From bbf8847cbb02286358213552a6e4dff3f156ef90 Mon Sep 17 00:00:00 2001
From: Étienne Loks <etienne.loks@iggdrasil.net>
Date: Wed, 25 Oct 2017 13:29:40 +0200
Subject: Switch from pisa to weasyprint

---
 ishtar_common/views.py | 39 +++++++++++++++++++++------------------
 1 file changed, 21 insertions(+), 18 deletions(-)

(limited to 'ishtar_common/views.py')

diff --git a/ishtar_common/views.py b/ishtar_common/views.py
index b8350c62a..8d475aff5 100644
--- a/ishtar_common/views.py
+++ b/ishtar_common/views.py
@@ -1,6 +1,6 @@
 #!/usr/bin/env python
 # -*- coding: utf-8 -*-
-# Copyright (C) 2010-2016  Étienne Loks  <etienne.loks_AT_peacefrogsDOTnet>
+# Copyright (C) 2010-2017  Étienne Loks  <etienne.loks_AT_peacefrogsDOTnet>
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU Affero General Public License as
@@ -21,13 +21,7 @@ from tidylib import tidy_document as tidy
 
 from copy import copy, deepcopy
 import csv
-import cStringIO as StringIO
 import datetime
-
-import reportlab
-reportlab.Version = "2.2"  # stupid hack for an old library...
-import ho.pisa as pisa
-
 import json
 import logging
 from markdown import markdown
@@ -35,6 +29,8 @@ import optparse
 import re
 from tempfile import NamedTemporaryFile
 import unicodedata
+from weasyprint import HTML, CSS
+from weasyprint.fonts import FontConfiguration
 
 from extra_views import ModelFormSetView
 
@@ -42,6 +38,7 @@ from django.conf import settings
 from django.contrib.auth import logout
 from django.contrib.auth.decorators import login_required
 from django.contrib.postgres.search import SearchQuery
+from django.contrib.staticfiles.templatetags.staticfiles import static
 from django.core.exceptions import ObjectDoesNotExist
 from django.core.urlresolvers import reverse, NoReverseMatch
 from django.db.models import Q, ImageField
@@ -1333,19 +1330,25 @@ def show_item(model, name, extra_dct=None):
         elif doc_type == 'pdf':
             tpl = loader.get_template('ishtar/sheet_%s_pdf.html' % name)
             context_instance['output'] = 'PDF'
-            content = tpl.render(context_instance, request)
-            result = StringIO.StringIO()
-            html = content.encode('utf-8')
-            html = html.replace("<table", "<pdf:nextpage/><table repeat='1'")
-            pdf = pisa.pisaDocument(StringIO.StringIO(html), result,
-                                    encoding='utf-8')
-            response = HttpResponse(result.getvalue(),
-                                    content_type='application/pdf')
+            html = tpl.render(context_instance, request)
+            font_config = FontConfiguration()
+            css = CSS(string='''
+            @font-face {
+                font-family: Gentium;
+                src: url(%s);
+            }
+            body{
+                font-family: Gentium
+            }
+            ''' % (static("gentium/GentiumPlus-R.ttf")))
+            css2 = CSS(filename=settings.STATIC_ROOT + '/media/style_basic.css')
+            pdf = HTML(string=html, base_url=request.build_absolute_uri()
+                       ).write_pdf(stylesheets=[css, css2],
+                                   font_config=font_config)
+            response = HttpResponse(pdf, content_type='application/pdf')
             response['Content-Disposition'] = 'attachment; filename=%s.pdf' % \
                                               filename
-            if not pdf.err:
-                return response
-            return HttpResponse(content, content_type="application/xhtml")
+            return response
         else:
             tpl = loader.get_template('ishtar/sheet_%s_window.html' % name)
             content = tpl.render(context_instance, request)
-- 
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