Class: Middleware::DiscoursePublicExceptions
- Inherits:
-
ActionDispatch::PublicExceptions
- Object
- ActionDispatch::PublicExceptions
- Middleware::DiscoursePublicExceptions
- Defined in:
- lib/middleware/discourse_public_exceptions.rb
Constant Summary collapse
- INVALID_REQUEST_ERRORS =
Set.new( [ Rack::QueryParser::InvalidParameterError, ActionController::BadRequest, ActionDispatch::Http::Parameters::ParseError, ActionController::RoutingError, ], )
Instance Method Summary collapse
- #call(env) ⇒ Object
-
#initialize(path) ⇒ DiscoursePublicExceptions
constructor
A new instance of DiscoursePublicExceptions.
Constructor Details
#initialize(path) ⇒ DiscoursePublicExceptions
Returns a new instance of DiscoursePublicExceptions.
17 18 19 |
# File 'lib/middleware/discourse_public_exceptions.rb', line 17 def initialize(path) super end |
Instance Method Details
#call(env) ⇒ Object
21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 |
# File 'lib/middleware/discourse_public_exceptions.rb', line 21 def call(env) # this is so so gnarly # sometimes we leak out exceptions prior to creating a controller instance # this can happen if we have an exception in a route constraint in some cases # this code re-dispatches the exception to our application controller so we can # properly translate the exception to a page exception = env["action_dispatch.exception"] response = ActionDispatch::Response.new exception = nil if INVALID_REQUEST_ERRORS.include?(exception) if exception begin fake_controller = ApplicationController.new fake_controller.response = response fake_controller.request = request = ActionDispatch::Request.new(env) # We can not re-dispatch bad mime types begin request.format rescue Mime::Type::InvalidMimeType return [ 400, { "Cache-Control" => "private, max-age=0, must-revalidate" }, ["Invalid MIME type"] ] end # Or badly formatted multipart requests begin request.POST rescue ActionController::BadRequest => error if error.cause.is_a?(EOFError) return [ 400, { "Cache-Control" => "private, max-age=0, must-revalidate" }, ["Invalid request"] ] else raise end end if ApplicationController.rescue_with_handler(exception, object: fake_controller) body = response.body body = [body] if String === body return response.status, response.headers, body end rescue => e return super if INVALID_REQUEST_ERRORS.include?(e.class) Discourse.warn_exception( e, message: "Failed to handle exception in exception app middleware", ) end end super end |