Revision ce98dac2
Added by Marc Dequènes over 13 years ago
- ID ce98dac2cc160cda69c76da624e6e21777b44128
| lib/cyborghood/cyborg/server.rb | ||
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require 'eventmachine'
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require 'cyborghood/cyborg/interface'
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require 'shellwords'
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module CyborgHood
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class Conversation < EventMachine::Protocols::LineAndTextProtocol
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private_class_method :new
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# don't rely on EventMachine's default, it may change one day
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MaxLineLength = 16*1024
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EOD = "\033[0J"
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def initialize(interface)
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@interface = interface
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super
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@config = Config.instance
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@split_data_mode = false
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@split_data_cmd = nil
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@split_data_cmd_args = []
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@split_data = []
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end
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def send_line(msg)
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send_data "#{msg}\r\n"
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send_data "#{msg}\n"
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logger.debug "Sent data [#{identifier}]: #{msg}"
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end
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def post_init
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| ... | ... | |
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end
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def receive_line(data)
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logger.debug "Received [#{identifier}]: #{data}"
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send_line @interface.instance.call(data)
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return if data.empty?
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if data == EOD
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logger.debug "Received EOD [#{identifier}]"
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exit_split_mode
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else
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if @split_data_mode
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logger.debug "Received data (split mode) [#{identifier}]: #{data}"
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@split_data << data
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else
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logger.debug "Received data [#{identifier}]: #{data}"
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begin
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cmd_parts = Shellwords.shellsplit(data)
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rescue
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logger.error "Error [#{identifier}]: syntax error"
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send_line "552 syntax error"
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return
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end
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cmd = cmd_parts.shift
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args = cmd_parts
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if @interface.is_split_mode_command? cmd
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enter_split_mode(cmd, args)
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else
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receive_command(cmd, args)
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end
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end
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end
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end
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def receive_command(cmd, args, data = nil)
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logger.debug "Executing command '#{cmd}' [#{identifier}]"
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send_line @interface.instance.call(cmd, args, data)
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end
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def receive_error(msg)
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def unbind
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logger.debug "Conversation finished with #{identifier}"
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end
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protected
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def enter_split_mode(cmd, args)
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if @split_data_mode
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logger.error "Error [#{identifier}]: already in split mode"
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send_line "551 protocol error"
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@split_data_mode = false
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@split_data_cmd = nil
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@split_data_cmd_args = []
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else
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logger.debug "Entered split mode for command '#{cmd}' [#{identifier}]"
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@split_data_mode = true
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@split_data_cmd = cmd
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@split_data_cmd_args = args
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end
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@split_data = []
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end
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def exit_split_mode
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if @split_data_mode
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logger.debug "Quit split mode for command '#{@split_data_cmd}' [#{identifier}]"
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receive_command(@split_data_cmd, @split_data_cmd_args, @split_data.join("\n"))
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else
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logger.error "Error [#{identifier}]: not in split mode"
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send_line "551 protocol error"
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end
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@split_data_mode = false
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@split_data_cmd = nil
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@split_data_cmd_args = []
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@split_data = []
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end
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end
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class ConversationUNIXSocket < Conversation
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Also available in: Unified diff
[evol] work on cyborg server protocol and API (refs #31)