def get_file_from_server(host, port, filename, flag_overwrite=False):
global _sock
try:
client_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
except socket.error as e:
print("Error creating client socket")
return
try:
client_socket.connect((host, port))
except socket.error as e:
client_socket.close()
print("error connecting to server: %s" % e)
return
_sock = client_socket
signal.signal(signal.SIGURG, urgent_data_handler)
fcntl.fcntl(client_socket.fileno(), fcntl.F_SETOWN, os.getpid())
try:
#get file size
packed_size = connutils.recv_buffer(client_socket, 8)
if len(packed_size) != 8:
return
#unpack long long format
server_filesize = struct.unpack("!Q", packed_size)
if not server_filesize:
print("Error receiving filesize")
return
server_filesize = server_filesize[0]
print("Server file size %s" % server_filesize)
try:
(f, seek_value) = client.create_client_file(filename,
server_filesize, flag_overwrite)
except client.ClientError as e:
print("Create file error: %s" % e)
return
packed_seek = struct.pack("!Q", seek_value)
if not connutils.send_buffer(client_socket, packed_seek):
f.close()
return
print("Receiving file...")
bytes_received = fileutils.recv_file(client_socket, f, server_filesize
- seek_value, progress_callback=recv_progress_handler)
print("Bytes received %s" % bytes_received)
if (bytes_received + seek_value) != server_filesize:
print("!!Not all data received!!")
f.close()
except Exception as e:
print("Client Disconnected: %s" % e)
finally:
signal.signal(signal.SIGURG, signal.SIG_DFL)
client_socket.close()
def get_file_from_server(host, port, filename, flag_overwrite=False):
try:
client_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
except socket.error as e:
print("Error creating client socket")
return
try:
client_socket.connect((host, port))
except socket.error as e:
client_socket.close()
print("error connecting to server: %s" % e)
return
try:
#get file size
packed_size = connutils.recv_buffer(client_socket, 8)
if len(packed_size) != 8:
return
#unpack long long format
server_filesize = struct.unpack("!Q", packed_size)
if not server_filesize:
print("Error receiving filesize")
return
server_filesize = server_filesize[0]
print("Server file size %s" % server_filesize)
seek_value = 0
try:
(f, seek_value) = client.create_client_file(filename,
server_filesize, flag_overwrite)
except client.ClientError as e:
print("Create file error: %s" % e)
return
packed_seek = struct.pack("!Q", seek_value)
if not connutils.send_buffer(client_socket, packed_seek):
f.close()
return
print("Receiving file...")
bytes_received = fileutils.recv_file(client_socket, f, server_filesize)
print("Bytes received %s" % bytes_received)
if (bytes_received + seek_value) != server_filesize:
print("!!Not all data received!!")
f.close()
except Exception as e:
print(e)
finally:
client_socket.close()
def get_file_from_server(host, port, filename, flag_overwrite=False):
try:
client_socket = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
except socket.error as e:
print("Error creating client socket")
return
try:
client_socket.connect((host, port))
except socket.error as e:
client_socket.close()
print("error connecting to server: %s" % e)
return
try:
#get file size
myDatagram = protocol.MyDatagram()
server_filesize = myDatagram.send_request_blocking(client_socket,
protocol.PROTOCOL_COMMAND_SIZE)
if not server_filesize:
return
print("Server file size %s" % server_filesize)
try:
(f, seek_value) = client.create_client_file(filename,
server_filesize, flag_overwrite)
except client.ClientError as e:
print("Create file error %s" % e)
return
try:
bytes_received = fileutils.recv_file_udp(client_socket, f,
server_filesize - seek_value, myDatagram,
progress_callback=recv_progress_handler)
finally:
f.close()
print("Bytes received %s" % bytes_received)
if (bytes_received + seek_value) != server_filesize:
print("!!Not all data received!!")
except client.UdpClientError as e:
print("Udp client error: %s" % e)
except Exception as e:
print("Client disconnected: %s" % e)
finally:
client_socket.close()
