use get_user whenever possible instead of repeating code

files/routes/login.py

@@ -377,15 +377,11 @@ def post_forgot():
 	if not email_regex.fullmatch(email):
 		return render_template("login/forgot_password.html", error="Invalid email!"), 400
 
+	user = get_user(username, graceful=True)
 	
-	username = username.lstrip('@').replace('\\', '').replace('_', '\_').replace('%', '').strip()
 	email = email.replace('\\', '').replace('_', '\_').replace('%', '').strip()
 
-	user = g.db.query(User).filter(
-		User.username.ilike(username),
-		User.email.ilike(email)).one_or_none()
-
-	if user:
+	if user and user.email.lower() == email.lower():
 		now = int(time.time())
 		token = generate_hash(f"{user.id}+{now}+forgot+{user.login_nonce}")
 		url = f"{SITE_FULL}/reset?id={user.id}&time={now}&token={token}"

files/routes/settings.py

@@ -732,7 +732,7 @@ def settings_name_change(v):
 
 	new_name = request.values.get("name").strip()
 
-	if new_name==v.username:
+	if new_name == v.username:
 		abort(400, "You didn't change anything")
 
 	if v.patron:
@@ -743,17 +743,9 @@ def settings_name_change(v):
 	if not used_regex.fullmatch(new_name):
 		abort(400, "This isn't a valid username.")
 
-	search_name = new_name.replace('\\', '').replace('_','\_').replace('%','')
+	existing = get_user(new_name, graceful=True)
 
-	x = g.db.query(User).filter(
-		or_(
-			User.username.ilike(search_name),
-			User.original_username.ilike(search_name),
-			User.prelock_username.ilike(search_name),
-			)
-		).one_or_none()
-
-	if x and x.id != v.id:
+	if existing and existing.id != v.id:
 		abort(400, f"Username `{new_name}` is already in use.")
 
 	v.username = new_name

files/routes/users.py

@@ -710,20 +710,12 @@ def is_available(name):
 
 	name = name.strip()
 
-	if len(name)<3 or len(name)>25:
-		return {name:False}
+	if len(name) < 3 or len(name) > 25:
+		return {name: False}
 
-	name2 = name.replace('\\', '').replace('_','\_').replace('%','')
+	existing = get_user(name, graceful=True)
 
-	x = g.db.query(User).filter(
-		or_(
-			User.username.ilike(name2),
-			User.original_username.ilike(name2),
-			User.prelock_username.ilike(name2),
-			)
-		).one_or_none()
-
-	if x:
+	if existing:
 		return {name: False}
 	else:
 		return {name: True}