Allow incoming signature requests from intents (#32)

* Add url scheme and linking

* Pass account to sign request page

* Provide functionality for accepting or rejecting requests

* Load account state before handling url

* Refactor code

* Make intent work when app is cleared from recents

* Fix bug to populate data from intents

* Fix bug to update data on subsequent requests

* Pass correct network to sign messages from cosmos account

* Fix bug to populate data for incoming intent

* Allow spaces in url

* Bad signature page

* Review changes

* Change page heading

* Use correct regex

* Clean up code

* Use https in url

* Set state properly

---------

Co-authored-by: Adw8 <adwait@deepstacksoft.com>

utils/accounts.ts

@@ -38,10 +38,12 @@ const createWallet = async (): Promise<WalletDetails> => {
     const cosmosAddress = (await getCosmosAccounts(mnemonic, "0'/0/0")).data
       .address;
 
-    const ethAccountInfo = `${"0'/0/0"},${ethNode.privateKey},${ethNode.publicKey
-      },${ethAddress}`;
-    const cosmosAccountInfo = `${"0'/0/0"},${cosmosNode.privateKey},${cosmosNode.publicKey
-      },${cosmosAddress}`;
+    const ethAccountInfo = `${"0'/0/0"},${ethNode.privateKey},${
+      ethNode.publicKey
+    },${ethAddress}`;
+    const cosmosAccountInfo = `${"0'/0/0"},${cosmosNode.privateKey},${
+      cosmosNode.publicKey
+    },${cosmosAddress}`;
 
     await Promise.all([
       setInternetCredentials(
@@ -184,6 +186,42 @@ const retrieveAccounts = async (): Promise<{
   return { ethLoadedAccounts, cosmosLoadedAccounts };
 };
 
+const retrieveSingleAccount = async (network: string, address: string) => {
+  let loadedAccounts;
+
+  switch (network) {
+    case 'eth':
+      const ethServer = await getInternetCredentials('eth:globalCounter');
+      const ethCounter = ethServer && ethServer.password;
+
+      if (ethCounter) {
+        loadedAccounts = await retrieveAccountsForNetwork(network, ethCounter);
+      }
+      break;
+
+    case 'cosmos':
+      const cosmosServer = await getInternetCredentials('cosmos:globalCounter');
+      const cosmosCounter = cosmosServer && cosmosServer.password;
+
+      if (cosmosCounter) {
+        loadedAccounts = await retrieveAccountsForNetwork(
+          network,
+          cosmosCounter,
+        );
+      }
+      break;
+
+    default:
+      break;
+  }
+
+  if (loadedAccounts) {
+    return loadedAccounts.find(account => account.address === address);
+  }
+
+  return undefined;
+};
+
 const resetWallet = async () => {
   try {
     await Promise.all([
@@ -206,5 +244,6 @@ export {
   addAccount,
   addAccountFromHDPath,
   retrieveAccounts,
+  retrieveSingleAccount,
   resetWallet,
 };