2020-07-04 22:31:17 +02:00
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require "option_parser"
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require "ipc"
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2020-10-02 19:22:36 +02:00
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require "ipc/json"
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2020-07-04 22:31:17 +02:00
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require "socket"
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require "./colors"
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require "json"
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require "socket"
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require "http/server"
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require "base64"
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require "digest"
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require "./utils"
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2020-10-01 17:43:32 +02:00
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require "baguette-crystal-base"
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require "colorize"
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2020-07-04 22:31:17 +02:00
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# All modifications to standard libraries go there.
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require "./lib_modifications.cr"
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2020-10-02 19:22:36 +02:00
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class Tracking::Request
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IPC::JSON.message IpAddress, 1 do
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property ipaddress : String?
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def initialize(@ipaddress = nil)
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end
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end
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end
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2020-10-25 06:22:37 +01:00
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class Baguette::Configuration
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class Websocket < Base
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# service instance parameters
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# they can be changed via the cli
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property service_name : String = "websocket"
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property host : String = "0.0.0.0"
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property port : UInt16 = 1234
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2020-07-04 22:31:17 +02:00
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2020-10-25 06:22:37 +01:00
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property ipc_timer : Int32 = 30_000.to_i32
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property print_messages : Bool = false
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property print_ipc_timer : Bool = false
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property verbosity : Int32 = 3
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def initialize
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end
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end
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2020-10-01 17:43:32 +02:00
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end
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2020-07-04 22:31:17 +02:00
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2020-10-25 06:22:37 +01:00
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simulation, no_configuration, configuration_file = Baguette::Configuration.option_parser
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configuration = if no_configuration
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Baguette::Log.info "do not load a configuration file."
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Baguette::Configuration::Websocket.new
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else
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Baguette::Configuration::Websocket.get(configuration_file) ||
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Baguette::Configuration::Websocket.new
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end
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Baguette::Context.verbosity = configuration.verbosity
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2020-07-04 22:31:17 +02:00
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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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2020-10-25 06:22:37 +01:00
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configuration.host = h
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2020-07-04 22:31:17 +02:00
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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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2020-10-25 06:22:37 +01:00
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configuration.port = port.to_u16
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2020-07-04 22:31:17 +02:00
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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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2020-10-25 06:22:37 +01:00
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configuration.service_name = name
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2020-07-04 22:31:17 +02:00
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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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2020-10-25 06:22:37 +01:00
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configuration.ipc_timer = t.to_i32 * 1000
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2020-10-01 17:43:32 +02:00
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end
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parser.on "-T", "--print-timer", "Print timer." do
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2020-10-25 06:22:37 +01:00
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configuration.print_ipc_timer = true
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2020-10-01 17:43:32 +02:00
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end
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parser.on "-M", "--print-messages", "Print messages received and sent." do
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2020-10-25 06:22:37 +01:00
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configuration.print_messages = true
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2020-07-04 22:31:17 +02:00
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end
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parser.on "-h", "--help", "Show this help" do
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puts parser
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exit 0
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end
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end
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2020-10-01 17:43:32 +02:00
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# Link between fd and TCPSocket, WebSocket and IPC::Client instances.
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2020-07-04 22:31:17 +02:00
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class InstanceStorage
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property service : IPC::SwitchingService
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property switchtable : Hash(Int32, Int32)
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property is_client : Hash(Int32,Bool)
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property is_json : Hash(Int32, Bool)
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property fd_to_tcpsocket : Hash(Int32, TCPSocket)
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property fd_to_websocket : Hash(Int32, WebSocket)
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2020-10-01 17:43:32 +02:00
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property fd_to_ipcclient : Hash(Int32, IPC::Client)
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2020-10-23 01:54:57 +02:00
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property fd_to_buffer : Hash(Int32, String)
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2020-07-04 22:31:17 +02:00
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def initialize (@service : IPC::SwitchingService)
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# fdlist_client = [] of TCPSocket
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@switchtable = Hash(Int32, Int32).new
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@is_client = Hash(Int32,Bool).new
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@is_json = Hash(Int32,Bool).new
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@fd_to_tcpsocket = Hash(Int32, TCPSocket).new
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@fd_to_websocket = Hash(Int32, WebSocket).new
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2020-10-01 17:43:32 +02:00
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@fd_to_ipcclient = Hash(Int32, IPC::Client).new
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2020-10-23 01:54:57 +02:00
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@fd_to_buffer = Hash(Int32, String).new
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2020-07-04 22:31:17 +02:00
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end
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def remove_fd (fdclient : Int32)
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Baguette::Log.info "closing the client:#{CRESET} #{fdclient}"
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if fdclient == -1
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raise "fdclient is -1, nothing to do with it"
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end
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2020-07-04 22:31:17 +02:00
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2020-10-01 17:43:32 +02:00
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begin
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# 1. closing both the client and the service
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tcpfdc = @fd_to_tcpsocket[fdclient]
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# 2. closing the TCP connections
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tcpfdc.close unless tcpfdc.closed?
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rescue e
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Baguette::Log.error "remove_fd: 1 #{e}"
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end
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2020-07-04 22:31:17 +02:00
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# 3. removing the client and the service fds from the loop check
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2020-10-01 17:43:32 +02:00
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begin
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@service.remove_fd (fdclient)
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rescue e
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Baguette::Log.error "remove_fd: 2 #{e}"
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end
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2020-07-04 22:31:17 +02:00
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# 5. removing both the client and the service from the switchtable
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fdservice = @switchtable[fdclient]?
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2020-07-04 22:31:17 +02:00
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@switchtable = @switchtable.select do |fdc, fds|
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fdc != fdclient && fds != fdclient
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end
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2020-10-23 01:54:57 +02:00
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@fd_to_buffer.select! do |fd, buffer|
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if fdservice.nil?
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fd != fdclient
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else
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fd != fdclient && fd != fdservice
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end
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end
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2020-07-04 22:31:17 +02:00
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# 6. removing the client and the service from is_client
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@is_client = @is_client.select do |fd,v| fd != fdclient end
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@is_json = @is_json.select do |fd,v| fd != fdclient end
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@fd_to_websocket.select! do |fd, ws|
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fd != fdclient
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end
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2020-10-01 17:43:32 +02:00
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begin
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if fdservice.nil?
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Baguette::Log.debug "client #{fdclient} aleady has its service removed"
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else
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2020-07-04 22:31:17 +02:00
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@service.remove_fd (fdservice)
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2020-10-01 17:43:32 +02:00
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service = @fd_to_ipcclient[fdservice]
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@fd_to_ipcclient = @fd_to_ipcclient.select do |k, v|
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2020-07-04 22:31:17 +02:00
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k != fdservice
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end
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@is_client = @is_client.select do |fd,v| fd != fdservice end
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2020-10-01 17:43:32 +02:00
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# perform the close at the end
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# on crash, this service still is removed from the list of listened fd
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service.close
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end
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rescue e
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Baguette::Log.error "remove_fd: 3 #{e}"
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2020-07-04 22:31:17 +02:00
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end
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2020-10-01 17:43:32 +02:00
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rescue e
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Baguette::Log.error "in InstanceStorage#remove_fd: #{e}"
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2020-07-04 22:31:17 +02:00
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end
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end
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2020-10-01 17:43:32 +02:00
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class Context
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2020-10-25 06:22:37 +01:00
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class_property service_name = "websocketd"
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end
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Context.service_name = configuration.service_name
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class Context
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class_property service = IPC::SwitchingService.new service_name
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class_property context = InstanceStorage.new service
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class_property print_messages = false
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class_property print_timer = false
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end
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Context.print_messages = configuration.print_messages
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Context.print_timer = configuration.print_ipc_timer
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if simulation
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pp! configuration
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exit 0
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2020-10-01 17:43:32 +02:00
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end
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2020-07-04 22:31:17 +02:00
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2020-10-25 06:22:37 +01:00
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2020-10-01 17:43:32 +02:00
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# by default, listen on any IP address
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2020-10-25 06:22:37 +01:00
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server = TCPServer.new configuration.host, configuration.port
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2020-10-01 17:43:32 +02:00
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Context.service << server.fd
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2020-07-04 22:31:17 +02:00
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2020-10-01 17:43:32 +02:00
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def websocket_client_connection(client)
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2020-07-04 22:31:17 +02:00
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request = HTTP::Request.from_io client
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2020-10-01 17:43:32 +02:00
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if Context.print_messages
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pp! request
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end
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2020-07-04 22:31:17 +02:00
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if request.nil?
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raise "#REQUEST IS NIL"
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end
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if request.is_a? HTTP::Status && request == HTTP::Status::BAD_REQUEST
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raise "BAD REQUEST DAZE~"
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end
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if request.is_a? HTTP::Status
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raise "Not bad request but still pretty bad: #{request.to_s}"
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end
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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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# HTTP inside bru
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headers_header = "HTTP/1.1 101 Switching Protocols"
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headers = HTTP::Headers {
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"Upgrade" => "websocket",
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"Connection" => "Upgrade",
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"Sec-WebSocket-Accept" => response_key
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}
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headers = headers.map { |key, value| "#{key}: #{value[0]}\r\n" }.join
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# requested service, fd
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2020-10-01 17:43:32 +02:00
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req_service = request.path.lchop.sub "ws/", ""
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2020-07-04 22:31:17 +02:00
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if req_service.empty?
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client.close
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return
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end
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# The client may ask to transcript JSON-based messages into IPC messages.
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# To that end, the client may send the name of the service it wants to reach with the prefix ".JSON".
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if req_service.ends_with? ".JSON"
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2020-10-01 17:43:32 +02:00
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Context.context.is_json[client.fd] = true
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2020-07-04 22:31:17 +02:00
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req_service = req_service.gsub /.JSON$/, ""
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else
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2020-10-01 17:43:32 +02:00
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Context.context.is_json[client.fd] = false
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2020-07-04 22:31:17 +02:00
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end
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2020-10-01 17:43:32 +02:00
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# Hack to preserve the daemon naming convention.
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2020-07-04 22:31:17 +02:00
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if req_service == "tracker"
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2020-10-01 17:43:32 +02:00
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req_service = "tracking"
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end
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websocket_connection_procedure req_service, client.fd
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# If the requested service is trackingd, send the IP address of the client
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if req_service == "tracking"
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real_ip_address = request.headers["X-Real-IP"]? || client.remote_address.address
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sfd = Context.context.switchtable[client.fd]
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Baguette::Log.info "trackingd - sending the IP address #{real_ip_address} to fd #{sfd}"
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2020-10-02 19:22:36 +02:00
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message = Tracking::Request::IpAddress.new real_ip_address
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2020-10-01 17:43:32 +02:00
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if Context.print_messages
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Baguette::Log.info "to trackingd: #{message.to_s}"
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end
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2020-10-02 19:22:36 +02:00
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Context.service.send_now sfd, message
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2020-07-04 22:31:17 +02:00
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end
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2020-10-01 17:43:32 +02:00
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if Context.print_messages
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Baguette::Log.info "to client: #{headers_header}\n#{headers.to_s}"
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end
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2020-07-04 22:31:17 +02:00
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client.send "#{headers_header}\n#{headers.to_s}\r\n"
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wsclient = WebSocket.new client
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|
|
|
wsclient.on_pong do |m|
|
2020-10-01 17:43:32 +02:00
|
|
|
|
Baguette::Log.debug "pong #{m}"
|
2020-07-04 22:31:17 +02:00
|
|
|
|
end
|
2020-10-01 17:43:32 +02:00
|
|
|
|
Context.context.is_client[client.fd] = true
|
2020-07-04 22:31:17 +02:00
|
|
|
|
|
|
|
|
|
# listen to the client's file descriptor
|
2020-10-01 17:43:32 +02:00
|
|
|
|
Context.context.service << client.fd
|
2020-07-04 22:31:17 +02:00
|
|
|
|
# puts "#{CBLUE}new client: #{client.fd}#{CRESET}"
|
|
|
|
|
|
|
|
|
|
# registering the client into storing structures to avoid being garbage collected
|
2020-10-01 17:43:32 +02:00
|
|
|
|
Context.context.fd_to_tcpsocket[client.fd] = client
|
|
|
|
|
Context.context.fd_to_websocket[client.fd] = wsclient
|
2020-07-04 22:31:17 +02:00
|
|
|
|
end
|
|
|
|
|
|
2020-10-01 17:43:32 +02:00
|
|
|
|
def closing_client (fdclient : Int)
|
|
|
|
|
Baguette::Log.warning "Closing client #{fdclient}"
|
|
|
|
|
Context.context.remove_fd fdclient
|
2020-07-04 22:31:17 +02:00
|
|
|
|
end
|
|
|
|
|
|
|
|
|
|
# first message from the client: requested service name
|
|
|
|
|
# 1. connection to the service
|
|
|
|
|
# 2. listening on the service fd
|
|
|
|
|
# 3. bounding both file descriptors (through switchtable hash)
|
|
|
|
|
# 4. indicating that the client is connected (in is_client)
|
2020-10-01 17:43:32 +02:00
|
|
|
|
def websocket_connection_procedure (requested_service : String, clientfd : Int32)
|
2020-07-04 22:31:17 +02:00
|
|
|
|
begin
|
2020-10-01 17:43:32 +02:00
|
|
|
|
# 1. establishing a connection to the service
|
|
|
|
|
newservice = IPC::Client.new requested_service
|
|
|
|
|
new_service_fd = newservice.fd.not_nil!
|
|
|
|
|
Context.context.fd_to_ipcclient[new_service_fd] = newservice
|
2020-07-04 22:31:17 +02:00
|
|
|
|
|
2020-10-01 17:43:32 +02:00
|
|
|
|
# 2. listening on the client fd and the service fd
|
|
|
|
|
Context.context.service << new_service_fd
|
2020-07-04 22:31:17 +02:00
|
|
|
|
|
|
|
|
|
# cannot perform automatic switching due to websockets headers
|
|
|
|
|
# future version of the libipc lib should include some workaround, probably
|
|
|
|
|
# service.switch.add fdclient, newservice.fd
|
|
|
|
|
|
2020-10-01 17:43:32 +02:00
|
|
|
|
# 3. bounding the client and the service fd
|
|
|
|
|
Context.context.switchtable[clientfd] = new_service_fd
|
|
|
|
|
Context.context.switchtable[new_service_fd] = clientfd
|
2020-07-04 22:31:17 +02:00
|
|
|
|
|
2020-10-01 17:43:32 +02:00
|
|
|
|
# 4. the client is then connected, send it a message
|
|
|
|
|
Context.context.is_client[clientfd] = true
|
|
|
|
|
Context.context.is_client[new_service_fd] = false
|
2020-07-04 22:31:17 +02:00
|
|
|
|
rescue e
|
2020-10-01 17:43:32 +02:00
|
|
|
|
Baguette::Log.error "Exception during connection to the service: #{e}"
|
|
|
|
|
Context.context.remove_fd clientfd
|
2020-07-04 22:31:17 +02:00
|
|
|
|
end
|
|
|
|
|
end
|
|
|
|
|
|
2020-10-23 01:54:57 +02:00
|
|
|
|
def print_message(message : String, origin : Int32)
|
|
|
|
|
return unless Context.print_messages
|
|
|
|
|
|
|
|
|
|
client = if Context.context.is_client[origin]
|
|
|
|
|
"client"
|
|
|
|
|
else
|
|
|
|
|
"server"
|
|
|
|
|
end
|
|
|
|
|
Baguette::Log.info "received message from client #{origin} (#{client}):"
|
|
|
|
|
pp! JSON.parse message
|
|
|
|
|
rescue e
|
|
|
|
|
Baguette::Log.warning "cannot see the message from #{origin} (#{client}): #{e}"
|
2020-10-01 17:43:32 +02:00
|
|
|
|
end
|
|
|
|
|
|
2020-10-23 01:54:57 +02:00
|
|
|
|
# WARNING: currently this is only covering String messages.
|
|
|
|
|
# Byte messages aren't addressed, yet.
|
2020-10-01 17:43:32 +02:00
|
|
|
|
def websocket_switching_procedure (activefd : Int)
|
2020-07-04 22:31:17 +02:00
|
|
|
|
begin
|
2020-10-01 17:43:32 +02:00
|
|
|
|
# Baguette::Log.title "activefd is #{activefd}"
|
|
|
|
|
if Context.context.is_client[activefd]
|
|
|
|
|
# Baguette::Log.title "activefd #{activefd} is a client"
|
2020-07-04 22:31:17 +02:00
|
|
|
|
# The client is a WebSocket on top of a TCP connection
|
2020-10-01 17:43:32 +02:00
|
|
|
|
client = Context.context.fd_to_tcpsocket[activefd]
|
|
|
|
|
wsclient = Context.context.fd_to_websocket[activefd]
|
|
|
|
|
|
2020-07-04 22:31:17 +02:00
|
|
|
|
loop do
|
|
|
|
|
begin
|
|
|
|
|
message = wsclient.run_once
|
|
|
|
|
rescue e
|
2020-10-01 17:43:32 +02:00
|
|
|
|
Baguette::Log.error "Exception (receiving a message) #{e}"
|
|
|
|
|
Context.context.remove_fd activefd
|
|
|
|
|
break
|
2020-07-04 22:31:17 +02:00
|
|
|
|
end
|
|
|
|
|
|
|
|
|
|
# Checking the internals of WebSocket, then the contained IO within, to know if there is still something to read in the socket.
|
|
|
|
|
still_something_to_read = ! wsclient.ws.io.empty?
|
|
|
|
|
|
|
|
|
|
if wsclient.closed?
|
2020-10-01 17:43:32 +02:00
|
|
|
|
Baguette::Log.info "client #{activefd} is closing"
|
|
|
|
|
Context.context.remove_fd activefd
|
|
|
|
|
break
|
2020-07-04 22:31:17 +02:00
|
|
|
|
end
|
|
|
|
|
|
|
|
|
|
if message.nil?
|
2020-10-01 17:43:32 +02:00
|
|
|
|
Baguette::Log.error "message received from #{activefd} is nil"
|
|
|
|
|
Context.context.remove_fd activefd
|
|
|
|
|
if still_something_to_read
|
|
|
|
|
Baguette::Log.info "Still something to read, but #{activefd} was removed"
|
|
|
|
|
next
|
|
|
|
|
end
|
|
|
|
|
break
|
2020-07-04 22:31:17 +02:00
|
|
|
|
end
|
|
|
|
|
|
|
|
|
|
case message
|
|
|
|
|
when WebSocket::Error
|
2020-10-01 17:43:32 +02:00
|
|
|
|
Baguette::Log.error "An error occured with client #{activefd}"
|
|
|
|
|
Context.context.remove_fd activefd
|
|
|
|
|
if still_something_to_read
|
|
|
|
|
Baguette::Log.debug "Still something to read, but #{activefd} was removed"
|
|
|
|
|
next
|
|
|
|
|
end
|
2020-07-04 22:31:17 +02:00
|
|
|
|
return
|
2020-10-23 01:54:57 +02:00
|
|
|
|
|
2020-07-04 22:31:17 +02:00
|
|
|
|
when WebSocket::Ping
|
2020-10-01 17:43:32 +02:00
|
|
|
|
Baguette::Log.debug "Received a ping message"
|
|
|
|
|
if still_something_to_read
|
|
|
|
|
Baguette::Log.debug "Still something to read"
|
|
|
|
|
next
|
|
|
|
|
end
|
2020-07-04 22:31:17 +02:00
|
|
|
|
break
|
2020-10-23 01:54:57 +02:00
|
|
|
|
|
2020-07-04 22:31:17 +02:00
|
|
|
|
when WebSocket::Pong
|
2020-10-01 17:43:32 +02:00
|
|
|
|
Baguette::Log.debug "Received a pong message"
|
|
|
|
|
if still_something_to_read
|
|
|
|
|
Baguette::Log.debug "Still something to read"
|
|
|
|
|
next
|
|
|
|
|
end
|
2020-07-04 22:31:17 +02:00
|
|
|
|
break
|
2020-10-23 01:54:57 +02:00
|
|
|
|
|
2020-07-04 22:31:17 +02:00
|
|
|
|
when WebSocket::Close
|
2020-10-01 17:43:32 +02:00
|
|
|
|
Baguette::Log.debug "Received a close message"
|
|
|
|
|
Context.context.remove_fd activefd
|
|
|
|
|
if still_something_to_read
|
|
|
|
|
Baguette::Log.debug "Still something to read"
|
|
|
|
|
next
|
|
|
|
|
end
|
|
|
|
|
break
|
|
|
|
|
|
2020-07-04 22:31:17 +02:00
|
|
|
|
when WebSocket::NotFinal
|
2020-10-23 01:54:57 +02:00
|
|
|
|
Baguette::Log.debug "Received only part of a message"
|
|
|
|
|
# There is a per-user buffer in case we receive "not final" websocket messages.
|
|
|
|
|
# In case the buffer isn't set yet.
|
|
|
|
|
unless Context.context.fd_to_buffer[activefd]?
|
|
|
|
|
Context.context.fd_to_buffer[activefd] = String.new
|
|
|
|
|
end
|
|
|
|
|
# Add the received message to the buffer.
|
|
|
|
|
Context.context.fd_to_buffer[activefd] += message.message
|
2020-10-01 17:43:32 +02:00
|
|
|
|
if still_something_to_read
|
2020-10-23 01:54:57 +02:00
|
|
|
|
Baguette::Log.debug "and there is still something to read"
|
2020-10-01 17:43:32 +02:00
|
|
|
|
next
|
|
|
|
|
end
|
2020-07-04 22:31:17 +02:00
|
|
|
|
break
|
2020-10-01 17:43:32 +02:00
|
|
|
|
|
2020-07-04 22:31:17 +02:00
|
|
|
|
when Bytes
|
|
|
|
|
# TODO: when receiving a binary message
|
|
|
|
|
# we should test the format and maybe its content
|
2020-10-01 17:43:32 +02:00
|
|
|
|
Baguette::Log.warning "Received a binary message (not supported)"
|
|
|
|
|
if still_something_to_read
|
|
|
|
|
Baguette::Log.info "Still something to read"
|
|
|
|
|
next
|
|
|
|
|
end
|
2020-10-23 01:54:57 +02:00
|
|
|
|
break
|
2020-10-01 17:43:32 +02:00
|
|
|
|
end
|
|
|
|
|
|
2020-10-23 01:54:57 +02:00
|
|
|
|
# Is there a (non empty) buffer for the active fd?
|
|
|
|
|
buffer_size = if Context.context.fd_to_buffer[activefd]?
|
|
|
|
|
Context.context.fd_to_buffer[activefd].size
|
|
|
|
|
else
|
|
|
|
|
0
|
2020-10-01 17:43:32 +02:00
|
|
|
|
end
|
|
|
|
|
|
2020-10-23 01:54:57 +02:00
|
|
|
|
# In case there was a previous message within a fragment.
|
|
|
|
|
if message.is_a?(String) && buffer_size > 0
|
|
|
|
|
message = Context.context.fd_to_buffer[activefd] + message
|
|
|
|
|
Context.context.fd_to_buffer[activefd] = String.new
|
2020-07-04 22:31:17 +02:00
|
|
|
|
end
|
|
|
|
|
|
2020-10-01 17:43:32 +02:00
|
|
|
|
if Context.context.is_json[activefd] && message.is_a?(String)
|
2020-10-23 01:54:57 +02:00
|
|
|
|
print_message message, activefd
|
2020-07-04 22:31:17 +02:00
|
|
|
|
message = IPC::Message.from_json(message).to_packet
|
|
|
|
|
end
|
|
|
|
|
|
|
|
|
|
# client => service
|
2020-10-01 17:43:32 +02:00
|
|
|
|
fdservice = Context.context.switchtable[activefd]
|
2020-07-04 22:31:17 +02:00
|
|
|
|
|
|
|
|
|
# XXX: this is not a TCP fd, but since behind the scene this is compatible, I'm hacking a bit
|
|
|
|
|
# Also, I changed the "finalize" method of the TCPFileDescriptor class not to close the socket
|
|
|
|
|
# when the object is GC.
|
|
|
|
|
serv = WrappedTCPFileDescriptor.new(fd: fdservice, family: Socket::Family::INET)
|
2020-10-01 17:43:32 +02:00
|
|
|
|
#serv = Context.context.fd_to_ipcclient[fdservice]
|
2020-10-23 01:54:57 +02:00
|
|
|
|
begin
|
|
|
|
|
serv.send message
|
|
|
|
|
rescue e
|
|
|
|
|
Baguette::Log.error "Sending a message failed: #{e}"
|
|
|
|
|
end
|
2020-07-04 22:31:17 +02:00
|
|
|
|
|
|
|
|
|
break unless still_something_to_read
|
|
|
|
|
|
|
|
|
|
end # loop over the remaining messages to read on the websocket
|
|
|
|
|
else
|
|
|
|
|
# service => client
|
2020-10-01 17:43:32 +02:00
|
|
|
|
fdclient = Context.context.switchtable[activefd]
|
|
|
|
|
wsclient = Context.context.fd_to_websocket[fdclient]
|
2020-07-04 22:31:17 +02:00
|
|
|
|
|
2020-10-01 17:43:32 +02:00
|
|
|
|
serv = Context.context.fd_to_ipcclient[activefd]
|
2020-07-04 22:31:17 +02:00
|
|
|
|
message = serv.read
|
|
|
|
|
|
2020-10-01 17:43:32 +02:00
|
|
|
|
if Context.context.is_json[fdclient]
|
2020-07-04 22:31:17 +02:00
|
|
|
|
buf = message.to_json
|
2020-10-23 01:54:57 +02:00
|
|
|
|
print_message buf, activefd
|
2020-07-04 22:31:17 +02:00
|
|
|
|
else
|
|
|
|
|
buf = message.to_packet
|
|
|
|
|
end
|
|
|
|
|
|
|
|
|
|
wsclient.send buf
|
|
|
|
|
end
|
|
|
|
|
rescue e
|
2020-10-01 17:43:32 +02:00
|
|
|
|
Baguette::Log.error "Exception during message transfer: #{e}"
|
|
|
|
|
if Context.context.is_client[activefd]
|
|
|
|
|
closing_client activefd
|
2020-07-04 22:31:17 +02:00
|
|
|
|
else
|
2020-10-01 17:43:32 +02:00
|
|
|
|
clientfd = Context.context.switchtable[activefd]
|
|
|
|
|
closing_client clientfd
|
2020-07-04 22:31:17 +02:00
|
|
|
|
end
|
|
|
|
|
end
|
|
|
|
|
end
|
|
|
|
|
|
2020-10-01 17:43:32 +02:00
|
|
|
|
def sending_ping_messages
|
|
|
|
|
Context.context.fd_to_websocket.each do |fd, ws|
|
2020-07-04 22:31:17 +02:00
|
|
|
|
begin
|
|
|
|
|
ws.ping "hello from #{fd}"
|
|
|
|
|
rescue e
|
2020-10-01 17:43:32 +02:00
|
|
|
|
Baguette::Log.error "#{CRED}Exception: #{e}#{CRESET}, already closed client #{fd}"
|
2020-07-04 22:31:17 +02:00
|
|
|
|
begin
|
2020-10-01 17:43:32 +02:00
|
|
|
|
Context.context.remove_fd fd
|
2020-07-04 22:31:17 +02:00
|
|
|
|
rescue e
|
2020-10-01 17:43:32 +02:00
|
|
|
|
Baguette::Log.error "#{CRED}Cannot remove #{fd} from clients: #{e}#{CRESET}"
|
2020-07-04 22:31:17 +02:00
|
|
|
|
end
|
|
|
|
|
end
|
|
|
|
|
end
|
|
|
|
|
end
|
|
|
|
|
|
|
|
|
|
# Every few seconds, the service should trigger the timer
|
|
|
|
|
# Allowing the sending of Ping messages to clients
|
2020-10-25 06:22:37 +01:00
|
|
|
|
Context.service.base_timer = configuration.ipc_timer
|
2020-07-04 22:31:17 +02:00
|
|
|
|
|
2020-10-01 17:43:32 +02:00
|
|
|
|
Context.service.loop do |event|
|
|
|
|
|
begin
|
|
|
|
|
case event
|
|
|
|
|
when IPC::Event::Timer
|
|
|
|
|
Baguette::Log.info "IPC::Event::Timer" if Context.print_timer
|
|
|
|
|
sending_ping_messages
|
|
|
|
|
when IPC::Event::Connection
|
|
|
|
|
Baguette::Log.debug "IPC::Event::Connection: #{event.fd}"
|
|
|
|
|
|
|
|
|
|
when IPC::Event::Disconnection
|
|
|
|
|
Baguette::Log.debug "IPC::Event::Disconnection: #{event.fd}"
|
|
|
|
|
|
|
|
|
|
when IPC::Event::ExtraSocket
|
|
|
|
|
Baguette::Log.debug "IPC::Event::ExtraSocket: #{event.fd}"
|
|
|
|
|
|
|
|
|
|
# 1. accept new websocket clients
|
|
|
|
|
if server.fd == event.fd
|
|
|
|
|
client = server.accept
|
|
|
|
|
begin
|
|
|
|
|
websocket_client_connection client
|
|
|
|
|
Baguette::Log.info "new client: #{client.fd}"
|
|
|
|
|
rescue e
|
|
|
|
|
Baguette::Log.error "Exception: #{e}"
|
|
|
|
|
client.close
|
|
|
|
|
end
|
|
|
|
|
next
|
2020-07-04 22:31:17 +02:00
|
|
|
|
end
|
|
|
|
|
|
2020-10-01 17:43:32 +02:00
|
|
|
|
# 2. active fd != server fd
|
|
|
|
|
activefd = event.fd
|
|
|
|
|
if activefd <= 0
|
|
|
|
|
Baguette::Log.error "faulty activefd: #{activefd}"
|
|
|
|
|
end
|
|
|
|
|
websocket_switching_procedure activefd
|
2020-07-04 22:31:17 +02:00
|
|
|
|
|
2020-10-01 17:43:32 +02:00
|
|
|
|
when IPC::Event::Switch
|
|
|
|
|
Baguette::Log.debug "IPC::Event::Switch: from fd #{event.fd}"
|
|
|
|
|
raise "Not implemented."
|
2020-07-04 22:31:17 +02:00
|
|
|
|
|
2020-10-01 17:43:32 +02:00
|
|
|
|
# IPC::Event::Message has to be the last entry
|
|
|
|
|
# because ExtraSocket and Switch inherit from Message class
|
|
|
|
|
when IPC::Event::MessageSent
|
|
|
|
|
Baguette::Log.error "IPC::Event::MessageSent: #{event.fd}"
|
2020-07-04 22:31:17 +02:00
|
|
|
|
|
2020-10-01 17:43:32 +02:00
|
|
|
|
when IPC::Event::MessageReceived
|
|
|
|
|
Baguette::Log.debug "IPC::Event::MessageReceived: #{event.fd}"
|
|
|
|
|
raise "Not implemented."
|
2020-07-04 22:31:17 +02:00
|
|
|
|
end
|
2020-10-01 17:43:32 +02:00
|
|
|
|
rescue e
|
|
|
|
|
Baguette::Log.error "IPC loop final catch: #{e}"
|
2020-07-04 22:31:17 +02:00
|
|
|
|
end
|
|
|
|
|
end
|