<? Php
Class FSSH {
Private $ conn;
Private $ shell; /**
* Key = String password authentication, key = array ('pub' =>, 'pri '=>, 'type' =>, 'phrase' =>) key Authentication
* Two key authentication types are available: ssh-rsa and ssh-dss.
* $ Host [addr] = String address, $ host ['fp '] = array () server fingerprint
*/
Function _ construct ($ host, $ user, $ key ){
If (empty ($ host ['addr ']) {
Debug_print ('host cant't be empty', E_USER_ERROR );
}
If (empty ($ host ['fp']) {
Debug_print ('finger print is not specified ', E_USER_ERROR );
}
$ This-> stdin = fopen ('php: // stdin ', 'R ');
$ This-> stdout = fopen ('php: // stdout', 'w ');
If (false! = Strpos ($ host ['addr '],': ') {
$ Temp = explode (':', $ host ['addr ']);
$ Host ['addr '] = $ temp [0];
$ Port = $ temp [1];
} Else {
$ Port = 22;
}
If (is_string ($ key) | empty ($ key ['type']) {
$ Methods = null;
} Else {
$ Methods = array ('hostkey' => $ key ['type']);
}
$ Conn = ssh2_connect ($ host ['addr '], $ port, $ methods, array ('disconnect' => array ($ this, 'disconnect ')));
$ Fp = ssh2_fingerprint ($ conn, SSH2_FINGERPRINT_MD5 );
$ Success = false;
$ FpOK = false;
If (in_array ($ fp, $ host ['fp ']) {
$ FpOK = true;
} Else {
Fwrite ($ this-> stdout, "$ fpnIs fingerprint OK? (Y/n )");
$ Input = strtolower (stream_get_line ($ this-> stdin, 1 ));
If ($ input = 'y '){
$ FpOK = true;
} Else {
$ FpOK = false;
}
}
If ($ fpOK ){
If (is_array ($ key )){
If (ssh2_auth_pubkey_file ($ conn, $ user, $ key ['pub'], $ key ['pri '], $ key ['phrase']) {
$ Success = true;
} Else {
Debug_print ('Public Key Authentication failed', E_USER_ERROR );
}
} Elseif (is_string ($ key )){
If (ssh2_auth_password ($ conn, $ user, $ key )){
$ Success = true;
} Else {
Debug_print ('password Authentication failed', E_USER_ERROR );
}
}
} Else {
Debug_print ('fingerprint is invalid', E_USER_ERROR );
}
If ($ success ){
$ This-> conn = $ conn;
$ This-> shell = ssh2_shell ($ conn, null, null, 1024 );
}
Return $ success;
} Function shell (){
// The Last Command
$ Last = '';
// End shell first and then while
$ SignalTerminate = false;
While (true ){
$ Cmd = $ this-> fread ($ this-> stdin );
$ Out = stream_get_contents ($ this-& gt; shell, 1024 );
If (! Empty ($ out) and! Empty ($ last )){
$ L1 = strlen ($ out );
$ L2 = strlen ($ last );
$ L = $ l1> $ l2? $ L2: $ l1;
$ Last = substr ($ last, $ l );
$ Out = substr ($ out, $ l );
}
Echo ltrim ($ out );
If ($ signalTerminate ){
Break;
}
If (in_array (trim ($ cmd), array ('exit '))){
$ SignalTerminate = true;
}
If (! Empty ($ cmd )){
$ Last = $ cmd;
Fwrite ($ this-> shell, $ cmd );
}
}
} // There is no other way to solve the problem of reading windows command lines.
Private function fread ($ fd ){
Static $ data = '';
$ Read = array ($ fd );
$ Write = array ();
$ Response T = array ();
$ Result = stream_select ($ read, $ write, $ hour T );
If ($ result = false)
Debug_print ('stream _ select failed', E_USER_ERROR );
If ($ result! = 0 ){
$ C = stream_get_line ($ fd, 1 );
If ($ c! = Chr (13 ))
$ Data. = $ c;
If ($ c = chr (10 )){
$ T = $ data;
$ Data = '';
Return $ t;
}
}
} Function _ destruct (){
Fclose ($ this-> stdin );
Fclose ($ this-> stdout );
$ This-> disconnect ();
} Private function disconnect (){
If (is_resource ($ this-> conn )){
Unset ($ this-> conn );
Fclose ($ this-> shell );
}
}
} |
