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notifications-api/app/notifications/rest.py
2017-01-20 12:26:55 +00:00

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from datetime import datetime
from flask import (
Blueprint,
jsonify,
request,
current_app,
json
)
from app import api_user, statsd_client
from app.clients.email.aws_ses import get_aws_responses
from app.dao import (
templates_dao,
services_dao,
notifications_dao
)
from app.models import KEY_TYPE_TEAM, PRIORITY
from app.models import SMS_TYPE
from app.notifications.process_client_response import (
validate_callback_data,
process_sms_client_response
)
from app.notifications.process_notifications import (persist_notification,
send_notification_to_queue,
simulated_recipient)
from app.notifications.validators import (check_service_message_limit,
check_template_is_for_notification_type,
check_template_is_active)
from app.schemas import (
email_notification_schema,
sms_template_notification_schema,
notification_with_personalisation_schema,
notifications_filter_schema,
notifications_statistics_schema,
day_schema
)
from app.service.utils import service_allowed_to_send_to
from app.utils import pagination_links, get_template_instance
notifications = Blueprint('notifications', __name__)
from app.errors import (
register_errors,
InvalidRequest
)
register_errors(notifications)
@notifications.route('/notifications/email/ses', methods=['POST'])
def process_ses_response():
client_name = 'SES'
try:
ses_request = json.loads(request.data)
errors = validate_callback_data(data=ses_request, fields=['Message'], client_name=client_name)
if errors:
raise InvalidRequest(errors, status_code=400)
ses_message = json.loads(ses_request['Message'])
errors = validate_callback_data(data=ses_message, fields=['notificationType'], client_name=client_name)
if errors:
raise InvalidRequest(errors, status_code=400)
notification_type = ses_message['notificationType']
if notification_type == 'Bounce':
if ses_message['bounce']['bounceType'] == 'Permanent':
notification_type = ses_message['bounce']['bounceType'] # permanent or not
else:
notification_type = 'Temporary'
try:
aws_response_dict = get_aws_responses(notification_type)
except KeyError:
error = "{} callback failed: status {} not found".format(client_name, notification_type)
raise InvalidRequest(error, status_code=400)
notification_status = aws_response_dict['notification_status']
try:
reference = ses_message['mail']['messageId']
notification = notifications_dao.update_notification_status_by_reference(
reference,
notification_status
)
if not notification:
error = "SES callback failed: notification either not found or already updated " \
"from sending. Status {}".format(notification_status)
raise InvalidRequest(error, status_code=404)
if not aws_response_dict['success']:
current_app.logger.info(
"SES delivery failed: notification id {} and reference {} has error found. Status {}".format(
notification.id,
reference,
aws_response_dict['message']
)
)
else:
current_app.logger.info('{} callback return status of {} for notification: {}'.format(
client_name,
notification_status,
notification.id))
statsd_client.incr('callback.ses.{}'.format(notification_status))
if notification.sent_at:
statsd_client.timing_with_dates(
'callback.ses.elapsed-time'.format(client_name.lower()),
datetime.utcnow(),
notification.sent_at
)
return jsonify(
result="success", message="SES callback succeeded"
), 200
except KeyError:
message = "SES callback failed: messageId missing"
raise InvalidRequest(message, status_code=400)
except ValueError as ex:
error = "{} callback failed: invalid json".format(client_name)
raise InvalidRequest(error, status_code=400)
@notifications.route('/notifications/sms/mmg', methods=['POST'])
def process_mmg_response():
client_name = 'MMG'
data = json.loads(request.data)
errors = validate_callback_data(data=data,
fields=['status', 'CID'],
client_name=client_name)
if errors:
raise InvalidRequest(errors, status_code=400)
success, errors = process_sms_client_response(status=str(data.get('status')),
reference=data.get('CID'),
client_name=client_name)
if errors:
raise InvalidRequest(errors, status_code=400)
else:
return jsonify(result='success', message=success), 200
@notifications.route('/notifications/sms/firetext', methods=['POST'])
def process_firetext_response():
client_name = 'Firetext'
errors = validate_callback_data(data=request.form,
fields=['status', 'reference'],
client_name=client_name)
if errors:
raise InvalidRequest(errors, status_code=400)
response_code = request.form.get('code')
status = request.form.get('status')
current_app.logger.info('Firetext status: {}, extended error code: {}'.format(status, response_code))
success, errors = process_sms_client_response(status=status,
reference=request.form.get('reference'),
client_name=client_name)
if errors:
raise InvalidRequest(errors, status_code=400)
else:
return jsonify(result='success', message=success), 200
@notifications.route('/notifications/<uuid:notification_id>', methods=['GET'])
def get_notification_by_id(notification_id):
notification = notifications_dao.get_notification_with_personalisation(str(api_user.service_id),
notification_id,
key_type=None)
return jsonify(data={"notification": notification_with_personalisation_schema.dump(notification).data}), 200
@notifications.route('/notifications', methods=['GET'])
def get_all_notifications():
data = notifications_filter_schema.load(request.args).data
include_jobs = data.get('include_jobs', False)
page = data.get('page', 1)
page_size = data.get('page_size', current_app.config.get('API_PAGE_SIZE'))
limit_days = data.get('limit_days')
pagination = notifications_dao.get_notifications_for_service(
str(api_user.service_id),
personalisation=True,
filter_dict=data,
page=page,
page_size=page_size,
limit_days=limit_days,
key_type=api_user.key_type,
include_jobs=include_jobs)
return jsonify(
notifications=notification_with_personalisation_schema.dump(pagination.items, many=True).data,
page_size=page_size,
total=pagination.total,
links=pagination_links(
pagination,
'.get_all_notifications',
**request.args.to_dict()
)
), 200
@notifications.route('/notifications/statistics')
def get_notification_statistics_for_day():
data = day_schema.load(request.args).data
statistics = notifications_dao.dao_get_potential_notification_statistics_for_day(
day=data['day']
)
data, errors = notifications_statistics_schema.dump(statistics, many=True)
return jsonify(data=data), 200
@notifications.route('/notifications/<string:notification_type>', methods=['POST'])
def send_notification(notification_type):
if notification_type not in ['sms', 'email']:
assert False
service = services_dao.dao_fetch_service_by_id(api_user.service_id)
notification_form, errors = (
sms_template_notification_schema if notification_type == SMS_TYPE else email_notification_schema
).load(request.get_json())
if errors:
raise InvalidRequest(errors, status_code=400)
check_service_message_limit(api_user.key_type, service)
template = templates_dao.dao_get_template_by_id_and_service_id(template_id=notification_form['template'],
service_id=service.id)
check_template_is_for_notification_type(notification_type, template.template_type)
check_template_is_active(template)
template_object = create_template_object_for_notification(template, notification_form.get('personalisation', {}))
_service_allowed_to_send_to(notification_form, service)
# Do not persist or send notification to the queue if it is a simulated recipient
simulated = simulated_recipient(notification_form['to'], notification_type)
notification_model = persist_notification(template_id=template.id,
template_version=template.version,
recipient=notification_form['to'],
service=service,
personalisation=notification_form.get('personalisation', None),
notification_type=notification_type,
api_key_id=api_user.id,
key_type=api_user.key_type,
simulated=simulated)
if not simulated:
queue_name = 'notify' if template.process_type == PRIORITY else None
send_notification_to_queue(notification=notification_model,
research_mode=service.research_mode,
queue=queue_name)
else:
current_app.logger.info("POST simulated notification for id: {}".format(notification_model.id))
notification_form.update({"template_version": template.version})
return jsonify(
data=get_notification_return_data(
notification_model.id,
notification_form,
template_object)
), 201
def get_notification_return_data(notification_id, notification, template):
output = {
'body': str(template),
'template_version': notification['template_version'],
'notification': {'id': notification_id}
}
if template.template_type == 'email':
output.update({'subject': template.subject})
return output
def _service_allowed_to_send_to(notification, service):
if not service_allowed_to_send_to(notification['to'], service, api_user.key_type):
if api_user.key_type == KEY_TYPE_TEAM:
message = 'Cant send to this recipient using a team-only API key'
else:
message = (
'Cant send to this recipient when service is in trial mode '
' see https://www.notifications.service.gov.uk/trial-mode'
)
raise InvalidRequest(
{'to': [message]},
status_code=400
)
def create_template_object_for_notification(template, personalisation):
template_object = get_template_instance(template.__dict__, personalisation)
if template_object.missing_data:
message = 'Missing personalisation: {}'.format(", ".join(template_object.missing_data))
errors = {'template': [message]}
raise InvalidRequest(errors, status_code=400)
if template_object.additional_data:
message = 'Personalisation not needed for template: {}'.format(", ".join(template_object.additional_data))
errors = {'template': [message]}
raise InvalidRequest(errors, status_code=400)
if (
template_object.template_type == SMS_TYPE and
template_object.content_count > current_app.config.get('SMS_CHAR_COUNT_LIMIT')
):
char_count = current_app.config.get('SMS_CHAR_COUNT_LIMIT')
message = 'Content has a character count greater than the limit of {}'.format(char_count)
errors = {'content': [message]}
raise InvalidRequest(errors, status_code=400)
return template_object