Introduce native mongrel handler and push mutex into dispatcher.

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@8488 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

1 files changed, 55 insertions, 0 deletions

diff --git a/railties/lib/rails/mongrel_server/handler.rb b/railties/lib/rails/mongrel_server/handler.rb
new file mode 100644
index 0000000000..a19eca7259
--- /dev/null
+++ b/railties/lib/rails/mongrel_server/handler.rb
@@ -0,0 +1,55 @@
+# Copyright (c) 2005 Zed A. Shaw
+# You can redistribute it and/or modify it under the same terms as Ruby.
+#
+# Additional work donated by contributors.  See http://mongrel.rubyforge.org/attributions.html
+# for more information.
+
+require 'mongrel'
+require 'cgi'
+require 'action_controller/dispatcher'
+
+
+module Rails
+  module MongrelServer
+    # Implements a handler that can run Rails and serve files out of the
+    # Rails application's public directory.  This lets you run your Rails
+    # application with Mongrel during development and testing, then use it
+    # also in production behind a server that's better at serving the
+    # static files.
+    #
+    # The RailsHandler takes a mime_map parameter which is a simple suffix=mimetype
+    # mapping that it should add to the list of valid mime types.
+    #
+    # It also supports page caching directly and will try to resolve a request
+    # in the following order:
+    #
+    # * If the requested exact PATH_INFO exists as a file then serve it.
+    # * If it exists at PATH_INFO+".html" exists then serve that.
+    # * Finally, construct a Mongrel::CGIWrapper and run Dispatcher.dispatch to have Rails go.
+    #
+    # This means that if you are using page caching it will actually work with Mongrel
+    # and you should see a decent speed boost (but not as fast as if you use a static
+    # server like Apache or Litespeed).
+    class RailsHandler < Mongrel::HttpHandler
+      # Construct a Mongrel::CGIWrapper and dispatch.
+      def process(request, response)
+        return if response.socket.closed?
+
+        cgi = Mongrel::CGIWrapper.new(request, response)
+        cgi.handler = self
+        # We don't want the output to be really final until we're out of the lock
+        cgi.default_really_final = false
+
+        ActionController::Dispatcher.dispatch(cgi, ActionController::CgiRequest::DEFAULT_SESSION_OPTIONS, response.body)
+
+        # This finalizes the output using the proper HttpResponse way
+        cgi.out("text/html",true) {""}
+      rescue Errno::EPIPE
+        response.socket.close
+      rescue Object => rails_error
+        STDERR.puts "#{Time.now.httpdate}: Error dispatching #{rails_error.inspect}"
+        STDERR.puts rails_error.backtrace.join("\n")
+      end
+    end
+  end
+end