120 lines
3.3 KiB
Python
120 lines
3.3 KiB
Python
import os
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import socket
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CLIENT_FILE = "clientfile"
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# This prints 1 line at first, then the whole list after running the command again
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def handle_list(conn, args):
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# Show list of files received from server in response to LIST command
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# Response is a multi-line string
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response = conn.recv(4096).decode('latin-1').strip()
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print(response)
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# Check for multi-line response
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while response.startswith("1"):
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response = conn.recv(4096).decode("latin-1")
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print(response)
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def handle_quit(conn, args):
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conn.sendall("QUIT\r\n".encode())
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# Receive response from server
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# Decode bytes to string
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response = conn.recv(1024).decode('utf-8').strip()
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print(response)
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conn.close()
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return True
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def handle_DWLD(conn, args):
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# send command over
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filename = args
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conn.sendall(f"DWLD {filename}\r".encode())
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os.chdir(os.path.abspath(CLIENT_FILE))
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filedata = conn.recv(1024)
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print(filedata)
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with open(filename, "wb") as f:
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f.write(filedata)
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os.chdir("../")
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print("File downloaded successfully")
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# def handle_dwld(conn, args):
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# filename = args
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# conn.sendall(f"DWLD {filename}\r".encode())
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# filedata = conn.recv(1024)
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# print(filedata)
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# with open(filename, "wb") as f:
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# f.write(filedata)
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# print("File downloaded successfully")
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def handle_UPLD(conn, args):
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filename = args
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os.chdir(os.path.abspath(CLIENT_FILE))
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if not os.path.exists(filename):
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print("File does not exist")
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else:
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with open(filename, "rb") as f:
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filedata = f.read(4096)
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file_size = os.path.getsize(filename)
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conn.sendall(f"UPLD {filename} {file_size}\r".encode())
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conn.sendall(filedata)
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response = conn.recv(4096).decode().strip()
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print(response)
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os.chdir("../")
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def user_input():
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# Get user input
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user_input = input("> ").strip()
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# Parse command and arguments
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if " " in user_input:
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command, args = user_input.split(" ", 1)
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else:
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command, args = user_input, ""
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return command, args
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def ftp_cient(host, port):
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sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
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sock.connect((host, port))
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response = sock.recv(1024).decode().strip()
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print(response)
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while True:
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user_input = input("> ").strip()
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if " " in user_input:
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command, args = user_input.split(" ", 1)
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else:
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command, args = user_input, ""
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if command.upper() == "LIST":
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sock.sendall("LIST\r\n".encode())
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handle_list(sock, args)
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elif command.upper() == "QUIT":
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handle_quit(sock, args)
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break
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elif command.upper() == "DWLD":
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handle_DWLD(sock, args)
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elif command.upper() == "UPLD":
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handle_UPLD(sock, args)
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elif command.upper() == "DELF":
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filename = args
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sock.sendall(f"DELF {filename}\r".encode())
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elif command.upper() == "RNTO":
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oldName, newName = args.split(" ", 1)
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sock.sendall(f"RNTO {oldName} {newName}\r".encode())
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else:
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print("Invalid command")
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sock.close()
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if __name__ == "__main__":
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# FTP Client should be able to define IP and port
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ftp_cient("127.0.0.1", 2001)
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