diff options
Diffstat (limited to 'actionpack/lib/action_controller/metal/redirecting.rb')
| -rw-r--r-- | actionpack/lib/action_controller/metal/redirecting.rb | 64 |
1 files changed, 35 insertions, 29 deletions
diff --git a/actionpack/lib/action_controller/metal/redirecting.rb b/actionpack/lib/action_controller/metal/redirecting.rb index b23938e7d9..acaa8227c9 100644 --- a/actionpack/lib/action_controller/metal/redirecting.rb +++ b/actionpack/lib/action_controller/metal/redirecting.rb @@ -14,7 +14,7 @@ module ActionController include ActionController::RackDelegation include ActionController::UrlFor - # Redirects the browser to the target specified in +options+. This parameter can take one of three forms: + # Redirects the browser to the target specified in +options+. This parameter can be any one of: # # * <tt>Hash</tt> - The URL will be generated by calling url_for with the +options+. # * <tt>Record</tt> - The URL will be generated by calling url_for with the +options+, which will reference a named URL for that record. @@ -24,6 +24,8 @@ module ActionController # * <tt>:back</tt> - Back to the page that issued the request. Useful for forms that are triggered from multiple places. # Short-hand for <tt>redirect_to(request.env["HTTP_REFERER"])</tt> # + # === Examples: + # # redirect_to action: "show", id: 5 # redirect_to post # redirect_to "http://www.rubyonrails.org" @@ -32,7 +34,7 @@ module ActionController # redirect_to :back # redirect_to proc { edit_post_url(@post) } # - # The redirection happens as a "302 Moved" header unless otherwise specified. + # The redirection happens as a "302 Found" header unless otherwise specified using the <tt>:status</tt> option: # # redirect_to post_url(@post), status: :found # redirect_to action: 'atom', status: :moved_permanently @@ -58,23 +60,47 @@ module ActionController # redirect_to post_url(@post), alert: "Watch it, mister!" # redirect_to post_url(@post), status: :found, notice: "Pay attention to the road" # redirect_to post_url(@post), status: 301, flash: { updated_post_id: @post.id } - # redirect_to { action: 'atom' }, alert: "Something serious happened" + # redirect_to({ action: 'atom' }, alert: "Something serious happened") # - # When using <tt>redirect_to :back</tt>, if there is no referrer, ActionController::RedirectBackError will be raised. You may specify some fallback - # behavior for this case by rescuing ActionController::RedirectBackError. + # When using <tt>redirect_to :back</tt>, if there is no referrer, + # <tt>ActionController::RedirectBackError</tt> will be raised. You + # may specify some fallback behavior for this case by rescuing + # <tt>ActionController::RedirectBackError</tt>. def redirect_to(options = {}, response_status = {}) #:doc: raise ActionControllerError.new("Cannot redirect to nil!") unless options + raise ActionControllerError.new("Cannot redirect to a parameter hash!") if options.is_a?(ActionController::Parameters) raise AbstractController::DoubleRenderError if response_body - logger.debug { "Redirected by #{caller(1).first rescue "unknown"}" } if logger self.status = _extract_redirect_to_status(options, response_status) - self.location = _compute_redirect_to_location(options) - self.response_body = "<html><body>You are being <a href=\"#{ERB::Util.h(location)}\">redirected</a>.</body></html>" + self.location = _compute_redirect_to_location(request, options) + self.response_body = "<html><body>You are being <a href=\"#{ERB::Util.unwrapped_html_escape(location)}\">redirected</a>.</body></html>" + end + + def _compute_redirect_to_location(request, options) #:nodoc: + case options + # The scheme name consist of a letter followed by any combination of + # letters, digits, and the plus ("+"), period ("."), or hyphen ("-") + # characters; and is terminated by a colon (":"). + # See http://tools.ietf.org/html/rfc3986#section-3.1 + # The protocol relative scheme starts with a double slash "//". + when /\A([a-z][a-z\d\-+\.]*:|\/\/).*/i + options + when String + request.protocol + request.host_with_port + options + when :back + request.headers["Referer"] or raise RedirectBackError + when Proc + _compute_redirect_to_location request, options.call + else + url_for(options) + end.delete("\0\r\n") end + module_function :_compute_redirect_to_location + public :_compute_redirect_to_location private def _extract_redirect_to_status(options, response_status) - status = if options.is_a?(Hash) && options.key?(:status) + if options.is_a?(Hash) && options.key?(:status) Rack::Utils.status_code(options.delete(:status)) elsif response_status.key?(:status) Rack::Utils.status_code(response_status[:status]) @@ -82,25 +108,5 @@ module ActionController 302 end end - - def _compute_redirect_to_location(options) - case options - # The scheme name consist of a letter followed by any combination of - # letters, digits, and the plus ("+"), period ("."), or hyphen ("-") - # characters; and is terminated by a colon (":"). - # The protocol relative scheme starts with a double slash "//" - when %r{^(\w[\w+.-]*:|//).*} - options - when String - request.protocol + request.host_with_port + options - when :back - raise RedirectBackError unless refer = request.headers["Referer"] - refer - when Proc - _compute_redirect_to_location options.call - else - url_for(options) - end.delete("\0\r\n") - end end end |