1 files changed, 223 insertions, 0 deletions
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/QrCodeScanActivity.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/QrCodeScanActivity.java
new file mode 100644
index 000000000..56e3fac62
--- /dev/null
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/QrCodeScanActivity.java
@@ -0,0 +1,223 @@
+/*
+ * Copyright (C) 2014 Dominik Schürmann <dominik@dominikschuermann.de>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package org.sufficientlysecure.keychain.ui;
+
+import android.app.ProgressDialog;
+import android.content.Intent;
+import android.net.Uri;
+import android.os.Bundle;
+import android.os.Message;
+import android.os.Messenger;
+import android.support.v4.app.FragmentActivity;
+import android.widget.Toast;
+
+import com.google.zxing.integration.android.IntentIntegrator;
+import com.google.zxing.integration.android.IntentResult;
+
+import org.sufficientlysecure.keychain.Constants;
+import org.sufficientlysecure.keychain.R;
+import org.sufficientlysecure.keychain.api.OpenKeychainIntents;
+import org.sufficientlysecure.keychain.keyimport.ImportKeysListEntry;
+import org.sufficientlysecure.keychain.operations.results.ImportKeyResult;
+import org.sufficientlysecure.keychain.operations.results.OperationResult;
+import org.sufficientlysecure.keychain.operations.results.SingletonResult;
+import org.sufficientlysecure.keychain.service.KeychainIntentService;
+import org.sufficientlysecure.keychain.service.KeychainIntentServiceHandler;
+import org.sufficientlysecure.keychain.util.IntentIntegratorSupportV4;
+import org.sufficientlysecure.keychain.util.Log;
+import org.sufficientlysecure.keychain.util.Preferences;
+
+import java.util.ArrayList;
+import java.util.Locale;
+
+/**
+ * Proxy activity (just a transparent content view) to scan QR Codes using the Barcode Scanner app
+ */
+public class QrCodeScanActivity extends FragmentActivity {
+
+    public static final String ACTION_QR_CODE_API = OpenKeychainIntents.IMPORT_KEY_FROM_QR_CODE;
+    public static final String ACTION_SCAN_WITH_RESULT = Constants.INTENT_PREFIX + "SCAN_QR_CODE_WITH_RESULT";
+
+    boolean returnResult;
+
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+        // this activity itself has no content view (see manifest)
+
+        handleActions(getIntent());
+    }
+
+    protected void handleActions(Intent intent) {
+        String action = intent.getAction();
+        Uri dataUri = intent.getData();
+        String scheme = intent.getScheme();
+
+        if (scheme != null && scheme.toLowerCase(Locale.ENGLISH).equals(Constants.FINGERPRINT_SCHEME)) {
+            // Scanning a fingerprint directly with Barcode Scanner, thus we already have scanned
+
+            returnResult = false;
+            startCertify(dataUri);
+        } else if (ACTION_SCAN_WITH_RESULT.equals(action)) {
+            // scan using xzing's Barcode Scanner and return result parcel in OpenKeychain
+
+            returnResult = true;
+            new IntentIntegrator(this).initiateScan();
+        } else if (ACTION_QR_CODE_API.equals(action)) {
+            // scan using xzing's Barcode Scanner from outside OpenKeychain
+
+            returnResult = false;
+            new IntentIntegrator(this).initiateScan();
+        } else {
+            Log.e(Constants.TAG, "No valid scheme or action given!");
+            finish();
+        }
+    }
+
+    @Override
+    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
+        if (requestCode == IntentIntegratorSupportV4.REQUEST_CODE) {
+            IntentResult scanResult = IntentIntegratorSupportV4.parseActivityResult(requestCode,
+                    resultCode, data);
+            if (scanResult != null && scanResult.getFormatName() != null) {
+                String scannedContent = scanResult.getContents();
+                Log.d(Constants.TAG, "scannedContent: " + scannedContent);
+
+                startCertify(Uri.parse(scanResult.getContents()));
+            } else {
+                Log.e(Constants.TAG, "scanResult or formatName null! Should not happen!");
+                finish();
+            }
+
+            return;
+        }
+        // if a result has been returned, return it down to other activity
+        if (data != null && data.hasExtra(OperationResult.EXTRA_RESULT)) {
+            returnResult(data);
+        } else {
+            super.onActivityResult(requestCode, resultCode, data);
+        }
+    }
+
+    public void returnResult(Intent data) {
+        if (returnResult) {
+            setResult(RESULT_OK, data);
+            finish();
+        } else {
+            // display last log message but as Toast for calls from outside OpenKeychain
+            OperationResult result = data.getParcelableExtra(OperationResult.EXTRA_RESULT);
+            String str = getString(result.getLog().getLast().mType.getMsgId());
+            Toast.makeText(this, str, Toast.LENGTH_LONG).show();
+            finish();
+        }
+    }
+
+    public void startCertify(Uri dataUri) {
+        // example: openpgp4fpr:73EE2314F65FA92EC2390D3A718C070100012282
+        if (dataUri.getScheme().equals(Constants.FINGERPRINT_SCHEME)) {
+            String fingerprint = dataUri.getEncodedSchemeSpecificPart().toLowerCase(Locale.ENGLISH);
+            importKeys(fingerprint);
+        } else {
+            SingletonResult result = new SingletonResult(
+                    SingletonResult.RESULT_ERROR, OperationResult.LogType.MSG_WRONG_QR_CODE);
+            Intent intent = new Intent();
+            intent.putExtra(SingletonResult.EXTRA_RESULT, result);
+            returnResult(intent);
+        }
+    }
+
+    public void importKeys(final String fingerprint) {
+        // Message is received after importing is done in KeychainIntentService
+        KeychainIntentServiceHandler saveHandler = new KeychainIntentServiceHandler(
+                this,
+                getString(R.string.progress_importing),
+                ProgressDialog.STYLE_HORIZONTAL,
+                true) {
+            public void handleMessage(Message message) {
+                // handle messages by standard KeychainIntentServiceHandler first
+                super.handleMessage(message);
+
+                if (message.arg1 == KeychainIntentServiceHandler.MESSAGE_OKAY) {
+                    // get returned data bundle
+                    Bundle returnData = message.getData();
+                    if (returnData == null) {
+                        finish();
+                        return;
+                    }
+                    final ImportKeyResult result =
+                            returnData.getParcelable(OperationResult.EXTRA_RESULT);
+                    if (result == null) {
+                        Log.e(Constants.TAG, "result == null");
+                        finish();
+                        return;
+                    }
+
+                    if (!result.success()) {
+                        // only return if no success...
+                        Intent data = new Intent();
+                        data.putExtras(returnData);
+                        returnResult(data);
+                        return;
+                    }
+
+                    Intent certifyIntent = new Intent(QrCodeScanActivity.this, MultiCertifyKeyActivity.class);
+                    certifyIntent.putExtra(MultiCertifyKeyActivity.EXTRA_RESULT, result);
+                    certifyIntent.putExtra(MultiCertifyKeyActivity.EXTRA_KEY_IDS, result.getImportedMasterKeyIds());
+                    startActivityForResult(certifyIntent, 0);
+                }
+            }
+        };
+
+        // search config
+        Preferences prefs = Preferences.getPreferences(this);
+        Preferences.CloudSearchPrefs cloudPrefs = new Preferences.CloudSearchPrefs(true, true, prefs.getPreferredKeyserver());
+
+        // Send all information needed to service to query keys in other thread
+        Intent intent = new Intent(this, KeychainIntentService.class);
+
+        intent.setAction(KeychainIntentService.ACTION_DOWNLOAD_AND_IMPORT_KEYS);
+
+        // fill values for this action
+        Bundle data = new Bundle();
+
+        data.putString(KeychainIntentService.DOWNLOAD_KEY_SERVER, cloudPrefs.keyserver);
+
+        final ImportKeysListEntry keyEntry = new ImportKeysListEntry();
+        keyEntry.setFingerprintHex(fingerprint);
+        keyEntry.addOrigin(cloudPrefs.keyserver);
+        ArrayList<ImportKeysListEntry> selectedEntries = new ArrayList<ImportKeysListEntry>();
+        selectedEntries.add(keyEntry);
+
+        data.putParcelableArrayList(KeychainIntentService.DOWNLOAD_KEY_LIST, selectedEntries);
+
+        intent.putExtra(KeychainIntentService.EXTRA_DATA, data);
+
+        // Create a new Messenger for the communication back
+        Messenger messenger = new Messenger(saveHandler);
+        intent.putExtra(KeychainIntentService.EXTRA_MESSENGER, messenger);
+
+        // show progress dialog
+        saveHandler.showProgressDialog(this);
+
+        // start service with intent
+        startService(intent);
+    }
+
+
+}