2026-07-24 10:39:10 +08:00
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#!/usr/bin/env python3
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"""Fail-closed Forgejo pre-receive gate for Lake Lamp repo-push grants."""
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import json
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import os
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import re
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import sys
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import time
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GRANT_DIR = os.environ.get("REPO_AUTHORIZATION_DIR", "/var/lib/guanghu/repo-authorizations")
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PUBLIC_AUTHZ_URL = os.environ.get("LAKE_LAMP_PUBLIC_URL", "https://guanghulab.com/authz").rstrip("/")
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def normalize_repo(value):
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value = value.strip().lower().removesuffix(".git")
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match = re.search(r"(?:gitea-repositories|repositories)/([^/]+/[^/]+)$", value)
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if match:
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return match.group(1)
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# Forgejo's hook environment may expose only the repository name.
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# This instance is single-owner and the allowlist below remains authoritative.
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if re.fullmatch(r"[a-z0-9._-]+", value):
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return f"bingshuo/{value}"
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return value
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def check(repo, now=None):
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now = time.time() if now is None else now
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repo = normalize_repo(repo)
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if not re.fullmatch(r"bingshuo/[a-z0-9._-]+", repo):
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return False, "repository_not_allowlisted"
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filename = os.path.join(GRANT_DIR, repo.replace("/", "__") + ".json")
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try:
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with open(filename, encoding="utf-8") as handle:
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grant = json.load(handle)
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except (OSError, ValueError):
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return False, "repo_push_approval_required"
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if grant.get("repo") != repo or grant.get("target") != "JD-FD-PRIMARY":
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return False, "repo_push_grant_binding_mismatch"
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if now > float(grant.get("expires_at", 0)):
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return False, "repo_push_grant_expired"
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return True, "ok"
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def rejection_message(repo, reason, public_url=None):
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repo = normalize_repo(repo)
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public_url = (public_url or PUBLIC_AUTHZ_URL).rstrip("/")
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return "\n".join([
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f"小湖灯推送门已锁定: {reason}",
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"[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。",
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"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）：",
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(
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"node server-tools/lake-lamp-authz/authorize-repo-push.js "
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f"--url {public_url} --persona <CURRENT_PERSONA_ID> --repo {repo}"
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),
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"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。",
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"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，",
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2026-07-26 15:36:14 +08:00
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"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。",
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2026-07-24 10:39:10 +08:00
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"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。",
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])
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if __name__ == "__main__":
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repo = os.environ.get("FORGEJO_REPO") or os.environ.get("GIT_DIR") or os.getcwd()
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ok, reason = check(repo)
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if not ok:
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print(rejection_message(repo, reason), file=sys.stderr)
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sys.exit(1)
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