ملخص
خطأ في قيد قاعدة بيانات Discourse ناتج عن قيم مفتاح مكررة يتم توليدها عندما يحاول مستخدمون ليس لديهم حساب تسجيل الدخول عبر SSO. يتسبب ذلك في ظهور خطأ داخلي في الخادم (500) عبر الوكيل الخارجي.
النقاش
في 28 أو 29 أغسطس، قمت بتحديث Discourse إلى أحدث إصدار تجريبي (v2.4.0.beta2) مع جميع الإضافات المثبتة. في نفس الوقت تقريبًا، قمت أيضًا بتحديث SeAT، وأعدت تكوين Discourse لاستخدام منفذ UNIX (UNIX socket)، والذي يمكن لـ Apache الخارجي أن يعمل كوكيل أو وكيل عكسي له. قبل ذلك، كان بإمكان الأشخاص تسجيل الدخول عبر SSO الخاص بـ EvE Online من خلال SeAT، وإذا لم يكن لديهم حساب بعد، فإن حسابات مستخدمين جديدة في Discourse كانت تُنشأ لهم تلقائيًا.
منذ ذلك الحين، لم يتم إنشاء أي حسابات مستخدمين جديدة بنجاح. وبدلاً من ذلك، قام الأشخاص الثلاثة الذين حاولوا تسجيل الدخول بتوليد أخطاء من نوع: فشل في إنشاء أو البحث عن المستخدم: ERROR: duplicate key value violates constraint "idx_category_users_user_id_category_id" DETAIL: Key (user_id, category_id)=(36, 6) already exists.. يكون category_id دائمًا 6، بينما يتغير user_id بين 33 و44، حتى مع تكرار الأرقام.
بافتراض أن category_id يشير إلى إدخالات في جدول categories، فإن القيمة 6 تبدو أنها تشير إلى فئة “Grass Clippings”. وبافتراض أن user_id يشير إلى إدخالات في جدول users، فإننا لا نملك أي إدخالات أعلى من 32.
الفئة “Grass Clippings” مقيدة للقراءة على الأقل بالنسبة للأشخاص المنتمين إلى المجموعات 2GTHRDiscourse، 2GTHRHighCouncil، وGRoLLake. وكان لدى شخص واحد على الأقل من الذين حاولوا الاتصال أمر add_groups يتضمن جميع هذه المجموعات الثلاث. لم يكن لدى الشخص الأول أيًا من هذه المجموعات الثلاث بعد، بينما كان لدى الشخص الأوسط واحدة على الأقل. جميعهم يولّدون نفس نوع خطأ قاعدة البيانات مع تفاصيل متطابقة باستثناء user_id.
الأشخاص الذين تم إنشاء حساباتهم في Discourse عبر تسجيل الدخول باستخدام SSO قبل الترقية لا يبدون وكأنهم يواجهون مشاكل في تسجيل الدخول.
الأشياء التي جربناها أو نظرنا فيها
-
تعطيل خيار
force httpsوالعودة إلى استخدام وكيل Apache الخارجي للاتصال بمنافذ nginx.
من غير المفاجئ أن هذا لم يكن له أي تأثير. -
تتبعنا المسار الخلفي (backtrace) ولاحظنا أن Discourse وصل إلى
models/discourse_single_sign_on.rbفي السطر 203 من دالةmatch_email_or_create_user()حيث يتم استدعاءUser.create!(). للأسف، يتم تسجيل المعاملات (params) وما إلى ذلك بعد هذه النقطة، والتي لا يتم الوصول إليها أبدًا لأن العملية تتوقف وتُرجع خطأ HTTP 500. تحققت منshared/log/rails/production.log.*احتياطًا.
تعليقات أخرى
-
SeAT: بينما لم يتم تحديث إضافة SeAT لـ Discourse، تم تحديث العديد من مكونات SeAT. من الممكن أن يكون قد حدث تغيير في أحد هذه المكونات. ومع ذلك، فإن الخطأ واضح أنه من جانب Discourse عند محاولة إنشاء أو البحث عن مستخدم غير موجود، لذا أنا مشكك بعض الشيء في أن المشكلة من جانب SeAT.
-
Discourse: لا أتذكر الإصدار التجريبي من Discourse الذي كنت أستخدمه قبل الترقية. أعتقد أنه ربما مر شهر أو شهران على آخر ترقية قمت بها.
تفاصيل إضافية
Error
فشل في إنشاء أو البحث عن المستخدم: ERROR: duplicate key value violates unique constraint "idx_category_users_user_id_category_id"
DETAIL: Key (user_id, category_id)=(36, 6) already exists.
. add_groups: CORPBLUEP,2GTHRAllianceMember,2GTHRALL,2GTHRHighCouncil,2GTHRCorpDirector,2GTHROfficer,DoWCitadelGunner,HCDIM,CORPDIRBLUEP,2GTHRCorpRecruiter,CORPDIRLAWNS,CORPDIR123HC,GRoLLake,DoWCapital,DoWFax,User,CORPHRBLUEP,2GTHRDiscourse
admin:
moderator:
avatar_force_update:
avatar_url: http://image.eveonline.com/Character/740426190_128.jpg
bio:
card_background_url:
email: something@somewhere.com
external_id: 740426190
groups:
locale:
locale_force_update:
name: Mindframe
nonce: e6f9da9e62b720a1efd97348ca20f101
profile_background_url:
remove_groups: Superuser,SPRKYAllianceMember,DoWFieldMarshall,DoWScoutCoordinator,DoWFCGang,DoWFCAlliance,DoWFCSenior,DoWScout,DoWSuper,DoWTitan,DoWFC,2GTHRCorpCEO,DoWTitanBridging,DoLLogisticsSov,DoLLogisticsShipping,HCDoW,HCDoL,HCDoC,HCDoF,DoCDoIT,DoCTechnoMage,DoCDiplomat,DoCDepartmentLead,DoCRecruiterPilots,DoCRecruiterCorporations,DoCDiplomatLead,DoWBLOP,ViewGroups,CORPAIEU,CORPDIRAIEU,CORPZBMC,CORPC.R.Y,CORP123HC,CORPALTBH,CORPLAWNS,CORPDIRZBMC,CORPDIRC.R.Y,CORPDIRALTBH,CORPF3R4L,CORPDIRF3R4L,CORPSPRKY,CORPDIRSPRKY,CORPRMKR,CORPDIRRMKR,CORPHR123HC,CORPHRAIEU,CORPHRZBMC,CORPHRC.R.Y,CORPHRF3R4L,SPRKYDiscourse,CORPHRLAWNS,CORPDIROUSYN,CORPHROUSYN,CORPOUSYN,DoWReimbursementTeam,DoWCarrier,DoWDread,WCMember,WCALL,WCMindframesMarketVisitors
require_activation:
return_sso_url:
suppress_welcome_message:
title:
username: Mindframe
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