Ally/registration

app/__init__.py

@@ -3,6 +3,7 @@
 from config import Config
 from flask_sqlalchemy import SQLAlchemy
 from flask_migrate import Migrate
+from flask_login import LoginManager
 
 
 # Construct core Flask application with embedded Dash app.
@@ -11,6 +12,10 @@
 app.config.from_object(Config)
 db = SQLAlchemy(app)
 migrate = Migrate(app, db)
+login = LoginManager(app)
+login.login_view='login'
+
+from app import routes,models
 
 
 with app.app_context():

app/forms.py

@@ -1,10 +1,28 @@
 from flask_wtf import FlaskForm
 from wtforms import StringField, PasswordField, BooleanField, SubmitField
-from wtforms.validators import DataRequired
+from wtforms.validators import DataRequired, ValidationError, Email, EqualTo
+from app.models import User
 
 
 class LoginForm(FlaskForm):
     username = StringField("Username", validators=[DataRequired()])
     password = PasswordField("Password", validators=[DataRequired()])
     remember_me = BooleanField("Remember Me")
     submit = SubmitField("Log In")
+
+class RegistrationForm(FlaskForm):
+    username = StringField('Username', validators=[DataRequired()])
+    email = StringField('Email',validators=[DataRequired(), Email()])
+    password = PasswordField('Password', validators=[DataRequired()])
+    password2 = PasswordField('Repeat Password', validators=[DataRequired(), EqualTo('password')])
+    submit = SubmitField('Register')
+
+    def validate_usernames(self, username):
+        user = User.query.filter_by(username=username.data).first()
+        if user is not None:
+            raise ValidationError('This username is already in use.')
+
+    def validate_email(self, email):
+        user = User.query.filter_by(email=email.data).first()
+        if user is not None:
+            raise ValidationError('Please use a different email address')

app/models.py

@@ -1,5 +1,7 @@
 from datetime import datetime
-from app import db
+from app import db, login
+from werkzeug.security import generate_password_hash, check_password_hash
+from flask_login import UserMixin
 
 
 user_coins = db.Table(
@@ -13,7 +15,7 @@
 )
 
 
-class User(db.Model):
+class User(db.Model, UserMixin):
     __tablename__ = "user"
     id = db.Column(db.Integer, primary_key=True)
     username = db.Column(db.String(64), index=True, unique=True)
@@ -26,6 +28,15 @@ class User(db.Model):
     def __repr__(self):
         return "<User {}>".format(self.username)
 
+    def set_password(self, password):
+        self.password_hash = generate_password_hash(password)
+
+    def check_password(self, password):
+        return check_password_hash(self.password_hash, password)
+
+@login.user_loader
+def load_user(id):
+    return User.query.get(int(id))
 
 class Coin(db.Model):
     __tablename__ = "coin"

app/routes.py

@@ -1,6 +1,8 @@
-from flask import render_template, flash, redirect, url_for
-from app import app
-from app.forms import LoginForm
+from flask import render_template, flash, redirect, url_for, request
+from app import app,db
+from app.forms import LoginForm, RegistrationForm
+from flask_login import current_user, login_user, logout_user, login_required
+from werkzeug.urls import url_parse
 
 
 @app.route("/")
@@ -11,22 +13,44 @@ def index():
         {"author": {"username": "Sal"}, "body": "Beautiful day in Portland!"},
         {"author": {"username": "Michael"}, "body": "Pyrates are so cool!"},
         {"author": {"username": "Scott"}, "body": "Ooh, Bootstrap!"},
+        {"author": {"username": "Allyson"}, "body": "Hello, World!"},
     ]
     return render_template("index.html", title="Home", user=user, posts=posts)
 
 
 @app.route("/login", methods=["GET", "POST"])
 def login():
-    form = LoginForm()
+    if current_user.is_authenticated:
+        return redirect(url_for('index'))
+    form=LoginForm()
     if form.validate_on_submit():
-        flash(
-            f"Login requested for user {form.username.data}, "
-            f"remember_me={form.remember_me.data}"
-        )
-        return redirect(url_for("index"))
-    return render_template("login.html", title="Log In", form=form)
+        user=User.query.filter_by(username=form.username.data).first()
+        if user is None or not user.check_password(form.password.data):
+            flash('Invalid username or password')
+            return redirect(url_for('login'))
+        login_user(user, remember=form.remember_me.data)
+        next_page = request.args.get('next')
+        if not next_page or url_parse(next_page).netloc !='':
+            next_page = url_for('index')
+        return redirect(url_for('index'))
+    return render_template('login.html', title='Sign In', form=form)
 
+@app.route('/logout')
+def logout():
+    logout_user()
+    return redirect(url_for('index'))
 
-@app.route("/register")
+
+@app.route("/register", methods=['GET', 'POST'])
 def register():
-    return render_template("wip.html")
+    if current_user.is_authenticated:
+        return redirect(url_for('index'))
+    form = RegistrationForm()
+    if form.validate_on_submit():
+        user = User(username=form.username.data, email=form.email.data)
+        user.set_password(form.password.data)
+        db.session.add(user)
+        db.session.commit()
+        flash('WELCOME!  YOU GOT CRYPTO!')
+        return redirect(url_for('login'))
+    return render_template('register.html', title='Register', form=form)

app/templates/404.html

@@ -1,7 +1,7 @@
 {% extends "base.html" %}
 {% block content %}
     <div class="container">
-        <h1>Page Not Found</h1>
+        <h1>Page Has Been Eaten by a Gru</h1>
         <p><a href="{{ url_for('index') }}">Back to home</a></p>
     </div>
 {% endblock %}

app/templates/base.html

@@ -17,8 +17,12 @@
                 </ul>
                 <ul class="nav navbar-nav navbar-right">
                     <li><a href="{{ url_for('register') }}"><span class="glyphicon glyphicon-user"></span> Register</a></li>
+                    {% if current_user.is_anonymous %}
                     <li><a href="{{ url_for('login') }}"><span class="glyphicon glyphicon-log-in"></span> Login</a></li>
+                    {% else %}
                     <li><a href="{{ url_for('/dash/') }}"><span class="glyphicon glyphicon-signal"></span> Dash Testing</a></li>
+                    <li><a href="{{ url_for('logout') }}"><span class="glyphicon glyphicon-log-out"></span> Logout</a></li>
+                    {% endif %}
                 </ul>
             </div>
         </div>

app/templates/login.html

@@ -1,7 +1,7 @@
 {% extends "base.html" %}
 
 {% block content %}
-     <div class="container">
+      <div class="container">
 
             <h1>Log In</h1>
 
@@ -24,6 +24,6 @@ <h1>Log In</h1>
                <p>{{ form.remember_me() }} {{ form.remember_me.label }}</p>
                <p>{{ form.submit() }}</p>
             </form>
-
-        </div>
+            <p>New User?<a href="{{ url_for('register')}}">Click to Register!</a></p>
+      </div>
 {% endblock %}

app/templates/register.html

@@ -0,0 +1,37 @@
+{% extends 'base.html' %} 
+
+{% block content %}
+    <h1>Register</h1>
+    <form action ="" method="post">
+        {{ form.hidden_tag() }}
+        <p> 
+            {{ form.username.label }}<br>
+            {{ form.username(size=32) }}<br>
+            {% for error in form.username.errors %} 
+            <span style="color:red;">[{{ error }}]</span>
+            {% endfor %}
+        </p>
+        <p>
+            {{ form.email.label }}<br>
+            {{ form.email(size=32) }}<br>
+            {% for error in form.email.errors %}
+            <span style="color:red;">[{{ error }}]</span>
+            {% endfor %}
+        </p>
+        <p>
+            {{ form.password.label }}<br>
+            {{ form.password(size=32) }}<br>
+            {% for error in form.password.errors %}
+            <span style="color:red;">[{{ error }}]</span>
+            {% endfor %}
+        </p>
+        <p>
+            {{ form.password2.label }}<br>
+            {{ form.password2(size=32) }}<br>
+            {% for error in form.password2.errors %}
+            <span style="color:red;">[{{ error }}]</span>
+            {% endfor %}
+        </p>
+        <p>{{ form.submit() }}</p>
+    </form>
+{% endblock %}

pyproject.toml

@@ -20,6 +20,8 @@ pycoingecko = "==2.2.0"
 Werkzeug = "==2.0.0" # required pin https://github.com/plotly/dash/issues/1992
 PyMySQL = "==1.0.2"
 cryptography = "==37.0.2"
+Flask-Login = "^0.6.1"
+email-validator = "^1.2.1"
 
 [tool.poetry.dev-dependencies]
 black = "==22.3.0"