app.py

#!/usr/bin/env python
import importlib
import json
import logging
import os
import requests
import sys
from eve import Eve, auth
from flask import abort
from hashlib import sha256
from pymongo import MongoClient

CURRENT_PATH = os.path.dirname(os.path.abspath(__file__))
sys.path.append(os.path.join(CURRENT_PATH, 'settings'))
EVE_SETTINGS = os.environ.get('EVE_SETTINGS', 'settings/production.py')
EVE_SETTINGS_ROOT, _ = os.path.splitext(EVE_SETTINGS)
EVE_SETTINGS_PROFILE = os.path.basename(EVE_SETTINGS_ROOT)
ABS_SETTINGS_PATH = os.path.join(CURRENT_PATH, EVE_SETTINGS)

# Allow current settings to be available to this code
imported_settings = importlib.import_module(f'settings.{EVE_SETTINGS_PROFILE}')

logging.basicConfig()
logger = logging.getLogger(__name__)
logger.setLevel(getattr(logging, imported_settings.LOG_LEVEL))


class BasicAuth(auth.BasicAuth):
    def check_auth(self, username, password, allowed_roles, resource, method):
        return (
            username == imported_settings.API_USER
            and password == imported_settings.API_PASSWORD
        )


def recaptcha_hook(resource, request, lookup=None):
    recaptcha_payload = {
        'response': request.json.pop('gRecaptchaResponse', None),
        'secret': imported_settings.RECAPTCHA_SECRET_KEY,
    }
    logger.debug(recaptcha_payload)
    recaptcha_response = requests.post(
        'https://www.google.com/recaptcha/api/siteverify', recaptcha_payload,
    )
    response_text = json.loads(recaptcha_response.text)
    if not response_text['success']:
        logger.debug(response_text)
        abort(403)

# Initialize MongoDB client with Cosmos DB connection string
client = MongoClient(imported_settings.MONGO_URI)
db = client[imported_settings.MONGO_DBNAME]

def get_eve_app():
    """
    Initializes Eve app with given configuration.
    Main entry point for wsgi (gunicorn) server.
    :param config: Configuration dictionary
    :return: app
    """
    app = Eve(settings=ABS_SETTINGS_PATH, auth=BasicAuth)
    if imported_settings.RECAPTCHA_ENABLED:
        app.on_pre_POST = recaptcha_hook
        app.on_pre_PATCH = recaptcha_hook
        app.on_pre_PUT = recaptcha_hook
    return app


app = get_eve_app()


if __name__ == '__main__':
    # Main entry point when run in stand-alone mode.
    logger.setLevel(logging.DEBUG)
    app.run(debug=True,host='0.0.0.0')