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author | Anton Luka Šijanec <anton@sijanec.eu> | 2023-11-29 11:05:18 +0100 |
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committer | Anton Luka Šijanec <anton@sijanec.eu> | 2023-11-29 11:05:18 +0100 |
commit | acc8625c563a3b05b1cbfdbc94d39870c7a71b42 (patch) | |
tree | e34722420c64be71768923d9b04b611293fcefea /prog/jelka/daemon.py | |
parent | b5 (diff) | |
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Diffstat (limited to '')
-rwxr-xr-x | prog/jelka/daemon.py | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/prog/jelka/daemon.py b/prog/jelka/daemon.py new file mode 100755 index 0000000..a288f35 --- /dev/null +++ b/prog/jelka/daemon.py @@ -0,0 +1,102 @@ +#!/usr/bin/python3 +import flask +import threading +import os +import secrets +import subprocess +import hashlib +import base64 +import time + +http = flask.Flask(__name__) +onemogočeni = set(["onemogočen.py"]) +skrivnost = secrets.token_bytes(8) +čas_vzorca = 5 +proces = None +naslednji = None + +def trenuten(): + if proces: + return proces.args[1] + return None + +def http_event_stream(): + while sprememba_stanja.wait(): + print("geslo je: " + kode()[0]) + sprememba_stanja.clear() + yield "data: " + http.json.dumps({"čas": čas_vzorca, "vzorci": os.listdir("vzorci"), "trenuten": trenuten(), "onemogočeni": [x for x in onemogočeni]}) + "\n\n" + +@http.route("/vzorci/<vzorec>", methods=["GET"]) +def vzorec(vzorec): + if "/" in vzorec: + return flask.Response(http.json.dumps({"napaka": {"koda": 3, "besedilo": "vzorec ne sme vsebovati poševnice"}}), status=403) + return flask.send_file("vzorci/" + vzorec, mimetype="text/x-python") + +@http.route("/", methods=["GET"]) +def index(): + return flask.render_template("index.html"); + +@http.route("/stream/", methods=["GET"]) +def stream(): + return flask.Response(http_event_stream(), headers={"Access-Control-Allow-Origin": "*", "Content-Type": "text/event-stream"}) + +@http.route("/<koda>", methods=["POST"]) +def update(koda): + global onemogočeni + global čas_vzorca + global naslednji + if koda not in kode(): + return flask.Response(http.json.dumps({"napaka": {"koda": 1, "besedilo": "napačna koda"}}), status=200) + data = flask.json.loads(flask.request.data) + if "omogoči" in data.keys(): + onemogočeni -= set(data["omogoči"]) + if "onemogoči" in data.keys(): + onemogočeni |= set(data["onemogoči"]) + if "čas" in data.keys(): + if data["čas"] < 1 or data["čas"] > 300: + return flask.Response(http.json.dumps({"napaka": {"koda": 2, "besedilo": "čas ni v [1,300]"}}), status=200) + čas_vzorca = data["čas"] + sprememba_stanja.set() + if "začni" in data.keys() and type(data["začni"]) == str: + naslednji = data["začni"] + začni_vzorec.set() + return "true" + +@http.route("/<koda>", methods=["OPTIONS"]) +def update_preflight(koda): + return flask.Response("", status=204, headers={"Access-Control-Allow-Origin": "*", "Access-Control-Allow-Methods": "GET, POST, OPTIONS", "Access-Control-Allow-Headers": "Content-Type", "Access-Control-Max-Age": "86400"}) + +def kode(): + return [base64.b64encode(hashlib.sha256(skrivnost+bytes(str(int(time.time()/1000)), encoding="utf-8")).digest()).replace(b"/", b"").replace(b"+", b"")[:4].lower().decode(), base64.b64encode(hashlib.sha256(skrivnost+bytes(str(int(time.time()/1000)-1), encoding="utf-8")).digest()).replace(b"/", b"").replace(b"+", b"")[:4].lower().decode()] + +def zaznaj_smrt(): + proces.wait() + začni_vzorec.set() + +def subprocess_manager(): + global naslednji + global proces + global začni_vzorec + while True: + if not naslednji: + vzorci = set(os.listdir("vzorci"))-set(["začasen.py"])-onemogočeni + naslednji = sorted(vzorci)[0] + print("daemon: starting " + naslednji) + proces = subprocess.Popen(["./wrapper.py", naslednji]) + sprememba_stanja.set() + vzorci = set(os.listdir("vzorci"))-set(["začasen.py"])-onemogočeni + naslednji = sorted(vzorci)[0] + if trenuten() in vzorci: + naslednji = sorted(vzorci)[(sorted(vzorci).index(trenuten())+1)%len(vzorci)] + začni_vzorec.clear() + threading.Thread(target=zaznaj_smrt).start() + razlog = začni_vzorec.wait(timeout=čas_vzorca) + proces.send_signal(subprocess.signal.SIGINT) + proces.wait() + +začni_vzorec = threading.Event() +sprememba_stanja = threading.Event() + +if __name__ == "__main__": + threading.Thread(target=lambda: http.run(host="::", port=6969, debug=True, use_reloader=False)).start() + threading.Thread(target=subprocess_manager).start() |