summaryrefslogtreecommitdiff
path: root/lib/rbot/message.rb
blob: acfd5da3fc742cf081d7bdebe5c9f235fba658d8 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
#-- vim:sw=2:et
#++
#
# :title: IRC message datastructures

module Irc


  class Bot
    module Config
      Config.register ArrayValue.new('core.address_prefix',
        :default => [], :wizard => true,
        :desc => "what non nick-matching prefixes should the bot respond to as if addressed (e.g !, so that '!foo' is treated like 'rbot: foo')"
      )

      Config.register BooleanValue.new('core.reply_with_nick',
        :default => false, :wizard => true,
        :desc => "if true, the bot will prepend the nick to what he has to say when replying (e.g. 'markey: you can't do that!')"
      )

      Config.register StringValue.new('core.nick_postfix',
        :default => ':', :wizard => true,
        :desc => "when replying with nick put this character after the nick of the user the bot is replying to"
      )
    end
  end


  # Define standard IRC attriubtes (not so standard actually,
  # but the closest thing we have ...)
  Bold = "\002"
  Underline = "\037"
  Reverse = "\026"
  Italic = "\011"
  NormalText = "\017"

  # Color is prefixed by \003 and followed by optional
  # foreground and background specifications, two-digits-max
  # numbers separated by a comma. One of the two parts
  # must be present.
  Color = "\003"
  ColorRx = /#{Color}\d?\d?(?:,\d\d?)?/

  # Standard color codes
  ColorCode = {
    :black      => 1,
    :blue       => 2,
    :navyblue   => 2,
    :navy_blue  => 2,
    :green      => 3,
    :red        => 4,
    :brown      => 5,
    :purple     => 6,
    :olive      => 7,
    :yellow     => 8,
    :limegreen  => 9,
    :lime_green => 9,
    :teal       => 10,
    :aqualight  => 11,
    :aqua_light => 11,
    :royal_blue => 12,
    :hotpink    => 13,
    :hot_pink   => 13,
    :darkgray   => 14,
    :dark_gray  => 14,
    :lightgray  => 15,
    :light_gray => 15,
    :white      => 16
  }

  # Convert a String or Symbol into a color number
  def Irc.find_color(data)
    if Integer === data
      data
    else
      f = if String === data
            data.intern
          else
            data
          end
      if ColorCode.key?(f)
        ColorCode[f] 
      else
        0
      end
    end
  end

  # Insert the full color code for a given
  # foreground/background combination.
  def Irc.color(fg=nil,bg=nil)
    str = Color.dup
    if fg
     str << Irc.find_color(fg).to_s
    end
    if bg
      str << "," << Irc.find_color(bg).to_s
    end
    return str
  end

  # base user message class, all user messages derive from this
  # (a user message is defined as having a source hostmask, a target
  # nick/channel and a message part)
  class BasicUserMessage

    # associated bot
    attr_reader :bot

    # associated server
    attr_reader :server

    # when the message was received
    attr_reader :time

    # User that originated the message
    attr_reader :source

    # User/Channel message was sent to
    attr_reader :target

    # contents of the message
    attr_accessor :message

    # has the message been replied to/handled by a plugin?
    attr_accessor :replied

    # instantiate a new Message
    # bot::      associated bot class
    # server::   Server where the message took place
    # source::   User that sent the message
    # target::   User/Channel is destined for
    # message::  actual message
    def initialize(bot, server, source, target, message)
      @msg_wants_id = false unless defined? @msg_wants_id

      @time = Time.now
      @bot = bot
      @source = source
      @address = false
      @target = target
      @message = BasicUserMessage.stripcolour message
      @replied = false
      @server = server

      @identified = false
      if @msg_wants_id && @server.capabilities[:"identify-msg"]
        if @message =~ /^([-+])(.*)/
          @identified = ($1=="+")
          @message = $2
        else
          warning "Message does not have identification"
        end
      end

      if target && target == @bot.myself
        @address = true
      end

    end

    # Access the nick of the source
    #
    def sourcenick
      @source.nick rescue @source.to_s
    end

    # Access the user@host of the source
    #
    def sourceaddress
      "#{@source.user}@#{@source.host}" rescue @source.to_s
    end

    # Access the botuser corresponding to the source, if any
    #
    def botuser
      m.source.botuser rescue @bot.auth.everyone
    end


    # Was the message from an identified user?
    def identified?
      return @identified
    end

    # returns true if the message was addressed to the bot.
    # This includes any private message to the bot, or any public message
    # which looks like it's addressed to the bot, e.g. "bot: foo", "bot, foo",
    # a kick message when bot was kicked etc.
    def address?
      return @address
    end

    # has this message been replied to by a plugin?
    def replied?
      return @replied
    end

    # strip mIRC colour escapes from a string
    def BasicUserMessage.stripcolour(string)
      return "" unless string
      ret = string.gsub(ColorRx, "")
      #ret.tr!("\x00-\x1f", "")
      ret
    end

  end

  # class for handling IRC user messages. Includes some utilities for handling
  # the message, for example in plugins.
  # The +message+ member will have any bot addressing "^bot: " removed
  # (address? will return true in this case)
  class UserMessage < BasicUserMessage

    # for plugin messages, the name of the plugin invoked by the message
    attr_reader :plugin

    # for plugin messages, the rest of the message, with the plugin name
    # removed
    attr_reader :params

    # convenience member. Who to reply to (i.e. would be sourcenick for a
    # privately addressed message, or target (the channel) for a publicly
    # addressed message
    attr_reader :replyto

    # channel the message was in, nil for privately addressed messages
    attr_reader :channel

    # for PRIVMSGs, false unless the message was a CTCP command,
    # in which case it evaluates to the CTCP command itself
    # (TIME, PING, VERSION, etc). The CTCP command parameters
    # are then stored in the message.
    attr_reader :ctcp

    # for PRIVMSGs, true if the message was a CTCP ACTION (CTCP stuff
    # will be stripped from the message)
    attr_reader :action

    # instantiate a new UserMessage
    # bot::      associated bot class
    # source::   hostmask of the message source
    # target::   nick/channel message is destined for
    # message::  message part
    def initialize(bot, server, source, target, message)
      super(bot, server, source, target, message)
      @target = target
      @private = false
      @plugin = nil
      @ctcp = false
      @action = false

      if target == @bot.myself
        @private = true
        @address = true
        @channel = nil
        @replyto = source
      else
        @replyto = @target
        @channel = @target
      end

      # check for option extra addressing prefixes, e.g "|search foo", or
      # "!version" - first match wins
      bot.config['core.address_prefix'].each {|mprefix|
        if @message.gsub!(/^#{Regexp.escape(mprefix)}\s*/, "")
          @address = true
          break
        end
      }

      # even if they used above prefixes, we allow for silly people who
      # combine all possible types, e.g. "|rbot: hello", or
      # "/msg rbot rbot: hello", etc
      if @message.gsub!(/^\s*#{Regexp.escape(bot.nick)}\s*([:;,>]|\s)\s*/i, "")
        @address = true
      end

      if(@message =~ /^\001(\S+)(\s(.+))?\001/)
        @ctcp = $1
	# FIXME need to support quoting of NULL and CR/LF, see
	# http://www.irchelp.org/irchelp/rfc/ctcpspec.html
        @message = $3 || String.new
        @action = @ctcp == 'ACTION'
        debug "Received CTCP command #{@ctcp} with options #{@message} (action? #{@action})"
      end

      # free splitting for plugins
      @params = @message.dup
      if @params.gsub!(/^\s*(\S+)[\s$]*/, "")
        @plugin = $1.downcase
        @params = nil unless @params.length > 0
      end
    end

    # returns true for private messages, e.g. "/msg bot hello"
    def private?
      return @private
    end

    # returns true if the message was in a channel
    def public?
      return !@private
    end

    def action?
      return @action
    end

    # convenience method to reply to a message, useful in plugins. It's the
    # same as doing:
    # <tt>@bot.say m.replyto, string</tt>
    # So if the message is private, it will reply to the user. If it was
    # in a channel, it will reply in the channel.
    def plainreply(string, options={})
      @bot.say @replyto, string, options
      @replied = true
    end

    # Same as reply, but when replying in public it adds the nick of the user
    # the bot is replying to
    def nickreply(string, options={})
      extra = self.public? ? "#{@source}#{@bot.config['core.nick_postfix']} " : ""
      @bot.say @replyto, extra + string, options
      @replied = true
    end

    # the default reply style is to nickreply unless the reply already contains
    # the nick or core.reply_with_nick is set to false
    #
    def reply(string, options={})
      if @bot.config['core.reply_with_nick'] and not string =~ /\b#{@source}\b/
        return nickreply(string, options)
      end
      plainreply(string, options)
    end

    # convenience method to reply to a message with an action. It's the
    # same as doing:
    # <tt>@bot.action m.replyto, string</tt>
    # So if the message is private, it will reply to the user. If it was
    # in a channel, it will reply in the channel.
    def act(string, options={})
      @bot.action @replyto, string, options
      @replied = true
    end

    # send a CTCP response, i.e. a private NOTICE to the sender
    # with the same CTCP command and the reply as a parameter
    def ctcp_reply(string, options={})
      @bot.ctcp_notice @source, @ctcp, string, options
    end

    # convenience method to reply "okay" in the current language to the
    # message
    def plainokay
      self.plainreply @bot.lang.get("okay")
    end

    # Like the above, but append the username
    def nickokay
      str = @bot.lang.get("okay").dup
      if self.public?
        # remove final punctuation
        str.gsub!(/[!,.]$/,"")
        str += ", #{@source}"
      end
      self.plainreply str
    end

    # the default okay style is the same as the default reply style
    #
    def okay
      if @bot.config['core.reply_with_nick']
        return nickokay
      end
      plainokay
    end

  end

  # class to manage IRC PRIVMSGs
  class PrivMessage < UserMessage
    def initialize(bot, server, source, target, message)
      @msg_wants_id = true
      super
    end
  end

  # class to manage IRC NOTICEs
  class NoticeMessage < UserMessage
    def initialize(bot, server, source, target, message)
      @msg_wants_id = true
      super
    end
  end

  # class to manage IRC KICKs
  # +address?+ can be used as a shortcut to see if the bot was kicked,
  # basically, +target+ was kicked from +channel+ by +source+ with +message+
  class KickMessage < BasicUserMessage
    # channel user was kicked from
    attr_reader :channel

    def initialize(bot, server, source, target, channel, message="")
      super(bot, server, source, target, message)
      @channel = channel
    end
  end

  # class to pass IRC Nick changes in. @message contains the old nickame,
  # @sourcenick contains the new one.
  class NickMessage < BasicUserMessage
    def initialize(bot, server, source, oldnick, newnick)
      super(bot, server, source, oldnick, newnick)
    end

    def oldnick
      return @target
    end

    def newnick
      return @message
    end
  end

  class QuitMessage < BasicUserMessage
    def initialize(bot, server, source, target, message="")
      super(bot, server, source, target, message)
    end
  end

  class TopicMessage < BasicUserMessage
    # channel topic
    attr_reader :topic
    # topic set at (unixtime)
    attr_reader :timestamp
    # topic set on channel
    attr_reader :channel

    def initialize(bot, server, source, channel, topic=ChannelTopic.new)
      super(bot, server, source, channel, topic.text)
      @topic = topic
      @timestamp = topic.set_on
      @channel = channel
    end
  end

  # class to manage channel joins
  class JoinMessage < BasicUserMessage
    # channel joined
    attr_reader :channel
    def initialize(bot, server, source, channel, message="")
      super(bot, server, source, channel, message)
      @channel = channel
      # in this case sourcenick is the nick that could be the bot
      @address = (source == @bot.myself)
    end
  end

  # class to manage channel parts
  # same as a join, but can have a message too
  class PartMessage < JoinMessage
  end
end