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-rw-r--r--actionpack/CHANGELOG.md19
-rw-r--r--actionpack/lib/action_controller/metal/exceptions.rb3
-rw-r--r--actionpack/lib/action_controller/metal/implicit_render.rb14
-rw-r--r--actionpack/lib/action_dispatch/http/filter_parameters.rb4
-rw-r--r--actionpack/lib/action_dispatch/middleware/debug_exceptions.rb24
-rw-r--r--actionpack/lib/action_dispatch/middleware/exception_wrapper.rb12
-rw-r--r--actionpack/lib/action_dispatch/middleware/templates/rescues/missing_exact_template.html.erb19
-rw-r--r--actionpack/lib/action_dispatch/middleware/templates/rescues/missing_exact_template.text.erb3
-rw-r--r--actionpack/test/controller/action_pack_assertions_test.rb2
-rw-r--r--actionpack/test/controller/mime/respond_to_test.rb4
-rw-r--r--actionpack/test/controller/render_test.rb2
-rw-r--r--actionpack/test/dispatch/debug_exceptions_test.rb24
12 files changed, 106 insertions, 24 deletions
diff --git a/actionpack/CHANGELOG.md b/actionpack/CHANGELOG.md
index a370c3fc99..a13d9e1078 100644
--- a/actionpack/CHANGELOG.md
+++ b/actionpack/CHANGELOG.md
@@ -1,3 +1,22 @@
+* Introduce a new error page to when the implict render page is accessed in the browser.
+
+ Now instead of showing an error page that with exception and backtraces we now show only
+ one informative page.
+
+ *Vinicius Stock*
+
+* Introduce ActionDispatch::DebugExceptions.register_interceptor
+
+ Exception aware plugin authors can use the newly introduced
+ `.register_interceptor` method to get the processed exception, instead of
+ monkey patching DebugExceptions.
+
+ ActionDispatch::DebugExceptions.register_interceptor do |request, exception|
+ HypoteticalPlugin.capture_exception(request, exception)
+ end
+
+ *Genadi Samokovarov*
+
* Output only one Content-Security-Policy nonce header value per request.
Fixes #32597.
diff --git a/actionpack/lib/action_controller/metal/exceptions.rb b/actionpack/lib/action_controller/metal/exceptions.rb
index 58db4a1458..ce9eb209fe 100644
--- a/actionpack/lib/action_controller/metal/exceptions.rb
+++ b/actionpack/lib/action_controller/metal/exceptions.rb
@@ -50,4 +50,7 @@ module ActionController
class UnknownFormat < ActionControllerError #:nodoc:
end
+
+ class MissingExactTemplate < UnknownFormat #:nodoc:
+ end
end
diff --git a/actionpack/lib/action_controller/metal/implicit_render.rb b/actionpack/lib/action_controller/metal/implicit_render.rb
index ac0c127cdc..d3bb58f48b 100644
--- a/actionpack/lib/action_controller/metal/implicit_render.rb
+++ b/actionpack/lib/action_controller/metal/implicit_render.rb
@@ -41,18 +41,8 @@ module ActionController
raise ActionController::UnknownFormat, message
elsif interactive_browser_request?
- message = "#{self.class.name}\##{action_name} is missing a template " \
- "for this request format and variant.\n\n" \
- "request.formats: #{request.formats.map(&:to_s).inspect}\n" \
- "request.variant: #{request.variant.inspect}\n\n" \
- "NOTE! For XHR/Ajax or API requests, this action would normally " \
- "respond with 204 No Content: an empty white screen. Since you're " \
- "loading it in a web browser, we assume that you expected to " \
- "actually render a template, not nothing, so we're showing an " \
- "error to be extra-clear. If you expect 204 No Content, carry on. " \
- "That's what you'll get from an XHR or API request. Give it a shot."
-
- raise ActionController::UnknownFormat, message
+ message = "#{self.class.name}\##{action_name} is missing a template for request formats: #{request.formats.map(&:to_s).join(',')}"
+ raise ActionController::MissingExactTemplate, message
else
logger.info "No template found for #{self.class.name}\##{action_name}, rendering head :no_content" if logger
super
diff --git a/actionpack/lib/action_dispatch/http/filter_parameters.rb b/actionpack/lib/action_dispatch/http/filter_parameters.rb
index ec86b8bc47..ec012ad02d 100644
--- a/actionpack/lib/action_dispatch/http/filter_parameters.rb
+++ b/actionpack/lib/action_dispatch/http/filter_parameters.rb
@@ -9,8 +9,8 @@ module ActionDispatch
# sub-hashes of the params hash to filter. Filtering only certain sub-keys
# from a hash is possible by using the dot notation: 'credit_card.number'.
# If a block is given, each key and value of the params hash and all
- # sub-hashes is passed to it, where the value or the key can be replaced using
- # String#replace or similar method.
+ # sub-hashes are passed to it, where the value or the key can be replaced using
+ # String#replace or similar methods.
#
# env["action_dispatch.parameter_filter"] = [:password]
# => replaces the value to all keys matching /password/i with "[FILTERED]"
diff --git a/actionpack/lib/action_dispatch/middleware/debug_exceptions.rb b/actionpack/lib/action_dispatch/middleware/debug_exceptions.rb
index 511306eb0e..33edad8bd9 100644
--- a/actionpack/lib/action_dispatch/middleware/debug_exceptions.rb
+++ b/actionpack/lib/action_dispatch/middleware/debug_exceptions.rb
@@ -50,10 +50,18 @@ module ActionDispatch
end
end
- def initialize(app, routes_app = nil, response_format = :default)
+ cattr_reader :interceptors, instance_accessor: false, default: []
+
+ def self.register_interceptor(object = nil, &block)
+ interceptor = object || block
+ interceptors << interceptor
+ end
+
+ def initialize(app, routes_app = nil, response_format = :default, interceptors = self.class.interceptors)
@app = app
@routes_app = routes_app
@response_format = response_format
+ @interceptors = interceptors
end
def call(env)
@@ -67,12 +75,26 @@ module ActionDispatch
response
rescue Exception => exception
+ invoke_interceptors(request, exception)
raise exception unless request.show_exceptions?
render_exception(request, exception)
end
private
+ def invoke_interceptors(request, exception)
+ backtrace_cleaner = request.get_header("action_dispatch.backtrace_cleaner")
+ wrapper = ExceptionWrapper.new(backtrace_cleaner, exception)
+
+ @interceptors.each do |interceptor|
+ begin
+ interceptor.call(request, exception)
+ rescue Exception
+ log_error(request, wrapper)
+ end
+ end
+ end
+
def render_exception(request, exception)
backtrace_cleaner = request.get_header("action_dispatch.backtrace_cleaner")
wrapper = ExceptionWrapper.new(backtrace_cleaner, exception)
diff --git a/actionpack/lib/action_dispatch/middleware/exception_wrapper.rb b/actionpack/lib/action_dispatch/middleware/exception_wrapper.rb
index d1b4508378..f05c69137b 100644
--- a/actionpack/lib/action_dispatch/middleware/exception_wrapper.rb
+++ b/actionpack/lib/action_dispatch/middleware/exception_wrapper.rb
@@ -12,6 +12,7 @@ module ActionDispatch
"ActionController::UnknownHttpMethod" => :method_not_allowed,
"ActionController::NotImplemented" => :not_implemented,
"ActionController::UnknownFormat" => :not_acceptable,
+ "ActionController::MissingExactTemplate" => :not_acceptable,
"ActionController::InvalidAuthenticityToken" => :unprocessable_entity,
"ActionController::InvalidCrossOriginRequest" => :unprocessable_entity,
"ActionDispatch::Http::Parameters::ParseError" => :bad_request,
@@ -22,11 +23,12 @@ module ActionDispatch
)
cattr_accessor :rescue_templates, default: Hash.new("diagnostics").merge!(
- "ActionView::MissingTemplate" => "missing_template",
- "ActionController::RoutingError" => "routing_error",
- "AbstractController::ActionNotFound" => "unknown_action",
- "ActiveRecord::StatementInvalid" => "invalid_statement",
- "ActionView::Template::Error" => "template_error"
+ "ActionView::MissingTemplate" => "missing_template",
+ "ActionController::RoutingError" => "routing_error",
+ "AbstractController::ActionNotFound" => "unknown_action",
+ "ActiveRecord::StatementInvalid" => "invalid_statement",
+ "ActionView::Template::Error" => "template_error",
+ "ActionController::MissingExactTemplate" => "missing_exact_template",
)
attr_reader :backtrace_cleaner, :exception, :line_number, :file
diff --git a/actionpack/lib/action_dispatch/middleware/templates/rescues/missing_exact_template.html.erb b/actionpack/lib/action_dispatch/middleware/templates/rescues/missing_exact_template.html.erb
new file mode 100644
index 0000000000..3621ea81de
--- /dev/null
+++ b/actionpack/lib/action_dispatch/middleware/templates/rescues/missing_exact_template.html.erb
@@ -0,0 +1,19 @@
+<header>
+ <h1>No template for interactive request</h1>
+</header>
+
+<div id="container">
+ <h3><%= h @exception.message %></h3>
+
+ <p class="summary">
+ <strong>NOTE!</strong><br>
+ Unless told otherwise, Rails expects an action to render a template with the same name,<br>
+ contained in a folder named after its controller.
+
+ If this controller is an API responding with 204 (No Content), <br>
+ which does not require a template,
+ then this error will occur when trying to access it via browser,<br>
+ since we expect an HTML template
+ to be rendered for such requests. If that's the case, carry on.
+ </p>
+</div>
diff --git a/actionpack/lib/action_dispatch/middleware/templates/rescues/missing_exact_template.text.erb b/actionpack/lib/action_dispatch/middleware/templates/rescues/missing_exact_template.text.erb
new file mode 100644
index 0000000000..fcdbe6069d
--- /dev/null
+++ b/actionpack/lib/action_dispatch/middleware/templates/rescues/missing_exact_template.text.erb
@@ -0,0 +1,3 @@
+Missing exact template
+
+<%= @exception.message %>
diff --git a/actionpack/test/controller/action_pack_assertions_test.rb b/actionpack/test/controller/action_pack_assertions_test.rb
index 552b6cbf47..763df3a776 100644
--- a/actionpack/test/controller/action_pack_assertions_test.rb
+++ b/actionpack/test/controller/action_pack_assertions_test.rb
@@ -366,7 +366,7 @@ class ActionPackAssertionsControllerTest < ActionController::TestCase
process :redirect_external
assert_predicate @response, :redirect?
assert_match(/rubyonrails/, @response.redirect_url)
- assert_not /perloffrails/.match(@response.redirect_url)
+ assert_no_match(/perloffrails/, @response.redirect_url)
end
def test_redirection
diff --git a/actionpack/test/controller/mime/respond_to_test.rb b/actionpack/test/controller/mime/respond_to_test.rb
index f9ffd5f54c..771eccb29b 100644
--- a/actionpack/test/controller/mime/respond_to_test.rb
+++ b/actionpack/test/controller/mime/respond_to_test.rb
@@ -658,13 +658,13 @@ class RespondToControllerTest < ActionController::TestCase
end
def test_variant_without_implicit_rendering_from_browser
- assert_raises(ActionController::UnknownFormat) do
+ assert_raises(ActionController::MissingExactTemplate) do
get :variant_without_implicit_template_rendering, params: { v: :does_not_matter }
end
end
def test_variant_variant_not_set_and_without_implicit_rendering_from_browser
- assert_raises(ActionController::UnknownFormat) do
+ assert_raises(ActionController::MissingExactTemplate) do
get :variant_without_implicit_template_rendering
end
end
diff --git a/actionpack/test/controller/render_test.rb b/actionpack/test/controller/render_test.rb
index fc21543049..24c5761e41 100644
--- a/actionpack/test/controller/render_test.rb
+++ b/actionpack/test/controller/render_test.rb
@@ -650,7 +650,7 @@ class ImplicitRenderTest < ActionController::TestCase
tests ImplicitRenderTestController
def test_implicit_no_content_response_as_browser
- assert_raises(ActionController::UnknownFormat) do
+ assert_raises(ActionController::MissingExactTemplate) do
get :empty_action
end
end
diff --git a/actionpack/test/dispatch/debug_exceptions_test.rb b/actionpack/test/dispatch/debug_exceptions_test.rb
index 60acba0616..045567ff83 100644
--- a/actionpack/test/dispatch/debug_exceptions_test.rb
+++ b/actionpack/test/dispatch/debug_exceptions_test.rb
@@ -3,6 +3,8 @@
require "abstract_unit"
class DebugExceptionsTest < ActionDispatch::IntegrationTest
+ InterceptedErrorInstance = StandardError.new
+
class Boomer
attr_accessor :closed
@@ -36,6 +38,8 @@ class DebugExceptionsTest < ActionDispatch::IntegrationTest
raise RuntimeError
when %r{/method_not_allowed}
raise ActionController::MethodNotAllowed
+ when %r{/intercepted_error}
+ raise InterceptedErrorInstance
when %r{/unknown_http_method}
raise ActionController::UnknownHttpMethod
when %r{/not_implemented}
@@ -76,9 +80,13 @@ class DebugExceptionsTest < ActionDispatch::IntegrationTest
end
end
+ Interceptor = proc { |request, exception| request.set_header("int", exception) }
+ BadInterceptor = proc { |request, exception| raise "bad" }
RoutesApp = Struct.new(:routes).new(SharedTestRoutes)
ProductionApp = ActionDispatch::DebugExceptions.new(Boomer.new(false), RoutesApp)
DevelopmentApp = ActionDispatch::DebugExceptions.new(Boomer.new(true), RoutesApp)
+ InterceptedApp = ActionDispatch::DebugExceptions.new(Boomer.new(true), RoutesApp, :default, [Interceptor])
+ BadInterceptedApp = ActionDispatch::DebugExceptions.new(Boomer.new(true), RoutesApp, :default, [BadInterceptor])
test "skip diagnosis if not showing detailed exceptions" do
@app = ProductionApp
@@ -499,4 +507,20 @@ class DebugExceptionsTest < ActionDispatch::IntegrationTest
end
end
end
+
+ test "invoke interceptors before rendering" do
+ @app = InterceptedApp
+ get "/intercepted_error", headers: { "action_dispatch.show_exceptions" => true }
+
+ assert_equal InterceptedErrorInstance, request.get_header("int")
+ end
+
+ test "bad interceptors doesn't debug exceptions" do
+ @app = BadInterceptedApp
+
+ get "/puke", headers: { "action_dispatch.show_exceptions" => true }
+
+ assert_response 500
+ assert_match(/puke/, body)
+ end
end