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-rw-r--r--actionpack/CHANGELOG.md9
-rw-r--r--actionpack/lib/action_controller/metal/rendering.rb4
-rw-r--r--actionpack/test/controller/new_base/render_html_test.rb190
3 files changed, 201 insertions, 2 deletions
diff --git a/actionpack/CHANGELOG.md b/actionpack/CHANGELOG.md
index 3318a088a3..b05aa21f95 100644
--- a/actionpack/CHANGELOG.md
+++ b/actionpack/CHANGELOG.md
@@ -1,3 +1,12 @@
+* Introduce `render :html` as an option to render HTML content with a content
+ type of `text/html`. This rendering option calls `ERB::Util.html_escape`
+ internally to escape unsafe HTML string, so you will have to mark your
+ string as html safe if you have any HTML tag in it.
+
+ Please see #12374 for more detail.
+
+ *Prem Sichanugrist*
+
* Introduce `render :plain` as an option to render content with a content type
of `text/plain`. This is the preferred option if you are planning to render
a plain text content.
diff --git a/actionpack/lib/action_controller/metal/rendering.rb b/actionpack/lib/action_controller/metal/rendering.rb
index 3133334369..cff0405351 100644
--- a/actionpack/lib/action_controller/metal/rendering.rb
+++ b/actionpack/lib/action_controller/metal/rendering.rb
@@ -27,7 +27,7 @@ module ActionController
end
def render_to_body(options = {})
- super || options[:body].presence || options[:text].presence || options[:plain].presence || ' '
+ super || options[:body].presence || options[:text].presence || options[:plain].presence || ERB::Util.h(options[:html]).presence || ' '
end
private
@@ -67,7 +67,7 @@ module ActionController
options[:plain] = options[:plain].to_text
end
- if options.delete(:nothing) || (options.key?(:body) && options[:body].nil?) || (options.key?(:text) && options[:text].nil?) || (options.key?(:plain) && options[:plain].nil?)
+ if options.delete(:nothing) || (options.key?(:body) && options[:body].nil?) || (options.key?(:text) && options[:text].nil?) || (options.key?(:plain) && options[:plain].nil?) || (options.key?(:html) && options[:html].nil?)
options[:body] = " "
end
diff --git a/actionpack/test/controller/new_base/render_html_test.rb b/actionpack/test/controller/new_base/render_html_test.rb
new file mode 100644
index 0000000000..bfe0271df7
--- /dev/null
+++ b/actionpack/test/controller/new_base/render_html_test.rb
@@ -0,0 +1,190 @@
+require 'abstract_unit'
+
+module RenderHtml
+ class MinimalController < ActionController::Metal
+ include AbstractController::Rendering
+ include ActionController::Rendering
+
+ def index
+ render html: "Hello World!"
+ end
+ end
+
+ class SimpleController < ActionController::Base
+ self.view_paths = [ActionView::FixtureResolver.new]
+
+ def index
+ render html: "hello david"
+ end
+ end
+
+ class WithLayoutController < ::ApplicationController
+ self.view_paths = [ActionView::FixtureResolver.new(
+ "layouts/application.html.erb" => "<%= yield %>, I'm here!",
+ "layouts/greetings.html.erb" => "<%= yield %>, I wish thee well.",
+ "layouts/ivar.html.erb" => "<%= yield %>, <%= @ivar %>"
+ )]
+
+ def index
+ render html: "hello david"
+ end
+
+ def custom_code
+ render html: "hello world", status: 404
+ end
+
+ def with_custom_code_as_string
+ render html: "hello world", status: "404 Not Found"
+ end
+
+ def with_nil
+ render html: nil
+ end
+
+ def with_nil_and_status
+ render html: nil, status: 403
+ end
+
+ def with_false
+ render html: false
+ end
+
+ def with_layout_true
+ render html: "hello world", layout: true
+ end
+
+ def with_layout_false
+ render html: "hello world", layout: false
+ end
+
+ def with_layout_nil
+ render html: "hello world", layout: nil
+ end
+
+ def with_custom_layout
+ render html: "hello world", layout: "greetings"
+ end
+
+ def with_ivar_in_layout
+ @ivar = "hello world"
+ render html: "hello world", layout: "ivar"
+ end
+
+ def with_unsafe_html_tag
+ render html: "<p>hello world</p>", layout: nil
+ end
+
+ def with_safe_html_tag
+ render html: "<p>hello world</p>".html_safe, layout: nil
+ end
+ end
+
+ class RenderHtmlTest < Rack::TestCase
+ test "rendering text from a minimal controller" do
+ get "/render_html/minimal/index"
+ assert_body "Hello World!"
+ assert_status 200
+ end
+
+ test "rendering text from an action with default options renders the text with the layout" do
+ with_routing do |set|
+ set.draw { get ':controller', action: 'index' }
+
+ get "/render_html/simple"
+ assert_body "hello david"
+ assert_status 200
+ end
+ end
+
+ test "rendering text from an action with default options renders the text without the layout" do
+ with_routing do |set|
+ set.draw { get ':controller', action: 'index' }
+
+ get "/render_html/with_layout"
+
+ assert_body "hello david"
+ assert_status 200
+ end
+ end
+
+ test "rendering text, while also providing a custom status code" do
+ get "/render_html/with_layout/custom_code"
+
+ assert_body "hello world"
+ assert_status 404
+ end
+
+ test "rendering text with nil returns an empty body padded for Safari" do
+ get "/render_html/with_layout/with_nil"
+
+ assert_body " "
+ assert_status 200
+ end
+
+ test "Rendering text with nil and custom status code returns an empty body padded for Safari and the status" do
+ get "/render_html/with_layout/with_nil_and_status"
+
+ assert_body " "
+ assert_status 403
+ end
+
+ test "rendering text with false returns the string 'false'" do
+ get "/render_html/with_layout/with_false"
+
+ assert_body "false"
+ assert_status 200
+ end
+
+ test "rendering text with layout: true" do
+ get "/render_html/with_layout/with_layout_true"
+
+ assert_body "hello world, I'm here!"
+ assert_status 200
+ end
+
+ test "rendering text with layout: 'greetings'" do
+ get "/render_html/with_layout/with_custom_layout"
+
+ assert_body "hello world, I wish thee well."
+ assert_status 200
+ end
+
+ test "rendering text with layout: false" do
+ get "/render_html/with_layout/with_layout_false"
+
+ assert_body "hello world"
+ assert_status 200
+ end
+
+ test "rendering text with layout: nil" do
+ get "/render_html/with_layout/with_layout_nil"
+
+ assert_body "hello world"
+ assert_status 200
+ end
+
+ test "rendering html should escape the string if it is not html safe" do
+ get "/render_html/with_layout/with_unsafe_html_tag"
+
+ assert_body "&lt;p&gt;hello world&lt;/p&gt;"
+ assert_status 200
+ end
+
+ test "rendering html should not escape the string if it is html safe" do
+ get "/render_html/with_layout/with_safe_html_tag"
+
+ assert_body "<p>hello world</p>"
+ assert_status 200
+ end
+
+ test "rendering from minimal controller returns response with text/html content type" do
+ get "/render_html/minimal/index"
+ assert_content_type "text/html"
+ end
+
+ test "rendering from normal controller returns response with text/html content type" do
+ get "/render_html/simple/index"
+ assert_content_type "text/html; charset=utf-8"
+ end
+ end
+end