Chat webhook possibile bug - delegato, ma webhook è nil

I’m loathe to try and recreate it, but I think we found/made a bug: Built and tested a chat webhook manually with curl, deleted the key, and sent more requests on the old key. Existing chat channel with threading previously disabled, worked fine previously, then corrupted.

Rough steps I took:

  1. Added webhook where bot account posts,

  2. works great using public curl utility to test the api
    2.1 Deploy webhook to our back end software, works
    2.2 don’t trust curl utility with secrit key, burn the webhook
    2.3 may or may not have updated our back end to use a new key, might have sent a curl with the old key
    2.4 all heck breaks loose.

  3. Possibly use old webhook after it was deleted

  4. Chat channel totally breaks. I suspect something in the database but I’m not technical enough to know what or how to even guess. Stops rendering, gets a bunch of errors on front end. ‘unread’ status won’t go away. Sending messages in channel seems to work (to local cache I presume), but on leaving channel, posting elsewhere, and returning message is there. Refresh page, all messages gone again. 4.1 Webhook starts returning 500 internal server error.

  5. Built new webhook with similar parameters posting in various channels. Other channels work, broken channel borked.

  6. Deleted borked channel entirely
    6.1 rebuilt channel with identical settings/name

  7. Pointed new working (5.) webhook at new channel - Success.

Observation - sending a bad key intentionally generates a 404 as it should. No errors logged.

38 copies in this instance - every time someone hits anything regarding chat it goes up.

Error log/trace
### Message (38 copies reported)

Module::DelegationError (Chat::WebhookEvent#username delegated to incoming_chat_webhook.username, but incoming_chat_webhook is nil: #<Chat::WebhookEvent id: 1, chat_message_id: 804, incoming_chat_webhook_id: 1, created_at: "2023-07-28 22:54:54.832175000 +0000", updated_at: "2023-07-28 22:54:54.832175000 +0000">) (eval):3:in `_fast_attributes' lib/freedom_patches/ams_include_without_root.rb:57:in `include!' app/controllers/application_controller.rb:551:in `render_json_dump' app/controllers/application_controller.rb:538:in `render_serialized' app/controllers/application_controller.rb:420:in `block in with_resolved_locale' app/controllers/application_controller.rb:420:in `with_resolved_locale' lib/middleware/omniauth_bypass_middleware.rb:74:in `call' lib/content_security_policy/middleware.rb:12:in `call' lib/middleware/anonymous_cache.rb:389:in `call' lib/middleware/gtm_script_nonce_injector.rb:10:in `call' config/initializers/100-quiet_logger.rb:20:in `call' config/initializers/100-silence_logger.rb:29:in `call' lib/middleware/enforce_hostname.rb:24:in `call' lib/middleware/request_tracker.rb:228:in `call'

### Backtrace

plugins/chat/app/models/chat/webhook_event.rb:10:in `rescue in username'
plugins/chat/app/models/chat/webhook_event.rb:10:in `username'
active_model_serializers (0.8.4) lib/active_model/serializer.rb:99:in `block in attribute'
(eval):3:in `_fast_attributes'
active_model_serializers (0.8.4) lib/active_model/serializer.rb:468:in `rescue in attributes'
active_model_serializers (0.8.4) lib/active_model/serializer.rb:455:in `attributes'
active_model_serializers (0.8.4) lib/active_model/serializer.rb:480:in `_serializable_hash'
active_model_serializers (0.8.4) lib/active_model/serializer.rb:359:in `serializable_hash'
active_model_serializers (0.8.4) lib/active_model/serializer/associations.rb:200:in `serialize'
lib/freedom_patches/ams_include_without_root.rb:57:in `include!'
active_model_serializers (0.8.4) lib/active_model/serializer.rb:368:in `block in include_associations!'
active_model_serializers (0.8.4) lib/active_model/serializer.rb:367:in `each_key'
active_model_serializers (0.8.4) lib/active_model/serializer.rb:367:in `include_associations!'
active_model_serializers (0.8.4) lib/active_model/serializer.rb:362:in `serializable_hash'
active_model_serializers (0.8.4) lib/active_model/serializer.rb:347:in `as_json'
activesupport (7.0.5.1) lib/active_support/json/encoding.rb:22:in `encode'
activesupport (7.0.5.1) lib/active_support/json/encoding.rb:22:in `encode'
activesupport (7.0.5.1) lib/active_support/core_ext/object/json.rb:42:in `to_json'
active_model_serializers (0.8.4) lib/active_model/serializer.rb:331:in `to_json'
multi_json (1.15.0) lib/multi_json/adapters/oj.rb:56:in `dump'
multi_json (1.15.0) lib/multi_json/adapters/oj.rb:56:in `dump'
multi_json (1.15.0) lib/multi_json/adapter.rb:25:in `dump'
multi_json (1.15.0) lib/multi_json.rb:139:in `dump'
app/controllers/application_controller.rb:551:in `render_json_dump'
app/controllers/application_controller.rb:538:in `render_serialized'
plugins/chat/app/controllers/chat/api/channel_messages_controller.rb:6:in `block (2 levels) in index'
plugins/chat/lib/service_runner.rb:144:in `instance_exec'
plugins/chat/lib/service_runner.rb:144:in `block in add_action'
plugins/chat/lib/service_runner.rb:128:in `call'
plugins/chat/lib/service_runner.rb:115:in `call'
plugins/chat/app/helpers/chat/with_service_helper.rb:18:in `with_service'
plugins/chat/app/controllers/chat/api/channel_messages_controller.rb:5:in `index'
actionpack (7.0.5.1) lib/action_controller/metal/basic_implicit_render.rb:6:in `send_action'
actionpack (7.0.5.1) lib/abstract_controller/base.rb:215:in `process_action'
actionpack (7.0.5.1) lib/action_controller/metal/rendering.rb:165:in `process_action'
actionpack (7.0.5.1) lib/abstract_controller/callbacks.rb:234:in `block in process_action'
activesupport (7.0.5.1) lib/active_support/callbacks.rb:118:in `block in run_callbacks'
app/controllers/application_controller.rb:420:in `block in with_resolved_locale'
i18n (1.14.1) lib/i18n.rb:322:in `with_locale'
app/controllers/application_controller.rb:420:in `with_resolved_locale'
activesupport (7.0.5.1) lib/active_support/callbacks.rb:127:in `block in run_callbacks'
activesupport (7.0.5.1) lib/active_support/callbacks.rb:138:in `run_callbacks'
actionpack (7.0.5.1) lib/abstract_controller/callbacks.rb:233:in `process_action'
actionpack (7.0.5.1) lib/action_controller/metal/rescue.rb:22:in `process_action'
actionpack (7.0.5.1) lib/action_controller/metal/instrumentation.rb:67:in `block in process_action'
activesupport (7.0.5.1) lib/active_support/notifications.rb:206:in `block in instrument'
activesupport (7.0.5.1) lib/active_support/notifications/instrumenter.rb:24:in `instrument'
activesupport (7.0.5.1) lib/active_support/notifications.rb:206:in `instrument'
actionpack (7.0.5.1) lib/action_controller/metal/instrumentation.rb:66:in `process_action'
actionpack (7.0.5.1) lib/action_controller/metal/params_wrapper.rb:259:in `process_action'
activerecord (7.0.5.1) lib/active_record/railties/controller_runtime.rb:27:in `process_action'
actionpack (7.0.5.1) lib/abstract_controller/base.rb:151:in `process'
actionview (7.0.5.1) lib/action_view/rendering.rb:39:in `process'
rack-mini-profiler (3.1.0) lib/mini_profiler/profiling_methods.rb:85:in `block in profile_method'
actionpack (7.0.5.1) lib/action_controller/metal.rb:188:in `dispatch'
actionpack (7.0.5.1) lib/action_controller/metal.rb:251:in `dispatch'
actionpack (7.0.5.1) lib/action_dispatch/routing/route_set.rb:49:in `dispatch'
actionpack (7.0.5.1) lib/action_dispatch/routing/route_set.rb:32:in `serve'
actionpack (7.0.5.1) lib/action_dispatch/journey/router.rb:50:in `block in serve'
actionpack (7.0.5.1) lib/action_dispatch/journey/router.rb:32:in `each'
actionpack (7.0.5.1) lib/action_dispatch/journey/router.rb:32:in `serve'
actionpack (7.0.5.1) lib/action_dispatch/routing/route_set.rb:852:in `call'
railties (7.0.5.1) lib/rails/engine.rb:530:in `call'
railties (7.0.5.1) lib/rails/railtie.rb:226:in `public_send'
railties (7.0.5.1) lib/rails/railtie.rb:226:in `method_missing'
actionpack (7.0.5.1) lib/action_dispatch/routing/mapper.rb:19:in `block in <class:Constraints>'
actionpack (7.0.5.1) lib/action_dispatch/routing/mapper.rb:48:in `serve'
actionpack (7.0.5.1) lib/action_dispatch/journey/router.rb:50:in `block in serve'
actionpack (7.0.5.1) lib/action_dispatch/journey/router.rb:32:in `each'
actionpack (7.0.5.1) lib/action_dispatch/journey/router.rb:32:in `serve'
actionpack (7.0.5.1) lib/action_dispatch/routing/route_set.rb:852:in `call'
lib/middleware/omniauth_bypass_middleware.rb:74:in `call'
rack (2.2.7) lib/rack/tempfile_reaper.rb:15:in `call'
rack (2.2.7) lib/rack/conditional_get.rb:27:in `call'
rack (2.2.7) lib/rack/head.rb:12:in `call'
actionpack (7.0.5.1) lib/action_dispatch/http/permissions_policy.rb:38:in `call'
lib/content_security_policy/middleware.rb:12:in `call'
lib/middleware/anonymous_cache.rb:389:in `call'
lib/middleware/gtm_script_nonce_injector.rb:10:in `call'
rack (2.2.7) lib/rack/session/abstract/id.rb:266:in `context'
rack (2.2.7) lib/rack/session/abstract/id.rb:260:in `call'
actionpack (7.0.5.1) lib/action_dispatch/middleware/cookies.rb:704:in `call'
actionpack (7.0.5.1) lib/action_dispatch/middleware/callbacks.rb:27:in `block in call'
activesupport (7.0.5.1) lib/active_support/callbacks.rb:99:in `run_callbacks'
actionpack (7.0.5.1) lib/action_dispatch/middleware/callbacks.rb:26:in `call'
actionpack (7.0.5.1) lib/action_dispatch/middleware/debug_exceptions.rb:28:in `call'
actionpack (7.0.5.1) lib/action_dispatch/middleware/show_exceptions.rb:26:in `call'
logster (2.12.2) lib/logster/middleware/reporter.rb:43:in `call'
railties (7.0.5.1) lib/rails/rack/logger.rb:40:in `call_app'
railties (7.0.5.1) lib/rails/rack/logger.rb:27:in `call'
config/initializers/100-quiet_logger.rb:20:in `call'
config/initializers/100-silence_logger.rb:29:in `call'
actionpack (7.0.5.1) lib/action_dispatch/middleware/remote_ip.rb:93:in `call'
actionpack (7.0.5.1) lib/action_dispatch/middleware/request_id.rb:26:in `call'
lib/middleware/enforce_hostname.rb:24:in `call'
rack (2.2.7) lib/rack/method_override.rb:24:in `call'
actionpack (7.0.5.1) lib/action_dispatch/middleware/executor.rb:14:in `call'
rack (2.2.7) lib/rack/sendfile.rb:110:in `call'
actionpack (7.0.5.1) lib/action_dispatch/middleware/host_authorization.rb:131:in `call'
rack-mini-profiler (3.1.0) lib/mini_profiler.rb:260:in `call'
message_bus (4.3.7) lib/message_bus/rack/middleware.rb:60:in `call'
lib/middleware/request_tracker.rb:228:in `call'
railties (7.0.5.1) lib/rails/engine.rb:530:in `call'
railties (7.0.5.1) lib/rails/railtie.rb:226:in `public_send'
railties (7.0.5.1) lib/rails/railtie.rb:226:in `method_missing'
rack (2.2.7) lib/rack/urlmap.rb:74:in `block in call'
rack (2.2.7) lib/rack/urlmap.rb:58:in `each'
rack (2.2.7) lib/rack/urlmap.rb:58:in `call'
unicorn (6.1.0) lib/unicorn/http_server.rb:634:in `process_client'
unicorn (6.1.0) lib/unicorn/http_server.rb:739:in `worker_loop'
unicorn (6.1.0) lib/unicorn/http_server.rb:547:in `spawn_missing_workers'
unicorn (6.1.0) lib/unicorn/http_server.rb:143:in `start'
unicorn (6.1.0) bin/unicorn:128:in `<top (required)>'
vendor/bundle/ruby/3.2.0/bin/unicorn:25:in `load'
vendor/bundle/ruby/3.2.0/bin/unicorn:25:in `<main>'
1 Mi Piace

Forse usa read webhook_url (e usa $webhook_url dove altrimenti useresti l’URL del webhook) per tenere l’URL del webhook fuori dai log della cronologia della shell (supponendo che questo sia un problema).

2 Mi Piace

Consiglio corretto. Per tua informazione, stavo giocando con le impostazioni da un computer di lavoro bloccato, quindi stavo usando un’utility curl basata sul web per inviare i comandi per il test. Non mi fidavo di quel servizio web a non memorizzare nella cache i comandi e/o a non divulgarli in una data successiva.

Sarebbe una bella funzionalità per i ganci di chat: la possibilità di riciclare/bruciare la chiave senza eliminare l’intero gancio e ricrearlo.

1 Mi Piace

Ottima osservazione, grazie :+1:

Questo verrà corretto in:

Nota, questo impedisce solo che l’errore si verifichi, se sei già in questo stato hai due soluzioni per ora:

  • crea un nuovo canale
  • elimina manualmente i record orfani di chat_webhook_events

Dato che ho avuto solo un resoconto di questo, non sto fornendo nulla per gestirlo, ma se ci saranno casi ti assisterò.

4 Mi Piace

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