# Copyright 2016 Tecnativa - Antonio Espinosa # Copyright 2017 Tecnativa - David Vidal # License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl). import hashlib import hmac import logging from datetime import datetime import requests from odoo import _, api, fields, models from odoo.exceptions import UserError, ValidationError from odoo.tools import email_split _logger = logging.getLogger(__name__) class MailTrackingEmail(models.Model): _inherit = "mail.tracking.email" def _country_search(self, country_code): country = False if country_code: country = self.env["res.country"].search( [("code", "=", country_code.upper())] ) if country: return country.id return False @property def _mailgun_mandatory_fields(self): return ( "event", "timestamp", "token", "signature", "tracking_email_id", "odoo_db", ) @property def _mailgun_event_type_mapping(self): return { # Mailgun event type: tracking event type "delivered": "delivered", "opened": "open", "clicked": "click", "unsubscribed": "unsub", "complained": "spam", "bounced": "hard_bounce", "dropped": "reject", "accepted": "sent", "failed": "error", "rejected": "error", } def _mailgun_event_type_verify(self, event): event = event or {} mailgun_event_type = event.get("event") if mailgun_event_type not in self._mailgun_event_type_mapping: _logger.error("Mailgun: event type '%s' not supported", mailgun_event_type) return False # OK, event type is valid return True def _mailgun_signature(self, api_key, timestamp, token): return hmac.new( key=bytes(api_key, "utf-8"), msg=bytes("{}{}".format(str(timestamp), str(token)), "utf-8"), digestmod=hashlib.sha256, ).hexdigest() def _mailgun_values(self): icp = self.env["ir.config_parameter"].sudo() api_key = icp.get_param("mailgun.apikey") if not api_key: raise ValidationError(_("There is no Mailgun API key!")) api_url = icp.get_param("mailgun.api_url", "https://api.mailgun.net/v3") catchall_domain = icp.get_param("mail.catchall.domain") domain = icp.get_param("mailgun.domain", catchall_domain) if not domain: raise ValidationError(_("A Mailgun domain value is needed!")) validation_key = icp.get_param("mailgun.validation_key") return api_key, api_url, domain, validation_key def _mailgun_signature_verify(self, event): event = event or {} icp = self.env["ir.config_parameter"].sudo() api_key = icp.get_param("mailgun.apikey") if not api_key: _logger.warning( "No Mailgun api key configured. " "Please add 'mailgun.apikey' to System parameters " "to enable Mailgun authentication webhoook " "requests. More info at: " "https://documentation.mailgun.com/" "user_manual.html#webhooks" ) else: timestamp = event.get("timestamp") token = event.get("token") signature = event.get("signature") event_digest = self._mailgun_signature(api_key, timestamp, token) if signature != event_digest: _logger.error( "Mailgun: Invalid signature '%s' != '%s'", signature, event_digest ) return False # OK, signature is valid return True def _db_verify(self, event): event = event or {} odoo_db = event.get("odoo_db") current_db = self.env.cr.dbname if odoo_db != current_db: _logger.error("Mailgun: Database '%s' is not the current database", odoo_db) return False # OK, DB is current return True def _mailgun_metadata(self, mailgun_event_type, event, metadata): # Get Mailgun timestamp when found ts = event.get("timestamp", False) try: ts = float(ts) except Exception: ts = False if ts: dt = datetime.utcfromtimestamp(ts) metadata.update( { "timestamp": ts, "time": fields.Datetime.to_string(dt), "date": fields.Date.to_string(dt), "mailgun_id": event.get("id", False), } ) # Common field mapping mapping = { "recipient": "recipient", "ip": "ip", "user_agent": "user-agent", "os_family": "client-os", "ua_family": "client-name", "ua_type": "client-type", "url": "url", } for k, v in mapping.items(): if event.get(v, False): metadata[k] = event[v] # Special field mapping metadata.update( { "mobile": event.get("device-type") in {"mobile", "tablet"}, "user_country_id": self._country_search(event.get("country", False)), } ) # Mapping for special events if mailgun_event_type == "bounced": metadata.update( { "error_type": event.get("code", False), "error_description": event.get("error", False), "error_details": event.get("notification", False), } ) elif mailgun_event_type == "dropped": metadata.update( { "error_type": event.get("reason", False), "error_description": event.get("code", False), "error_details": event.get("description", False), } ) elif mailgun_event_type == "complained": metadata.update( { "error_type": "spam", "error_description": "Recipient '%s' mark this email as spam" % event.get("recipient", False), } ) return metadata def _mailgun_tracking_get(self, event): tracking = False tracking_email_id = event.get("tracking_email_id", False) if tracking_email_id and tracking_email_id.isdigit(): tracking = self.search([("id", "=", tracking_email_id)], limit=1) return tracking def _event_is_from_mailgun(self, event): event = event or {} return all([k in event for k in self._mailgun_mandatory_fields]) @api.model def event_process(self, request, post, metadata, event_type=None): res = super(MailTrackingEmail, self).event_process( request, post, metadata, event_type=event_type ) if res == "NONE" and self._event_is_from_mailgun(post): if not self._mailgun_signature_verify(post): res = "ERROR: Signature" elif not self._mailgun_event_type_verify(post): res = "ERROR: Event type not supported" elif not self._db_verify(post): res = "ERROR: Invalid DB" else: res = "OK" if res == "OK": mailgun_event_type = post.get("event") mapped_event_type = ( self._mailgun_event_type_mapping.get(mailgun_event_type) or event_type ) if not mapped_event_type: # pragma: no cover res = "ERROR: Bad event" tracking = self._mailgun_tracking_get(post) if not tracking: res = "ERROR: Tracking not found" if res == "OK": # Complete metadata with mailgun event info metadata = self._mailgun_metadata(mailgun_event_type, post, metadata) # Create event tracking.event_create(mapped_event_type, metadata) if res != "NONE": if event_type: _logger.info("Mailgun: event '%s' process '%s'", event_type, res) else: _logger.info("Mailgun: event process '%s'", res) return res @api.multi def action_manual_check_mailgun(self): """ Manual check against Mailgun API API Documentation: https://documentation.mailgun.com/en/latest/api-events.html """ api_key, api_url, domain, validation_key = self._mailgun_values() for tracking in self: if not tracking.mail_message_id: raise UserError(_("There is no tracked message!")) message_id = tracking.mail_message_id.message_id.replace("<", "").replace( ">", "" ) res = requests.get( "{}/{}/events".format(api_url, domain), auth=("api", api_key), params={ "begin": tracking.timestamp, "ascending": "yes", "message-id": message_id, }, ) if not res or res.status_code != 200: raise ValidationError(_("Couldn't retrieve Mailgun information")) content = res.json() if "items" not in content: raise ValidationError(_("Event information not longer stored")) for item in content["items"]: # mailgun event hasn't been synced and recipient is the same as # in the evaluated tracking. We use email_split since tracking # recipient could come in format: "example" if not self.env["mail.tracking.event"].search( [("mailgun_id", "=", item["id"])] ) and (item.get("recipient", "") == email_split(tracking.recipient)[0]): mapped_event_type = self._mailgun_event_type_mapping.get( item["event"], item["event"] ) metadata = self._mailgun_metadata(mapped_event_type, item, {}) tracking.event_create(mapped_event_type, metadata)