125 lines
3.5 KiB
Python
Executable file
125 lines
3.5 KiB
Python
Executable file
#!/usr/bin/env python3
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import asyncio
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import hashlib
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import hmac
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import os
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import shlex
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import tempfile
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from make_readme import generate_READMEs
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from sanic import Sanic, response
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from sanic.response import text
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app = Sanic(__name__)
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github_webhook_secret = open("github_webhook_secret", "r").read().strip()
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login = open("login").read().strip()
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token = open("token").read().strip()
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my_env = os.environ.copy()
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my_env["GIT_TERMINAL_PROMPT"] = "0"
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my_env["GIT_AUTHOR_NAME"] = "yunohost-bot"
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my_env["GIT_AUTHOR_EMAIL"] = "yunohost@yunohost.org"
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my_env["GIT_COMMITTER_NAME"] = "yunohost-bot"
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my_env["GIT_COMMITTER_EMAIL"] = "yunohost@yunohost.org"
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async def git(cmd, in_folder=None):
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if not isinstance(cmd, list):
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cmd = cmd.split()
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if in_folder:
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cmd = ["-C", in_folder] + cmd
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cmd = ["git"] + cmd
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cmd = " ".join(map(shlex.quote, cmd))
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print(cmd)
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command = await asyncio.create_subprocess_shell(
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cmd,
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env=my_env,
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stdout=asyncio.subprocess.PIPE,
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stderr=asyncio.subprocess.STDOUT,
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)
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data = await command.stdout.read()
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return data.decode().strip()
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@app.route("/github", methods=["GET"])
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def main_route(request):
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return text(
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"You aren't supposed to go on this page using a browser, it's for webhooks push instead."
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)
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@app.route("/github", methods=["POST"])
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async def on_push(request):
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header_signature = request.headers.get("X-Hub-Signature")
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if header_signature is None:
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print("no header X-Hub-Signature")
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return response.json({"error": "No X-Hub-Signature"}, 403)
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sha_name, signature = header_signature.split("=")
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if sha_name != "sha1":
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print("signing algo isn't sha1, it's '%s'" % sha_name)
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return response.json({"error": "Signing algorightm is not sha1 ?!"}, 501)
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# HMAC requires the key to be bytes, but data is string
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mac = hmac.new(
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github_webhook_secret.encode(), msg=request.body, digestmod=hashlib.sha1
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)
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if not hmac.compare_digest(str(mac.hexdigest()), str(signature)):
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return response.json({"error": "Bad signature ?!"}, 403)
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data = request.json
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repository = data["repository"]["full_name"]
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branch = data["ref"].split("/", 2)[2]
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print(f"{repository} -> branch '{branch}'")
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with tempfile.TemporaryDirectory() as folder:
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await git(
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[
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"clone",
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f"https://{login}:{token}@github.com/{repository}",
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"--single-branch",
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"--branch",
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branch,
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folder,
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]
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)
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generate_READMEs(folder)
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await git(["add", "README*.md"], in_folder=folder)
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diff_not_empty = await asyncio.create_subprocess_shell(
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" ".join(["git", "diff", "HEAD", "--compact-summary"]),
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cwd=folder,
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stdout=asyncio.subprocess.PIPE,
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stderr=asyncio.subprocess.STDOUT,
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)
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diff_not_empty = await diff_not_empty.stdout.read()
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diff_not_empty = diff_not_empty.decode().strip()
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if not diff_not_empty:
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print("nothing to do")
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return text("nothing to do")
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await git(
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[
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"commit",
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"-a",
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"-m",
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"Auto-update README",
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"--author='yunohost-bot <yunohost@yunohost.org>'",
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],
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in_folder=folder,
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)
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await git(["push", "origin", branch, "--quiet"], in_folder=folder)
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return text("ok")
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if __name__ == "__main__":
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app.run(host="0.0.0.0", port=8123)
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