SFTP-сервер на Python с Paramiko не разрешает SFTP-соединения

SFTP-сервер на Python с Paramiko не разрешает SFTP-соединения ⇐ Python

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Anonymous

SFTP-сервер на Python с Paramiko не разрешает SFTP-соединения

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Сообщение Anonymous » 23 окт 2024, 08:32

Я использую Paramiko для размещения SFTP-сервера с Python.
Я использую базу данных PostgreSQL для хранения учетных данных пользователей.
Эти коды сильно отличаются от того, что я использую изначально написал, потому что пытался использовать ИИ, чтобы исправить это, но это не сработало.
Я создаю класс, расширяющий paramiko.ServerInterface:

Код: Выделить всё

class SftpServer(paramiko.ServerInterface):
def __init__(self, home_dir=None):
self.home_dir = home_dir

def check_auth_password(self, username, password):
if authenticate_user(username, password=password):
logging.debug(f"User {username} authenticated by password.")
return paramiko.AUTH_SUCCESSFUL
else:
logging.debug(f"Failed password authentication for user {username}.")
return paramiko.AUTH_FAILED

def check_auth_publickey(self, username, key):
public_key = key.get_base64()
if authenticate_user(username, public_key=public_key):
logging.debug(f"User {username} authenticated by public key.")
return paramiko.AUTH_SUCCESSFUL
else:
logging.debug(f"Failed public key authentication for user {username}.")
return paramiko.AUTH_FAILED

def check_channel_request(self, kind, chanid):
logging.debug(f"Channel request type: {kind}")
if kind == 'session':
return paramiko.OPEN_SUCCEEDED
elif kind == "[email protected]":
logging.debug(f"Non standard request recived: {kind}")
return paramiko.OPEN_SUCCEEDED
else:
logging.debug(f"Channel type not supported: {kind}")
return paramiko.OPEN_FAILED_ADMINISTRATIVELY_PROHIBITED

def check_channel_subsystem_request(self, channel, name):
logging.debug(f"Channel request type (subsystem): {name}")
if name == 'sftp':
return paramiko.OPEN_SUCCEEDED
elif name == "[email protected]":
logging.debug(f"Non standard request recived by subsystem: {name}")
return paramiko.OPEN_SUCCEEDED
return paramiko.OPEN_FAILED_ADMINISTRATIVELY_PROHIBITED

def check_channel_pty_request(self, channel, term, width, height, pixelwidth, pixelheight, modes):
logging.debug("PTY request granted.")
return True

def check_channel_shell_request(self, channel):
logging.debug("Shell request granted.")
return True

Then i use this function to handle client channels:

def handle_client(channel: paramiko.Channel, server: SftpServer):
try:
# Check if the client requested a pseudo-terminal
if channel.get_pty():
# Start interactive shell
logging.debug("PTY allocated.  Starting interactive shell.")
start_shell(channel)
else:
# If no PTY requested, start the SFTP session
logging.debug("Starting SFTP session.")
sftp_server = paramiko.SFTPServer(channel=channel, server=server, name='sftp')
sftp_server.start()

while not channel.closed:
time.sleep(1)
except paramiko.SSHException as e:
logging.error(f"SSH exception: {e}")
except Exception as e:
logging.error(f"Error handling client: {e}")
finally:
logging.debug("Closing channel.")
channel.close()

Затем эта функция для запуска сервера:

Код: Выделить всё

def start_sftp_server():
logging.info("Starting SFTP server...")
server_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
server_socket.settimeout(60)
server_socket.bind(('localhost', 2222))
server_socket.listen(100)

host_key = paramiko.RSAKey.generate(2048)

while True:
try:
client_socket, addr = server_socket.accept()
logging.info(f"Connection accepted from {addr}")

transport = paramiko.Transport(client_socket)
transport.add_server_key(host_key)

server = SftpServer(home_dir="C:/sftp_users")

try:
transport.start_server(server=server)
except paramiko.SSHException as e:
logging.error(f"SSH negotiation failed: {e}")
continue

channel = transport.accept(20)
if channel is None:
logging.error("No channel found")
continue

logging.info("Client authenticated, starting SFTP session.")
threading.Thread(target=handle_client, args=(channel, server)).start()

except Exception as e:
logging.error(f"An error occurred accepting the connection: {e}")

Когда я пытаюсь подключиться к этому с помощью таких клиентов, как Filezilla или WinSCP, сервер возвращает мне ошибку:

Код: Выделить всё

DEB [20241015-22:42:43.279] thr=2   paramiko.transport: starting thread (server mode): 0xefa33b0
DEB [20241015-22:42:43.279] thr=2   paramiko.transport: Local version/idstring: SSH-2.0-paramiko_3.5.0
DEB [20241015-22:42:43.330] thr=2   paramiko.transport: Remote version/idstring: SSH-2.0-WinSCP_release_6.3.5
INF [20241015-22:42:43.330] thr=2   paramiko.transport: Connected (version 2.0, client WinSCP_release_6.3.5)
DEB [20241015-22:42:43.334] thr=2   paramiko.transport: === Key exchange possibilities ===
DEB [20241015-22:42:43.334] thr=2   paramiko.transport: kex algos: [email protected], curve448-sha512, curve25519-sha256, [email protected], ecdh-sha2-nistp256, ecdh-sha2-nistp384, ecdh-sha2-nistp521, diffie-hellman-group-exchange-sha256, diffie-hellman-group-exchange-sha1, diffie-hellman-group18-sha512, diffie-hellman-group17-sha512, diffie-hellman-group16-sha512, diffie-hellman-group15-sha512, diffie-hellman-group14-sha256, diffie-hellman-group14-sha1, rsa2048-sha256, rsa1024-sha1, diffie-hellman-group1-sha1, ext-info-c, [email protected]
DEB [20241015-22:42:43.335] thr=2   paramiko.transport: server key: rsa-sha2-512, rsa-sha2-256, ssh-rsa, ssh-ed448, ssh-ed25519, ecdsa-sha2-nistp256, ecdsa-sha2-nistp384, ecdsa-sha2-nistp521, ssh-dss
DEB [20241015-22:42:43.335] thr=2   paramiko.transport: client encrypt: aes256-ctr, aes256-cbc, [email protected], aes192-ctr, aes192-cbc, aes128-ctr, aes128-cbc, [email protected], [email protected], [email protected], 3des-ctr, 3des-cbc, blowfish-ctr, blowfish-cbc, arcfour256, arcfour128
DEB [20241015-22:42:43.336] thr=2   paramiko.transport: server encrypt: aes256-ctr, aes256-cbc, [email protected], aes192-ctr, aes192-cbc, aes128-ctr, aes128-cbc, [email protected], [email protected], [email protected], 3des-ctr, 3des-cbc, blowfish-ctr, blowfish-cbc, arcfour256, arcfour128
DEB [20241015-22:42:43.337] thr=2   paramiko.transport: client mac: hmac-sha2-256, hmac-sha2-512, hmac-sha1, hmac-sha1-96, hmac-md5, [email protected], [email protected], [email protected], [email protected], [email protected]
DEB [20241015-22:42:43.337] thr=2   paramiko.transport: server mac:  hmac-sha2-256, hmac-sha2-512, hmac-sha1, hmac-sha1-96, hmac-md5, [email protected], [email protected], [email protected], [email protected], [email protected]
DEB [20241015-22:42:43.337] thr=2   paramiko.transport: client compress: none, zlib, [email protected]
DEB [20241015-22:42:43.338] thr=2   paramiko.transport: server compress: none, zlib, [email protected]
DEB [20241015-22:42:43.338] thr=2   paramiko.transport: client lang: 
DEB [20241015-22:42:43.338] thr=2   paramiko.transport: server lang: 
DEB [20241015-22:42:43.338] thr=2   paramiko.transport: kex follows: False
DEB [20241015-22:42:43.339] thr=2   paramiko.transport: === Key exchange agreements ===
DEB [20241015-22:42:43.339] thr=2   paramiko.transport: Strict kex mode: True
DEB [20241015-22:42:43.339] thr=2   paramiko.transport: Kex: [email protected]
DEB [20241015-22:42:43.339] thr=2   paramiko.transport: HostKey: rsa-sha2-512
DEB [20241015-22:42:43.340] thr=2   paramiko.transport: Cipher: aes256-ctr
DEB [20241015-22:42:43.340] thr=2   paramiko.transport: MAC: hmac-sha2-256
DEB [20241015-22:42:43.341] thr=2   paramiko.transport: Compression: none
DEB [20241015-22:42:43.341] thr=2   paramiko.transport: === End of kex handshake ===
DEB [20241015-22:42:43.347] thr=2   paramiko.transport: Resetting outbound seqno after NEWKEYS due to strict mode
DEB [20241015-22:42:43.347] thr=2   paramiko.transport: kex engine KexCurve25519 specified hash_algo 
DEB [20241015-22:42:43.408] thr=2   paramiko.transport: Switch to new keys ...
DEB [20241015-22:42:43.408] thr=2   paramiko.transport: Resetting inbound seqno after NEWKEYS due to strict mode
DEB [20241015-22:42:43.429] thr=2   paramiko.transport: Auth request (type=none) service=ssh-connection, username=MagoLione
INF [20241015-22:42:43.430] thr=2   paramiko.transport: Auth rejected (none).
DEB [20241015-22:42:43.456] thr=2   paramiko.transport: Auth request (type=password) service=ssh-connection, username=MagoLione
INF [20241015-22:42:43.909] thr=2   paramiko.transport: Auth granted (password).
DEB [20241015-22:42:43.910] thr=2   paramiko.transport: [chan 0] Max packet in: 32768 bytes
DEB [20241015-22:42:43.910] thr=2   paramiko.transport: [chan 0] Max packet out: 16384 bytes
DEB [20241015-22:42:43.911] thr=2   paramiko.transport: Secsh channel 0 (session) opened.
DEB [20241015-22:42:43.911] thr=2   paramiko.transport: [chan 0] Unhandled channel request "[email protected]"
DEB [20241015-22:42:43.913] thr=2   paramiko.transport: [chan 0] EOF sent (0)
ERR [20241015-22:42:43.972] thr=2   paramiko.transport: Socket exception: Connessione in corso interrotta forzatamente dall'host remoto (10054)

Это консоль:

Код: Выделить всё

DEBUG:root:User MagoLione authenticated by password.
INFO:paramiko.transport:Auth granted (password).
DEBUG:root:Channel request type: session
DEBUG:paramiko.transport:[chan 0] Max packet in: 32768 bytes
DEBUG:paramiko.transport:[chan 0] Max packet out: 16384 bytes
DEBUG:paramiko.transport:Secsh channel 0 (session) opened.
INFO:root:Client authenticated, starting SFTP session.
DEBUG:paramiko.transport:[chan 0] Unhandled channel request "[email protected]"
DEBUG:root:Channel request type (subsystem): sftp
DEBUG:paramiko.transport:[chan 0] EOF sent (0)
ERROR:root:SSH exception: Channel closed.
DEBUG:root:Closing channel.
DEBUG:root:Shell request granted.
ERROR:paramiko.transport:Socket exception: Connessione in corso interrotta forzatamente dall'host remoto (10054)

И в клиенте:

Код: Выделить всё

>  Server refused to start a shell/command

Поэтому я попытался реализовать функциональность оболочки/команды с помощью:

Код: Выделить всё

def start_shell(channel):
import subprocess

shell_process = subprocess.Popen(
['powershell.exe'],
stdin=subprocess.PIPE,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE
)

while True:
data = channel.recv(1024)
if not data:
break
shell_process.stdin.write(data)
shell_process.stdin.flush()

output = shell_process.stdout.read(1024)
if output:
channel.send(output)

shell_process.terminate()

До реализации SHELL программы возвращают мне эту ошибку:

Код: Выделить всё

DEB [20241009-10:27:39.371] thr=1   paramiko.transport: starting thread (server mode):
0xffe8a750
DEB [20241009-10:27:39.372] thr=1   paramiko.transport: Local version/idstring: SSH-2.0-paramiko_3.5.0
DEB [20241009-10:27:39.411] thr=1   paramiko.transport: Remote version/idstring: SSH-2.0-WinSCP_release_6.3.5
INF [20241009-10:27:39.411] thr=1   paramiko.transport: Connected (version 2.0, client WinSCP_release_6.3.5)
DEB [20241009-10:27:39.417] thr=1   paramiko.transport: === Key exchange possibilities ===
DEB [20241009-10:27:39.417] thr=1   paramiko.transport: kex algos: [email protected], curve448-sha512, curve25519-sha256, [email protected], ecdh-sha2-nistp256, ecdh-sha2-nistp384, ecdh-sha2-nistp521, diffie-hellman-group-exchange-sha256, diffie-hellman-group-exchange-sha1, diffie-hellman-group18-sha512, diffie-hellman-group17-sha512, diffie-hellman-group16-sha512, diffie-hellman-group15-sha512, diffie-hellman-group14-sha256, diffie-hellman-group14-sha1, rsa2048-sha256, rsa1024-sha1, diffie-hellman-group1-sha1, ext-info-c, [email protected]
DEB [20241009-10:27:39.417] thr=1   paramiko.transport: server key: rsa-sha2-512, rsa-sha2-256, ssh-rsa, ssh-ed448, ssh-ed25519, ecdsa-sha2-nistp256, ecdsa-sha2-nistp384, ecdsa-sha2-nistp521, ssh-dss
DEB [20241009-10:27:39.418] thr=1   paramiko.transport: client encrypt: aes256-ctr, aes256-cbc, [email protected], aes192-ctr, aes192-cbc, aes128-ctr, aes128-cbc, [email protected], [email protected], [email protected], 3des-ctr, 3des-cbc, blowfish-ctr, blowfish-cbc, arcfour256, arcfour128
DEB [20241009-10:27:39.418] thr=1   paramiko.transport: server encrypt: aes256-ctr, aes256-cbc, [email protected], aes192-ctr, aes192-cbc, aes128-ctr, aes128-cbc, [email protected], [email protected], [email protected], 3des-ctr, 3des-cbc, blowfish-ctr, blowfish-cbc, arcfour256, arcfour128
DEB [20241009-10:27:39.421] thr=1   paramiko.transport: client mac: hmac-sha2-256, hmac-sha2-512, hmac-sha1, hmac-sha1-96, hmac-md5, [email protected], [email protected], [email protected], [email protected], [email protected]
DEB [20241009-10:27:39.422] thr=1   paramiko.transport: server mac: hmac-sha2-256, hmac-sha2-512, hmac-sha1, hmac-sha1-96, hmac-md5, [email protected], [email protected], [email protected], [email protected], [email protected]
DEB [20241009-10:27:39.422] thr=1   paramiko.transport: client compress: none, zlib, [email protected]
DEB [20241009-10:27:39.422] thr=1   paramiko.transport: server compress: none, zlib, [email protected]
DEB [20241009-10:27:39.423] thr=1   paramiko.transport: client lang: 
DEB [20241009-10:27:39.423] thr=1   paramiko.transport: server lang: 
DEB [20241009-10:27:39.423] thr=1   paramiko.transport: kex follows: False
DEB [20241009-10:27:39.423] thr=1   paramiko.transport: === Key exchange agreements ===
DEB [20241009-10:27:39.423] thr=1   paramiko.transport: Strict kex mode: True
DEB [20241009-10:27:39.423] thr=1   paramiko.transport: Kex: [email protected]
DEB [20241009-10:27:39.424] thr=1   paramiko.transport: HostKey: rsa-sha2-512
DEB [20241009-10:27:39.424] thr=1   paramiko.transport: Cipher: aes256-ctr
DEB [20241009-10:27:39.424] thr=1   paramiko.transport: MAC: hmac-sha2-256
DEB [20241009-10:27:39.425] thr=1   paramiko.transport: Compression: none
DEB [20241009-10:27:39.425] thr=1   paramiko.transport: === End of kex handshake ===
DEB [20241009-10:27:39.441] thr=1   paramiko.transport: Resetting outbound seqno after NEWKEYS due to strict mode
DEB [20241009-10:27:39.442] thr=1   paramiko.transport: kex engine KexCurve25519 specified hash_algo 
DEB [20241009-10:27:40.907] thr=1   paramiko.transport:  Switch to new keys ...
DEB [20241009-10:27:40.914] thr=1   paramiko.transport: Resetting inbound seqno after NEWKEYS due to strict mode
DEB [20241009-10:27:40.940] thr=1   paramiko.transport: Auth request (type=none) service=ssh-connection, username=MagoLione
INF [20241009-10:27:40.940] thr=1   paramiko.transport: Auth rejected (none).
DEB [20241009-10:27:46.134] thr=1   paramiko.transport: Auth request (type=password) service=ssh-connection, username=MagoLione
INF [20241009-10:27:46.541] thr=1   paramiko.transport: Auth granted (password).
DEB [20241009-10:27:46.542] thr=1   paramiko.transport: [chan 0] Max packet in: 32768 bytes
DEB [20241009-10:27:46.542] thr=1   paramiko.transport: [chan 0] Max packet out: 16384 bytes
DEB [20241009-10:27:46.543] thr=1   paramiko.transport: Secsh channel 0 (session) opened.
DEB [20241009-10:27:46.543] thr=1   paramiko.transport: [chan 0] Unhandled channel request "[email protected]"
DEB [20241009-10:27:46.544] thr=1   paramiko.transport: EOF in transport thread
DEB [20241009-10:28:19.936] thr=2   paramiko.transport: starting thread (server mode): 0x8291b020
DEB [20241009-10:28:19.936] thr=2   paramiko.transport: Local version/idstring: SSH-2.0-paramiko_3.5.0
DEB [20241009-10:28:20.002] thr=2   paramiko.transport: Remote version/idstring: SSH-2.0-WinSCP_release_6.3.5
INF [20241009-10:28:20.002] thr=2   paramiko.transport: Connected (version 2.0, client WinSCP_release_6.3.5)
DEB [20241009-10:28:20.004] thr=2   paramiko.transport: === Key exchange possibilities ===
DEB [20241009-10:28:20.004] thr=2   paramiko.transport: kex algos: [email protected], curve448-sha512, curve25519-sha256, [email protected], ecdh-sha2-nistp256, ecdh-sha2-nistp384, ecdh-sha2-nistp521, diffie-hellman-group-exchange-sha256, diffie-hellman-group-exchange-sha1, diffie-hellman-group18-sha512, diffie-hellman-group17-sha512, diffie-hellman-group16-sha512, diffie-hellman-group15-sha512, diffie-hellman-group14-sha256, diffie-hellman-group14-sha1, rsa2048-sha256, rsa1024-sha1, diffie-hellman-group1-sha1, ext-info-c, [email protected]
DEB [20241009-10:28:20.005] thr=2   paramiko.transport: server key: rsa-sha2-512, rsa-sha2-256, ssh-rsa, ssh-ed448, ssh-ed25519, ecdsa-sha2-nistp256, ecdsa-sha2-nistp384, ecdsa-sha2-nistp521, ssh-dss
DEB [20241009-10:28:20.005] thr=2   paramiko.transport: client encrypt: aes256-ctr, aes256-cbc, [email protected], aes192-ctr, aes192-cbc, aes128-ctr, aes128-cbc, [email protected], [email protected], [email protected], 3des-ctr, 3des-cbc, blowfish-ctr, blowfish-cbc, arcfour256, arcfour128
DEB [20241009-10:28:20.006] thr=2   paramiko.transport: server encrypt: aes256-ctr, aes256-cbc, [email protected], aes192-ctr, aes192-cbc, aes128-ctr, aes128-cbc, [email protected], [email protected], [email protected], 3des-ctr, 3des-cbc, blowfish-ctr, blowfish-cbc, arcfour256, arcfour128
DEB [20241009-10:28:20.006] thr=2   paramiko.transport: client mac: hmac-sha2-256, hmac-sha2-512, hmac-sha1, hmac-sha1-96, hmac-md5, [email protected], [email protected], [email protected], [email protected], [email protected]
DEB [20241009-10:28:20.007] thr=2   paramiko.transport: server mac: hmac-sha2-256, hmac-sha2-512, hmac-sha1, hmac-sha1-96, hmac-md5, [email protected], [email protected], [email protected], [email protected], [email protected]
DEB [20241009-10:28:20.007] thr=2   paramiko.transport: client compress: none, zlib, [email protected]
DEB [20241009-10:28:20.008] thr=2   paramiko.transport: server compress: none, zlib, [email protected]
DEB [20241009-10:28:20.008] thr=2   paramiko.transport: client lang: 
DEB [20241009-10:28:20.009] thr=2   paramiko.transport: server lang: 
DEB [20241009-10:28:20.009] thr=2   paramiko.transport: kex follows: False
DEB [20241009-10:28:20.010] thr=2   paramiko.transport: === Key exchange agreements ===
DEB [20241009-10:28:20.010] thr=2   paramiko.transport: Strict kex mode: True
DEB [20241009-10:28:20.010] thr=2   paramiko.transport: Kex: [email protected]
DEB [20241009-10:28:20.011] thr=2   paramiko.transport: HostKey: rsa-sha2-512
DEB [20241009-10:28:20.011] thr=2   paramiko.transport: Cipher: aes256-ctr
DEB [20241009-10:28:20.012] thr=2   paramiko.transport: MAC: hmac-sha2-256
DEB [20241009-10:28:20.012] thr=2   paramiko.transport: Compression: none
DEB [20241009-10:28:20.012] thr=2   paramiko.transport: === End of kex handshake ===
DEB [20241009-10:28:20.018] thr=2   paramiko.transport: Resetting outbound seqno after NEWKEYS due to strict mode
DEB [20241009-10:28:20.018] thr=2   paramiko.transport:  kex engine KexCurve25519 specified hash_algo 
DEB [20241009-10:28:20.062] thr=2   paramiko.transport: Switch to new keys ...
DEB [20241009-10:28:20.062] thr=2   paramiko.transport: Resetting inbound seqno after NEWKEYS due to strict mode
DEB [20241009-10:28:20.077] thr=2   paramiko.transport: Auth request (type=none) service=ssh-connection, username=MagoLione
INF [20241009-10:28:20.077] thr=2   paramiko.transport: Auth rejected (none).
DEB [20241009-10:28:20.093] thr=2   paramiko.transport: Auth request (type=password) service=ssh-connection, username=MagoLione
INF [20241009-10:28:20.551] thr=2   paramiko.transport: Auth granted (password).
DEB [20241009-10:28:20.552] thr=2   paramiko.transport: [chan 0] Max packet in: 32768 bytes
DEB [20241009-10:28:20.553] thr=2   paramiko.transport: [chan 0] Max packet out: 16384 bytes
DEB [20241009-10:28:20.553] thr=2   paramiko.transport: Secsh channel 0 (session) opened.
DEB [20241009-10:28:20.553] thr=2   paramiko.transport: [chan 0] Unhandled channel request "[email protected]"
DEB [20241009-10:28:20.554] thr=2   paramiko.transport: EOF in transport thread

Это файл журнала клиента:

Код: Выделить всё

. 2024-10-16 10:55:04.632 Initialised AES-256 SDCTR (AES-NI accelerated) [aes256-ctr] outbound encryption
. 2024-10-16 10:55:04.632 Initialised HMAC-SHA-256 outbound MAC algorithm
. 2024-10-16 10:55:04.632 Initialised AES-256 SDCTR (AES-NI accelerated) [aes256-ctr] inbound encryption
. 2024-10-16 10:55:04.633 Initialised HMAC-SHA-256 inbound MAC algorithm
. 2024-10-16 10:55:04.633 Detected network event
. 2024-10-16 10:55:04.633 Enumerating network events for socket 3336
. 2024-10-16 10:55:04.633 Enumerated 1 network events making 1 cumulative events for socket 3336
. 2024-10-16 10:55:04.633 Handling network read event on socket 3336 with error 0
. 2024-10-16 10:55:04.633 Waiting for the server to continue with the initialization
. 2024-10-16 10:55:04.633 Looking for incoming data
. 2024-10-16 10:55:04.633 Looking for network events
. 2024-10-16 10:55:04.635 Detected network event
. 2024-10-16 10:55:04.635 Enumerating network events for socket 3336
. 2024-10-16 10:55:04.635 Enumerated 1 network events making 1 cumulative events for socket 3336
. 2024-10-16 10:55:04.636 Handling network read event on socket 3336 with error 0
. 2024-10-16 10:55:04.636 Waiting for the server to continue with the initialization
. 2024-10-16 10:55:04.636 Looking for incoming data
. 2024-10-16 10:55:04.636 Looking for network events
! 2024-10-16 10:55:04.638 Using username "MagoLione".
. 2024-10-16 10:55:04.659 Detected network event
. 2024-10-16 10:55:04.659 Enumerating network events for socket 3336
. 2024-10-16 10:55:04.659 Enumerated 1 network events making 1 cumulative events for socket 3336
. 2024-10-16 10:55:04.659 Handling network read event on socket 3336 with error 0
. 2024-10-16 10:55:04.659 Waiting for the server to continue with the initialization
. 2024-10-16 10:55:04.659 Looking for incoming data
. 2024-10-16 10:55:04.659 Looking for network events
. 2024-10-16 10:55:04.659 Server offered these authentication methods: password
. 2024-10-16 10:55:04.660 Prompt (password, "SSH password", , "&Password: ")
. 2024-10-16 10:55:04.660 Using stored password.
. 2024-10-16 10:55:04.689 Sent password
. 2024-10-16 10:55:05.379 Detected network event
. 2024-10-16 10:55:05.379 Enumerating network events for socket 3336
. 2024-10-16 10:55:05.379 Enumerated 1 network events making 1 cumulative events for socket 3336
. 2024-10-16 10:55:05.379 Handling network read event on socket 3336 with error 0
. 2024-10-16 10:55:05.379 Waiting for the server to continue with the initialization
. 2024-10-16 10:55:05.379 Looking for incoming data
. 2024-10-16 10:55:05.379 Looking for network events
. 2024-10-16 10:55:05.379 Access granted
. 2024-10-16 10:55:05.380 Opening main session channel
. 2024-10-16 10:55:05.381 Detected network event
. 2024-10-16 10:55:05.381 Enumerating network events for socket 3336
. 2024-10-16 10:55:05.381 Enumerated 1 network events making 1 cumulative events for socket 3336
. 2024-10-16 10:55:05.381 Handling network read event on socket 3336 with error 0
. 2024-10-16 10:55:05.381 Waiting for the server to continue with the initialization
. 2024-10-16 10:55:05.381 Looking for incoming data
. 2024-10-16 10:55:05.381 Looking for network events
. 2024-10-16 10:55:05.381 Opened main channel
. 2024-10-16 10:55:05.382 Detected network event
. 2024-10-16 10:55:05.382 Enumerating network events for socket 3336
.  2024-10-16 10:55:05.382 Enumerated 1 network events making 1 cumulative events for socket 3336
. 2024-10-16 10:55:05.382 Handling network read event on socket 3336 with error 0
. 2024-10-16 10:55:05.382 Waiting for the server to continue with the initialization
. 2024-10-16 10:55:05.382 Looking for incoming data
. 2024-10-16 10:55:05.382 Looking for network events
. 2024-10-16 10:55:05.382 Unable to decode terminal mode string
. 2024-10-16 10:55:05.382 Detected network event
. 2024-10-16 10:55:05.382 Enumerating network events for socket 3336
. 2024-10-16 10:55:05.382 Enumerated 1 network events making 1 cumulative events for socket 3336
. 2024-10-16 10:55:05.382 Handling network read event on socket 3336 with error 0
. 2024-10-16 10:55:05.382 Waiting for the server to continue with the initialization
. 2024-10-16 10:55:05.382 Looking for incoming data
. 2024-10-16 10:55:05.382 Looking for network events
. 2024-10-16 10:55:05.382 Primary command failed; attempting fallback
. 2024-10-16 10:55:05.383 Detected network event
. 2024-10-16 10:55:05.383 Enumerating network events for socket 3336
. 2024-10-16 10:55:05.383 Enumerated 1 network events making 1 cumulative events for socket 3336
. 2024-10-16 10:55:05.383 Handling network read event on socket 3336 with error 0
. 2024-10-16 10:55:05.383 Waiting for the server to continue with the initialization
. 2024-10-16 10:55:05.383 Looking for incoming data
. 2024-10-16 10:55:05.383 Looking for network events
. 2024-10-16 10:55:05.383 Detected network event
. 2024-10-16 10:55:05.383 Enumerating network events for socket 3336
. 2024-10-16 10:55:05.383 Enumerated 1 network events making 1 cumulative events for socket 3336
. 2024-10-16 10:55:05.383 Handling network read event on socket 3336 with error 0
. 2024-10-16 10:55:05.383 Waiting for the server to continue with the initialization
. 2024-10-16 10:55:05.383 Looking for incoming data
. 2024-10-16 10:55:05.383 Looking for network events
. 2024-10-16 10:55:05.383 Main session channel closed
. 2024-10-16 10:55:05.383 Timeout waiting for network events
. 2024-10-16 10:55:05.442 --------------------------------------------------------------------------
. 2024-10-16 10:55:05.444 Using SFTP protocol.
. 2024-10-16 10:55:05.444 Doing startup conversation with host.
. 2024-10-16 10:55:05.444 Session upkeep
. 2024-10-16 10:55:05.444 Looking for network events
. 2024-10-16 10:55:05.444 Server refused to start a shell/command
. 2024-10-16 10:55:05.444 Attempt to close connection due to fatal exception:
* 2024-10-16 10:55:05.444 Server refused to start a shell/command
. 2024-10-16 10:55:05.445 Closing connection.
. 2024-10-16 10:55:05.445 Selecting events 0 for socket 3336
* 2024-10-16 10:55:05.516 (EFatal) Server refused to start a shell/command

Я не могу понять, в чем дело. А еще потому, что я не нашел ни одного руководства, примера или исчерпывающей документации. Люди всегда используют Paramiko в качестве клиента, а не сервера, поэтому я не уверен, возможно ли это с этой библиотекой.
Как мне установить корневую папку для SFTP-сервера?

Подробнее здесь: https://stackoverflow.com/questions/790 ... onnections

1729661528

Anonymous

Я использую Paramiko для размещения SFTP-сервера с Python.
Я использую базу данных PostgreSQL для хранения учетных данных пользователей.
Эти коды сильно отличаются от того, что я использую изначально написал, потому что пытался использовать ИИ, чтобы исправить это, но это не сработало.
Я создаю класс, расширяющий paramiko.ServerInterface:
[code]class SftpServer(paramiko.ServerInterface):
def __init__(self, home_dir=None):
self.home_dir = home_dir

def check_auth_password(self, username, password):
if authenticate_user(username, password=password):
logging.debug(f"User {username} authenticated by password.")
return paramiko.AUTH_SUCCESSFUL
else:
logging.debug(f"Failed password authentication for user {username}.")
return paramiko.AUTH_FAILED

def check_auth_publickey(self, username, key):
public_key = key.get_base64()
if authenticate_user(username, public_key=public_key):
logging.debug(f"User {username} authenticated by public key.")
return paramiko.AUTH_SUCCESSFUL
else:
logging.debug(f"Failed public key authentication for user {username}.")
return paramiko.AUTH_FAILED

def check_channel_request(self, kind, chanid):
logging.debug(f"Channel request type: {kind}")
if kind == 'session':
return paramiko.OPEN_SUCCEEDED
elif kind == "[email protected]":
logging.debug(f"Non standard request recived: {kind}")
return paramiko.OPEN_SUCCEEDED
else:
logging.debug(f"Channel type not supported: {kind}")
return paramiko.OPEN_FAILED_ADMINISTRATIVELY_PROHIBITED

def check_channel_subsystem_request(self, channel, name):
logging.debug(f"Channel request type (subsystem): {name}")
if name == 'sftp':
return paramiko.OPEN_SUCCEEDED
elif name == "[email protected]":
logging.debug(f"Non standard request recived by subsystem: {name}")
return paramiko.OPEN_SUCCEEDED
return paramiko.OPEN_FAILED_ADMINISTRATIVELY_PROHIBITED

def check_channel_pty_request(self, channel, term, width, height, pixelwidth, pixelheight, modes):
logging.debug("PTY request granted.")
return True

def check_channel_shell_request(self, channel):
logging.debug("Shell request granted.")
return True

Then i use this function to handle client channels:

def handle_client(channel: paramiko.Channel, server: SftpServer):
try:
# Check if the client requested a pseudo-terminal
if channel.get_pty():
# Start interactive shell
logging.debug("PTY allocated.  Starting interactive shell.")
start_shell(channel)
else:
# If no PTY requested, start the SFTP session
logging.debug("Starting SFTP session.")
sftp_server = paramiko.SFTPServer(channel=channel, server=server, name='sftp')
sftp_server.start()

while not channel.closed:
time.sleep(1)
except paramiko.SSHException as e:
logging.error(f"SSH exception: {e}")
except Exception as e:
logging.error(f"Error handling client: {e}")
finally:
logging.debug("Closing channel.")
channel.close()

[/code]
Затем эта функция для запуска сервера:
[code]def start_sftp_server():
logging.info("Starting SFTP server...")
server_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
server_socket.settimeout(60)
server_socket.bind(('localhost', 2222))
server_socket.listen(100)

host_key = paramiko.RSAKey.generate(2048)

while True:
try:
client_socket, addr = server_socket.accept()
logging.info(f"Connection accepted from {addr}")

transport = paramiko.Transport(client_socket)
transport.add_server_key(host_key)

server = SftpServer(home_dir="C:/sftp_users")

try:
transport.start_server(server=server)
except paramiko.SSHException as e:
logging.error(f"SSH negotiation failed: {e}")
continue

channel = transport.accept(20)
if channel is None:
logging.error("No channel found")
continue

logging.info("Client authenticated, starting SFTP session.")
threading.Thread(target=handle_client, args=(channel, server)).start()

except Exception as e:
logging.error(f"An error occurred accepting the connection: {e}")
[/code]
Когда я пытаюсь подключиться к этому с помощью таких клиентов, как Filezilla или WinSCP, сервер возвращает мне ошибку:
[code]DEB [20241015-22:42:43.279] thr=2   paramiko.transport: starting thread (server mode): 0xefa33b0
DEB [20241015-22:42:43.279] thr=2   paramiko.transport: Local version/idstring: SSH-2.0-paramiko_3.5.0
DEB [20241015-22:42:43.330] thr=2   paramiko.transport: Remote version/idstring: SSH-2.0-WinSCP_release_6.3.5
INF [20241015-22:42:43.330] thr=2   paramiko.transport: Connected (version 2.0, client WinSCP_release_6.3.5)
DEB [20241015-22:42:43.334] thr=2   paramiko.transport: === Key exchange possibilities ===
DEB [20241015-22:42:43.334] thr=2   paramiko.transport: kex algos: [email protected], curve448-sha512, curve25519-sha256, [email protected], ecdh-sha2-nistp256, ecdh-sha2-nistp384, ecdh-sha2-nistp521, diffie-hellman-group-exchange-sha256, diffie-hellman-group-exchange-sha1, diffie-hellman-group18-sha512, diffie-hellman-group17-sha512, diffie-hellman-group16-sha512, diffie-hellman-group15-sha512, diffie-hellman-group14-sha256, diffie-hellman-group14-sha1, rsa2048-sha256, rsa1024-sha1, diffie-hellman-group1-sha1, ext-info-c, [email protected]
DEB [20241015-22:42:43.335] thr=2   paramiko.transport: server key: rsa-sha2-512, rsa-sha2-256, ssh-rsa, ssh-ed448, ssh-ed25519, ecdsa-sha2-nistp256, ecdsa-sha2-nistp384, ecdsa-sha2-nistp521, ssh-dss
DEB [20241015-22:42:43.335] thr=2   paramiko.transport: client encrypt: aes256-ctr, aes256-cbc, [email protected], aes192-ctr, aes192-cbc, aes128-ctr, aes128-cbc, [email protected], [email protected], [email protected], 3des-ctr, 3des-cbc, blowfish-ctr, blowfish-cbc, arcfour256, arcfour128
DEB [20241015-22:42:43.336] thr=2   paramiko.transport: server encrypt: aes256-ctr, aes256-cbc, [email protected], aes192-ctr, aes192-cbc, aes128-ctr, aes128-cbc, [email protected], [email protected], [email protected], 3des-ctr, 3des-cbc, blowfish-ctr, blowfish-cbc, arcfour256, arcfour128
DEB [20241015-22:42:43.337] thr=2   paramiko.transport: client mac: hmac-sha2-256, hmac-sha2-512, hmac-sha1, hmac-sha1-96, hmac-md5, [email protected], [email protected], [email protected], [email protected], [email protected]
DEB [20241015-22:42:43.337] thr=2   paramiko.transport: server mac:  hmac-sha2-256, hmac-sha2-512, hmac-sha1, hmac-sha1-96, hmac-md5, [email protected], [email protected], [email protected], [email protected], [email protected]
DEB [20241015-22:42:43.337] thr=2   paramiko.transport: client compress: none, zlib, [email protected]
DEB [20241015-22:42:43.338] thr=2   paramiko.transport: server compress: none, zlib, [email protected]
DEB [20241015-22:42:43.338] thr=2   paramiko.transport: client lang: 
DEB [20241015-22:42:43.338] thr=2   paramiko.transport: server lang: 
DEB [20241015-22:42:43.338] thr=2   paramiko.transport: kex follows: False
DEB [20241015-22:42:43.339] thr=2   paramiko.transport: === Key exchange agreements ===
DEB [20241015-22:42:43.339] thr=2   paramiko.transport: Strict kex mode: True
DEB [20241015-22:42:43.339] thr=2   paramiko.transport: Kex: [email protected]
DEB [20241015-22:42:43.339] thr=2   paramiko.transport: HostKey: rsa-sha2-512
DEB [20241015-22:42:43.340] thr=2   paramiko.transport: Cipher: aes256-ctr
DEB [20241015-22:42:43.340] thr=2   paramiko.transport: MAC: hmac-sha2-256
DEB [20241015-22:42:43.341] thr=2   paramiko.transport: Compression: none
DEB [20241015-22:42:43.341] thr=2   paramiko.transport: === End of kex handshake ===
DEB [20241015-22:42:43.347] thr=2   paramiko.transport: Resetting outbound seqno after NEWKEYS due to strict mode
DEB [20241015-22:42:43.347] thr=2   paramiko.transport: kex engine KexCurve25519 specified hash_algo 
DEB [20241015-22:42:43.408] thr=2   paramiko.transport: Switch to new keys ...
DEB [20241015-22:42:43.408] thr=2   paramiko.transport: Resetting inbound seqno after NEWKEYS due to strict mode
DEB [20241015-22:42:43.429] thr=2   paramiko.transport: Auth request (type=none) service=ssh-connection, username=MagoLione
INF [20241015-22:42:43.430] thr=2   paramiko.transport: Auth rejected (none).
DEB [20241015-22:42:43.456] thr=2   paramiko.transport: Auth request (type=password) service=ssh-connection, username=MagoLione
INF [20241015-22:42:43.909] thr=2   paramiko.transport: Auth granted (password).
DEB [20241015-22:42:43.910] thr=2   paramiko.transport: [chan 0] Max packet in: 32768 bytes
DEB [20241015-22:42:43.910] thr=2   paramiko.transport: [chan 0] Max packet out: 16384 bytes
DEB [20241015-22:42:43.911] thr=2   paramiko.transport: Secsh channel 0 (session) opened.
DEB [20241015-22:42:43.911] thr=2   paramiko.transport: [chan 0] Unhandled channel request "[email protected]"
DEB [20241015-22:42:43.913] thr=2   paramiko.transport: [chan 0] EOF sent (0)
ERR [20241015-22:42:43.972] thr=2   paramiko.transport: Socket exception: Connessione in corso interrotta forzatamente dall'host remoto (10054)
[/code]
Это консоль:
[code]DEBUG:root:User MagoLione authenticated by password.
INFO:paramiko.transport:Auth granted (password).
DEBUG:root:Channel request type: session
DEBUG:paramiko.transport:[chan 0] Max packet in: 32768 bytes
DEBUG:paramiko.transport:[chan 0] Max packet out: 16384 bytes
DEBUG:paramiko.transport:Secsh channel 0 (session) opened.
INFO:root:Client authenticated, starting SFTP session.
DEBUG:paramiko.transport:[chan 0] Unhandled channel request "[email protected]"
DEBUG:root:Channel request type (subsystem): sftp
DEBUG:paramiko.transport:[chan 0] EOF sent (0)
ERROR:root:SSH exception: Channel closed.
DEBUG:root:Closing channel.
DEBUG:root:Shell request granted.
ERROR:paramiko.transport:Socket exception: Connessione in corso interrotta forzatamente dall'host remoto (10054)
[/code]
И в клиенте:
[code]>  Server refused to start a shell/command
[/code]
Поэтому я попытался реализовать функциональность оболочки/команды с помощью:
[code]def start_shell(channel):
import subprocess

shell_process = subprocess.Popen(
['powershell.exe'],
stdin=subprocess.PIPE,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE
)

while True:
data = channel.recv(1024)
if not data:
break
shell_process.stdin.write(data)
shell_process.stdin.flush()

output = shell_process.stdout.read(1024)
if output:
channel.send(output)

shell_process.terminate()
[/code]
До реализации SHELL программы возвращают мне эту ошибку:
[code]DEB [20241009-10:27:39.371] thr=1   paramiko.transport: starting thread (server mode):
0xffe8a750
DEB [20241009-10:27:39.372] thr=1   paramiko.transport: Local version/idstring: SSH-2.0-paramiko_3.5.0
DEB [20241009-10:27:39.411] thr=1   paramiko.transport: Remote version/idstring: SSH-2.0-WinSCP_release_6.3.5
INF [20241009-10:27:39.411] thr=1   paramiko.transport: Connected (version 2.0, client WinSCP_release_6.3.5)
DEB [20241009-10:27:39.417] thr=1   paramiko.transport: === Key exchange possibilities ===
DEB [20241009-10:27:39.417] thr=1   paramiko.transport: kex algos: [email protected], curve448-sha512, curve25519-sha256, [email protected], ecdh-sha2-nistp256, ecdh-sha2-nistp384, ecdh-sha2-nistp521, diffie-hellman-group-exchange-sha256, diffie-hellman-group-exchange-sha1, diffie-hellman-group18-sha512, diffie-hellman-group17-sha512, diffie-hellman-group16-sha512, diffie-hellman-group15-sha512, diffie-hellman-group14-sha256, diffie-hellman-group14-sha1, rsa2048-sha256, rsa1024-sha1, diffie-hellman-group1-sha1, ext-info-c, [email protected]
DEB [20241009-10:27:39.417] thr=1   paramiko.transport: server key: rsa-sha2-512, rsa-sha2-256, ssh-rsa, ssh-ed448, ssh-ed25519, ecdsa-sha2-nistp256, ecdsa-sha2-nistp384, ecdsa-sha2-nistp521, ssh-dss
DEB [20241009-10:27:39.418] thr=1   paramiko.transport: client encrypt: aes256-ctr, aes256-cbc, [email protected], aes192-ctr, aes192-cbc, aes128-ctr, aes128-cbc, [email protected], [email protected], [email protected], 3des-ctr, 3des-cbc, blowfish-ctr, blowfish-cbc, arcfour256, arcfour128
DEB [20241009-10:27:39.418] thr=1   paramiko.transport: server encrypt: aes256-ctr, aes256-cbc, [email protected], aes192-ctr, aes192-cbc, aes128-ctr, aes128-cbc, [email protected], [email protected], [email protected], 3des-ctr, 3des-cbc, blowfish-ctr, blowfish-cbc, arcfour256, arcfour128
DEB [20241009-10:27:39.421] thr=1   paramiko.transport: client mac: hmac-sha2-256, hmac-sha2-512, hmac-sha1, hmac-sha1-96, hmac-md5, [email protected], [email protected], [email protected], [email protected], [email protected]
DEB [20241009-10:27:39.422] thr=1   paramiko.transport: server mac: hmac-sha2-256, hmac-sha2-512, hmac-sha1, hmac-sha1-96, hmac-md5, [email protected], [email protected], [email protected], [email protected], [email protected]
DEB [20241009-10:27:39.422] thr=1   paramiko.transport: client compress: none, zlib, [email protected]
DEB [20241009-10:27:39.422] thr=1   paramiko.transport: server compress: none, zlib, [email protected]
DEB [20241009-10:27:39.423] thr=1   paramiko.transport: client lang: 
DEB [20241009-10:27:39.423] thr=1   paramiko.transport: server lang: 
DEB [20241009-10:27:39.423] thr=1   paramiko.transport: kex follows: False
DEB [20241009-10:27:39.423] thr=1   paramiko.transport: === Key exchange agreements ===
DEB [20241009-10:27:39.423] thr=1   paramiko.transport: Strict kex mode: True
DEB [20241009-10:27:39.423] thr=1   paramiko.transport: Kex: [email protected]
DEB [20241009-10:27:39.424] thr=1   paramiko.transport: HostKey: rsa-sha2-512
DEB [20241009-10:27:39.424] thr=1   paramiko.transport: Cipher: aes256-ctr
DEB [20241009-10:27:39.424] thr=1   paramiko.transport: MAC: hmac-sha2-256
DEB [20241009-10:27:39.425] thr=1   paramiko.transport: Compression: none
DEB [20241009-10:27:39.425] thr=1   paramiko.transport: === End of kex handshake ===
DEB [20241009-10:27:39.441] thr=1   paramiko.transport: Resetting outbound seqno after NEWKEYS due to strict mode
DEB [20241009-10:27:39.442] thr=1   paramiko.transport: kex engine KexCurve25519 specified hash_algo 
DEB [20241009-10:27:40.907] thr=1   paramiko.transport:  Switch to new keys ...
DEB [20241009-10:27:40.914] thr=1   paramiko.transport: Resetting inbound seqno after NEWKEYS due to strict mode
DEB [20241009-10:27:40.940] thr=1   paramiko.transport: Auth request (type=none) service=ssh-connection, username=MagoLione
INF [20241009-10:27:40.940] thr=1   paramiko.transport: Auth rejected (none).
DEB [20241009-10:27:46.134] thr=1   paramiko.transport: Auth request (type=password) service=ssh-connection, username=MagoLione
INF [20241009-10:27:46.541] thr=1   paramiko.transport: Auth granted (password).
DEB [20241009-10:27:46.542] thr=1   paramiko.transport: [chan 0] Max packet in: 32768 bytes
DEB [20241009-10:27:46.542] thr=1   paramiko.transport: [chan 0] Max packet out: 16384 bytes
DEB [20241009-10:27:46.543] thr=1   paramiko.transport: Secsh channel 0 (session) opened.
DEB [20241009-10:27:46.543] thr=1   paramiko.transport: [chan 0] Unhandled channel request "[email protected]"
DEB [20241009-10:27:46.544] thr=1   paramiko.transport: EOF in transport thread
DEB [20241009-10:28:19.936] thr=2   paramiko.transport: starting thread (server mode): 0x8291b020
DEB [20241009-10:28:19.936] thr=2   paramiko.transport: Local version/idstring: SSH-2.0-paramiko_3.5.0
DEB [20241009-10:28:20.002] thr=2   paramiko.transport: Remote version/idstring: SSH-2.0-WinSCP_release_6.3.5
INF [20241009-10:28:20.002] thr=2   paramiko.transport: Connected (version 2.0, client WinSCP_release_6.3.5)
DEB [20241009-10:28:20.004] thr=2   paramiko.transport: === Key exchange possibilities ===
DEB [20241009-10:28:20.004] thr=2   paramiko.transport: kex algos: [email protected], curve448-sha512, curve25519-sha256, [email protected], ecdh-sha2-nistp256, ecdh-sha2-nistp384, ecdh-sha2-nistp521, diffie-hellman-group-exchange-sha256, diffie-hellman-group-exchange-sha1, diffie-hellman-group18-sha512, diffie-hellman-group17-sha512, diffie-hellman-group16-sha512, diffie-hellman-group15-sha512, diffie-hellman-group14-sha256, diffie-hellman-group14-sha1, rsa2048-sha256, rsa1024-sha1, diffie-hellman-group1-sha1, ext-info-c, [email protected]
DEB [20241009-10:28:20.005] thr=2   paramiko.transport: server key: rsa-sha2-512, rsa-sha2-256, ssh-rsa, ssh-ed448, ssh-ed25519, ecdsa-sha2-nistp256, ecdsa-sha2-nistp384, ecdsa-sha2-nistp521, ssh-dss
DEB [20241009-10:28:20.005] thr=2   paramiko.transport: client encrypt: aes256-ctr, aes256-cbc, [email protected], aes192-ctr, aes192-cbc, aes128-ctr, aes128-cbc, [email protected], [email protected], [email protected], 3des-ctr, 3des-cbc, blowfish-ctr, blowfish-cbc, arcfour256, arcfour128
DEB [20241009-10:28:20.006] thr=2   paramiko.transport: server encrypt: aes256-ctr, aes256-cbc, [email protected], aes192-ctr, aes192-cbc, aes128-ctr, aes128-cbc, [email protected], [email protected], [email protected], 3des-ctr, 3des-cbc, blowfish-ctr, blowfish-cbc, arcfour256, arcfour128
DEB [20241009-10:28:20.006] thr=2   paramiko.transport: client mac: hmac-sha2-256, hmac-sha2-512, hmac-sha1, hmac-sha1-96, hmac-md5, [email protected], [email protected], [email protected], [email protected], [email protected]
DEB [20241009-10:28:20.007] thr=2   paramiko.transport: server mac: hmac-sha2-256, hmac-sha2-512, hmac-sha1, hmac-sha1-96, hmac-md5, [email protected], [email protected], [email protected], [email protected], [email protected]
DEB [20241009-10:28:20.007] thr=2   paramiko.transport: client compress: none, zlib, [email protected]
DEB [20241009-10:28:20.008] thr=2   paramiko.transport: server compress: none, zlib, [email protected]
DEB [20241009-10:28:20.008] thr=2   paramiko.transport: client lang: 
DEB [20241009-10:28:20.009] thr=2   paramiko.transport: server lang: 
DEB [20241009-10:28:20.009] thr=2   paramiko.transport: kex follows: False
DEB [20241009-10:28:20.010] thr=2   paramiko.transport: === Key exchange agreements ===
DEB [20241009-10:28:20.010] thr=2   paramiko.transport: Strict kex mode: True
DEB [20241009-10:28:20.010] thr=2   paramiko.transport: Kex: [email protected]
DEB [20241009-10:28:20.011] thr=2   paramiko.transport: HostKey: rsa-sha2-512
DEB [20241009-10:28:20.011] thr=2   paramiko.transport: Cipher: aes256-ctr
DEB [20241009-10:28:20.012] thr=2   paramiko.transport: MAC: hmac-sha2-256
DEB [20241009-10:28:20.012] thr=2   paramiko.transport: Compression: none
DEB [20241009-10:28:20.012] thr=2   paramiko.transport: === End of kex handshake ===
DEB [20241009-10:28:20.018] thr=2   paramiko.transport: Resetting outbound seqno after NEWKEYS due to strict mode
DEB [20241009-10:28:20.018] thr=2   paramiko.transport:  kex engine KexCurve25519 specified hash_algo 
DEB [20241009-10:28:20.062] thr=2   paramiko.transport: Switch to new keys ...
DEB [20241009-10:28:20.062] thr=2   paramiko.transport: Resetting inbound seqno after NEWKEYS due to strict mode
DEB [20241009-10:28:20.077] thr=2   paramiko.transport: Auth request (type=none) service=ssh-connection, username=MagoLione
INF [20241009-10:28:20.077] thr=2   paramiko.transport: Auth rejected (none).
DEB [20241009-10:28:20.093] thr=2   paramiko.transport: Auth request (type=password) service=ssh-connection, username=MagoLione
INF [20241009-10:28:20.551] thr=2   paramiko.transport: Auth granted (password).
DEB [20241009-10:28:20.552] thr=2   paramiko.transport: [chan 0] Max packet in: 32768 bytes
DEB [20241009-10:28:20.553] thr=2   paramiko.transport: [chan 0] Max packet out: 16384 bytes
DEB [20241009-10:28:20.553] thr=2   paramiko.transport: Secsh channel 0 (session) opened.
DEB [20241009-10:28:20.553] thr=2   paramiko.transport: [chan 0] Unhandled channel request "[email protected]"
DEB [20241009-10:28:20.554] thr=2   paramiko.transport: EOF in transport thread
[/code]
Это файл журнала клиента:
[code]. 2024-10-16 10:55:04.632 Initialised AES-256 SDCTR (AES-NI accelerated) [aes256-ctr] outbound encryption
. 2024-10-16 10:55:04.632 Initialised HMAC-SHA-256 outbound MAC algorithm
. 2024-10-16 10:55:04.632 Initialised AES-256 SDCTR (AES-NI accelerated) [aes256-ctr] inbound encryption
. 2024-10-16 10:55:04.633 Initialised HMAC-SHA-256 inbound MAC algorithm
. 2024-10-16 10:55:04.633 Detected network event
. 2024-10-16 10:55:04.633 Enumerating network events for socket 3336
. 2024-10-16 10:55:04.633 Enumerated 1 network events making 1 cumulative events for socket 3336
. 2024-10-16 10:55:04.633 Handling network read event on socket 3336 with error 0
. 2024-10-16 10:55:04.633 Waiting for the server to continue with the initialization
. 2024-10-16 10:55:04.633 Looking for incoming data
. 2024-10-16 10:55:04.633 Looking for network events
. 2024-10-16 10:55:04.635 Detected network event
. 2024-10-16 10:55:04.635 Enumerating network events for socket 3336
. 2024-10-16 10:55:04.635 Enumerated 1 network events making 1 cumulative events for socket 3336
. 2024-10-16 10:55:04.636 Handling network read event on socket 3336 with error 0
. 2024-10-16 10:55:04.636 Waiting for the server to continue with the initialization
. 2024-10-16 10:55:04.636 Looking for incoming data
. 2024-10-16 10:55:04.636 Looking for network events
! 2024-10-16 10:55:04.638 Using username "MagoLione".
. 2024-10-16 10:55:04.659 Detected network event
. 2024-10-16 10:55:04.659 Enumerating network events for socket 3336
. 2024-10-16 10:55:04.659 Enumerated 1 network events making 1 cumulative events for socket 3336
. 2024-10-16 10:55:04.659 Handling network read event on socket 3336 with error 0
. 2024-10-16 10:55:04.659 Waiting for the server to continue with the initialization
. 2024-10-16 10:55:04.659 Looking for incoming data
. 2024-10-16 10:55:04.659 Looking for network events
. 2024-10-16 10:55:04.659 Server offered these authentication methods: password
. 2024-10-16 10:55:04.660 Prompt (password, "SSH password", , "&Password: ")
. 2024-10-16 10:55:04.660 Using stored password.
. 2024-10-16 10:55:04.689 Sent password
. 2024-10-16 10:55:05.379 Detected network event
. 2024-10-16 10:55:05.379 Enumerating network events for socket 3336
. 2024-10-16 10:55:05.379 Enumerated 1 network events making 1 cumulative events for socket 3336
. 2024-10-16 10:55:05.379 Handling network read event on socket 3336 with error 0
. 2024-10-16 10:55:05.379 Waiting for the server to continue with the initialization
. 2024-10-16 10:55:05.379 Looking for incoming data
. 2024-10-16 10:55:05.379 Looking for network events
. 2024-10-16 10:55:05.379 Access granted
. 2024-10-16 10:55:05.380 Opening main session channel
. 2024-10-16 10:55:05.381 Detected network event
. 2024-10-16 10:55:05.381 Enumerating network events for socket 3336
. 2024-10-16 10:55:05.381 Enumerated 1 network events making 1 cumulative events for socket 3336
. 2024-10-16 10:55:05.381 Handling network read event on socket 3336 with error 0
. 2024-10-16 10:55:05.381 Waiting for the server to continue with the initialization
. 2024-10-16 10:55:05.381 Looking for incoming data
. 2024-10-16 10:55:05.381 Looking for network events
. 2024-10-16 10:55:05.381 Opened main channel
. 2024-10-16 10:55:05.382 Detected network event
. 2024-10-16 10:55:05.382 Enumerating network events for socket 3336
.  2024-10-16 10:55:05.382 Enumerated 1 network events making 1 cumulative events for socket 3336
. 2024-10-16 10:55:05.382 Handling network read event on socket 3336 with error 0
. 2024-10-16 10:55:05.382 Waiting for the server to continue with the initialization
. 2024-10-16 10:55:05.382 Looking for incoming data
. 2024-10-16 10:55:05.382 Looking for network events
. 2024-10-16 10:55:05.382 Unable to decode terminal mode string
. 2024-10-16 10:55:05.382 Detected network event
. 2024-10-16 10:55:05.382 Enumerating network events for socket 3336
. 2024-10-16 10:55:05.382 Enumerated 1 network events making 1 cumulative events for socket 3336
. 2024-10-16 10:55:05.382 Handling network read event on socket 3336 with error 0
. 2024-10-16 10:55:05.382 Waiting for the server to continue with the initialization
. 2024-10-16 10:55:05.382 Looking for incoming data
. 2024-10-16 10:55:05.382 Looking for network events
. 2024-10-16 10:55:05.382 Primary command failed; attempting fallback
. 2024-10-16 10:55:05.383 Detected network event
. 2024-10-16 10:55:05.383 Enumerating network events for socket 3336
. 2024-10-16 10:55:05.383 Enumerated 1 network events making 1 cumulative events for socket 3336
. 2024-10-16 10:55:05.383 Handling network read event on socket 3336 with error 0
. 2024-10-16 10:55:05.383 Waiting for the server to continue with the initialization
. 2024-10-16 10:55:05.383 Looking for incoming data
. 2024-10-16 10:55:05.383 Looking for network events
. 2024-10-16 10:55:05.383 Detected network event
. 2024-10-16 10:55:05.383 Enumerating network events for socket 3336
. 2024-10-16 10:55:05.383 Enumerated 1 network events making 1 cumulative events for socket 3336
. 2024-10-16 10:55:05.383 Handling network read event on socket 3336 with error 0
. 2024-10-16 10:55:05.383 Waiting for the server to continue with the initialization
. 2024-10-16 10:55:05.383 Looking for incoming data
. 2024-10-16 10:55:05.383 Looking for network events
. 2024-10-16 10:55:05.383 Main session channel closed
. 2024-10-16 10:55:05.383 Timeout waiting for network events
. 2024-10-16 10:55:05.442 --------------------------------------------------------------------------
. 2024-10-16 10:55:05.444 Using SFTP protocol.
. 2024-10-16 10:55:05.444 Doing startup conversation with host.
. 2024-10-16 10:55:05.444 Session upkeep
. 2024-10-16 10:55:05.444 Looking for network events
. 2024-10-16 10:55:05.444 Server refused to start a shell/command
. 2024-10-16 10:55:05.444 Attempt to close connection due to fatal exception:
* 2024-10-16 10:55:05.444 Server refused to start a shell/command
. 2024-10-16 10:55:05.445 Closing connection.
. 2024-10-16 10:55:05.445 Selecting events 0 for socket 3336
* 2024-10-16 10:55:05.516 (EFatal) Server refused to start a shell/command
[/code]
Я не могу понять, в чем дело. А еще потому, что я не нашел ни одного руководства, примера или исчерпывающей документации. Люди всегда используют Paramiko в качестве клиента, а не сервера, поэтому я не уверен, возможно ли это с этой библиотекой.
Как мне установить корневую папку для SFTP-сервера?
 

Подробнее здесь: [url]https://stackoverflow.com/questions/79091700/sftp-server-in-python-with-paramiko-does-not-allow-sftp-connections[/url]

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SFTP-сервер на Python с Paramiko не разрешает SFTP-соединения

Последнее сообщение Anonymous « 06 ноя 2024, 13:21
Добавлено в форуме Python

Anonymous » 06 ноя 2024, 13:21 » в форуме Python

Я переписал вопрос, потому что он не поместился ниже.
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Последнее сообщение Anonymous
06 ноя 2024, 13:21
SFTP-сервер на Python с Paramiko не разрешает SFTP-соединения

Последнее сообщение Anonymous « 30 ноя 2024, 22:32
Добавлено в форуме Python

Anonymous » 30 ноя 2024, 22:32 » в форуме Python

Я переписал вопрос, потому что он не поместился ниже.
Я пытаюсь использовать библиотеку paramiko на Python для настройки SFTP-сервера.
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Последнее сообщение Anonymous
30 ноя 2024, 22:32
SFTP-сервер на Python с Paramiko не разрешает SFTP-соединения

Последнее сообщение Anonymous « 03 дек 2024, 19:13
Добавлено в форуме Python

Anonymous » 03 дек 2024, 19:13 » в форуме Python

Я переписал вопрос, потому что он не поместился ниже.
Я пытаюсь использовать библиотеку paramiko на Python для настройки SFTP-сервера.
Я начинаю определять ROOT_FOLDER для пути к желаемой папке.
Затем я расширяю paramiko.SFTPServerInteface:
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Последнее сообщение Anonymous
03 дек 2024, 19:13
SFTP-сервер на Python с Paramiko не разрешает SFTP-соединения

Последнее сообщение Anonymous « 25 янв 2025, 18:58
Добавлено в форуме Python

Anonymous » 25 янв 2025, 18:58 » в форуме Python

Я переписал вопрос, потому что он не подходил внизу. Я начинаю определять root_folder по пути моего желаю. PrettyPrint-Override > class SFTPServer(paramiko.SFTPServerInterface):
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Последнее сообщение Anonymous
25 янв 2025, 18:58
Возобновить загрузку SFTP после сбоя соединения (pysftp/paramiko)

Последнее сообщение Anonymous « 26 июн 2024, 08:21
Добавлено в форуме Python

Anonymous » 26 июн 2024, 08:21 » в форуме Python

Я пытаюсь создать простой SFTP-клиент, используя pysftp/paramiko.
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Последнее сообщение Anonymous
26 июн 2024, 08:21

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