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from __future__ import absolute_import, unicode_literals
from django.http import HttpResponseBadRequest
from django.conf import settings
from django.shortcuts import render_to_response
from django.template import TemplateDoesNotExist
from django.template.loader import find_template_loader
from django.utils.safestring import mark_safe
def template_source(request):
"""
Return the source of a template, syntax-highlighted by Pygments if
it's available.
"""
template_name = request.GET.get('template', None)
if template_name is None:
return HttpResponseBadRequest('"template" key is required')
loaders = []
for loader_name in settings.TEMPLATE_LOADERS:
loader = find_template_loader(loader_name)
if loader is not None:
loaders.append(loader)
for loader in loaders:
try:
source, display_name = loader.load_template_source(template_name)
break
except TemplateDoesNotExist:
source = "Template Does Not Exist: %s" % (template_name,)
try:
from pygments import highlight
from pygments.lexers import HtmlDjangoLexer
from pygments.formatters import HtmlFormatter
source = highlight(source, HtmlDjangoLexer(), HtmlFormatter())
source = mark_safe(source)
source.pygmentized = True
except ImportError:
pass
# Using render_to_response avoids running global context processors.
return render_to_response('debug_toolbar/panels/template_source.html', {
'source': source,
'template_name': template_name
})
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