diff options
Diffstat (limited to 'actionpack/lib/action_controller/cgi_process.rb')
| -rw-r--r-- | actionpack/lib/action_controller/cgi_process.rb | 216 |
1 files changed, 52 insertions, 164 deletions
diff --git a/actionpack/lib/action_controller/cgi_process.rb b/actionpack/lib/action_controller/cgi_process.rb index 45b51a7488..5d6988e1b1 100644 --- a/actionpack/lib/action_controller/cgi_process.rb +++ b/actionpack/lib/action_controller/cgi_process.rb @@ -1,184 +1,72 @@ require 'action_controller/cgi_ext' module ActionController #:nodoc: - class Base - # Process a request extracted from a CGI object and return a response. Pass false as <tt>session_options</tt> to disable - # sessions (large performance increase if sessions are not needed). The <tt>session_options</tt> are the same as for CGI::Session: - # - # * <tt>:database_manager</tt> - standard options are CGI::Session::FileStore, CGI::Session::MemoryStore, and CGI::Session::PStore - # (default). Additionally, there is CGI::Session::DRbStore and CGI::Session::ActiveRecordStore. Read more about these in - # lib/action_controller/session. - # * <tt>:session_key</tt> - the parameter name used for the session id. Defaults to '_session_id'. - # * <tt>:session_id</tt> - the session id to use. If not provided, then it is retrieved from the +session_key+ cookie, or - # automatically generated for a new session. - # * <tt>:new_session</tt> - if true, force creation of a new session. If not set, a new session is only created if none currently - # exists. If false, a new session is never created, and if none currently exists and the +session_id+ option is not set, - # an ArgumentError is raised. - # * <tt>:session_expires</tt> - the time the current session expires, as a Time object. If not set, the session will continue - # indefinitely. - # * <tt>:session_domain</tt> - the hostname domain for which this session is valid. If not set, defaults to the hostname of the - # server. - # * <tt>:session_secure</tt> - if +true+, this session will only work over HTTPS. - # * <tt>:session_path</tt> - the path for which this session applies. Defaults to the directory of the CGI script. - # * <tt>:cookie_only</tt> - if +true+ (the default), session IDs will only be accepted from cookies and not from - # the query string or POST parameters. This protects against session fixation attacks. - def self.process_cgi(cgi = CGI.new, session_options = {}) - new.process_cgi(cgi, session_options) - end - - def process_cgi(cgi, session_options = {}) #:nodoc: - process(CgiRequest.new(cgi, session_options), CgiResponse.new(cgi)).out - end - end - - class CgiRequest < AbstractRequest #:nodoc: - attr_accessor :cgi, :session_options - class SessionFixationAttempt < StandardError #:nodoc: - end - - DEFAULT_SESSION_OPTIONS = { - :database_manager => CGI::Session::CookieStore, # store data in cookie - :prefix => "ruby_sess.", # prefix session file names - :session_path => "/", # available to all paths in app - :session_key => "_session_id", - :cookie_only => true, - :session_http_only=> true - } - - def initialize(cgi, session_options = {}) - @cgi = cgi - @session_options = session_options - @env = @cgi.__send__(:env_table) - super() - end - - def query_string - qs = @cgi.query_string if @cgi.respond_to?(:query_string) - if !qs.blank? - qs - else - super - end - end - - def body_stream #:nodoc: - @cgi.stdinput - end - - def cookies - @cgi.cookies.freeze - end - - def session - unless defined?(@session) - if @session_options == false - @session = Hash.new - else - stale_session_check! do - if cookie_only? && query_parameters[session_options_with_string_keys['session_key']] - raise SessionFixationAttempt - end - case value = session_options_with_string_keys['new_session'] - when true - @session = new_session - when false - begin - @session = CGI::Session.new(@cgi, session_options_with_string_keys) - # CGI::Session raises ArgumentError if 'new_session' == false - # and no session cookie or query param is present. - rescue ArgumentError - @session = Hash.new - end - when nil - @session = CGI::Session.new(@cgi, session_options_with_string_keys) - else - raise ArgumentError, "Invalid new_session option: #{value}" - end - @session['__valid_session'] - end + class CGIHandler + module ProperStream + def each + while line = gets + yield line end end - @session - end - def reset_session - @session.delete if defined?(@session) && @session.is_a?(CGI::Session) - @session = new_session - end - - def method_missing(method_id, *arguments) - @cgi.__send__(method_id, *arguments) rescue super - end - - private - # Delete an old session if it exists then create a new one. - def new_session - if @session_options == false - Hash.new + def read(*args) + if args.empty? + super || "" else - CGI::Session.new(@cgi, session_options_with_string_keys.merge("new_session" => false)).delete rescue nil - CGI::Session.new(@cgi, session_options_with_string_keys.merge("new_session" => true)) + super end end + end - def cookie_only? - session_options_with_string_keys['cookie_only'] - end + def self.dispatch_cgi(app, cgi, out = $stdout) + env = cgi.__send__(:env_table) + env.delete "HTTP_CONTENT_LENGTH" - def stale_session_check! - yield - rescue ArgumentError => argument_error - if argument_error.message =~ %r{undefined class/module ([\w:]*\w)} - begin - # Note that the regexp does not allow $1 to end with a ':' - $1.constantize - rescue LoadError, NameError => const_error - raise ActionController::SessionRestoreError, <<-end_msg -Session contains objects whose class definition isn\'t available. -Remember to require the classes for all objects kept in the session. -(Original exception: #{const_error.message} [#{const_error.class}]) -end_msg - end + cgi.stdinput.extend ProperStream - retry - else - raise - end - end + env["SCRIPT_NAME"] = "" if env["SCRIPT_NAME"] == "/" - def session_options_with_string_keys - @session_options_with_string_keys ||= DEFAULT_SESSION_OPTIONS.merge(@session_options).stringify_keys - end - end + env.update({ + "rack.version" => [0,1], + "rack.input" => cgi.stdinput, + "rack.errors" => $stderr, + "rack.multithread" => false, + "rack.multiprocess" => true, + "rack.run_once" => false, + "rack.url_scheme" => ["yes", "on", "1"].include?(env["HTTPS"]) ? "https" : "http" + }) - class CgiResponse < AbstractResponse #:nodoc: - def initialize(cgi) - @cgi = cgi - super() - end - - def out(output = $stdout) - output.binmode if output.respond_to?(:binmode) - output.sync = false if output.respond_to?(:sync=) + env["QUERY_STRING"] ||= "" + env["HTTP_VERSION"] ||= env["SERVER_PROTOCOL"] + env["REQUEST_PATH"] ||= "/" + env.delete "PATH_INFO" if env["PATH_INFO"] == "" + status, headers, body = app.call(env) begin - output.write(@cgi.header(@headers)) - - if @cgi.__send__(:env_table)['REQUEST_METHOD'] == 'HEAD' - return - elsif @body.respond_to?(:call) - # Flush the output now in case the @body Proc uses - # #syswrite. - output.flush if output.respond_to?(:flush) - @body.call(self, output) - else - output.write(@body) - end - - output.flush if output.respond_to?(:flush) - rescue Errno::EPIPE, Errno::ECONNRESET - # lost connection to parent process, ignore output + out.binmode if out.respond_to?(:binmode) + out.sync = false if out.respond_to?(:sync=) + + headers['Status'] = status.to_s + out.write(cgi.header(headers)) + + body.each { |part| + out.write part + out.flush if out.respond_to?(:flush) + } + ensure + body.close if body.respond_to?(:close) end end end + + class CgiRequest #:nodoc: + DEFAULT_SESSION_OPTIONS = { + :database_manager => CGI::Session::CookieStore, + :prefix => "ruby_sess.", + :session_path => "/", + :session_key => "_session_id", + :cookie_only => true, + :session_http_only => true + } + end end |