diff options
Diffstat (limited to 'data/rbot/plugins/rss.rb')
| -rw-r--r-- | data/rbot/plugins/rss.rb | 420 |
1 files changed, 420 insertions, 0 deletions
diff --git a/data/rbot/plugins/rss.rb b/data/rbot/plugins/rss.rb new file mode 100644 index 00000000..74f78e0d --- /dev/null +++ b/data/rbot/plugins/rss.rb @@ -0,0 +1,420 @@ +# RSS feed plugin for RubyBot
+# (c) 2004 Stanislav Karchebny <berkus@madfire.net>
+# (c) 2005 Ian Monroe <ian@monroe.nu>
+# (c) 2005 Mark Kretschmann <markey@web.de>
+# Licensed under MIT License.
+
+require 'rss/parser'
+require 'rss/1.0'
+require 'rss/2.0'
+require 'rss/dublincore'
+begin
+ # require 'rss/dublincore/2.0'
+rescue
+ warning "Unable to load RSS libraries, RSS plugin functionality crippled"
+end
+
+class ::String
+ def shorten(limit)
+ if self.length > limit
+ self+". " =~ /^(.{#{limit}}[^.!;?]*[.!;?])/mi
+ return $1
+ end
+ self
+ end
+
+ def riphtml
+ self.gsub(/<[^>]+>/, '').gsub(/&/,'&').gsub(/"/,'"').gsub(/</,'<').gsub(/>/,'>').gsub(/&ellip;/,'...').gsub(/'/, "'").gsub("\n",'')
+ end
+
+ def mysqlize
+ self.gsub(/'/, "''")
+ end
+end
+
+
+class RSSFeedsPlugin < Plugin
+ @@watchThreads = Hash.new
+
+ # Keep a 1:1 relation between commands and handlers
+ @@handlers = {
+ "rss" => "handle_rss",
+ "addrss" => "handle_addrss",
+ "rmrss" => "handle_rmrss",
+ "listrss" => "handle_listrss",
+ "listwatches" => "handle_listrsswatch",
+ "rewatch" => "handle_rewatch",
+ "watchrss" => "handle_watchrss",
+ "rmwatch" => "handle_rmwatch"
+ }
+
+ def initialize
+ super
+ @feeds = Hash.new
+ @watchList = Hash.new
+ begin
+ IO.foreach("#{@bot.botclass}/rss/feeds") { |line|
+ s = line.chomp.split("|", 2)
+ @feeds[s[0]] = s[1]
+ }
+ rescue
+ log "no feeds";
+ end
+ begin
+ IO.foreach("#{@bot.botclass}/rss/watchlist") { |line|
+ s = line.chomp.split("|", 3)
+ @watchList[s[0]] = [s[1], s[2]]
+ watchRss( s[2], s[0], s[1] )
+ }
+ rescue
+ log "no watchlist"
+ end
+
+ end
+
+ def cleanup
+ kill_threads
+ end
+
+ def save
+ Dir.mkdir("#{@bot.botclass}/rss") if not FileTest.directory?("#{@bot.botclass}/rss")
+ File.open("#{@bot.botclass}/rss/feeds", "w") { |file|
+ @feeds.each { |k,v|
+ file.puts(k + "|" + v)
+ }
+ }
+ File.open("#{@bot.botclass}/rss/watchlist", "w") { |file|
+ @watchList.each { |url, d|
+ feedFormat = d[0] || ''
+ whichChan = d[1] || 'markey'
+ file.puts(url + '|' + feedFormat + '|' + whichChan)
+ }
+ }
+ end
+
+ def kill_threads
+ Thread.critical=true
+ # Abort all running threads.
+ @@watchThreads.each { |url, thread|
+ debug "Killing thread for #{url}"
+ thread.kill
+ }
+ # @@watchThreads.each { |url, thread|
+ # debug "Joining on killed thread for #{url}"
+ # thread.join
+ # }
+ @@watchThreads = Hash.new
+ Thread.critical=false
+ end
+
+ def help(plugin,topic="")
+ "RSS Reader: rss name [limit] => read a named feed [limit maximum posts, default 5], addrss [force] name url => add a feed, listrss => list all available feeds, rmrss name => remove the named feed, watchrss url [type] => watch a rss feed for changes (type may be 'amarokblog', 'amarokforum', 'mediawiki', 'gmame' or empty - it defines special formatting of feed items), rewatch => restart all rss watches, rmwatch url => stop watching for changes in url, listwatches => see a list of watched feeds"
+ end
+
+ def privmsg(m)
+ meth = self.method(@@handlers[m.plugin])
+ meth.call(m)
+ end
+
+ def handle_rss(m)
+ unless m.params
+ m.reply("incorrect usage: " + help(m.plugin))
+ return
+ end
+ limit = 5
+ if m.params =~ /\s+(\d+)$/
+ limit = $1.to_i
+ if limit < 1 || limit > 15
+ m.reply("weird, limit not in [1..15], reverting to default")
+ limit = 5
+ end
+ m.params.gsub!(/\s+\d+$/, '')
+ end
+
+ url = ''
+ if m.params =~ /^http:\/\//
+ url = m.params
+ else
+ unless @feeds.has_key?(m.params)
+ m.reply(m.params + "? what is that feed about?")
+ return
+ end
+ url = @feeds[m.params]
+ end
+
+ m.reply("Please wait, querying...")
+ title = ''
+ items = fetchRSS(m.replyto, url, title)
+ if(items == nil)
+ return
+ end
+ m.reply("Channel : #{title}")
+ # FIXME: optional by-date sorting if dates present
+ items[0...limit].each do |item|
+ printRSSItem(m.replyto,item)
+ end
+ end
+
+ def handle_addrss(m)
+ unless m.params
+ m.reply "incorrect usage: " + help(m.plugin)
+ return
+ end
+ if m.params =~ /^force /
+ forced = true
+ m.params.gsub!(/^force /, '')
+ end
+ feed = m.params.scan(/^(\S+)\s+(\S+)$/)
+ unless feed.length == 1 && feed[0].length == 2
+ m.reply("incorrect usage: " + help(m.plugin))
+ return
+ end
+ if @feeds.has_key?(feed[0][0]) && !forced
+ m.reply("But there is already a feed named #{feed[0][0]} with url #{@feeds[feed[0][0]]}")
+ return
+ end
+ feed[0][0].gsub!("|", '_')
+ @feeds[feed[0][0]] = feed[0][1]
+ m.reply("RSS: Added #{feed[0][1]} with name #{feed[0][0]}")
+ end
+
+ def handle_rmrss(m)
+ unless m.params
+ m.reply "incorrect usage: " + help(m.plugin)
+ return
+ end
+ unless @feeds.has_key?(m.params)
+ m.reply("dunno that feed")
+ return
+ end
+ @feeds.delete(m.params)
+ @bot.okay(m.replyto)
+ end
+
+ def handle_rmwatch(m)
+ unless m.params
+ m.reply "incorrect usage: " + help(m.plugin)
+ return
+ end
+ unless @watchList.has_key?(m.params)
+ m.reply("no such watch")
+ return
+ end
+ unless @watchList[m.params][1] == m.replyto
+ m.reply("no such watch for this channel/nick")
+ return
+ end
+ @watchList.delete(m.params)
+ Thread.critical=true
+ if @@watchThreads[m.params].kind_of? Thread
+ @@watchThreads[m.params].kill
+ debug "rmwatch: Killed thread for #{m.params}"
+ # @@watchThreads[m.params].join
+ # debug "rmwatch: Joined killed thread for #{m.params}"
+ @@watchThreads.delete(m.params)
+ end
+ Thread.critical=false
+ @bot.okay(m.replyto)
+ end
+
+ def handle_listrss(m)
+ reply = ''
+ if @feeds.length == 0
+ reply = "No feeds yet."
+ else
+ @feeds.each { |k,v|
+ reply << k + ": " + v + "\n"
+ }
+ end
+ m.reply(reply)
+ end
+
+ def handle_listrsswatch(m)
+ reply = ''
+ if @watchList.length == 0
+ reply = "No watched feeds yet."
+ else
+ @watchList.each { |url,v|
+ reply << url + " for " + v[1] + " (in format: " + (v[0]?v[0]:"default") + ")\n"
+ }
+ end
+ m.reply(reply)
+ end
+
+ def handle_rewatch(m)
+ kill_threads
+
+ # Read watches from list.
+ @watchList.each{ |url, d|
+ feedFormat = d[0]
+ whichChan = d[1]
+ watchRss(whichChan, url,feedFormat)
+ }
+ @bot.okay(m.replyto)
+ end
+
+ def handle_watchrss(m)
+ unless m.params
+ m.reply "incorrect usage: " + help(m.plugin)
+ return
+ end
+ feed = m.params.scan(/^(\S+)\s+(\S+)$/)
+ url = feed[0][0]
+ feedFormat = feed[0][1]
+ if @watchList.has_key?(url)
+ m.reply("But there is already a watch for feed #{url} on chan #{@watchList[url][1]}")
+ return
+ end
+ @watchList[url] = [feedFormat, m.replyto]
+ watchRss(m.replyto, url,feedFormat)
+ @bot.okay(m.replyto)
+ end
+
+ private
+ def watchRss(whichChan, url, feedFormat)
+ if @@watchThreads.has_key?(url)
+ @bot.say whichChan, "ERROR: watcher thread for #{url} is already running! #{@@watchThreads[url]}"
+ return
+ end
+ @@watchThreads[url] = Thread.new do
+ debug 'watchRss thread started.'
+ oldItems = []
+ firstRun = true
+ loop do
+ begin
+ title = ''
+ debug 'Fetching rss feed..'
+ newItems = fetchRSS(whichChan, url, title)
+ if( newItems.empty? )
+ @bot.say whichChan, "Oops - Item is empty"
+ break
+ end
+ debug "Checking if new items are available"
+ if (firstRun)
+ firstRun = false
+ else
+ newItems.each do |nItem|
+ showItem = true;
+ oldItems.each do |oItem|
+ if (nItem.to_s == oItem.to_s)
+ showItem = false
+ end
+ end
+ if showItem
+ debug "showing #{nItem.title}"
+ printFormatedRSS(whichChan, nItem,feedFormat)
+ else
+ debug "not showing #{nItem.title}"
+ break
+ end
+ end
+ end
+ oldItems = newItems
+ rescue Exception => e
+ error "IO failed: #{e.inspect}"
+ debug e.backtrace.join("\n")
+ end
+
+ seconds = 150 + rand(100)
+ debug "Thread going to sleep #{seconds} seconds.."
+ sleep seconds
+ end
+ end
+ end
+
+ def printRSSItem(whichChan,item)
+ if item.kind_of?(RSS::RDF::Item)
+ @bot.say whichChan, item.title.chomp.riphtml.shorten(20) + " @ " + item.link
+ else
+ @bot.say whichChan, "#{item.pubDate.to_s.chomp+": " if item.pubDate}#{item.title.chomp.riphtml.shorten(20)+" :: " if item.title}#{" @ "+item.link.chomp if item.link}"
+ end
+ end
+
+ def printFormatedRSS(whichChan,item, type)
+ case type
+ when 'amarokblog'
+ @bot.say whichChan, "::#{item.category.content} just blogged at #{item.link}::"
+ @bot.say whichChan, "::#{item.title.chomp.riphtml} - #{item.description.chomp.riphtml.shorten(60)}::"
+ when 'amarokforum'
+ @bot.say whichChan, "::Forum:: #{item.pubDate.to_s.chomp+": " if item.pubDate}#{item.title.chomp.riphtml+" :: " if item.title}#{" @ "+item.link.chomp if item.link}"
+ when 'mediawiki'
+ @bot.say whichChan, "::Wiki:: #{item.title} has been edited by #{item.dc_creator}. #{item.description.split("\n")[0].chomp.riphtml.shorten(60)} #{item.link} ::"
+ debug "mediawiki #{item.title}"
+ when "gmame"
+ @bot.say whichChan, "::amarok-devel:: Message #{item.title} sent by #{item.dc_creator}. #{item.description.split("\n")[0].chomp.riphtml.shorten(60)}::"
+ else
+ printRSSItem(whichChan,item)
+ end
+ end
+
+ def fetchRSS(whichChan, url, title)
+ begin
+ # Use 60 sec timeout, cause the default is too low
+ xml = Utils.http_get(url,60,60)
+ rescue URI::InvalidURIError, URI::BadURIError => e
+ @bot.say whichChan, "invalid rss feed #{url}"
+ return
+ end
+ debug 'fetched'
+ unless xml
+ @bot.say whichChan, "reading feed #{url} failed"
+ return
+ end
+
+ begin
+ ## do validate parse
+ rss = RSS::Parser.parse(xml)
+ debug 'parsed'
+ rescue RSS::InvalidRSSError
+ ## do non validate parse for invalid RSS 1.0
+ begin
+ rss = RSS::Parser.parse(xml, false)
+ rescue RSS::Error
+ @bot.say whichChan, "parsing rss stream failed, whoops =("
+ return
+ end
+ rescue RSS::Error
+ @bot.say whichChan, "parsing rss stream failed, oioi"
+ return
+ rescue => e
+ @bot.say whichChan, "processing error occured, sorry =("
+ debug e.inspect
+ debug e.backtrace.join("\n")
+ return
+ end
+ items = []
+ if rss.nil?
+ @bot.say whichChan, "#{m.params} does not include RSS 1.0 or 0.9x/2.0"
+ else
+ begin
+ rss.output_encoding = "euc-jp"
+ rescue RSS::UnknownConvertMethod
+ @bot.say whichChan, "bah! something went wrong =("
+ return
+ end
+ rss.channel.title ||= "Unknown"
+ title.replace(rss.channel.title)
+ rss.items.each do |item|
+ item.title ||= "Unknown"
+ items << item
+ end
+ end
+
+ if items.empty?
+ @bot.say whichChan, "no items found in the feed, maybe try weed?"
+ return
+ end
+ return items
+ end
+end
+
+plugin = RSSFeedsPlugin.new
+plugin.register("rss")
+plugin.register("addrss")
+plugin.register("rmrss")
+plugin.register("listrss")
+plugin.register("rewatch")
+plugin.register("watchrss")
+plugin.register("listwatches")
+plugin.register("rmwatch")
+
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