#!/usr/bin/env python3

from flask import Flask, abort, redirect, request, jsonify
from http import HTTPStatus
from flask_httpauth import HTTPBasicAuth
from bs4 import BeautifulSoup

app = Flask(__name__)
auth = HTTPBasicAuth()

@auth.verify_password
def verify_password(username, password):
        return username == 'garmin-live' and password == 'xxx'

@app.route('/mailhook', methods=['POST'])
@auth.login_required
def cloudmailin_webhook():
        data = request.get_json()

        import tempfile, os
        t = tempfile.mkstemp()
        with os.fdopen(t[0], "w") as f:
                f.write("%r" % data)
        
        spf = data["envelope"]["spf"]
#       assert spf["result"] == "pass"
        assert spf["domain"] in ("garmin.com", "gaast.net")

        soup = BeautifulSoup(data["html"])
        for l in soup.find_all('a',href=True):
                url = l.get("href")
                if url.startswith("https://livetrack.garmin.com/"):
                        date = data["headers"]["date"]
                        open("log", "a").write(f"{url} {date}\n")
                        break
        else:
                abort(422)

        return jsonify(status='ok')


@app.route('/')
def root():
        log = open("log", "r").readlines()
        
        return redirect(log[-1].split()[0], code=302)


#import sys
#if len(sys.argv) > 1:
#       data = eval(open(sys.argv[1], "r").read())

if __name__ == "__main__":
        app.run(host='0.0.0.0', port=1375, debug=False)