Pirouz Web Framework

A web framework built with Python.

Sample Weblog Project

The simple weblog created with pirouz web framework. You can see weblog sources here before that install pirouz with pip in your system.

Install Pirouz

pip install pirouz

Imports

from pirouz import (
    App, BaseMiddleware,
    Render as Render_, TextResponse, redirect,
    DB, ResultConfig, columns, OR
)
from pirouz.utils import cleaned_data, encrypt

Create App

app = App(__file__)

Run Web Server

For run web server using python:

if __name__ == '__main__':
    app.run(port=8001)

Run server using gunicorn:

gunicorn -w 4 app:app --reload

Create Models

class User(DB):
    username = columns.VarChar(unique=True, nullable=False)
    password = columns.Text(nullable=False)
    email = columns.Text()
    first_name = columns.VarChar()
    last_name = columns.VarChar()


class Post(DB):
    title = columns.Text(nullable=False)
    body = columns.Text()
    author = columns.ForeignKey(User)
    like_count = columns.SmallInt(default=0)
    created = columns.Date()

Create Middleware

class AuthMiddleware(BaseMiddleware):
    def process_request(self, request):
        request.user = None
        username = request.cookies.get('username')
        password = request.cookies.get('password')
        try:
            user = User.filter(username=username).first()
            if user.password == password:
                request.user = user
        except Exception:
            pass
        return request


app.add_middleware(AuthMiddleware)

Serve Files

app.serve_files()

Add Context Processor

class Render(Render_):
    def get_context(self, request) -> dict:
        return {
            'user': request.user,
            'posts_count': Post.all().count(),
        }

Function View

@app.route('/')
def index(request):
    context = {
        'posts': Post.all(
            config=ResultConfig(
                order_by='id',
                reverse=True,
            )
        ),
    }
    return Render(request, 'post/list.html', context=context)

Class View

A detail view for detail of post.

@app.route('/post/<int:id>/')
class PostDetail:
    def get(self, request, id):
        post = Post.filter(id=id).first()
        if not post:
            return TextResponse(f'Post with ID {id} not found!', status=404)
        context = {
            'post': post,
            'author': User.filter(id=post.author).first(),
        }
        return Render(request, 'post/detail.html', context=context)

    def post(self, request, id):
        return self.get(request, id)

A create view for create new post.

@app.route("/create/", methods=["GET", "POST"])
class PostCreate:
    def get(self, request):
        if not request.user:
            return redirect('/login/')
        return Render(request, 'post/create.html')

    def post(self, request):
        if not request.user:
            return redirect('/login/')
        cd = cleaned_data(request)
        post = Post(
            title=cd["title"],
            body=cd['body'],
            author=request.user,
            like_count=randint(1, 100),
            created=str(datetime.now().date()),
        )
        return redirect(f'/post/{post.id}/')

Authentication

Register view for sign up a user.

@app.route("/register/", methods=["GET", "POST"])
class Register:
    def get(self, request):
        return Render(request, 'post/register.html')

    def post(self, request):
        cd = cleaned_data(request)
        password = encrypt(cd['password'])
        username = cd['username']
        try:
            user = User.filter(username=username).first()
            if user:
                return Render(
                    request,
                    'post/register.html',
                    context={'exists': True}
                )
        except Exception:
            pass
        User(
            username=username,
            password=password,
            email=cd['email'],
            first_name=cd['first_name'],
            last_name=cd['last_name'],
        )
        response = redirect('/')
        response.set_cookie('username', username)
        response.set_cookie('password', password)
        return response

Login view for user login.

@app.route("/login/", methods=["GET", "POST"])
class Login:
    def get(self, request):
        return Render(request, 'post/login.html')

    def post(self, request):
        cd = cleaned_data(request)
        password = encrypt(cd['password'])
        username = cd['username']
        try:
            user = User.filter(username=username).first()
            if user and user.password == password:
                response = redirect('/')
                response.set_cookie('username', username)
                response.set_cookie('password', password)
                return response
        except Exception:
            pass
        return Render(request, 'post/login.html', context={'wrong': True})

Logout view for logout the user

@app.route('/exit/', methods=['GET'])
class Logout:
    def get(self, request):
        response = redirect('/')
        response.delete_cookie('username')
        response.delete_cookie('password')
        return response

Search View

@app.route('/search/')
class Search:
    def get(self, request):
        query = request.args.get('search')
        context = {
            'search': True,
        }
        if query:
            posts = Post.filter(
                OR(
                    title__like=f'%{query}%',
                    body__like=f'%{query}%',
                ),
                config=ResultConfig(
                    order_by='id',
                    reverse=True,
                )
            )
            context.update({
                'posts': posts,
            })
        return Render(request, 'post/list.html', context=context)

    def post(self, request):
        return self.get(request)

Links

Download Source Code: Click Here

My Github Account: Click Here