symfony/symfony
Jul 2025 – Jul 2025
1 Month active
Languages Used
PHP
Technical Skills
API IntegrationBackend DevelopmentSecurity
Richard Henkenjohann
PROFILE
Richard Henkenjohann
Richard Henkenjohann enhanced security and authentication reliability across two major repositories during a two-month period. In symfony/symfony, he expanded the Brevo webhook IP allowlist, updating backend validation logic in PHP to accept an additional trusted IP range and ensure only authorized sources could interact with the integration. Later, in cal.com, he addressed OIDC interoperability by fixing a bug in the authentication flow, ensuring the issuer parameter was correctly included in Keycloak responses. This TypeScript-based change improved compatibility with openid-client and Keycloak v18+, reducing enterprise login failures and adding regression tests to maintain robust backend authentication standards.
Overall Statistics
Feature vs Bugs
50%Features
Repository Contributions
2Total
Bugs
1
Commits
2
Features
1
Lines of code
12
Activity Months2
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643 peopleShared Repositories
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Work History
March 2026
1 Commits
Mar 1, 2026March 2026 monthly developer summary for cal.com. Focused on authentication reliability and OIDC interoperability with Keycloak. Delivered a critical bug fix to ensure the 'iss' issuer parameter is included in OIDC responses, aligning with RFC 9207 and resolving validation errors in the openid-client library. This change improves enterprise login reliability and security posture; supported by code changes in the OIDC route to preserve and pass through issuer-related parameters (iss, session_state) alongside code/state. The fix prevents 'invalid response encountered' errors and enhances compatibility with Keycloak v18+ and other providers.
1 Commits
Mar 1, 2026March 2026 monthly developer summary for cal.com. Focused on authentication reliability and OIDC interoperability with Keycloak. Delivered a critical bug fix to ensure the 'iss' issuer parameter is included in OIDC responses, aligning with RFC 9207 and resolving validation errors in the openid-client library. This change improves enterprise login reliability and security posture; supported by code changes in the OIDC route to preserve and pass through issuer-related parameters (iss, session_state) alongside code/state. The fix prevents 'invalid response encountered' errors and enhances compatibility with Keycloak v18+ and other providers.
March 2026
July 2025
1 Commits • 1 Features
Jul 1, 2025Month: 2025-07 — Security-focused feature delivery in symfony/symfony: expanded Brevo webhook IP allowlist to include an additional trusted IP range to improve validation, security, and reliability of the Brevo integration. No major bug fixes documented this month for this repo.
July 2025
1 Commits • 1 Features
Jul 1, 2025Month: 2025-07 — Security-focused feature delivery in symfony/symfony: expanded Brevo webhook IP allowlist to include an additional trusted IP range to improve validation, security, and reliability of the Brevo integration. No major bug fixes documented this month for this repo.
Activity
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Quality Metrics
Correctness90.0%
Maintainability90.0%
Architecture90.0%
Performance90.0%
AI Usage20.0%
Skills & Technologies
Programming Languages
PHPTypeScript
Technical Skills
API IntegrationAPI developmentBackend DevelopmentSecurityauthenticationbackend development
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline
calcom/cal.com
Mar 2026 – Mar 2026
1 Month active
Languages Used
TypeScript
Technical Skills
API developmentauthenticationbackend development