fix: use device auth for web push deregistration

[owenpearson]

resolves #1999

Summary by CodeRabbit

• New Features

  • The push notification deactivation method can now be used without specifying a callback, providing more flexibility for users.

• Bug Fixes

  • Improved authentication handling during push notification deregistration for enhanced reliability.

[coderabbitai]

Walkthrough

The changes update the Push interface by making the deregisterCallback parameter in the deactivate method optional, allowing the method to be called with or without a callback. Additionally, the deregister method in the ActivationStateMachine class now retrieves authentication details using the local device's getAuthDetails method, instead of constructing headers and parameters directly. This improves how authentication is handled during push deregistration, particularly affecting web push deactivation flows.

Changes

File(s)	Change Summary
ably.d.ts	Made deregisterCallback parameter in Push.deactivate method optional in the type declaration.
src/plugins/push/pushactivation.ts	Modified ActivationStateMachine.deregister to use device.getAuthDetails for authentication.

Sequence Diagram(s)

sequenceDiagram
    participant Client
    participant Device
    participant ActivationStateMachine
    participant RESTResource

    Client->>ActivationStateMachine: deregister()
    ActivationStateMachine->>Device: getAuthDetails(client, headers, params)
    Device-->>ActivationStateMachine: authDetails (headers, params)
    ActivationStateMachine->>RESTResource: delete(url, authDetails.headers, authDetails.params)
    RESTResource-->>ActivationStateMachine: response
    ActivationStateMachine-->>Client: handle result

Loading

Assessment against linked issues

Objective	Addressed	Explanation
Allow browser deactivation without requiring push-admin capability (#1999)	✅

Poem

A hop and a skip, with code made neat,
Now push deactivates—no admin feat!
Auth flows through the device, so light,
Deregister works, both day and night.
Optional callbacks, a gentle touch,
This bunny approves the changes—so much!
🐇✨

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📥 Commits

Reviewing files that changed from the base of the PR and between 257c4e6 and dc59ccb.

📒 Files selected for processing (2)

• ably.d.ts (1 hunks)
• src/plugins/push/pushactivation.ts (1 hunks)

🧰 Additional context used

🧬 Code Graph Analysis (1)

ably.d.ts (1)

src/plugins/push/pushactivation.ts (1)

• DeregisterCallback (23-23)

⏰ Context from checks skipped due to timeout of 90000ms (6)

• GitHub Check: test-browser (webkit)
• GitHub Check: test-node (20.x)
• GitHub Check: test-node (18.x)
• GitHub Check: test-browser (firefox)
• GitHub Check: test-node (16.x)
• GitHub Check: test-browser (chromium)

🔇 Additional comments (2)

ably.d.ts (1)

2644-2644: Good change: Makes deregisterCallback parameter optional

This change enhances flexibility in the Push interface by making the deregisterCallback parameter optional. This allows clients to call the deactivate method without providing a custom deregistration callback, falling back to the default implementation.

src/plugins/push/pushactivation.ts (1)

269-279: Improved authentication handling for push deregistration

Now using the device's getAuthDetails method to retrieve the proper authentication details rather than directly using the local headers and params. This change properly aligns with the updated deactivate method signature in the interface and ensures more robust authentication during push deregistration.

The modification correctly retrieves up-to-date authentication details from the device context, which is especially important for web push deactivation flows where authentication details might change between registration and deregistration.

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[ttypic]

LGTM