async def report(self, environ, request_body, resources_by_hrefs,
properties, href, resource, depth):
old_token = None
sync_level = None
limit = None
requested = None
for el in request_body:
if el.tag == '{DAV:}sync-token':
old_token = el.text
elif el.tag == '{DAV:}sync-level':
sync_level = el.text
elif el.tag == '{DAV:}limit':
limit = el.text
elif el.tag == '{DAV:}prop':
requested = list(el)
else:
raise webdav.BadRequestError('unknown tag %s' % el.tag)
# TODO(jelmer): Implement sync_level infinite
if sync_level not in ("1", ):
raise webdav.BadRequestError("sync level %r unsupported" %
sync_level)
new_token = resource.get_sync_token()
try:
diff_iter = resource.iter_differences_since(old_token, new_token)
except NotImplementedError:
yield webdav.Status(
href,
'403 Forbidden',
error=ET.Element('{DAV:}sync-traversal-supported'))
return
if limit is not None:
try:
[nresults_el] = list(limit)
except ValueError:
raise webdav.BadRequestError(
'Invalid number of subelements in limit')
try:
nresults = int(nresults_el.text)
except ValueError:
raise webdav.BadRequestError('nresults not a number')
diff_iter = itertools.islice(diff_iter, nresults)
for (name, old_resource, new_resource) in diff_iter:
subhref = urllib.parse.urljoin(webdav.ensure_trailing_slash(href),
name)
if new_resource is None:
yield webdav.Status(subhref, status='404 Not Found')
else:
propstat = []
for prop in requested:
if old_resource is not None:
old_propstat = webdav.get_property_from_element(
href, old_resource, properties, environ, prop)
else:
old_propstat = None
new_propstat = webdav.get_property_from_element(
href, new_resource, properties, environ, prop)
if old_propstat != new_propstat:
propstat.append(new_propstat)
yield webdav.Status(subhref, propstat=propstat)
yield SyncToken(new_token)
async def get_value(self, base_href, resource, el, environ):
for href in resource.get_calendar_home_set():
href = webdav.ensure_trailing_slash(href)
el.append(webdav.create_href(href, base_href))