def _add_memento_links(self, url, full_prefix, memento_dt, memento_ts,
status_headers, is_timegate, is_proxy, coll=None):
# memento url + header
if not memento_dt and memento_ts:
memento_dt = timestamp_to_http_date(memento_ts)
if memento_dt:
status_headers.headers.append(('Memento-Datetime', memento_dt))
if is_proxy:
memento_url = url
else:
memento_url = full_prefix + memento_ts + self.replay_mod
memento_url += '/' + url
else:
memento_url = None
timegate_url, timemap_url = self._get_timegate_timemap(url, full_prefix)
link = []
if not is_proxy:
link.append(MementoUtils.make_link(url, 'original'))
link.append(MementoUtils.make_link(timegate_url, 'timegate'))
link.append(MementoUtils.make_link(timemap_url, 'timemap'))
if memento_dt:
link.append(MementoUtils.make_memento_link(memento_url, 'memento', memento_dt, coll))
link_str = ', '.join(link)
status_headers.headers.append(('Link', link_str))
if is_timegate:
status_headers.headers.append(('Vary', 'accept-datetime'))
def _add_memento_links(self,
url,
full_prefix,
memento_dt,
memento_ts,
status_headers,
is_timegate,
is_proxy,
coll=None,
pref_applied=None,
mod=None,
is_memento=True):
"""Adds the memento link headers to supplied StatusAndHeaders instance
:param str url: The URI-R being rewritten
:param str full_prefix: The replay prefix
:param str|None memento_dt: The memento datetime for the URI-R being rewritten
:param str memento_ts: The memento timestamp
:param warcio.StatusAndHeaders status_headers:
:param bool is_timegate: Are we returning a response for a timegate
:param bool is_proxy: Are we operating in proxy mode
:param str|None coll: The collection the URI-R is from
:param str|None pref_applied:
:param str|None mod: The rewrite modifier
:param bool is_memento:
:rtype: None
"""
replay_mod = mod or self.replay_mod
# memento url + header
if not memento_dt and memento_ts:
memento_dt = timestamp_to_http_date(memento_ts)
if memento_dt:
if is_memento:
status_headers.headers.append(('Memento-Datetime', memento_dt))
if is_proxy:
memento_url = url
else:
memento_url = full_prefix + memento_ts + replay_mod
memento_url += '/' + url
else:
memento_url = None
timegate_url, timemap_url = self._get_timegate_timemap(
url, full_prefix, mod)
link = []
if not is_proxy:
link.append(MementoUtils.make_link(url, 'original'))
link.append(MementoUtils.make_link(timegate_url, 'timegate'))
link.append(MementoUtils.make_link(timemap_url, 'timemap'))
if memento_dt:
link.append(
MementoUtils.make_memento_link(memento_url, 'memento',
memento_dt, coll))
link_str = ', '.join(link)
status_headers.headers.append(('Link', link_str))
vary = ''
if is_timegate:
vary = 'accept-datetime'
if pref_applied:
vary = 'Prefer' if not vary else vary + ', Prefer'
status_headers.headers.append(('Preference-Applied', pref_applied))
if vary:
status_headers.headers.append(('Vary', vary))