P0-A: 修复鉴权体系

- check_endpoint_auth 路径归一化(无前导斜杠),v1/v2 端点级鉴权真正生效
- ADMIN_API_ENDPOINTS 重建:修复 files 单复数、补 mirrors/alerts/prewarm/api-docs/user-password
- handler check_auth 方法感知:公开端点仅 GET/HEAD,写操作默认要求认证(fail-closed)
- 补全受保护端点(monitor/activity/login-logs/mirrors/alerts/prewarm/file 元数据)
- _check_basic_auth/_check_token_auth 改用 hmac.compare_digest
- do_POST/do_HEAD 解析路径时剥离查询串;do_HEAD 增加 is_safe_path 检查
- is_safe_path 改用 realpath 防符号链接绕过
This commit is contained in:
HYC Fixer
2026-08-30 12:16:14 +08:00
parent a8e773839b
commit ffae028664
5 changed files with 164 additions and 66 deletions
+11
View File
@@ -85,6 +85,17 @@ class APIv1:
})
return
if auth_check.get('permission'):
if not auth_manager.check_permission(auth_result, auth_check['permission']):
handler.send_json_response({
"error": "权限不足",
"code": "FORBIDDEN",
"required_permission": auth_check['permission']
}, 403)
return
handler.auth_result = auth_result
# 文件管理API (GET /api/v1/files 不需要认证)
if path == 'files':
if method == 'GET':
+2 -2
View File
@@ -83,7 +83,6 @@ class APIv2(APIv1):
public_endpoints = [
'admin/auth/verify',
'user/login',
'user/password',
'search/enhanced',
'search/by-tag',
'search/by-date',
@@ -100,7 +99,8 @@ class APIv2(APIv1):
# 如果需要认证(不是公开端点且auth_type不是none)
if auth_manager and not is_public and not skip_auth:
auth_check = check_endpoint_auth(method, path, auth_manager)
# 传入完整路径(api/v2/ 前缀),与 ADMIN_API_ENDPOINTS 规则匹配
auth_check = check_endpoint_auth(method, f"api/v2/{path}", auth_manager)
if auth_check['required']:
auth_result = auth_manager.validate_request(handler, 'admin')
if not auth_result.get('authenticated'):
+69 -25
View File
@@ -520,39 +520,53 @@ def require_auth(required_level: str = "admin", permission: str = None):
# === 需要认证的API端点定义 ===
# 规则格式: 'METHOD:/api/vN/path' 或 'METHOD:/api/vN/prefix/'(前缀规则,尾斜杠)
# 匹配时路径统一归一化为无前导斜杠形式,与 v1/v2 传入的 api_action 对齐
ADMIN_API_ENDPOINTS = {
# 同步管理
'POST:/api/v2/sync/*': 'sync:manage',
'POST:/api/v2/sync/*/start': 'sync:start',
'POST:/api/v2/sync/*/stop': 'sync:stop',
'DELETE:/api/v2/sync/*': 'sync:manage',
'POST:/api/v2/sync/': 'sync:manage',
'DELETE:/api/v2/sync/': 'sync:manage',
# 缓存管理
'POST:/api/v2/cache/clean': 'cache:manage',
'DELETE:/api/v2/cache/*': 'cache:manage',
'POST:/api/v2/cache/prewarm/': 'cache:manage',
'DELETE:/api/v2/cache/prewarm/': 'cache:manage',
# Webhook管理
'POST:/api/v2/webhooks': 'webhook:create',
'PUT:/api/v2/webhooks/*': 'webhook:update',
'DELETE:/api/v2/webhooks/*': 'webhook:delete',
'POST:/api/v2/webhooks/*/trigger': 'webhook:trigger',
'PUT:/api/v2/webhooks/': 'webhook:update',
'DELETE:/api/v2/webhooks/': 'webhook:delete',
'POST:/api/v2/webhooks/': 'webhook:trigger',
# 服务器配置
'PUT:/api/v2/config': 'config:manage',
'POST:/api/v2/server/reload': 'server:reload',
'POST:/api/v2/server/': 'server:manage',
# 文件管理(高危操作)
'DELETE:/api/v2/files/*': 'files:delete',
'PUT:/api/v2/files/*/rename': 'files:rename',
# 文件管理(高危操作: 删除/重命名/元数据/版本)
'DELETE:/api/v1/file/': 'files:delete',
'DELETE:/api/v2/file/': 'files:delete',
'PUT:/api/v2/file/': 'files:update',
'POST:/api/v2/file/': 'files:update',
# 用户管理
'POST:/api/v2/users': 'users:create',
'DELETE:/api/v2/users/*': 'users:delete',
'PUT:/api/v2/users/*': 'users:update',
'DELETE:/api/v2/users/': 'users:delete',
'PUT:/api/v2/users/': 'users:update',
'POST:/api/v2/user/password': 'users:update',
# 镜像管理(写 settings.json,必须鉴权)
'POST:/api/v2/mirrors': 'mirrors:manage',
'PUT:/api/v2/mirrors/': 'mirrors:manage',
'DELETE:/api/v2/mirrors/': 'mirrors:manage',
# 告警配置与API文档生成
'PUT:/api/v2/alerts': 'config:manage',
'POST:/api/v2/alerts': 'config:manage',
'POST:/api/v2/api-docs/generate': 'config:manage',
# === API v1 文件操作认证 ===
'DELETE:/api/v1/file/*': 'files:delete',
'PUT:/api/v1/mkdir': 'files:create',
'POST:/api/v1/upload': 'files:upload',
'POST:/api/v1/batch': 'files:batch',
@@ -560,22 +574,52 @@ ADMIN_API_ENDPOINTS = {
}
def _normalize_endpoint_patterns():
"""把 ADMIN_API_ENDPOINTS 归一化为 (精确表, 前缀表)
规则格式: 'METHOD:/api/vN/path'
- 无通配符 → 精确匹配 (method, path)
- 尾斜杠或尾* → 前缀匹配, 匹配 norm_path.startswith(prefix + '/')
"""
exact = {}
prefix = []
for pattern, permission in ADMIN_API_ENDPOINTS.items():
pat_method, pat_path = pattern.split(':', 1)
pat_path = pat_path.lstrip('/')
if '*' in pattern or pat_path.endswith('/'):
if pat_path.endswith('*'):
pat_path = pat_path.rstrip('*')
pat_path = pat_path.rstrip('/')
prefix.append((pat_method, pat_path, permission))
else:
exact[(pat_method, pat_path)] = permission
return exact, prefix
_EXACT_ENDPOINTS, _PREFIX_ENDPOINTS = _normalize_endpoint_patterns()
def check_endpoint_auth(method: str, path: str, auth_manager: APIAuthManager) -> dict:
"""检查端点是否需要认证"""
key = f"{method}:{path}"
if key in ADMIN_API_ENDPOINTS:
"""检查端点是否需要认证
路径统一归一化为无前导斜杠形式(如 'api/v2/sync/sources'),
与 v1/v2 传入的 api_action 保持一致。
"""
norm_path = path.lstrip('/')
# 精确匹配
key = (method, norm_path)
if key in _EXACT_ENDPOINTS:
return {
"required": True,
"permission": ADMIN_API_ENDPOINTS[key]
"permission": _EXACT_ENDPOINTS[key]
}
for pattern, permission in ADMIN_API_ENDPOINTS.items():
if '*' in pattern:
pat_method, pat_path = pattern.split(':', 1)
if method == pat_method or pat_method == '*':
if pat_path.endswith('*'):
prefix = pat_path.rstrip('*').rstrip('/')
if path.startswith(prefix):
# 前缀匹配
for pat_method, pat_path, permission in _PREFIX_ENDPOINTS:
if method != pat_method and pat_method != '*':
continue
if norm_path.startswith(pat_path + '/'):
return {
"required": True,
"permission": permission
+6 -3
View File
@@ -84,10 +84,13 @@ def sanitize_filename(filename: str) -> str:
def is_safe_path(base_dir: str, path: str) -> bool:
"""检查路径是否安全(防止目录遍历)"""
"""检查路径是否安全(防止目录遍历)
使用 realpath 解析符号链接,避免 base_dir 内 symlink 指向外部目录的绕过。
"""
try:
abs_path = os.path.abspath(path)
abs_base = os.path.abspath(base_dir)
abs_path = os.path.realpath(path)
abs_base = os.path.realpath(base_dir)
common_path = os.path.commonpath([abs_path, abs_base])
return common_path == abs_base
except ValueError:
+69 -29
View File
@@ -254,7 +254,7 @@ class MirrorServerHandler(BaseHTTPRequestHandler):
return handler
def check_auth(self, path=None):
"""检查认证"""
"""检查认证(方法感知: 读操作与写操作区分对待)"""
# 获取检查路径
if path is not None:
check_path = path
@@ -263,6 +263,10 @@ class MirrorServerHandler(BaseHTTPRequestHandler):
else:
check_path = ''
# 去掉查询串(do_POST/do_HEAD 传入的路径可能带 ?query)
if '?' in check_path:
check_path = check_path.split('?', 1)[0]
# 根路径直接放行
if not check_path or check_path == '/':
return True
@@ -270,10 +274,20 @@ class MirrorServerHandler(BaseHTTPRequestHandler):
if not self.config:
return True
# 公开端点(不需要认证)- 文件只读操作
public_endpoints = [
# 登录
auth_type = self.config.get('auth_type', 'none')
if auth_type == 'none':
return True
method = (getattr(self, 'command', '') or 'GET').upper()
# 任何方法都公开的端点(登录、认证状态查询等)
public_any = [
'api/v2/user/login',
'api/v2/admin/auth/verify',
]
# 只读公开端点(仅 GET/HEAD 放行)
public_get = [
# 文件只读:列表/搜索/下载/mirror/mc
'api/v1/files',
'api/v1/file/',
@@ -288,17 +302,20 @@ class MirrorServerHandler(BaseHTTPRequestHandler):
'api/v2/health',
'api/v2/stats/',
'api/v2/cache/stats',
'api/v2/cache/popular',
'api/v2/api-docs.yaml',
# 镜像加速源代理下载(只读)
'api/v2/mirrors/pypi',
'api/v2/mirrors/npm',
'api/v2/mirrors/go',
'api/v2/mirrors/docker',
]
# 检查是否是公开端点
for endpoint in public_endpoints:
if check_path == endpoint or check_path.startswith(endpoint + '/'):
return True
# 需要认证的端点 - 所有修改操作
# 受保护前缀(GET/HEAD 命中也需要认证;写操作另有兜底)
protected_endpoints = [
# 用户操作
'api/v2/user/password', # 改密码
'api/v2/user/login-logs', # 登录日志(含IP)
'api/v2/users',
# 文件修改操作
'api/v1/upload',
@@ -314,27 +331,41 @@ class MirrorServerHandler(BaseHTTPRequestHandler):
'api/v2/config',
'api/v2/server/',
'api/v2/cache/clean',
'api/v2/cache/prewarm',
'api/v2/webhooks',
'api/v2/sync/',
'api/v2/file/', # 文件删除/重命名
'api/v2/file/', # 文件删除/重命名/元数据/版本/缩略图
'api/v2/mirrors', # 镜像管理(写 settings.json)
'api/v2/alerts',
'api/v2/activity',
'api/v2/monitor',
]
# 检查是否是需要认证的端点
is_protected = False
# 任何方法都公开
for endpoint in public_any:
if check_path == endpoint or check_path.startswith(endpoint + '/'):
return True
if method in ('GET', 'HEAD'):
# 只读公开端点放行
for endpoint in public_get:
if check_path == endpoint or check_path.startswith(endpoint + '/'):
return True
# 其余 GET: 命中受保护前缀才需要认证
for endpoint in protected_endpoints:
if check_path.startswith(endpoint):
is_protected = True
break
# 如果不是受保护端点,直接放行
if not is_protected:
return self._do_auth(auth_type)
return True
# 只有受保护端点才需要认证检查
auth_type = self.config.get('auth_type', 'none')
if auth_type == 'none':
# 写方法(POST/PUT/DELETE): API 路径一律要求认证,防止新增端点漏配
if check_path.startswith('api/'):
return self._do_auth(auth_type)
return True
elif auth_type == 'basic':
def _do_auth(self, auth_type):
"""执行指定类型的认证检查"""
if auth_type == 'basic':
return self._check_basic_auth()
elif auth_type == 'token':
return self._check_token_auth()
@@ -342,6 +373,7 @@ class MirrorServerHandler(BaseHTTPRequestHandler):
def _check_basic_auth(self):
"""检查基本认证"""
import hmac
auth_header = self.headers.get('Authorization')
if not auth_header or not auth_header.startswith('Basic '):
self.send_auth_required()
@@ -353,7 +385,8 @@ class MirrorServerHandler(BaseHTTPRequestHandler):
expected_user = self.config.get('auth_user', 'admin') if self.config else 'admin'
expected_pass = self.config.get('auth_pass', 'admin123') if self.config else 'admin123'
if username == expected_user and password == expected_pass:
# 恒定时间比较,防时序攻击
if hmac.compare_digest(username, expected_user) and hmac.compare_digest(password, expected_pass):
return True
else:
self.send_auth_required()
@@ -390,7 +423,8 @@ class MirrorServerHandler(BaseHTTPRequestHandler):
# 检查是否是静态 token
expected_token = self.config.get('auth_token') if self.config else None
if token and token == expected_token:
import hmac
if token and expected_token and hmac.compare_digest(token, expected_token):
return True
# 验证失败
@@ -504,7 +538,10 @@ class MirrorServerHandler(BaseHTTPRequestHandler):
if self.api_router is None and self.config is not None:
MirrorServerHandler.api_router = APIRouter(self.config)
path = unquote(self.path).lstrip('/')
# 解析路径(去掉查询串,避免把 ?query 拼进 API 路径)
parsed_path = urlparse(self.path)
path = unquote(parsed_path.path).lstrip('/')
query = parsed_path.query
# 调试模式输出完整路径 (debug-http)
if self._is_debug_enabled('http'):
@@ -516,8 +553,6 @@ class MirrorServerHandler(BaseHTTPRequestHandler):
return
if path.startswith("api/"):
parsed_path = urlparse(self.path)
query = parsed_path.query
self.api_router.handle_request(self, 'POST', path, query)
else:
self.send_error(405)
@@ -601,11 +636,16 @@ class MirrorServerHandler(BaseHTTPRequestHandler):
"""处理HEAD请求"""
if not self.check_auth():
return
path = unquote(self.path).lstrip('/')
# 解析路径(去掉查询串),并复用 serve_path 的安全检查防路径穿越
parsed_path = urlparse(self.path)
rel_path = unquote(parsed_path.path).lstrip('/')
if self.config is None:
self.send_error(500)
return
file_path = os.path.join(self.config['base_dir'], path)
file_path = os.path.join(self.config['base_dir'], rel_path)
if not is_safe_path(self.config['base_dir'], file_path):
self.send_error(403, "Access denied")
return
if os.path.isfile(file_path):
self.send_file_headers(file_path)
else: