add partial frontend

core/data/schema/user.py

@@ -1,9 +1,14 @@
 from enum import Enum
 from typing import Dict, Optional
-from sqlalchemy import Table, Column
+from sqlalchemy import Table, Column, and_
 from sqlalchemy.types import Integer, String, TIMESTAMP
 from sqlalchemy.sql.schema import ForeignKey
 from sqlalchemy.sql import func
+from sqlalchemy.dialects.mysql import insert
+from sqlalchemy.sql import func, select, Delete
+from uuid import uuid4
+from datetime import datetime, timedelta
+from sqlalchemy.engine import Row
 
 from core.data.schema.base import BaseData, metadata
 
@@ -26,6 +31,7 @@ frontend_session = Table(
     metadata,
     Column("id", Integer, primary_key=True, unique=True),
     Column("user", ForeignKey("aime_user.id", ondelete="cascade", onupdate="cascade"), nullable=False),
+    Column("ip", String(15)),
     Column('session_cookie', String(32), nullable=False, unique=True),
     Column("expires", TIMESTAMP, nullable=False),
     mysql_charset='utf8mb4'
@@ -37,21 +43,83 @@ class PermissionBits(Enum):
     PermSysAdmin = 4
 
 class UserData(BaseData):
-    def create_user(self, username: str = None, email: str = None, password: str = None) -> Optional[int]:
-
+    def create_user(self, id: int = None, username: str = None, email: str = None, password: str = None, permission: int = 1) -> Optional[int]:
         if email is None:
-            permission = None
-        else:
-            permission = 0
+            permission = 1
 
-        sql = aime_user.insert().values(username=username, email=email, password=password, permissions=permission)
+        if id is None:
+            sql = insert(aime_user).values(
+                username=username, 
+                email=email, 
+                password=password, 
+                permissions=permission
+            )
+        else:
+            sql = insert(aime_user).values(
+                id=id, 
+                username=username, 
+                email=email, 
+                password=password, 
+                permissions=permission
+            )
+
+        conflict = sql.on_duplicate_key_update(
+            username=username, 
+            email=email, 
+            password=password, 
+            permissions=permission
+        )
         
-        result = self.execute(sql)
+        result = self.execute(conflict)
         if result is None: return None
         return result.lastrowid
     
+    def login(self, user_id: int, passwd: bytes = None, ip: str = "0.0.0.0") -> Optional[str]:
+        sql = select(aime_user).where(and_(aime_user.c.id == user_id, aime_user.c.password == passwd))
+
+        result = self.execute(sql)
+        if result is None: return None
+        
+        usr = result.fetchone()
+        if usr is None: return None
+
+        return self.create_session(user_id, ip)
+    
+    def check_session(self, cookie: str, ip: str = "0.0.0.0") -> Optional[Row]:
+        sql = select(frontend_session).where(
+            and_(
+                frontend_session.c.session_cookie == cookie,
+                frontend_session.c.ip == ip
+            )
+        )
+
+        result = self.execute(sql)
+        if result is None: return None        
+        return result.fetchone()
+    
+    def delete_session(self, session_id: int) -> bool:
+        sql = Delete(frontend_session).where(frontend_session.c.id == session_id)
+
+        result = self.execute(sql)
+        if result is None: return False
+        return True
+
+    def create_session(self, user_id: int, ip: str = "0.0.0.0", expires: datetime = datetime.now() + timedelta(days=1)) -> Optional[str]:
+        cookie = uuid4().hex
+
+        sql = insert(frontend_session).values(
+            user = user_id,
+            ip = ip,
+            session_cookie = cookie,
+            expires = expires
+        )
+
+        result = self.execute(sql)
+        if result is None:
+            return None
+        return cookie
+
     def reset_autoincrement(self, ai_value: int) -> None:
-        # Didn't feel like learning how to do this the right way
-        # if somebody wants a free PR go nuts I guess
+        # ALTER TABLE isn't in sqlalchemy so we do this the ugly way
         sql = f"ALTER TABLE aime_user AUTO_INCREMENT={ai_value}"
         self.execute(sql)