ADD: main view SCAN button can now import watch-only wallets (closes #2817)

class/deeplink-schema-match.js

@@ -1,4 +1,4 @@
-import { AppStorage, LightningCustodianWallet } from './';
+import { AppStorage, LightningCustodianWallet, WatchOnlyWallet } from './';
 import AsyncStorage from '@react-native-async-storage/async-storage';
 import RNFS from 'react-native-fs';
 import url from 'url';
@@ -178,6 +178,17 @@ class DeeplinkSchemaMatch {
           params: Azteco.getParamsFromUrl(event.url),
         },
       ]);
+    } else if (new WatchOnlyWallet().setSecret(event.url).init().valid()) {
+      completionHandler([
+        'AddWalletRoot',
+        {
+          screen: 'ImportWallet',
+          params: {
+            triggerImport: true,
+            label: event.url,
+          },
+        },
+      ]);
     } else {
       const urlObject = url.parse(event.url, true); // eslint-disable-line node/no-deprecated-api
       (async () => {

class/wallets/watch-only-wallet.js

@@ -56,13 +56,15 @@ export class WatchOnlyWallet extends LegacyWallet {
    * this method creates appropriate HD wallet class, depending on whether we have xpub, ypub or zpub
    * as a property of `this`, and in case such property exists - it recreates it and copies data from old one.
    * this is needed after serialization/save/load/deserialization procedure.
+   *
+   * @return {WatchOnlyWallet} this
    */
   init() {
     let hdWalletInstance;
     if (this.secret.startsWith('xpub')) hdWalletInstance = new HDLegacyP2PKHWallet();
     else if (this.secret.startsWith('ypub')) hdWalletInstance = new HDSegwitP2SHWallet();
     else if (this.secret.startsWith('zpub')) hdWalletInstance = new HDSegwitBech32Wallet();
-    else return;
+    else return this;
     hdWalletInstance._xpub = this.secret;
     if (this._hdWalletInstance) {
       // now, porting all properties from old object to new one
@@ -75,6 +77,8 @@ export class WatchOnlyWallet extends LegacyWallet {
       delete hdWalletInstance._node0;
     }
     this._hdWalletInstance = hdWalletInstance;
+
+    return this;
   }
 
   prepareForSerialization() {

helpers/scan-qr.js

@@ -4,13 +4,14 @@
  *
  * @param navigateFunc {function}
  * @param currentScreenName {string}
+ * @param showFileImportButton {boolean}
  *
  * @return {Promise<string>}
  */
-module.exports = function (navigateFunc, currentScreenName) {
+module.exports = function scanQrHelper(navigateFunc, currentScreenName, showFileImportButton = true) {
   return new Promise(resolve => {
     const params = {};
-    params.showFileImportButton = true;
+    params.showFileImportButton = !!showFileImportButton;
 
     params.onBarScanned = function (data) {
       setTimeout(() => resolve(data.data || data), 1);

screen/send/ScanQRCode.js

@@ -315,17 +315,9 @@ const ScanQRCode = () => {
             testID="scanQrBackdoorOkButton"
             onPress={() => {
               setBackdoorVisible(false);
-              let data;
+              setBackdoorText('');
-              try {
-                data = JSON.parse(backdoorText);
-                // this might be a json string (for convenience - in case there are "\n" in there)
-              } catch (_) {
-                data = backdoorText;
-              } finally {
-                setBackdoorText('');
-              }
 
-              if (data) onBarCodeRead({ data });
+              if (backdoorText) onBarCodeRead({ data: backdoorText });
             }}
           />
         </View>

screen/wallets/import.js

@@ -23,6 +23,7 @@ const WalletsImport = () => {
   const [isToolbarVisibleForAndroid, setIsToolbarVisibleForAndroid] = useState(false);
   const route = useRoute();
   const label = (route.params && route.params.label) || '';
+  const triggerImport = (route.params && route.params.triggerImport) || false;
   const [importText, setImportText] = useState(label);
   const navigation = useNavigation();
   const { colors } = useTheme();
@@ -50,6 +51,11 @@ const WalletsImport = () => {
     };
   }, []);
 
+  useEffect(() => {
+    if (triggerImport) importButtonPressed();
+    // eslint-disable-next-line react-hooks/exhaustive-deps
+  }, []);
+
   const importButtonPressed = () => {
     if (importText.trim().length === 0) {
       return;

screen/wallets/list.js

@@ -31,6 +31,7 @@ import { isCatalyst, isMacCatalina, isTablet } from '../../blue_modules/environm
 import BlueClipboard from '../../blue_modules/clipboard';
 import navigationStyle from '../../components/navigationStyle';
 
+const scanqrHelper = require('../../helpers/scan-qr');
 const A = require('../../blue_modules/analytics');
 const fs = require('../../blue_modules/fs');
 const WalletsListSections = { CAROUSEL: 'CAROUSEL', LOCALTRADER: 'LOCALTRADER', TRANSACTIONS: 'TRANSACTIONS' };
@@ -343,18 +344,12 @@ const WalletsList = () => {
     if (isMacCatalina) {
       fs.showActionSheet({ anchor: walletActionButtonsRef.current }).then(onBarScanned);
     } else {
-      navigate('ScanQRCodeRoot', {
+      scanqrHelper(navigate, routeName, false).then(onBarScanned);
-        screen: 'ScanQRCode',
-        params: {
-          launchedBy: routeName,
-          onBarScanned,
-          showFileImportButton: false,
-        },
-      });
     }
   };
 
   const onBarScanned = value => {
+    if (!value) return;
     DeeplinkSchemaMatch.navigationRouteFor({ url: value }, completionValue => {
       ReactNativeHapticFeedback.trigger('impactLight', { ignoreAndroidSystemSettings: false });
       navigate(...completionValue);
@@ -381,14 +376,7 @@ const WalletsList = () => {
             if (buttonIndex === 1) {
               fs.showImagePickerAndReadImage().then(onBarScanned);
             } else if (buttonIndex === 2) {
-              navigate('ScanQRCodeRoot', {
+              scanqrHelper(navigate, routeName, false).then(onBarScanned);
-                screen: 'ScanQRCode',
-                params: {
-                  launchedBy: routeName,
-                  onBarScanned,
-                  showFileImportButton: false,
-                },
-              });
             } else if (buttonIndex === 3) {
               copyFromClipboard();
             }
@@ -408,15 +396,7 @@ const WalletsList = () => {
         },
         {
           text: loc.wallets.list_long_scan,
-          onPress: () =>
+          onPress: () => scanqrHelper(navigate, routeName, false).then(onBarScanned),
-            navigate('ScanQRCodeRoot', {
-              screen: 'ScanQRCode',
-              params: {
-                launchedBy: routeName,
-                onBarScanned,
-                showFileImportButton: false,
-              },
-            }),
         },
       ];
       if (!isClipboardEmpty) {

tests/unit/deeplink-schema-match.test.js

@@ -202,6 +202,81 @@ describe('unit - DeepLinkSchemaMatch', function () {
           },
         ],
       },
+      {
+        argument: {
+          url: require('fs').readFileSync('./tests/unit/fixtures/skeleton-cobo.txt', 'ascii'),
+        },
+        expected: [
+          'AddWalletRoot',
+          {
+            screen: 'ImportWallet',
+            params: {
+              triggerImport: true,
+              label: require('fs').readFileSync('./tests/unit/fixtures/skeleton-cobo.txt', 'ascii'),
+            },
+          },
+        ],
+      },
+      {
+        argument: {
+          url: require('fs').readFileSync('./tests/unit/fixtures/skeleton-coldcard.txt', 'ascii'),
+        },
+        expected: [
+          'AddWalletRoot',
+          {
+            screen: 'ImportWallet',
+            params: {
+              triggerImport: true,
+              label: require('fs').readFileSync('./tests/unit/fixtures/skeleton-coldcard.txt', 'ascii'),
+            },
+          },
+        ],
+      },
+      {
+        argument: {
+          url: require('fs').readFileSync('./tests/unit/fixtures/skeleton-electrum.txt', 'ascii'),
+        },
+        expected: [
+          'AddWalletRoot',
+          {
+            screen: 'ImportWallet',
+            params: {
+              triggerImport: true,
+              label: require('fs').readFileSync('./tests/unit/fixtures/skeleton-electrum.txt', 'ascii'),
+            },
+          },
+        ],
+      },
+      {
+        argument: {
+          url: require('fs').readFileSync('./tests/unit/fixtures/skeleton-walletdescriptor.txt', 'ascii'),
+        },
+        expected: [
+          'AddWalletRoot',
+          {
+            screen: 'ImportWallet',
+            params: {
+              triggerImport: true,
+              label: require('fs').readFileSync('./tests/unit/fixtures/skeleton-walletdescriptor.txt', 'ascii'),
+            },
+          },
+        ],
+      },
+      {
+        argument: {
+          url: 'zpub6rFDtF1nuXZ9PUL4XzKURh3vJBW6Kj6TUrYL4qPtFNtDXtcTVfiqjQDyrZNwjwzt5HS14qdqo3Co2282Lv3Re6Y5wFZxAVuMEpeygnnDwfx',
+        },
+        expected: [
+          'AddWalletRoot',
+          {
+            screen: 'ImportWallet',
+            params: {
+              triggerImport: true,
+              label: 'zpub6rFDtF1nuXZ9PUL4XzKURh3vJBW6Kj6TUrYL4qPtFNtDXtcTVfiqjQDyrZNwjwzt5HS14qdqo3Co2282Lv3Re6Y5wFZxAVuMEpeygnnDwfx',
+            },
+          },
+        ],
+      },
     ];
 
     const asyncNavigationRouteFor = async function (event) {

tests/unit/fixtures/skeleton-cobo.txt

@@ -0,0 +1 @@
+{"ExtPubKey":"zpub6rcabYFcdr41zyUNRWRyHYs2Sm86E5XV8RjjRzTFYsiCngteeZnkwaF2xuhjmM6kpHjuNpFW42BMhzPmFwXt48e1FhddMB7xidZzN4SF24K","MasterFingerprint":"5271c071","CoboVaultFirmwareVersion":"1.2.4(BTC-Only)"}

tests/unit/fixtures/skeleton-coldcard.txt

@@ -0,0 +1 @@
+{"keystore": {"ckcc_xpub": "xpub661MyMwAqRbcGmUDQVKxmhEESB5xTk8hbsdTSV3Pmhm3HE9Fj3s45R9Y8LwyaQWjXXPytZjuhTKSyCBPeNrB1VVWQq1HCvjbEZ27k44oNmg", "xpub": "zpub6rFDtF1nuXZ9PUL4XzKURh3vJBW6Kj6TUrYL4qPtFNtDXtcTVfiqjQDyrZNwjwzt5HS14qdqo3Co2282Lv3Re6Y5wFZxAVuMEpeygnnDwfx", "label": "Coldcard Import 168DD603", "ckcc_xfp": 64392470, "type": "hardware", "hw_type": "coldcard", "derivation": "m/84'/0'/0'"}, "wallet_type": "standard", "use_encryption": false, "seed_version": 17}

tests/unit/fixtures/skeleton-walletdescriptor.txt

@@ -0,0 +1 @@
+[8cce63f8/84h/0h/0h]zpub6s2RJ9qAEBW8Abhojs6LyDzF7gttcDr6EsR3Umu2aptZBb45e734rGtt4KqsCMmNyR1EEzUU2ugdVYez2VywQvAbBjUSKn8ho4Zk2c5otkk