feat(multichain): add block explorer format URLs

shared/constants/multichain/networks.ts

@@ -4,20 +4,27 @@ import {
   isBtcMainnetAddress,
   isBtcTestnetAddress,
   isSolanaAddress,
-} from '../../lib/multichain';
+} from '../../lib/multichain/accounts';
+import { MultichainBlockExplorerFormatUrls } from '../../lib/multichain/networks';
 
 export type ProviderConfigWithImageUrl = {
   rpcUrl?: string;
   type: string;
   ticker: string;
   nickname?: string;
-  rpcPrefs?: { blockExplorerUrl?: string; imageUrl?: string };
+  rpcPrefs?: {
+    imageUrl?: string;
+    // Mainly for EVM.
+    blockExplorerUrl?: string;
+  };
   id?: string;
 };
 
 export type MultichainProviderConfig = ProviderConfigWithImageUrl & {
   nickname: string;
   chainId: CaipChainId;
+  // Variant of block explorer URLs for non-EVM.
+  blockExplorerFormatUrls?: MultichainBlockExplorerFormatUrls;
   // NOTE: For now we use a callback to check if the address is compatible with
   // the given network or not
   isAddressCompatible: (address: string) => boolean;
@@ -42,16 +49,31 @@ export const MULTICHAIN_ACCOUNT_TYPE_TO_MAINNET = {
 export const BITCOIN_TOKEN_IMAGE_URL = './images/bitcoin-logo.svg';
 export const SOLANA_TOKEN_IMAGE_URL = './images/solana-logo.svg';
 
-export const MULTICHAIN_NETWORK_BLOCK_EXPLORER_URL_MAP = {
-  [MultichainNetworks.BITCOIN]: 'https://blockstream.info/address',
-  [MultichainNetworks.BITCOIN_TESTNET]:
-    'https://blockstream.info/testnet/address',
+export const MULTICHAIN_NETWORK_BLOCK_EXPLORER_FORMAT_URLS_MAP: Record<
+  CaipChainId,
+  MultichainBlockExplorerFormatUrls
+> = {
+  [MultichainNetworks.BITCOIN]: {
+    url: 'https://blockstream.info',
+    address: 'https://blockstream.info/address/{address}',
+  },
+  [MultichainNetworks.BITCOIN_TESTNET]: {
+    url: 'https://blockstream.info',
+    address: 'https://blockstream.info/testnet/address/{address}',
+  },
 
-  [MultichainNetworks.SOLANA]: 'https://explorer.solana.com/',
-  [MultichainNetworks.SOLANA_DEVNET]:
-    'https://explorer.solana.com/?cluster=devnet',
-  [MultichainNetworks.SOLANA_TESTNET]:
-    'https://explorer.solana.com/?cluster=testnet',
+  [MultichainNetworks.SOLANA]: {
+    url: 'https://explorer.solana.com',
+    address: 'https://explorer.solana.com/{address}',
+  },
+  [MultichainNetworks.SOLANA_DEVNET]: {
+    url: 'https://explorer.solana.com',
+    address: 'https://explorer.solana.com/{address}?cluster=devnet',
+  },
+  [MultichainNetworks.SOLANA_TESTNET]: {
+    url: 'https://explorer.solana.com',
+    address: 'https://explorer.solana.com/{address}?cluster=testnet',
+  },
 } as const;
 
 export const MULTICHAIN_TOKEN_IMAGE_MAP = {
@@ -76,8 +98,14 @@ export const MULTICHAIN_PROVIDER_CONFIGS: Record<
     rpcPrefs: {
       imageUrl: MULTICHAIN_TOKEN_IMAGE_MAP[MultichainNetworks.BITCOIN],
       blockExplorerUrl:
-        MULTICHAIN_NETWORK_BLOCK_EXPLORER_URL_MAP[MultichainNetworks.BITCOIN],
+        MULTICHAIN_NETWORK_BLOCK_EXPLORER_FORMAT_URLS_MAP[
+          MultichainNetworks.BITCOIN
+        ].url,
     },
+    blockExplorerFormatUrls:
+      MULTICHAIN_NETWORK_BLOCK_EXPLORER_FORMAT_URLS_MAP[
+        MultichainNetworks.BITCOIN
+      ],
     isAddressCompatible: isBtcMainnetAddress,
   },
   [MultichainNetworks.BITCOIN_TESTNET]: {
@@ -90,10 +118,14 @@ export const MULTICHAIN_PROVIDER_CONFIGS: Record<
     rpcPrefs: {
       imageUrl: MULTICHAIN_TOKEN_IMAGE_MAP[MultichainNetworks.BITCOIN],
       blockExplorerUrl:
-        MULTICHAIN_NETWORK_BLOCK_EXPLORER_URL_MAP[
+        MULTICHAIN_NETWORK_BLOCK_EXPLORER_FORMAT_URLS_MAP[
           MultichainNetworks.BITCOIN_TESTNET
-        ],
+        ].url,
     },
+    blockExplorerFormatUrls:
+      MULTICHAIN_NETWORK_BLOCK_EXPLORER_FORMAT_URLS_MAP[
+        MultichainNetworks.BITCOIN_TESTNET
+      ],
     isAddressCompatible: isBtcTestnetAddress,
   },
   /**
@@ -109,8 +141,14 @@ export const MULTICHAIN_PROVIDER_CONFIGS: Record<
     rpcPrefs: {
       imageUrl: MULTICHAIN_TOKEN_IMAGE_MAP[MultichainNetworks.SOLANA],
       blockExplorerUrl:
-        MULTICHAIN_NETWORK_BLOCK_EXPLORER_URL_MAP[MultichainNetworks.SOLANA],
+        MULTICHAIN_NETWORK_BLOCK_EXPLORER_FORMAT_URLS_MAP[
+          MultichainNetworks.SOLANA
+        ].url,
     },
+    blockExplorerFormatUrls:
+      MULTICHAIN_NETWORK_BLOCK_EXPLORER_FORMAT_URLS_MAP[
+        MultichainNetworks.SOLANA
+      ],
     isAddressCompatible: isSolanaAddress,
   },
   [MultichainNetworks.SOLANA_DEVNET]: {
@@ -123,10 +161,14 @@ export const MULTICHAIN_PROVIDER_CONFIGS: Record<
     rpcPrefs: {
       imageUrl: MULTICHAIN_TOKEN_IMAGE_MAP[MultichainNetworks.SOLANA],
       blockExplorerUrl:
-        MULTICHAIN_NETWORK_BLOCK_EXPLORER_URL_MAP[
+        MULTICHAIN_NETWORK_BLOCK_EXPLORER_FORMAT_URLS_MAP[
           MultichainNetworks.SOLANA_DEVNET
-        ],
+        ].url,
     },
+    blockExplorerFormatUrls:
+      MULTICHAIN_NETWORK_BLOCK_EXPLORER_FORMAT_URLS_MAP[
+        MultichainNetworks.SOLANA_DEVNET
+      ],
     isAddressCompatible: isSolanaAddress,
   },
   [MultichainNetworks.SOLANA_TESTNET]: {
@@ -139,10 +181,14 @@ export const MULTICHAIN_PROVIDER_CONFIGS: Record<
     rpcPrefs: {
       imageUrl: MULTICHAIN_TOKEN_IMAGE_MAP[MultichainNetworks.SOLANA],
       blockExplorerUrl:
-        MULTICHAIN_NETWORK_BLOCK_EXPLORER_URL_MAP[
+        MULTICHAIN_NETWORK_BLOCK_EXPLORER_FORMAT_URLS_MAP[
           MultichainNetworks.SOLANA_TESTNET
-        ],
+        ].url,
     },
+    blockExplorerFormatUrls:
+      MULTICHAIN_NETWORK_BLOCK_EXPLORER_FORMAT_URLS_MAP[
+        MultichainNetworks.SOLANA_TESTNET
+      ],
     isAddressCompatible: isSolanaAddress,
   },
 };

shared/lib/multichain.test.ts → shared/lib/multichain/accounts.test.ts

@@ -4,7 +4,7 @@ import {
   isBtcMainnetAddress,
   isBtcTestnetAddress,
   isSolanaAddress,
-} from './multichain';
+} from './accounts';
 
 const BTC_MAINNET_ADDRESSES = [
   // P2WPKH

shared/lib/multichain/networks.test.ts

@@ -0,0 +1,26 @@
+import { formatBlockExplorerUrl, formatBlockExplorerAddressUrl, MultichainBlockExplorerFormatUrls } from './networks';
+
+describe('multichain - networks', () => {
+  it('formats a URL', () => {
+    const value = 'something-else';
+
+    expect(formatBlockExplorerUrl(
+      'https://foo.bar/show/{foobar}/1',
+      '{foobar}',
+      value,
+    )).toBe(`https://foo.bar/show/${value}/1`);
+  });
+
+  it('formats a URL for an address', () => {
+    const address = 'bc1qwl8399fz829uqvqly9tcatgrgtwp3udnhxfq4k';
+    const urls: MultichainBlockExplorerFormatUrls = {
+      url: 'https://foo.bar',
+      address: 'https://foo.bar/address/{address}?detail=true',
+    };
+
+    expect(formatBlockExplorerAddressUrl(
+      urls,
+      address,
+    )).toBe(`https://foo.bar/address/${address}?detail=true`);
+  });
+});

shared/lib/multichain/networks.ts

@@ -0,0 +1,59 @@
+/**
+ * Base URL of a block explorer.
+ */
+export type MultichainBlockExplorerUrl =
+  `https://${string}.${string}`;
+
+/**
+ * Format URL of a block explorer for addresses.
+ *
+ * The format URLs can be used to "expand" some strings within the format string. (Similar
+ * to "string interpolation"). The "tags" are being identified with curly-braces.
+ */
+export type MultichainBlockExplorerFormatUrl<Tag extends string> =
+  `https://${string}.${string}/${string}{${Tag}}${string}`;
+
+/**
+ * A group of URL and format URL for block explorers.
+ */
+export type MultichainBlockExplorerFormatUrls = {
+  /**
+   * Base URL of the block explorer.
+   */
+  url: MultichainBlockExplorerUrl;
+
+  /**
+   * Format URL of the block explorer for addresses.
+   */
+  address: MultichainBlockExplorerFormatUrl<'address'>;
+};
+
+/**
+ * Format a URL by replacing a "tag" with a corresponding value.
+ *
+ * @param url - Format URL.
+ * @param tag - Format URL tag.
+ * @param value - The value to expand.
+ * @returns A formatted URL.
+ */
+export function formatBlockExplorerUrl<Tag extends string>(
+  url: MultichainBlockExplorerFormatUrl<Tag>,
+  tag: Tag,
+  value: string,
+) {
+  return url.replaceAll(tag, value);
+}
+
+/**
+ * Format a URL for addresses.
+ *
+ * @param urls - The group of format URLs for a given block explorer.
+ * @param address - The address to create the URL for.
+ * @returns The formatted URL for the given address.
+ */
+export function formatBlockExplorerAddressUrl(
+  urls: MultichainBlockExplorerFormatUrls,
+  address: string,
+) {
+  return formatBlockExplorerUrl(urls.address, '{address}', address);
+}

test/jest/mocks.ts

@@ -22,7 +22,7 @@ import {
 } from '../../ui/ducks/send';
 import { MetaMaskReduxState } from '../../ui/store/store';
 import mockState from '../data/mock-state.json';
-import { isBtcMainnetAddress } from '../../shared/lib/multichain';
+import { isBtcMainnetAddress } from '../../shared/lib/multichain/accounts';
 
 export type MockState = typeof mockState;
 

ui/components/app/modals/nickname-popovers/nickname-popovers.component.test.tsx

@@ -5,14 +5,16 @@ import { renderWithProvider } from '../../../../../test/jest';
 import configureStore from '../../../../store/store';
 import mockState from '../../../../../test/data/mock-state.json';
 import {
-  MULTICHAIN_NETWORK_BLOCK_EXPLORER_URL_MAP,
+  MULTICHAIN_NETWORK_BLOCK_EXPLORER_FORMAT_URLS_MAP,
+  MULTICHAIN_PROVIDER_CONFIGS,
   MultichainNetworks,
 } from '../../../../../shared/constants/multichain/networks';
 import { createMockInternalAccount } from '../../../../../test/jest/mocks';
 // TODO: Remove restricted import
 // eslint-disable-next-line import/no-restricted-paths
 import { normalizeSafeAddress } from '../../../../../app/scripts/lib/multichain/address';
 import { mockNetworkState } from '../../../../../test/stub/networks';
+import { formatBlockExplorerAddressUrl, formatBlockExplorerUrl } from '../../../../../shared/lib/multichain/networks';
 import NicknamePopover from './nickname-popovers.component';
 
 const mockAccount = createMockInternalAccount({
@@ -88,9 +90,12 @@ describe('NicknamePopover', () => {
 
   it('opens non-EVM block explorer', () => {
     global.platform = { openTab: jest.fn(), closeCurrentWindow: jest.fn() };
-    const expectedExplorerUrl = `${
-      MULTICHAIN_NETWORK_BLOCK_EXPLORER_URL_MAP[MultichainNetworks.BITCOIN]
-    }/${normalizeSafeAddress(mockNonEvmAccount.address)}`;
+    const expectedExplorerUrl = formatBlockExplorerAddressUrl(
+      MULTICHAIN_NETWORK_BLOCK_EXPLORER_FORMAT_URLS_MAP[
+        MultichainNetworks.BITCOIN
+      ],
+      mockNonEvmAccount.address,
+    );
 
     const { getByText } = render({
       props: { address: mockNonEvmAccount.address },

ui/components/app/transaction-list/transaction-list.test.js

@@ -11,9 +11,10 @@ import {
   MetaMetricsEventName,
 } from '../../../../shared/constants/metametrics';
 import {
-  MULTICHAIN_NETWORK_BLOCK_EXPLORER_URL_MAP,
+  MULTICHAIN_NETWORK_BLOCK_EXPLORER_FORMAT_URLS_MAP,
   MultichainNetworks,
 } from '../../../../shared/constants/multichain/networks';
+import { formatBlockExplorerAddressUrl } from '../../../../shared/lib/multichain/networks';
 import TransactionList from './transaction-list.component';
 
 const defaultState = {
@@ -96,9 +97,13 @@ describe('TransactionList', () => {
     });
     expect(viewOnExplorerBtn).toBeInTheDocument();
 
-    const blockExplorerDomain = new URL(
-      MULTICHAIN_NETWORK_BLOCK_EXPLORER_URL_MAP[MultichainNetworks.BITCOIN],
-    ).host;
+    const blockExplorerUrl = formatBlockExplorerAddressUrl(
+      MULTICHAIN_NETWORK_BLOCK_EXPLORER_FORMAT_URLS_MAP[
+        MultichainNetworks.BITCOIN
+      ],
+      btcState.metamask.internalAccounts.selectedAccount.address,
+    );
+    const blockExplorerDomain = new URL(blockExplorerUrl).host;
     fireEvent.click(viewOnExplorerBtn);
     expect(mockTrackEvent).toHaveBeenCalledWith({
       event: MetaMetricsEventName.ExternalLinkClicked,

ui/components/multichain/menu-items/view-explorer-menu-item.test.tsx

@@ -5,10 +5,11 @@ import configureStore from '../../../store/store';
 import mockState from '../../../../test/data/mock-state.json';
 import { createMockInternalAccount } from '../../../../test/jest/mocks';
 import {
-  MULTICHAIN_NETWORK_BLOCK_EXPLORER_URL_MAP,
+  MULTICHAIN_NETWORK_BLOCK_EXPLORER_FORMAT_URLS_MAP,
   MultichainNetworks,
 } from '../../../../shared/constants/multichain/networks';
 import { ViewExplorerMenuItem } from '.';
+import { formatBlockExplorerAddressUrl } from '../../../../shared/lib/multichain/networks';
 
 const mockAccount = createMockInternalAccount({
   name: 'Account 1',
@@ -52,9 +53,12 @@ describe('ViewExplorerMenuItem', () => {
   });
 
   it('renders "View on explorer" for non-EVM account', () => {
-    const expectedExplorerUrl = `${
-      MULTICHAIN_NETWORK_BLOCK_EXPLORER_URL_MAP[MultichainNetworks.BITCOIN]
-    }/${mockNonEvmAccount.address}`;
+    const expectedExplorerUrl = formatBlockExplorerAddressUrl(
+      MULTICHAIN_NETWORK_BLOCK_EXPLORER_FORMAT_URLS_MAP[
+        MultichainNetworks.BITCOIN
+      ],
+      mockNonEvmAccount.address,
+    );
     const expectedExplorerUrlHost = new URL(expectedExplorerUrl).host;
     global.platform = { openTab: jest.fn(), closeCurrentWindow: jest.fn() };
 

ui/components/ui/jazzicon/jazzicon.component.tsx

@@ -4,7 +4,7 @@ import { KnownCaipNamespace, stringToBytes } from '@metamask/utils';
 import iconFactoryGenerator, {
   IconFactory,
 } from '../../../helpers/utils/icon-factory';
-import { getCaipNamespaceFromAddress } from '../../../../shared/lib/multichain';
+import { getCaipNamespaceFromAddress } from '../../../../shared/lib/multichain/accounts';
 
 /**
  * Generates a seed for Jazzicon based on the provided address.

ui/helpers/utils/multichain/blockExplorer.ts

@@ -4,6 +4,8 @@ import { MultichainNetwork } from '../../../selectors/multichain';
 // TODO: Remove restricted import
 // eslint-disable-next-line import/no-restricted-paths
 import { normalizeSafeAddress } from '../../../../app/scripts/lib/multichain/address';
+import { MultichainProviderConfig } from '../../../../shared/constants/multichain/networks';
+import { formatBlockExplorerAddressUrl } from '../../../../shared/lib/multichain/networks';
 
 export const getMultichainBlockExplorerUrl = (
   network: MultichainNetwork,
@@ -24,6 +26,12 @@ export const getMultichainAccountUrl = (
     );
   }
 
-  const multichainExplorerUrl = getMultichainBlockExplorerUrl(network);
-  return multichainExplorerUrl ? `${multichainExplorerUrl}/${address}` : '';
+  // We're in a non-EVM context, so we assume we can use format URLs instead.
+  const { blockExplorerFormatUrls } =
+    network.network as MultichainProviderConfig;
+  if (blockExplorerFormatUrls) {
+    return formatBlockExplorerAddressUrl(blockExplorerFormatUrls, address);
+  }
+
+  return '';
 };

ui/selectors/accounts.ts

@@ -8,7 +8,7 @@ import { AccountsControllerState } from '@metamask/accounts-controller';
 import {
   isBtcMainnetAddress,
   isBtcTestnetAddress,
-} from '../../shared/lib/multichain';
+} from '../../shared/lib/multichain/accounts';
 
 export type AccountsState = {
   metamask: AccountsControllerState;