site/backend/app/routes.py

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from flask import render_template, flash, redirect, url_for, request
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from flask_login import current_user, login_user, logout_user, login_required
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from urllib.parse import urlsplit
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from datetime import datetime, timezone
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import sqlalchemy as sa
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from app import app, db
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from app.forms import LoginForm, RegistrationForm, EditProfileForm, EmptyForm, PostForm, ResetPasswordRequestForm, ResetPasswordForm
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from app.models import User, Post
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from app.email import send_password_reset_email
#debug:
#import sys
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@app.before_request
def before_request():
if current_user.is_authenticated:
current_user.last_seen = datetime.now(timezone.utc)
db.session.commit()
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@app.route('/', methods=['GET', 'POST'])
@app.route('/index', methods=['GET', 'POST'])
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@login_required
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def index():
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app.logger.info('@@@@@@@@@@@@@@@@@ INFO LOG TEST INDEX')
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form = PostForm()
#user = {'username': 'aaa', 'email': 'a@a.a'}
if form.validate_on_submit():
post = Post(body=form.post.data, author=current_user)
db.session.add(post)
db.session.commit()
flash('Your post has been added.')
return redirect(url_for('index'))
#posts = db.session.scalars(current_user.following_posts()).all()
page = request.args.get('page', 1, type=int)
posts = db.paginate(current_user.following_posts(), page=page, per_page=app.config['POSTS_PER_PAGE'], error_out=False)
next_url = url_for('index', page=posts.next_num) if posts.has_next else None
prev_url = url_for('index', page=posts.prev_num) if posts.has_prev else None
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return render_template('index.html', title='Home', form=form, posts=posts.items, next_url=next_url, prev_url=prev_url)
@app.route('/explore')
@login_required
def explore():
query = sa.select(Post).order_by(Post.timestamp.desc())
page = request.args.get('page', 1, type=int)
posts = db.paginate(query, page=page, per_page=app.config['POSTS_PER_PAGE'], error_out=False)
next_url = url_for('explore', page=posts.next_num) if posts.has_next else None
prev_url = url_for('explore', page=posts.prev_num) if posts.has_prev else None
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return render_template('explore.html', title='Explore', posts=posts.items, next_url=next_url, prev_url=prev_url)
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@app.route('/login', methods=['GET', 'POST'])
def login():
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if current_user.is_authenticated:
return redirect(url_for('index'))
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form = LoginForm()
if form.validate_on_submit():
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user = db.session.scalar(sa.select(User).where(User.username == form.username.data))
if user is None or not user.check_password(form.password.data):
flash('Invalid u or p')
return redirect(url_for('login'))
login_user(user, remember=form.remember_me.data)
next_page = request.args.get('next')
if not next_page or urlsplit(next_page).netloc != '':
next_page = url_for('index')
return redirect(next_page)
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return render_template('login.html', title='Sign In', form=form)
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@app.route('/logout')
def logout():
logout_user()
return redirect(url_for('index'))
@app.route('/register', methods=['GET', 'POST'])
def register():
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()
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#user.gen_avatar()
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flash('User has been created.')
return redirect(url_for('login'))
return render_template('register.html', title='Register', form=form)
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@app.route('/reset_password/<token>', methods=['GET', 'POST'])
def reset_password(token):
if current_user.is_authenticated:
return redirect(url_for('index'))
user = User.verify_reset_password_token(token)
if not user:
return redirect(url_for('index'))
form = ResetPasswordForm()
if form.validate_on_submit():
user.set_password(form.password.data)
db.session.commit()
flash('Your password has been reset.')
return redirect(url_for('login'))
return render_template('reset_password.html', form=form)
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@app.route('/user/<username>')
@login_required
def user(username):
user = db.first_or_404(sa.select(User).where(User.username == username))
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page = request.args.get('page', 1, type=int)
query = user.posts.select().order_by(Post.timestamp.desc())
posts = db.paginate(query, page=page, per_page=app.config['POSTS_PER_PAGE'], error_out=False)
next_url = url_for('user', username=user.username, page=posts.next_num) if posts.has_next else None
prev_url = url_for('user', username=user.username, page=posts.prev_num) if posts.has_prev else None
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form = EmptyForm()
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return render_template('user.html', user=user, posts=posts.items, next_url=next_url, prev_url=prev_url, form=form)
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@app.route('/edit_profile', methods=['GET', 'POST'])
@login_required
def edit_profile():
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form = EditProfileForm(current_user.username)
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if form.validate_on_submit():
current_user.username = form.username.data
current_user.about_me = form.about_me.data
db.session.commit()
flash('Profile changes have been saved.')
return redirect(url_for('edit_profile'))
elif request.method == 'GET':
form.username.data = current_user.username
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form.about_me.data = current_user.about_me
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return render_template('edit_profile.html', title='Edit Profile', form=form)
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@app.route('/follow/<username>', methods=['POST'])
@login_required
def follow(username):
form = EmptyForm()
if form.validate_on_submit():
user = db.session.scalar(sa.select(User).where(User.username == username))
if user is None:
flash(f'User {username} not found.')
return redirect(url_for('index'))
if user == current_user:
flash('You cannot follow yourself.')
return redirect(url_for('user', username=username))
current_user.follow(user)
db.session.commit()
flash(f'You are now following {username}.')
return redirect(url_for('user', username=username))
else:
return redirect(url_for('index'))
@app.route('/unfollow/<username>', methods=['POST'])
@login_required
def unfollow(username):
form = EmptyForm()
if form.validate_on_submit():
user = db.session.scalar(sa.select(User).where(User.username == username))
if user is None:
flash(f'User {username} not found.')
return redirect(url_for('index'))
if user == current_user:
flash('You cannot unfollow yourself.')
return redirect(url_for('user', username=username))
current_user.unfollow(user)
db.session.commit()
flash(f'You have unfollowed {username}.')
return redirect(url_for('user', username=username))
else:
return redirect(url_for('index'))
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@app.route('/reset_password_request', methods=['GET', 'POST'])
def reset_password_request():
if current_user.is_authenticated:
return redirect(url_for('index'))
form = ResetPasswordRequestForm()
if form.validate_on_submit():
user = db.session.scalar(sa.select(User).where(User.email == form.email.data))
if user:
send_password_reset_email(user)
flash('Password reset sent.')
return redirect(url_for('login'))
return render_template('reset_password_request.html', title='Reset Password', form=form)
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