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>
# Description of Changes
TLDR:
- Introduced a new "Convert to CMYK" option in Replace Color settings.
- Added tooltips for the new CMYK conversion feature.
- Updated ReplaceColorParameters to support COLOR_SPACE_CONVERSION
option.
For backend reference see this PR: #4494
This pull request adds support for converting PDF colors to the CMYK
color space in the Replace Color tool, which is especially useful for
preparing documents for professional printing. The changes include
updates to the user interface, tooltips, and type definitions to
accommodate this new option.
**Replace Color tool: Add CMYK color space conversion option**
* Feature addition:
* Added a new `COLOR_SPACE_CONVERSION` option to the
`replaceAndInvertOption` parameter in the `ReplaceColorParameters` type,
enabling support for CMYK color conversion.
* Updated the `ReplaceColorSettings` component to include "Convert to
CMYK" as a selectable option in the UI.
* User guidance:
* Added a new tooltip entry explaining the "Convert to CMYK" feature,
describing its purpose and use case for professional printing.
### Front-end
<img width="642" height="994" alt="image"
src="https://github.com/user-attachments/assets/fa1df879-f157-45ca-9865-238238afc093"
/>
<!--
Please provide a summary of the changes, including:
- What was changed
- Why the change was made
- Any challenges encountered
Closes #(issue_number)
-->
---
## Checklist
### General
- [x] I have read the [Contribution
Guidelines](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/CONTRIBUTING.md)
- [x] I have read the [Stirling-PDF Developer
Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/DeveloperGuide.md)
(if applicable)
- [ ] I have read the [How to add new languages to
Stirling-PDF](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/HowToAddNewLanguage.md)
(if applicable)
- [x] I have performed a self-review of my own code
- [x] My changes generate no new warnings
### Documentation
- [ ] I have updated relevant docs on [Stirling-PDF's doc
repo](https://github.com/Stirling-Tools/Stirling-Tools.github.io/blob/main/docs/)
(if functionality has heavily changed)
- [ ] I have read the section [Add New Translation
Tags](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/HowToAddNewLanguage.md#add-new-translation-tags)
(for new translation tags only)
### Translations (if applicable)
- [ ] I ran
[`scripts/counter_translation.py`](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/docs/counter_translation.md)
### UI Changes (if applicable)
- [x] Screenshots or videos demonstrating the UI changes are attached
(e.g., as comments or direct attachments in the PR)
### Testing (if applicable)
- [x] I have tested my changes locally. Refer to the [Testing
Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/DeveloperGuide.md#6-testing)
for more details.
---------
Signed-off-by: Balázs Szücs <bszucs1209@gmail.com>
