3 require 'rbot/messagemapper'
5 # base class for all rbot plugins
6 # certain methods will be called if they are provided, if you define one of
7 # the following methods, it will be called as appropriate:
9 # map(template, options)::
10 # map is the new, cleaner way to respond to specific message formats
11 # without littering your plugin code with regexps
13 # plugin.map 'karmastats', :action => 'karma_stats'
15 # # while in the plugin...
16 # def karma_stats(m, params)
20 # # the default action is the first component
23 # # attributes can be pulled out of the match string
24 # plugin.map 'karma for :key'
25 # plugin.map 'karma :key'
27 # # while in the plugin...
28 # def karma(m, params)
30 # m.reply 'karma for #{item}'
33 # # you can setup defaults, to make parameters optional
34 # plugin.map 'karma :key', :defaults => {:key => 'defaultvalue'}
36 # # the default auth check is also against the first component
37 # # but that can be changed
38 # plugin.map 'karmastats', :auth => 'karma'
40 # # maps can be restricted to public or private message:
41 # plugin.map 'karmastats', :private false,
42 # plugin.map 'karmastats', :public false,
45 # To activate your maps, you simply register them
46 # plugin.register_maps
47 # This also sets the privmsg handler to use the map lookups for
48 # handling messages. You can still use listen(), kick() etc methods
50 # listen(UserMessage)::
51 # Called for all messages of any type. To
52 # differentiate them, use message.kind_of? It'll be
53 # either a PrivMessage, NoticeMessage, KickMessage,
54 # QuitMessage, PartMessage, JoinMessage, NickMessage,
57 # privmsg(PrivMessage)::
58 # called for a PRIVMSG if the first word matches one
59 # the plugin register()d for. Use m.plugin to get
60 # that word and m.params for the rest of the message,
64 # Called when a user (or the bot) is kicked from a
65 # channel the bot is in.
68 # Called when a user (or the bot) joins a channel
71 # Called when a user (or the bot) parts a channel
74 # Called when a user (or the bot) quits IRC
77 # Called when a user (or the bot) changes Nick
78 # topic(TopicMessage)::
79 # Called when a user (or the bot) changes a channel
82 # save:: Called when you are required to save your plugin's
83 # state, if you maintain data between sessions
85 # cleanup:: called before your plugin is "unloaded", prior to a
86 # plugin reload or bot quit - close any open
87 # files/connections or flush caches here
89 attr_reader :bot # the associated bot
90 # initialise your plugin. Always call super if you override this method,
91 # as important variables are set up for you
95 @handler = MessageMapper.new(self)
96 @registry = BotRegistryAccessor.new(@bot, self.class.to_s.gsub(/^.*::/, ""))
102 name = @handler.last.items[0]
104 unless self.respond_to?('privmsg')
111 # return an identifier for this plugin, defaults to a list of the message
112 # prefixes handled (used for error messages etc)
117 # return a help string for your module. for complex modules, you may wish
118 # to break your help into topics, and return a list of available topics if
119 # +topic+ is nil. +plugin+ is passed containing the matching prefix for
120 # this message - if your plugin handles multiple prefixes, make sure your
121 # return the correct help for the prefix requested
122 def help(plugin, topic)
126 # register the plugin as a handler for messages prefixed +name+
127 # this can be called multiple times for a plugin to handle multiple
130 return if Plugins.plugins.has_key?(name)
131 Plugins.plugins[name] = self
135 # default usage method provided as a utility for simple plugins. The
136 # MessageMapper uses 'usage' as its default fallback method.
137 def usage(m, params = {})
138 m.reply "incorrect usage, ask for help using '#{@bot.nick}: help #{m.plugin}'"
143 # class to manage multiple plugins and delegate messages to them for
146 # hash of registered message prefixes and associated plugins
148 # associated IrcBot class
151 # bot:: associated IrcBot class
152 # dirlist:: array of directories to scan (in order) for plugins
154 # create a new plugin handler, scanning for plugins in +dirlist+
155 def initialize(bot, dirlist)
161 # access to associated bot
166 # access to list of plugins
171 # load plugins from pre-assigned list of directories
174 dirs << Config::DATADIR + "/plugins"
177 if(FileTest.directory?(dir))
180 next if(file =~ /^\./)
181 next unless(file =~ /\.rb$/)
182 @tmpfilename = "#{dir}/#{file}"
184 # create a new, anonymous module to "house" the plugin
185 # the idea here is to prevent namespace pollution. perhaps there
187 plugin_module = Module.new
190 plugin_string = IO.readlines(@tmpfilename).join("")
191 debug "loading module: #{@tmpfilename}"
192 plugin_module.module_eval(plugin_string)
193 rescue StandardError, NameError, LoadError, SyntaxError => err
194 puts "warning: plugin #{@tmpfilename} load failed: " + err
195 puts err.backtrace.join("\n")
202 # call the save method for each active plugin
207 # call the cleanup method for each active plugin
212 # drop all plugins and rescan plugins on disk
213 # calls save and cleanup for each plugin before dropping them
221 # return list of help topics (plugin names)
223 if(@@plugins.length > 0)
224 # return " [plugins: " + @@plugins.keys.sort.join(", ") + "]"
225 return " [#{length} plugins: " + @@plugins.values.uniq.collect{|p| p.name}.sort.join(", ") + "]"
227 return " [no plugins active]"
232 @@plugins.values.uniq.length
235 # return help for +topic+ (call associated plugin's help method)
237 if(topic =~ /^(\S+)\s*(.*)$/)
240 if(@@plugins.has_key?(key))
242 return @@plugins[key].help(key, params)
243 rescue StandardError, NameError, SyntaxError => err
244 puts "plugin #{@@plugins[key].name} help() failed: " + err
245 puts err.backtrace.join("\n")
253 # see if each plugin handles +method+, and if so, call it, passing
254 # +message+ as a parameter
255 def delegate(method, *args)
256 @@plugins.values.uniq.each {|p|
257 if(p.respond_to? method)
260 rescue StandardError, NameError, SyntaxError => err
261 puts "plugin #{p.name} #{method}() failed: " + err
262 puts err.backtrace.join("\n")
268 # see if we have a plugin that wants to handle this message, if so, pass
269 # it to the plugin and return true, otherwise false
271 return unless(m.plugin)
272 if (@@plugins.has_key?(m.plugin) &&
273 @@plugins[m.plugin].respond_to?("privmsg") &&
274 @@bot.auth.allow?(m.plugin, m.source, m.replyto))
276 @@plugins[m.plugin].privmsg(m)
277 rescue StandardError, NameError, SyntaxError => err
278 puts "plugin #{@@plugins[m.plugin].name} privmsg() failed: " + err
279 puts err.backtrace.join("\n")