mirror of
https://github.com/bobbimanners/emailler.git
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75 lines
2.9 KiB
Ruby
75 lines
2.9 KiB
Ruby
#
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# message formats for Trivial Network Disk Protocol
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#
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$:.unshift(File.dirname(__FILE__)) unless
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$:.include?(File.dirname(__FILE__)) || $:.include?(File.expand_path(File.dirname(__FILE__)))
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require 'tndp'
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require 'socket'
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require 'RipXplore'
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class TNDPServer
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LISTENING_PORT=6502
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attr_reader :root_directory,:port ,:server_thread,:socket
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def initialize(root_directory,port=LISTENING_PORT)
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@root_directory=root_directory
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@port=port
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end
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def file_system_images_in_directory
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image_files=[]
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Dir.foreach(@root_directory) do |filename|
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image_files<< RipXplore.best_fit_from_filename("#{@root_directory}/#{filename}") if FileSystemImage.is_file_system_image_filename?(filename)
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end
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image_files
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end
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def start
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@server_thread=Thread.start do
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@socket=UDPSocket.open
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@socket.bind("",port)
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log_msg("serving #{root_directory} on UDP port #{port}")
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loop do
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data,addr_info=@socket.recvfrom(4096)
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client_port=addr_info[1]
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client_ip=addr_info[3]
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log_msg "#{data.length} bytes received from #{client_ip}:#{client_port}"
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begin
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request=TNDP.message_from_buffer(data)
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log_msg(request.to_s)
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case request.opcode
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when TNDP::CapabilitiesRequestMessage::OPCODE
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supported_architectures={}
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file_system_images_in_directory.each do |file_system_image|
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if file_system_image.image_format.host_system==Apple2
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then
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architecture_id=TNDP::SYSTEM_ARCHITECTURES[:apple2 ]
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elsif file_system_image.image_format.host_system==C64 then
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architecture_id=TNDP::SYSTEM_ARCHITECTURES[:c64]
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else
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architecture_id=TNDP::SYSTEM_ARCHITECTURES[:other]
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end
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supported_architectures[architecture_id]=1+TNDP.coalesce(supported_architectures[architecture_id],0)
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end
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response=TNDP::CapabilitiesResponseMessage.new({:supported_architectures=>supported_architectures})
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when TNDP::VolumeCatalogRequestMessage::OPCODE
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response=TNDP::VolumeCatalogResponseMessage.new()
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else
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response=TNDP::ErrorResponseMessage.create_error_response(data,TNDP::ErrorCodes::UNKNOWN_OPCODE,"unknown opcode 0x#{"%02X" % request.opcode}")
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end
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response.transaction_id=request.transaction_id
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rescue Exception=>e
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response=TNDP::ErrorResponseMessage.create_error_response(data,TNDP::ErrorCodes::INTERNAL_SERVER_ERROR,e.to_s)
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end
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log_msg("Response:")
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log_msg(response.to_s)
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@socket.send(response.to_buffer,0,client_ip,client_port)
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end
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end
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end
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def shutdown
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log_msg("TNDP server on UDP port #{port} shutting down")
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@server_thread.kill
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end
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end |