Add PayDunya payment provider integration

- Implemented PayDunya payment provider with necessary models, controllers, and views.
- Added configuration files for Docker and Odoo setup.
- Included .gitignore for Python and Odoo specific files.

addons/payment_paydunya/controllers/__init__.py

@@ -0,0 +1 @@
+from . import main

addons/payment_paydunya/controllers/main.py

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+import logging
+import requests
+from odoo import http
+
+_logger = logging.getLogger(__name__)
+
+
+class PaydunyaController(http.Controller):
+    @http.route('/payment/paydunya/return', type='http', auth='public', methods=['GET'], csrf=False)
+    def paydunya_return(self, **kwargs):
+        """Handle return from PayDunya after payment attempt."""
+        token = kwargs.get('token') or http.request.params.get('token')
+        if not token:
+            return http.request.redirect('/')
+
+        provider = http.request.env['payment.provider'].sudo().search([('code', '=', 'paydunya')], limit=1)
+        if not provider:
+            _logger.warning('PayDunya return called but no provider found')
+            return http.request.redirect('/')
+
+        # Build check URL using the confirm endpoint
+        base = provider._get_paydunya_api_base()
+        confirm_url = base + '/checkout-invoice/confirm/{}'.format(token)
+
+        headers = {
+            'Content-Type': 'application/json',
+            'PAYDUNYA-MASTER-KEY': provider.paydunya_master_key or '',
+            'PAYDUNYA-PRIVATE-KEY': provider.paydunya_private_key or '',
+            'PAYDUNYA-TOKEN': provider.paydunya_token or ''
+        }
+
+        try:
+            # GET request to verify status
+            resp = requests.get(confirm_url, headers=headers, timeout=15)
+            data = resp.json()
+            _logger.info('PayDunya confirm response: %s', data)
+        except Exception as e:
+            _logger.exception('Error verifying PayDunya invoice: %s', e)
+            data = {'token': token, 'status': 'failed'}
+
+        # Trigger transaction handling with the confirmed data
+        try:
+            tx_model = http.request.env['payment.transaction'].sudo()
+            handled = tx_model._handle_notification_data(data)
+            if handled:
+                return http.request.redirect('/payment/process')
+        except Exception:
+            _logger.exception('Error handling PayDunya notification data')
+
+        return http.request.redirect('/')
+
+    @http.route('/payment/paydunya/cancel', type='http', auth='public', methods=['GET'], csrf=False)
+    def paydunya_cancel(self, **kwargs):
+        """Handle cancellation from PayDunya."""
+        token = kwargs.get('token') or http.request.params.get('token')
+        _logger.info('PayDunya payment cancelled: token=%s', token)
+        return http.request.redirect('/shop/cart')
+
+    @http.route('/payment/paydunya/callback', type='http', auth='public', methods=['POST'], csrf=False)
+    def paydunya_callback(self, **kwargs):
+        """Handle IPN callback from PayDunya.
+        
+        PayDunya sends data as application/x-www-form-urlencoded with 'data' key containing JSON.
+        """
+        try:
+            # The 'data' parameter contains the JSON-encoded transaction info
+            import json
+            data_str = http.request.params.get('data')
+            if data_str:
+                data = json.loads(data_str)
+                _logger.info('PayDunya IPN callback received: %s', data)
+                
+                tx_model = http.request.env['payment.transaction'].sudo()
+                tx_model._handle_notification_data(data)
+        except Exception:
+            _logger.exception('Error handling PayDunya callback')
+
+        # Always return 200 OK to PayDunya
+        return 'OK'
+