nfc intents

1 files changed, 118 insertions, 61 deletions

diff --git a/android/app/src/main/java/io/coinos/MainActivity.java b/android/app/src/main/java/io/coinos/MainActivity.java
index 7f710952..aaf59abe 100644
--- a/android/app/src/main/java/io/coinos/MainActivity.java
+++ b/android/app/src/main/java/io/coinos/MainActivity.java
@@ -2,80 +2,137 @@ package io.coinos;
 
 import com.getcapacitor.BridgeActivity;
 import com.getcapacitor.Bridge;
-import com.getcapacitor.PluginCall;
-import com.getcapacitor.PluginHandle;
 import android.content.Intent;
 import android.net.Uri;
 import android.os.Bundle;
+import android.os.Parcelable;
 import android.webkit.CookieManager;
 import android.webkit.WebView;
 
+import android.nfc.NdefMessage;
+import android.nfc.NdefRecord;
+import android.nfc.NfcAdapter;
+
+import java.nio.charset.Charset;
+import java.util.Arrays;
+
 public class MainActivity extends BridgeActivity {
-  @Override
-  protected void onCreate(Bundle savedInstanceState) {
-      super.onCreate(savedInstanceState);
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+        WebView webView = bridge.getWebView();
+        CookieManager cookieManager = CookieManager.getInstance();
+        cookieManager.setAcceptCookie(true);
+        webView.getSettings().setJavaScriptEnabled(true);
+        webView.getSettings().setDomStorageEnabled(true);
+
+        handleIntent(getIntent());
+    }
+
+    @Override
+    public void onNewIntent(Intent intent) {
+        super.onNewIntent(intent);
+        setIntent(intent);
+        handleIntent(intent);
+    }
+
+    private void handleIntent(Intent intent) {
+        if (intent == null) return;
 
-      WebView webView = bridge.getWebView();
-      CookieManager cookieManager = CookieManager.getInstance();
-      cookieManager.setAcceptCookie(true);
-      webView.getSettings().setJavaScriptEnabled(true);
-      webView.getSettings().setDomStorageEnabled(true);
+        String action = intent.getAction();
+        Uri data = null;
 
-      Intent intent = getIntent();
-      if (intent != null && Intent.ACTION_VIEW.equals(intent.getAction())) {
-          Uri data = intent.getData();
-          if (data != null) {
-              String url = data.toString();
-              Bridge bridge = getBridge();
-              
-              if (bridge != null) {
-                  String encodedUrl = Uri.encode(url);
-                  String destinationUrl = "https://coinos.io/send/" + encodedUrl;
+        if (Intent.ACTION_VIEW.equals(action)) {
+            data = intent.getData();
+        } else if ("android.nfc.action.NDEF_DISCOVERED".equals(action)) {
+            Parcelable[] rawMsgs = intent.getParcelableArrayExtra(NfcAdapter.EXTRA_NDEF_MESSAGES);
+            if (rawMsgs != null && rawMsgs.length > 0) {
+                NdefMessage ndefMessage = (NdefMessage) rawMsgs[0];
+                for (NdefRecord record : ndefMessage.getRecords()) {
+                    if (record.getTnf() == NdefRecord.TNF_WELL_KNOWN &&
+                        Arrays.equals(record.getType(), NdefRecord.RTD_URI)) {
 
-                  bridge.getWebView().post(() -> {
-                      bridge.getWebView().loadUrl(destinationUrl);
-                  });
-              }
-          }
-      }
-  }
+                        byte[] payload = record.getPayload();
+                        byte prefix = payload[0];
+                        String uriPrefix = resolveUriPrefix(prefix);
+                        String uriBody = new String(Arrays.copyOfRange(payload, 1, payload.length), Charset.forName("UTF-8"));
+                        data = Uri.parse(uriPrefix + uriBody);
+                        break;
+                    }
+                }
+            }
+        }
 
-  @Override
-  public void onNewIntent(Intent intent) {
-      super.onNewIntent(intent);
-      setIntent(intent);
-      if (intent != null && Intent.ACTION_VIEW.equals(intent.getAction())) {
-          Uri data = intent.getData();
-          if (data != null) {
-              String url = data.toString();
+        if (data != null) {
+            String url = data.toString();
+            Bridge bridge = getBridge();
+            if (bridge != null) {
+                String encodedUrl = Uri.encode(url);
+                String destinationUrl = "https://coinos.io/send/" + encodedUrl;
 
-              // Dispatch deep link when app is already open
-              Bridge bridge = getBridge();
-              if (bridge != null) {
-                  String encodedUrl = Uri.encode(url);
-                  String destinationUrl = "https://coinos.io/send/" + encodedUrl;
+                bridge.getWebView().post(() -> {
+                    bridge.getWebView().loadUrl(destinationUrl);
+                });
+            }
+        }
+    }
 
-                  bridge.getWebView().post(() -> {
-                      bridge.getWebView().loadUrl(destinationUrl);
-                  });
-              }
-          }
-      }
-  }
+    private String resolveUriPrefix(byte prefix) {
+        switch (prefix) {
+            case 0x00: return "";
+            case 0x01: return "http://www.";
+            case 0x02: return "https://www.";
+            case 0x03: return "http://";
+            case 0x04: return "https://";
+            case 0x05: return "tel:";
+            case 0x06: return "mailto:";
+            case 0x07: return "ftp://anonymous:anonymous@";
+            case 0x08: return "ftp://ftp.";
+            case 0x09: return "ftps://";
+            case 0x0A: return "sftp://";
+            case 0x0B: return "smb://";
+            case 0x0C: return "nfs://";
+            case 0x0D: return "ftp://";
+            case 0x0E: return "dav://";
+            case 0x0F: return "news:";
+            case 0x10: return "telnet://";
+            case 0x11: return "imap:";
+            case 0x12: return "rtsp://";
+            case 0x13: return "urn:";
+            case 0x14: return "pop:";
+            case 0x15: return "sip:";
+            case 0x16: return "sips:";
+            case 0x17: return "tftp:";
+            case 0x18: return "btspp://";
+            case 0x19: return "btl2cap://";
+            case 0x1A: return "btgoep://";
+            case 0x1B: return "tcpobex://";
+            case 0x1C: return "irdaobex://";
+            case 0x1D: return "file://";
+            case 0x1E: return "urn:epc:id:";
+            case 0x1F: return "urn:epc:tag:";
+            case 0x20: return "urn:epc:pat:";
+            case 0x21: return "urn:epc:raw:";
+            case 0x22: return "urn:epc:";
+            case 0x23: return "urn:nfc:";
+            default: return "";
+        }
+    }
 
-  @Override
-  public void onPause() {
-    super.onPause();
-    CookieManager.getInstance().flush();
-  }
+    @Override
+    public void onPause() {
+        super.onPause();
+        CookieManager.getInstance().flush();
+    }
 
-  @Override
-  public void onBackPressed() {
-      WebView webView = getBridge().getWebView();
-      if (webView.canGoBack()) {
-          webView.goBack();
-      } else {
-          super.onBackPressed(); // Default behavior, which minimizes the app
-      }
-  }
+    @Override
+    public void onBackPressed() {
+        WebView webView = getBridge().getWebView();
+        if (webView.canGoBack()) {
+            webView.goBack();
+        } else {
+            super.onBackPressed();
+        }
+    }
 }