How to connect to Xen XAPI/XCP-NG VNC/RFB connection urls?

Question

How can I connect to Xapi-style urls such as https://192.168.1.45/console?uuid=e82eeea4-4d88-d31a-aabd-c4207ca6c24d with a normal vnc client?

Remmina seems to straight up crash with that as the host, and trying to use a socat proxy also closes the connection.

KRDC and TigerVNC get confused, Vinagre gives an error, and Remmina crashes or hangs.

The documentation shows that it's a non-standard https proxy, and I am wondering there is a Linux VNC client with this proxy support built in, or a command I can run to do the http connect directly?

Answer 1

I ended up writing a simple proxy in Ruby to do this. Run as ruby thisscript.rb xapi-url yourusername

require 'socket'
require 'base64'
require 'openssl'
require 'uri'
def connect(uri, auth)
    ss = TCPSocket.new uri.host, uri.port
    ssl_socket = if uri.scheme == "https"
        ssl_context = OpenSSL::SSL::SSLContext.new()
        ssl_socket = OpenSSL::SSL::SSLSocket.new(ss, ssl_context)
        ssl_socket.sync_close = true
        ssl_socket.connect
        ssl_socket
    else
        ss
    end
    ssl_socket.puts("CONNECT #{uri.path}?#{uri.query} HTTP/1.1\r\nAuthorization: Basic #{Base64.encode64(auth)}\r\n\r\n")
begin
    text = ""
    until text.include? "\r\n\r\n"
        text << ssl_socket.readpartial(1024).tap{|x|print x}
    end
    text = nil
ensure
    puts text if text
end
return ssl_socket

end
listening = TCPServer.new 5903
uri = URI(ARGV[0])
username = ARGV[1]
ARGV.shift
ARGV.shift
print "Enter Password for #{username}: "
pass = gets.strip
loop do
    clent = listening.accept
    puts "Connecting..."
    ssl_socket = connect(uri, "#{username}:#{pass}")
Thread.new do 
    # XEN -> VNC
    begin 
        loop do
            clent.write ssl_socket.readpartial(4096)
        end
    rescue EOFError
        client.close rescue nil
        ssl_socket.close rescue nil
    end
end 
# VNC -> XEN
begin 
    loop do
        ssl_socket.write clent.readpartial(4096)
    end
rescue EOFError
    client.close rescue nil
    ssl_socket.close rescue nil
end
puts "Closed stream"

end