status.py

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

import falcon
import os
import json
import time

static_info = {
    "address": "Wilhelminenstra\u00dfe 17, 64283 Darmstadt, Germany",
    "api": "0.12",
    "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"],
}

STATE_FILE_NAME = "state.json"


class HackspaceStatus:
    def __init__(self):
        if os.path.isfile(STATE_FILE_NAME):
            with open(STATE_FILE_NAME) as state_file:
                last_status = json.load(state_file)
                self.space_status = last_status["status"]
                self.last_change = last_status["last_change"]
        else:
            self.space_status = False
            self.last_change = time.time()

    def on_get(self, req, resp, name):
        if not name or name == 'plain':
            resp.content_type = 'text/plain'
            resp.body = str(bool(self.space_status))
        elif name == 'json':
            data = dict(static_info)
            data["state"]["open"] = data["open"] = bool(self.space_status)
            data["lastchange"] = int(self.last_change)
            resp.body = json.dumps(data)
        else:
            raise falcon.HTTPNotFound()
        resp.cache_control = ["no-cache"]

    def on_put(self, req, resp, name):
        # ignore name here
        self.space_status = req.get_param_as_bool("status", required=True)
        self.last_change = time.time()
        # using query parameters is much easier than parsing "status=x" from req.stream.read()

        with open(STATE_FILE_NAME, "w+") as state_file:
            json.dump({
                "status": self.space_status,
                "last_change": self.last_change
            }, state_file)


app = falcon.API()

app.add_route('/{name}', HackspaceStatus())