New logging system.
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@ -3,6 +3,8 @@ require "ipc"
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require "socket"
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require "./colors"
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require "colorize"
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require "json"
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require "socket"
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@ -16,7 +18,7 @@ require "./instance_storage.cr"
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# All modifications to standard libraries go there.
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require "./lib_modifications.cr"
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class CLI
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class Context
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# service instance parameters
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# they can be changed via the cli
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class_property service_name : String = "websocket"
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@ -26,25 +28,40 @@ class CLI
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class_property verbosity : Int32 = 1
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end
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class Log
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def self.debug(message)
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STDOUT << ":: ".colorize(:green) << message.colorize(:white) << "\n" if ::Context.verbosity > 2
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end
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def self.info(message)
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STDOUT << ":: ".colorize(:blue) << message.colorize(:white) << "\n" if ::Context.verbosity > 1
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end
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def self.warning(message)
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STDERR << "?? ".colorize(:yellow) << message.colorize(:yellow) << "\n" if ::Context.verbosity > 0
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end
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def self.error(message)
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STDERR << "!! ".colorize(:red) << message.colorize(:red) << "\n" if ::Context.verbosity > 0
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end
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end
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OptionParser.parse do |parser|
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parser.on "-l host", "--l host", "IP address to listen on." do |h|
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CLI.host = h
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Context.host = h
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end
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parser.on "-p port", "--port port", "Port to listen on." do |port|
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CLI.port_to_listen = port.to_u16
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Context.port_to_listen = port.to_u16
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end
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parser.on "-s service-name", "--service-name service-name", "Service name." do |name|
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CLI.service_name = name
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Context.service_name = name
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end
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parser.on "-t timer-delay", "--timer-delay timer-delay", "Timer delay (in seconds)" do |t|
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CLI.timer_delay = t.to_i32 * 1000 # stored in ms
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Context.timer_delay = t.to_i32 * 1000 # stored in ms
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end
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parser.on "-v verbosity-level", "--verbosity level", "Verbosity." do |opt|
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CLI.verbosity = opt.to_i
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Context.verbosity = opt.to_i
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end
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parser.on "-h", "--help", "Show this help" do
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@ -58,11 +75,11 @@ def sending_ping_messages
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begin
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ws.ping "hello from #{fd}"
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rescue e
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puts "#{CRED}Exception: #{e}#{CRESET}, already closed client #{fd}"
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Log.error "Exception: #{e}, already closed client #{fd}"
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begin
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Context.context.remove_fd fd
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rescue e
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puts "#{CRED}Cannot remove #{fd} from clients: #{e}#{CRESET}"
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Log.error "Cannot remove #{fd} from clients: #{e}"
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end
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end
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end
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@ -86,7 +103,7 @@ def ws_http_upgrade(client)
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# FIXME: check they actually wanted to upgrade to websocket
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key = request.headers["Sec-WebSocket-Key"]
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response_key = Digest::SHA1.base64digest key + "258EAFA5-E914-47DA-95CA-C5AB0DC85B11"
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# puts response_key
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# Log.debug response_key
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# HTTP inside bru
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headers_header = "HTTP/1.1 101 Switching Protocols"
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@ -113,7 +130,7 @@ def ws_http_upgrade(client)
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wsclient = WebSocket.new client
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wsclient.on_pong do |m|
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puts "pong #{m}"
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Log.debug "pong #{m}"
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end
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# registering the client into storing structures to avoid being garbage collected
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@ -122,7 +139,7 @@ def ws_http_upgrade(client)
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return req_service, request
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rescue e
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puts "#{CRED}Exception in ws_http_upgrade#{CRESET}: #{CBLUE}#{e}#{CRESET}"
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Log.error "Exception in ws_http_upgrade: #{e}"
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raise "DROP IT"
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end
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@ -161,7 +178,7 @@ def handle_new_clients(service, server)
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# If not found, we use the client address from the socket.
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real_ip_address = request.headers["X-Real-IP"] || client.remote_address.address
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puts "trackingd - sending the IP address #{real_ip_address} to fd #{serverfd}"
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Log.info "trackingd - sending the IP address #{real_ip_address} to fd #{serverfd}"
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# sfd = Context.context.switchtable[client.fd]
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# message = IPC::Message.from_json(JSON).to_packet
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# => JSON has to include these attributes: mtype, utype, payload
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@ -173,16 +190,16 @@ def handle_new_clients(service, server)
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# serv.send message.to_packet
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end
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info "#{CBLUE}new client:#{CRESET} #{client.fd}"
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Log.debug "new client: #{client.fd}"
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rescue e
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puts "Exception in handle_new_client: #{CRED}#{e}#{CRESET}"
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Log.error "Exception in handle_new_client: #{e}"
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unless client.nil?
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client.close
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end
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end
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def ws_cb_out(fd : Int32, pm : Pointer(LibIPC::Message))
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# info "OUT fd is #{fd}"
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# Log.info "OUT fd is #{fd}"
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wsclient = Context.context.fd_to_websocket[fd]
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message = IPC::Message.new pm
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@ -198,13 +215,13 @@ def ws_cb_out(fd : Int32, pm : Pointer(LibIPC::Message))
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return LibIPC::IPCCB::NoError
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rescue e
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puts "#{CRED}Exception during message transfer:#{CRESET} #{e}"
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Log.error "Exception during message transfer: #{e}"
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Context.context.remove_fd fd
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return LibIPC::IPCCB::Error
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end
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def ws_cb_in(fd : Int32, pm : LibIPC::Message*, more_to_read : Int16*)
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# info "IN fd is #{fd}"
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# Log.debug "IN fd is #{fd}"
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wsclient = Context.context.fd_to_websocket[fd]
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@ -212,7 +229,7 @@ def ws_cb_in(fd : Int32, pm : LibIPC::Message*, more_to_read : Int16*)
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begin
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message = wsclient.run_once
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rescue e
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puts "#{CRED}run_once FAILED#{CRESET}: #{e}"
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Log.error "run_once FAILED: #{e}"
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Context.context.remove_fd fd
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return LibIPC::IPCCB::Error
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end
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@ -224,13 +241,13 @@ def ws_cb_in(fd : Int32, pm : LibIPC::Message*, more_to_read : Int16*)
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end
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if wsclient.closed?
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info "#{CBLUE}client is closed#{CRESET}"
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Log.info "client closed the connection"
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Context.context.remove_fd fd
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return LibIPC::IPCCB::Closing
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end
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if message.nil?
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puts "#{CRED}message is nil#{CRESET}"
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Log.error "Reveiced a nil message"
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Context.context.remove_fd fd
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return LibIPC::IPCCB::Closing
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end
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@ -246,97 +263,91 @@ def ws_cb_in(fd : Int32, pm : LibIPC::Message*, more_to_read : Int16*)
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# every other option should be dropped
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case message
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when WebSocket::Error
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puts "#{CRED}An error occured#{CRESET}"
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Log.error "An error occured"
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Context.context.remove_fd fd
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return LibIPC::IPCCB::Error
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when WebSocket::Ping
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puts "#{CBLUE}Received a ping message#{CRESET}"
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Log.debug "Received a ping message"
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Context.context.remove_fd fd
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return LibIPC::IPCCB::Ignore
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when WebSocket::Pong
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puts "#{CBLUE}Received a pong message#{CRESET}"
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Log.debug "Received a pong message"
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return LibIPC::IPCCB::Ignore
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when WebSocket::Close
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puts "#{CBLUE}Received a close message#{CRESET}"
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Log.debug "Received a close message"
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Context.context.remove_fd fd
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return LibIPC::IPCCB::Closing
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when WebSocket::NotFinal
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puts "#{CBLUE}Received only part of a message: NOT IMPLEMENTED#{CRESET}"
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Log.warning "Received only part of a message: NOT IMPLEMENTED"
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Context.context.remove_fd fd
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return LibIPC::IPCCB::Error
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when Bytes
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# TODO: when receiving a binary message
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# we should test the format and maybe its content
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puts "#{CBLUE}Received a binary message: NOT IMPLEMENTED, YET#{CRESET}"
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Log.error "Received a binary message: NOT IMPLEMENTED, YET"
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Context.context.remove_fd fd
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return LibIPC::IPCCB::Error
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else
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puts "#{CRED}Received a websocket message with unknown type#{CRESET}"
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Log.error "Received a websocket message with unknown type"
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end
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end
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return LibIPC::IPCCB::Error
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rescue e
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puts "#{CRED}Exception (receiving a message)#{CRESET} #{e}"
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Log.error "Exception (receiving a message) #{e}"
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# tcp = WrappedTCPFileDescriptor.new(fd: fd, family: Socket::Family::INET)
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# tcp.close
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Context.context.remove_fd fd
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return LibIPC::IPCCB::Error
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end
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def info(str : String)
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if CLI.verbosity > 0
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puts str
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end
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end
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class Context
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class_property context = InstanceStorage.new
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end
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def main
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# by default, listen on any IP address
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server = TCPServer.new(CLI.host, CLI.port_to_listen)
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service = IPC::Server.new CLI.service_name
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server = TCPServer.new(Context.host, Context.port_to_listen)
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service = IPC::Server.new Context.service_name
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service << server.fd
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# Every few seconds, the service should trigger the timer
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# Allowing the sending of Ping messages to clients
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service.base_timer = CLI.timer_delay
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service.timer = CLI.timer_delay
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service.base_timer = Context.timer_delay
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service.timer = Context.timer_delay
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service.loop do |event|
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# info "current state of the context:"
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# Log.info "current state of the context:"
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# service.pp
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case event
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when IPC::Event::Timer
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info "#{CORANGE}IPC::Event::Timer#{CRESET}"
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Log.debug "IPC::Event::Timer"
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sending_ping_messages
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when IPC::Event::Connection
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info "#{CBLUE}IPC::Event::Connection#{CRESET}: fd #{event.fd}"
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Log.debug "IPC::Event::Connection: fd #{event.fd}"
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when IPC::Event::Disconnection
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info "#{CBLUE}IPC::Event::Disconnection#{CRESET}: fd #{event.fd}"
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Log.debug "IPC::Event::Disconnection: fd #{event.fd}"
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Context.context.remove_fd event.fd
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when IPC::Event::ExtraSocket
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info "#{CBLUE}IPC::Event::ExtraSocket#{CRESET}: fd #{event.fd}"
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Log.debug "IPC::Event::ExtraSocket: fd #{event.fd}"
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if server.fd != event.fd
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raise "Error: the only extra socket should be the TCP/WS server"
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end
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handle_new_clients(service, server)
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when IPC::Event::Switch
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info "\033[36mIPC::Event::Switch#{CRESET}: fd #{event.fd}"
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Log.debug "IPC::Event::Switch: fd #{event.fd}"
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# raise "Not implemented."
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when IPC::Event::MessageSent
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info "#{CBLUE}IPC::Event::MessageSent#{CRESET}: fd #{event.fd}"
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Log.debug "IPC::Event::MessageSent: fd #{event.fd}"
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when IPC::Event::MessageReceived
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info "#{CBLUE}IPC::Event::Message#{CRESET}: fd #{event.fd}"
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Log.debug "IPC::Event::Message: fd #{event.fd}"
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raise "Not implemented."
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end
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