fix: the vote page could not render proposals without signature data

fixes #3380

src/constants/governance.ts

@@ -12,6 +12,8 @@ export const COMMON_CONTRACT_NAMES: Record<number, { [address: string]: string }
     [TIMELOCK_ADDRESS[SupportedChainId.MAINNET]]: 'Timelock',
     [GOVERNANCE_ALPHA_V0_ADDRESSES[SupportedChainId.MAINNET]]: 'Governance (V0)',
     [GOVERNANCE_ALPHA_V1_ADDRESSES[SupportedChainId.MAINNET]]: 'Governance',
+    '0x00000000000C2E074eC69A0dFb2997BA6C7d2e1e': 'ENS Registry',
+    '0x4976fb03C32e5B8cfe2b6cCB31c09Ba78EBaBa41': 'ENS Public Resolver',
   },
 }
 

src/state/governance/hooks.ts

@@ -111,6 +111,12 @@ interface FormattedProposalLog {
   description: string
   details: { target: string; functionSig: string; callData: string }[]
 }
+
+const FOUR_BYTES_DIR: { [sig: string]: string } = {
+  '0x5ef2c7f0': 'setSubnodeRecord(bytes32,bytes32,address,address,uint64)',
+  '0x10f13a8c': 'setText(bytes32,string,string)',
+}
+
 /**
  * Need proposal events to get description data emitted from
  * new proposal event.
@@ -172,8 +178,18 @@ function useFormattedProposalCreatedLogs(
           description,
           details: parsed.targets.map((target: string, i: number) => {
             const signature = parsed.signatures[i]
-            const [name, types] = signature.substr(0, signature.length - 1).split('(')
-            const calldata = parsed.calldatas[i]
+            let calldata = parsed.calldatas[i]
+            let name: string
+            let types: string
+            if (signature === '') {
+              const fourbyte = calldata.slice(0, 10)
+              const sig = FOUR_BYTES_DIR[fourbyte]
+              if (!sig) throw new Error('Missing four byte sig')
+              ;[name, types] = sig.substring(0, sig.length - 1).split('(')
+              calldata = `0x${calldata.slice(10)}`
+            } else {
+              ;[name, types] = signature.substring(0, signature.length - 1).split('(')
+            }
             const decoded = defaultAbiCoder.decode(types.split(','), calldata)
             return {
               target,