From efcd6ef586fa5487ba512080d3995a39197d3665 Mon Sep 17 00:00:00 2001
From: kou <kou@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Fri, 22 Jul 2005 05:41:33 +0000
Subject: * lib/rss/parser.rb (RSS::Parser#initialize): accept HTTP/FTP   URI
 and local file path too.

* test/rss/test_parser.rb (RSS::TestParser#test_parse): test
  for the above.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_8@8819 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 lib/rss/parser.rb | 32 +++++++++++++++++++++++++++++++-
 1 file changed, 31 insertions(+), 1 deletion(-)

(limited to 'lib')

diff --git a/lib/rss/parser.rb b/lib/rss/parser.rb
index 7e93c62f61..df268da1e7 100644
--- a/lib/rss/parser.rb
+++ b/lib/rss/parser.rb
@@ -1,4 +1,5 @@
 require "forwardable"
+require "open-uri"
 
 require "rss/rss"
 
@@ -77,7 +78,36 @@ module RSS
                    :do_validate=)
 
     def initialize(rss, parser_class=self.class.default_parser)
-      @parser = parser_class.new(rss)
+      @parser = parser_class.new(normalize_rss(rss))
+    end
+
+    private
+    def normalize_rss(rss)
+      return rss if maybe_xml?(rss)
+
+      uri = to_uri(rss)
+      
+      if uri.respond_to?(:read)
+        uri.read
+      elsif !rss.tainted? and File.readable?(rss)
+        File.open(rss) {|f| f.read}
+      else
+        rss
+      end
+    end
+
+    def maybe_xml?(source)
+      source.is_a?(String) and /</ =~ source
+    end
+
+    def to_uri(rss)
+      return rss if rss.is_a?(::URI::Generic)
+
+      begin
+        URI(rss)
+      rescue ::URI::Error
+        rss
+      end
     end
   end
 
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