def parse_address(local_address, str):
check.check_is_af_inet_address(local_address) #=@R19
try:
match = re.match(r"\s*(.+)\s*:\s*([0-9]+)\s*$", str)
if match:
ret = (socket.gethostbyname(match.group(1)),
string.atoi(match.group(2)))
else:
match = re.match(r"\s*([0-9]+)\s*$", str)
if match:
ret = (local_address[0],
string.atoi(match.group(1)))
else:
ret = (socket.gethostbyname(string.strip(str)),
settings.default_ports[0])
check.check_is_af_inet_address(ret) #=@E9
# Proof: socket.gethostbyname returns a string, atoi returns an int,
# settings.default_ports is a non-empty list of integers.
# local_address is itself an af_inet_address (@R19), so its first
# element is a string suitable for an af_inet_address. local_address
# is deeply immutable from @E11.
return ret
except:
raise error.Error(_("Could not find peer.\n"+\
"Please give a valid IP address or machine name,\n"+\
"optionally followed by a colon and a port number"))
def acq_change_thread(ns, acq, address, call_id, node):
check.check_is_af_inet_address(address) #=@R29
try:
result, subthread = try_address(acq,address,node)
yield 'wait',subthread
if not result[0]:
return
except error.Error:
return
#acq.lock.acquire()
#acq.status = status
#acq.lock.release()
ns.acquaintance_status_changed(acq, 'connect')
def identity_test_thread(address, key, the_node, id_test_result):
#from node import Node
# Test identity
check.check_is_af_inet_address(address)
#check.check_isinstance(the_node, Node)
tester = utility.random_bytes(settings.name_bytes)
ticket, template, wait = the_node.call(address, ('identity test',tester))
if wait: yield 'call',(the_node,ticket)
try:
result = the_node.get_reply(ticket, template)
except error.Error,err:
print "error",err
id_test_result.append(0)
return
def handle(self, request, address,call_id):
check.check_matches(request, (types.StringType,)) #=@R34
check.check_is_af_inet_address(address) #=@R31
self.lock.acquire()
try:
if request[0] == 'chat look':
return (not self.quiet, self.activity)
if request[0] in ['chat message 2']:
unpacked = safe_pickle.loads(request[1])
# TODO check unpacked against template
# TODO don't unpack twice (here and in receive task)
sender = unpacked['from']
recipients = unpacked['to']
for recipient in recipients:
if recipient[0] == self.app.name_server.public_key_name:
break
if recipient[2][:1] == '#' and \
self.channels.is_listening_to(recipient[2]) and \
sender[0] != self.app.name_server.public_key_name:
break
else:
return None
if not self.repeated(address,call_id):
if self.quiet:
new_item = (request, address, time.time())
check.check_matches(new_item,
unread_message_list_item_tmpl)
# Proof: @R34,@R31, and not having modified request or
# address, and the relevant types being immutable
# (partly by @E11). time.time() returns float.
# Relevance: @R.I15.
self.unread_message_list.append(new_item)
self.set_prompt()
del new_item
else:
self.receive(request,address,self.quiet,time.time())
# Proof of @R33: @R31; deep immutability by @E11.
# Proof of @R35: time.time() returns float.
return (not self.quiet, self.activity)
finally:
self.lock.release()
def handle(self, request,address,call_id):
check.check_matches(request, (types.StringType,))
check.check_is_af_inet_address(address)
# Idempotence is a bugger
if request[0] == 'data cache store' or \
request[0] == 'data cache store multi':
self.lock.acquire()
try:
if self.cached_items.has_key(request[1]):
if self.cached_items[request[1]].call == (address,call_id):
return None
return Error('already storing')
if request[0] == 'data cache store':
names = [ request[2] ]
else:
names = request[2]
if len(names) > settings.max_cache_names:
return Error('too many names')
item = Cache_item(names,request[3],request[4],(address,call_id))
self.cached_items[request[1]] = item
# here is the actual publish: redundancy is settings.cache_redundancy
for name in names:
self.node.publish(name, request[3], settings.cache_redundancy)
finally:
self.lock.release()
return None
if request[0] == 'data cache remove':
self.lock.acquire()
try:
lock = hash.hash_of(request[1])
if self.cached_items.has_key(lock):
self.node.unpublish(self.cached_items[lock].data)
del self.cached_items[lock]
finally:
self.lock.release()
return None
def handle(self, request, ignored__address, call_id):
check.check_matches(request, (types.StringType,))
check.check_is_af_inet_address(ignored__address)
if request[0] == 'gossip list':
#TODO: Type checking, locking, oh, and this is really inefficient
self.any_gossip_gets = 1
list = [ ]
for item in self.gossip[:]:
list.append((to_fixed(item.distance(self.app.name_server)),
item.unit_decay_time,
item.signature))
list.sort()
return list[request[1]:request[2]]
elif request[0] == 'gossip get':
for item in self.gossip:
if item.signature == request[1]:
return item.string
return error.Error(_("No such wodge."))
def handle(self, request, address, call_id):
check.check_matches(request, (types.StringType,))
check.check_is_af_inet_address(address)
if request[0] == 'auction bid':
name = request[1]
bid = request[2]
if self.auctions.has_key(name):
print "auction found"
if self.auctions_prices[name] < bid:
self.auctions_prices[name] = bid
return 'ok'
else:
print "bid too low"
return 'bid too low'
else:
return 'error: no such auction'
elif request[0] == 'auction list':
list = self.auctions
return list
def __init__(self, host,password=None, transient_for=None):
utility.Synchronous.__init__(self)
if sys.platform == 'win32':
self.read_stdout, self.write_stdin = _make_connection_win32(host,password)
else:
self.read_stdout, self.write_stdin = _make_connection_daemon(host,password)
#On win32 newline is \n\r, confusion ensues
#line = self.read_stdout.readline()
line = ''
while 1:
char = self.read_stdout.read(1)
if char == '\n' or not char:
break
line = line + char
if line[:5] != 'PORT ':
self.write_stdin.close()
self.read_stdout.close()
if sys.platform == 'win32':
message = 'Attempt to start the proxy failed.\n\n' + \
'Check the username, server name and password.\n\n' + \
'(see "Help" for more information)'
else:
message = 'Attempt to start the proxy failed.\n\n'+\
'Check your username, server name and password.'
raise Error(message)
self.address = ('127.0.0.1', string.atoi(line[5:]))
self.broken = 0
self.running = 1
check.check_is_af_inet_address(self.address) #=@E3
def handle(self, request, address, call_id):
check.check_matches(request, (types.StringType,))
check.check_is_af_inet_address(address)
if request[0] == 'download chunk':
path, mtime = self.paths.get(request[1],(None,None))
if not path:
path, mtime = self.private_paths.get(request[1],(None,None))
try:
if not path or \
os.path.getmtime(path) != mtime:
return Error("no such file")
file = open(path,'rb')
except IOError:
return Error("no such file")
if address[0] !='127.0.0.1'\
and address not in self.node.trusted_addresses \
and self.private_directory != ''\
and utility.is_subdir(path,self.private_directory):
return Error("access denied")
try:
file.seek(request[2])
return file.read(request[3])
finally:
file.close()
elif request[0] == 'files available':
if len(request) == 3:
# this returns the keys of
# all published files from all directories
# regardless of the directory structure
list = self.paths.keys()
else:
list = [ ]
access_denied = 0
directory_found = 0
string_request = []
for str in request[3]:
string_request.append(utility.force_string(str))
if not self.roots:
return Error('No public directory')
request_dir = apply(
os.path.join,
[os.path.abspath(self.roots[0][0])] + string_request)
if address[0]=='127.0.0.1':
flags = flags_local
else:
flags = flags_fast
if os.path.exists(request_dir):
directory_found = 1
if address[0]!='127.0.0.1' \
and address not in self.node.trusted_addresses\
and self.private_directory != ''\
and utility.is_subdir(request_dir,self.private_directory):
access_denied = 1
if not directory_found:
return Error("no such directory: %s"%request_dir)
elif access_denied:
return Error("access denied")
entry = build_entry(request_dir,None,flags,self)
if entry:
if not entry.is_dir:
return Error("not a directory: "+request_dir)
for file in entry.files:
entry_2 = build_entry(file,None,flags,self)
if entry_2:
info = entry_2.info.copy()
info['path'] = request[3] + [ info['filename'] ]
list.append(info)
return list[request[1]:request[2]]
def handle(self, request, address,call_id):
check.check_matches(request, (types.StringType,))
check.check_is_af_inet_address(address) #=@R30
if request[0] == 'identity test':
check.check_matches(request[1:], ('name',))
return self.sign('identity test ' + request[1])
elif request[0] == 'identity query':
return self.get_info()
elif request[0] == 'identity watch':
self.lock.acquire()
try:
if address not in self.watchers:
self.watchers.append(address)
status = self.status
finally:
self.lock.release()
return status
elif request[0] == 'identity abort':
def abort_thread(self, address=address):
id_test_result = []
yield 'wait', identity_test_thread(address,self.public_key,self.node,id_test_result)
if not id_test_result[0]:
print "error testing identity"
return
self.aborted = 1
self.app.shutdown(_('Reconnecting from different machine'))
utility.start_thread(abort_thread(self))
return None
elif request[0] == 'identity connecting':
if not (len(request) >= 2):
return error.Error('Name_server.handle: identity connecting: expecting tuple of at least 2.')
self.acquire_lock('get acq')
try:
acq = self.acquaintances.get(request[1])
finally:
self.release_lock('get acq')
if acq is None:
return error.Error(_("I don't know you."))
else:
#if len(request) > 2:
# status = request[2]
#else:
# status = { }
def acq_change_thread(ns, acq, address, call_id, node):
check.check_is_af_inet_address(address) #=@R29
try:
result, subthread = try_address(acq,address,node)
yield 'wait',subthread
if not result[0]:
return
except error.Error:
return
#acq.lock.acquire()
#acq.status = status
#acq.lock.release()
ns.acquaintance_status_changed(acq, 'connect')
utility.start_thread(acq_change_thread(self, acq, address, call_id, self.node))
# Proof of @R29: @R30; deeply immutable by @E11.
return None
elif request[0] == 'identity status changed':
if not (len(request) >= 3):
return error.Error('Name_server.handle: identity status changed: expecting tuple of at least 3.')
self.lock.acquire()
try:
acq = self.acquaintances.get(request[1],None)
if acq:
acq.lock.acquire()
try:
acq.status = request[2]
finally:
acq.lock.release()
self.acquaintance_status_changed(acq, 'status changed')
finally:
self.lock.release()
elif request[0] == 'identity disconnecting':
if not (len(request) >= 2):
return error.Error('Name_server.handle: identity disconnecting: expecting tuple of at least 2.')
self.lock.acquire()
if address in self.watchers:
self.watchers.remove(address)
if self.acquaintances.has_key(request[1]):
acq = self.acquaintances[request[1]]
self.lock.release()
if acq.disconnection(address):
self.acquaintance_status_changed(acq, 'disconnect', message=request[2])
return None
else:
self.lock.release()
return error.Error(_("I don't know you."))
def random_af_inet_address():
ret = (random_nullless_string(), random_int())
check.check_is_af_inet_address(ret)
return ret
