def enter(self, dummy):
""" Implementation of State virtual. """
#require_state(from_state, QUIESCENT)
#print "REQUEST_URI:"
#print self.parent.ctx['REQUEST_URI']
request_uri = self.parent.ctx['REQUEST_URI']
if (is_usk(request_uri)
and self.parent.params.get('AGGRESSIVE_SEARCH', False)):
request_uri = get_negative_usk(request_uri)
if (is_usk(request_uri) and self.parent.params['NO_SEARCH']):
request_uris = make_frozen_uris(request_uri, False)
self.parent.ctx.ui_.status("Request URI index searching " +
"disabled.\n")
else:
request_uris = make_search_uris(request_uri)
for uri in request_uris:
#[uri, tries, is_insert, raw_data, mime_type, last_msg]
if self.parent.params.get('DUMP_URIS', False):
self.parent.ctx.ui_.status("REQUEST URI: %s\n" % uri)
self.queue([uri, 0, False, None, None, None])
self.required_successes = 1 #len(self.results) # Hmmm fix, but how
# So we don't implictly favor one by requesting it first.
random.shuffle(self.current_candidates)
def enter(self, dummy):
""" Implementation of State virtual. """
#require_state(from_state, QUIESCENT)
#print "REQUEST_URI:"
#print self.parent.ctx['REQUEST_URI']
request_uri = self.parent.ctx['REQUEST_URI']
if (is_usk(request_uri) and
self.parent.params.get('AGGRESSIVE_SEARCH', False)):
request_uri = get_negative_usk(request_uri)
if (is_usk(request_uri) and self.parent.params['NO_SEARCH']):
request_uris = make_frozen_uris(request_uri, False)
self.parent.ctx.ui_.status("Request URI index searching "
+ "disabled.\n")
else:
request_uris = make_search_uris(request_uri)
for uri in request_uris:
#[uri, tries, is_insert, raw_data, mime_type, last_msg]
if self.parent.params.get('DUMP_URIS', False):
self.parent.ctx.ui_.status("REQUEST URI: %s\n" % uri)
self.queue([uri, 0, False, None, None, None])
self.required_successes = 1 #len(self.results) # Hmmm fix, but how
# So we don't implictly favor one by requesting it first.
random.shuffle(self.current_candidates)
def do_key_setup(ui_, update_sm, params, stored_cfg):
""" INTERNAL: Handle inverting/updating keys before running a command."""
insert_uri = params.get('INSERT_URI')
if not insert_uri is None and insert_uri.startswith('USK@/'):
insert_uri = ('USK'
+ stored_cfg.defaults['DEFAULT_PRIVATE_KEY'][3:]
+ insert_uri[5:])
ui_.status("Filled in the insert URI using the default private key.\n")
if insert_uri is None or not (is_usk(insert_uri) or is_ssk(insert_uri)):
return (params.get('REQUEST_URI'), False)
update_sm.start_inverting(insert_uri)
run_until_quiescent(update_sm, params['POLL_SECS'], False)
if update_sm.get_state(QUIESCENT).prev_state != INVERTING_URI:
raise util.Abort("Couldn't invert private key:\n%s" % insert_uri)
inverted_uri = update_sm.get_state(INVERTING_URI).get_request_uri()
params['INVERTED_INSERT_URI'] = inverted_uri
if is_usk(insert_uri):
# Determine the highest known index for the insert uri.
max_index = max(stored_cfg.get_index(inverted_uri),
get_version(insert_uri))
# Update the insert uri to the latest known version.
params['INSERT_URI'] = get_usk_for_usk_version(insert_uri,
max_index)
# Update the inverted insert URI to the latest known version.
params['INVERTED_INSERT_URI'] = get_usk_for_usk_version(
inverted_uri,
max_index)
# Update the index of the request uri using the stored config.
request_uri = params.get('REQUEST_URI')
if not request_uri is None and is_usk(request_uri):
assert not params['NO_SEARCH'] or not request_uri is None
if not params['NO_SEARCH']:
max_index = max(stored_cfg.get_index(request_uri),
get_version(request_uri))
request_uri = get_usk_for_usk_version(request_uri, max_index)
if (params['NO_SEARCH'] and
# Force the insert URI down to the version in the request URI.
usks_equal(request_uri, params['INVERTED_INSERT_URI'])):
params['INVERTED_INSERT_URI'] = request_uri
params['INSERT_URI'] = get_usk_for_usk_version(
insert_uri,
get_version(request_uri))
# Skip key inversion if we already inverted the insert_uri.
is_keypair = False
if (request_uri is None and
not params.get('INVERTED_INSERT_URI') is None):
request_uri = params['INVERTED_INSERT_URI']
is_keypair = True
return (request_uri, is_keypair)
def do_key_setup(ui_, update_sm, params, stored_cfg):
""" INTERNAL: Handle inverting/updating keys before running a command."""
insert_uri = params.get('INSERT_URI')
if not insert_uri is None and insert_uri.startswith('USK@/'):
insert_uri = ('USK' + stored_cfg.defaults['DEFAULT_PRIVATE_KEY'][3:] +
insert_uri[5:])
ui_.status("Filled in the insert URI using the default private key.\n")
if insert_uri is None or not (is_usk(insert_uri) or is_ssk(insert_uri)):
return (params.get('REQUEST_URI'), False)
update_sm.start_inverting(insert_uri)
run_until_quiescent(update_sm, params['POLL_SECS'], False)
if update_sm.get_state(QUIESCENT).prev_state != INVERTING_URI:
raise util.Abort("Couldn't invert private key:\n%s" % insert_uri)
inverted_uri = update_sm.get_state(INVERTING_URI).get_request_uri()
params['INVERTED_INSERT_URI'] = inverted_uri
if is_usk(insert_uri):
# Determine the highest known index for the insert uri.
max_index = max(stored_cfg.get_index(inverted_uri),
get_version(insert_uri))
# Update the insert uri to the latest known version.
params['INSERT_URI'] = get_usk_for_usk_version(insert_uri, max_index)
# Update the inverted insert URI to the latest known version.
params['INVERTED_INSERT_URI'] = get_usk_for_usk_version(
inverted_uri, max_index)
# Update the index of the request uri using the stored config.
request_uri = params.get('REQUEST_URI')
if not request_uri is None and is_usk(request_uri):
assert not params['NO_SEARCH'] or not request_uri is None
if not params['NO_SEARCH']:
max_index = max(stored_cfg.get_index(request_uri),
get_version(request_uri))
request_uri = get_usk_for_usk_version(request_uri, max_index)
if (params['NO_SEARCH'] and
# Force the insert URI down to the version in the request URI.
usks_equal(request_uri, params['INVERTED_INSERT_URI'])):
params['INVERTED_INSERT_URI'] = request_uri
params['INSERT_URI'] = get_usk_for_usk_version(
insert_uri, get_version(request_uri))
# Skip key inversion if we already inverted the insert_uri.
is_keypair = False
if (request_uri is None and not params.get('INVERTED_INSERT_URI') is None):
request_uri = params['INVERTED_INSERT_URI']
is_keypair = True
return (request_uri, is_keypair)
def next_runnable(self):
""" Implementation of RequestQueueState virtual. """
if self.queued:
return None
self.queued = True
uri = self.insert_uri
if is_usk(uri):
# Hack to keep freenet from doing a USK search.
uri = get_ssk_for_usk_version(uri, 0)
request = StatefulRequest(self.parent)
request.in_params.definition = GET_REQUEST_URI_DEF
request.in_params.fcp_params = {
'URI': uri,
'MaxRetries': 1,
'PriorityClass': 1,
'UploadFrom': 'direct',
'GetCHKOnly': True
}
request.in_params.send_data = '@' * 9
request.in_params.fcp_params['DataLength'] = (len(
request.in_params.send_data))
request.tag = 'only_invert' # Hmmmm...
self.parent.ctx.set_cancel_time(request)
return request
def start_inverting(self, insert_uri):
""" Start inverting a Freenet URI into it's analogous
request URI. """
assert is_usk(insert_uri) or is_ssk(insert_uri)
self.require_state(QUIESCENT)
self.reset()
self.get_state(INVERTING_URI).insert_uri = insert_uri
self.transition(INVERTING_URI)
def start_inverting(self, insert_uri):
""" Start inverting a Freenet URI into it's analogous
request URI. """
assert is_usk(insert_uri) or is_ssk(insert_uri)
self.require_state(QUIESCENT)
self.reset()
self.get_state(INVERTING_URI).insert_uri = insert_uri
self.transition(INVERTING_URI)
def execute_reinsert(ui_, repo, params, stored_cfg):
""" Run the reinsert command. """
update_sm = None
try:
update_sm = setup(ui_, repo, params, stored_cfg)
request_uri, is_keypair = do_key_setup(ui_, update_sm,
params, stored_cfg)
params['REQUEST_URI'] = request_uri
if not params['INSERT_URI'] is None:
if (is_usk(params['INSERT_URI']) and
(not is_usk(params['REQUEST_URI'])) or
(not usks_equal(params['REQUEST_URI'],
params['INVERTED_INSERT_URI']))):
raise util.Abort("Request URI doesn't match insert URI.")
ui_.debug("%sInsert URI:\n%s\n" % (is_redundant(params[
'INSERT_URI']),
params['INSERT_URI']))
ui_.status("%sRequest URI:\n%s\n" % (is_redundant(params[
'REQUEST_URI']),
params['REQUEST_URI']))
ui_.status(LEVEL_MSGS[params['REINSERT_LEVEL']] + '\n')
update_sm.start_reinserting(params['REQUEST_URI'],
params['INSERT_URI'],
is_keypair,
params['REINSERT_LEVEL'])
run_until_quiescent(update_sm, params['POLL_SECS'])
if update_sm.get_state(QUIESCENT).arrived_from(((FINISHING,))):
ui_.status("Reinsert finished.\n")
else:
ui_.status("Reinsert failed.\n")
# Don't need to update the config.
finally:
cleanup(update_sm)
def leave(self, to_state):
""" Override to update REQUEST_URI in the parent's context. """
InsertingUri.leave(self, to_state)
if to_state.name != self.success_state:
return
if self.parent.ctx['INSERT_URI'] is None:
# Assert reinserting???
return # i.e. for reinserting.
if not (is_usk(self.parent.ctx['INSERT_URI']) and
is_usk(self.parent.ctx['REQUEST_URI'])):
return
if (get_version(self.parent.ctx['INSERT_URI']) >
get_version(self.parent.ctx['REQUEST_URI'])):
version = get_version(self.parent.ctx['INSERT_URI'])
self.parent.ctx['REQUEST_URI'] = (
get_usk_for_usk_version(self.parent.ctx['REQUEST_URI'],
version))
def leave(self, to_state):
""" Implementation of State virtual. """
if to_state.name == self.success_state:
# Hmmm... what about chks?
# Update the index in the insert_uri on success
if (should_increment(self)
and is_usk(self.parent.ctx['INSERT_URI'])):
version = get_version(self.parent.ctx['INSERT_URI']) + 1
self.parent.ctx['INSERT_URI'] = (get_usk_for_usk_version(
self.parent.ctx['INSERT_URI'], version))
if self.parent.params.get('DUMP_URIS', False):
self.parent.ctx.ui_.status(
("INSERT UPDATED INSERT " + "URI:\n%s\n") %
self.parent.ctx['INSERT_URI'])
def execute_reinsert(ui_, repo, params, stored_cfg):
""" Run the reinsert command. """
update_sm = None
try:
update_sm = setup(ui_, repo, params, stored_cfg)
request_uri, is_keypair = do_key_setup(ui_, update_sm, params,
stored_cfg)
params['REQUEST_URI'] = request_uri
if not params['INSERT_URI'] is None:
if (is_usk(params['INSERT_URI']) and
(not is_usk(params['REQUEST_URI'])) or (not usks_equal(
params['REQUEST_URI'], params['INVERTED_INSERT_URI']))):
raise util.Abort("Request URI doesn't match insert URI.")
ui_.status(
"%sInsert URI:\n%s\n" %
(is_redundant(params['INSERT_URI']), params['INSERT_URI']))
ui_.status(
"%sRequest URI:\n%s\n" %
(is_redundant(params['REQUEST_URI']), params['REQUEST_URI']))
ui_.status(LEVEL_MSGS[params['REINSERT_LEVEL']] + '\n')
update_sm.start_reinserting(params['REQUEST_URI'],
params['INSERT_URI'], is_keypair,
params['REINSERT_LEVEL'])
run_until_quiescent(update_sm, params['POLL_SECS'])
if update_sm.get_state(QUIESCENT).arrived_from(((FINISHING, ))):
ui_.status("Reinsert finished.\n")
else:
ui_.status("Reinsert failed.\n")
# Don't need to update the config.
finally:
cleanup(update_sm)
def leave(self, to_state):
""" Implementation of State virtual. """
if to_state.name == self.success_state:
# Hmmm... what about chks?
# Update the index in the insert_uri on success
if (should_increment(self) and
is_usk(self.parent.ctx['INSERT_URI'])):
version = get_version(self.parent.ctx['INSERT_URI']) + 1
self.parent.ctx['INSERT_URI'] = (
get_usk_for_usk_version(self.parent.ctx['INSERT_URI'],
version))
if self.parent.params.get('DUMP_URIS', False):
self.parent.ctx.ui_.status(("INSERT UPDATED INSERT "
+ "URI:\n%s\n")
% self.parent.ctx['INSERT_URI'])
def leave(self, to_state):
""" Implementation of State virtual. """
if to_state.name == self.success_state:
self.parent.ctx['REQUEST_URI'] = self.get_latest_uri()
if is_usk(self.parent.ctx['REQUEST_URI']):
self.parent.ctx.ui_.status(
"Current USK version: %i\n" %
get_version(self.parent.ctx['REQUEST_URI']))
if (self.parent.ctx['IS_KEYPAIR']
and is_usk(self.parent.ctx['REQUEST_URI'])
and # lose usk checks?
is_usk(self.parent.ctx['INSERT_URI'])):
version = get_version(self.parent.ctx['REQUEST_URI'])
self.parent.ctx['INSERT_URI'] = (get_usk_for_usk_version(
self.parent.ctx['INSERT_URI'], version))
#print "SEARCH UPDATED INSERT URI: ", \
# self.parent.ctx['INSERT_URI']
# Allow pending requests to run to completion.
self.parent.ctx.orphan_requests(self)
if self.parent.params.get('DUMP_TOP_KEY', False):
self.topkey_funcs.dump_top_key_tuple(
self.get_top_key_tuple(), self.parent.ctx.ui_.status)
def leave(self, to_state):
""" Implementation of State virtual. """
if to_state.name == self.success_state:
self.parent.ctx['REQUEST_URI'] = self.get_latest_uri()
if is_usk(self.parent.ctx['REQUEST_URI']):
self.parent.ctx.ui_.status("Current USK version: %i\n" %
get_version(self.parent
.ctx['REQUEST_URI']))
if (self.parent.ctx['IS_KEYPAIR'] and
is_usk(self.parent.ctx['REQUEST_URI']) and # lose usk checks?
is_usk(self.parent.ctx['INSERT_URI'])):
version = get_version(self.parent.ctx['REQUEST_URI'])
self.parent.ctx['INSERT_URI'] = (
get_usk_for_usk_version(self.parent.ctx['INSERT_URI'],
version))
#print "SEARCH UPDATED INSERT URI: ", \
# self.parent.ctx['INSERT_URI']
# Allow pending requests to run to completion.
self.parent.ctx.orphan_requests(self)
if self.parent.params.get('DUMP_TOP_KEY', False):
self.topkey_funcs.dump_top_key_tuple(self.get_top_key_tuple(),
self.parent.ctx.ui_.status)
def arc_handle_updating_config(update_sm,
params,
stored_cfg,
is_pulling=False):
""" INTERNAL: Write updates into the config file IFF the previous
command succeeded. """
base_dir = params['ARCHIVE_CACHE_DIR']
if not is_pulling:
if not update_sm.get_state(QUIESCENT).arrived_from(((FINISHING, ))):
return
if (params['INSERT_URI'] is None or # <- re-insert w/o insert uri
not is_usk_file(params['INSERT_URI'])):
return
inverted_uri = params['INVERTED_INSERT_URI']
# Cache the request_uri - insert_uri mapping.
stored_cfg.set_insert_uri(inverted_uri, update_sm.ctx['INSERT_URI'])
# Cache the updated index for the insert.
version = get_version(update_sm.ctx['INSERT_URI'])
stored_cfg.update_index(inverted_uri, version)
stored_cfg.update_dir(base_dir, inverted_uri)
# Hmmm... if we wanted to be clever we could update the request
# uri too when it doesn't match the insert uri. Ok for now.
# Only for usks and only on success.
#print "UPDATED STORED CONFIG(0)"
Config.to_file(stored_cfg)
else:
# Only finishing required. same. REDFLAG: look at this again
if not update_sm.get_state(QUIESCENT).arrived_from((FINISHING, )):
return
if not is_usk(params['REQUEST_URI']):
return
state = update_sm.get_state(ARC_REQUESTING_URI)
updated_uri = state.get_latest_uri()
version = get_version(updated_uri)
stored_cfg.update_index(updated_uri, version)
stored_cfg.update_dir(base_dir, updated_uri)
#print "UPDATED STORED CONFIG(1)"
Config.to_file(stored_cfg)
def check_uri(ui_, uri):
""" INTERNAL: Abort if uri is not supported. """
if uri is None:
return
if is_usk(uri):
if not is_usk_file(uri):
ui_.status("Only file USKs are allowed." +
"\nMake sure the URI ends with '/<number>' " +
"with no trailing '/'.\n")
raise util.Abort("Non-file USK %s\n" % uri)
# Just fix it instead of doing B&H?
if is_negative_usk(uri):
ui_.status("Negative USK index values are not allowed." +
"\nUse --aggressive instead. \n")
raise util.Abort("Negative USK %s\n" % uri)
def check_uri(ui_, uri):
""" INTERNAL: Abort if uri is not supported. """
if uri is None:
return
if is_usk(uri):
if not is_usk_file(uri):
ui_.status("Only file USKs are allowed."
+ "\nMake sure the URI ends with '/<number>' "
+ "with no trailing '/'.\n")
raise util.Abort("Non-file USK %s\n" % uri)
# Just fix it instead of doing B&H?
if is_negative_usk(uri):
ui_.status("Negative USK index values are not allowed."
+ "\nUse --aggressive instead. \n")
raise util.Abort("Negative USK %s\n" % uri)
def arc_handle_updating_config(update_sm, params, stored_cfg,
is_pulling=False):
""" INTERNAL: Write updates into the config file IFF the previous
command succeeded. """
base_dir = params['ARCHIVE_CACHE_DIR']
if not is_pulling:
if not update_sm.get_state(QUIESCENT).arrived_from(((FINISHING,))):
return
if (params['INSERT_URI'] is None or # <- re-insert w/o insert uri
not is_usk_file(params['INSERT_URI'])):
return
inverted_uri = params['INVERTED_INSERT_URI']
# Cache the request_uri - insert_uri mapping.
stored_cfg.set_insert_uri(inverted_uri, update_sm.ctx['INSERT_URI'])
# Cache the updated index for the insert.
version = get_version(update_sm.ctx['INSERT_URI'])
stored_cfg.update_index(inverted_uri, version)
stored_cfg.update_dir(base_dir, inverted_uri)
# Hmmm... if we wanted to be clever we could update the request
# uri too when it doesn't match the insert uri. Ok for now.
# Only for usks and only on success.
#print "UPDATED STORED CONFIG(0)"
Config.to_file(stored_cfg)
else:
# Only finishing required. same. REDFLAG: look at this again
if not update_sm.get_state(QUIESCENT).arrived_from((FINISHING,)):
return
if not is_usk(params['REQUEST_URI']):
return
state = update_sm.get_state(ARC_REQUESTING_URI)
updated_uri = state.get_latest_uri()
version = get_version(updated_uri)
stored_cfg.update_index(updated_uri, version)
stored_cfg.update_dir(base_dir, updated_uri)
#print "UPDATED STORED CONFIG(1)"
Config.to_file(stored_cfg)
def get_latest_uri(self):
""" Returns the URI with the version part update if the URI is a USK."""
if (is_usk(self.parent.ctx['REQUEST_URI'])
and self.parent.params['NO_SEARCH']):
return self.parent.ctx['REQUEST_URI']
max_version = None
for candidate in self.ordered:
result = candidate[5]
if result is None or result[0] != 'AllData':
continue
uri = result[1]['URI']
if not is_usk_file(uri):
return uri
max_version = max(max_version, abs(get_version(uri)))
break
assert not max_version is None
# The .R1 URI is queued first.
assert (len(self.ordered) < 2 or self.ordered[0][0].find('.R1') != -1)
return get_usk_for_usk_version(self.ordered[0][0], max_version)
def get_latest_uri(self):
""" Returns the URI with the version part update if the URI is a USK."""
if (is_usk(self.parent.ctx['REQUEST_URI']) and
self.parent.params['NO_SEARCH']):
return self.parent.ctx['REQUEST_URI']
max_version = None
for candidate in self.ordered:
result = candidate[5]
if result is None or result[0] != 'AllData':
continue
uri = result[1]['URI']
if not is_usk_file(uri):
return uri
max_version = max(max_version, abs(get_version(uri)))
break
assert not max_version is None
# The .R1 URI is queued first.
assert (len(self.ordered) < 2 or
self.ordered[0][0].find('.R1') != -1)
return get_usk_for_usk_version(self.ordered[0][0],
max_version)
def monitor_callback(self, update_sm, client, msg):
""" FCP message status callback which writes to a ui. """
if self.verbosity < 2:
return
#prefix = update_sm.current_state.name
prefix = ''
if self.verbosity > 2:
prefix = client.request_id()[:10] + ':'
if hasattr(update_sm.current_state, 'pending') and self.verbosity > 1:
prefix = ("{%i}:" % len(update_sm.runner.running)) + prefix
if msg[0] == 'SimpleProgress':
text = str(parse_progress(msg))
elif msg[0] == 'URIGenerated':
return # shows up twice
#elif msg[0] == 'PutSuccessful':
# text = 'PutSuccessful:' + msg[1]['URI']
elif msg[0] == 'ProtocolError':
text = 'ProtocolError:' + str(msg)
elif msg[0] == 'AllData':
# Don't try to print raw data.
text = 'AllData: length=%s' % msg[1].get('DataLength', '???')
elif msg[0].find('Failed') != -1:
code = get_code(msg) or -1
redirect = ''
if (code == 27 and 'RedirectURI' in msg[1]
and is_usk(msg[1]['RedirectURI'])):
redirect = ", redirected to version: %i" % \
get_version(msg[1]['RedirectURI'])
text = "%s: code=%i%s" % (msg[0], code, redirect)
else:
text = msg[0]
self.ui_.status("%s%s:%s\n" % (prefix, str(client.tag), text))
def monitor_callback(self, update_sm, client, msg):
""" FCP message status callback which writes to a ui. """
if self.verbosity < 2:
return
#prefix = update_sm.current_state.name
prefix = ''
if self.verbosity > 2:
prefix = client.request_id()[:10] + ':'
if hasattr(update_sm.current_state, 'pending') and self.verbosity > 1:
prefix = ("{%i}:" % len(update_sm.runner.running)) + prefix
if msg[0] == 'SimpleProgress':
text = str(parse_progress(msg))
elif msg[0] == 'URIGenerated':
return # shows up twice
#elif msg[0] == 'PutSuccessful':
# text = 'PutSuccessful:' + msg[1]['URI']
elif msg[0] == 'ProtocolError':
text = 'ProtocolError:' + str(msg)
elif msg[0] == 'AllData':
# Don't try to print raw data.
text = 'AllData: length=%s' % msg[1].get('DataLength', '???')
elif msg[0].find('Failed') != -1:
code = get_code(msg) or -1
redirect = ''
if (code == 27 and 'RedirectURI' in msg[1]
and is_usk(msg[1]['RedirectURI'])):
redirect = ", redirected to version: %i" % \
get_version(msg[1]['RedirectURI'])
text = "%s: code=%i%s" % (msg[0], code, redirect)
else:
text = msg[0]
self.ui_.status("%s%s:%s\n" % (prefix, str(client.tag), text))
def next_runnable(self):
""" Implementation of RequestQueueState virtual. """
if self.queued:
return None
self.queued = True
uri = self.insert_uri
if is_usk(uri):
# Hack to keep freenet from doing a USK search.
uri = get_ssk_for_usk_version(uri, 0)
request = StatefulRequest(self.parent)
request.in_params.definition = GET_REQUEST_URI_DEF
request.in_params.fcp_params = {'URI': uri,
'MaxRetries': 1,
'PriorityClass':1,
'UploadFrom':'direct',
'GetCHKOnly':True}
request.in_params.send_data = '@' * 9
request.in_params.fcp_params['DataLength'] = (
len(request.in_params.send_data))
request.tag = 'only_invert' # Hmmmm...
self.parent.ctx.set_cancel_time(request)
return request