4 # :title: RSS feed plugin for rbot
6 # Author:: Stanislav Karchebny <berkus@madfire.net>
7 # Author:: Ian Monroe <ian@monroe.nu>
8 # Author:: Mark Kretschmann <markey@web.de>
9 # Author:: Giuseppe Bilotta <giuseppe.bilotta@gmail.com>
11 # Copyright:: (C) 2004 Stanislav Karchebny
12 # Copyright:: (C) 2005 Ian Monroe, Mark Kretschmann
13 # Copyright:: (C) 2006-2007 Giuseppe Bilotta
15 # License:: MIT license
19 # Try to load rss/content/2.0 so we can access the data in <content:encoded>
22 require 'rss/content/2.0'
28 # Make an 'unique' ID for a given item, based on appropriate bot options
29 # Currently only suppored is bot.config['rss.show_updated']: when true, the
30 # description is included in the uid hashing, otherwise it's not
32 def RSS.item_uid_for_bot(item, opts={})
33 options = { :show_updated => true}.merge(opts)
35 if options[:show_updated]
36 desc = item.content.content rescue item.description rescue nil
38 [(item.title.content rescue item.title rescue nil),
39 (item.link.href rescue item.link),
43 # Add support for Slashdot namespace in RDF. The code is just an adaptation
44 # of the DublinCore code.
45 unless defined?(SLASH_PREFIX)
46 SLASH_PREFIX = 'slash'
47 SLASH_URI = "http://purl.org/rss/1.0/modules/slash/"
49 RDF.install_ns(SLASH_PREFIX, SLASH_URI)
52 def append_features(klass)
55 return if klass.instance_of?(Module)
56 SlashModel::ELEMENT_NAME_INFOS.each do |name, plural_name|
57 plural = plural_name || "#{name}s"
58 full_name = "#{SLASH_PREFIX}_#{name}"
59 full_plural_name = "#{SLASH_PREFIX}_#{plural}"
60 klass_name = "Slash#{Utils.to_class_name(name)}"
62 # This will fail with older version of the Ruby RSS module
64 klass.install_have_children_element(name, SLASH_URI, "*",
65 full_name, full_plural_name)
66 klass.install_must_call_validator(SLASH_PREFIX, SLASH_URI)
68 klass.module_eval("install_have_children_element(#{full_name.dump}, #{full_plural_name.dump})")
71 klass.module_eval(<<-EOC, *get_file_and_line_from_caller(0))
72 remove_method :#{full_name} if method_defined? :#{full_name}
73 remove_method :#{full_name}= if method_defined? :#{full_name}=
74 remove_method :set_#{full_name} if method_defined? :set_#{full_name}
77 @#{full_name}.first and @#{full_name}.first.value
80 def #{full_name}=(new_value)
81 @#{full_name}[0] = Utils.new_with_value_if_need(#{klass_name}, new_value)
83 alias set_#{full_name} #{full_name}=
100 ELEMENT_NAME_INFOS = SlashModel::TEXT_ELEMENTS.to_a
102 ELEMENTS = TEXT_ELEMENTS.keys
104 ELEMENTS.each do |name, plural_name|
105 module_eval(<<-EOC, *get_file_and_line_from_caller(0))
106 class Slash#{Utils.to_class_name(name)} < Element
121 @tag_name = #{name.dump}
123 alias_method(:value, :content)
124 alias_method(:value=, :content=)
126 def initialize(*args)
128 if Utils.element_initialize_arguments?(args)
132 self.content = args[0]
134 # Older Ruby RSS module
137 self.content = args[0]
142 tag_name_with_prefix(SLASH_PREFIX)
145 def maker_target(target)
149 def setup_maker_attributes(#{name})
150 #{name}.content = content
158 class Item; include SlashModel; end
161 SlashModel::ELEMENTS.each do |name|
162 class_name = Utils.to_class_name(name)
163 BaseListener.install_class_name(SLASH_URI, name, "Slash#{class_name}")
166 SlashModel::ELEMENTS.collect! {|name| "#{SLASH_PREFIX}_#{name}"}
172 attr_accessor :url, :handle, :type, :refresh_rate, :xml, :title, :items,
173 :mutex, :watchers, :last_fetched
175 def initialize(url,handle=nil,type=nil,watchers=[], xml=nil, lf = nil)
190 sanitize_watchers(watchers)
194 @mutex.synchronize do
197 @type ? @type.dup : nil,
199 @xml ? @xml.dup : nil,
204 # Downcase all watchers, possibly turning them into Strings if they weren't
205 def sanitize_watchers(list=@watchers)
218 @watchers.include?(who.downcase)
225 @mutex.synchronize do
226 @watchers << who.downcase
232 @mutex.synchronize do
233 @watchers.delete(who.downcase)
238 [@handle,@url,@type,@refresh_rate,@watchers]
241 def to_s(watchers=false)
243 a = self.to_a.flatten
247 a.compact.join(" | ")
251 class RSSFeedsPlugin < Plugin
252 Config.register Config::IntegerValue.new('rss.head_max',
253 :default => 100, :validate => Proc.new{|v| v > 0 && v < 200},
254 :desc => "How many characters to use of a RSS item header")
256 Config.register Config::IntegerValue.new('rss.text_max',
257 :default => 200, :validate => Proc.new{|v| v > 0 && v < 400},
258 :desc => "How many characters to use of a RSS item text")
260 Config.register Config::IntegerValue.new('rss.thread_sleep',
261 :default => 300, :validate => Proc.new{|v| v > 30},
262 :desc => "How many seconds to sleep before checking RSS feeds again")
264 Config.register Config::BooleanValue.new('rss.show_updated',
266 :desc => "Whether feed items for which the description was changed should be shown as new")
268 Config.register Config::BooleanValue.new('rss.show_links',
270 :desc => "Whether to display links from the text of a feed item.")
272 # We used to save the Mutex with the RssBlob, which was idiotic. And
273 # since Mutexes dumped in one version might not be resotrable in another,
274 # we need a few tricks to be able to restore data from other versions of Ruby
276 # When migrating 1.8.6 => 1.8.5, all we need to do is define an empty
277 # #marshal_load() method for Mutex. For 1.8.5 => 1.8.6 we need something
278 # dirtier, as seen later on in the initialization code.
279 unless Mutex.new.respond_to?(:marshal_load)
281 def marshal_load(str)
291 if @registry.has_key?(:feeds)
292 # When migrating from Ruby 1.8.5 to 1.8.6, dumped Mutexes may render the
293 # data unrestorable. If this happens, we patch the data, thus allowing
294 # the restore to work.
296 # This is actually pretty safe for a number of reasons:
297 # * the code is only called if standard marshalling fails
298 # * the string we look for is quite unlikely to appear randomly
299 # * if the string appears somewhere and the patched string isn't recoverable
300 # either, we'll get another (unrecoverable) error, which makes the rss
301 # plugin unsable, just like it was if no recovery was attempted
302 # * if the string appears somewhere and the patched string is recoverable,
303 # we may get a b0rked feed, which is eventually overwritten by a clean
304 # one, so the worst thing that can happen is that a feed update spams
306 @registry.recovery = Proc.new { |val|
307 patched = val.sub(":\v@mutexo:\nMutex", ":\v@mutexo:\vObject")
308 ret = Marshal.restore(patched)
309 ret.each_value { |blob|
315 @feeds = @registry[:feeds]
318 @registry.recovery = nil
320 @feeds.keys.grep(/[A-Z]/) { |k|
321 @feeds[k.downcase] = @feeds[k]
341 @feeds.select { |h, f| f.watched? }
350 unparsed = Hash.new()
353 # we don't want to save the mutex
354 unparsed[k].mutex = nil
356 @registry[:feeds] = unparsed
359 def stop_watch(handle)
360 if @watch.has_key?(handle)
362 debug "Stopping watch #{handle}"
363 @bot.timer.remove(@watch[handle])
364 @watch.delete(handle)
365 rescue Exception => e
366 report_problem("Failed to stop watch for #{handle}", e, nil)
372 @watch.each_key { |k|
377 def help(plugin,topic="")
380 "rss show #{Bold}handle#{Bold} [#{Bold}limit#{Bold}] : show #{Bold}limit#{Bold} (default: 5, max: 15) entries from rss #{Bold}handle#{Bold}; #{Bold}limit#{Bold} can also be in the form a..b, to display a specific range of items"
382 "rss list [#{Bold}handle#{Bold}] : list all rss feeds (matching #{Bold}handle#{Bold})"
384 "rss watched [#{Bold}handle#{Bold}] [in #{Bold}chan#{Bold}]: list all watched rss feeds (matching #{Bold}handle#{Bold}) (in channel #{Bold}chan#{Bold})"
385 when "who", "watches", "who watches"
386 "rss who watches [#{Bold}handle#{Bold}]]: list all watchers for rss feeds (matching #{Bold}handle#{Bold})"
388 "rss add #{Bold}handle#{Bold} #{Bold}url#{Bold} [#{Bold}type#{Bold}] : add a new rss called #{Bold}handle#{Bold} from url #{Bold}url#{Bold} (of type #{Bold}type#{Bold})"
390 "rss change #{Bold}what#{Bold} of #{Bold}handle#{Bold} to #{Bold}new#{Bold} : change the #{Underline}handle#{Underline}, #{Underline}url#{Underline}, #{Underline}type#{Underline} or #{Underline}refresh#{Underline} rate of rss called #{Bold}handle#{Bold} to value #{Bold}new#{Bold}"
391 when /^(del(ete)?|rm)$/
392 "rss del(ete)|rm #{Bold}handle#{Bold} : delete rss feed #{Bold}handle#{Bold}"
394 "rss replace #{Bold}handle#{Bold} #{Bold}url#{Bold} [#{Bold}type#{Bold}] : try to replace the url of rss called #{Bold}handle#{Bold} with #{Bold}url#{Bold} (of type #{Bold}type#{Bold}); only works if nobody else is watching it"
396 "rss forcereplace #{Bold}handle#{Bold} #{Bold}url#{Bold} [#{Bold}type#{Bold}] : replace the url of rss called #{Bold}handle#{Bold} with #{Bold}url#{Bold} (of type #{Bold}type#{Bold})"
398 "rss watch #{Bold}handle#{Bold} [#{Bold}url#{Bold} [#{Bold}type#{Bold}]] [in #{Bold}chan#{Bold}]: watch rss #{Bold}handle#{Bold} for changes (in channel #{Bold}chan#{Bold}); when the other parameters are present, the feed will be created if it doesn't exist yet"
400 "rss unwatch|rmwatch #{Bold}handle#{Bold} [in #{Bold}chan#{Bold}]: stop watching rss #{Bold}handle#{Bold} (in channel #{Bold}chan#{Bold}) for changes"
401 when /who(?: watche?s?)?/
402 "rss who watches #{Bold}handle#{Bold}: lists watches for rss #{Bold}handle#{Bold}"
404 "rss rewatch : restart threads that watch for changes in watched rss"
406 "manage RSS feeds: rss show|list|watched|add|change|del(ete)|rm|(force)replace|watch|unwatch|rmwatch|rewatch|who watches"
410 def report_problem(report, e=nil, m=nil)
411 if m && m.respond_to?(:reply)
418 debug e.backtrace.join("\n") if e.respond_to?(:backtrace)
422 def show_rss(m, params)
423 handle = params[:handle]
424 lims = params[:limit].to_s.match(/(\d+)(?:..(\d+))?/)
425 debug lims.to_a.inspect
427 ll = [[lims[1].to_i-1,lims[2].to_i-1].min, 0].max
428 ul = [[lims[1].to_i-1,lims[2].to_i-1].max, 14].min
429 rev = lims[1].to_i > lims[2].to_i
432 ul = [[lims[1].to_i-1, 0].max, 14].min
436 feed = @feeds.fetch(handle.downcase, nil)
438 m.reply "I don't know any feeds named #{handle}"
442 m.reply "lemme fetch it..."
444 we_were_watching = false
446 if @watch.key?(feed.handle)
447 # If a feed is being watched, we run the watcher thread
448 # so that all watchers can be informed of changes to
449 # the feed. Before we do that, though, we remove the
450 # show requester from the watchlist, if present, lest
451 # he gets the update twice.
452 if feed.watched_by?(m.replyto)
453 we_were_watching = true
454 feed.rm_watch(m.replyto)
456 @bot.timer.reschedule(@watch[feed.handle], 0)
458 feed.add_watch(m.replyto)
461 fetched = fetchRss(feed, m, false)
463 return unless fetched or feed.xml
464 if not fetched and feed.items
465 m.reply "using old data"
467 parsed = parseRss(feed, m)
468 m.reply "using old data" unless parsed
470 return unless feed.items
474 # We sort the feeds in freshness order (newer ones first)
475 items = freshness_sort(items)
479 m.reply "Channel : #{title}"
481 printFormattedRss(feed, item, {:places=>[m.replyto],:handle=>nil,:date=>true})
485 def itemDate(item,ex=nil)
486 return item.pubDate if item.respond_to?(:pubDate) and item.pubDate
487 return item.date if item.respond_to?(:date) and item.date
491 def freshness_sort(items)
494 itemDate(b, notime) <=> itemDate(a, notime)
498 def list_rss(m, params)
499 wanted = params[:handle]
501 @feeds.each { |handle, feed|
502 next if wanted and !handle.match(/#{wanted}/i)
503 reply << "#{feed.handle}: #{feed.url} (in format: #{feed.type ? feed.type : 'default'})"
504 (reply << " refreshing every #{Utils.secs_to_string(feed.refresh_rate)}") if feed.refresh_rate
505 (reply << " (watched)") if feed.watched_by?(m.replyto)
509 reply = "no feeds found"
510 reply << " matching #{wanted}" if wanted
512 m.reply reply, :max_lines => reply.length
515 def watched_rss(m, params)
516 wanted = params[:handle]
517 chan = params[:chan] || m.replyto
519 watchlist.each { |handle, feed|
520 next if wanted and !handle.match(/#{wanted}/i)
521 next unless feed.watched_by?(chan)
522 reply << "#{feed.handle}: #{feed.url} (in format: #{feed.type ? feed.type : 'default'})"
523 (reply << " refreshing every #{Utils.secs_to_string(feed.refresh_rate)}") if feed.refresh_rate
527 reply = "no watched feeds"
528 reply << " matching #{wanted}" if wanted
533 def who_watches(m, params)
534 wanted = params[:handle]
536 watchlist.each { |handle, feed|
537 next if wanted and !handle.match(/#{wanted}/i)
538 reply << "#{feed.handle}: #{feed.url} (in format: #{feed.type ? feed.type : 'default'})"
539 (reply << " refreshing every #{Utils.secs_to_string(feed.refresh_rate)}") if feed.refresh_rate
540 reply << ": watched by #{feed.watchers.join(', ')}"
544 reply = "no watched feeds"
545 reply << " matching #{wanted}" if wanted
550 def add_rss(m, params, force=false)
551 handle = params[:handle]
553 unless url.match(/https?/)
554 m.reply "I only deal with feeds from HTTP sources, so I can't use #{url} (maybe you forgot the handle?)"
558 if @feeds.fetch(handle.downcase, nil) && !force
559 m.reply "There is already a feed named #{handle} (URL: #{@feeds[handle.downcase].url})"
563 m.reply "You must specify both a handle and an url to add an RSS feed"
566 @feeds[handle.downcase] = RssBlob.new(url,handle,type)
567 reply = "Added RSS #{url} named #{handle}"
569 reply << " (format: #{type})"
575 def change_rss(m, params)
576 handle = params[:handle].downcase
577 feed = @feeds.fetch(handle, nil)
579 m.reply "No such feed with handle #{handle}"
582 case params[:what].intern
584 new = params[:new].downcase
585 if @feeds.key?(new) and @feeds[new]
586 m.reply "There already is a feed with handle #{new}"
589 feed.mutex.synchronize do
591 @feeds.delete(handle)
598 feed.mutex.synchronize do
603 new = nil if new == 'default'
604 feed.mutex.synchronize do
608 new = params[:new].to_i
609 new = nil if new == 0
610 feed.mutex.synchronize do
611 feed.refresh_rate = new
614 m.reply "Don't know how to change #{params[:what]} for feeds"
617 m.reply "Feed changed:"
618 list_rss(m, {:handle => handle})
621 def del_rss(m, params, pass=false)
622 feed = unwatch_rss(m, params, true)
625 m.reply "someone else is watching #{feed.handle}, I won't remove it from my list"
628 @feeds.delete(feed.handle.downcase)
633 def replace_rss(m, params)
634 handle = params[:handle]
635 if @feeds.key?(handle.downcase)
636 del_rss(m, {:handle => handle}, true)
638 if @feeds.key?(handle.downcase)
639 m.reply "can't replace #{feed.handle}"
641 add_rss(m, params, true)
645 def forcereplace_rss(m, params)
646 add_rss(m, params, true)
649 def watch_rss(m, params)
650 handle = params[:handle]
651 chan = params[:chan] || m.replyto
657 feed = @feeds.fetch(handle.downcase, nil)
659 if feed.add_watch(chan)
663 m.reply "Already watching #{feed.handle} in #{chan}"
666 m.reply "Couldn't watch feed #{handle} (no such feed found)"
670 def unwatch_rss(m, params, pass=false)
671 handle = params[:handle].downcase
672 chan = params[:chan] || m.replyto
673 unless @feeds.has_key?(handle)
674 m.reply("dunno that feed")
677 feed = @feeds[handle]
678 if feed.rm_watch(chan)
679 m.reply "#{chan} has been removed from the watchlist for #{feed.handle}"
681 m.reply("#{chan} wasn't watching #{feed.handle}") unless pass
689 def rewatch_rss(m=nil, params=nil)
690 if params and handle = params[:handle]
691 feed = @feeds.fetch(handle.downcase, nil)
693 @bot.timer.reschedule(@watch[feed.handle], 0)
696 m.reply _("no such feed %{handle}") % { :handle => handle } if m
701 # Read watches from list.
702 watchlist.each{ |handle, feed|
710 def watchRss(feed, m=nil)
711 if @watch.has_key?(feed.handle)
712 report_problem("watcher thread for #{feed.handle} is already running", nil, m)
716 status[:failures] = 0
719 tmout = feed.last_fetched + calculate_timeout(feed) - Time.now
720 tmout = 0 if tmout < 0
722 debug "scheduling a watcher for #{feed} in #{tmout} seconds"
723 @watch[feed.handle] = @bot.timer.add(tmout) {
724 debug "watcher for #{feed} wakes up"
725 failures = status[:failures]
727 debug "fetching #{feed}"
728 first_run = !feed.last_fetched
729 oldxml = feed.xml ? feed.xml.dup : nil
730 unless fetchRss(feed)
734 debug "first run for #{feed}, getting items"
736 elsif oldxml and oldxml == feed.xml
737 debug "xml for #{feed} didn't change"
738 failures -= 1 if failures > 0
741 debug "no previous items in feed #{feed}"
743 failures -= 1 if failures > 0
745 # This one is used for debugging
748 # These are used for checking new items vs old ones
749 uid_opts = { :show_updated => @bot.config['rss.show_updated'] }
750 oids = Set.new feed.items.map { |item|
751 uid = RSS.item_uid_for_bot(item, uid_opts)
753 debug [uid, item].inspect
754 debug [uid, otxt.last].inspect
758 unless parseRss(feed)
759 debug "no items in feed #{feed}"
762 debug "Checking if new items are available for #{feed}"
763 failures -= 1 if failures > 0
769 dispItems = feed.items.reject { |item|
770 uid = RSS.item_uid_for_bot(item, uid_opts)
772 if oids.include?(uid)
773 debug "rejecting old #{uid} #{item.inspect}"
774 debug [uid, txt].inspect
777 debug "accepting new #{uid} #{item.inspect}"
778 debug [uid, txt].inspect
779 warning "same text! #{txt}" if otxt.include?(txt)
784 if dispItems.length > 0
785 debug "Found #{dispItems.length} new items in #{feed}"
786 # When displaying watched feeds, publish them from older to newer
787 dispItems.reverse.each { |item|
788 printFormattedRss(feed, item)
791 debug "No new items found in #{feed}"
797 rescue Exception => e
798 error "Error watching #{feed}: #{e.inspect}"
799 debug e.backtrace.join("\n")
803 status[:failures] = failures
805 seconds = calculate_timeout(feed, failures)
806 debug "watcher for #{feed} going to sleep #{seconds} seconds.."
808 @bot.timer.reschedule(@watch[feed.handle], seconds)
810 warning "watcher for #{feed} failed to reschedule: #{$!.inspect}"
813 debug "watcher for #{feed} added"
816 def calculate_timeout(feed, failures = 0)
817 seconds = @bot.config['rss.thread_sleep']
818 feed.mutex.synchronize do
819 seconds = feed.refresh_rate if feed.refresh_rate
821 seconds *= failures + 1
822 seconds += seconds * (rand(100)-50)/100
826 def select_nonempty(*ar)
828 ret = ar.map { |i| (i && i.empty?) ? nil : i }.compact.first
829 (ret && ret.empty?) ? nil : ret
832 def printFormattedRss(feed, item, opts=nil)
834 places = feed.watchers
835 handle = "::#{feed.handle}:: "
838 places = opts[:places] if opts.key?(:places)
839 handle = opts[:handle].to_s if opts.key?(:handle)
840 if opts.key?(:date) && opts[:date]
841 if item.respond_to?(:updated)
842 if item.updated.content.class <= Time
843 date = item.updated.content.strftime("%Y/%m/%d %H:%M")
845 date = item.updated.content.to_s
847 elsif item.respond_to?(:source) and item.source.respond_to?(:updated)
848 if item.source.updated.content.class <= Time
849 date = item.source.updated.content.strftime("%Y/%m/%d %H:%M")
851 date = item.source.updated.content.to_s
853 elsif item.respond_to?(:pubDate)
854 if item.pubDate.class <= Time
855 date = item.pubDate.strftime("%Y/%m/%d %H:%M")
857 date = item.pubDate.to_s
859 elsif item.respond_to?(:date)
860 if item.date.class <= Time
861 date = item.date.strftime("%Y/%m/%d %H:%M")
863 date = item.date.to_s
873 # Twitters don't need a cap on the title length since they have a hard
874 # limit to 160 characters, and most of them are under 140 characters
875 tit_opt[:limit] = @bot.config['rss.head_max'] unless feed.type == 'twitter'
878 base_title = item.title.to_s.dup
879 # git changesets are SHA1 hashes (40 hex digits), way too long, get rid of them, as they are
880 # visible in the URL anyway
881 # TODO make this optional?
882 base_title.sub!(/^Changeset \[([\da-f]{40})\]:/) { |c| "(git commit)"} if feed.type == 'trac'
883 title = "#{Bold}#{base_title.ircify_html(tit_opt)}#{Bold}"
887 desc_opt[:limit] = @bot.config['rss.text_max']
888 desc_opt[:a_href] = :link_out if @bot.config['rss.show_links']
890 # We prefer content_encoded here as it tends to provide more html formatting
891 # for use with ircify_html.
892 if item.respond_to?(:content_encoded) && item.content_encoded
893 desc = item.content_encoded.ircify_html(desc_opt)
894 elsif item.respond_to?(:description) && item.description
895 desc = item.description.ircify_html(desc_opt)
897 if item.content.type == "html"
898 desc = item.content.content.ircify_html(desc_opt)
900 desc = item.content.content
901 if desc.size > desc_opt[:limit]
902 desc = desc.slice(0, desc_opt[:limit]) + "#{Reverse}...#{Reverse}"
907 link = item.link.href rescue item.link.chomp rescue nil
909 category = select_nonempty((item.category.content rescue nil), (item.dc_subject rescue nil))
910 author = select_nonempty((item.author.name.content rescue nil), (item.dc_creator rescue nil), (item.author rescue nil))
915 at = ((item.title && item.link) ? ' @ ' : '')
919 author += " " if author
920 abt = category ? "about #{category} " : ""
921 line1 = "#{handle}#{date}#{author}blogged #{abt}at #{link}"
922 line2 = "#{handle}#{title} - #{desc}"
924 author += " " if author
925 abt = category ? "under #{category} " : ""
926 line1 = "#{handle}#{date}#{author}added an image #{abt}at #{link}"
927 line2 = "#{handle}#{title} - #{desc}"
929 line1 = "#{handle}#{date}#{title} @ #{link}"
930 line2 = line2 = "#{handle}#{date}#{desc}"
932 author += " " if author
933 line1 = "#{handle}#{date}#{author}commited #{title} @ #{link}"
935 line1 = "#{handle}#{date}#{title}#{at}#{link}"
937 line1 = "#{handle}#{date}#{title}#{at}#{link} has been edited by #{author}. #{desc}"
939 line1 = "#{handle}#{date}Message #{title} sent by #{author}. #{desc}"
941 author = author.sub(/@\S+?\s*>/, "@...>") + ": " if author
942 line1 = "#{handle}#{date}#{author}#{title} @ #{link}"
943 unless item.title =~ /^(?:Changeset \[(?:[\da-f]+)\]|\(git commit\))/
944 line2 = "#{handle}#{date}#{desc}"
947 dept = "(from the #{item.slash_department} dept) " rescue nil
948 sec = " in section #{item.slash_section}" rescue nil
950 line1 = "#{handle}#{date}#{dept}#{title}#{at}#{link} (posted by #{author}#{sec})"
952 line1 = "#{handle}#{date}#{title}#{at}#{link}"
953 line1 << " (by #{author})" if author
956 @bot.say loc, line1, :overlong => :truncate
958 @bot.say loc, line2, :overlong => :truncate
962 def fetchRss(feed, m=nil, cache=true)
963 feed.last_fetched = Time.now
965 # Use 60 sec timeout, cause the default is too low
966 xml = @bot.httputil.get(feed.url,
970 rescue URI::InvalidURIError, URI::BadURIError => e
971 report_problem("invalid rss feed #{feed.url}", e, m)
974 report_problem("error getting #{feed.url}", e, m)
977 debug "fetched #{feed}"
979 report_problem("reading feed #{feed} failed", nil, m)
982 # Ok, 0.9 feeds are not supported, maybe because
983 # Netscape happily removed the DTD. So what we do is just to
984 # reassign the 0.9 RDFs to 1.0, and hope it goes right.
985 xml.gsub!("xmlns=\"http://my.netscape.com/rdf/simple/0.9/\"",
986 "xmlns=\"http://purl.org/rss/1.0/\"")
987 feed.mutex.synchronize do
993 def parseRss(feed, m=nil)
994 return nil unless feed.xml
995 feed.mutex.synchronize do
999 rss = RSS::Parser.parse(xml)
1000 debug "parsed and validated #{feed}"
1001 rescue RSS::InvalidRSSError
1002 ## do non validate parse for invalid RSS 1.0
1004 rss = RSS::Parser.parse(xml, false)
1005 debug "parsed but not validated #{feed}"
1006 rescue RSS::Error => e
1007 report_problem("parsing rss stream failed, whoops =(", e, m)
1010 rescue RSS::Error => e
1011 report_problem("parsing rss stream failed, oioi", e, m)
1014 report_problem("processing error occured, sorry =(", e, m)
1019 report_problem("#{feed} does not include RSS 1.0 or 0.9x/2.0", nil, m)
1022 rss.output_encoding = 'UTF-8'
1023 rescue RSS::UnknownConvertMethod => e
1024 report_problem("bah! something went wrong =(", e, m)
1027 if rss.respond_to? :channel
1028 rss.channel.title ||= "Unknown"
1029 title = rss.channel.title
1031 title = rss.title.content
1033 rss.items.each do |item|
1034 item.title ||= "Unknown"
1040 report_problem("no items found in the feed, maybe try weed?", e, m)
1050 plugin = RSSFeedsPlugin.new
1052 plugin.default_auth( 'edit', false )
1053 plugin.default_auth( 'edit:add', true)
1055 plugin.map 'rss show :handle :limit',
1056 :action => 'show_rss',
1057 :requirements => {:limit => /^\d+(?:\.\.\d+)?$/},
1058 :defaults => {:limit => 5}
1059 plugin.map 'rss list :handle',
1060 :action => 'list_rss',
1061 :defaults => {:handle => nil}
1062 plugin.map 'rss watched :handle [in :chan]',
1063 :action => 'watched_rss',
1064 :defaults => {:handle => nil}
1065 plugin.map 'rss who watches :handle',
1066 :action => 'who_watches',
1067 :defaults => {:handle => nil}
1068 plugin.map 'rss add :handle :url :type',
1069 :action => 'add_rss',
1070 :auth_path => 'edit',
1071 :defaults => {:type => nil}
1072 plugin.map 'rss change :what of :handle to :new',
1073 :action => 'change_rss',
1074 :auth_path => 'edit',
1075 :requirements => { :what => /handle|url|format|type|refresh/ }
1076 plugin.map 'rss change :what for :handle to :new',
1077 :action => 'change_rss',
1078 :auth_path => 'edit',
1079 :requirements => { :what => /handle|url|format|type|refesh/ }
1080 plugin.map 'rss del :handle',
1081 :auth_path => 'edit:rm!',
1082 :action => 'del_rss'
1083 plugin.map 'rss delete :handle',
1084 :auth_path => 'edit:rm!',
1085 :action => 'del_rss'
1086 plugin.map 'rss rm :handle',
1087 :auth_path => 'edit:rm!',
1088 :action => 'del_rss'
1089 plugin.map 'rss replace :handle :url :type',
1090 :auth_path => 'edit',
1091 :action => 'replace_rss',
1092 :defaults => {:type => nil}
1093 plugin.map 'rss forcereplace :handle :url :type',
1094 :auth_path => 'edit',
1095 :action => 'forcereplace_rss',
1096 :defaults => {:type => nil}
1097 plugin.map 'rss watch :handle [in :chan]',
1098 :action => 'watch_rss',
1099 :defaults => {:url => nil, :type => nil}
1100 plugin.map 'rss watch :handle :url :type [in :chan]',
1101 :action => 'watch_rss',
1102 :defaults => {:url => nil, :type => nil}
1103 plugin.map 'rss unwatch :handle [in :chan]',
1104 :action => 'unwatch_rss'
1105 plugin.map 'rss rmwatch :handle [in :chan]',
1106 :action => 'unwatch_rss'
1107 plugin.map 'rss rewatch [:handle]',
1108 :action => 'rewatch_rss'