Weasy Renderer

compose/local/django/Dockerfile

@@ -13,7 +13,10 @@ RUN apk update \
   # Translations dependencies
   && apk add gettext \
   # https://docs.djangoproject.com/en/dev/ref/django-admin/#dbshell
-  && apk add postgresql-client
+  && apk add postgresql-client \
+  # https://weasyprint.readthedocs.io/en/latest/install.html
+  && apk add gcc musl-dev jpeg-dev zlib-dev libffi-dev cairo-dev pango-dev gdk-pixbuf-dev \
+  && apk add ttf-ubuntu-font-family
 
 # Requirements are installed here to ensure they will be cached.
 COPY ./requirements /requirements

compose/production/django/Dockerfile

@@ -10,7 +10,10 @@ RUN apk update \
   # Pillow dependencies
   && apk add jpeg-dev zlib-dev freetype-dev lcms2-dev openjpeg-dev tiff-dev tk-dev tcl-dev \
   # CFFI dependencies
-  && apk add libffi-dev py-cffi
+  && apk add libffi-dev py-cffi \
+  # https://weasyprint.readthedocs.io/en/latest/install.html
+  && apk add gcc musl-dev jpeg-dev zlib-dev libffi-dev cairo-dev pango-dev gdk-pixbuf-dev \
+  && apk add ttf-ubuntu-font-family
 
 RUN addgroup -S django \
     && adduser -S -G django django

requirements/base.txt

@@ -20,3 +20,5 @@ djangorestframework==3.10.2  # https://github.com/encode/django-rest-framework
 coreapi==2.3.3  # https://github.com/core-api/python-client
 
 django-markdownx==2.0.28
+WeasyPrint==48
+django-weasyprint==0.5.4

schickmacher/renderer/urls.py

@@ -1,8 +1,9 @@
 from django.urls import path
 
-from schickmacher.renderer.views import form_view
+from schickmacher.renderer.views import form_view, RenderView
 
 app_name = 'renderer'
 urlpatterns = [
-    path("", view=form_view, name="form")
+    path("", view=form_view, name="form"),
+    path("render", view=RenderView.as_view(), name="render")
 ]

schickmacher/renderer/views.py

@@ -1,5 +1,7 @@
 from django.core.handlers.wsgi import WSGIRequest
 from django.shortcuts import render
+from django.views.generic import FormView
+from django_weasyprint import WeasyTemplateView
 from markdownx.utils import markdownify
 
 from schickmacher.renderer.forms import RendererForm
@@ -18,3 +20,25 @@ def form_view(request: WSGIRequest):
         form = RendererForm()
     ctx = {"form": form}
     return render(request, 'renderer/render_form.html', ctx)
+
+
+class RenderView(WeasyTemplateView):
+    template_name = 'renderer/rendered.html'
+
+    def get_context_data(self, **kwargs):
+        form = RendererForm(self.request.POST)
+        if form.is_valid():
+            return {
+                'date': form.cleaned_data['date'],
+                'content': markdownify(form.cleaned_data['render_content']),
+                'title': form.cleaned_data['title']
+            }
+        else:
+            return {
+                'date': 'Error',
+                'content': 'Error',
+                'title': 'Error'
+            }
+
+    def post(self, request, *args, **kwargs):
+        return self.get(request, *args, **kwargs)

schickmacher/templates/renderer/render_form.html

@@ -8,7 +8,7 @@
 
 {% block content %}
   <h1>{% trans "Renderer" %}</h1>
-  <form class="form-horizontal" method="post" action="{% url 'renderer:form' %}">
+  <form class="form-horizontal" method="post" action="{% url 'renderer:render' %}">
       {% csrf_token %}
       {{ form|crispy }}
     <div class="control-group">