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@@ -26,6 +26,9 @@
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 ##### Configuration
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+# Don't forget to edit Configuration.h too
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+PACKAGE_VERSION = "0.9.6"
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+
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 include PlatformInfo
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 APXS2.nil? and raise "Could not find 'apxs' or 'apxs2'."
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 APACHE2CTL.nil? and raise "Could not find 'apachectl' or 'apache2ctl'."
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@@ -333,7 +336,7 @@
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   s.homepage = "http://passenger.phusion.nl/"
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   s.summary = "Apache module for Ruby on Rails support."
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   s.name = "passenger"
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-	s.version = "0.9.6"  # Don't forget to edit Configuration.h too
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+	s.version = PACKAGE_VERSION
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   s.rubyforge_project = "passenger"
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   s.author = "Phusion - http://www.phusion.nl/"
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   s.email = "info@phusion.nl"

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@@ -98,6 +98,12 @@
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   CONTENT_LENGTH = 'CONTENT_LENGTH' # :nodoc:
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   HTTP_CONTENT_LENGTH = 'HTTP_CONTENT_LENGTH' # :nodoc:
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+	NINJA_PATCHING_LOCK = Mutex.new
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+	@@ninja_patched_action_controller = false
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+	
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+	File.read("#{File.dirname(__FILE__)}/../../Rakefile") =~ /^PACKAGE_VERSION = "(.*)"$/
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+	PASSENGER_VERSION = $1
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+	
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   # The name of the socket on which the request handler accepts
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   # new connections. This is either a Unix socket filename, or
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   # the name for an abstract namespace Unix socket.
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@@ -121,6 +127,21 @@
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     end
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     @owner_pipe = owner_pipe
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     @previous_signal_handlers = {}
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+		
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+		NINJA_PATCHING_LOCK.synchronize do
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+			if !@@ninja_patched_action_controller && defined?(::ActionController::Base) \
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+			&& ::ActionController::Base.private_method_defined?(:perform_action)
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+				@@ninja_patched_action_controller = true
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+				::ActionController::Base.class_eval do
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+					alias passenger_orig_perform_action perform_action
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+					
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+					def perform_action(*whatever)
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+						headers["X-Powered-By"] = "Phusion Passenger (mod_rails) #{PASSENGER_VERSION}"
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+						passenger_orig_perform_action(*whatever)
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+					end
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+				end
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+			end
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+		end
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   end
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   # Clean up temporary stuff created by the request handler.