for API v0.13 with single pass (`STATUS_PASSWORD` as env var)

status.py

'''
Implement the SpaceApi (<https://github.com/SpaceApi/SpaceApi>)
for Chaos Darmstadt (<https://www.chaos-darmstadt.de/>).
'''

import os
import json
import time
from flask import Flask, Response, request
from jsonschema import validate

static_info = {
    'address': 'Wilhelminenstra\u00dfe 17, 64283 Darmstadt, Germany',
    'api': '0.13',
    'contact': {
        'email': 'info@chaos-darmstadt.de',
        'issue_mail': 'noc@chaos-darmstadt.de',
        'irc': 'irc://hackint/#chaos-darmstadt',
        'ml': 'public@darmstadt.ccc.de',
        'phone': '+49 6151 6274854',
        'twitter': '@chaosdarmstadt',
        'twitter2': '@trollhoehle',
        'facebook': 'Chaos-Darmstadt-476384005725422',
    },
    'icon': {
        # TODO: icons
        'closed': 'http://status.chaos-darmstadt.de/cda_closed.png',
        'open': 'http://status.chaos-darmstadt.de/cda_open.png',
    },
    'logo': 'http://status.chaos-darmstadt.de/cda_logo_plain.png',
    'lat': 49.87065,
    'lon': 8.65146,
    'space': 'Chaos Darmstadt',
    'url': 'https://www.chaos-darmstadt.de',
    'issue_report_channels': [
        'issue_mail',
    ],
}
# duplicate some information to comply with SpaceApi v0.13
static_info['location'] = {
    'address': static_info['address'],
    'lat': static_info['lat'],
    'lon': static_info['lon'],
}
static_info['state'] = {
    'icon': static_info['icon'],
}

STATUS_FILE_NAME = 'status.json'

STATUS_SCHEMA = {
    'type': 'object',
    'properties': {
        'open': {'type': 'boolean'},
        'last_change': {'type': 'number'}
    },
    'required': ['open', 'last_change']
}


def validate_status(status):
    validate(status, STATUS_SCHEMA)


def save_status(status):
    validate_status(status)
    with open(STATUS_FILE_NAME, 'w+') as status_file:
        json.dump(status, status_file)


def load_status():
    with open(STATUS_FILE_NAME) as status_file:
        new_status = json.load(status_file)
        validate_status(new_status)
        return new_status


status = {}
if os.path.isfile(STATUS_FILE_NAME):
    status = load_status()
else:
    status = {'open': False, 'last_change': time.time()}
    save_status(status)

app = Flask(__name__)


@app.route('/', methods=['GET'])
def show():
    data = static_info.copy()
    data['state']['open'] = data['open'] = bool(status['open'])
    data['lastchange'] = int(status['last_change'])
    return Response(json.dumps(data),
                    mimetype='application/json',
                    headers={'Cache-Control': 'no-cache'})


@app.route('/api/door/<state>')
def change_status(state):
    auth = request.authorization

    if not auth or auth.password != os.environ['STATUS_PASSWORD']:
        return Response('Access denied', 401)

    state_lower = state.lower()
    status['open'] = state_lower in ('true', '1')\
                     and state_lower not in ('false', '0')
    status['last_change'] = time.time()
    save_status(status)
    return ''


payback_cache = {}


@app.route('/api/payback')
def payback():
    global payback_cache
    try:
        with open('/home/payback/payback.json', 'r') as handle:
            payback_cache = json.loads(handle.read())
    except IOError:
        pass

    return json.dumps(payback_cache)


if __name__ == '__main__':
    app.run()