added functional groups api + started pictures

src/api/utils.py

@@ -10,9 +10,10 @@ from jwt.exceptions import InvalidTokenError
 # from passlib.context import CryptContext
 from psycopg2._psycopg import connection
 
+import db.groups
 import db.users
 import settings.startup_settings as startup_settings
-from api.models import TokenData, User
+from api.models import Group, TokenData, User
 from db.internal import get_db_connection
 
 # pwd_context = CryptContext(schemes=["bcrypt"], deprecated="auto")
@@ -38,9 +39,13 @@ def authenticate_user(
     username: str,
     user_password: str
 ):
-    db_user_password = db.users.get_user_password(conn, username)
     if not user_password:
         return False
+
+    db_user_password = db.users.get_user_password(conn, username)
+    if db_user_password is None:
+        return False
+
     if not verify_password(user_password, db_user_password):
         return False
     return True
@@ -64,7 +69,7 @@ async def get_current_user(
     credentials_exception = HTTPException(
         status_code=status.HTTP_401_UNAUTHORIZED,
         detail="Could not validate credentials",
-        headers={"WWW-Authenticate": "Bearer"},
+        headers={"WWW-Authenticate": "Bearer"}
     )
 
     try:
@@ -90,3 +95,19 @@ async def get_current_user(
         )
 
     return user
+
+def get_group_by_name(
+    conn: connection,
+    groupname: str
+):
+    group_exception = HTTPException(
+        status_code=status.HTTP_404_NOT_FOUND,
+        detail="No such group"
+    )
+    group = Group()
+    group_data = db.groups.get_group(conn, groupname)
+    if group_data is None:
+        raise group_exception
+
+    group.fill(group_data)
+    return group