]> git.netwichtig.de Git - user/henk/code/ruby/rbot.git/blobdiff - data/rbot/plugins/url.rb
shortenurls plugin: handle failing services by trying other services, and make return...
[user/henk/code/ruby/rbot.git] / data / rbot / plugins / url.rb
index 6d82099faaa30b0cc78ebe182f3ad978b74d558e..e3cecb6b0d5805654c4ff0fe831928dc5bba0566 100644 (file)
@@ -1,3 +1,8 @@
+#-- vim:sw=2:et
+#++
+#
+# :title: Url plugin
+
 define_structure :Url, :channel, :nick, :time, :url, :info
 
 class ::UrlLinkError < RuntimeError
@@ -6,27 +11,41 @@ end
 class UrlPlugin < Plugin
   TITLE_RE = /<\s*?title\s*?>(.+?)<\s*?\/title\s*?>/im
   LINK_INFO = "[Link Info]"
+  OUR_UNSAFE = Regexp.new("[^#{URI::PATTERN::UNRESERVED}#{URI::PATTERN::RESERVED}%# ]", false, 'N')
 
-  BotConfig.register BotConfigIntegerValue.new('url.max_urls',
+  Config.register Config::IntegerValue.new('url.max_urls',
     :default => 100, :validate => Proc.new{|v| v > 0},
     :desc => "Maximum number of urls to store. New urls replace oldest ones.")
-  BotConfig.register BotConfigBooleanValue.new('url.display_link_info',
-    :default => false,
-    :desc => "Get the title of any links pasted to the channel and display it (also tells if the link is broken or the site is down)")
-  BotConfig.register BotConfigBooleanValue.new('url.titles_only',
+  Config.register Config::IntegerValue.new('url.display_link_info',
+    :default => 0,
+    :desc => "Get the title of links pasted to the channel and display it (also tells if the link is broken or the site is down). Do it for at most this many links per line (set to 0 to disable)")
+  Config.register Config::BooleanValue.new('url.titles_only',
     :default => false,
     :desc => "Only show info for links that have <title> tags (in other words, don't display info for jpegs, mpegs, etc.)")
-  BotConfig.register BotConfigBooleanValue.new('url.first_par',
+  Config.register Config::BooleanValue.new('url.first_par',
     :default => false,
     :desc => "Also try to get the first paragraph of a web page")
-  BotConfig.register BotConfigBooleanValue.new('url.info_on_list',
+  Config.register Config::BooleanValue.new('url.info_on_list',
     :default => false,
     :desc => "Show link info when listing/searching for urls")
+  Config.register Config::ArrayValue.new('url.no_info_hosts',
+    :default => ['localhost', '^192\.168\.', '^10\.', '^127\.', '^172\.(1[6-9]|2\d|31)\.'],
+    :on_change => Proc.new { |bot, v| bot.plugins['url'].reset_no_info_hosts },
+    :desc => "A list of regular expressions matching hosts for which no info should be provided")
 
 
   def initialize
     super
     @registry.set_default(Array.new)
+    unless @bot.config['url.display_link_info'].kind_of?(Integer)
+      @bot.config.items[:'url.display_link_info'].set_string(@bot.config['url.display_link_info'].to_s)
+    end
+    reset_no_info_hosts
+  end
+
+  def reset_no_info_hosts
+    @no_info_hosts = Regexp.new(@bot.config['url.no_info_hosts'].join('|'), true)
+    debug "no info hosts regexp set to #{@no_info_hosts}"
   end
 
   def help(plugin, topic="")
@@ -38,11 +57,20 @@ class UrlPlugin < Plugin
     $1.ircify_html
   end
 
-  def get_title_for_url(uri_str)
+  def get_title_for_url(uri_str, nick = nil, channel = nil, ircline = nil)
 
     url = uri_str.kind_of?(URI) ? uri_str : URI.parse(uri_str)
     return if url.scheme !~ /https?/
 
+    if url.host =~ @no_info_hosts
+      return "Sorry, info retrieval for #{url.host} is disabled"
+    end
+
+    logopts = Hash.new
+    logopts[:nick] = nick if nick
+    logopts[:channel] = channel if channel
+    logopts[:ircline] = ircline if ircline
+
     title = nil
     extra = String.new
 
@@ -65,13 +93,22 @@ class UrlPlugin < Plugin
             #
             if @bot.config['url.first_par']
               partial = resp.partial_body(@bot.config['http.info_bytes'])
-              title = get_title_from_html(partial)
+              logopts[:title] = title = get_title_from_html(partial)
+              if url.fragment and not url.fragment.empty?
+                fragreg = /.*?<a\s+[^>]*name=["']?#{url.fragment}["']?.*?>/im
+                partial.sub!(fragreg,'')
+              end
               first_par = Utils.ircify_first_html_par(partial, :strip => title)
-              extra << ", #{Bold}text#{Bold}: #{first_par}" unless first_par.empty?
+              unless first_par.empty?
+                logopts[:extra] = first_par
+                extra << ", #{Bold}text#{Bold}: #{first_par}"
+              end
+              call_event(:url_added, url.to_s, logopts)
               return "#{Bold}title#{Bold}: #{title}#{extra}" if title
             else
               resp.partial_body(@bot.config['http.info_bytes']) { |part|
-                title = get_title_from_html(part)
+                logopts[:title] = title = get_title_from_html(part)
+                call_event(:url_added, url.to_s, logopts)
                 return "#{Bold}title#{Bold}: #{title}" if title
               }
             end
@@ -81,15 +118,24 @@ class UrlPlugin < Plugin
           end
 
           enc = resp['content-encoding']
-
-          extra << ", #{Bold}encoding#{Bold}: #{enc}" if enc
+          logopts[:extra] = String.new
+          logopts[:extra] << "Content Type: #{resp['content-type']}"
+          if enc
+            logopts[:extra] << ", encoding: #{enc}"
+            extra << ", #{Bold}encoding#{Bold}: #{enc}"
+          end
 
           unless @bot.config['url.titles_only']
             # content doesn't have title, just display info.
             size = resp['content-length'].gsub(/(\d)(?=\d{3}+(?:\.|$))(\d{3}\..*)?/,'\1,\2') rescue nil
-            size = size ? ", #{Bold}size#{Bold}: #{size} bytes" : ""
+            if size
+              logopts[:extra] << ", size: #{size} bytes"
+              size = ", #{Bold}size#{Bold}: #{size} bytes"
+            end
+            call_event(:url_added, url.to_s, logopts)
             return "#{Bold}type#{Bold}: #{resp['content-type']}#{size}#{extra}"
           end
+          call_event(:url_added, url.to_s, logopts)
         else
           raise UrlLinkError, "getting link (#{resp.code} - #{resp.message})"
         end
@@ -106,47 +152,68 @@ class UrlPlugin < Plugin
     end
   end
 
-  def listen(m)
-    return unless m.kind_of?(PrivMessage)
-    return if m.address?
-    # TODO support multiple urls in one line
-    if m.message =~ /(f|ht)tps?:\/\//
-      if m.message =~ /((f|ht)tps?:\/\/.*?)(?:\s+|$)/
-        urlstr = $1
-        list = @registry[m.target]
-
-        title = nil
-        if @bot.config['url.display_link_info']
-          Thread.start do
-            debug "Getting title for #{urlstr}..."
-            begin
-              title = get_title_for_url urlstr
-              if title
-                m.reply "#{LINK_INFO} #{title}", :overlong => :truncate
-                debug "Title found!"
-              else
-                debug "Title not found!"
-              end
-            rescue => e
-              m.reply "Error #{e.message}"
+  def handle_urls(m, urls, display_info=@bot.config['url.display_link_info'])
+    return if urls.empty?
+    debug "found urls #{urls.inspect}"
+    if m.public?
+      list = @registry[m.target] 
+    else
+      list = nil
+    end
+    urls_displayed = 0
+    urls.each { |urlstr|
+      debug "working on #{urlstr}"
+      next unless urlstr =~ /^https?:/
+      title = nil
+      debug "display link info: #{display_info}"
+      if display_info > urls_displayed
+        urls_displayed += 1
+        Thread.start do
+          debug "Getting title for #{urlstr}..."
+          begin
+            title = get_title_for_url urlstr, m.source.nick, m.channel, m.message
+            if title
+              m.reply "#{LINK_INFO} #{title}", :overlong => :truncate
+              debug "Title found!"
+            else
+              debug "Title not found!"
             end
+          rescue => e
+            m.reply "Error #{e.message}"
           end
         end
+      end
 
-        # check to see if this url is already listed
-        return if list.find {|u| u.url == urlstr }
+      next unless list
 
-        url = Url.new(m.target, m.sourcenick, Time.new, urlstr, title)
-        debug "#{list.length} urls so far"
-        if list.length > @bot.config['url.max_urls']
-          list.pop
-        end
-        debug "storing url #{url.url}"
-        list.unshift url
-        debug "#{list.length} urls now"
-        @registry[m.target] = list
+      # check to see if this url is already listed
+      next if list.find {|u| u.url == urlstr }
+
+      url = Url.new(m.target, m.sourcenick, Time.new, urlstr, title)
+      debug "#{list.length} urls so far"
+      if list.length > @bot.config['url.max_urls']
+        list.pop
       end
-    end
+      debug "storing url #{url.url}"
+      list.unshift url
+      debug "#{list.length} urls now"
+    }
+    @registry[m.target] = list
+  end
+
+  def info(m, params)
+    escaped = URI.escape(params[:urls].to_s, OUR_UNSAFE)
+    urls = URI.extract(escaped)
+    handle_urls(m, urls, params[:urls].length)
+  end
+
+  def listen(m)
+    return unless m.kind_of?(PrivMessage)
+    return if m.address?
+
+    escaped = URI.escape(m.message, OUR_UNSAFE)
+    urls = URI.extract(escaped)
+    handle_urls(m, urls)
   end
 
   def reply_urls(opts={})
@@ -158,7 +225,7 @@ class UrlPlugin < Plugin
     list[0..(max-1)].each do |url|
       disp = "[#{url.time.strftime('%Y/%m/%d %H:%M:%S')}] <#{url.nick}> #{url.url}"
       if @bot.config['url.info_on_list']
-        title = url.info || get_title_for_url(url.url) rescue nil
+        title = url.info || get_title_for_url(url.url, url.nick, channel) rescue nil
         # If the url info was missing and we now have some, try to upgrade it
         if channel and title and not url.info
           ll = @registry[channel]
@@ -207,6 +274,7 @@ class UrlPlugin < Plugin
 end
 
 plugin = UrlPlugin.new
+plugin.map 'urls info *urls', :action => 'info'
 plugin.map 'urls search :channel :limit :string', :action => 'search',
                           :defaults => {:limit => 4},
                           :requirements => {:limit => /^\d+$/},