class.ilMailFormCall.php

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<?php
/* Copyright (c) 1998-2012 ILIAS open source, Extended GPL, see docs/LICENSE */
 
class ilMailFormCall
{
        const SESSION_KEY = 'mail_transport';
        
        const REFERER_KEY = 'r';
 
        const SIGNATURE_KEY = 'sig';
 
        const CONTEXT_PREFIX = 'ctx';
 
        const CONTEXT_KEY = 'ctx_template';
 
        public static function getLinkTarget($gui, $cmd, Array $gui_params = array(), Array $mail_params = array(), $context_params = array())
        {
                return self::getTargetUrl('&amp;', $gui, $cmd, $gui_params, $mail_params, $context_params);
        }
 
        public static function getRedirectTarget($gui, $cmd, array $gui_params = array(), array $mail_params = array(), array $context_params = array())
        {
                return self::getTargetUrl('&', $gui, $cmd, $gui_params, $mail_params, $context_params);
        }
 
        protected static function getTargetUrl($argument_separator, $gui, $cmd, array $gui_params = array(), array $mail_params = array(), array $context_params = array())
        {
                $mparams = '';
                $referer = '';
 
                foreach($mail_params as $key => $value)
                {
                        $mparams .= $argument_separator . $key . '=' . urlencode($value);
                }
 
                foreach($context_params as $key => $value)
                {
                        if($key == self::CONTEXT_KEY)
                        {
                                $mparams .= $argument_separator . $key . '=' . urlencode($value);
                        }
                        else
                        {
                                $mparams .= $argument_separator . self::CONTEXT_PREFIX . '_' . $key . '=' . urlencode($value);
                        }
                }
 
                if(is_object($gui))
                {
                        global $ilCtrl;
                        $ilCtrlTmp = clone $ilCtrl;
                        foreach($gui_params as $key => $value)
                        {
                                $ilCtrlTmp->setParameter($gui, $key, $value);
                        }
                        $referer = $ilCtrlTmp->getLinkTarget($gui, $cmd, '', false, false);
                }
                else if(is_string($gui))
                {
                        $referer = $gui;
                }
 
                $referer = $argument_separator . self::REFERER_KEY . '=' . rawurlencode(base64_encode($referer));
 
                return 'ilias.php?baseClass=ilMailGUI' . $referer . $mparams;
        }
 
        public static function storeReferer($request_params)
        {
                $session = ilSession::get(self::SESSION_KEY);
                if(isset($request_params[self::REFERER_KEY]))
                {
                        $session[self::REFERER_KEY]   = base64_decode(rawurldecode($request_params[self::REFERER_KEY]));
                        $session[self::SIGNATURE_KEY] = base64_decode(rawurldecode($request_params[self::SIGNATURE_KEY]));
 
                        $ctx_params = array();
                        foreach($request_params as $key => $value)
                        {
                                $prefix = substr($key, 0, strlen(self::CONTEXT_PREFIX));
                                if($prefix == self::CONTEXT_PREFIX)
                                {
                                        if($key == self::CONTEXT_KEY)
                                        {
                                                $ctx_params[$key] = $value;
                                        }
                                        else
                                        {
                                                $ctx_params[substr($key, strlen(self::CONTEXT_PREFIX . '_'))] = $value;
                                        }
                                }
                        }
                        $session[self::CONTEXT_PREFIX] = $ctx_params;
                }
                else
                {
                        unset($session[self::REFERER_KEY]);
                        unset($session[self::SIGNATURE_KEY]);
                        unset($session[self::CONTEXT_PREFIX]);
                }
                ilSession::set(self::SESSION_KEY, $session);
        }
 
        public static function getSignature()
        {
                $session = ilSession::get(self::SESSION_KEY);
 
                $sig = $session[self::SIGNATURE_KEY];
 
                unset($session[self::SIGNATURE_KEY]);
                ilSession::set(self::SESSION_KEY, $session);
 
                return $sig;
        }
 
        public static function getRefererRedirectUrl()
        {
                $session = ilSession::get(self::SESSION_KEY);
 
                $url = $session[self::REFERER_KEY];
                if(strlen($url))
                {
                        $parts = parse_url($url);
                        if(isset($parts['query']) && strlen($parts['query']))
                        {
                                $url .= '&returned_from_mail=1';
                        }
                        else
                        {
                                $url .= '?returned_from_mail=1';
                        }
                }
 
                unset($session[self::REFERER_KEY]);
                ilSession::set(self::SESSION_KEY, $session);
 
                return $url;
        }
 
        public static function isRefererStored()
        {
                $session = ilSession::get(self::SESSION_KEY);
                return isset($session[self::REFERER_KEY]) && strlen($session[self::REFERER_KEY]) ? true : false;
        }
 
        public static function getContextId()
        {
                $session = ilSession::get(self::SESSION_KEY);
                return ( 
                        isset($session[self::CONTEXT_PREFIX][self::CONTEXT_KEY]) &&
                        strlen($session[self::CONTEXT_PREFIX][self::CONTEXT_KEY]) ?
                        $session[self::CONTEXT_PREFIX][self::CONTEXT_KEY] : NULL
                );
        }
 
        public static function setContextId($id)
        {
                $session = ilSession::get(self::SESSION_KEY);
                $session[self::CONTEXT_KEY] = $id;
                ilSession::set(self::SESSION_KEY, $session);
        }
 
        public static function getContextParameters()
        {
                $session = ilSession::get(self::SESSION_KEY);
                if(isset($session[self::CONTEXT_PREFIX]))
                {
                        return (array)$session[self::CONTEXT_PREFIX];
                }
                return array();
        }
 
        public static function setContextParameters(array $parameters)
        {
                $session = ilSession::get(self::SESSION_KEY);
                $session[self::CONTEXT_PREFIX] = $parameters;
                ilSession::set(self::SESSION_KEY, $session);
        }
 
        public static function setRecipients(array $recipients)
        {
                $session = ilSession::get(self::SESSION_KEY);
                $session['rcp_to'] = $recipients;
                ilSession::set(self::SESSION_KEY, $session);
        }
 
        public static function getRecipients()
        {
                $session = ilSession::get(self::SESSION_KEY);
                return (array)$session['rcp_to'];
        }
}