Class: Ftpd::CommandHandlers

Inherits:
Object
  • Object
show all
Defined in:
lib/ftpd/command_handlers.rb

Overview

All FTP commands which the server supports are dispatched by this class.

Instance Method Summary collapse

Constructor Details

#initialize ⇒ CommandHandlers

Returns a new instance of CommandHandlers.



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# File 'lib/ftpd/command_handlers.rb', line 10

def initialize
  @commands = {}
end

Instance Method Details

#<<(command_handler) ⇒ Object

Add a command handler

Parameters:

  • command_handler (Command) 


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# File 'lib/ftpd/command_handlers.rb', line 18

def <<(command_handler)
  command_handler.commands.each do |command|
    @commands[command] = command_handler
  end
end

#commands ⇒ Array<String>

Return the sorted list of commands supported by this handler

Returns:

  • (Array<String>) —

    Lowercase command



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# File 'lib/ftpd/command_handlers.rb', line 50

def commands
  @commands.keys.sort
end

#execute(command, argument) ⇒ Object

Dispatch a command to the appropriate command handler.

Parameters:

  • command (String) —

    the command (e.g. “STOR”). Case insensitive.

  • argument (String) —

    The argument, or nil if there isn’t one.



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# File 'lib/ftpd/command_handlers.rb', line 40

def execute(command, argument)
  command = canonical_command(command)
  method = "cmd_#{command}"
  @commands[command.downcase].send(method, argument)
end

#has?(command) ⇒ Boolean

Returns truthy if the server supports the command.

Parameters:

  • command (String) —

    the command (e.g. “STOR”). Case insensitive.

Returns:

  • (Boolean) —

    truthy if the server supports the command.



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# File 'lib/ftpd/command_handlers.rb', line 28

def has?(command)
  command = canonical_command(command)
  @commands.has_key?(command)
end