Add MetadataURL to account struct

packages/protocol/contracts/identity/Attestations.sol

@@ -56,6 +56,11 @@ contract Attestations is IAttestations, Ownable, Initializable, UsingRegistry, R
     bytes dataEncryptionKey
   );
 
+  event AccountMetadataURLSet(
+    address indexed account,
+    string metadataURL
+  );
+
   event AccountWalletAddressSet(
     address indexed account,
     address walletAddress
@@ -87,6 +92,9 @@ contract Attestations is IAttestations, Ownable, Initializable, UsingRegistry, R
 
     // The ECDSA public key used to encrypt and decrypt data for this account
     bytes dataEncryptionKey;
+
+    // The URL under which an account adds metadata and claims
+    string metadataURL;
   }
 
   // Stores attestations state for a single (identifier, account address) pair.
@@ -481,6 +489,24 @@ contract Attestations is IAttestations, Ownable, Initializable, UsingRegistry, R
     emit AttestationExpirySecondsSet(_attestationExpirySeconds);
   }
 
+  /**
+   * @notice Setter for the metadata of an account.
+   * @param metadataURL The URL to access the metadata.
+   */
+  function setMetadataURL(string memory metadataURL) external {
+    accounts[msg.sender].metadataURL = metadataURL;
+    emit AccountMetadataURLSet(msg.sender, metadataURL);
+  }
+
+  /**
+   * @notice Getter for the metadata of an account.
+   * @param account The address of the account to get the metadata for.
+   * @return metdataURL The URL to access the metadata.
+   */
+  function getMetadataURL(address account) external view returns (string memory) {
+    return accounts[account].metadataURL;
+  }
+
     /**
    * @notice Setter for the data encryption key and version.
    * @param dataEncryptionKey secp256k1 public key for data encryption. Preferably compressed.

packages/protocol/contracts/identity/interfaces/IAttestations.sol

@@ -16,12 +16,13 @@ interface IAttestations {
 
   // TODO: For some reason the compiler will complain about the next line
   // function setAccountDataEncryptionKey(bytes) external;
+  // function setMetadataURL(string calldata) external;
   function setWalletAddress(address) external;
   function setAccount(bytes calldata, address) external;
 
   function getDataEncryptionKey(address) external view returns (bytes memory);
   function getWalletAddress(address) external view returns (address);
-
+  function getMetadataURL(address) external view returns (string memory);
 
   function getAttestationRequestFee(address) external view returns (uint256);
 

packages/protocol/test/identity/attestations.ts

@@ -53,6 +53,7 @@ contract('Attestations', (accounts: string[]) => {
   let mockValidators: MockValidatorsInstance
   let registry: RegistryInstance
   const provider = new Web3.providers.HttpProvider('http://localhost:8545')
+  const metadataURL = 'https://www.celo.org'
   const web3: Web3 = new Web3(provider)
   const phoneNumber: string = '+18005551212'
   const caller: string = accounts[0]
@@ -773,4 +774,22 @@ contract('Attestations', (accounts: string[]) => {
       assert.lengthOf(total, 0)
     })
   })
+
+  describe('#setMetadataURL', async () => {
+    it('should set the metadataURL', async () => {
+      await attestations.setMetadataURL(metadataURL)
+      const result = await attestations.getMetadataURL(caller)
+      assert.equal(result, metadataURL)
+    })
+
+    it('should emit the AccountMetadataURLSet event', async () => {
+      const response = await attestations.setMetadataURL(metadataURL)
+      assert.lengthOf(response.logs, 1)
+      const event = response.logs[0]
+      assertLogMatches2(event, {
+        event: 'AccountMetadataURLSet',
+        args: { account: caller, metadataURL },
+      })
+    })
+  })
 })