guanghu-ice-heart/zero-point/core-channel/revive-guard/repo-authorization-guard.py

66 lines
3 KiB
Python
Raw Normal View History

#!/usr/bin/env python3
"""Fail-closed Forgejo pre-receive gate for Lake Lamp repo-push grants."""
import json
import os
import re
import sys
import time
GRANT_DIR = os.environ.get("REPO_AUTHORIZATION_DIR", "/var/lib/guanghu/repo-authorizations")
PUBLIC_AUTHZ_URL = os.environ.get("LAKE_LAMP_PUBLIC_URL", "https://guanghulab.com/authz").rstrip("/")
def normalize_repo(value):
value = value.strip().lower().removesuffix(".git")
match = re.search(r"(?:gitea-repositories|repositories)/([^/]+/[^/]+)$", value)
if match:
return match.group(1)
# Forgejo's hook environment may expose only the repository name.
# This instance is single-owner and the allowlist below remains authoritative.
if re.fullmatch(r"[a-z0-9._-]+", value):
return f"bingshuo/{value}"
return value
def check(repo, now=None):
now = time.time() if now is None else now
repo = normalize_repo(repo)
if not re.fullmatch(r"bingshuo/[a-z0-9._-]+", repo):
return False, "repository_not_allowlisted"
filename = os.path.join(GRANT_DIR, repo.replace("/", "__") + ".json")
try:
with open(filename, encoding="utf-8") as handle:
grant = json.load(handle)
except (OSError, ValueError):
return False, "repo_push_approval_required"
if grant.get("repo") != repo or grant.get("target") != "JD-FD-PRIMARY":
return False, "repo_push_grant_binding_mismatch"
if now > float(grant.get("expires_at", 0)):
return False, "repo_push_grant_expired"
return True, "ok"
def rejection_message(repo, reason, public_url=None):
repo = normalize_repo(repo)
public_url = (public_url or PUBLIC_AUTHZ_URL).rstrip("/")
return "\n".join([
f"小湖灯推送门已锁定: {reason}",
"[LL-REPO-PUSH-AUTH-REQUIRED] 这不是凭证错误;不要向冰朔索要邮箱、授权码、验证码或密码。",
"从 fifth-domain 仓库根目录执行下面一条命令(把 <CURRENT_PERSONA_ID> 换成本轮已登记人格编号):",
(
"node server-tools/lake-lamp-authz/authorize-repo-push.js "
f"--url {public_url} --persona <CURRENT_PERSONA_ID> --repo {repo}"
),
"命令会创建一张无执行权申请单并打印 REQUEST_URL。把该链接交给冰朔保持命令运行。",
"冰朔打开 REQUEST_URL 后,服务器才向预登记邮箱发送批准邮件;冰朔点击邮件批准链接后,",
"命令会自动领取受限会话、读取并确认导航图,并返回结构化操作回执。许可不是 Git 密码;只有回执显示安全推送接收器 ready 时才按其指令继续。",
"说明: AI 不发送邮件、不需要知道邮箱;公开空工单本身不含任何推送权限。",
])
if __name__ == "__main__":
repo = os.environ.get("FORGEJO_REPO") or os.environ.get("GIT_DIR") or os.getcwd()
ok, reason = check(repo)
if not ok:
print(rejection_message(repo, reason), file=sys.stderr)
sys.exit(1)