
During two months on the instructure/canvas-android repository, Dhiraj Kag built and integrated feature-flag-driven access controls across messaging, file management, and calendar event creation. He used Kotlin, Java, and dependency injection to implement per-app and per-role behavior, such as restricting student access to messaging actions and file uploads, and gating calendar event creation for students. His approach leveraged feature flags to enable configurable, policy-driven user experiences, allowing for safe rollout and rollback of new restrictions. The work demonstrated depth in Android development and UI/UX design, delivering scalable, maintainable solutions that improved security and administrative control without disrupting user experience.

September 2025 — Implemented feature-flag-based RBAC controls in the Canvas Android app, delivering two targeted security-focused improvements and laying a foundation for scalable access management: (1) student file access restricted via a new feature flag (restrict_student_access) affecting FileListFragment and inbox flows; (2) calendar event creation gated for students using a CalendarBehavior interface and a StudentCalendarBehavior implementation. Both changes integrate with existing UI layers to enforce role-based access, enabling safer rollout and quicker rollback if needed. These efforts reduce risk of data exposure and improve admin control over student capabilities, while preserving user experience for roles with permissioned access.
September 2025 — Implemented feature-flag-based RBAC controls in the Canvas Android app, delivering two targeted security-focused improvements and laying a foundation for scalable access management: (1) student file access restricted via a new feature flag (restrict_student_access) affecting FileListFragment and inbox flows; (2) calendar event creation gated for students using a CalendarBehavior interface and a StudentCalendarBehavior implementation. Both changes integrate with existing UI layers to enforce role-based access, enabling safer rollout and quicker rollback if needed. These efforts reduce risk of data exposure and improve admin control over student capabilities, while preserving user experience for roles with permissioned access.
August 2025 monthly summary for instructure/canvas-android: Delivered feature-flag controlled messaging actions across Inbox with per-app behavior and access tightening. Implemented per-app visibility rules: Teacher app honors the send_individual flag; Parent/Student apps default to non-restricted behavior; when restricted_student_access is enabled, delete and Reply All are hidden across all apps. This work strengthens security, policy compliance, and user experience by enabling configurable, safe messaging actions and reducing surface area for students. Key commits include 82275d0ed6d7933b1fa2dd3dddb1d61d0c147b34 and 5a7f974863a1d2c63e16d46d3180604226993040.
August 2025 monthly summary for instructure/canvas-android: Delivered feature-flag controlled messaging actions across Inbox with per-app behavior and access tightening. Implemented per-app visibility rules: Teacher app honors the send_individual flag; Parent/Student apps default to non-restricted behavior; when restricted_student_access is enabled, delete and Reply All are hidden across all apps. This work strengthens security, policy compliance, and user experience by enabling configurable, safe messaging actions and reducing surface area for students. Key commits include 82275d0ed6d7933b1fa2dd3dddb1d61d0c147b34 and 5a7f974863a1d2c63e16d46d3180604226993040.
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