def fetch_template(url):
m = template_url_re.search(url)
if m:
digest = m.groups()[0].upper()
matcher = template_cache.get(digest)
if not matcher:
try:
code, template = urlfetch(url)
except:
raise TemplateError('Cannot fetch template')
if code != 200:
raise TemplateError('Cannot fetch template')
matcher = compile_template(template)
calc_digest = hashlib.sha1(template).hexdigest().upper()
if digest and calc_digest != digest:
raise TemplateError('Template digest mismatch at URL %s' % url)
template_cache[calc_digest] = matcher
return matcher
def fetch(self):
try:
data = urlfetch(self.url)
except HTTPError, e:
current_app.logger.error("Error during fetching the document: %s" % e)
return None
