diff options
Diffstat (limited to 'actionpack/lib/action_dispatch/vendor/rack-1.0/rack/recursive.rb')
-rw-r--r-- | actionpack/lib/action_dispatch/vendor/rack-1.0/rack/recursive.rb | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/actionpack/lib/action_dispatch/vendor/rack-1.0/rack/recursive.rb b/actionpack/lib/action_dispatch/vendor/rack-1.0/rack/recursive.rb new file mode 100644 index 0000000000..bf8b965925 --- /dev/null +++ b/actionpack/lib/action_dispatch/vendor/rack-1.0/rack/recursive.rb @@ -0,0 +1,57 @@ +require 'uri' + +module Rack + # Rack::ForwardRequest gets caught by Rack::Recursive and redirects + # the current request to the app at +url+. + # + # raise ForwardRequest.new("/not-found") + # + + class ForwardRequest < Exception + attr_reader :url, :env + + def initialize(url, env={}) + @url = URI(url) + @env = env + + @env["PATH_INFO"] = @url.path + @env["QUERY_STRING"] = @url.query if @url.query + @env["HTTP_HOST"] = @url.host if @url.host + @env["HTTP_PORT"] = @url.port if @url.port + @env["rack.url_scheme"] = @url.scheme if @url.scheme + + super "forwarding to #{url}" + end + end + + # Rack::Recursive allows applications called down the chain to + # include data from other applications (by using + # <tt>rack['rack.recursive.include'][...]</tt> or raise a + # ForwardRequest to redirect internally. + + class Recursive + def initialize(app) + @app = app + end + + def call(env) + @script_name = env["SCRIPT_NAME"] + @app.call(env.merge('rack.recursive.include' => method(:include))) + rescue ForwardRequest => req + call(env.merge(req.env)) + end + + def include(env, path) + unless path.index(@script_name) == 0 && (path[@script_name.size] == ?/ || + path[@script_name.size].nil?) + raise ArgumentError, "can only include below #{@script_name}, not #{path}" + end + + env = env.merge("PATH_INFO" => path, "SCRIPT_NAME" => @script_name, + "REQUEST_METHOD" => "GET", + "CONTENT_LENGTH" => "0", "CONTENT_TYPE" => "", + "rack.input" => StringIO.new("")) + @app.call(env) + end + end +end |