# Description of Changes
`i18next` allows this pattern for translations, which we use quite a few
times in our current translation files:
```json
{
"a": {
"b": "hello"
},
"a.b": "world"
}
```
This makes it ambiguous when selecting `a.b` which string will be
retrieved. We have seen issues in other languages in the current release
like this:
<img width="325" height="249" alt="image"
src="https://github.com/user-attachments/assets/f24a29f0-550f-49b8-b355-c5e5eb436558"
/>
because we are expecting this:
<img width="1022" height="210" alt="image"
src="https://github.com/user-attachments/assets/b6d5cdd4-96cd-4b2b-8f1a-465da8bf70c8"
/>
but the Spanish file has:
<img width="312" height="136" alt="image"
src="https://github.com/user-attachments/assets/1e13392c-8484-47d1-b0c4-19d52b3ea5eb"
/>
and no `removeDigitalSignature` key on its own.
This PR resolves all of these ambiguities in the source by restructuring
all of the keys to uniquely target either an object or a string, not
both. It also adds a test which will fail on any keys with a `.` in
their name, therefore making it impossible to add anything ambiguous.
Main Issues Fixed:
1. Tools Disabled on Initial Login (Required Page Refresh)
Problem: After successful login, all PDF tools appeared grayed
out/disabled until the user refreshed the page.
Root Cause: Race condition where tools checked endpoint availability
before JWT was stored in localStorage.
Fix:
- Implemented optimistic defaults in useEndpointConfig - assumes
endpoints are enabled when no JWT exists
- Added JWT availability event system (jwt-available event) to notify
components when authentication is ready
- Tools now remain enabled during auth initialization instead of
defaulting to disabled
2. Session Lost on Page Refresh (Immediate Logout)
Problem: Users were immediately logged out when refreshing the page,
losing their authenticated session.
Root Causes:
- Spring Security form login was redirecting API calls to /login with
302 responses instead of returning JSON
- /api/v1/auth/me endpoint was incorrectly in the permitAll list
- JWT filter wasn't allowing /api/v1/config endpoints without
authentication
Fixes:
- Backend: Disabled form login in v2/JWT mode by adding && !v2Enabled
condition to form login configuration
- Backend: Removed /api/v1/auth/me from permitAll list - it now requires
authentication
- Backend: Added /api/v1/config to public endpoints in JWT filter
- Backend: Configured proper exception handling for API endpoints to
return JSON (401) instead of HTML redirects (302)
3. Multiple Duplicate API Calls
Problem: After login, /app-config was called 5+ times,
/endpoints-enabled and /me called multiple times, causing unnecessary
network traffic.
Root Cause: Multiple React components each had their own instance of
useAppConfig and useEndpointConfig hooks, each fetching data
independently.
Fix:
- Frontend: Created singleton AppConfigContext provider to ensure only
one global config fetch
- Frontend: Added global caching to useEndpointConfig with module-level
cache variables
- Frontend: Implemented fetch deduplication with fetchCount tracking and
globalFetchedSets
- Result: Reduced API calls from 5+ to 1-2 per endpoint (2 in dev due to
React StrictMode)
Additional Improvements:
CORS Configuration
- Added flexible CORS configuration matching SaaS pattern
- Explicitly allows localhost development ports (3000, 5173, 5174, etc.)
- No hardcoded URLs in application.properties
Security Handlers Integration
- Added IP-based account locking without dependency on form login
- Preserved audit logging with @Audited annotations
Key Code Changes:
Backend Files:
- SecurityConfiguration.java - Disabled form login for v2, added CORS
config
- JwtAuthenticationFilter.java - Added /api/v1/config to public
endpoints
- JwtAuthenticationEntryPoint.java - Returns JSON for API requests
Frontend Files:
- AppConfigContext.tsx - New singleton context for app configuration
- useEndpointConfig.ts - Added global caching and deduplication
- UseSession.tsx - Removed redundant config checking
- Various hooks - Updated to use context providers instead of direct
fetching
---------
Signed-off-by: dependabot[bot] <support@github.com>
Signed-off-by: stirlingbot[bot] <stirlingbot[bot]@users.noreply.github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Ludy <Ludy87@users.noreply.github.com>
Co-authored-by: EthanHealy01 <80844253+EthanHealy01@users.noreply.github.com>
Co-authored-by: Ethan <ethan@MacBook-Pro.local>
Co-authored-by: Anthony Stirling <77850077+Frooodle@users.noreply.github.com>
Co-authored-by: stirlingbot[bot] <195170888+stirlingbot[bot]@users.noreply.github.com>
Co-authored-by: ConnorYoh <40631091+ConnorYoh@users.noreply.github.com>
Co-authored-by: Connor Yoh <connor@stirlingpdf.com>
