Try to get headers working on Ruby 1.8.7

.gitignore

@@ -8,3 +8,4 @@ stage
 Gemfile.lock
 .rbx
 doc
+.rbenv-version

lib/rack/static.rb

@@ -114,31 +114,38 @@ def call(env)
 
       if can_serve(path)
         env["PATH_INFO"] = (path =~ /\/$/ ? path + @index : @urls[path]) if overwrite_file_path(path)
-        @path = env["PATH_INFO"]
-        set_headers
+        set_headers(env["PATH_INFO"])
         @file_server.call(env)
       else
         @app.call(env)
       end
     end
 
     # Convert header rules to headers
-    def set_headers
+    def set_headers(path)
       @header_rules.each do |rule, headers|
-        case rule
-        when :global # Global
+        if rule == :global # Global
           set_header(headers)
-        when :fonts  # Fonts Shortcut
-          set_header(headers) if @path.match(%r{\.(?:ttf|otf|eot|woff|svg)\z})
-        when String  # Folder
-          path = ::Rack::Utils.unescape(@path)
-          set_header(headers) if
-            (path.start_with?(rule) || path.start_with?('/' + rule))
-        when Array   # Extension/Extensions
+        elsif rule == :fonts  # Fonts Shortcut
+          if path.match(%r{\.(?:ttf|otf|eot|woff|svg)\z})
+            set_header(headers)
+          end
+        elsif rule.instance_of?(String)  # Folder
+          path = ::Rack::Utils.unescape(path)
+          if path.start_with?(rule)
+            set_header(headers)
+          elsif path.start_with?('/' + rule)
+            set_header(headers)
+          end
+        elsif rule.instance_of?(Array)   # Extension/Extensions
           extensions = rule.join('|')
-          set_header(headers) if @path.match(%r{\.(#{extensions})\z})
-        when Regexp  # Flexible Regexp
-          set_header(headers) if @path.match(rule)
+          if path.match(%r{\.(#{extensions})\z})
+            set_header(headers)
+          end
+        elsif rule.instance_of?(Regexp)  # Flexible Regexp
+          if path.match(rule)
+            set_header(headers)
+          end
         else
         end
       end

test/spec_static.rb

@@ -23,6 +23,16 @@ def static(app, *args)
   @static_request = Rack::MockRequest.new(static(DummyApp.new, STATIC_OPTIONS))
   @hash_request = Rack::MockRequest.new(static(DummyApp.new, HASH_OPTIONS))
 
+  @header_rules = {
+    :header_rules => {
+      :global     => {'Cache-Control' => 'public, max-age=100'},
+      :fonts      => {'Cache-Control' => 'public, max-age=200'},
+      %w(png jpg) => {'Cache-Control' => 'public, max-age=300'},
+      'cgi/assets/folder/'     => {'Cache-Control' => 'public, max-age=400'},
+      '/cgi/assets/javascripts' => {'Cache-Control' => 'public, max-age=500'},
+      /\.(css|erb)\z/ => {'Cache-Control' => 'public, max-age=600'},
+    }}
+
   it "serves files" do
     res = @request.get("/cgi/test")
     res.should.be.ok
@@ -91,40 +101,58 @@ def static(app, *args)
     res.headers['Cache-Control'].should == 'public, max-age=42'
   end
 
-  it "support HTTP header rules" do
-    opts = OPTIONS.merge(:header_rules => {
-      :global     => {'Cache-Control' => 'public, max-age=100'},
-      :fonts      => {'Cache-Control' => 'public, max-age=200'},
-      %w(png jpg) => {'Cache-Control' => 'public, max-age=300'},
-      'cgi/assets/folder/'     => {'Cache-Control' => 'public, max-age=400'},
-      '/cgi/assets/javascripts' => {'Cache-Control' => 'public, max-age=500'},
-      /\.(css|erb)\z/ => {'Cache-Control' => 'public, max-age=600'},
-    })
+  it "support HTTP header rule :global" do
+    opts = OPTIONS.merge(@header_rules)
     request = Rack::MockRequest.new(static(DummyApp.new, opts))
 
     # Global Headers via :global shortcut
     res = request.get('/cgi/assets/index.html')
     res.should.be.ok
     res.headers['Cache-Control'].should == 'public, max-age=100'
+  end
+
+  it "support HTTP header rule :fonts" do
+    opts = OPTIONS.merge(@header_rules)
+    request = Rack::MockRequest.new(static(DummyApp.new, opts))
 
     # Headers for web fonts via :fonts shortcut
     res = request.get('/cgi/assets/fonts/font.eot')
     res.should.be.ok
     res.headers['Cache-Control'].should == 'public, max-age=200'
+  end
+
+  it "support HTTP header rules for file extensions via Array" do
+    opts = OPTIONS.merge(@header_rules)
+    request = Rack::MockRequest.new(static(DummyApp.new, opts))
 
     # Headers for file extensions via array
     res = request.get('/cgi/assets/images/image.png')
     res.should.be.ok
     res.headers['Cache-Control'].should == 'public, max-age=300'
+  end
+
+  it "support HTTP header rules for folders via String starting without '/'" do
+    opts = OPTIONS.merge(@header_rules)
+    request = Rack::MockRequest.new(static(DummyApp.new, opts))
 
     # Headers for files in folder via string
     res = request.get('/cgi/assets/folder/test.js')
     res.should.be.ok
     res.headers['Cache-Control'].should == 'public, max-age=400'
+  end
+
+  it "support HTTP header rules for folders via String starting with '/'" do
+    opts = OPTIONS.merge(@header_rules)
+    request = Rack::MockRequest.new(static(DummyApp.new, opts))
 
     res = request.get('/cgi/assets/javascripts/app.js')
     res.should.be.ok
     res.headers['Cache-Control'].should == 'public, max-age=500'
+  end
+
+  it "support flexible HTTP header rules via Regexp" do
+    opts = OPTIONS.merge(@header_rules)
+    request = Rack::MockRequest.new(static(DummyApp.new, opts))
 
     # Flexible Headers via Regexp
     res = request.get('/cgi/assets/stylesheets/app.css')