90 lines
2.6 KiB
Ruby
90 lines
2.6 KiB
Ruby
module Rack
|
|
# *Handlers* connect web servers with Rack.
|
|
#
|
|
# Rack includes Handlers for Mongrel, WEBrick, FastCGI, CGI, SCGI
|
|
# and LiteSpeed.
|
|
#
|
|
# Handlers usually are activated by calling <tt>MyHandler.run(myapp)</tt>.
|
|
# A second optional hash can be passed to include server-specific
|
|
# configuration.
|
|
module Handler
|
|
def self.get(server)
|
|
return unless server
|
|
server = server.to_s
|
|
|
|
if klass = @handlers[server]
|
|
obj = Object
|
|
klass.split("::").each { |x| obj = obj.const_get(x) }
|
|
obj
|
|
else
|
|
try_require('rack/handler', server)
|
|
const_get(server)
|
|
end
|
|
end
|
|
|
|
def self.default(options = {})
|
|
# Guess.
|
|
if ENV.include?("PHP_FCGI_CHILDREN")
|
|
# We already speak FastCGI
|
|
options.delete :File
|
|
options.delete :Port
|
|
|
|
Rack::Handler::FastCGI
|
|
elsif ENV.include?("REQUEST_METHOD")
|
|
Rack::Handler::CGI
|
|
else
|
|
begin
|
|
Rack::Handler::Mongrel
|
|
rescue LoadError => e
|
|
Rack::Handler::WEBrick
|
|
end
|
|
end
|
|
end
|
|
|
|
# Transforms server-name constants to their canonical form as filenames,
|
|
# then tries to require them but silences the LoadError if not found
|
|
#
|
|
# Naming convention:
|
|
#
|
|
# Foo # => 'foo'
|
|
# FooBar # => 'foo_bar.rb'
|
|
# FooBAR # => 'foobar.rb'
|
|
# FOObar # => 'foobar.rb'
|
|
# FOOBAR # => 'foobar.rb'
|
|
# FooBarBaz # => 'foo_bar_baz.rb'
|
|
def self.try_require(prefix, const_name)
|
|
file = const_name.gsub(/^[A-Z]+/) { |pre| pre.downcase }.
|
|
gsub(/[A-Z]+[^A-Z]/, '_\&').downcase
|
|
|
|
require(::File.join(prefix, file))
|
|
rescue LoadError
|
|
end
|
|
|
|
def self.register(server, klass)
|
|
@handlers ||= {}
|
|
@handlers[server] = klass
|
|
end
|
|
|
|
autoload :CGI, "rack/handler/cgi"
|
|
autoload :FastCGI, "rack/handler/fastcgi"
|
|
autoload :Mongrel, "rack/handler/mongrel"
|
|
autoload :EventedMongrel, "rack/handler/evented_mongrel"
|
|
autoload :SwiftipliedMongrel, "rack/handler/swiftiplied_mongrel"
|
|
require "rack/handler/webrick"
|
|
# autoload :WEBrick, "rack/handler/webrick"
|
|
autoload :LSWS, "rack/handler/lsws"
|
|
autoload :SCGI, "rack/handler/scgi"
|
|
autoload :Thin, "rack/handler/thin"
|
|
|
|
register 'cgi', 'Rack::Handler::CGI'
|
|
register 'fastcgi', 'Rack::Handler::FastCGI'
|
|
register 'mongrel', 'Rack::Handler::Mongrel'
|
|
register 'emongrel', 'Rack::Handler::EventedMongrel'
|
|
register 'smongrel', 'Rack::Handler::SwiftipliedMongrel'
|
|
register 'webrick', 'Rack::Handler::WEBrick'
|
|
register 'lsws', 'Rack::Handler::LSWS'
|
|
register 'scgi', 'Rack::Handler::SCGI'
|
|
register 'thin', 'Rack::Handler::Thin'
|
|
end
|
|
end
|