-
Notifications
You must be signed in to change notification settings - Fork 0
/
main.py
199 lines (169 loc) · 5.84 KB
/
main.py
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
from fastapi import Request, FastAPI, status, Response, Cookie
import redis
import sqlite3
from hashlib import sha256, md5
from fastapi.responses import RedirectResponse
from fastapi.responses import HTMLResponse
from fastapi.responses import JSONResponse
from secrets import token_hex
from urllib.parse import unquote_plus
from cryptography.fernet import Fernet
import base64
import requests
import json
app = FastAPI()
def check_auth(token):
if token == None:
return False
cur = redis.Redis(host='localhost', port=6379, db=0)
if not cur.exists(token):
return False
cur = None
return True
@app.get("/", response_class=HTMLResponse)
async def read_root():
template = '''
<!html>
<head>
</head>
<body>
<p>Чат 1.1</p>
<form action="/auth" method="post">
<p><input type="text" name="login"></p>
<p><input type="text" name="password"></p>
<p><input type="submit" value="Войти"></p>
</form>
</body>
</html>
'''
return template
@app.post("/auth", response_class=HTMLResponse)
async def read_item(data: Request, response: Response):
con = sqlite3.connect('users.db')
cur = con.cursor()
info_users = await data.body()
info_users = dict(map(lambda x: x.split('='), info_users.decode('utf-8').split('&')))
cur.execute("select * from users where name=? and password=?", (info_users['login'], sha256(str.encode(info_users['password'])).hexdigest()),)
row = cur.fetchone()
if row == None:
return RedirectResponse(url="/", status_code=status.HTTP_303_SEE_OTHER)
cur.close()
token = token_hex(16)
response.set_cookie(key="token", value=token)
cur = redis.Redis(host='localhost', port=6379, db=0)
key = Fernet.generate_key()
cur.set(token, key)
timeout = 3600
cur.expire(token, timeout)
cur = None
template = f'<p>Теперь вы {token}</p><a href="/{token}">Перейти в чат</a>'
return template
@app.get("/{tmp_user_name}", response_class=HTMLResponse)
async def mess(token = Cookie(None)):
if not check_auth(token):
return 'Вам не рады'
template = f'''
<!html>
<head>
<style>
section {{
display: flex;
flex-direction: row;
}}
article {{
padding: 10px;
margin: 10px;
background: grey;
}}
p {{
word-wrap: break-word;
overflow-x:hidden;
color:white;
}}
</style>
</head>
<body>
<section>
<article>
<p>Приветствуем {token}</p>
<form action="/write_mess" method="post">
<p><textarea name="w_mess_text" placeholder="Текст сообщения"></textarea></p>
<p><textarea name="w_mess_token" placeholder="Токен сообщения"></textarea></p>
<p><textarea name="w_mess_key" placeholder="Секретный ключ"></textarea></p>
<p><textarea name="w_mess_ttl" placeholder="Время жизни сообщения (в секундах)"></textarea></p>
<p><input type="submit" value="Написать личное сообщение"></p>
</form>
<form action="/read_mess" method="post">
<p><textarea name="r_mess_token" placeholder="Токен сообщения"></textarea></p>
<p><textarea name="r_mess_key" placeholder="Секретный ключ"></textarea></p>
<p><input type="submit" value="Прочитать личное сообщение"></p>
</form>
</article>
</section>
</body>
</html>
'''
return template
@app.post("/write_mess")
async def registration(data: Request, token = Cookie(None)):
if not check_auth(token):
return 'Вам не рады'
info_mess = await data.body()
info_mess = dict(map(lambda x: x.split('='), info_mess.decode('utf-8').split('&')))
cur = redis.Redis(host='localhost', port=6379, db=1)
key = base64.urlsafe_b64encode(md5(info_mess['w_mess_key'].encode()).hexdigest().encode())
crypt = Fernet(key)
cur.set(info_mess['w_mess_token'], crypt.encrypt(str.encode(info_mess['w_mess_text'])))
cur.expire(info_mess['w_mess_token'], int(info_mess['w_mess_ttl']))
cur = None
return RedirectResponse(url=f"/{token}", status_code=status.HTTP_303_SEE_OTHER)
@app.post("/read_mess")
async def registration(data: Request, token = Cookie(None)):
if not check_auth(token):
return 'Вам не рады'
info_mess = await data.body()
info_mess = dict(map(lambda x: x.split('='), info_mess.decode('utf-8').split('&')))
cur = redis.Redis(host='localhost', port=6379, db=1)
mess = cur.get(info_mess['r_mess_token'])
if mess == None:
return "Кажется тут ничего нет"
key = base64.urlsafe_b64encode(md5(info_mess['r_mess_key'].encode()).hexdigest().encode())
crypt = Fernet(key)
mess = crypt.decrypt(mess)
mess = mess.decode('utf8')
cur = None
return unquote_plus(mess)
@app.get("/registration", response_class=HTMLResponse)
async def registration():
template = '''
<p>Регистрация<p>
<form action="/insert_user" method="post">
<p><input type="text" name="login"></p>
<p><input type="text" name="password"></p>
<p><input type="submit" value="Зарегестрировать"></p>
</form>
'''
return template
@app.post("/insert_user")
async def registration(data: Request):
con = sqlite3.connect('users.db')
cur = con.cursor()
info_users = await data.body()
info_users = dict(map(lambda x: x.split('='), info_users.decode('utf-8').split('&')))
salt = ""
cur.execute("insert into users(name, password) values (?, ?)", (info_users['login'], sha256(str.encode(info_users['password']) + salt).hexdigest()),)
con.commit()
cur.close()
return RedirectResponse(url="/registration", status_code=status.HTTP_303_SEE_OTHER)
@app.get("/create_db/{db_name}")
async def registration(db_name):
con = sqlite3.connect(db_name)
cur = con.cursor()
buff = '''
CREATE TABLE IF NOT EXISTS users (
name text NOT NULL,
password text NOT NULL
);
'''
cur.execute(buff)
return cur.fetchone()