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require 'rexml/document'
require 'uri/common'
class SlashdotPlugin < Plugin
include REXML
def help(plugin, topic="")
"slashdot search <string> [<max>=4] => search slashdot for <string>, slashdot [<max>=4] => return up to <max> slashdot headlines (use negative max to return that many headlines, but all on one line.)"
end
def search_slashdot(m, params)
max = params[:limit].to_i
search = params[:search].to_s
begin
xml = @bot.httputil.get_cached(URI.parse("http://slashdot.org/search.pl?content_type=rss&query=#{URI.escape(search)}"))
rescue URI::InvalidURIError, URI::BadURIError => e
m.reply "illegal search string #{search}"
return
end
unless xml
m.reply "search for #{search} failed"
return
end
debug xml.inspect
begin
doc = Document.new xml
rescue REXML::ParseException => e
warning e.inspect
m.reply "couldn't parse output XML: #{e.class}"
return
end
unless doc
m.reply "search for #{search} failed"
return
end
debug doc.inspect
max = 8 if max > 8
done = 0
doc.elements.each("*/item") {|e|
desc = e.elements["title"].text
desc.gsub!(/(.{150}).*/, '\1..')
reply = sprintf("%s | %s", e.elements["link"].text, desc)
m.reply reply
done += 1
break if done >= max
}
unless done > 0
m.reply "search for #{search} failed"
end
end
def slashdot(m, params)
debug params.inspect
max = params[:limit].to_i
debug "max is #{max}"
xml = @bot.httputil.get_cached(URI.parse("http://slashdot.org/slashdot.xml"))
unless xml
m.reply "slashdot news parse failed"
return
end
doc = Document.new xml
unless doc
m.reply "slashdot news parse failed (invalid xml)"
return
end
done = 0
oneline = false
if max < 0
max = (0 - max)
oneline = true
end
max = 8 if max > 8
matches = Array.new
doc.elements.each("*/story") {|e|
matches << [ e.elements["title"].text,
e.elements["author"].text,
e.elements["time"].text.gsub(/\d{4}-(\d{2})-(\d{2})/, "\\2/\\1").gsub(/:\d\d$/, "") ]
done += 1
break if done >= max
}
if oneline
m.reply matches.collect{|mat| mat[0]}.join(" | ")
else
matches.each {|mat|
m.reply sprintf("%36s | %8s | %8s", mat[0][0,36], mat[1][0,8], mat[2])
}
end
end
end
plugin = SlashdotPlugin.new
plugin.map 'slashdot search :limit *search', :action => 'search_slashdot',
:defaults => {:limit => 4}, :requirements => {:limit => /^-?\d+$/}
plugin.map 'slashdot :limit', :defaults => {:limit => 4},
:requirements => {:limit => /^-?\d+$/}
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