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# File 'lib/feedbag.rb', line 63
def self.find(url, args = {})
$feeds = []
url_uri = URI.parse(url)
url = nil
if url_uri.scheme.nil?
url = "http://#{url_uri.to_s}"
elsif url_uri.scheme == "feed"
return self.add_feed(url_uri.to_s.sub(/^feed:\/\//, 'http://'), nil)
else
url = url_uri.to_s
end
begin
require "feed_validator"
v = W3C::FeedValidator.new
v.validate_url(url)
return self.add_feed(url, nil) if v.valid?
rescue LoadError
rescue REXML::ParseException
rescue => ex
$stderr.puts "#{ex.class} error ocurred with: `#{url}': #{ex.message}"
end
begin
Timeout::timeout(20) do
html = open(url) do |f|
content_type = f.content_type.downcase
if content_type == "application/octet-stream" content_type = f.meta["content-type"].gsub(/;.*$/, '')
end
if @content_types.include?(content_type)
return self.add_feed(url, nil)
end
if RUBY_VERSION < '1.9'
ic = Iconv.new('UTF-8//IGNORE', f.charset)
doc = Hpricot(ic.iconv(f.read))
else
doc = Hpricot(f.read)
end
if doc.at("base") and doc.at("base")["href"]
$base_uri = doc.at("base")["href"]
else
$base_uri = nil
end
title = (doc/:title).first
title = title.innerHTML if title
description = (doc/:description).first
description = description.innerHTML if description
(doc/"atom:link").each do |l|
next unless l["rel"]
if l["type"] and @content_types.include?(l["type"].downcase.strip) and l["rel"].downcase == "self"
self.add_feed(l["href"], url, $base_uri, title, description || title)
end
end
(doc/"link").each do |l|
next unless l["rel"]
if l["type"] and @content_types.include?(l["type"].downcase.strip) and (l["rel"].downcase =~ /alternate/i or l["rel"] == "service.feed")
self.add_feed(l["href"], url, $base_uri, title, description || title)
end
end
(doc/"a").each do |a|
next unless a["href"]
if self.looks_like_feed?(a["href"]) and (a["href"] =~ /\// or a["href"] =~ /#{url_uri.host}/)
calculated_title = self.title_for_anchor(a, title)
self.add_feed(a["href"], url, $base_uri, calculated_title, description || calculated_title)
end
end
(doc/"a").each do |a|
next unless a["href"]
if self.looks_like_feed?(a["href"])
calculated_title = self.title_for_anchor(a, title)
self.add_feed(a["href"], url, $base_uri, calculated_title, description || calculated_title)
end
end
if url.match(/.xml$/) and doc.root and doc.root["xml:base"] and doc.root["xml:base"].strip == url.strip
self.add_feed(url, url, $base_uri, title, description)
end
end
end
rescue Timeout::Error => err
$stderr.puts "Timeout error ocurred with `#{url}: #{err}'"
rescue OpenURI::HTTPError => the_error
$stderr.puts "Error ocurred with `#{url}': #{the_error}"
rescue SocketError => err
$stderr.puts "Socket error ocurred with: `#{url}': #{err}"
rescue => ex
$stderr.puts "#{ex.class} error ocurred with: `#{url}': #{ex.message}"
ensure
return $feeds
end
end
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