Rename Flask template app to pbpl

Signed-off-by: Arija A. <ari@ari.lt>

src/pbpl/views/home.py

@@ -0,0 +1,97 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+"""Home routes"""
+
+import typing as t
+
+import flask
+from werkzeug.wrappers import Response
+
+import pbpl.forms.prow as form_pow
+import pbpl.forms.text as text_form
+from pbpl.db import db
+from pbpl.models import TextModel
+
+from .bp import Bp
+
+home: Bp = Bp("home", __name__)
+
+__all__: t.Tuple[str] = ("home",)
+
+
+@home.get("/", ishtml=True)
+@home.csp("img-src $self; script-src $internal $wasm; style-src $internal; form-action $self; connect-src $self; manifest-src $self")
+def index() -> str:
+    """Home page"""
+
+    nonce: str = form_pow.proof_of_work_protect_session("home.index/text")
+
+    return flask.render_template(
+        "home/index.j2",
+        form=text_form.TextForm(),
+        texts=TextModel.query.all(),
+        pow_nonce=nonce,
+    )
+
+
+@home.post("/")
+@home.csp("img-src $self; script-src $internal; style-src $internal")
+def text() -> Response:
+    """Post some text"""
+
+    form: text_form.FlaskForm = text_form.TextForm()
+
+    if not form.validate_on_submit():  # type: ignore
+        flask.flash("Invalid form data/form", "error")
+        flask.abort(400)
+
+    if form.text.data is None:
+        flask.flash("Invalid form text", "error")
+        flask.abort(400)
+
+    if form.pow_solution.data is None or not form_pow.proof_of_work_verify_session(
+        "home.index/text",
+        form.pow_solution.data,
+    ):
+        flask.flash("Invalid Proof-of-Work solution", "error")
+        flask.abort(403)
+
+    db.session.add(TextModel(text=form.text.data))
+    db.session.commit()
+
+    flask.flash("Your text has been saved")
+    return flask.redirect(flask.url_for("home.index"))
+
+
+@home.get("/manifest.json")
+@home.csp("manifest-src $self; img-src $self")
+@home.cache("30d")
+def manifest() -> t.Any:
+    """Manifest file"""
+    return flask.jsonify(  # type: ignore
+        {
+            "$schema": "https://json.schemastore.org/web-manifest-combined.json",
+            "short_name": "Example page",
+            "name": "Example page",
+            "description": "This is an example description",
+            "icons": [
+                {
+                    "src": "/favicon.ico",
+                    "sizes": "256x256",
+                    "type": "image/vnd.microsoft.icon",
+                }
+            ],
+            "start_url": ".",
+            "display": "standalone",
+            "theme_color": "#fbfbfb",
+            "background_color": "#121212",
+        }
+    )
+
+
+@home.get("/favicon.ico")
+@home.csp("img-src $self")
+@home.cache("30d")
+def favicon() -> Response:
+    """Website icon"""
+    return flask.send_from_directory("static", "favicon.ico")