From 822128c4c6f58e4f856c2217fe7ffbca7c495a20 Mon Sep 17 00:00:00 2001
From: pokkst <pokkst@protonmail.com>
Date: Fri, 16 Sep 2022 23:51:14 -0500
Subject: [PATCH] Add support for launching app from Monero URI

---
 app/src/main/AndroidManifest.xml              |  8 +++
 .../com/m2049r/xmrwallet/MainActivity.java    | 22 ++++++++
 .../dialog/SendBottomSheetDialog.java         | 36 ++++++-------
 .../xmrwallet/fragment/home/HomeFragment.java |  3 ++
 .../com/m2049r/xmrwallet/util/UriData.java    | 54 +++++++++++++++++++
 5 files changed, 102 insertions(+), 21 deletions(-)
 create mode 100644 app/src/main/java/com/m2049r/xmrwallet/util/UriData.java

diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index e0ea990..fb29478 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -24,6 +24,14 @@
 
                 <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
+            <intent-filter>
+                <action android:name="android.intent.action.VIEW" />
+
+                <category android:name="android.intent.category.DEFAULT" />
+                <category android:name="android.intent.category.BROWSABLE" />
+
+                <data android:scheme="monero" />
+            </intent-filter>
         </activity>
         <activity
             android:name="com.journeyapps.barcodescanner.CaptureActivity"
diff --git a/app/src/main/java/com/m2049r/xmrwallet/MainActivity.java b/app/src/main/java/com/m2049r/xmrwallet/MainActivity.java
index 34e2e71..cfc482d 100644
--- a/app/src/main/java/com/m2049r/xmrwallet/MainActivity.java
+++ b/app/src/main/java/com/m2049r/xmrwallet/MainActivity.java
@@ -1,5 +1,7 @@
 package com.m2049r.xmrwallet;
 
+import android.content.Intent;
+import android.net.Uri;
 import android.os.Bundle;
 import android.os.PersistableBundle;
 import android.widget.Toast;
@@ -11,6 +13,7 @@ import androidx.fragment.app.FragmentManager;
 import androidx.navigation.fragment.NavHostFragment;
 
 import com.m2049r.xmrwallet.fragment.dialog.PasswordBottomSheetDialog;
+import com.m2049r.xmrwallet.fragment.dialog.SendBottomSheetDialog;
 import com.m2049r.xmrwallet.livedata.SingleLiveEvent;
 import com.m2049r.xmrwallet.model.Wallet;
 import com.m2049r.xmrwallet.model.WalletManager;
@@ -22,6 +25,7 @@ import com.m2049r.xmrwallet.service.MoneroHandlerThread;
 import com.m2049r.xmrwallet.service.PrefService;
 import com.m2049r.xmrwallet.service.TxService;
 import com.m2049r.xmrwallet.util.Constants;
+import com.m2049r.xmrwallet.util.UriData;
 
 import java.io.File;
 
@@ -33,6 +37,9 @@ public class MainActivity extends AppCompatActivity implements MoneroHandlerThre
     private HistoryService historyService = null;
     private BlockchainService blockchainService = null;
 
+    private boolean proceedToSend = false;
+    private UriData uriData = null;
+
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
@@ -48,6 +55,15 @@ public class MainActivity extends AppCompatActivity implements MoneroHandlerThre
                 passwordDialog.listener = this;
                 passwordDialog.show(getSupportFragmentManager(), "password_dialog");
             }
+
+            Intent intent = getIntent();
+            Uri uri = intent.getData();
+            if(uri != null) {
+                uriData = UriData.parse(uri.toString());
+                if (uriData != null) {
+                    proceedToSend = true;
+                }
+            }
         } else {
             navigate(R.id.onboarding_fragment);
         }
@@ -101,6 +117,12 @@ public class MainActivity extends AppCompatActivity implements MoneroHandlerThre
         File walletFile = new File(getApplicationInfo().dataDir, Constants.WALLET_NAME);
         init(walletFile, password);
         restartEvents.call();
+
+        if(proceedToSend) {
+            SendBottomSheetDialog sendDialog = new SendBottomSheetDialog();
+            sendDialog.uriData = uriData;
+            sendDialog.show(getSupportFragmentManager(), null);
+        }
     }
 
     @Override
diff --git a/app/src/main/java/com/m2049r/xmrwallet/fragment/dialog/SendBottomSheetDialog.java b/app/src/main/java/com/m2049r/xmrwallet/fragment/dialog/SendBottomSheetDialog.java
index e312cc0..cf45154 100644
--- a/app/src/main/java/com/m2049r/xmrwallet/fragment/dialog/SendBottomSheetDialog.java
+++ b/app/src/main/java/com/m2049r/xmrwallet/fragment/dialog/SendBottomSheetDialog.java
@@ -31,6 +31,7 @@ import com.m2049r.xmrwallet.service.BalanceService;
 import com.m2049r.xmrwallet.service.TxService;
 import com.m2049r.xmrwallet.util.Constants;
 import com.m2049r.xmrwallet.util.Helper;
+import com.m2049r.xmrwallet.util.UriData;
 
 import java.util.HashMap;
 import java.util.List;
@@ -65,6 +66,8 @@ public class SendBottomSheetDialog extends BottomSheetDialogFragment {
     private ImageButton pasteAddressImageButton;
     private ImageButton scanAddressImageButton;
 
+    public UriData uriData = null;
+
     @Override
     public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
         return inflater.inflate(R.layout.send_bottom_sheet_dialog, null);
@@ -85,6 +88,13 @@ public class SendBottomSheetDialog extends BottomSheetDialogFragment {
         addressTextView = view.findViewById(R.id.address_pending_textview);
         amountTextView = view.findViewById(R.id.amount_pending_textview);
 
+        if (uriData != null) {
+            addressEditText.setText(uriData.getAddress());
+            if(uriData.hasAmount()) {
+                amountEditText.setText(uriData.getAmount());
+            }
+        }
+
         pasteAddressImageButton.setOnClickListener(view1 -> {
             Context ctx = getContext();
             if (ctx != null) {
@@ -236,27 +246,11 @@ public class SendBottomSheetDialog extends BottomSheetDialogFragment {
     }
 
     private void pasteAddress(String address) {
-        HashMap<String, String> params = new HashMap<>();
-        String[] uriParts = address.replace(Constants.URI_PREFIX, "").split("\\?");
-        String finalAddress = uriParts[0];
-        String queryParams = "";
-        if(uriParts.length > 1) {
-            queryParams = uriParts[1];
-            String[] queryParts = queryParams.split("&");
-            for (String param : queryParts) {
-                String[] paramParts = param.split("=");
-                String variable = paramParts[0];
-                String value = paramParts[1];
-                params.put(variable, value);
-            }
-        }
-        boolean isValid = Wallet.isAddressValid(finalAddress);
-        if (isValid) {
-            addressEditText.setText(finalAddress);
-            if(!params.isEmpty()) {
-                if(params.containsKey(Constants.URI_ARG_AMOUNT)) {
-                    amountEditText.setText(params.get(Constants.URI_ARG_AMOUNT));
-                }
+        UriData uriData = UriData.parse(address);
+        if (uriData != null) {
+            addressEditText.setText(uriData.getAddress());
+            if(uriData.hasAmount()) {
+                amountEditText.setText(uriData.getAmount());
             }
         } else {
             Toast.makeText(getActivity(), getString(R.string.send_address_invalid), Toast.LENGTH_SHORT).show();
diff --git a/app/src/main/java/com/m2049r/xmrwallet/fragment/home/HomeFragment.java b/app/src/main/java/com/m2049r/xmrwallet/fragment/home/HomeFragment.java
index 08f5a4a..cc322bb 100644
--- a/app/src/main/java/com/m2049r/xmrwallet/fragment/home/HomeFragment.java
+++ b/app/src/main/java/com/m2049r/xmrwallet/fragment/home/HomeFragment.java
@@ -1,5 +1,7 @@
 package com.m2049r.xmrwallet.fragment.home;
 
+import android.content.Intent;
+import android.net.Uri;
 import android.os.Bundle;
 import android.view.LayoutInflater;
 import android.view.View;
@@ -30,6 +32,7 @@ import com.m2049r.xmrwallet.model.WalletManager;
 import com.m2049r.xmrwallet.service.BalanceService;
 import com.m2049r.xmrwallet.service.BlockchainService;
 import com.m2049r.xmrwallet.service.HistoryService;
+import com.m2049r.xmrwallet.util.UriData;
 
 import java.util.Collections;
 
diff --git a/app/src/main/java/com/m2049r/xmrwallet/util/UriData.java b/app/src/main/java/com/m2049r/xmrwallet/util/UriData.java
new file mode 100644
index 0000000..60fd2be
--- /dev/null
+++ b/app/src/main/java/com/m2049r/xmrwallet/util/UriData.java
@@ -0,0 +1,54 @@
+package com.m2049r.xmrwallet.util;
+
+import com.m2049r.xmrwallet.model.Wallet;
+
+import java.util.HashMap;
+
+public class UriData {
+    private final String address;
+    private final HashMap<String, String> params;
+
+    public UriData(String address, HashMap<String, String> params) {
+        this.address = address;
+        this.params = params;
+    }
+
+    public HashMap<String, String> getParams() {
+        return params;
+    }
+
+    public String getAddress() {
+        return address;
+    }
+
+    public String getAmount() {
+        return params.get(Constants.URI_ARG_AMOUNT);
+    }
+
+    public boolean hasAmount() {
+        return params.containsKey(Constants.URI_ARG_AMOUNT);
+    }
+
+    public static UriData parse(String uri) {
+        HashMap<String, String> params = new HashMap<>();
+        String[] uriParts = uri.replace(Constants.URI_PREFIX, "").split("\\?");
+        String finalAddress = uriParts[0];
+        String queryParams = "";
+        if(uriParts.length > 1) {
+            queryParams = uriParts[1];
+            String[] queryParts = queryParams.split("&");
+            for (String param : queryParts) {
+                String[] paramParts = param.split("=");
+                String variable = paramParts[0];
+                String value = paramParts[1];
+                params.put(variable, value);
+            }
+        }
+        boolean valid = Wallet.isAddressValid(finalAddress);
+        if(valid) {
+            return new UriData(finalAddress, params);
+        } else {
+            return null;
+        }
+    }
+}