Files
notifications-api/app/__init__.py
2023-08-17 09:01:53 -07:00

380 lines
14 KiB
Python

import os
import secrets
import string
import time
import uuid
from time import monotonic
from celery import current_task
from flask import (
current_app,
g,
has_request_context,
jsonify,
make_response,
request,
)
from flask_marshmallow import Marshmallow
from flask_migrate import Migrate
from flask_sqlalchemy import SQLAlchemy as _SQLAlchemy
from notifications_utils import logging, request_helper
from notifications_utils.celery import NotifyCelery
from notifications_utils.clients.encryption.encryption_client import Encryption
from notifications_utils.clients.redis.redis_client import RedisClient
from notifications_utils.clients.zendesk.zendesk_client import ZendeskClient
from sqlalchemy import event
from werkzeug.exceptions import HTTPException as WerkzeugHTTPException
from werkzeug.local import LocalProxy
from app.clients import NotificationProviderClients
from app.clients.cloudwatch.aws_cloudwatch import AwsCloudwatchClient
from app.clients.document_download import DocumentDownloadClient
from app.clients.email.aws_ses import AwsSesClient
from app.clients.email.aws_ses_stub import AwsSesStubClient
from app.clients.sms.aws_sns import AwsSnsClient
class SQLAlchemy(_SQLAlchemy):
"""We need to subclass SQLAlchemy in order to override create_engine options"""
def apply_driver_hacks(self, app, info, options):
sa_url, options = super().apply_driver_hacks(app, info, options)
if 'connect_args' not in options:
options['connect_args'] = {}
options['connect_args']["options"] = "-c statement_timeout={}".format(
int(app.config['SQLALCHEMY_STATEMENT_TIMEOUT']) * 1000
)
return (sa_url, options)
db = SQLAlchemy()
migrate = Migrate()
ma = Marshmallow()
notify_celery = NotifyCelery()
aws_ses_client = AwsSesClient()
aws_ses_stub_client = AwsSesStubClient()
aws_sns_client = AwsSnsClient()
aws_cloudwatch_client = AwsCloudwatchClient()
encryption = Encryption()
zendesk_client = ZendeskClient()
redis_store = RedisClient()
document_download_client = DocumentDownloadClient()
notification_provider_clients = NotificationProviderClients()
api_user = LocalProxy(lambda: g.api_user)
authenticated_service = LocalProxy(lambda: g.authenticated_service)
def create_app(application):
from app.config import configs
notify_environment = os.environ['NOTIFY_ENVIRONMENT']
application.config.from_object(configs[notify_environment])
application.config['NOTIFY_APP_NAME'] = application.name
init_app(application)
request_helper.init_app(application)
db.init_app(application)
migrate.init_app(application, db=db)
ma.init_app(application)
zendesk_client.init_app(application)
logging.init_app(application)
aws_sns_client.init_app(application)
aws_ses_client.init_app()
aws_ses_stub_client.init_app(
stub_url=application.config['SES_STUB_URL']
)
aws_cloudwatch_client.init_app(application)
# If a stub url is provided for SES, then use the stub client rather than the real SES boto client
email_clients = [aws_ses_stub_client] if application.config['SES_STUB_URL'] else [aws_ses_client]
notification_provider_clients.init_app(
sms_clients=[aws_sns_client],
email_clients=email_clients
)
notify_celery.init_app(application)
encryption.init_app(application)
redis_store.init_app(application)
document_download_client.init_app(application)
register_blueprint(application)
register_v2_blueprints(application)
# avoid circular imports by importing this file later
from app.commands import setup_commands
setup_commands(application)
# set up sqlalchemy events
setup_sqlalchemy_events(application)
return application
def register_blueprint(application):
from app.authentication.auth import (
requires_admin_auth,
requires_auth,
requires_no_auth,
)
from app.billing.rest import billing_blueprint
from app.complaint.complaint_rest import complaint_blueprint
from app.docs import docs as docs_blueprint
from app.email_branding.rest import email_branding_blueprint
from app.events.rest import events as events_blueprint
from app.inbound_number.rest import inbound_number_blueprint
from app.inbound_sms.rest import inbound_sms as inbound_sms_blueprint
from app.job.rest import job_blueprint
from app.notifications.notifications_ses_callback import (
ses_callback_blueprint,
)
from app.notifications.receive_notifications import (
receive_notifications_blueprint,
)
from app.notifications.rest import notifications as notifications_blueprint
from app.organization.invite_rest import organization_invite_blueprint
from app.organization.rest import organization_blueprint
from app.performance_dashboard.rest import performance_dashboard_blueprint
from app.platform_stats.rest import platform_stats_blueprint
from app.provider_details.rest import (
provider_details as provider_details_blueprint,
)
from app.service.callback_rest import service_callback_blueprint
from app.service.rest import service_blueprint
from app.service_invite.rest import (
service_invite as service_invite_blueprint,
)
from app.status.healthcheck import status as status_blueprint
from app.template.rest import template_blueprint
from app.template_folder.rest import template_folder_blueprint
from app.template_statistics.rest import (
template_statistics as template_statistics_blueprint,
)
from app.upload.rest import upload_blueprint
from app.user.rest import user_blueprint
from app.webauthn.rest import webauthn_blueprint
service_blueprint.before_request(requires_admin_auth)
application.register_blueprint(service_blueprint, url_prefix='/service')
user_blueprint.before_request(requires_admin_auth)
application.register_blueprint(user_blueprint, url_prefix='/user')
webauthn_blueprint.before_request(requires_admin_auth)
application.register_blueprint(webauthn_blueprint)
template_blueprint.before_request(requires_admin_auth)
application.register_blueprint(template_blueprint)
status_blueprint.before_request(requires_no_auth)
application.register_blueprint(status_blueprint)
docs_blueprint.before_request(requires_no_auth)
application.register_blueprint(docs_blueprint)
# delivery receipts
ses_callback_blueprint.before_request(requires_no_auth)
application.register_blueprint(ses_callback_blueprint)
# inbound sms
receive_notifications_blueprint.before_request(requires_no_auth)
application.register_blueprint(receive_notifications_blueprint)
notifications_blueprint.before_request(requires_auth)
application.register_blueprint(notifications_blueprint)
job_blueprint.before_request(requires_admin_auth)
application.register_blueprint(job_blueprint)
service_invite_blueprint.before_request(requires_admin_auth)
application.register_blueprint(service_invite_blueprint)
organization_invite_blueprint.before_request(requires_admin_auth)
application.register_blueprint(organization_invite_blueprint)
inbound_number_blueprint.before_request(requires_admin_auth)
application.register_blueprint(inbound_number_blueprint)
inbound_sms_blueprint.before_request(requires_admin_auth)
application.register_blueprint(inbound_sms_blueprint)
template_statistics_blueprint.before_request(requires_admin_auth)
application.register_blueprint(template_statistics_blueprint)
events_blueprint.before_request(requires_admin_auth)
application.register_blueprint(events_blueprint)
provider_details_blueprint.before_request(requires_admin_auth)
application.register_blueprint(provider_details_blueprint, url_prefix='/provider-details')
email_branding_blueprint.before_request(requires_admin_auth)
application.register_blueprint(email_branding_blueprint, url_prefix='/email-branding')
billing_blueprint.before_request(requires_admin_auth)
application.register_blueprint(billing_blueprint)
service_callback_blueprint.before_request(requires_admin_auth)
application.register_blueprint(service_callback_blueprint)
organization_blueprint.before_request(requires_admin_auth)
application.register_blueprint(organization_blueprint, url_prefix='/organizations')
complaint_blueprint.before_request(requires_admin_auth)
application.register_blueprint(complaint_blueprint)
performance_dashboard_blueprint.before_request(requires_admin_auth)
application.register_blueprint(performance_dashboard_blueprint)
platform_stats_blueprint.before_request(requires_admin_auth)
application.register_blueprint(platform_stats_blueprint, url_prefix='/platform-stats')
template_folder_blueprint.before_request(requires_admin_auth)
application.register_blueprint(template_folder_blueprint)
upload_blueprint.before_request(requires_admin_auth)
application.register_blueprint(upload_blueprint)
def register_v2_blueprints(application):
from app.authentication.auth import requires_auth
from app.v2.inbound_sms.get_inbound_sms import v2_inbound_sms_blueprint
from app.v2.notifications import ( # noqa
get_notifications,
post_notifications,
v2_notification_blueprint,
)
from app.v2.template import ( # noqa
get_template,
post_template,
v2_template_blueprint,
)
from app.v2.templates.get_templates import v2_templates_blueprint
v2_notification_blueprint.before_request(requires_auth)
application.register_blueprint(v2_notification_blueprint)
v2_templates_blueprint.before_request(requires_auth)
application.register_blueprint(v2_templates_blueprint)
v2_template_blueprint.before_request(requires_auth)
application.register_blueprint(v2_template_blueprint)
v2_inbound_sms_blueprint.before_request(requires_auth)
application.register_blueprint(v2_inbound_sms_blueprint)
def init_app(app):
@app.before_request
def record_request_details():
g.start = monotonic()
g.endpoint = request.endpoint
@app.after_request
def after_request(response):
response.headers.add('X-Content-Type-Options', 'nosniff')
return response
@app.errorhandler(Exception)
def exception(error):
app.logger.exception(error)
# error.code is set for our exception types.
msg = getattr(error, 'message', str(error))
code = getattr(error, 'code', 500)
response = make_response(
jsonify(result='error', message=msg),
code,
error.get_headers()
)
response.content_type = "application/json"
return response
@app.errorhandler(WerkzeugHTTPException)
def werkzeug_exception(e):
response = make_response(
jsonify(result='error', message=e.description),
e.code,
e.get_headers()
)
response.content_type = 'application/json'
return response
@app.errorhandler(404)
def page_not_found(e):
msg = e.description or "Not found"
response = make_response(
jsonify(result='error', message=msg),
404,
e.get_headers()
)
response.content_type = 'application/json'
return response
def create_uuid():
return str(uuid.uuid4())
def create_random_identifier():
return ''.join(secrets.choice(string.ascii_uppercase + string.digits) for _ in range(16))
# TODO maintainability what is the purpose of this? Debugging?
def setup_sqlalchemy_events(app):
# need this or db.engine isn't accessible
with app.app_context():
@event.listens_for(db.engine, 'connect')
def connect(dbapi_connection, connection_record): # noqa
pass
@event.listens_for(db.engine, 'close')
def close(dbapi_connection, connection_record): # noqa
pass
@event.listens_for(db.engine, 'checkout')
def checkout(dbapi_connection, connection_record, connection_proxy): # noqa
try:
# this will overwrite any previous checkout_at timestamp
connection_record.info['checkout_at'] = time.monotonic()
# checkin runs after the request is already torn down, therefore we add the request_data onto the
# connection_record as otherwise it won't have that information when checkin actually runs.
# Note: this is not a problem for checkouts as the checkout always happens within a web request or task
# web requests
if has_request_context():
connection_record.info['request_data'] = {
'method': request.method,
'host': request.host,
'url_rule': request.url_rule.rule if request.url_rule else 'No endpoint'
}
# celery apps
elif current_task:
connection_record.info['request_data'] = {
'method': 'celery',
'host': current_app.config['NOTIFY_APP_NAME'], # worker name
'url_rule': current_task.name, # task name
}
# anything else. migrations possibly, or flask cli commands.
else:
current_app.logger.warning('Checked out sqlalchemy connection from outside of request/task')
connection_record.info['request_data'] = {
'method': 'unknown',
'host': 'unknown',
'url_rule': 'unknown',
}
except Exception:
current_app.logger.exception("Exception caught for checkout event.")
@event.listens_for(db.engine, 'checkin')
def checkin(dbapi_connection, connection_record): # noqa
pass