Endorsed Providers Contract

[rvagg]

Context: FilOzone/synapse-sdk#540

Summary

Create a simple contract that maintains a list of endorsed provider IDs. This replaces the endorsement certificates approach.

Background

We have a three-tier provider trust model:

1. All providers - Everyone in ServiceProviderRegistry
2. Approved providers - Recorded in FilecoinWarmStorageService
3. Endorsed providers - Small set we store at least one copy with

This contract identifies the endorsed tier.

Details

• Store a list of provider IDs
• Owner-controlled
• Suggested functions:
  • getEndorsedProviders() → uint256[] - returns full list
  • addEndorsed(uint256 providerId) - owner only
  • removeEndorsed(uint256 providerId) - owner only
  • Or just setEndorsed(uint256[] providerIds)?
• Deploy to calibnet and mainnet
• Add to deployment script(s) or make a new one (@rjan90 to provide input on preferred deployment script mechanism)
• Document contract address per network
• Later: Transfer to multisig and test with multisig before GA

Follow-on Synapse work

• Add contract address constant per network, add override address in SynapseOptions for devnet use and other testing
• Add memoised query in StorageManger, fetch once per session, cache result, pass to dependent components
• Update feat: Endorsement Certificates synapse-sdk#443 to use contract data instead of certs

Note: part of the upload() work will be redoing a bunch of this code so the main priority is just to make something provably work.

[wjmelements]

• Add to deployment script(s) or make a new one (@rjan90 to provide input on preferred deployment script mechanism)
• Document contract address per network

See #354