Write simple login page

apps/admin.py

@@ -1,12 +1,11 @@
-from flask import Blueprint,render_template
+from flask import Blueprint,render_template,session,redirect,url_for
 from werkzeug.security import generate_password_hash
 
 admin = Blueprint('admin',__name__)
 
 @admin.route("/admin")
 def admin_page():
-    return render_template("admin.html")
-
-@admin.route("/new-web-user",methods=["POST"])
-def new_web_user():
-    return "Create a new web user"
+    if ( "username" in session):
+        return render_template("admin.html",username=session["username"])
+    
+    return redirect(url_for("login/"))

apps/auth.py

@@ -1,6 +1,8 @@
-from flask import Blueprint,render_template,request,redirect,url_for
+from flask import Blueprint,render_template,request,redirect,url_for,session
 from werkzeug.security import check_password_hash
 
+from database.models import WebUser
+
 auth = Blueprint('auth',__name__)
 
 @auth.route("/")
@@ -13,9 +15,19 @@ def login():
     username = request.form.get("username")
     password = request.form.get("password")
     
-    # TODO: check hash password in database
+    if (not username) or (not password):
+        return "Enter username/password"
+    
+    # TODO: Write simple frontened (if username is None or password is None)
+    if (WebUser.userExists(username)):
+        user = WebUser.get(WebUser.username == username)
 
-    return "Some operations"
+        if ( check_password_hash(user.password_hash,password)):
+            session["username"] = username
+            return redirect(url_for("admin.admin_page"))
+        else:
+            return "Password not valid"
+    return "User not exist"
 
 @auth.route("/logout")
 def logout():

database/database.py

@@ -0,0 +1 @@
+from models import WebUser

database/models.py

@@ -14,14 +14,16 @@ class WebUser(Model):
         db_table = "webusers"
         database = db
     
-    def userExists(self,username) -> bool:
+    @staticmethod
+    def userExists(username) -> bool:
         """Check if the username exists in a database."""
         query = WebUser.select().where(WebUser.username == username)
         
-        if (not query) or (not query.exists()):
-            return False
+        if (query):
+            if (query.exists()):
+                return True
 
-        return True
+        return False
 
 def build_models():
     db.create_tables([WebUser])

templates/login.html

@@ -1,3 +1,5 @@
-<!-- Login form -->
-
-Login page
+<form action="/login" method="post">
+    <p><input type="text" name="username" placeholder="Enter username"></p>
+    <p><input type="password" name="password" placeholder="Enter password"></p>
+    <p><button type="sumbit">Log In</button></p>
+</form>