December 2024 was marked by a set of focused, value-driven improvements across opencloud-eu/opencloud and owncloud/reva, prioritizing API accuracy, security hardening, identity simplification, observability, and data integrity. Key outcomes include improved drives API correctness by excluding OCM shares without mountpoints, security hardening through deployment credential cleanup, simplified federated user ID handling in ACEs, enhanced observability with OCM share received events, and robust data integrity by ensuring grants are removed when OCM shares are deleted. Additionally, the Ceph build process was stabilized with a robust Dockerfile update and changelog documentation, contributing to more reliable releases and auditability.

2024-11 Monthly Summary for core repo activity across owncloud/reva and opencloud-eu/opencloud. Key features delivered: - OCM storage provider: Implemented proper checksum extraction from ownCloud-specific properties and integrated a checksum parser into resource information conversion. This ensures accurate checksums in Stat responses and enables thumbnailing support for OCM shares. - JWT validation robustness: Upgraded golang-jwt/jwt to v5 and added leeway support for token timestamps, reducing failures due to clock skew across distributed services. - LDAP/identity enhancements: Added support to combine $search and $filter in LDAP user queries, enabling more precise results when listing users and groups. - Internal permissions refactor: Drive item permissions by passing ResourceId pointers and refining related helpers, improving permission checks and reducing copy-related issues. - Test/log improvement: Replaced tr with sed to remove null bytes in test logs, reducing memory pressure during test runs and simplifying log analysis. - Dependency hygiene: Upgraded critical dependencies (golang-jwt/jwt) to align with security fixes and compatibility across federation changes. Major bugs fixed: - Federation: Use federation provider's domain for federated user IDs during validation to ensure correct matching in federated sharing and invitations. - OCIS backup consistency: Fixed handling of file revisions and trash nodes with missing nanoseconds by updating the regex to optionally match nanoseconds. - OCM Shares and Federated Identity Handling: Correct opaqueId generation for Stat on OCM shares and fix share creation when the user is in cache; address federated identity handling to ensure proper sharedWithMe responses. - Thumbnails: Return 403 instead of 500 for oversized images, clarifying error conditions and protecting against oversized thumbnail generation. Overall impact and accomplishments: - Improved security and trust: faster and more reliable authentication with token leeway and updated JWT library. - Data integrity and interoperability: correct checksums and robust OCM thumbnailing for cross-system sharing. - Better user experiences: more accurate federation behavior, precise LDAP results, and clearer error reporting for thumbnail limits. - Operational efficiency: streamlined permissions checks and more maintainable code via targeted refactors and test log improvements. Technologies/skills demonstrated: - Go (Golang), JWT handling, and dependency management - OCM/OCS integration patterns and Stat response composition - LDAP query optimization and memberOf filtering - Regex handling for timestamp parsing and backup consistency - Code refactoring for resource-based permission checks and pointer semantics - Test instrumentation and build/log hygiene (sed vs tr)

Month: 2024-10 — Focused on stabilizing OCM provider behavior and storage data server URL resolution in opencloud-eu/opencloud. Implemented targeted bug fixes: rolled back an unstable security enhancement (VerifyRequestHostname) and added explicit data_server_url to prevent misrouting of storage downloads. These changes improve reliability, deployment predictability, and security posture for OCM authentication and storage data access.