340 lines
12 KiB
Python
340 lines
12 KiB
Python
from base64 import b64decode
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import sqlite3, uvicorn, sys, bcrypt, secrets, re, os, asyncio, httpx, urllib, websockets
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from fastapi import FastAPI, Request, HTTPException, WebSocket
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from starlette.middleware.sessions import SessionMiddleware
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from pydantic import BaseModel
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from fastapi.responses import FileResponse, StreamingResponse
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from utils import SQLite, KeyValueStorage, gen_internal_port, ProxyManager, from_name_get_id, STATUS
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ON_DOCKER = len(sys.argv) > 1 and sys.argv[1] == "DOCKER"
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DEBUG = len(sys.argv) > 1 and sys.argv[1] == "DEBUG"
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# DB init
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if not os.path.exists("db"): os.mkdir("db")
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db = SQLite('db/firegex.db')
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db.connect()
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conf = KeyValueStorage(db)
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firewall = ProxyManager(db)
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app = FastAPI(debug=DEBUG)
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@app.on_event("shutdown")
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def shutdown_event():
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firewall.close()
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db.disconnect()
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app.add_middleware(SessionMiddleware, secret_key=os.urandom(32))
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SESSION_TOKEN = secrets.token_hex(8)
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APP_STATUS = "init"
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REACT_BUILD_DIR = "../frontend/build/" if not ON_DOCKER else "frontend/"
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REACT_HTML_PATH = os.path.join(REACT_BUILD_DIR,"index.html")
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def is_loggined(request: Request):
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global SESSION_TOKEN
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return request.session.get("token", "") == SESSION_TOKEN
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def login_check(request: Request):
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if is_loggined(request): return True
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raise HTTPException(status_code=401, detail="Invalid login session!")
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@app.get("/api/status")
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async def get_status(request: Request):
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global APP_STATUS
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return {
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"status":APP_STATUS,
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"loggined": is_loggined(request)
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}
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class PasswordForm(BaseModel):
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password: str
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class PasswordChangeForm(BaseModel):
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password: str
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expire: bool
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@app.post("/api/login")
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async def login_api(request: Request, form: PasswordForm):
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global APP_STATUS, SESSION_TOKEN
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if APP_STATUS != "run": raise HTTPException(status_code=400)
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if form.password == "":
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return {"status":"Cannot insert an empty password!"}
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await asyncio.sleep(0.3) # No bruteforce :)
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if bcrypt.checkpw(form.password.encode(), conf.get("password").encode()):
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request.session["token"] = SESSION_TOKEN
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return { "status":"ok" }
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return {"status":"Wrong password!"}
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@app.get("/api/logout")
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async def logout(request: Request):
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request.session["token"] = False
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return { "status":"ok" }
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@app.post('/api/change-password')
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async def change_password(request: Request, form: PasswordChangeForm):
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login_check(request)
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global APP_STATUS, SESSION_TOKEN
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if APP_STATUS != "run": raise HTTPException(status_code=400)
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if form.password == "":
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return {"status":"Cannot insert an empty password!"}
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if form.expire:
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SESSION_TOKEN = secrets.token_hex(8)
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request.session["token"] = SESSION_TOKEN
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hash_psw = bcrypt.hashpw(form.password.encode(), bcrypt.gensalt())
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conf.put("password",hash_psw.decode())
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return {"status":"ok"}
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@app.post('/api/set-password')
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async def set_password(request: Request, form: PasswordForm):
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global APP_STATUS, SESSION_TOKEN
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if APP_STATUS != "init": raise HTTPException(status_code=400)
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if form.password == "":
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return {"status":"Cannot insert an empty password!"}
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hash_psw = bcrypt.hashpw(form.password.encode(), bcrypt.gensalt())
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conf.put("password",hash_psw.decode())
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APP_STATUS = "run"
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request.session["token"] = SESSION_TOKEN
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return {"status":"ok"}
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@app.get('/api/general-stats')
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async def get_general_stats(request: Request):
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login_check(request)
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return db.query("""
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SELECT
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(SELECT COALESCE(SUM(blocked_packets),0) FROM regexes) closed,
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(SELECT COUNT(*) FROM regexes) regexes,
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(SELECT COUNT(*) FROM services) services
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""")[0]
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@app.get('/api/services')
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async def get_services(request: Request):
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login_check(request)
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return db.query("""
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SELECT
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s.service_id `id`,
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s.status status,
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s.public_port public_port,
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s.internal_port internal_port,
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s.name name,
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COUNT(r.regex_id) n_regex,
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COALESCE(SUM(r.blocked_packets),0) n_packets
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FROM services s LEFT JOIN regexes r ON r.service_id = s.service_id
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GROUP BY s.service_id;
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""")
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@app.get('/api/service/{service_id}')
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async def get_service(request: Request, service_id: str):
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login_check(request)
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res = db.query("""
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SELECT
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s.service_id `id`,
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s.status status,
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s.public_port public_port,
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s.internal_port internal_port,
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s.name name,
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COUNT(r.regex_id) n_regex,
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COALESCE(SUM(r.blocked_packets),0) n_packets
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FROM services s LEFT JOIN regexes r ON r.service_id = s.service_id WHERE s.service_id = ?
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GROUP BY s.service_id;
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""", service_id)
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if len(res) == 0: raise HTTPException(status_code=400, detail="This service does not exists!")
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return res[0]
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@app.get('/api/service/{service_id}/stop')
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async def get_service_stop(request: Request, service_id: str):
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login_check(request)
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firewall.change_status(service_id,STATUS.STOP)
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return {'status': 'ok'}
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@app.get('/api/service/{service_id}/pause')
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async def get_service_pause(request: Request, service_id: str):
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login_check(request)
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firewall.change_status(service_id,STATUS.PAUSE)
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return {'status': 'ok'}
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@app.get('/api/service/{service_id}/start')
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async def get_service_start(request: Request, service_id: str):
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login_check(request)
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firewall.change_status(service_id,STATUS.ACTIVE)
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return {'status': 'ok'}
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@app.get('/api/service/{service_id}/delete')
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async def get_service_delete(request: Request, service_id: str):
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login_check(request)
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db.query('DELETE FROM services WHERE service_id = ?;', service_id)
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db.query('DELETE FROM regexes WHERE service_id = ?;', service_id)
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firewall.fire_update(service_id)
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return {'status': 'ok'}
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@app.get('/api/service/{service_id}/regen-port')
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async def get_regen_port(request: Request, service_id: str):
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login_check(request)
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db.query('UPDATE services SET internal_port = ? WHERE service_id = ?;', gen_internal_port(db), service_id)
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firewall.fire_update(service_id)
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return {'status': 'ok'}
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@app.get('/api/service/{service_id}/regexes')
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async def get_service_regexes(request: Request, service_id: str):
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login_check(request)
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return db.query("""
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SELECT
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regex, mode, regex_id `id`, service_id, is_blacklist,
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blocked_packets n_packets, is_case_sensitive
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FROM regexes WHERE service_id = ?;
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""", service_id)
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@app.get('/api/regex/{regex_id}')
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async def get_regex_id(request: Request, regex_id: int):
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login_check(request)
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res = db.query("""
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SELECT
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regex, mode, regex_id `id`, service_id, is_blacklist,
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blocked_packets n_packets, is_case_sensitive
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FROM regexes WHERE `id` = ?;
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""", regex_id)
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if len(res) == 0: raise HTTPException(status_code=400, detail="This regex does not exists!")
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return res[0]
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@app.get('/api/regex/{regex_id}/delete')
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async def get_regex_delete(request: Request, regex_id: int):
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login_check(request)
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res = db.query('SELECT * FROM regexes WHERE regex_id = ?;', regex_id)
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if len(res) != 0:
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db.query('DELETE FROM regexes WHERE regex_id = ?;', regex_id)
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firewall.fire_update(res[0]["service_id"])
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return {'status': 'ok'}
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class RegexAddForm(BaseModel):
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service_id: str
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regex: str
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mode: str
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is_blacklist: bool
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is_case_sensitive: bool
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@app.post('/api/regexes/add')
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async def post_regexes_add(request: Request, form: RegexAddForm):
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login_check(request)
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try:
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re.compile(b64decode(form.regex))
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except Exception:
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return {"status":"Invalid regex"}
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try:
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db.query("INSERT INTO regexes (service_id, regex, is_blacklist, mode, is_case_sensitive ) VALUES (?, ?, ?, ?, ?);",
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form.service_id, form.regex, form.is_blacklist, form.mode, form.is_case_sensitive)
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except sqlite3.IntegrityError:
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return {'status': 'An identical regex already exists'}
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firewall.fire_update(form.service_id)
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return {'status': 'ok'}
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class ServiceAddForm(BaseModel):
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name: str
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port: int
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@app.post('/api/services/add')
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async def post_services_add(request: Request, form: ServiceAddForm):
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login_check(request)
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serv_id = from_name_get_id(form.name)
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try:
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db.query("INSERT INTO services (name, service_id, internal_port, public_port, status) VALUES (?, ?, ?, ?, ?)",
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form.name, serv_id, gen_internal_port(db), form.port, 'stop')
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firewall.reload()
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except sqlite3.IntegrityError:
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return {'status': 'Name or/and port of the service has been already assigned to another service'}
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return {'status': 'ok'}
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async def frontend_debug_proxy(path):
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httpc = httpx.AsyncClient()
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req = httpc.build_request("GET",urllib.parse.urljoin(f"http://0.0.0.0:{os.getenv('F_PORT','3000')}", path))
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resp = await httpc.send(req, stream=True)
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return StreamingResponse(resp.aiter_bytes(),status_code=resp.status_code)
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async def react_deploy(path):
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file_request = os.path.join(REACT_BUILD_DIR, path)
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if not os.path.isfile(file_request):
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return FileResponse(REACT_HTML_PATH, media_type='text/html')
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else:
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return FileResponse(file_request)
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if DEBUG:
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async def forward_websocket(ws_a: WebSocket, ws_b: websockets.WebSocketClientProtocol):
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while True:
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data = await ws_a.receive_bytes()
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await ws_b.send(data)
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async def reverse_websocket(ws_a: WebSocket, ws_b: websockets.WebSocketClientProtocol):
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while True:
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data = await ws_b.recv()
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await ws_a.send_text(data)
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@app.websocket("/ws")
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async def websocket_debug_proxy(ws: WebSocket):
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await ws.accept()
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async with websockets.connect(f"ws://0.0.0.0:{os.getenv('F_PORT','3000')}/ws") as ws_b_client:
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fwd_task = asyncio.create_task(forward_websocket(ws, ws_b_client))
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rev_task = asyncio.create_task(reverse_websocket(ws, ws_b_client))
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await asyncio.gather(fwd_task, rev_task)
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@app.get("/{full_path:path}")
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async def catch_all(request: Request, full_path:str):
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if DEBUG:
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try:
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return await frontend_debug_proxy(full_path)
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except Exception:
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return {"details":"Frontend not started at "+f"http://0.0.0.0:{os.getenv('F_PORT','3000')}"}
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else: return await react_deploy(full_path)
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if __name__ == '__main__':
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db.create_schema({
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'services': {
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'status': 'VARCHAR(100) NOT NULL',
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'service_id': 'VARCHAR(100) PRIMARY KEY',
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'internal_port': 'INT NOT NULL CHECK(internal_port > 0 and internal_port < 65536) UNIQUE',
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'public_port': 'INT NOT NULL CHECK(internal_port > 0 and internal_port < 65536) UNIQUE',
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'name': 'VARCHAR(100) NOT NULL'
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},
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'regexes': {
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'regex': 'TEXT NOT NULL',
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'mode': 'VARCHAR(1) NOT NULL',
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'service_id': 'VARCHAR(100) NOT NULL',
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'is_blacklist': 'BOOLEAN NOT NULL CHECK (is_blacklist IN (0, 1))',
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'blocked_packets': 'INTEGER UNSIGNED NOT NULL DEFAULT 0',
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'regex_id': 'INTEGER PRIMARY KEY',
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'is_case_sensitive' : 'BOOLEAN NOT NULL CHECK (is_case_sensitive IN (0, 1))',
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'FOREIGN KEY (service_id)':'REFERENCES services (service_id)',
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},
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'keys_values': {
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'key': 'VARCHAR(100) PRIMARY KEY',
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'value': 'VARCHAR(100) NOT NULL',
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},
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})
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db.query("CREATE UNIQUE INDEX IF NOT EXISTS unique_regex_service ON regexes (regex,service_id,is_blacklist,mode,is_case_sensitive);")
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if not conf.get("password") is None:
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APP_STATUS = "run"
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firewall.reload()
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# os.environ {PORT = Backend Port (Main Port), F_PORT = Frontend Port}
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uvicorn.run(
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"app:app",
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host="0.0.0.0",
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port=int(os.getenv("PORT","4444")),
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reload=DEBUG,
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access_log=DEBUG,
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)
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