287 lines
9.7 KiB
Python
287 lines
9.7 KiB
Python
from fastapi.security import OAuth2PasswordBearer
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from fastapi import FastAPI, Cookie, Response, Form
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from fastapi.templating import Jinja2Templates
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from fastapi.responses import RedirectResponse, HTMLResponse
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from datetime import timedelta, datetime
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from contextlib import asynccontextmanager
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from . import db
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from . import email as email_sys
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from . import reg
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import hashlib
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import uuid
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from typing import Annotated
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import re
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import asyncio
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import uvicorn
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from .cfg import config
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import pygtrie
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ALGORITHM = config["common"]["algorithm"]
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ACCESS_TOKEN_EXPIRE_MINUTES = config["common"]["access_token_expire_minutes"]
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ACCESS_EMAIL_EXPIRE_MINUTES = config["common"]["access_email_expire_minutes"]
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ROOT = config["common"]["root"]
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CLEAN_TIMEOUT = config["common"]["clean_timeout"]
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MANAGE_KEY = config["common"]["manage_key"]
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REDIRECT_URL_WHITELIST = config["common"]["redirect_url_whitelist"]
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tokens = pygtrie.StringTrie()
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apikeys = pygtrie.StringTrie()
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emails = pygtrie.StringTrie()
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email_send_lst = []
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def prep_uuid(uuid: str):
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return '/'.join(list(uuid))
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def clean_uuid(uuid: str):
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return uuid.replace("/", "")
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async def clean_sys():
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while 1:
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await asyncio.sleep(CLEAN_TIMEOUT)
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for k, v in tokens.items():
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if (v[1] < datetime.now()):
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del tokens[k]
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for k, v in apikeys.items():
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if (v[1] < datetime.now()):
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del apikeys[k]
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for k, v in emails.items():
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if (v[2] < datetime.now()):
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del emails[k]
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async def send_email():
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while 1:
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if (len(email_send_lst) > 0):
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infos = email_send_lst.pop(0)
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asyncio.create_task(email_sys.sendemail(infos[0], infos[1]))
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await asyncio.sleep(0.1)
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else:
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await asyncio.sleep(5)
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@asynccontextmanager
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async def lifespan(app: FastAPI):
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await db.connect_db()
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asyncio.create_task(clean_sys())
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asyncio.create_task(send_email())
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yield
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app = FastAPI(lifespan=lifespan)
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templates = Jinja2Templates(directory="src")
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oauth2_scheme = OAuth2PasswordBearer(tokenUrl="token")
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def check_passwd(passwd: str):
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if (len(passwd) < 8):
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return 1
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pattern = r'^(?![a-zA-Z]+$)(?!\d+$)(?![^\da-zA-Z\s]+$).{8,40}$'
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if re.match(pattern, passwd):
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return 0
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else:
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return 1
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async def authenticate_user(username: str, password: str):
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hashed_password = await db.get_user(username)
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if not hashed_password:
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return False
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return hashed_password == hashlib.sha256(
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password.encode("utf-8")).hexdigest()
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async def create_token(username: str):
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tkn = prep_uuid(uuid.uuid4().hex)
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tokens[tkn] = (username, datetime.now() +
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timedelta(minutes=float(ACCESS_TOKEN_EXPIRE_MINUTES)))
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return tkn
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async def check_token(tkn: str):
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res = tokens.get(tkn, None)
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if (res is None):
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return ""
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if (res[1] < datetime.now()):
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del tokens[tkn]
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return ""
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return res[0]
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async def check_apikey(tkn: str):
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res = apikeys.get(tkn, None)
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if (res is None):
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return ""
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if (res[1] < datetime.now()):
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del apikeys[tkn]
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return ""
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return res[0]
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@app.post("/api/login")
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async def login_callback(response: Response, username: str = Form(), password: str = Form()):
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if (await authenticate_user(username, password)):
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tokennow = await create_token(username)
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tkn = prep_uuid(uuid.uuid4().hex)
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apikeys[tkn] = tokens[tokennow]
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response.set_cookie("session", clean_uuid(tokennow))
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return {"msg": "", "key": tkn}
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else:
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return {"msg": "用户名或密码错误", "key": ""}
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regex = re.compile(
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r'([A-Za-z0-9]+[.-_])*[A-Za-z0-9]+@[A-Za-z0-9-]+(\.[A-Z|a-z]{2,})+')
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@app.post("/api/signup")
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async def login_callback(username: str = Form(), password: str = Form(), email: str = Form()):
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if (check_passwd(password)):
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return {"msg": "密码强度弱，请至少包含一个大小写字符与数字且长度>8", "code": 1}
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if (not re.fullmatch(regex, email)):
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return {"msg": "邮箱不合法", "code": 1}
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if not (await db.check_user(username)):
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tkn = prep_uuid(uuid.uuid4().hex)
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emails[tkn] = (username, hashlib.sha256(
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password.encode("utf-8")).hexdigest(), datetime.now() +
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timedelta(minutes=float(ACCESS_EMAIL_EXPIRE_MINUTES)), email)
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email_send_lst.append(
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(email, ROOT+"/api/checkemail?uid="+clean_uuid(tkn)))
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return {"msg": "验证邮件已发送到邮箱，请在10分钟内完成验证", "code": 0}
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else:
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return {"msg": "用户名重复", "code": 1}
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@app.get("/api/checkemail")
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async def checkemail(uid: str):
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uid = prep_uuid(uid)
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if (uid not in emails):
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return templates.TemplateResponse("checkemail.html", {"request": {}, "msg": "不存在的注册id"})
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if (emails[uid][2] < datetime.now()):
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del emails[uid]
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return templates.TemplateResponse("checkemail.html", {"request": {}, "msg": "链接已过期"})
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if (emails[uid][1] == ""):
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return templates.TemplateResponse("checkemail.html", {"request": {}, "msg": "不存在的注册id"})
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if await db.create_user(emails[uid][0], emails[uid][1], emails[uid][3]) == 0:
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del emails[uid]
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return templates.TemplateResponse("checkemail.html", {"request": {}, "msg": "创建成功"})
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else:
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del emails[uid]
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return templates.TemplateResponse("checkemail.html", {"request": {}, "msg": "重复的用户名"})
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@app.get("/api/resetpasswd", response_class=HTMLResponse)
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async def resetpasswd(uid: str, response: Response):
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uid = prep_uuid(uid)
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if (uid not in emails):
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return templates.TemplateResponse("checkemail.html", {"request": {}, "msg": "不存在的验证id"})
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if (emails[uid][2] < datetime.now()):
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del emails[uid]
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return templates.TemplateResponse("checkemail.html", {"request": {}, "msg": "链接已过期"})
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if (emails[uid][1] != ""):
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return templates.TemplateResponse("checkemail.html", {"request": {}, "msg": "不存在的注册id"})
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tokennow = await create_token(emails[uid][0])
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tkn = prep_uuid(uuid.uuid4().hex)
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apikeys[tkn] = tokens[tokennow]
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response.set_cookie("session", clean_uuid(tokennow))
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del emails[uid]
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return '<html><head><meta http-equiv="refresh" content="0;url=/user"><title>正在跳转</title></head><body>正在跳转</body></html>'
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@app.post("/api/send_resetpasswd")
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async def resetpasswd(username: str = Form()):
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if (await db.check_user(username)):
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email = await db.get_email(username)
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tkn = prep_uuid(uuid.uuid4().hex)
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emails[tkn] = (username, "", datetime.now() +
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timedelta(minutes=float(ACCESS_EMAIL_EXPIRE_MINUTES)), email)
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email_send_lst.append(
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(email, ROOT+"/api/resetpasswd?uid="+clean_uuid(tkn)))
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return {"msg": "验证邮件已发送到邮箱，请在10分钟内完成验证", "code": 0}
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else:
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return {"msg": "用户名不存在", "code": 1}
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@app.get("/api/getinfo")
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async def get_user_info(uid: str):
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uid = prep_uuid(uid)
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username = await check_apikey(uid)
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if (username == ""):
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return {"code": 1, "msg": "token无效", "data": {}}
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return {"code": 0, "msg": "", "data": {"username": username, "email": await db.get_email(username)}}
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@app.post("/api/changepasswd")
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async def changepasswd(password: str = Form(), session: Annotated[str | None, Cookie()] = None):
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if (check_passwd(password)):
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return {"msg": "密码强度弱，请至少包含一个大小写字符与数字且长度>8"}
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if (session is not None):
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session = prep_uuid(session)
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username = await check_token(session)
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if (username != ""):
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await db.update_passwd(username, hashlib.sha256(
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password.encode("utf-8")).hexdigest())
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del tokens[session]
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return {"msg": ""}
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else:
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return {"msg": "无效的登录token"}
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else:
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return {"msg": "无效的登录token"}
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@app.get("/login")
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async def login(state: str = "", client_id: str = "", redirect_url: str = "/user", session: Annotated[str | None, Cookie()] = None):
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now_redirect_url = redirect_url.replace(
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"https://", "").replace("http://", "").split("#")[0].rstrip("/")
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if (now_redirect_url not in REDIRECT_URL_WHITELIST):
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return templates.TemplateResponse("checkemail.html", {"request": {}, "msg": "无效的重定向URL"})
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if (session is not None):
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session = prep_uuid(session)
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username = await check_token(session)
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if (username != ""):
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tkn = prep_uuid(uuid.uuid4().hex)
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apikeys[tkn] = tokens[session]
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return RedirectResponse(url=redirect_url+f"#access_token={tkn}&token_type=Bearer&state={state}")
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return templates.TemplateResponse("login.html", {"request": {}, "redirect_url": redirect_url, "state": state})
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@app.get("/signup")
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async def login(redirect_url: str):
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return templates.TemplateResponse("signup.html", {"request": {}, "redirect_url": redirect_url})
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@app.get("/user")
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async def login(session: Annotated[str | None, Cookie()] = None):
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if (session is not None):
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session = prep_uuid(session)
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username = await check_token(session)
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if (username == ""):
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return RedirectResponse(url="/login?redirect_url=/user")
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return templates.TemplateResponse("manage.html", {"request": {}})
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@app.get("/resetpasswd")
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async def resetpasswd(response: Response):
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return templates.TemplateResponse("resetpasswd.html", {"request": {}})
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@app.get("/manager/init")
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async def init(key: str):
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if (key != MANAGE_KEY):
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return 1
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await db.create_db()
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return 0
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reg.main(app, ROOT, apikeys)
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def run():
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uvicorn.run(app, host="0.0.0.0", port=8000)
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