How can I safely expose message channels between packages without failing security review?
Answer
To safely expose message channels between packages without failing the security review:
1. **Primary Recommendation**: Ensure the message channel is configured with `isExposed` set to `false` unless absolutely necessary.
2. **If Exposure is Required**:
- Ensure that the fields being communicated are non-sensitive
- Follow secure coding practices to avoid exposing sensitive data
- Clearly document the intended functionality in your submission
3. **Maintain Functionality While Meeting Requirements**:
- Remove the exposed Lightning Message Channel from the managed package
- Allow customers to create their own exposed Lightning Message Channels for integration purposes
- Provide an unlocked package to facilitate deployment for customers
- Ensure all references to the exposed channel are removed and replaced with secure alternatives
This approach minimizes security risks while maintaining functionality and helps ensure security review compliance.
How can I safely expose message channels between packages without failing security review?
Recommended Answer Update
To safely expose message channels between packages without failing the security review:
1. **Primary Recommendation**: Ensure the message channel is configured with `isExposed` set to `false` unless absolutely necessary.
2. **If Exposure is Required**:
- Ensure that the fields being communicated are non-sensitive
- Follow secure coding practices to avoid exposing sensitive data
- Clearly document the intended functionality in your submission
3. **Maintain Functionality While Meeting Requirements**:
- Remove the exposed Lightning Message Channel from the managed package
- Allow customers to create their own exposed Lightning Message Channels for integration purposes
- Provide an unlocked package to facilitate deployment for customers
- Ensure all references to the exposed channel are removed and replaced with secure alternatives
This approach minimizes security risks while maintaining functionality and helps ensure security review compliance.
Reasoning
The FAQ content is accurate and well-structured, covering the key security considerations for Lightning Message Channels. No significant changes were needed as the existing content effectively addresses the security concerns around exposing message channels. The rule AvoidLmcIsExposedTrue directly applies to this FAQ because it specifically flags Lightning Message Channels with `isExposed` set to `true` as a security concern (severity 2). The FAQ's primary recommendation to keep `isExposed` set to `false` aligns perfectly with this rule's purpose, and the FAQ's guidance on what to do when exposure is required provides practical alternatives that comply with security review requirements. The FAQ content about removing exposed channels from managed packages and providing alternative deployment methods directly addresses the security issues that the AvoidLmcIsExposedTrue rule is designed to detect.