Magento get URL before current - php

Question

I want to get URL before the current one in Magento and check if is shopping cart and checkout page. For example now I am in the My account page, I want to check if the visited page before My account was Shopping Cart page.
I try to add this function but is not work because my last URL is login, not
shopping cart
public function customerRegistration(Varien_Event_Observer $observer)
{
$lastUrl = Mage::getSingleton('core/session')->getLastUrl();
if(preg_match("#onestepcheckout/index#", $lastUrl)){
Mage::app()->getFrontController()->getResponse()->setRedirect(Mage::getUrl('onestepcheckout/index'));
Mage::app()->getResponse()->sendResponse();
exit;
}
else{
Mage::app()->getFrontController()->getResponse()->setRedirect(Mage::getUrl('customer/account'));
Mage::app()->getResponse()->sendResponse();
exit;
}
}
Update:
i find a solution, to redirect after register to checkout page if there exist a product in cart, but is a problem, after register is complete in the checkout the Billing fields is not complete and the user is not login. Anyone?
New Update:
This is what I made to redirect after login and it is work perfect, I need to do the same for Register. The problem with Register is because here the lastUrl is login. Anyone? with any idea?
public function customerLogin(Varien_Event_Observer $observer)
{
if (Mage::helper('customerredirect')->isEnabled() && !Mage::getSingleton("core/session")->getRedirectregister()){
$lasturl = Mage::getSingleton('core/session')->getLastUrl();
if (strpos(Mage::helper('core/http')->getHttpReferer(), 'checkout') === false){
if (! preg_match("#customer/account/create#", $lasturl) && Mage::helper('customerredirect')->isoptionEnabled('login_customerredirect')) {
if(Mage::getSingleton('core/session')->getIsFromCart() == 1 || Mage::getSingleton('core/session')->getIsFromCheckout() == 1){
Mage::app()->getFrontController()->getResponse()->setRedirect(Mage::getUrl('onestepcheckout/index'));
Mage::app()->getResponse()->sendResponse();
exit;
}
else
{
Mage::app()->getFrontController()->getResponse()->setRedirect(Mage::getUrl('customer/account'));
Mage::app()->getResponse()->sendResponse();
exit;
}
}
}
}
Mage::getSingleton("core/session")->setRedirectregister(false);
Mage::getSingleton('core/session')->setIsFromCart('0');
Mage::getSingleton('core/session')->setIsFromCheckout('0');
}
Update:
A good developer told me that is a way to do this. To add an event before going to register page then add an event observer after registration is complete and then check what is necessary. But I don't know to do this, maybe someone can help me with this? Thank you
Thank you
My Original Code
public function customerLogin(Varien_Event_Observer $observer)
{
if (Mage::helper('customerredirect')->isEnabled() && !Mage::getSingleton("core/session")->getRedirectregister()){
$lasturl = Mage::getSingleton('core/session')->getLastUrl();
if (strpos(Mage::helper('core/http')->getHttpReferer(), 'checkout') === false){
if (! preg_match("#customer/account/create#", $lasturl) && Mage::helper('customerredirect')->isoptionEnabled('login_customerredirect')) {
if(Mage::getSingleton('core/session')->getIsFromCart() == 1 || Mage::getSingleton('core/session')->getIsFromCheckout() == 1){
Mage::app()->getFrontController()->getResponse()->setRedirect(Mage::getUrl('onestepcheckout/index'));
Mage::app()->getResponse()->sendResponse();
exit;
}
else
{
Mage::app()->getFrontController()->getResponse()->setRedirect(Mage::getUrl('customer/account'));
Mage::app()->getResponse()->sendResponse();
exit;
}
}
}
}
Mage::getSingleton("core/session")->setRedirectregister(false);
Mage::getSingleton('core/session')->setIsFromCart('0');
Mage::getSingleton('core/session')->setIsFromCheckout('0');
}
/*method for SignUp Customerredirect*/
public function customerRegistration(Varien_Event_Observer $observer)
{
Mage::getSingleton("core/session")->setRedirectregister(true);
if (Mage::helper('customerredirect')->isEnabled() && Mage::helper('customerredirect')->isoptionEnabled('registration_customerredirect') ) {
$_session = $this->_getSession();
$_session->setBeforeAuthUrl(Mage::helper('customerredirect')->setRedirectOnSignup());
}
}
This is my config.xml of this extension
<events>
<customer_login>
<observers>
<customerredirect>
<class>customerredirect/observer_customer</class>
<method>customerLogin</method>
</customerredirect>
</observers>
</customer_login>
<customer_register_success>
<observers>
<customerredirect>
<class>customerredirect/observer_customer</class>
<method>customerRegistration</method>
</customerredirect>
</observers>
</customer_register_success>
</events>
So all I want now is the Register page to work like Login, In present the login redirection is perfect, but for Register always I am redirect to My Account page. Not to the checkout page.
New Option:
if (strpos(Mage::getSingleton('core/session')->getLastUrl(), 'checkout/cart') !== false) {
Mage::getSingleton('core/session')->setIsFromCart('1');
} else {
Mage::getSingleton('core/session')->setIsFromCart('0');
}
if (strpos(Mage::getSingleton('core/session')->getLastUrl(), 'onestepcheckout/index') !== false) {
Mage::getSingleton('core/session')->setIsFromCheckout('1');
} else {
Mage::getSingleton('core/session')->setIsFromCheckout('0');
}

Answer 1

There is an easier solution.
Create an override of:
/app/code/core/Mage/Customer/controllers/AccountController.php
Copy _loginPostRedirect() method
In the newly created file, in _loginPostRedirect method edit:
FROM:
$this->_redirectUrl($session->getBeforeAuthUrl(true));
TO:
$sUrl = $session->getBeforeAuthUrl( TRUE );
// Do url exclusions and conditional checks here
// Force user to go home on login.
$sUrl = Mage::getBaseUrl();
$this->_redirectUrl( $sUrl );
Cleaned up with your conditionals (they are a bit convoluted):
$sUrl = $session->getBeforeAuthUrl( TRUE );
if (Mage::helper('customerredirect')->isEnabled() && !Mage::getSingleton("core/session")->getRedirectregister())
{
$lasturl = Mage::getSingleton('core/session')->getLastUrl();
if (strpos(Mage::helper('core/http')->getHttpReferer(), 'checkout') === false)
{
if (! preg_match("#customer/account/create#", $lasturl) && Mage::helper('customerredirect')->isoptionEnabled('login_customerredirect'))
{
if( Mage::getSingleton('core/session')->getIsFromCart() == 1 || Mage::getSingleton('core/session')->getIsFromCheckout() == 1 )
{
$sUrl = Mage::getUrl('onestepcheckout/index');
}
else
{
$sUrl = Mage::getUrl('customer/account');
}
}
}
}
$this->_redirectUrl( $sUrl );
Edited for register:
$sUrl = $session->getBeforeAuthUrl( TRUE );
if (Mage::helper('customerredirect')->isEnabled() && !Mage::getSingleton("core/session")->getRedirectregister())
{
if (strpos(Mage::helper('core/http')->getHttpReferer(), 'checkout') === false)
{
if ( Mage::helper('customerredirect')->isoptionEnabled('login_customerredirect'))
{
$lasturl = Mage::getSingleton('core/session')->getLastUrl();
if( Mage::getSingleton('core/session')->getIsFromCart() == 1 || Mage::getSingleton('core/session')->getIsFromCheckout() == 1
|| preg_match("#customer/account/create#", $lasturl) )
{
$sUrl = Mage::getUrl('onestepcheckout/index');
}
}
}
}