100 lines
1.4 KiB
Ruby
100 lines
1.4 KiB
Ruby
require 'rex/ui'
|
|
|
|
module Rex
|
|
module Ui
|
|
module Text
|
|
|
|
###
|
|
#
|
|
# This class implements input against a socket.
|
|
#
|
|
###
|
|
class Input::Socket < Rex::Ui::Text::Input
|
|
|
|
def initialize(sock)
|
|
@sock = sock
|
|
end
|
|
|
|
#
|
|
# Sockets do not currently support readline.
|
|
#
|
|
def supports_readline
|
|
false
|
|
end
|
|
|
|
#
|
|
# Reads input from the raw socket.
|
|
#
|
|
def sysread(len = 1)
|
|
@sock.sysread(1)
|
|
end
|
|
|
|
#
|
|
# Wait for a line of input to be read from a socket.
|
|
#
|
|
def gets
|
|
|
|
# Initialize the line buffer
|
|
line = ''
|
|
|
|
# Read data one byte at a time until we see a LF
|
|
while (true)
|
|
|
|
break if line.include?("\n")
|
|
|
|
# Read another character of input
|
|
char = @sock.getc
|
|
|
|
# Telnet sends 0x04 as EOF
|
|
if (char == 4)
|
|
@sock.write("[*] Caught ^D, closing the socket...\n")
|
|
@sock.close
|
|
return
|
|
end
|
|
|
|
# Append this character to the string
|
|
line << char
|
|
|
|
# Handle telnet sequences
|
|
case line
|
|
when /\xff\xf4\xff\xfd\x06/
|
|
@sock.write("[*] Caught ^C, closing the socket...\n")
|
|
@sock.close
|
|
return
|
|
|
|
when /\xff\xed\xff\xfd\x06/
|
|
@sock.write("[*] Caught ^Z\n")
|
|
return
|
|
end
|
|
end
|
|
|
|
return line
|
|
end
|
|
|
|
#
|
|
# Print a prompt and flush to the socket.
|
|
#
|
|
def _print_prompt(prompt)
|
|
@sock.write(prompt)
|
|
@sock.flush
|
|
end
|
|
|
|
#
|
|
# Returns whether or not EOF has been reached on stdin.
|
|
#
|
|
def eof?
|
|
@sock.closed?
|
|
end
|
|
|
|
#
|
|
# Returns the file descriptor associated with a socket.
|
|
#
|
|
def fd
|
|
return @sock
|
|
end
|
|
end
|
|
|
|
end
|
|
end
|
|
end
|