def _leader_lookup(self, data):
# TODO: there is absolutely no use of sending uuid of the message initiator
# uuid, text_search = data
text_search = data['search_query']
filtered_response = []
for uuid in self.factory.data_from_peers.keys():
for filename in self.factory.data_from_peers[uuid]['filenames']:
if fuzz.partial_ratio(text_search.lower(),
filename.lower()) >= 55:
file_hash = self.factory.data_from_peers[uuid][
'filenames'][filename]
try:
filtered_response.append(
self.factory.data_from_peers[uuid]['hashes']
[file_hash])
except Exception as e:
print e
print_log('BIGGEST MESS UP {0}'.format(filename),
WARNING_LOG)
if len(self.factory.data_from_peers.keys()) == 0:
filtered_response = []
# update_msg = Basemessage(key=SEARCH_RES, data=filtered_response)
update_msg = bake(SEARCH_RES, search_query_response=filtered_response)
self.sendLine(update_msg) # this we are sending it back to the server
# leader will loseConnection with the requesting server
self.transport.loseConnection()
def _remove_dead_entry(self, data):
uuid = data['dead_uuid']
print_log('removing entry {0}'.format(uuid))
try:
del self.factory.data_from_peers[uuid]
except:
raise ServerException(
1, '{0} not available in cached data'.format(uuid))
def _update_leader(self, data):
self.factory.leader = data['leader']
print_log('Updating Leader {0}'.format(self.factory.book.leader))
if self.factory.state == READY and self.leaderThere(
) and self.factory.shared_folder is not None:
file_meta_data = yield fileHashUtils.bootstrap(
self.factory.shared_folder, self.factory.dbpool)
self.fileindexing_complete(file_meta_data)
def display_error(self, data):
'''
callback: displays leader/tracker not available
triggered when leader not ready
'''
# print 'Tracker not available..'
print_log(data['reason'], WARNING_LOG)
reactor.stop()
def _handshake(self, data):
filehash = data['filehash']
if self.factory.state == READY:
piece_hashes = yield fileHashUtils.get_piecehashes_of(
filehash, self.factory.dbpool)
ack_msg = bake(FILE_CONFIRMATION_MESSAGE, piecehashes=piece_hashes)
self.sendLine(ack_msg)
else:
print_log('not ready yet', WARNING_LOG)
def clientConnectionFailed(self, connector, reason):
try:
if self.query == SHARE:
update_config(shared_folder=self.arguments)
elif self.query == CHANGE:
update_config(download_folder=self.arguments)
else:
print_log('iwant server is not running', ERROR_LOG)
finally:
reactor.stop()
def fileindexing_complete(self, indexing_response):
# print_log('Files completely indexed')
# print_log('SHARING {0}'.format(indexing_response['shared_folder']))
for file_name in indexing_response['ADD']:
print_log('[Adding] {0} \t {1}'.format(file_name[0], file_name[1]))
for file_name in indexing_response['DEL']:
print_log('[Removing] {0}'.format(file_name[0]))
self.factory.state = READY
del indexing_response['shared_folder']
if self.leaderThere():
self.factory._notify_leader(HASH_DUMP, indexing_response)
def _leader_send_list(self, data):
if self.leaderThere():
print_log('lookup request sent to leader')
search_query = data['search_query']
self.factory._notify_leader(key=LOOKUP,
data=search_query,
persist=True,
clientConn=self)
else:
# msg = Basemessage(key=LEADER_NOT_READY, data=None)
msg = bake(key=LEADER_NOT_READY, reason='Tracker is not available')
self.sendLine(msg)
self.transport.loseConnection()
def _change_download_folder(self, data):
new_download_folder = data['download_folder']
msg = bake(NEW_DOWNLOAD_FOLDER_RES,
download_folder_response=new_download_folder)
if not os.path.isdir(new_download_folder):
msg = bake(
NEW_DOWNLOAD_FOLDER_RES,
download_folder_response='Invalid download path provided')
else:
print_log(
'changed download folder to {0}'.format(new_download_folder))
self.factory.download_folder = new_download_folder
self.sendLine(msg)
self.transport.loseConnection()
def _load_file(self, data):
fhash = data['filehash']
if self.factory.state == READY:
self.fileObj = yield fileHashUtils.get_file(
fhash, self.factory.dbpool)
self.chunk_size = piece_size(
fileHashUtils.get_file_size(self.fileObj.name))
# unchoke_msg = Basemessage(key=UNCHOKE, data=None)
unchoke_msg = bake(key=UNCHOKE, unchoke=True)
self.sendLine(unchoke_msg)
else:
print_log(
'need to handle this part where files are not indexed yet',
ERROR_LOG)
def _ask_leader_for_peers(self, data):
if self.leaderThere():
print_log('asking leaders for peers')
#print_log( data)
filehash = data['filehash']
self.factory._notify_leader(key=SEND_PEER_DETAILS,
data=filehash,
persist=True,
clientConn=self)
else:
# msg = Basemessage(key=LEADER_NOT_READY, data=None)
msg = bake(key=LEADER_NOT_READY, reason='Tracker is not available')
self.sendLine(msg)
self.transport.loseConnection()
def show_search_results(self, data):
'''
callback: displays file search response from the leader(via local server)
triggered when server replies the file search response from the leader to the client
'''
search_response = data['search_query_response']
response = []
for i in search_response:
response.append(i[:-1])
print_log(
tabulate.tabulate(
response, headers=["Filename", "Size", "Checksum",
"RootHash"]), CLIENT_LOG_INFO)
reactor.stop()
def _dump_data_from_peers(self, data):
uuid = data['identity']
file_addition_updates = data['operation']['ADD']
file_removal_updates = data['operation']['DEL']
for file_properties in file_addition_updates:
pass
# print_log(
# '[Leader Adding] {0} \t {1}'.format(
# file_properties[0],
# file_properties[1]))
for file_properties in file_removal_updates:
print_log('[Leader Removing] {0}'.format(file_properties[0]))
if uuid not in self.factory.data_from_peers.keys():
self.factory.data_from_peers[uuid] = {}
self.factory.data_from_peers[uuid]['hashes'] = {}
self.factory.data_from_peers[uuid]['filenames'] = {}
for fproperty in file_addition_updates:
file_hash = fproperty[2]
file_name = fproperty[0]
if file_name in self.factory.data_from_peers[uuid]['filenames']:
old_hash_key = self.factory.data_from_peers[uuid]['filenames'][
file_name]
try:
del self.factory.data_from_peers[uuid]['hashes'][
old_hash_key]
except Exception as e:
print_log(
'need to handle this major issue : {0}, for reason {1}'
.format(file_name, e), WARNING_LOG)
if file_hash not in self.factory.data_from_peers[uuid]:
self.factory.data_from_peers[uuid]['hashes'][
file_hash] = fproperty
self.factory.data_from_peers[uuid]['filenames'][
file_name] = file_hash
for fproperty in file_removal_updates:
file_name = fproperty[0]
file_hash = fproperty[2]
if file_hash in self.factory.data_from_peers[uuid]['hashes']:
del self.factory.data_from_peers[uuid]['hashes'][file_hash]
del self.factory.data_from_peers[uuid]['filenames'][file_name]
print_log('deleting hash : {0} filename {1}'.format(
file_hash, file_name))
else:
if file_name in self.factory.data_from_peers[uuid][
'filenames']:
# very very stupid hack [ just because of empty files ]
del self.factory.data_from_peers[uuid]['filenames'][
file_name]
print_log('deleting HACK : {0} filename {1}'.format(
file_hash, file_name))
def talk_to_peer(self, data):
from twisted.internet import reactor
self.transport.loseConnection()
if len(data) == 0:
print_log(
'Tell the client that peer lookup response is 0. Have to handle this',
WARNING_LOG)
# update_msg = Basemessage(key=SEARCH_RES, data=data)
else:
from iwant.core.protocols import DownloadManagerFactory
response = data['peer_lookup_response']
file_root_hash = response['file_root_hash']
peers = map(lambda host: host[0], response['peers'])
checksum = self.factory.dump
reactor.connectTCP(
peers[0], SERVER_DAEMON_PORT,
DownloadManagerFactory(clientConn,
self.factory.download_folder,
checksum, file_root_hash, peers,
self.factory.dbpool))
def show_file_to_be_downloaded(self, data):
'''
callback: displays file to be downloaded
triggered when user downloads a file
'''
file_structure_response = data['message']
if file_structure_response['isFile']:
file_name = file_structure_response['filename']
file_size = file_structure_response['filesize']
checksum = file_structure_response['checksum']
print_log(
'Filename: {0}\nSize: {1} MB'.format(file_name, file_size),
CLIENT_LOG_INFO)
else:
root_directory = file_structure_response['rootDirectory']
root_directory_checksum = file_structure_response[
'rootDirectoryChecksum']
print_log(
'Directory: {0}\nDirectory Checksum: {1}'.format(
root_directory, root_directory_checksum), CLIENT_LOG_INFO)
files = file_structure_response['files']
for file_property in files:
filename, size, checksum = file_property
print_log('Filename: {0}\tSize: {1} MB'.format(filename, size),
CLIENT_LOG_INFO)
reactor.stop()
def _end_game(self, data):
if data['end_game']:
print_log('received end game')
self.fileObj.close()
def confirm_new_download_folder(self, data):
print_log(
'Download Folder: {0}'.format(data['download_folder_response']),
CLIENT_LOG_INFO)
reactor.stop()
def confirm_new_shared_folder(self, data):
print_log('Shared Folder: {0}'.format(data['shared_folder_response']),
CLIENT_LOG_INFO)
reactor.stop()
def _notify_leader(self,
key=None,
data=None,
persist=False,
clientConn=None):
from twisted.internet.protocol import ClientFactory
from twisted.internet import reactor
class ServerLeaderProtocol(BaseProtocol):
def __init__(self, factory):
self.buff = ''
self.delimiter = '\r'
self.special_handler = None
self.factory = factory
self.events = {
PEER_LOOKUP_RESPONSE: self.talk_to_peer,
SEARCH_RES: self.send_file_search_response,
HASH_NOT_PRESENT: self.invalid_file_response
}
def connectionMade(self):
if self.factory.key == LOOKUP:
update_msg = bake(LOOKUP, search_query=self.factory.dump)
elif self.factory.key == HASH_DUMP:
update_msg = bake(HASH_DUMP,
identity=self.factory.identity,
operation=self.factory.dump)
elif self.factory.key == SEND_PEER_DETAILS:
update_msg = bake(SEND_PEER_DETAILS,
filehash=self.factory.dump)
# self.transport.write(str(update_msg))
self.sendLine(update_msg)
if not persist:
self.transport.loseConnection()
def serviceMessage(self, data):
key, value = unbake(message=data)
self.events[key](value)
def invalid_file_response(self, data):
reason = data['reason']
msg = bake(HASH_NOT_PRESENT, reason=reason)
clientConn.sendLine(msg)
clientConn.transport.loseConnection()
def talk_to_peer(self, data):
from twisted.internet import reactor
self.transport.loseConnection()
if len(data) == 0:
print_log(
'Tell the client that peer lookup response is 0. Have to handle this',
WARNING_LOG)
# update_msg = Basemessage(key=SEARCH_RES, data=data)
else:
from iwant.core.protocols import DownloadManagerFactory
response = data['peer_lookup_response']
file_root_hash = response['file_root_hash']
peers = map(lambda host: host[0], response['peers'])
checksum = self.factory.dump
reactor.connectTCP(
peers[0], SERVER_DAEMON_PORT,
DownloadManagerFactory(clientConn,
self.factory.download_folder,
checksum, file_root_hash, peers,
self.factory.dbpool))
def send_file_search_response(self, data):
update_msg = bake(
SEARCH_RES,
search_query_response=data['search_query_response'])
clientConn.sendLine(update_msg)
clientConn.transport.loseConnection()
class ServerLeaderFactory(ClientFactory):
def __init__(self, key, dump, **kwargs):
self.key = key
self.dump = dump
self.download_folder = kwargs['download_folder']
self.dbpool = kwargs['dbpool']
self.identity = kwargs['identity']
def clientConnectionLost(self, connector, reason):
# print 'connection with leader dropped'
pass
def clientConnectionFailed(self, connector, reason):
# print 'connection with leader dropped'
pass
def buildProtocol(self, addr):
return ServerLeaderProtocol(self)
if key == HASH_DUMP:
factory = ServerLeaderFactory(key=key,
dump=data,
identity=self.book.uuidObj,
dbpool=None,
download_folder=None)
elif key == LOOKUP:
factory = ServerLeaderFactory(key=key,
dump=data,
identity=None,
dbpool=None,
download_folder=None)
elif key == SEND_PEER_DETAILS:
factory = ServerLeaderFactory(key=key,
dump=data,
identity=None,
download_folder=self.download_folder,
dbpool=self.dbpool)
if key == SEND_PEER_DETAILS or key == LOOKUP:
if self.leader is not None:
host, port = self.leader[0], self.leader[1]
print_log('connecting to {0}:{1} for {2}'.format(
host, port, key))
reactor.connectTCP(host, port, factory)
elif key == HASH_DUMP:
if self.leader is not None and self.state == READY:
host, port = self.leader[0], self.leader[1]
print_log('connecting to {0}:{1} for {2}'.format(
host, port, key))
reactor.connectTCP(host, port, factory)
