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#--
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# CyborgHood, a distributed system management software.
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# Copyright (c) 2009-2010 Marc Dequènes (Duck) <Duck@DuckCorp.org>
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#++
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require 'singleton'
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module CyborgHood
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class CyborgServerInterface
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include Singleton
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@split_mode_commands = []
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class << self
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attr_reader :split_mode_commands
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end
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def self.split_mode_command(*syms)
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new_split_mode_commands = self.split_mode_commands || []
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syms.each do |sym|
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raise CyberError.new(:unrecoverable, "programmation", "not a symbol") unless sym.is_a? Symbol
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raise CyberError.new(:unrecoverable, "programmation", "not an API method") unless api_method_name?(sym.to_s)
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new_split_mode_commands << sym
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end
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instance_variable_set(:@split_mode_commands, new_split_mode_commands)
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end
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def self.decompose_command(cmd)
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object, method = cmd.split('.', 2)
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if method
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begin
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klass = object.split('::').inject(self) {|scope, const_name| scope.const_get(const_name)}
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rescue
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return
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end
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else
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if object.index("::")
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return
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else
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klass = self
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method = cmd
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end
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end
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[klass, method]
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end
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def self.is_split_mode_command?(cmd)
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klass, method = decompose_command(cmd)
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return false if klass.nil?
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(klass.split_mode_commands || []).include? api_method_to_class_method_name(method)
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end
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def self.api_method_name?(method)
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method =~ /^api_(.+)$/
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$1
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end
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def self.api_method_to_class_method_name(method)
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"api_#{method}".to_sym
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end
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def initialize
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@config = Config.instance
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end
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def api_modules
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@modules ||= self.class.constants.select do |c|
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cc = self.class.const_get(c)
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cc.class == Class and cc.ancestors.include? CyborgServerInterface
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end
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end
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def api_methods
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@methods ||= self.methods.collect{|m| self.class.api_method_name?(m) }.compact
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end
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# preliminary incoming message handling
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def call(cmd, args, data)
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klass, method = self.class.decompose_command(cmd)
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return "551 unknown object" if klass.nil?
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inst = klass.instance
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unless inst.api_methods.include?(method)
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return "551 this object has no such method"
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end
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begin
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formated_data = data.to_yaml
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rescue
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return "552 wrong format for extra data"
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end
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begin
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# preliminary outgoing message handling
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real_method = self.class.api_method_to_class_method_name(method)
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r = inst.send(real_method, *args) { formated_data }
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r.to_yaml
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rescue
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return "550 method call failed"
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end
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end
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end
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class CyborgServerDefaultInterface < CyborgServerInterface
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PROTOCOL_VERSION = "0.1~"
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def api_product
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PRODUCT
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end
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def api_version
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VERSION
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end
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def api_protocol_version
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PROTOCOL_VERSION
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end
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def api_bot_name
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@config.bot_name
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end
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end
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end
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