microblog.pub/poussetaches.py

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2019-04-05 04:35:48 -05:00
import base64
import json
import os
from typing import Any
from dataclasses import dataclass
import flask
import requests
POUSSETACHES_AUTH_KEY = os.getenv("POUSSETACHES_AUTH_KEY")
@dataclass
class Task:
req_id: str
tries: int
payload: Any
class PousseTaches:
def __init__(self, api_url: str, base_url: str) -> None:
self.api_url = api_url
self.base_url = base_url
def push(self, payload: Any, path: str, expected=200) -> str:
# Encode our payload
p = base64.b64encode(json.dumps(payload).encode()).decode()
# Queue/push it
resp = requests.post(
self.api_url,
json={"url": self.base_url + path, "payload": p, "expected": expected},
)
resp.raise_for_status()
return resp.headers.get("Poussetaches-Task-ID")
def parse(self, req: flask.Request) -> Task:
if req.headers.get("Poussetaches-Auth-Key") != POUSSETACHES_AUTH_KEY:
raise ValueError("Bad auth key")
# Parse the "envelope"
envelope = json.loads(req.data)
print(req)
print(f"envelope={envelope!r}")
payload = json.loads(base64.b64decode(envelope["payload"]))
return Task(req_id=envelope["req_id"], tries=envelope["tries"], payload=payload)