2 BotConfig.register BotConfigArrayValue.new('plugins.blacklist',
3 :default => [], :wizard => false, :requires_restart => true,
4 :desc => "Plugins that should not be loaded")
6 require 'rbot/messagemapper'
8 # base class for all rbot plugins
9 # certain methods will be called if they are provided, if you define one of
10 # the following methods, it will be called as appropriate:
12 # map(template, options)::
13 # map!(template, options)::
14 # map is the new, cleaner way to respond to specific message formats
15 # without littering your plugin code with regexps. The difference
16 # between map and map! is that map! will not register the new command
17 # as an alternative name for the plugin.
21 # plugin.map 'karmastats', :action => 'karma_stats'
23 # # while in the plugin...
24 # def karma_stats(m, params)
28 # # the default action is the first component
31 # # attributes can be pulled out of the match string
32 # plugin.map 'karma for :key'
33 # plugin.map 'karma :key'
35 # # while in the plugin...
36 # def karma(m, params)
38 # m.reply 'karma for #{item}'
41 # # you can setup defaults, to make parameters optional
42 # plugin.map 'karma :key', :defaults => {:key => 'defaultvalue'}
44 # # the default auth check is also against the first component
45 # # but that can be changed
46 # plugin.map 'karmastats', :auth => 'karma'
48 # # maps can be restricted to public or private message:
49 # plugin.map 'karmastats', :private false,
50 # plugin.map 'karmastats', :public false,
53 # listen(UserMessage)::
54 # Called for all messages of any type. To
55 # differentiate them, use message.kind_of? It'll be
56 # either a PrivMessage, NoticeMessage, KickMessage,
57 # QuitMessage, PartMessage, JoinMessage, NickMessage,
60 # privmsg(PrivMessage)::
61 # called for a PRIVMSG if the first word matches one
62 # the plugin register()d for. Use m.plugin to get
63 # that word and m.params for the rest of the message,
67 # Called when a user (or the bot) is kicked from a
68 # channel the bot is in.
71 # Called when a user (or the bot) joins a channel
74 # Called when a user (or the bot) parts a channel
77 # Called when a user (or the bot) quits IRC
80 # Called when a user (or the bot) changes Nick
81 # topic(TopicMessage)::
82 # Called when a user (or the bot) changes a channel
85 # connect():: Called when a server is joined successfully, but
86 # before autojoin channels are joined (no params)
88 # save:: Called when you are required to save your plugin's
89 # state, if you maintain data between sessions
91 # cleanup:: called before your plugin is "unloaded", prior to a
92 # plugin reload or bot quit - close any open
93 # files/connections or flush caches here
95 attr_reader :bot # the associated bot
96 # initialise your plugin. Always call super if you override this method,
97 # as important variables are set up for you
101 @handler = MessageMapper.new(self)
102 @registry = BotRegistryAccessor.new(@bot, self.class.to_s.gsub(/^.*::/, ""))
106 # debug "Flushing #{@registry}"
111 # debug "Closing #{@registry}"
118 name = @handler.last.items[0]
120 unless self.respond_to?('privmsg')
130 name = @handler.last.items[0]
131 self.register name, {:hidden => true}
132 unless self.respond_to?('privmsg')
139 # return an identifier for this plugin, defaults to a list of the message
140 # prefixes handled (used for error messages etc)
145 # return a help string for your module. for complex modules, you may wish
146 # to break your help into topics, and return a list of available topics if
147 # +topic+ is nil. +plugin+ is passed containing the matching prefix for
148 # this message - if your plugin handles multiple prefixes, make sure your
149 # return the correct help for the prefix requested
150 def help(plugin, topic)
154 # register the plugin as a handler for messages prefixed +name+
155 # this can be called multiple times for a plugin to handle multiple
157 def register(name,opts={})
158 raise ArgumentError, "Second argument must be a hash!" unless opts.kind_of?(Hash)
159 return if Plugins.plugins.has_key?(name)
160 Plugins.plugins[name] = self
161 @names << name unless opts.fetch(:hidden, false)
164 # default usage method provided as a utility for simple plugins. The
165 # MessageMapper uses 'usage' as its default fallback method.
166 def usage(m, params = {})
167 m.reply "incorrect usage, ask for help using '#{@bot.nick}: help #{m.plugin}'"
172 # class to manage multiple plugins and delegate messages to them for
175 # hash of registered message prefixes and associated plugins
177 # associated IrcBot class
180 # bot:: associated IrcBot class
181 # dirlist:: array of directories to scan (in order) for plugins
183 # create a new plugin handler, scanning for plugins in +dirlist+
184 def initialize(bot, dirlist)
190 # access to associated bot
195 # access to list of plugins
200 # load plugins from pre-assigned list of directories
202 @blacklist = Array.new
203 @@bot.config['plugins.blacklist'].each { |p|
204 @blacklist << p+".rb"
209 @blacklist.each { |p|
210 processed[p.intern] = :blacklisted
213 dirs << Config::datadir + "/plugins"
215 dirs.reverse.each {|dir|
216 if(FileTest.directory?(dir))
219 next if(file =~ /^\./)
220 if processed.has_key?(file.intern)
221 @ignored << {:name => file, :dir => dir, :reason => processed[file.intern]}
224 if(file =~ /^(.+\.rb)\.disabled$/)
225 # GB: Do we want to do this? This means that a disabled plugin in a directory
226 # will disable in all subsequent directories. This was probably meant
227 # to be used before plugins.blacklist was implemented, so I think
228 # we don't need this anymore
229 processed[$1.intern] = :disabled
230 @ignored << {:name => $1, :dir => dir, :reason => processed[$1.intern]}
233 next unless(file =~ /\.rb$/)
234 tmpfilename = "#{dir}/#{file}"
236 # create a new, anonymous module to "house" the plugin
237 # the idea here is to prevent namespace pollution. perhaps there
239 plugin_module = Module.new
242 plugin_string = IO.readlines(tmpfilename).join("")
243 debug "loading plugin #{tmpfilename}"
244 plugin_module.module_eval(plugin_string)
245 processed[file.intern] = :loaded
246 rescue Exception => err
247 # rescue TimeoutError, StandardError, NameError, LoadError, SyntaxError => err
248 warning "plugin #{tmpfilename} load failed\n" + err.inspect
249 debug err.backtrace.join("\n")
250 bt = err.backtrace.select { |line|
251 line.match(/^(\(eval\)|#{tmpfilename}):\d+/)
254 el.gsub(/^\(eval\)(:\d+)(:in `.*')?(:.*)?/) { |m|
255 "#{tmpfilename}#{$1}#{$3}"
258 msg = err.to_str.gsub(/^\(eval\)(:\d+)(:in `.*')?(:.*)?/) { |m|
259 "#{tmpfilename}#{$1}#{$3}"
261 newerr = err.class.new(msg)
262 newerr.set_backtrace(bt)
263 # debug "Simplified error: " << newerr.inspect
264 # debug newerr.backtrace.join("\n")
265 @failed << { :name => file, :dir => dir, :reason => newerr }
266 # debug "Failures: #{@failed.inspect}"
273 # call the save method for each active plugin
275 delegate 'flush_registry'
279 # call the cleanup method for each active plugin
284 # drop all plugins and rescan plugins on disk
285 # calls save and cleanup for each plugin before dropping them
293 # return list of help topics (plugin names)
295 # Active plugins first
296 if(@@plugins.length > 0)
297 list = " [#{length} plugin#{'s' if length > 1}: " + @@plugins.values.uniq.collect{|p| p.name}.sort.join(", ")
299 list = " [no plugins active"
301 # Ignored plugins next
302 list << "; #{Underline}#{@ignored.length} plugin#{'s' if @ignored.length > 1} ignored#{Underline}: use #{Bold}help ignored plugins#{Bold} to see why" unless @ignored.empty?
303 # Failed plugins next
304 list << "; #{Reverse}#{@failed.length} plugin#{'s' if @failed.length > 1} failed to load#{Reverse}: use #{Bold}help failed plugins#{Bold} to see why" unless @failed.empty?
310 @@plugins.values.uniq.length
313 # return help for +topic+ (call associated plugin's help method)
316 when /fail(?:ed)?\s*plugins?.*(trace(?:back)?s?)?/
317 # debug "Failures: #{@failed.inspect}"
318 return "no plugins failed to load" if @failed.empty?
319 return (@failed.inject(Array.new) { |list, p|
320 list << "#{Bold}#{p[:name]}#{Bold} in #{p[:dir]} failed"
321 list << "with error #{p[:reason].class}: #{p[:reason]}"
322 list << "at #{p[:reason].backtrace.join(', ')}" if $1 and not p[:reason].backtrace.empty?
325 when /ignored?\s*plugins?/
326 return "no plugins were ignored" if @ignored.empty?
327 return (@ignored.inject(Array.new) { |list, p|
330 list << "#{p[:name]} in #{p[:dir]} (overruled by previous)"
332 list << "#{p[:name]} in #{p[:dir]} (#{p[:reason].to_s})"
336 when /^(\S+)\s*(.*)$/
339 if(@@plugins.has_key?(key))
341 return @@plugins[key].help(key, params)
342 rescue Exception => err
343 #rescue TimeoutError, StandardError, NameError, SyntaxError => err
344 error "plugin #{@@plugins[key].name} help() failed: #{err.class}: #{err}"
345 error err.backtrace.join("\n")
353 # see if each plugin handles +method+, and if so, call it, passing
354 # +message+ as a parameter
355 def delegate(method, *args)
356 @@plugins.values.uniq.each {|p|
357 if(p.respond_to? method)
360 rescue Exception => err
361 #rescue TimeoutError, StandardError, NameError, SyntaxError => err
362 error "plugin #{p.name} #{method}() failed: #{err.class}: #{err}"
363 error err.backtrace.join("\n")
369 # see if we have a plugin that wants to handle this message, if so, pass
370 # it to the plugin and return true, otherwise false
372 return unless(m.plugin)
373 if (@@plugins.has_key?(m.plugin) &&
374 @@plugins[m.plugin].respond_to?("privmsg") &&
375 @@bot.auth.allow?(m.plugin, m.source, m.replyto))
377 @@plugins[m.plugin].privmsg(m)
378 rescue Exception => err
379 #rescue TimeoutError, StandardError, NameError, SyntaxError => err
380 error "plugin #{@@plugins[m.plugin].name} privmsg() failed: #{err.class}: #{err}"
381 error err.backtrace.join("\n")