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rails--rails/actionpack/CHANGELOG.md
Alex Robbin cb23580684
change request method to a GET when passing failed requests to config.exceptions_app 
Similar to #38998 (fixed in #40246), HTTP method validation occurring whenever methods are called on `ActionDispatch::Request` can cause some weird unintended consequences. For example, if `config.exceptions_app = self.routes`, you get an exception raised via the `ActionDispatch::ShowExceptions` middleware failsafe:

```
Started TEST "/" for 127.0.0.1 at 2020-11-05 15:40:31 -0500
   (1.0ms)  SELECT "schema_migrations"."version" FROM "schema_migrations" ORDER BY "schema_migrations"."version" ASC
TEST, accepted HTTP methods are OPTIONS, GET, HEAD, POST, PUT, DELETE, TRACE, CONNECT, PROPFIND, PROPPATCH, MKCOL, COPY, MOVE, LOCK, UNLOCK, VERSION-CONTROL, REPORT, CHECKOUT, CHECKIN, UNCHECKOUT, MKWORKSPACE, UPDATE, LABEL, MERGE, BASELINE-CONTROL, MKACTIVITY, ORDERPATCH, ACL, SEARCH, MKCALENDAR, and PATCH excluded from capture: DSN not set

ActionController::UnknownHttpMethod (TEST, accepted HTTP methods are OPTIONS, GET, HEAD, POST, PUT, DELETE, TRACE, CONNECT, PROPFIND, PROPPATCH, MKCOL, COPY, MOVE, LOCK, UNLOCK, VERSION-CONTROL, REPORT, CHECKOUT, CHECKIN, UNCHECKOUT, MKWORKSPACE, UPDATE, LABEL, MERGE, BASELINE-CONTROL, MKACTIVITY, ORDERPATCH, ACL, SEARCH, MKCALENDAR, and PATCH):

actionpack (6.0.3.4) lib/action_dispatch/http/request.rb:431:in `check_method'
actionpack (6.0.3.4) lib/action_dispatch/http/request.rb:143:in `request_method'
rack (2.2.3) lib/rack/request.rb:187:in `head?'
actionpack (6.0.3.4) lib/action_dispatch/journey/router.rb:113:in `find_routes'
actionpack (6.0.3.4) lib/action_dispatch/journey/router.rb:32:in `serve'
actionpack (6.0.3.4) lib/action_dispatch/routing/route_set.rb:834:in `call'
Error during failsafe response: TEST, accepted HTTP methods are OPTIONS, GET, HEAD, POST, PUT, DELETE, TRACE, CONNECT, PROPFIND, PROPPATCH, MKCOL, COPY, MOVE, LOCK, UNLOCK, VERSION-CONTROL, REPORT, CHECKOUT, CHECKIN, UNCHECKOUT, MKWORKSPACE, UPDATE, LABEL, MERGE, BASELINE-CONTROL, MKACTIVITY, ORDERPATCH, ACL, SEARCH, MKCALENDAR, and PATCH
  /usr/local/var/rbenv/versions/2.7.2/lib/ruby/gems/2.7.0/gems/actionpack-6.0.3.4/lib/action_dispatch/http/request.rb:431:in `check_method'
  /usr/local/var/rbenv/versions/2.7.2/lib/ruby/gems/2.7.0/gems/actionpack-6.0.3.4/lib/action_dispatch/http/request.rb:143:in `request_method'
  /usr/local/var/rbenv/versions/2.7.2/lib/ruby/gems/2.7.0/gems/rack-2.2.3/lib/rack/request.rb:187:in `head?'
  /usr/local/var/rbenv/versions/2.7.2/lib/ruby/gems/2.7.0/gems/actionpack-6.0.3.4/lib/action_dispatch/journey/router.rb:113:in `find_routes'
  /usr/local/var/rbenv/versions/2.7.2/lib/ruby/gems/2.7.0/gems/actionpack-6.0.3.4/lib/action_dispatch/journey/router.rb:32:in `serve'
  /usr/local/var/rbenv/versions/2.7.2/lib/ruby/gems/2.7.0/gems/actionpack-6.0.3.4/lib/action_dispatch/routing/route_set.rb:834:in `call'
  /usr/local/var/rbenv/versions/2.7.2/lib/ruby/gems/2.7.0/gems/actionpack-6.0.3.4/lib/action_dispatch/middleware/show_exceptions.rb:50:in `render_exception'
  /usr/local/var/rbenv/versions/2.7.2/lib/ruby/gems/2.7.0/gems/actionpack-6.0.3.4/lib/action_dispatch/middleware/show_exceptions.rb:36:in `rescue in call'
  /usr/local/var/rbenv/versions/2.7.2/lib/ruby/gems/2.7.0/gems/actionpack-6.0.3.4/lib/action_dispatch/middleware/show_exceptions.rb:31:in `call'
  # ...
```

Now, to prevent the redundant exception, we overwrite `request_method` before passing `env` down to `config.exceptions_app`. `action_dispatch.original_request_method` is set to keep the original request method available for inspection.
2020-12-16 20:48:09 -05:00

474 B
Raw Blame History

Unreleased

  • Change the request method to a GET when passing failed requests down to config.exceptions_app.

    Alex Robbin

  • Add redirect_back_or_to(fallback_location, **) as a more aesthetically pleasing version of redirect_back fallback_location:, **. The old method name is retained without explicit deprecation.

    DHH

Please check 6-1-stable for previous changes.