fix: Custom OAuth modern flow drops email claim, breaking account merge - #42063
fix: Custom OAuth modern flow drops email claim, breaking account merge#42063animesh68 wants to merge 3 commits into
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The object literal in verifyFunction.ts set `email` as the last key using `profile?.emails?.[0]?.value`, which silently overwrote a valid `profile.email` string (as set by CustomOAuthStrategy) with `undefined`, since Custom OAuth doesn't follow the standard Passport `profile.emails` array convention used by Google/GitHub/Facebook. This caused two effects on Custom OAuth "Use Modern OAuth Flow": - New users were created with no email address. - The email-based merge hook in customOAuth.ts silently failed (`findOneByEmailAddress(undefined)`), falling through to user creation, which collided on username and threw an unhandled promise rejection — hanging the browser on an infinite loading screen. Fixes: - verifyFunction.ts / configureOAuthServices.ts: resolve `email` and `name` with a fallback chain (profile.emails -> profile.email -> _json.email), applied last in the object literal so nothing can silently overwrite the resolved value. Wrapped in try/catch so errors always reach done(err) instead of hanging. - addPassportCustomOAuth.ts: added .catch() on verifyFunction() as defense in depth. - customOAuth.ts: normalizeIdentity() now also populates identity.emails and identity.displayName, aligning Custom OAuth's identity shape with the standard Passport Profile convention. Fixes RocketChat#42062
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| Layer / File(s) | Summary |
|---|---|
Resolve and apply OAuth profile fields apps/meteor/server/lib/oauth/resolveOAuthProfile.ts, apps/meteor/server/lib/oauth/verifyFunction.ts, apps/meteor/server/lib/oauth/configureOAuthServices.ts |
The OAuth callback delegates profile normalization to resolveOAuthProfile. The resolver supports standard, flat, and _json.email fields. The normalized data is passed to updateOrCreateUserFromExternalService. |
Normalize custom OAuth identity fields apps/meteor/server/lib/auth-providers/custom-oauth/customOAuth.ts |
normalizeIdentity sets displayName from the resolved name and no longer creates an emails array from email. |
Cover OAuth profile resolution apps/meteor/server/lib/oauth/verifyFunction.spec.ts, apps/meteor/jest.config.ts, .changeset/custom-oauth-modern-flow-email-merge.md |
Tests cover field precedence, fallback values, error handling, and missing users. Jest now discovers the OAuth specs. A patch changeset records the fix. |
Estimated code review effort: 3 (Moderate) | ~20 minutes
Merge Risk: ⚪ Minimal · up to 64eb9
Custom OAuth modern-flow sign-ins now preserve resolved profile email and name data so matching accounts can be merged correctly. The updated callback path retains its existing failure handling and is covered by focused regression tests.
Sequence Diagram(s)
sequenceDiagram
participant OAuthStrategy
participant verifyFunction
participant resolveOAuthProfile
participant Accounts
OAuthStrategy->>verifyFunction: pass OAuth profile
verifyFunction->>resolveOAuthProfile: resolve email and name
resolveOAuthProfile-->>verifyFunction: return normalized profile
verifyFunction->>Accounts: update or create external-service user
Accounts-->>verifyFunction: return user or error
Suggested labels: type: bug, type: feature
Suggested reviewers: yash-rajpal
🚥 Pre-merge checks | ✅ 5
✅ Passed checks (5 passed)
| Check name | Status | Explanation |
|---|---|---|
| Linked Issues check | ✅ Passed | The changes address issue #42062 by resolving email and name claims across OAuth profile shapes, passing the normalized data to account provisioning, preserving merge matching, forwarding errors to Pa… |
| Out of Scope Changes check | ✅ Passed | The changeset, Jest configuration, OAuth refactoring, profile resolver, and regression tests directly support the linked issue and stated objectives. No unrelated code changes are evident. |
| Docstring Coverage | ✅ Passed | No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 7… |
| Description Check | ✅ Passed | Check skipped - CodeRabbit’s high-level summary is enabled. |
| Title check | ✅ Passed | The title clearly and concisely describes the main change: preserving the Custom OAuth email claim in the modern flow to restore account merging. |
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Inline comments:
In `@apps/meteor/server/lib/auth-providers/custom-oauth/customOAuth.ts`:
- Line 228: Update the display-name handling in getName and the identity mapping
around identity.displayName so an existing profile displayName is preserved when
identity.name is undefined; only overwrite displayName when a valid
identity.name exists, while retaining the current name mapping for profiles that
provide one.
In `@apps/meteor/server/lib/oauth/verifyFunction.ts`:
- Line 23: Remove the ...profile spread from the payload passed to
Accounts.updateOrCreateUserFromExternalService, leaving restProfile as the
source of profile properties so the previously removed _raw field remains
excluded.
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apps/meteor/server/lib/auth-providers/custom-oauth/customOAuth.tsapps/meteor/server/lib/oauth/addPassportCustomOAuth.tsapps/meteor/server/lib/oauth/configureOAuthServices.tsapps/meteor/server/lib/oauth/verifyFunction.ts
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Files:
apps/meteor/server/lib/oauth/addPassportCustomOAuth.tsapps/meteor/server/lib/oauth/verifyFunction.tsapps/meteor/server/lib/oauth/configureOAuthServices.tsapps/meteor/server/lib/auth-providers/custom-oauth/customOAuth.ts
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apps/meteor/server/lib/oauth/addPassportCustomOAuth.ts (1)
31-31: LGTM!
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All reported issues were addressed across 4 files
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Re-trigger cubic
…Chat#42062 - preserve existing displayName if identity.name is falsy in customOAuth.ts - remove redundant ...profile spread from verifyFunction.ts to avoid re-introducing _raw - remove redundant .catch() on verifyFunction in addPassportCustomOAuth.ts - add changeset for @rocket.chat/meteor patch - add comprehensive unit tests for verifyFunction.ts covering all profile shapes and error handling
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All reported issues were addressed across 6 files
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Re-trigger cubic
…resolution - Remove malformed identity.emails assignment from CustomOAuthStrategy in customOAuth.ts to prevent invalid email document creation in Meteor Accounts - Extract resolveOAuthProfile helper for shared OAuth profile normalization and claim resolution - Update verifyFunction.ts and configureOAuthServices.ts to use the shared helper
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2 issues found across 8 files (changes from recent commits).
Prompt for AI agents (unresolved issues)
Check if these issues are valid — if so, understand the root cause of each and fix them. If appropriate, use sub-agents to investigate and fix each issue separately.
<file name="apps/meteor/server/lib/oauth/resolveOAuthProfile.ts">
<violation number="1" location="apps/meteor/server/lib/oauth/resolveOAuthProfile.ts:17">
P1: When a provider's raw `_json` contains canonical fields that differ from Passport's normalized profile, this spread overwrites the normalized identity. Preserve canonical profile fields by spreading `_json` before `restProfile`, so raw claims cannot change service-account matching.</violation>
<violation number="2" location="apps/meteor/server/lib/oauth/resolveOAuthProfile.ts:18">
P3: The PR claims to exclude 'sensitive raw profile data from user records,' but `resolveOAuthProfile` still spreads the full `_json` provider userinfo into the persisted OAuth service record—only the `_json`/`_raw` wrapper keys are dropped, not their contents. If this is intentional (preserving provider fields), drop or reword the release-note claim; otherwise filter `_json` to a known-safe allowlist.</violation>
</file>
Reply with feedback, questions, or to request a fix.
Re-trigger cubic
| ...restProfile, | ||
| ..._json, |
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P1: When a provider's raw _json contains canonical fields that differ from Passport's normalized profile, this spread overwrites the normalized identity. Preserve canonical profile fields by spreading _json before restProfile, so raw claims cannot change service-account matching.
Prompt for AI agents
Check if this issue is valid — if so, understand the root cause and fix it. At apps/meteor/server/lib/oauth/resolveOAuthProfile.ts, line 17:
<comment>When a provider's raw `_json` contains canonical fields that differ from Passport's normalized profile, this spread overwrites the normalized identity. Preserve canonical profile fields by spreading `_json` before `restProfile`, so raw claims cannot change service-account matching.</comment>
<file context>
@@ -0,0 +1,22 @@
+ const name = profile.displayName || profileWithRaw.name;
+
+ return {
+ ...restProfile,
+ ..._json,
+ ...(name ? { name } : {}),
</file context>
| ...restProfile, | |
| ..._json, | |
| ..._json, | |
| ...restProfile, |
|
|
||
| return { | ||
| ...restProfile, | ||
| ..._json, |
There was a problem hiding this comment.
P3: The PR claims to exclude 'sensitive raw profile data from user records,' but resolveOAuthProfile still spreads the full _json provider userinfo into the persisted OAuth service record—only the _json/_raw wrapper keys are dropped, not their contents. If this is intentional (preserving provider fields), drop or reword the release-note claim; otherwise filter _json to a known-safe allowlist.
Prompt for AI agents
Check if this issue is valid — if so, understand the root cause and fix it. At apps/meteor/server/lib/oauth/resolveOAuthProfile.ts, line 18:
<comment>The PR claims to exclude 'sensitive raw profile data from user records,' but `resolveOAuthProfile` still spreads the full `_json` provider userinfo into the persisted OAuth service record—only the `_json`/`_raw` wrapper keys are dropped, not their contents. If this is intentional (preserving provider fields), drop or reword the release-note claim; otherwise filter `_json` to a known-safe allowlist.</comment>
<file context>
@@ -0,0 +1,22 @@
+
+ return {
+ ...restProfile,
+ ..._json,
+ ...(name ? { name } : {}),
+ ...(email ? { email } : {}),
</file context>
3 participants
Fixes #42062
Custom OAuth "Use Modern OAuth Flow" broke email + account merging.
Root cause
verifyFunction.tssetemail: profile?.emails?.[0]?.valueas the lastkey in the object literal — Custom OAuth returns a flat
profile.emailstring, not the
profile.emailsarray standard providers use, so thisalways evaluated to
undefinedand silently wiped out the valid email.That cascaded into two symptoms:
findOneByEmailAddress(undefined)) matchednothing, fell through to user creation, collided on username, and threw
an unhandled rejection — hanging the browser indefinitely.
Fix
resolveOAuthProfile.ts(new)emails[0]→ flatemail→_json.email), applied last so it can't be overwrittenverifyFunction.tstry/catchso errors reachdone(error)instead of hanging; dropped a redundant...profilespread that leaked_rawconfigureOAuthServices.tsverifyFunction()instead of duplicating the same ~30-line flow (had the identical bug)customOAuth.tsdisplayNameinstead of overwriting it withundefinedverifyFunction.spec.ts(new)_jsonfallback, name-conflict protection, error propagation, user-not-foundChangeset added (
@rocket.chat/meteor, patch).Verified
Key Field: email, modern flowon) end-to-end against the fix — merges into existing
_id, no collision.server/lib/oauth/orserver/lib/auth-providers/depends on the removed
identity.emailsfield.