Lan
98 lines
3.0 KiB
Python
98 lines
3.0 KiB
Python
# @Time : 2023/8/15 17:43
|
|
# @Author : Lan
|
|
# @File : depends.py
|
|
# @Software: PyCharm
|
|
from fastapi import Header, HTTPException, Depends
|
|
from fastapi.requests import Request
|
|
import base64
|
|
import hmac
|
|
import json
|
|
import time
|
|
from core.settings import settings
|
|
from apps.admin.services import FileService, ConfigService, LocalFileService
|
|
|
|
def create_token(data: dict, expires_in: int = 3600 * 24) -> str:
|
|
"""
|
|
创建JWT token
|
|
:param data: 数据负载
|
|
:param expires_in: 过期时间(秒)
|
|
"""
|
|
header = base64.b64encode(json.dumps({"alg": "HS256", "typ": "JWT"}).encode()).decode()
|
|
payload = base64.b64encode(json.dumps({
|
|
**data,
|
|
"exp": int(time.time()) + expires_in
|
|
}).encode()).decode()
|
|
|
|
signature = hmac.new(
|
|
settings.jwt_secret_key.encode(),
|
|
f"{header}.{payload}".encode(),
|
|
'sha256'
|
|
).digest()
|
|
signature = base64.b64encode(signature).decode()
|
|
|
|
return f"{header}.{payload}.{signature}"
|
|
|
|
def verify_token(token: str) -> dict:
|
|
"""
|
|
验证JWT token
|
|
:param token: JWT token
|
|
:return: 解码后的数据
|
|
"""
|
|
try:
|
|
header_b64, payload_b64, signature_b64 = token.split('.')
|
|
|
|
# 验证签名
|
|
expected_signature = hmac.new(
|
|
settings.jwt_secret_key.encode(),
|
|
f"{header_b64}.{payload_b64}".encode(),
|
|
'sha256'
|
|
).digest()
|
|
expected_signature_b64 = base64.b64encode(expected_signature).decode()
|
|
|
|
if signature_b64 != expected_signature_b64:
|
|
raise ValueError("无效的签名")
|
|
|
|
# 解码payload
|
|
payload = json.loads(base64.b64decode(payload_b64))
|
|
|
|
# 检查是否过期
|
|
if payload.get("exp", 0) < time.time():
|
|
raise ValueError("token已过期")
|
|
|
|
return payload
|
|
except Exception as e:
|
|
raise ValueError(f"token验证失败: {str(e)}")
|
|
|
|
async def admin_required(authorization: str = Header(default=None), request: Request = None):
|
|
"""
|
|
验证管理员权限
|
|
"""
|
|
try:
|
|
if not authorization or not authorization.startswith('Bearer '):
|
|
raise ValueError("缺少Bearer token")
|
|
|
|
token = authorization.split(' ')[1]
|
|
payload = verify_token(token)
|
|
is_admin = payload.get("is_admin", False)
|
|
|
|
if request.url.path.startswith('/share/'):
|
|
if not settings.openUpload and not is_admin:
|
|
raise HTTPException(status_code=403, detail='本站未开启游客上传，如需上传请先登录后台')
|
|
else:
|
|
if not is_admin:
|
|
raise HTTPException(status_code=401, detail='未授权或授权校验失败')
|
|
return is_admin
|
|
except ValueError as e:
|
|
raise HTTPException(status_code=401, detail=str(e))
|
|
|
|
async def get_file_service():
|
|
return FileService()
|
|
|
|
|
|
async def get_config_service():
|
|
return ConfigService()
|
|
|
|
|
|
async def get_local_file_service():
|
|
return LocalFileService()
|