Contract: Add Emergency Pause to Payment Router

[ONEONUORA]

Difficulty: Medium
Category: Security
Priority: 🔴 Critical

Description

Payment router lacks emergency pause functionality for security incidents.

Current Status

❌ No pause mechanism exists
❌ No circuit breaker for emergencies

Acceptance Criteria

• Add pause state to contract storage
• Implement admin-only pause/unpause functions
• Modify all payment functions to check pause state
• Add pause/unpause events

Technical Details

• Add KEY_PAUSED storage key
• Implement require_not_paused() helper function
• Add pause checks to all public functions
• Include proper access controls

Files to Modify

• contracts/payment-router/src/lib.rs

[oche2920]

@oche2920 has applied to work on this issue as part of the Stellar Wave Program's 5th wave.

I'm a software dev, may I take on this issue if it's still available?

ℹ️ Repo Maintainers: To accept this application, review their application or assign @oche2920 to this issue.

[drips-wave]

Congratulations, @oche2920! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on June 2, 2026.

🧑‍💻 @oche2920: Please resolve the issue such that the repo's maintainers have enough time to review your contribution before the due date. You'll earn Points for completing the issue on-time, which will make you eligible for a share of the Stellar Wave Program's reward pool.

Warning

When opening a PR, please link it to this issue to ensure it gets tracked accurately. Points are awarded when this issue is marked as completed by the maintainer.

🤠 Repo maintainers: Please keep an eye on the contributor's progress and review their work before the due date. You can manage this issue, including adjusting its complexity and points, here.

🌊 Happy Wave 🌊

[karanjadavi]

@karanjadavi has applied to work on this issue as part of the Stellar Wave Program's 5th wave.

can i work on this issue ?

ℹ️ Repo Maintainers: To accept this application, review their application or assign @karanjadavi to this issue.