def handle_tcp_https(socket, dstport): plaintext_socket = switchtossl(socket) if plaintext_socket: handle_tcp_http(plaintext_socket, dstport) else: socket.close()
def handle_tcp_hexdump_ssl(socket, dstport):
socket = switchtossl(socket)
if socket:
handle_tcp_hexdump(socket, dstport)
else:
print("SSL handshake failed")
def handle_tcp_smtp(plaintext_socket, dstport):
socket = TextChannel(plaintext_socket)
tls_started = False
ctr = 0.5
msg_from = ''
msg_to = []
try:
socket.send("220 localhost ESMTP server ready\n")
while True:
cmd = readline(socket)
cmdupper = cmd.upper() if cmd else None
time.sleep(ctr) # Rate limit
ctr *= 1.1
if not cmd or not cmd.endswith('\n'):
raise Exception('Invalid request')
elif cmdupper.startswith('HELO'):
socket.send("250 localhost\n")
elif cmdupper.startswith('EHLO'):
socket.send(
"250-localhost offers TWO extensions:\n250-8BITMIME\n250 STARTTLS\n"
)
elif cmdupper.startswith('STARTTLS'):
if tls_started:
socket.send(
"454 TLS not available due to temporary reason\n")
else:
tls_started = True
socket.send("220 Go ahead\n")
socket = TextChannel(switchtossl(plaintext_socket))
elif cmdupper.startswith('QUIT'):
socket.send("221 localhost ESMTP server closing connection\n")
break
elif cmdupper.startswith('NOOP'):
socket.send("250 No-op Ok\n")
elif cmdupper.startswith('RSET'):
msg_from = ''
msg_to = []
socket.send("250 Reset Ok\n")
elif cmdupper.startswith('DATA'):
socket.send("354 Ok Send data ending with <CRLF>.<CRLF>\n")
msg_contents = receive_data(socket)
msg_id = uuid.uuid4().hex
store_email(plaintext_socket.getpeername()[0], msg_id,
msg_contents, msg_from, msg_to)
socket.send(
"250 Message received: {}@localhost\n".format(msg_id))
elif cmdupper.startswith('MAIL FROM:') or cmdupper.startswith(
'SEND FROM:') or cmdupper.startswith(
'SOML FROM:') or cmdupper.startswith('SAML FROM:'):
msg_from = cmd[len('MAIL FROM:'):].strip()
socket.send("250 Sender: {} Ok\n".format(msg_from))
elif cmdupper.startswith('RCPT TO:'):
recipient = cmd[len('RCPT TO:'):].strip()
msg_to.append(recipient)
socket.send("250 Recipient: {} Ok\n".format(recipient))
else:
socket.send("502 Command not implemented\n")
except Exception as err:
#print(traceback.format_exc())
pass
try:
print("-- SMTP TRANSPORT CLOSED --")
socket.close()
except:
pass
def handle_tcp_https(socket, dsthost, dstport, persona):
plaintext_socket = switchtossl(socket)
if plaintext_socket:
handle_tcp_http(plaintext_socket, dsthost, dstport, persona)
else:
socket.close()
def handle_tcp_hexdump_ssl(socket, dstport):
socket = switchtossl(socket)
if socket:
handle_tcp_hexdump(socket, dstport)
else:
print("SSL handshake failed")
def handle_tcp_smtp(plaintext_socket, dstport):
socket = TextChannel(plaintext_socket)
tls_started = False
ctr = 0.5
msg_from = ''
msg_to = []
try:
socket.send("220 localhost ESMTP server ready\n")
while True:
cmd = readline(socket)
cmdupper = cmd.upper() if cmd else None
time.sleep(ctr) # Rate limit
ctr *= 1.1
if not cmd or not cmd.endswith('\n'):
raise Exception('Invalid request')
elif cmdupper.startswith('HELO'):
socket.send("250 localhost\n")
elif cmdupper.startswith('EHLO'):
socket.send("250-localhost offers TWO extensions:\n250-8BITMIME\n250 STARTTLS\n")
elif cmdupper.startswith('STARTTLS'):
if tls_started:
socket.send("454 TLS not available due to temporary reason\n")
else:
tls_started = True
socket.send("220 Go ahead\n")
socket = TextChannel(switchtossl(plaintext_socket))
elif cmdupper.startswith('QUIT'):
socket.send("221 localhost ESMTP server closing connection\n")
break
elif cmdupper.startswith('NOOP'):
socket.send("250 No-op Ok\n")
elif cmdupper.startswith('RSET'):
msg_from = ''
msg_to = []
socket.send("250 Reset Ok\n")
elif cmdupper.startswith('DATA'):
socket.send("354 Ok Send data ending with <CRLF>.<CRLF>\n")
msg_contents = receive_data(socket)
msg_id = uuid.uuid4().hex
store_email(plaintext_socket.getpeername()[0], msg_id, msg_contents, msg_from, msg_to)
socket.send("250 Message received: {}@localhost\n".format(msg_id))
elif cmdupper.startswith('MAIL FROM:') or cmdupper.startswith('SEND FROM:') or cmdupper.startswith('SOML FROM:') or cmdupper.startswith('SAML FROM:'):
msg_from = cmd[len('MAIL FROM:'):].strip()
socket.send("250 Sender: {} Ok\n".format(msg_from))
elif cmdupper.startswith('RCPT TO:'):
recipient = cmd[len('RCPT TO:'):].strip()
msg_to.append(recipient)
socket.send("250 Recipient: {} Ok\n".format(recipient))
else:
socket.send("502 Command not implemented\n")
except Exception as err:
#print(traceback.format_exc())
pass
try:
print("-- SMTP TRANSPORT CLOSED --")
socket.close()
except:
pass
