def feed(self, environ, request, uri):
conf = self.isso.conf.section("rss")
if not conf.get('base'):
raise NotFound
args = {
'uri': uri,
'order_by': 'id',
'asc': 0,
'limit': conf.getint('limit')
}
try:
args['limit'] = max(int(request.args.get('limit')), args['limit'])
except TypeError:
pass
except ValueError:
return BadRequest("limit should be integer")
comments = self.comments.fetch(**args)
base = conf.get('base').rstrip('/')
hostname = urlparse(base).netloc
# Let's build an Atom feed.
# RFC 4287: https://tools.ietf.org/html/rfc4287
# RFC 4685: https://tools.ietf.org/html/rfc4685 (threading extensions)
# For IDs: http://web.archive.org/web/20110514113830/http://diveintomark.org/archives/2004/05/28/howto-atom-id
feed = ET.Element('feed', {
'xmlns': 'http://www.w3.org/2005/Atom',
'xmlns:thr': 'http://purl.org/syndication/thread/1.0'
})
# For feed ID, we would use thread ID, but we may not have
# one. Therefore, we use the URI. We don't have a year
# either...
id = ET.SubElement(feed, 'id')
id.text = 'tag:{hostname},2018:/isso/thread{uri}'.format(
hostname=hostname, uri=uri)
# For title, we don't have much either. Be pretty generic.
title = ET.SubElement(feed, 'title')
title.text = 'Comments for {hostname}{uri}'.format(
hostname=hostname, uri=uri)
comment0 = None
for comment in comments:
if comment0 is None:
comment0 = comment
entry = ET.SubElement(feed, 'entry')
# We don't use a real date in ID either to help with
# threading.
id = ET.SubElement(entry, 'id')
id.text = 'tag:{hostname},2018:/isso/{tid}/{id}'.format(
hostname=hostname,
tid=comment['tid'],
id=comment['id'])
title = ET.SubElement(entry, 'title')
title.text = 'Comment #{}'.format(comment['id'])
updated = ET.SubElement(entry, 'updated')
updated.text = '{}Z'.format(datetime.fromtimestamp(
comment['modified'] or comment['created']).isoformat())
author = ET.SubElement(entry, 'author')
name = ET.SubElement(author, 'name')
name.text = comment['author']
ET.SubElement(entry, 'link', {
'href': '{base}{uri}#isso-{id}'.format(
base=base,
uri=uri, id=comment['id'])
})
content = ET.SubElement(entry, 'content', {
'type': 'html',
})
content.text = self.isso.render(comment['text'])
if comment['parent']:
ET.SubElement(entry, 'thr:in-reply-to', {
'ref': 'tag:{hostname},2018:/isso/{tid}/{id}'.format(
hostname=hostname,
tid=comment['tid'],
id=comment['parent']),
'href': '{base}{uri}#isso-{id}'.format(
base=base,
uri=uri, id=comment['parent'])
})
# Updated is mandatory. If we have comments, we use the date
# of last modification of the first one (which is the last
# one). Otherwise, we use a fixed date.
updated = ET.Element('updated')
if comment0 is None:
updated.text = '1970-01-01T01:00:00Z'
else:
updated.text = datetime.fromtimestamp(
comment0['modified'] or comment0['created']).isoformat()
updated.text += 'Z'
feed.insert(0, updated)
output = StringIO()
ET.ElementTree(feed).write(output,
encoding='utf-8',
xml_declaration=True)
response = XML(output.getvalue(), 200)
# Add an etag/last-modified value for caching purpose
if comment0 is None:
response.set_etag('empty')
response.last_modified = 0
else:
response.set_etag('{tid}-{id}'.format(**comment0))
response.last_modified = comment0['modified'] or comment0['created']
return response.make_conditional(request)
def feed(self, environ, request, uri):
conf = self.isso.conf.section("rss")
if not conf.get('base'):
raise NotFound
args = {
'uri': uri,
'order_by': 'id',
'asc': 0,
'limit': conf.getint('limit')
}
try:
args['limit'] = max(int(request.args.get('limit')), args['limit'])
except TypeError:
pass
except ValueError:
return BadRequest("limit should be integer")
comments = self.comments.fetch(**args)
base = conf.get('base').rstrip('/')
hostname = urlparse(base).netloc
# Let's build an Atom feed.
# RFC 4287: https://tools.ietf.org/html/rfc4287
# RFC 4685: https://tools.ietf.org/html/rfc4685 (threading extensions)
# For IDs: http://web.archive.org/web/20110514113830/http://diveintomark.org/archives/2004/05/28/howto-atom-id
feed = ET.Element('feed', {
'xmlns': 'http://www.w3.org/2005/Atom',
'xmlns:thr': 'http://purl.org/syndication/thread/1.0'
})
# For feed ID, we would use thread ID, but we may not have
# one. Therefore, we use the URI. We don't have a year
# either...
id = ET.SubElement(feed, 'id')
id.text = 'tag:{hostname},2018:/isso/thread{uri}'.format(
hostname=hostname, uri=uri)
# For title, we don't have much either. Be pretty generic.
title = ET.SubElement(feed, 'title')
title.text = 'Comments for {hostname}{uri}'.format(
hostname=hostname, uri=uri)
comment0 = None
for comment in comments:
if comment0 is None:
comment0 = comment
entry = ET.SubElement(feed, 'entry')
# We don't use a real date in ID either to help with
# threading.
id = ET.SubElement(entry, 'id')
id.text = 'tag:{hostname},2018:/isso/{tid}/{id}'.format(
hostname=hostname,
tid=comment['tid'],
id=comment['id'])
title = ET.SubElement(entry, 'title')
title.text = 'Comment #{}'.format(comment['id'])
updated = ET.SubElement(entry, 'updated')
updated.text = '{}Z'.format(datetime.fromtimestamp(
comment['modified'] or comment['created']).isoformat())
author = ET.SubElement(entry, 'author')
name = ET.SubElement(author, 'name')
name.text = comment['author']
ET.SubElement(entry, 'link', {
'href': '{base}{uri}#isso-{id}'.format(
base=base,
uri=uri, id=comment['id'])
})
content = ET.SubElement(entry, 'content', {
'type': 'html',
})
content.text = self.isso.render(comment['text'])
if comment['parent']:
ET.SubElement(entry, 'thr:in-reply-to', {
'ref': 'tag:{hostname},2018:/isso/{tid}/{id}'.format(
hostname=hostname,
tid=comment['tid'],
id=comment['parent']),
'href': '{base}{uri}#isso-{id}'.format(
base=base,
uri=uri, id=comment['parent'])
})
# Updated is mandatory. If we have comments, we use the date
# of last modification of the first one (which is the last
# one). Otherwise, we use a fixed date.
updated = ET.Element('updated')
if comment0 is None:
updated.text = '1970-01-01T01:00:00Z'
else:
updated.text = datetime.fromtimestamp(
comment0['modified'] or comment0['created']).isoformat()
updated.text += 'Z'
feed.insert(0, updated)
output = StringIO()
ET.ElementTree(feed).write(output,
encoding='utf-8',
xml_declaration=True)
response = XML(output.getvalue(), 200)
# Add an etag/last-modified value for caching purpose
if comment0 is None:
response.set_etag('empty')
response.last_modified = 0
else:
response.set_etag('{tid}-{id}'.format(**comment0))
response.last_modified = comment0['modified'] or comment0['created']
return response.make_conditional(request)
