use strict;
use warnings;
+use JSON;
+use URI::Escape;
+use IO::Select;
+use IO::Socket::SSL;
+use MIME::Base64;
+use Digest::SHA;
+use PVE::Tools;
+use PVE::JSONSchema qw(get_standard_option);
use PVE::CLIHandler;
use base qw(PVE::CLIHandler);
+use PVE::APIClient::Config;
+
+my $CRLF = "\x0D\x0A";
+my $max_payload_size = 65536;
+
+my $build_web_socket_request = sub {
+ my ($path, $ticket, $termproxy) = @_;
+
+ my $key = '';
+ $key .= chr(int(rand(256))) for 1 .. 16;
+ my $enckey = MIME::Base64::encode_base64($key, '');
+
+ my $encticket = uri_escape($ticket);
+ my $cookie = "PVEAuthCookie=$encticket; path=/; secure;";
+
+ $path .= "?port=$termproxy->{port}" .
+ "&vncticket=" . uri_escape($termproxy->{ticket});
+
+ my $request = "GET $path HTTP/1.1$CRLF"
+ . "Upgrade: WebSocket$CRLF"
+ . "Connection: Upgrade$CRLF"
+ . "Sec-WebSocket-Key: $enckey$CRLF"
+ . "Sec-WebSocket-Version: 13$CRLF"
+ . "Sec-WebSocket-Protocol: binary$CRLF"
+ . "Cookie: $cookie$CRLF"
+ . "$CRLF";
+
+ return ($request, $enckey);
+};
+
+# FIXME: share this code with websockt code in PVE/APIServer/AnyEvent.pm ?
+my $create_websockt_frame = sub {
+ my ($payload) = @_;
+
+ my $string = "\x82"; # binary frame
+ my $payload_len = length($payload);
+ if ($payload_len <= 125) {
+ $string .= pack 'C', $payload_len | 128;
+ } elsif ($payload_len <= 0xffff) {
+ $string .= pack 'C', 126 | 128;
+ $string .= pack 'n', $payload_len;
+ } else {
+ $string .= pack 'C', 127 | 128;
+ $string .= pack 'Q>', $payload_len;
+ }
+
+ $string .= pack 'N', 0; # we simply use 0 as mask
+ $string .= $payload;
+
+ return $string;
+};
+
+# FIXME: share this code with websockt code in PVE/APIServer/AnyEvent.pm ?
+my $parse_web_socket_frame = sub {
+ my ($wsbuf_ref, $binary, $is_server) = @_;
+
+ my $wsbuf = $$wsbuf_ref;
+
+ my $payload;
+ my $req_close = 0;
+
+ while (my $len = length($wsbuf)) {
+ last if $len < 2;
+
+ my $hdr = unpack('C', substr($wsbuf, 0, 1));
+ my $opcode = $hdr & 0b00001111;
+ my $fin = $hdr & 0b10000000;
+
+ die "received fragmented websocket frame\n" if !$fin;
+
+ my $rsv = $hdr & 0b01110000;
+ die "received websocket frame with RSV flags\n" if $rsv;
+
+ my $payload_len = unpack 'C', substr($wsbuf, 1, 1);
+
+ my $masked = $payload_len & 0b10000000;
+ if ($is_server) {
+ die "received unmasked websocket frame from client\n" if !$masked;
+ } else {
+ die "received masked websocket frame from server\n" if $masked;
+ }
+
+ my $offset = 2;
+ $payload_len = $payload_len & 0b01111111;
+ if ($payload_len == 126) {
+ last if $len < 4;
+ $payload_len = unpack('n', substr($wsbuf, $offset, 2));
+ $offset += 2;
+ } elsif ($payload_len == 127) {
+ last if $len < 10;
+ $payload_len = unpack('Q>', substr($wsbuf, $offset, 8));
+ $offset += 8;
+ }
+
+ die "received too large websocket frame (len = $payload_len)\n"
+ if ($payload_len > $max_payload_size) || ($payload_len < 0);
+
+ my @mask = (0, 0, 0, 0);
+ if ($masked) {
+ last if $len < $offset + 4;
+
+ @mask = (unpack('C', substr($wsbuf, $offset+0, 1)),
+ unpack('C', substr($wsbuf, $offset+1, 1)),
+ unpack('C', substr($wsbuf, $offset+2, 1)),
+ unpack('C', substr($wsbuf, $offset+3, 1)));
+
+ $offset += 4;
+ }
+
+ last if $len < ($offset + $payload_len);
+
+ my $data = substr($wsbuf, 0, $offset + $payload_len, ''); # now consume data
+
+ my $frame_data = substr($data, $offset, $payload_len);
+
+ if ($masked) {
+ for (my $i = 0; $i < $payload_len; $i++) {
+ my $d = unpack('C', substr($frame_data, $i, 1));
+ my $n = $d ^ $mask[$i % 4];
+ substr($frame_data, $i, 1, pack('C', $n));
+ }
+ }
+
+ $frame_data = decode_base64($frame_data) if !$binary;
+
+ $payload = '' if !defined($payload);
+ $payload .= $frame_data;
+
+ if ($opcode == 1 || $opcode == 2) {
+ # continue
+ } elsif ($opcode == 8) {
+ my $statuscode = unpack ("n", $frame_data);
+ $req_close = 1;
+ } else {
+ die "received unhandled websocket opcode $opcode\n";
+ }
+ }
+
+ return ($payload, $req_close);
+};
__PACKAGE__->register_method ({
name => 'enter',
parameters => {
additionalProperties => 0,
properties => {
+ remote => get_standard_option('pveclient-remote-name'),
vmid => {
description => "The container ID",
type => 'string',
code => sub {
my ($param) = @_;
- die "implement me";
+ my $conn = PVE::APIClient::Config::get_remote_connection($param->{remote});
+
+ # Get the real node from the resources endpoint
+ my $resource_list = $conn->get("api2/json/cluster/resources", { type => 'vm'});
+ my ($resource) = grep { $_->{type} eq "lxc" && $_->{vmid} eq $param->{vmid}} @$resource_list;
+
+ die "container '$param->{vmid}' does not exist\n"
+ if !(defined($resource) && defined($resource->{node}));
+
+ my $node = $resource->{node};
+
+ my $api_path = "api2/json/nodes/$node/lxc/$param->{vmid}";
+
+ my $termproxy = $conn->post("${api_path}/termproxy", {});
+
+ my $web_socket = IO::Socket::SSL->new(
+ PeerHost => $conn->{host},
+ PeerPort => $conn->{port},
+ SSL_verify_mode => SSL_VERIFY_NONE, # fixme: ???
+ timeout => 30) ||
+ die "failed to connect: $!\n";
+
+ # WebSocket Handshake
+
+ my ($request, $wskey) = $build_web_socket_request->(
+ "/$api_path/vncwebsocket", $conn->{ticket}, $termproxy);
+
+ $web_socket->syswrite($request);
+
+ my $wsbuf = '';
+
+ my $wb_socket_read_available_bytes = sub {
+ my $nr = $web_socket->sysread($wsbuf, $max_payload_size, length($wsbuf));
+ die "web socket read error - $!\n" if $nr < 0;
+ return $nr;
+ };
+
+ my $raw_response = '';
+
+ while(1) {
+ my $nr = $wb_socket_read_available_bytes->();
+ if ($wsbuf =~ s/^(.*?)$CRLF$CRLF//s) {
+ $raw_response = $1;
+ last;
+ }
+ last if !$nr;
+ };
+
+ # Note: we keep any remaining data in $wsbuf
+
+ my $response = HTTP::Response->parse($raw_response);
+
+ # Note: Digest::SHA::sha1_base64 has wrong padding
+ my $wsaccept = Digest::SHA::sha1_base64("${wskey}258EAFA5-E914-47DA-95CA-C5AB0DC85B11") . "=";
+
+ die "got invalid websocket reponse: $raw_response\n"
+ if !(($response->code == 101) &&
+ ($response->header('connection') eq 'upgrade') &&
+ ($response->header('upgrade') eq 'websocket') &&
+ ($response->header('sec-websocket-protocol') eq 'binary') &&
+ ($response->header('sec-websocket-accept') eq $wsaccept));
+
+ # send auth again...
+ my $frame = $create_websockt_frame->($termproxy->{user} . ":" . $termproxy->{ticket} . "\n");
+ $web_socket->syswrite($frame);
+
+ my $select = IO::Select->new;
+
+ $web_socket->blocking(0);
+ $select->add($web_socket);
+
+ 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, 1);
+ print "GOT: $payload\n" if defined($payload);
+ last if $req_close;
+ last if !$nr; # eos
+ } else {
+ die "internal error - unknown handle";
+ }
+ }
+ }
}});
parameters => {
additionalProperties => 0,
properties => {
- remote => {
- description => "The remote name.",
- type => 'string',
- },
+ remote => get_standard_option('pveclient-remote-name'),
},
},
returns => { type => 'null'},
our $cmddef = {
- enter => [ __PACKAGE__, 'enter', ['vmid']],
+ enter => [ __PACKAGE__, 'enter', ['remote', 'vmid']],
list => [ __PACKAGE__, 'list', ['remote']],
};