onPaymentNotification() not invoked when returning

-- HikaShop version -- : 2.3.5
-- Joomla version -- : 3.2
-- PHP version -- : 5.4.26
-- Browser(s) name and version -- : Firefox last
-- Error-message(debug-mod must be tuned on) -- : None

Hi,

I send these urls to my payment provider, Datatrans, which are setup in the onAfterOrderConfirm() event function.
successUrl: www.mysite.ch/index.php?option=com_hikas...der_id=29&Itemid=143
errorUrl : www.mysitech/index.php?option=com_hikash...der_id=29&Itemid=143
cancelUrl : www.mysite.ch/index.php?option=com_hikas...der_id=29&Itemid=143
My payment provider then correctly redirects to these urls, and also posts transaction data, we can see that with the Firefox debug console.
My problem is that in all cases, my plugin onPaymentNotification() never gets called, so I can't finish the process.
Although message is notified to the user thanking them for their purchase.
How's that even possible ?!?

By the way, under my avatar it's written "hikashop essential",so just to be fair because I think I missed the field or whatever, I've bought Hikashop business and so did my final customer. Just saying

Help !

OK, I did specify the notification url for the payment processor return, and then, in the onPaymentNotification() handler, i redirect to custom pages (error, ok or cancelled) with a location header.
Seems to work.

Hi,

Are you sure that it is not called ?
Do you have added some "echo" in that function and checked the payment log file in Configuration > Main > Files ?

Hi,
The payment log file is empty and seems to stays like that.
In my plugin, I do log activity to a file , so I'm quite sure the onPaymentNotification() was not called when the payment gateway jumped to the url I was giving this way:

HIKASHOP_LIVE.'index.php?option=com_hikashop&ctrl=checkout&task=after_end&order_id='.$invoiceID . $this->url_itemid

		$success_url = HIKASHOP_LIVE.'index.php?option=com_hikashop&ctrl=checkout&&task=notify&notif_payment=' .
		                             $this->name . '&tmpl=component&order_id='.
		                             $order->order_id . 
		                             '&lang='.$this->locale .
		                             $this->url_itemid . '&src=callback'

Thanks Jerome,

I'm not quite at ease relying on "echo" to do anything in a class member, but I now understand why I saw these echo statements in the samples and why there was some kind of "history.>data = ob_get_clean()" statements lying around, which were also a bit confusing.
So, I've stripped all "echo"s away and I use the history->data member to effectively store the provider error messages or meaningful response data.

I missed the "writeToLog()" function.
I use a custom made "debug_print()" function (along with a debug flag to switch it on/off, and other decorations), that opens a file in append mode, write to it and closes it on each call.
So I have my own debug log file system, and that's what I used to see if my member functions were invoked or not.
I'm going publish that piece of debug in a post on my blog (francescofoti.com) for anyone who may be interested.
I'll eventually use the writeToLog() function anyway in a future release, to comply with your guidelines.

And, we should be going live with my Datatrans payment plugin tomorrow (tada!); after testing with real credit cards, on the final customer website: www.selfbox.ch (full https soon).

Btw, if you've got some sort of "certification" process for these kind of plugins, or a directory where I can list it, I'm interested, as I'm going to propose it on the market.

Thanks for your appreciated support.
Kind regards,
Francesco.