feat: middle save

Makefile

@@ -0,0 +1 @@
+

app.py

@@ -1,5 +1,6 @@
-from routes.balance import router
 from fastapi import FastAPI, Response
+from routes.auth import router as auth
+from routes.balance import router as balance
 
 app = FastAPI()
 
@@ -8,4 +9,5 @@ def index(resp: Response):
 	resp.headers.setdefault("Content-Type", "text")
 	return "Hello, World!"
 
-app.include_router(router=router)
+app.include_router(router=auth)
+app.include_router(router=balance)

generate.py

@@ -5,14 +5,31 @@ def __main__():
 	conn = psycopg2.connect(conn_param)
 	cur = conn.cursor()
 
+	cur.execute(
+		"""
+		create table account(
+			name varchar(25),
+			username varchar(25) primary key,
+			password varchar(50) not null,
+			salt varchar(50)
+			unique(username)
+		);
+		"""
+	)
+
 	cur.execute(
 		"""
 		create table balset(
 			id serial primary key,
+			uid varchar(25) not null,
 			name varchar(50),
 			date bigint,
 			price bigint,
-			memo varchar(300)
+			memo varchar(300),
+			constraint FK_Account_ID
+				foreign key (uid)
+				references account(username)
+				on delete CASCADE
 		);
 		"""
 	)

routes/auth.py

@@ -0,0 +1,8 @@
+from fastapi import APIRouter
+from service.auth_service import Credential
+
+router = APIRouter()
+
+@router.post("/auth/login")
+def login(auth: Credential):
+	return {"ok": 1, "token": "Basic {}"}

routes/balance.py

@@ -5,14 +5,20 @@ from service.balance_service import Balance, BalanceService, UpdateForm
 router = APIRouter()
 
 @router.post("/balance", status_code=201)
-def insert(balance: Balance):
+def insert(balance: Balance, resp: Response):
 	started = datetime.now().microsecond / 1000
 	service = BalanceService()
-	name = service.create(balance=balance)
+	ok = service.create(balance=balance)
+	if not ok == 1:
+		resp.status_code = 500
+		return {
+			"ok": 0,
+			"errno": "error occurred to running transaction"
+		}
 
 	return {
 		"ok": 1,
-		"name": name,
+		"name": balance.name,
 		"respond_time": "{}ms".format(round((datetime.now().microsecond / 1000) - started))
 	}
 
@@ -63,7 +69,7 @@ def update(action, id, balance: UpdateForm, resp: Response):
 			"errno": "memo value size is too long: (maximum size: 300 bytes, your size: {} bytes)".format(len(balance.memo))
 		}
 
-	service.update(
+	ok = service.update(
 		int(id),
 		action, {
 			"name": balance.name,
@@ -73,6 +79,13 @@ def update(action, id, balance: UpdateForm, resp: Response):
 		}
 	)
 
+	if not ok == 1:
+		resp.status_code = 500
+		return {
+			"ok": 0,
+			"errno": "error occurred to running transaction"
+		}
+
 	return {
 		"ok": 1,
 		"id": int(id),
@@ -80,10 +93,16 @@ def update(action, id, balance: UpdateForm, resp: Response):
 	}
 
 @router.delete("/balance/{id}")
-def delete(id):
+def delete(id, resp: Response):
 	started = datetime.now().microsecond / 1000
 	service = BalanceService()
-	service.delete(int(id))
+	ok = service.delete(int(id))
+	if not ok == 1:
+		resp.status_code = 500
+		return {
+			"ok": 0,
+			"errno": "error occurred to running transaction"
+		}
 
 	return {
 		"ok": 1,

service/auth_service.py

@@ -0,0 +1,54 @@
+import base64, psycopg2
+from fastapi import Request
+from pydantic import BaseModel
+from util.config import conn_param
+
+class AuthData:
+	name: str
+	username: str
+	password: str
+	salt: str
+
+class Register:
+	name: str
+	username: str
+	password: str
+
+class Credential(BaseModel):
+	username: str
+	password: str
+
+class AuthService:
+	def __init__(self):
+		self._conn = psycopg2.connect(conn_param)
+
+	def read(self, username: str):
+		cur = self._conn.cursor()
+		
+		cur.execute("select * from account where username = %s;", (username))
+		data = cur.fetchone()
+		if data == None:
+			return None
+		
+		cur.close()
+		self._conn.close()
+
+		return AuthData(
+			name = data[0],
+			username = data[1],
+			password = data[2],
+			salt = data[3]
+		)
+
+	def check_auth(self, req: Request) -> bool:
+		raw = req.headers.get("Authorization")
+		raw_token = raw.removeprefix("Basic ").encode("ascii")
+
+		token = base64.b64decode(raw_token)
+		data = token.decode("utf-8").split(":")
+
+		acc = self.read(data[0])
+		if acc.username == data[0] and acc.password == data[1]:
+			return True
+		
+		return False

service/balance_service.py

@@ -18,19 +18,24 @@ class BalanceService:
 	def __init__(self):
 		self._conn = psycopg2.connect(conn_param)
 
-	def create(self, balance: Balance) -> str:
+	def create(self, balance: Balance):
+		ok = True
 		cur = self._conn.cursor()
+		try:
 			cur.execute(
 				"insert into balset(name, date, price, memo) values (%s, %s, %s, %s);",
 				(balance.name, balance.date, balance.price, balance.memo)
 			)
 
 			self._conn.commit()
-		
+		except:
+			self._conn.rollback()
+			ok = False
+		finally:
 			cur.close()
 			self._conn.close()
 
-		return balance.name
+		return ok
 	
 	def read(self, id: int):
 		cur = self._conn.cursor()
@@ -53,19 +58,31 @@ class BalanceService:
 		}
 	
 	def update(self, id: int, act: str, balance: UpdateForm):
+		ok = True
 		cur = self._conn.cursor()
+		try:
 			cur.execute(f"update balset set {act} = %s where id = %s;", (balance[act], id))
-
 			self._conn.commit()
-
+		except:
+			self._conn.rollback()
+			ok = False
+		finally:
 			cur.close()
 			self._conn.close()
 
+		return ok
+	
 	def delete(self, id: int):
+		ok = True
 		cur = self._conn.cursor()
+		try:
 			cur.execute("delete from balset where id = %s;", (id))
-
 			self._conn.commit()
-
+		except:
+			self._conn.rollback()
+			ok = False
+		finally:
 			cur.close()
 			self._conn.close()
+		
+		return ok

util/auth_lib.py

@@ -0,0 +1,12 @@
+import base64
+from hashlib import sha256
+
+def hash(password: str, salt: str):
+	return sha256("{}:{}".format(password, salt))
+
+def gen_token(username: str, hashed_password: str):
+	raw = ("{}:{}".format(username, hashed_password)).encode("utf-8")
+	raw_token = base64.b64encode(raw)
+
+	token = raw_token.decode("ascii")
+	return token