# Wraps NOAA National Weather Service information
class CurrentConditions
+ @@bot = Irc::Utils.bot
def initialize(station)
@station = station
- @url = "http://www.nws.noaa.gov/data/current_obs/#{@station.upcase}.xml"
- @etag = String.new
- @mtime = Time.mktime(0)
+ @url = "http://www.nws.noaa.gov/data/current_obs/#{URI.encode @station.upcase}.xml"
@current_conditions = String.new
- @iscached = false
end
def update
- begin
- open(@url,"If-Modified-Since" => @mtime.rfc2822) do |feed|
- # open(@url,"If-None-Match"=>@etag) do |feed|
- @etag = feed.meta['etag']
- @mtime = feed.last_modified
- cc_doc = (REXML::Document.new feed).root
- @iscached = false
- @current_conditions = parse(cc_doc)
- end
- rescue OpenURI::HTTPError => e
- case e
- when /304/:
- @iscached = true
- when /404/:
- raise "Data for #{@station} not found"
- else
- raise "Error retrieving data: #{e}"
- end
+ begin
+ resp = @@bot.httputil.get_response(@url)
+ case resp
+ when Net::HTTPSuccess
+ cc_doc = (REXML::Document.new resp.body).root
+ @current_conditions = parse(cc_doc)
+ else
+ raise Net::HTTPError.new(_("couldn't get data for %{station} (%{message})") % {
+ :station => @station, :message => resp.message
+ }, resp)
end
- @current_conditions # +" Cached? "+ ((@iscached) ? "Y" : "N")
+ rescue => e
+ if Net::HTTPError === e
+ raise
+ else
+ error e
+ raise "error retrieving data: #{e}"
+ end
+ end
+ @current_conditions
end
def parse(cc_doc)
cc = Hash.new
cc_doc.elements.each do |c|
cc[c.name.to_sym] = c.text
end
- "At #{cc[:observation_time_rfc822]}, the wind was #{cc[:wind_string]} at #{cc[:location]} (#{cc[:station_id]}). The temperature was #{cc[:temperature_string]}#{heat_index_or_wind_chill(cc)}, and the pressure was #{cc[:pressure_string]}. The relative humidity was #{cc[:relative_humidity]}%. Current conditions are #{cc[:weather]} with #{cc[:visibility_mi]}mi visibility."
+ cc[:time] = cc[:observation_time_rfc822]
+ cc[:wind] = cc[:wind_string]
+ cc[:temperature] = cc[:temperature_string]
+ cc[:heatindexorwindchill] = heat_index_or_wind_chill(cc)
+ cc[:pressure] = cc[:pressure_string]
+
+ _("At %{time} the conditions at %{location} (%{station_id}) were %{weather} with a visibility of %{visibility_mi}mi. The wind was %{wind} with %{relative_humidity}%% relative humidity. The temperature was %{temperature}%{heatindexorwindchill}, and the pressure was %{pressure}.") % cc
end
private
def heat_index_or_wind_chill(cc)
hi = cc[:heat_index_string]
wc = cc[:windchill_string]
- if hi != 'NA' then
- " with a heat index of #{hi}"
- elsif wc != 'NA' then
- " with a windchill of #{wc}"
+ if hi and hi != 'NA' then
+ _(" with a heat index of %{hi}") % { :hi => hi }
+ elsif wc and wc != 'NA' then
+ _(" with a windchill of %{wc}") % { :wc => wc }
else
""
end
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?")
+ Config.register Config::EnumValue.new('weather.units',
+ :values => ['metric', 'english', 'both'],
+ :default => 'both',
+ :desc => "Units to be used by default in Weather Underground reports")
+
+
def help(plugin, topic="")
case topic
when "nws"
"weather nws <station> => display the current conditions at the location specified by the NOAA National Weather Service station code <station> ( lookup your station code at http://www.nws.noaa.gov/data/current_obs/ )"
when "station", "wu"
- "weather [<units>] <location> => display the current conditions at the location specified, looking it up on the Weather Underground site; you can use 'station <code>' to look up data by station code ( lookup your station code at http://www.weatherunderground.com/ ); you can optionally set <units> to 'metric' or 'english' if you only want data with the units; use 'both' for units to go back to having both."
+ "weather [<units>] <location> => display the current conditions at the location specified, looking it up on the Weather Underground site; you can use 'station <code>' to look up data by station code ( lookup your station code at http://www.weatherunderground.com/ ); you can optionally set <units> to 'metric' or 'english' if you only want data with the units; use 'both' for units to go back to having both."
else
"weather information lookup. Looks up weather information for the last location you specified. See topics 'nws' and 'wu' for more information"
end
end
-
+
def initialize
super
@wu_url = "http://mobile.wunderground.com/cgi-bin/findweather/getForecast?brand=mobile%s&query=%s"
@wu_station_url = "http://mobile.wunderground.com/auto/mobile%s/global/stations/%s.html"
end
-
+
def weather(m, params)
- if params[:where].empty?
- if @registry.has_key?(m.sourcenick)
- where = @registry[m.sourcenick]
- debug "Loaded weather info #{where.inspect} for #{m.sourcenick}"
-
- service = where.first.to_sym
- loc = where[1].to_s
- units = params[:units] || where[2] rescue nil
- else
- debug "No weather info for #{m.sourcenick}"
- m.reply "I don't know where you are yet, #{m.sourcenick}. See 'help weather nws' or 'help weather wu' for additional help"
- return
- end
- else
- where = params[:where]
- if ['nws','station'].include?(where.first)
- service = where.first.to_sym
- loc = where[1].to_s
+ where = params[:where].to_s
+ service = params[:service].to_sym rescue nil
+ units = params[:units]
+
+ if where.empty? or !service or !units and @registry.has_key?(m.sourcenick)
+ reg = @registry[m.sourcenick]
+ debug "loaded weather info #{reg.inspect} for #{m.sourcenick}"
+ service = reg.first.to_sym if !service
+ where = reg[1].to_s if where.empty?
+ units = reg[2] rescue nil
+ end
+
+ if !service
+ if where.sub!(/^station\s+/,'')
+ service = :nws
else
service = :wu
- loc = where.to_s
end
- units = params[:units]
end
- if loc.empty?
+ if where.empty?
debug "No weather location found for #{m.sourcenick}"
m.reply "I don't know where you are yet, #{m.sourcenick}. See 'help weather nws' or 'help weather wu' for additional help"
return
end
wu_units = String.new
- if units
- case units.to_sym
- when :english, :metric
- wu_units = "_#{units}"
- when :both
- else
- m.reply "Ignoring unknown units #{units}"
- wu_units = String.new
- end
+
+ case (units || @bot.config['weather.units']).to_sym
+ when :english, :metric
+ wu_units = "_#{units}"
+ when :both
+ else
+ m.reply "Ignoring unknown units #{units}"
end
case service
when :nws
- nws_describe(m, loc)
+ nws_describe(m, where)
when :station
- wu_station(m, loc, wu_units)
+ wu_station(m, where, wu_units)
when :wu
- wu_weather(m, loc, wu_units)
+ wu_weather(m, where, wu_units)
+ when :google
+ google_weather(m, where)
+ else
+ m.reply "I don't know the weather service #{service}, sorry"
+ return
end
- @registry[m.sourcenick] = [service, loc, units]
+ @registry[m.sourcenick] = [service, where, units]
end
def nws_describe(m, where)
begin
m.reply met.update
@nws_cache[where] = met
+ rescue Net::HTTPError => e
+ m.reply _("%{error}, will try WU service") % { :error => e.message }
+ wu_weather(m, where)
rescue => e
m.reply e.message
end
end
end
- def wu_station(m, where, units)
+ def wu_station(m, where, units="")
begin
xml = @bot.httputil.get(@wu_station_url % [units, CGI.escape(where)])
case xml
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}..."
end
end
- def wu_weather(m, where, units)
+ def wu_weather(m, where, units="")
begin
xml = @bot.httputil.get(@wu_url % [units, CGI.escape(where)])
case xml
else
m.reply "couldn't parse weather data from #{where}"
end
- when /<a href="\/(?:global\/stations|US\/\w\w)\//
+ wu_out_special(m, xml)
+ when /<a href="\/auto\/mobile[^\/]+\/(?:global\/stations|[A-Z][A-Z])\//
wu_weather_multi(m, xml)
else
debug xml
end
end
- def wu_clean(stuff)
- txt = stuff
- txt.gsub!(/[\n\s]+/,' ')
- txt.gsub!(/ /, ' ')
- txt.gsub!(/°/, ' ') # 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)
+ stations = xml.scan(/<td>\s*(?:<a href="([^?"]+\?feature=[^"]+)"\s*[^>]*><img [^>]+><\/a>\s*)?<a href="\/auto\/mobile[^\/]+\/(?:global\/stations|([A-Z][A-Z]))\/([^"]*?)\.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|
par = ar[3]
w = ar[4]
if state # US station
- (warning ? "*" : "") + ("%s, %s (%s): %s" % [loc, state, par, wu_clean(w)])
+ (warning ? "*" : "") + ("%s, %s (%s): %s" % [loc, state, par, w.ircify_html])
else # non-US station
- (warning ? "*" : "") + ("station %s (%s): %s" % [loc, par, wu_clean(w)])
+ (warning ? "*" : "") + ("station %s (%s): %s" % [loc, par, w.ircify_html])
end
}
m.reply stations.join("; ")
end
- def wu_weather_filter(stuff)
- txt = wu_clean(stuff)
+ 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)
result = Array.new
- if txt.match(/<\/a>\s*Updated:\s*(.*?)\s*Observed at\s*(.*?)\s*<\/td>/)
- result << ("Weather info for %s (updated on %s)" % [$2, $1])
+ if stuff.match(/<\/a>\s*Updated:\s*(.*?)\s*Observed at\s*(.*?)\s*<\/td>/)
+ result << ("Weather info for %s (updated on %s)" % [$2.ircify_html, $1.ircify_html])
end
- txt.scan(/<tr>\s*<td>\s*(.*?)\s*<\/td>\s*<td>\s*(.*?)\s*<\/td>\s*<\/tr>/) { |k, v|
- next if v.empty?
- next if ["-", "- approx.", "N/A", "N/A approx."].include?(v)
- next if k == "Raw METAR"
- result << ("%s: %s" % [k, v])
+ stuff.scan(/<tr>\s*<td>\s*(.*?)\s*<\/td>\s*<td>\s*(.*?)\s*<\/td>\s*<\/tr>/m) { |k, v|
+ kk = k.riphtml
+ vv = v.riphtml
+ next if vv.empty?
+ next if ["-", "- approx.", "N/A", "N/A approx."].include?(vv)
+ next if kk == "Raw METAR"
+ result << ("%s: %s" % [kk, vv])
}
return result.join('; ')
end
+
+ # TODO allow units choice other than lang, find how the API does it
+ def google_weather(m, where)
+ botlang = @bot.config['core.language'].intern
+ if Language::Lang2Locale.key?(botlang)
+ lang = Language::Lang2Locale[botlang].sub(/.UTF.?8$/,'')
+ else
+ lang = botlang.to_s[0,2]
+ end
+
+ debug "Google weather with language #{lang}"
+ xml = @bot.httputil.get("http://www.google.com/ig/api?hl=#{lang}&weather=#{CGI.escape where}")
+ debug xml
+ weather = REXML::Document.new(xml).root.elements["weather"]
+ begin
+ error = weather.elements["problem_cause"]
+ if error
+ ermsg = error.attributes["data"]
+ ermsg = _("no reason specified") if ermsg.empty?
+ raise ermsg
+ end
+ city = weather.elements["forecast_information/city"].attributes["data"]
+ date = Time.parse(weather.elements["forecast_information/current_date_time"].attributes["data"])
+ units = weather.elements["forecast_information/unit_system"].attributes["data"].intern
+ current_conditions = weather.elements["current_conditions"]
+ foreconds = weather.elements.to_a("forecast_conditions")
+
+ conds = []
+ current_conditions.each { |el|
+ name = el.name.intern
+ value = el.attributes["data"].dup
+ debug [name, value]
+ case name
+ when :icon
+ next
+ when :temp_f
+ next if units == :SI
+ value << "°F"
+ when :temp_c
+ next if units == :US
+ value << "°C"
+ end
+ conds << value
+ }
+
+ forecasts = []
+ foreconds.each { |forecast|
+ cond = []
+ forecast.each { |el|
+ name = el.name.intern
+ value = el.attributes["data"]
+ case name
+ when :icon
+ next
+ when :high, :low
+ value << (units == :SI ? "°C" : "°F")
+ value << " |" if name == :low
+ when :condition
+ value = "(#{value})"
+ end
+ cond << value
+ }
+ forecasts << cond.join(' ')
+ }
+
+ m.reply _("Google weather info for %{city} on %{date}: %{conds}. Three-day forecast: %{forecast}") % {
+ :city => city,
+ :date => date,
+ :conds => conds.join(', '),
+ :forecast => forecasts.join('; ')
+ }
+ rescue => e
+ debug e
+ m.reply _("Google weather failed: %{e}") % { :e => e}
+ end
+
+ end
+
end
plugin = WeatherPlugin.new
-plugin.map 'weather :units *where', :defaults => {:where => false, :units => false}, :requirements => {:units => /metric|english|both/}
+plugin.map 'weather :units :service *where',
+ :defaults => {
+ :where => false,
+ :units => false,
+ :service => false
+ },
+ :requirements => {
+ :units => /metric|english|both/,
+ :service => /wu|nws|station|google/
+ }
projects / user / henk / code / ruby / rbot.git / blobdiff