plugins: raise a descriptive LoadError when the db is corrupt on load

[user/henk/code/ruby/rbot.git] / data / rbot / plugins / weather.rb

diff --git a/data/rbot/plugins/weather.rb b/data/rbot/plugins/weather.rb
index 88194e9067ca5ace3c15c60d23d8c9d4f029a95a..5da949e4d8787e6532ad3dd91bbd67451d0cfea2 100644 (file)
--- a/data/rbot/plugins/weather.rb
+++ b/data/rbot/plugins/weather.rb
@@ -11,7 +11,6 @@
 #
 # License:: GPL v2
 
-require 'uri'
 require 'rexml/document'
 
 # Wraps NOAA National Weather Service information
@@ -68,6 +67,10 @@ private
 end
 
 class WeatherPlugin < Plugin
+
+  Config.register Config::BooleanValue.new('weather.advisory',
+    :default => true,
+    :desc => "Should the bot report special weather advisories when any is present?")
   
   def help(plugin, topic="")
     case topic
@@ -165,7 +168,7 @@ class WeatherPlugin < Plugin
 
   def wu_station(m, where, units)
     begin
-      xml = @bot.httputil.get_cached(@wu_station_url % [units, URI.escape(where)])
+      xml = @bot.httputil.get(@wu_station_url % [units, CGI.escape(where)])
       case xml
       when nil
         m.reply "couldn't retrieve weather information, sorry"
@@ -174,8 +177,9 @@ class WeatherPlugin < Plugin
         m.reply "no such station found (#{where})"
         return
       when /<table border.*?>(.*?)<\/table>/m
-        data = $1
+        data = $1.dup
         m.reply wu_weather_filter(data)
+        wu_out_special(m, xml)
       else
         debug xml
         m.reply "something went wrong with the data for #{where}..."
@@ -187,20 +191,25 @@ class WeatherPlugin < Plugin
 
   def wu_weather(m, where, units)
     begin
-      xml = @bot.httputil.get_cached(@wu_url % [units, URI.escape(where)])
+      xml = @bot.httputil.get(@wu_url % [units, CGI.escape(where)])
       case xml
       when nil
         m.reply "couldn't retrieve weather information, sorry"
-        return
       when /City Not Found/
         m.reply "no such location found (#{where})"
-        return
-      when /<table border.*?>(.*?)<\/table>/m
-        data = $1
-        m.reply wu_weather_filter(data)
-      when /<a href="\/global\/stations\//
-        stations = xml.scan(/<a href="\/global\/stations\/(.*?)\.html">/)
-        m.reply "multiple stations available, use 'weather station <code>' where code is one of " + stations.join(", ")
+      when /Current<\/a>/
+        data = ""
+        xml.scan(/<table border.*?>(.*?)<\/table>/m).each do |match|
+          data += wu_weather_filter(match.first)
+        end
+        if data.length > 0
+          m.reply data
+        else
+          m.reply "couldn't parse weather data from #{where}"
+        end
+        wu_out_special(m, xml)
+      when /<a href="\/(?:global\/stations|US\/\w\w)\//
+        wu_weather_multi(m, xml)
       else
         debug xml
         m.reply "something went wrong with the data from #{where}..."
@@ -210,16 +219,73 @@ class WeatherPlugin < Plugin
     end
   end
 
-  def wu_weather_filter(stuff)
+  def wu_clean(stuff)
     txt = stuff
     txt.gsub!(/[\n\s]+/,' ')
-    data = Hash.new
     txt.gsub!(/&nbsp;/, ' ')
     txt.gsub!(/&#176;/, ' ') # degree sign
     txt.gsub!(/<\/?b>/,'')
     txt.gsub!(/<\/?span[^<>]*?>/,'')
     txt.gsub!(/<img\s*[^<>]*?>/,'')
     txt.gsub!(/<br\s?\/?>/,'')
+    txt
+  end
+
+  def wu_weather_multi(m, xml)
+    # debug xml
+    stations = xml.scan(/<td>\s*(?:<a href="([^?"]+\?feature=[^"]+)"\s*[^>]*><img [^>]+><\/a>\s*)?<a href="\/(?:global\/stations|US\/(\w\w))\/([^"]*?)\.html">(.*?)<\/a>\s*:\s*(.*?)<\/td>/m)
+    # debug stations
+    m.reply "multiple stations available, use 'weather station <code>' or 'weather <city, state>' as appropriate, for one of the following (current temp shown):"
+    stations.map! { |ar|
+      warning = ar[0]
+      loc = ar[2]
+      state = ar[1]
+      par = ar[3]
+      w = ar[4]
+      if state # US station
+        (warning ? "*" : "") + ("%s, %s (%s): %s" % [loc, state, par, wu_clean(w)])
+      else # non-US station
+        (warning ? "*" : "") + ("station %s (%s): %s" % [loc, par, wu_clean(w)])
+      end
+    }
+    m.reply stations.join("; ")
+  end
+
+  def wu_check_special(xml)
+    specials = []
+    # We only scan the first half to prevent getting the advisories twice
+    xml[0,xml.length/2].scan(%r{<a href="([^"]+\?[^"]*feature=warning#([^"]+))"[^>]*>([^<]+)</a>}) do
+      special = {
+        :url => "http://mobile.wunderground.com"+$1,
+        :type => $2.dup,
+        :special => $3.dup
+      }
+      spec_rx = Regexp.new("<a name=\"#{special[:type]}\">(?:.+?)<td align=\"left\">\\s+(.+?)\\s+</td>\\s+</tr>\\s+</table>", Regexp::MULTILINE)
+      spec_xml = @bot.httputil.get(special[:url])
+      if spec_xml and spec_td = spec_xml.match(spec_rx)
+        special.merge!(:text => spec_td.captures.first.ircify_html)
+      end
+      specials << special
+    end
+    return specials
+  end
+
+  def wu_out_special(m, xml)
+    return unless @bot.config['weather.advisory']
+    specials = wu_check_special(xml)
+    debug specials
+    specials.each do |special|
+      special.merge!(:underline => Underline)
+      if special[:text]
+        m.reply("%{underline}%{special}%{underline}: %{text}" % special)
+      else
+        m.reply("%{underline}%{special}%{underline} @ %{url}" % special)
+      end
+    end
+  end
+
+  def wu_weather_filter(stuff)
+    txt = wu_clean(stuff)
 
     result = Array.new
     if txt.match(/<\/a>\s*Updated:\s*(.*?)\s*Observed at\s*(.*?)\s*<\/td>/)