::$_localOptions[$userOptionName]} = $userOptionValue;
+            }
+            else {
+                /** @see Zend_Session_Exception */
+                throw new Zend_Session_Exception("Unknown option: $userOptionName = $userOptionValue");
+            }
+        }
+    }
+
+    /**
+     * getOptions()
+     *
+     * @param string $optionName OPTIONAL
+     * @return array|string
+     */
+    public static function getOptions($optionName = null)
+    {
+        $options = array();
+        foreach (ini_get_all('session') as $sysOptionName => $sysOptionValues) {
+            $options[substr($sysOptionName, 8)] = $sysOptionValues['local_value'];
+        }
+        foreach (self::$_localOptions as $localOptionName => $localOptionMemberName) {
+            $options[$localOptionName] = self::${$localOptionMemberName};
+        }
+
+        if ($optionName) {
+            if (array_key_exists($optionName, $options)) {
+                return $options[$optionName];
+            }
+            return null;
+        }
+
+        return $options;
+    }
+
+    /**
+     * setSaveHandler() - Session Save Handler assignment
+     *
+     * @param Zend_Session_SaveHandler_Interface $interface
+     * @throws Zend_Session_Exception When the session_set_save_handler call fails
+     * @return void
+     */
+    public static function setSaveHandler(Zend_Session_SaveHandler_Interface $saveHandler)
+    {
+        self::$_saveHandler = $saveHandler;
+
+        if (self::$_unitTestEnabled) {
+            return;
+        }
+
+        $result = session_set_save_handler(
+            array(&$saveHandler, 'open'),
+            array(&$saveHandler, 'close'),
+            array(&$saveHandler, 'read'),
+            array(&$saveHandler, 'write'),
+            array(&$saveHandler, 'destroy'),
+            array(&$saveHandler, 'gc')
+            );
+
+        if (!$result) {
+            throw new Zend_Session_Exception('Unable to set session handler');
+        }
+    }
+
+
+    /**
+     * getSaveHandler() - Get the session Save Handler
+     *
+     * @return Zend_Session_SaveHandler_Interface
+     */
+    public static function getSaveHandler()
+    {
+        return self::$_saveHandler;
+    }
+
+
+    /**
+     * regenerateId() - Regenerate the session id.  Best practice is to call this after
+     * session is started.  If called prior to session starting, session id will be regenerated
+     * at start time.
+     *
+     * @throws Zend_Session_Exception
+     * @return void
+     */
+    public static function regenerateId()
+    {
+        if (!self::$_unitTestEnabled && headers_sent($filename, $linenum)) {
+            /** @see Zend_Session_Exception */
+            throw new Zend_Session_Exception("You must call " . __CLASS__ . '::' . __FUNCTION__ .
+                "() before any output has been sent to the browser; output started in {$filename}/{$linenum}");
+        }
+
+        if ( !self::$_sessionStarted ) {
+            self::$_regenerateIdState = -1;
+        } else {
+            if (!self::$_unitTestEnabled) {
+                session_regenerate_id(true);
+            }
+            self::$_regenerateIdState = 1;
+        }
+    }
+
+
+    /**
+     * rememberMe() - Write a persistent cookie that expires after a number of seconds in the future. If no number of
+     * seconds is specified, then this defaults to self::$_rememberMeSeconds.  Due to clock errors on end users' systems,
+     * large values are recommended to avoid undesirable expiration of session cookies.
+     *
+     * @param int $seconds OPTIONAL specifies TTL for cookie in seconds from present time
+     * @return void
+     */
+    public static function rememberMe($seconds = null)
+    {
+        $seconds = (int) $seconds;
+        $seconds = ($seconds > 0) ? $seconds : self::$_rememberMeSeconds;
+
+        self::rememberUntil($seconds);
+    }
+
+
+    /**
+     * forgetMe() - Write a volatile session cookie, removing any persistent cookie that may have existed. The session
+     * would end upon, for example, termination of a web browser program.
+     *
+     * @return void
+     */
+    public static function forgetMe()
+    {
+        self::rememberUntil(0);
+    }
+
+
+    /**
+     * rememberUntil() - This method does the work of changing the state of the session cookie and making
+     * sure that it gets resent to the browser via regenerateId()
+     *
+     * @param int $seconds
+     * @return void
+     */
+    public static function rememberUntil($seconds = 0)
+    {
+        if (self::$_unitTestEnabled) {
+            self::regenerateId();
+            return;
+        }
+
+        $cookieParams = session_get_cookie_params();
+
+        session_set_cookie_params(
+            $seconds,
+            $cookieParams['path'],
+            $cookieParams['domain'],
+            $cookieParams['secure']
+            );
+
+        // normally "rememberMe()" represents a security context change, so should use new session id
+        self::regenerateId();
+    }
+
+
+    /**
+     * sessionExists() - whether or not a session exists for the current request
+     *
+     * @return bool
+     */
+    public static function sessionExists()
+    {
+        if ((bool)ini_get('session.use_cookies') == true && isset($_COOKIE[session_name()])) {
+            return true;
+        } elseif ((bool)ini_get('session.use_only_cookies') == false && isset($_REQUEST[session_name()])) {
+            return true;
+        } elseif (self::$_unitTestEnabled) {
+            return true;
+        }
+
+        return false;
+    }
+
+
+    /**
+     * Whether or not session has been destroyed via session_destroy()
+     *
+     * @return bool
+     */
+    public static function isDestroyed()
+    {
+        return self::$_destroyed;
+    }
+
+
+    /**
+     * start() - Start the session.
+     *
+     * @param bool|array $options  OPTIONAL Either user supplied options, or flag indicating if start initiated automatically
+     * @throws Zend_Session_Exception
+     * @return void
+     */
+    public static function start($options = false)
+    {
+        // Check to see if we've been passed an invalid session ID
+        if ( self::getId() && !self::_checkId(self::getId()) ) {
+            // Generate a valid, temporary replacement
+            self::setId(md5(self::getId()));
+            // Force a regenerate after session is started
+            self::$_regenerateIdState = -1;
+        }
+
+        if (self::$_sessionStarted && self::$_destroyed) {
+            throw new Zend_Session_Exception('The session was explicitly destroyed during this request, attempting to re-start is not allowed.');
+        }
+
+        if (self::$_sessionStarted) {
+            return; // already started
+        }
+
+        // make sure our default options (at the least) have been set
+        if (!self::$_defaultOptionsSet) {
+            self::setOptions(is_array($options) ? $options : array());
+        }
+
+        // In strict mode, do not allow auto-starting Zend_Session, such as via "new Zend_Session_Namespace()"
+        if (self::$_strict && $options === true) {
+            /** @see Zend_Session_Exception */
+            throw new Zend_Session_Exception('You must explicitly start the session with Zend_Session::start() when session options are set to strict.');
+        }
+
+        $filename = $linenum = null;
+        if (!self::$_unitTestEnabled && headers_sent($filename, $linenum)) {
+            /** @see Zend_Session_Exception */
+            throw new Zend_Session_Exception("Session must be started before any output has been sent to the browser;"
+               . " output started in {$filename}/{$linenum}");
+        }
+
+        // See http://www.php.net/manual/en/ref.session.php for explanation
+        if (!self::$_unitTestEnabled && defined('SID')) {
+            /** @see Zend_Session_Exception */
+            throw new Zend_Session_Exception('session has already been started by session.auto-start or session_start()');
+        }
+
+        /**
+         * Hack to throw exceptions on start instead of php errors
+         * @see http://framework.zend.com/issues/browse/ZF-1325
+         */
+
+        $errorLevel = (is_int(self::$_throwStartupExceptions)) ? self::$_throwStartupExceptions : E_ALL;
+
+        /** @see Zend_Session_Exception */
+        if (!self::$_unitTestEnabled) {
+
+            if (self::$_throwStartupExceptions) {
+                set_error_handler(array('Zend_Session_Exception', 'handleSessionStartError'), $errorLevel);
+            }
+
+            $startedCleanly = session_start();
+
+            if (self::$_throwStartupExceptions) {
+                restore_error_handler();
+            }
+
+            if (!$startedCleanly || Zend_Session_Exception::$sessionStartError != null) {
+                if (self::$_throwStartupExceptions) {
+                    set_error_handler(array('Zend_Session_Exception', 'handleSilentWriteClose'), $errorLevel);
+                }
+                session_write_close();
+                if (self::$_throwStartupExceptions) {
+                    restore_error_handler();
+                    throw new Zend_Session_Exception(__CLASS__ . '::' . __FUNCTION__ . '() - ' . Zend_Session_Exception::$sessionStartError);
+                }
+            }
+        }
+
+        parent::$_readable = true;
+        parent::$_writable = true;
+        self::$_sessionStarted = true;
+        if (self::$_regenerateIdState === -1) {
+            self::regenerateId();
+        }
+
+        // run validators if they exist
+        if (isset($_SESSION['__ZF']['VALID'])) {
+            self::_processValidators();
+        }
+
+        self::_processStartupMetadataGlobal();
+    }
+
+    /**
+     * Perform a hash-bits check on the session ID
+     *
+     * @param string $id Session ID
+     * @return bool
+     */
+    protected static function _checkId($id)
+    {
+        $saveHandler = ini_get('session.save_handler');
+        if ($saveHandler == 'cluster') { // Zend Server SC, validate only after last dash
+            $dashPos = strrpos($id, '-');
+            if ($dashPos) {
+                $id = substr($id, $dashPos + 1);
+            }
+        }
+
+        $hashBitsPerChar = ini_get('session.hash_bits_per_character');
+        if (!$hashBitsPerChar) {
+            $hashBitsPerChar = 5; // the default value
+        }
+        switch($hashBitsPerChar) {
+            case 4: $pattern = '^[0-9a-f]*$'; break;
+            case 5: $pattern = '^[0-9a-v]*$'; break;
+            case 6: $pattern = '^[0-9a-zA-Z-,]*$'; break;
+        }
+        return preg_match('#'.$pattern.'#', $id);
+    }
+
+
+    /**
+     * _processGlobalMetadata() - this method initizes the sessions GLOBAL
+     * metadata, mostly global data expiration calculations.
+     *
+     * @return void
+     */
+    private static function _processStartupMetadataGlobal()
+    {
+        // process global metadata
+        if (isset($_SESSION['__ZF'])) {
+
+            // expire globally expired values
+            foreach ($_SESSION['__ZF'] as $namespace => $namespace_metadata) {
+
+                // Expire Namespace by Time (ENT)
+                if (isset($namespace_metadata['ENT']) && ($namespace_metadata['ENT'] > 0) && (time() > $namespace_metadata['ENT']) ) {
+                    unset($_SESSION[$namespace]);
+                    unset($_SESSION['__ZF'][$namespace]);
+                }
+
+                // Expire Namespace by Global Hop (ENGH) if it wasnt expired above
+                if (isset($_SESSION['__ZF'][$namespace]) && isset($namespace_metadata['ENGH']) && $namespace_metadata['ENGH'] >= 1) {
+
+                    $_SESSION['__ZF'][$namespace]['ENGH']--;
+
+                    if ($_SESSION['__ZF'][$namespace]['ENGH'] === 0) {
+                        if (isset($_SESSION[$namespace])) {
+                            parent::$_expiringData[$namespace] = $_SESSION[$namespace];
+                            unset($_SESSION[$namespace]);
+                        }
+                        unset($_SESSION['__ZF'][$namespace]);
+                    }
+                }
+
+                // Expire Namespace Variables by Time (ENVT)
+                if (isset($namespace_metadata['ENVT'])) {
+                    foreach ($namespace_metadata['ENVT'] as $variable => $time) {
+                        if (time() > $time) {
+                            unset($_SESSION[$namespace][$variable]);
+                            unset($_SESSION['__ZF'][$namespace]['ENVT'][$variable]);
+                        }
+                    }
+                    if (empty($_SESSION['__ZF'][$namespace]['ENVT'])) {
+                        unset($_SESSION['__ZF'][$namespace]['ENVT']);
+                    }
+                }
+
+                // Expire Namespace Variables by Global Hop (ENVGH)
+                if (isset($namespace_metadata['ENVGH'])) {
+                    foreach ($namespace_metadata['ENVGH'] as $variable => $hops) {
+                        $_SESSION['__ZF'][$namespace]['ENVGH'][$variable]--;
+
+                        if ($_SESSION['__ZF'][$namespace]['ENVGH'][$variable] === 0) {
+                            if (isset($_SESSION[$namespace][$variable])) {
+                                parent::$_expiringData[$namespace][$variable] = $_SESSION[$namespace][$variable];
+                                unset($_SESSION[$namespace][$variable]);
+                            }
+                            unset($_SESSION['__ZF'][$namespace]['ENVGH'][$variable]);
+                        }
+                    }
+                    if (empty($_SESSION['__ZF'][$namespace]['ENVGH'])) {
+                        unset($_SESSION['__ZF'][$namespace]['ENVGH']);
+                    }
+                }
+                
+                if (isset($namespace) && empty($_SESSION['__ZF'][$namespace])) {
+                    unset($_SESSION['__ZF'][$namespace]);
+                }
+            }
+        }
+
+        if (isset($_SESSION['__ZF']) && empty($_SESSION['__ZF'])) {
+            unset($_SESSION['__ZF']);
+        }
+    }
+
+
+    /**
+     * isStarted() - convenience method to determine if the session is already started.
+     *
+     * @return bool
+     */
+    public static function isStarted()
+    {
+        return self::$_sessionStarted;
+    }
+
+
+    /**
+     * isRegenerated() - convenience method to determine if session_regenerate_id()
+     * has been called during this request by Zend_Session.
+     *
+     * @return bool
+     */
+    public static function isRegenerated()
+    {
+        return ( (self::$_regenerateIdState > 0) ? true : false );
+    }
+
+
+    /**
+     * getId() - get the current session id
+     *
+     * @return string
+     */
+    public static function getId()
+    {
+        return session_id();
+    }
+
+
+    /**
+     * setId() - set an id to a user specified id
+     *
+     * @throws Zend_Session_Exception
+     * @param string $id
+     * @return void
+     */
+    public static function setId($id)
+    {
+        if (!self::$_unitTestEnabled && defined('SID')) {
+            /** @see Zend_Session_Exception */
+            throw new Zend_Session_Exception('The session has already been started.  The session id must be set first.');
+        }
+
+        if (!self::$_unitTestEnabled && headers_sent($filename, $linenum)) {
+            /** @see Zend_Session_Exception */
+            throw new Zend_Session_Exception("You must call ".__CLASS__.'::'.__FUNCTION__.
+                "() before any output has been sent to the browser; output started in {$filename}/{$linenum}");
+        }
+
+        if (!is_string($id) || $id === '') {
+            /** @see Zend_Session_Exception */
+            throw new Zend_Session_Exception('You must provide a non-empty string as a session identifier.');
+        }
+
+        session_id($id);
+    }
+
+
+    /**
+     * registerValidator() - register a validator that will attempt to validate this session for
+     * every future request
+     *
+     * @param Zend_Session_Validator_Interface $validator
+     * @return void
+     */
+    public static function registerValidator(Zend_Session_Validator_Interface $validator)
+    {
+        $validator->setup();
+    }
+
+
+    /**
+     * stop() - Disable write access.  Optionally disable read (not implemented).
+     *
+     * @return void
+     */
+    public static function stop()
+    {
+        parent::$_writable = false;
+    }
+
+
+    /**
+     * writeClose() - Shutdown the sesssion, close writing and detach $_SESSION from the back-end storage mechanism.
+     * This will complete the internal data transformation on this request.
+     *
+     * @param bool $readonly - OPTIONAL remove write access (i.e. throw error if Zend_Session's attempt writes)
+     * @return void
+     */
+    public static function writeClose($readonly = true)
+    {
+        if (self::$_unitTestEnabled) {
+            return;
+        }
+
+        if (self::$_writeClosed) {
+            return;
+        }
+
+        if ($readonly) {
+            parent::$_writable = false;
+        }
+
+        session_write_close();
+        self::$_writeClosed = true;
+    }
+
+
+    /**
+     * destroy() - This is used to destroy session data, and optionally, the session cookie itself
+     *
+     * @param bool $remove_cookie - OPTIONAL remove session id cookie, defaults to true (remove cookie)
+     * @param bool $readonly - OPTIONAL remove write access (i.e. throw error if Zend_Session's attempt writes)
+     * @return void
+     */
+    public static function destroy($remove_cookie = true, $readonly = true)
+    {
+        if (self::$_unitTestEnabled) {
+            return;
+        }
+
+        if (self::$_destroyed) {
+            return;
+        }
+
+        if ($readonly) {
+            parent::$_writable = false;
+        }
+
+        session_destroy();
+        self::$_destroyed = true;
+
+        if ($remove_cookie) {
+            self::expireSessionCookie();
+        }
+    }
+
+
+    /**
+     * expireSessionCookie() - Sends an expired session id cookie, causing the client to delete the session cookie
+     *
+     * @return void
+     */
+    public static function expireSessionCookie()
+    {
+        if (self::$_unitTestEnabled) {
+            return;
+        }
+
+        if (self::$_sessionCookieDeleted) {
+            return;
+        }
+
+        self::$_sessionCookieDeleted = true;
+
+        if (isset($_COOKIE[session_name()])) {
+            $cookie_params = session_get_cookie_params();
+
+            setcookie(
+                session_name(),
+                false,
+                315554400, // strtotime('1980-01-01'),
+                $cookie_params['path'],
+                $cookie_params['domain'],
+                $cookie_params['secure']
+                );
+        }
+    }
+
+
+    /**
+     * _processValidator() - internal function that is called in the existence of VALID metadata
+     *
+     * @throws Zend_Session_Exception
+     * @return void
+     */
+    private static function _processValidators()
+    {
+        foreach ($_SESSION['__ZF']['VALID'] as $validator_name => $valid_data) {
+            if (!class_exists($validator_name)) {
+                Zend_Loader::loadClass($validator_name);
+            }
+            $validator = new $validator_name;
+            if ($validator->validate() === false) {
+                /** @see Zend_Session_Validator_Exception */
+                throw new Zend_Session_Validator_Exception("This session is not valid according to {$validator_name}.");
+            }
+        }
+    }
+
+
+    /**
+     * namespaceIsset() - check to see if a namespace is set
+     *
+     * @param string $namespace
+     * @return bool
+     */
+    public static function namespaceIsset($namespace)
+    {
+        return parent::_namespaceIsset($namespace);
+    }
+
+
+    /**
+     * namespaceUnset() - unset a namespace or a variable within a namespace
+     *
+     * @param string $namespace
+     * @throws Zend_Session_Exception
+     * @return void
+     */
+    public static function namespaceUnset($namespace)
+    {
+        parent::_namespaceUnset($namespace);
+        Zend_Session_Namespace::resetSingleInstance($namespace);
+    }
+
+
+    /**
+     * namespaceGet() - get all variables in a namespace
+     * Deprecated: Use getIterator() in Zend_Session_Namespace.
+     *
+     * @param string $namespace
+     * @return array
+     */
+    public static function namespaceGet($namespace)
+    {
+        return parent::_namespaceGetAll($namespace);
+    }
+
+
+    /**
+     * getIterator() - return an iteratable object for use in foreach and the like,
+     * this completes the IteratorAggregate interface
+     *
+     * @throws Zend_Session_Exception
+     * @return ArrayObject
+     */
+    public static function getIterator()
+    {
+        if (parent::$_readable === false) {
+            /** @see Zend_Session_Exception */
+            throw new Zend_Session_Exception(parent::_THROW_NOT_READABLE_MSG);
+        }
+
+        $spaces  = array();
+        if (isset($_SESSION)) {
+            $spaces = array_keys($_SESSION);
+            foreach($spaces as $key => $space) {
+                if (!strncmp($space, '__', 2) || !is_array($_SESSION[$space])) {
+                    unset($spaces[$key]);
+                }
+            }
+        }
+
+        return new ArrayObject(array_merge($spaces, array_keys(parent::$_expiringData)));
+    }
+
+
+    /**
+     * isWritable() - returns a boolean indicating if namespaces can write (use setters)
+     *
+     * @return bool
+     */
+    public static function isWritable()
+    {
+        return parent::$_writable;
+    }
+
+
+    /**
+     * isReadable() - returns a boolean indicating if namespaces can write (use setters)
+     *
+     * @return bool
+     */
+    public static function isReadable()
+    {
+        return parent::$_readable;
+    }
+
+}