I need to write a PHP script to telnet to a router, run a command and fetch the results. does anyone know a telnet connection library in PHP?
Update: This request (as is obvious) was for a long time ago. In the end I had to write the client library that I needed myself. The code for this library (and many more modules) is open source and available on github. Thanks everyone for your answers.
using stdin/stream_select & blocking streams gives you a 20 lines telnet like client
<?
$socket = fsockopen("192.168.52.1", 8000);
if(!$socket)return;
stream_set_blocking($socket, 0);
stream_set_blocking(STDIN, 0);
do {
echo "$ ";
$read = array( $socket, STDIN); $write = NULL; $except = NULL;
if(!is_resource($socket)) return;
$num_changed_streams = @stream_select($read, $write, $except, null);
if(feof($socket)) return ;
if($num_changed_streams === 0) continue;
if (false === $num_changed_streams) {
/* Error handling */
var_dump($read);
echo "Continue\n";
die;
} elseif ($num_changed_streams > 0) {
echo "\r";
$data = fread($socket, 4096);
if($data !== "")
echo "<<< $data";
$data2 = fread(STDIN, 4096);
if($data2 !== "") {
echo ">>> $data2";
fwrite($socket, trim($data2));
}
}
} while(true);
Pear::Net_Socket: http://pear.php.net/package/Net_Socket Extend this class for a simple PHP telnet bot or session.
<?php
$file = 'somefile.txt';
$remote_file = 'readme.txt';
// set up basic connection
$ftp_server = '127.0.0.1';
$ftp_user_name = 'Till';
$ftp_user_pass = 'Kcp05';
$conn_id = ftp_connect($ftp_server);
// login with username and password
ftp_login($conn_id, $ftp_user_name, $ftp_user_pass);
// upload a file
ftp_nb_put($conn_id, $remote_file, $file, FTP_ASCII);
// close the connection
echo "$file sent to $ftp_server as $remote_file\n<br/>";
ftp_close($conn_id);
// finished copying the input.dat to the till now, just need to execute the print command.
// That will copy somefile.txt in the same folder as this .php file to the ftp server root dir.
$header1=chr(0xFF).chr(0xFB).chr(0x1F).chr(0xFF).chr(0xFB).chr(0x20).chr(0xFF).chr(0xFB).chr(0x18).chr(0xFF).chr(0xFB).chr(0x27).chr(0xFF).chr(0xFD).chr(0x01).chr(0xFF).chr(0xFB).chr(0x03).chr(0xFF).chr(0xFD).chr(0x03).chr(0xFF).chr(0xFC).chr(0x23).chr(0xFF).chr(0xFC).chr(0x24).chr(0xFF).chr(0xFA).chr(0x1F).chr(0x00).chr(0x50).chr(0x00).chr(0x18).chr(0xFF).chr(0xF0).chr(0xFF).chr(0xFA).chr(0x20).chr(0x00).chr(0x33).chr(0x38).chr(0x34).chr(0x30).chr(0x30).chr(0x2C).chr(0x33).chr(0x38).chr(0x34).chr(0x30).chr(0x30).chr(0xFF).chr(0xF0).chr(0xFF).chr(0xFA).chr(0x27).chr(0x00).chr(0xFF).chr(0xF0).chr(0xFF).chr(0xFA).chr(0x18).chr(0x00).chr(0x58).chr(0x54).chr(0x45).chr(0x52).chr(0x4D).chr(0xFF).chr(0xF0);
$fp=pfsockopen("127.0.0.1",23);
echo "Telnet session opening ...";
sleep(4);
fputs($fp,$header1);
sleep(4);
fputs($fp,"Till\r");
sleep(2);
fputs($fp,"Kcp05\r");
sleep(2);
fputs($fp,"notepad\r");
sleep(3);
echo "Telnet session closing ...";
fclose($fp);
?>
that worked for me. the first part will upload the ftp file to the server, and the second part will lo onto the telnet server, and execute a program that can use the file you just uploaded by ftp. tested it just now.
There is a lovely class available for PHP telnet connectivity on Nicholas Hall's Github: https://github.com/ngharo/Random-PHP-Classes/blob/master/Telnet.class.php
