Simplify storage of contract source code

[kroggen]

Removes the CodeUrl field from the "contract" document.

The VerifiedToken field should contain the token symbol

No longer uses the SCAN_CONTRACT_VERIFIED (SCV). It must be replaced by a simpler version, no NFT based.

[kroggen]

Here is the code for the contract to track source-code of old contracts: (replace SCV)

state.var {
  registry = state.map(),
  owner = state.value()
}

function set_code(address, source_code)
  assert(system.getSender() == owner:get(), "permission denied")
  registry[address] = source_code
end

function get_code(address)
  return registry[address]
end

function set_owner(address)
  assert(system.getSender() == owner:get(), "permission denied")
  owner:set(address)
end

function constructor()
  owner:set(system.getCreator())
end

abi.register(set_code, set_owner)
abi.register_view(get_code)

[hayarobi]

Is it safe to invoke panic here? Does any caller catches the panic?

[kroggen]

I don't know. The idea is to make the app to close
What would be the alternative? Maybe retry?

[hayarobi]

Neither do I. You know much more than me about indexer. If panic is propagated to top level of call stack, the process will be terminated. I don't know this is expected behavior or not of indexer.