def note_to_html(note, author):
"""
Convert a note into a html string
"""
from lxml import etree
import os.path
# Extension function for XSL. Called twice per link,
# so we keep a little cache to save on lookups
link_cache = {}
def get_url_for_title(dummy, link_text):
link_text = unicode(link_text)
if link_text in link_cache:
return link_cache[link_text]
try:
note = Note.objects.get(author=author, title=link_text)
note_url = note.get_absolute_url()
link_cache[link_text] = note_url
return note_url
except ObjectDoesNotExist:
return None
ns = etree.FunctionNamespace("http://tomboy-online.org/stuff")
ns.prefix = "tomboyonline"
ns['get_url_for_title'] = get_url_for_title
style = etree.parse(
os.path.join(settings.PROJECT_ROOT, 'data/note2xhtml.xsl'))
transform = etree.XSLT(style)
template = CONTENT_TEMPLATES.get(note.content_version,
DEFAULT_CONTENT_TEMPLATE)
complete_xml = template.replace('%%%CONTENT%%%', note.content)
doc = etree.fromstring(complete_xml)
result = transform(doc)
body = str(result)
return body
def note_to_html(note, author):
"""
Convert a note into a html string
"""
from lxml import etree
import os.path
# Extension function for XSL. Called twice per link,
# so we keep a little cache to save on lookups
link_cache = {}
def get_url_for_title(dummy, link_text):
link_text = unicode(link_text)
if link_text in link_cache:
return link_cache[link_text]
try:
note = Note.objects.get(author=author, title=link_text)
note_url = note.get_absolute_url()
link_cache[link_text] = note_url
return note_url
except ObjectDoesNotExist:
return None
ns = etree.FunctionNamespace("http://tomboy-online.org/stuff")
ns.prefix = "tomboyonline"
ns['get_url_for_title'] = get_url_for_title
style = etree.parse(os.path.join(settings.PROJECT_ROOT,
'data/note2xhtml.xsl'))
transform = etree.XSLT(style)
template = CONTENT_TEMPLATES.get(note.content_version, DEFAULT_CONTENT_TEMPLATE)
complete_xml = template.replace('%%%CONTENT%%%', note.content)
doc = etree.fromstring(complete_xml)
result = transform(doc)
body = str(result)
return body
def note_detail(request, username, note_id, slug="", template_name="notes/note_detail.html"):
def clean_content(xml, author):
"""
Adds an id attribute to <link:internal> tags so that URLs can be
constructed by the XSLT.
"""
from xml.dom import minidom
doc = minidom.parseString(xml)
for link in doc.getElementsByTagName("link:internal"):
if len(link.childNodes) < 1:
continue
title = link.childNodes[0].nodeValue
try:
note = Note.objects.get(author=author, title=title)
except ObjectDoesNotExist:
continue
link.setAttribute("id", str(note.pk))
return doc.toxml()
author = get_object_or_404(User, username=username)
note = get_object_or_404(Note, pk=note_id, author=author)
if request.user != author and note.permissions == 0:
return HttpResponseForbidden()
if note.slug != slug:
return HttpResponseRedirect(note.get_absolute_url())
# break this out into a function
import libxslt
import libxml2
style, doc, result = None, None, None
try:
styledoc = libxml2.parseFile("data/note2xhtml.xsl")
style = libxslt.parseStylesheetDoc(styledoc)
template = CONTENT_TEMPLATES.get(note.content_version, DEFAULT_CONTENT_TEMPLATE)
complete_xml = template.replace("%%%CONTENT%%%", note.content.encode("UTF-8"))
doc = libxml2.parseDoc(clean_content(complete_xml, author).encode("UTF-8"))
result = style.applyStylesheet(
doc, {"base-user-url": "'%s'" % reverse("note_index", kwargs={"username": author.username})}
)
# libxml2 doesn't munge encodings, so forcibly decode from UTF-8
body = unicode(style.saveResultToString(result), "UTF-8")
finally:
if style != None:
style.freeStylesheet()
if doc != None:
doc.freeDoc()
if result != None:
result.freeDoc()
return render_to_response(
template_name,
{"title": note.title, "note": note, "body": body, "request": request, "author": author},
context_instance=RequestContext(request),
)
