Class: IRC::Client::Dispatcher::ConnectionDispatcher

Inherits:
Object
  • Object
show all
Defined in:
lib/failirc/client/dispatcher/connectiondispatcher.rb

Defined Under Namespace

Classes: Connections, Data

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(dispatcher) ⇒ ConnectionDispatcher

Returns a new instance of ConnectionDispatcher.



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# File 'lib/failirc/client/dispatcher/connectiondispatcher.rb', line 166

def initialize (dispatcher)
    @client     = dispatcher.client
    @dispatcher = dispatcher

    @connections   = Connections.new(client)
    @input         = Data.new(dispatcher)
    @output        = Data.new(dispatcher)
    @disconnecting = []
end

Instance Attribute Details

#client ⇒ Object (readonly)

Returns the value of attribute client.



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# File 'lib/failirc/client/dispatcher/connectiondispatcher.rb', line 164

def client
  @client
end

#connections ⇒ Object (readonly)

Returns the value of attribute connections.



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# File 'lib/failirc/client/dispatcher/connectiondispatcher.rb', line 164

def connections
  @connections
end

#disconnecting ⇒ Object (readonly)

Returns the value of attribute disconnecting.



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# File 'lib/failirc/client/dispatcher/connectiondispatcher.rb', line 164

def disconnecting
  @disconnecting
end

#dispatcher ⇒ Object (readonly)

Returns the value of attribute dispatcher.



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# File 'lib/failirc/client/dispatcher/connectiondispatcher.rb', line 164

def dispatcher
  @dispatcher
end

#input ⇒ Object (readonly)

Returns the value of attribute input.



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# File 'lib/failirc/client/dispatcher/connectiondispatcher.rb', line 164

def input
  @input
end

#output ⇒ Object (readonly)

Returns the value of attribute output.



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# File 'lib/failirc/client/dispatcher/connectiondispatcher.rb', line 164

def output
  @output
end

Instance Method Details

#clean ⇒ Object 



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# File 'lib/failirc/client/dispatcher/connectiondispatcher.rb', line 288

def clean
    @disconnecting.each {|data|
        server = data[:server]
        output = data[:output]

        if output.first == :EOC
            output.shift
            handleDisconnection server, output.shift
            @disconnecting.delete(data)
        end
    }
end

#connect(options, config, name = nil) ⇒ Object 



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# File 'lib/failirc/client/dispatcher/connectiondispatcher.rb', line 184

def connect (options, config, name=nil)
    socket  = nil
    context = nil

    begin
        socket = TCPSocket.new(options[:host], options[:port])
    rescue Errno::ECONNREFUSED
        self.debug "Could not connect to #{options[:host]}/#{options[:port]}."
        return
    end

    if options[:ssl] != 'disabled'
        context = SSLUtils::context(options[:ssl_cert], options[:ssl_key])
    end

    host = socket.peeraddr[2]
    ip   = socket.peeraddr[3]
    port = socket.peeraddr[1]

    self.debug "Connecting to #{host}[#{ip}/#{port}]"

    begin
        if config.attributes['ssl'] != 'disabled'
            ssl = OpenSSL::SSL::SSLSocket.new socket, context

            ssl.connect
            socket = ssl
        end

        @connections.servers[:bySocket][socket] = Server.new(client, socket, config, name)
        @connections.servers[:byName][server(socket).name] = server socket
        @connections.sockets.push(socket)

        if config.attributes['password']
            server(socket).password = config.attributes['password']
        end

        @input[socket]
        
        dispatcher.execute :connect, @connections.servers[:bySocket][socket]
    rescue OpenSSL::SSL::SSLError
        self.debug "Tried to connect to #{host}[#{ip}/#{port}] with SSL but the handshake failed."
        socket.close rescue nil
    rescue Errno::ECONNRESET
        socket.close rescue nil
        self.debug "#{host}[#{ip}/#{port}] connection reset."
    rescue Exception => e
        socket.close rescue nil
        self.debug e
    end
end

#disconnect(server, message) ⇒ Object 



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# File 'lib/failirc/client/dispatcher/connectiondispatcher.rb', line 283

def disconnect (server, message)
    @output.push server, :EOC
    @output.push server, message
end

#finalize ⇒ Object 



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# File 'lib/failirc/client/dispatcher/connectiondispatcher.rb', line 385

def finalize
    begin
        @connections.sockets.each {|socket|
            disconnect self.server(socket), disconnecting
        }
    rescue Exception => e
        self.debug e
    end
end

#handle ⇒ Object 



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# File 'lib/failirc/client/dispatcher/connectiondispatcher.rb', line 301

def handle
    @input.each {|socket|
        if dispatcher.event.handling[socket] || @input.empty?(socket)
            next
        end

        Thread.new {
            begin
                if string = @input.pop(socket)
                    dispatcher.dispatch(:input, server(socket), string)
                end
            rescue Exception => e
                self.debug e
            end
        }
    }
end

#handleDisconnection(server, message) ⇒ Object 



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# File 'lib/failirc/client/dispatcher/connectiondispatcher.rb', line 373

def handleDisconnection (server, message)
    @dispatcher.execute(:disconnect, server, message) rescue nil

    @input.delete(server.socket)
    @output.delete(server.socket)
    connections.delete(server.socket)

    self.debug "Disconnected from #{server}[#{server.ip}/#{server.port}]"

    server.socket.close rescue nil
end

#read(timeout = 0.1) ⇒ Object 



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# File 'lib/failirc/client/dispatcher/connectiondispatcher.rb', line 236

def read (timeout=0.1)
    begin
        reading, = IO::select @connections.sockets, nil, nil, timeout
    rescue IOError
        @connections.sockets.each {|socket|
            if socket.closed?
                kill server socket
            end
        }
    rescue Exception => e
        self.debug e
    end

    if !reading
        return
    end

    reading.each {|socket|
        server = self.server socket

        begin
            input = socket.read_nonblock 2048

            if !input || input.empty?
                raise Errno::EPIPE
            end

            input.split(/[\r\n]+/).each {|string|
                @input.push(socket, string)
            }
        rescue IOError
            disconnect server, 'Input/output error'
        rescue Errno::EBADF, Errno::EPIPE, OpenSSL::SSL::SSLError
            disconnect server, 'Client exited'
        rescue Errno::ECONNRESET
            disconnect server, 'Connection reset by peer'
        rescue Errno::ETIMEDOUT
            disconnect server, 'Ping timeout'
        rescue Errno::EHOSTUNREACH
            disconnect server, 'No route to host'
        rescue Errno::EAGAIN, IO::WaitReadable
        rescue Exception => e
            self.debug e
        end
    }
end

#server(identifier) ⇒ Object 



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# File 'lib/failirc/client/dispatcher/connectiondispatcher.rb', line 395

def server (identifier)
    if identifier.is_a?(Server)
        return identifier
    elsif identifier.is_a?(String)
        return @connections.servers[:byName][identifier]
    else
        return @connections.servers[:bySocket][identifier]
    end
end

#servers ⇒ Object 



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# File 'lib/failirc/client/dispatcher/connectiondispatcher.rb', line 180

def servers
    @connections.servers
end

#sockets ⇒ Object 



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# File 'lib/failirc/client/dispatcher/connectiondispatcher.rb', line 176

def sockets
    @connections.sockets
end

#write(timeout = 0) ⇒ Object 



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# File 'lib/failirc/client/dispatcher/connectiondispatcher.rb', line 319

def write (timeout=0)
    begin
        none, writing = IO::select nil, @connections.sockets, nil, timeout
    rescue IOError
        @connections.sockets.each {|socket|
            if socket.closed?
                kill server socket
            end
        }
    rescue Exception => e
        self.debug e
    end

    if !writing
        return
    end

    writing.each {|socket|
        if @output.empty?(socket)
            next
        end

        server = self.server socket

        begin
            while !@output.empty?(socket)
                output = @output.first(socket)

                if output == :EOC
                    @output.delete(socket)
                else
                    output.force_encoding 'ASCII-8BIT'
                    socket.write_nonblock "#{output}\r\n"

                    @output.pop(socket)
                end
            end
        rescue IOError
            disconnect server, 'Input/output error'
        rescue Errno::EBADF, Errno::EPIPE, OpenSSL::SSL::SSLError
            disconnect server, 'Client exited'
        rescue Errno::ECONNRESET
            disconnect server, 'Connection reset by peer'
        rescue Errno::ETIMEDOUT
            disconnect server, 'Ping timeout'
        rescue Errno::EHOSTUNREACH
            disconnect server, 'No route to host'
        rescue Errno::EAGAIN, IO::WaitWritable
        rescue Exception => e
            self.debug e
        end
    }
end