use PVE::Tools;
use PVE::JSONSchema qw(get_standard_option);
use PVE::CLIHandler;
+use PVE::PTY;
use base qw(PVE::CLIHandler);
use PVE::APIClient::Config;
return ($payload, $req_close);
};
+my $client_exit = sub {
+ my ($select, $web_socket, $old_termios) = @_;
+
+ foreach my $fh ($select->handles) {
+ $select->remove($fh);
+
+ if ($fh == $web_socket) {
+ if ($fh->connected) {
+
+ # close connection
+ # Opcode, mask, statuscode
+ my $msg = "\x88" . pack('N', 0) . pack('n', 0);
+ $fh->syswrite($msg);
+ close($fh);
+ }
+ }
+
+ }
+
+ # switch back to blocking mode (else later shell commands will fail).
+ STDIN->blocking(0);
+
+ #
+ # Reset the terminal parameters.
+ #
+ print "\e[24H\r\n";
+ PVE::PTY::tcsetattr(*STDIN, $old_termios);
+};
+
__PACKAGE__->register_method ({
name => 'enter',
path => 'enter',
my $frame = $create_websockt_frame->($termproxy->{user} . ":" . $termproxy->{ticket} . "\n");
$web_socket->syswrite($frame);
+ # Send resize command
+ my ($columns, $rows) = PVE::PTY::tcgetsize(*STDIN);
+ $frame = $create_websockt_frame->("1:$columns:$rows:");
+ $web_socket->syswrite($frame);
+
+ # Set STDIN to "raw -echo" mode
+ my $old_termios = PVE::PTY::tcgetattr(*STDIN);
+ my $raw_termios = {%$old_termios};
+ PVE::PTY::cfmakeraw($raw_termios);
+ PVE::PTY::tcsetattr(*STDIN, $raw_termios);
+
+ # And set it to non-blocking so we can every char with IO::Select.
+ STDIN->blocking(0);
+
my $select = IO::Select->new;
$web_socket->blocking(0);
$select->add($web_socket);
+ $select->add(fileno(STDIN));
+
+ my @messages;
+ my $ctrl_a_pressed_before = 0;
+ my $next_ping = time() + 3;
+
+ eval {
+ while (1) {
+ # Ping server every 3 seconds.
+ my $now = time();
+ if ($now >= $next_ping) {
+ push(@messages, $create_websockt_frame->("2"));
+ $next_ping = $now + 3;
+ }
- while(my @ready = $select->can_read) {
- foreach my $fh (@ready) {
- if ($fh == $web_socket) {
- my $nr = $wb_socket_read_available_bytes->();
- my ($payload, $req_close) = $parse_web_socket_frame->(\$wsbuf);
- print "GOT: $payload\n" if defined($payload);
- last if $req_close;
- last if !$nr; # eos
- } else {
- die "internal error - unknown handle";
+ # Write
+ foreach my $fh ($select->can_write(0.5)) {
+ if ($fh == $web_socket and my $msg = shift @messages) {
+ $fh->syswrite($msg, length($msg));
+ }
+ }
+
+ # Read
+ foreach my $fh ($select->can_read(0.5)) {
+
+ # From Web Socket
+ if ($fh == $web_socket) {
+ # Read from WebSocket
+ my $nr = $wb_socket_read_available_bytes->();
+ my ($payload, $req_close) = $parse_web_socket_frame->(\$wsbuf);
+
+ if ($payload ne "OK") {
+ syswrite(\*STDOUT, $payload, length($payload));
+ }
+ }
+
+ # From STDIN
+ elsif ($fh == fileno(STDIN)) {
+
+ # Read from STDIN
+ my $nr = read(\*STDIN, my $buff, 4096);
+ if (!$nr) {
+ next;
+ }
+
+ my $char = ord($buff);
+
+ if ($ctrl_a_pressed_before == 1 && $char == hex("0x71")) {
+ $client_exit->($select, $web_socket, $old_termios);
+ return;
+ }
+
+ if ($char == hex("0x01")) {
+ if ($ctrl_a_pressed_before == 0) {
+ $ctrl_a_pressed_before = 1;
+ }
+ }
+ else {
+ $ctrl_a_pressed_before = 0;
+ }
+
+ push(@messages, $create_websockt_frame->("0:" . $nr . ":" . $buff));
+ }
}
}
- }
+ };
+ print "ERROR: " . $@ . ".\n" if $@;
+
+ $client_exit->($select, $web_socket, $old_termios);
+ return undef
}});
__PACKAGE__->register_method ({