From 2d7c37d379ae48fa3ff464032ad4cb1759b1dc31 Mon Sep 17 00:00:00 2001 From: Matthew Wong Date: Fri, 31 Jul 2015 09:00:06 -0400 Subject: Add per-app settings page --- .../zeapo/pwdstore/autofill/AutofillService.java | 254 +++++++++++++++++++++ 1 file changed, 254 insertions(+) create mode 100644 app/src/main/java/com/zeapo/pwdstore/autofill/AutofillService.java (limited to 'app/src/main/java/com/zeapo/pwdstore/autofill/AutofillService.java') diff --git a/app/src/main/java/com/zeapo/pwdstore/autofill/AutofillService.java b/app/src/main/java/com/zeapo/pwdstore/autofill/AutofillService.java new file mode 100644 index 00000000..6188ef6d --- /dev/null +++ b/app/src/main/java/com/zeapo/pwdstore/autofill/AutofillService.java @@ -0,0 +1,254 @@ +package com.zeapo.pwdstore.autofill; + +import android.accessibilityservice.AccessibilityService; +import android.app.PendingIntent; +import android.content.ClipData; +import android.content.ClipboardManager; +import android.content.Context; +import android.content.DialogInterface; +import android.content.Intent; +import android.content.SharedPreferences; +import android.content.pm.ApplicationInfo; +import android.content.pm.PackageManager; +import android.os.Build; +import android.os.Bundle; +import android.preference.PreferenceManager; +import android.support.v7.app.AlertDialog; +import android.util.Log; +import android.view.WindowManager; +import android.view.accessibility.AccessibilityEvent; +import android.view.accessibility.AccessibilityNodeInfo; +import android.widget.Toast; + +import com.zeapo.pwdstore.R; +import com.zeapo.pwdstore.UserPreference; +import com.zeapo.pwdstore.utils.PasswordItem; +import com.zeapo.pwdstore.utils.PasswordRepository; + +import org.apache.commons.io.FileUtils; +import org.openintents.openpgp.OpenPgpError; +import org.openintents.openpgp.util.OpenPgpApi; +import org.openintents.openpgp.util.OpenPgpServiceConnection; + +import java.io.ByteArrayOutputStream; +import java.io.File; +import java.io.IOException; +import java.io.InputStream; +import java.io.UnsupportedEncodingException; +import java.util.ArrayList; + +public class AutofillService extends AccessibilityService { + private OpenPgpServiceConnection serviceConnection; + private SharedPreferences settings; + private AccessibilityNodeInfo info; // the original source of the event (the edittext field) + private ArrayList items; // password choices + private AlertDialog dialog; + private static boolean unlockOK = false; // if openkeychain user interaction was successful + private CharSequence packageName; + private boolean ignoreActionFocus = false; + + public final class Constants { + public static final String TAG = "Keychain"; + } + + public static void setUnlockOK() { unlockOK = true; } + + @Override + protected void onServiceConnected() { + super.onServiceConnected(); + serviceConnection = new OpenPgpServiceConnection(AutofillService.this, "org.sufficientlysecure.keychain"); + serviceConnection.bindToService(); + settings = PreferenceManager.getDefaultSharedPreferences(this); + } + + @Override + public void onAccessibilityEvent(AccessibilityEvent event) { + // if returning to the source app from a successful AutofillActivity + if (event.getEventType() == AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED + && event.getPackageName().equals(packageName) && unlockOK) { + decryptAndVerify(); + } + if (!event.isPassword() + || Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN_MR2 + || event.getPackageName().equals("org.sufficientlysecure.keychain")) { + if (!(event.getEventType() == AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED + && event.getPackageName().toString().contains("com.android.inputmethod")) + && dialog != null && dialog.isShowing()) { + dialog.dismiss(); + } + return; + } + if (dialog != null && dialog.isShowing()) { + dialog.dismiss(); + } + // ignore the ACTION_FOCUS from decryptAndVerify + if (ignoreActionFocus) { + ignoreActionFocus = false; + return; + } + info = event.getSource(); + PackageManager packageManager = getPackageManager(); + ApplicationInfo applicationInfo; + try { + applicationInfo = packageManager.getApplicationInfo(event.getPackageName().toString(), 0); + } catch (PackageManager.NameNotFoundException e) { + applicationInfo = null; + } + String appName = (applicationInfo != null ? packageManager.getApplicationLabel(applicationInfo) : "").toString(); + items = recursiveFilter(appName, null); + if (items.isEmpty()) { + return; + } + + if (dialog == null) { + AlertDialog.Builder builder = new AlertDialog.Builder(this, R.style.Theme_AppCompat_Dialog); + builder.setNegativeButton("Cancel", null); + builder.setPositiveButton("Fill", new DialogInterface.OnClickListener() { + @Override + public void onClick(DialogInterface dialog, int which) { + decryptAndVerify(); + } + }); + builder.setNeutralButton("Match", new DialogInterface.OnClickListener() { + @Override + public void onClick(DialogInterface dialog, int which) { + + } + }); + dialog = builder.create(); + dialog.setIcon(R.drawable.ic_launcher); + dialog.getWindow().setType(WindowManager.LayoutParams.TYPE_SYSTEM_ALERT); + dialog.getWindow().addFlags(WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE); + dialog.getWindow().clearFlags(WindowManager.LayoutParams.FLAG_DIM_BEHIND); + } + dialog.setTitle(items.get(0).getName()); + dialog.show(); + dialog.getWindow().setLayout(WindowManager.LayoutParams.WRAP_CONTENT, WindowManager.LayoutParams.WRAP_CONTENT); + } + + private ArrayList recursiveFilter(String filter, File dir) { + ArrayList items = new ArrayList<>(); + if (!PasswordRepository.isInitialized()) { + initialize(); + } + ArrayList passwordItems = dir == null ? + PasswordRepository.getPasswords() : + PasswordRepository.getPasswords(dir); + for (PasswordItem item : passwordItems) { + if (item.getType() == PasswordItem.TYPE_CATEGORY) { + recursiveFilter(filter, item.getFile()); + } + if (item.toString().toLowerCase().contains(filter.toLowerCase())) { + items.add(item); + } + } + return items; + } + + // just like PasswordRepository.initialize(). + private void initialize() { + File dir = null; + SharedPreferences settings = PreferenceManager.getDefaultSharedPreferences(getApplicationContext()); + + if (settings.getBoolean("git_external", false)) { + if (settings.getString("git_external_repo", null) != null) { + dir = new File(settings.getString("git_external_repo", null)); + } + } else { + dir = new File(getFilesDir() + "/store"); + } + // temp for debug + if (dir == null) { + Intent intent = new Intent(this, UserPreference.class); + intent.putExtra("operation", "git_external"); + startActivity(intent); + return; + } + + // uninitialize the repo if the dir does not exist or is absolutely empty + if (!dir.exists() || !dir.isDirectory() || FileUtils.listFiles(dir, null, false).isEmpty()) { + settings.edit().putBoolean("repository_initialized", false).apply(); + } + + if (!PasswordRepository.getPasswords(dir).isEmpty()) { + settings.edit().putBoolean("repository_initialized", true).apply(); + } + + // create the repository static variable in PasswordRepository + PasswordRepository.getRepository(new File(dir.getAbsolutePath() + "/.git")); + } + + @Override + public void onInterrupt() { + + } + + public void decryptAndVerify() { + unlockOK = false; + packageName = info.getPackageName(); + Intent data = new Intent(); + data.setAction(OpenPgpApi.ACTION_DECRYPT_VERIFY); + InputStream is = null; + try { + is = FileUtils.openInputStream(items.get(0).getFile()); + } catch (IOException e) { + e.printStackTrace(); + } + ByteArrayOutputStream os = new ByteArrayOutputStream(); + + OpenPgpApi api = new OpenPgpApi(AutofillService.this, serviceConnection.getService()); + Intent result = api.executeApi(data, is, os); + switch (result.getIntExtra(OpenPgpApi.RESULT_CODE, OpenPgpApi.RESULT_CODE_ERROR)) { + case OpenPgpApi.RESULT_CODE_SUCCESS: { + try { + String[] passContent = os.toString("UTF-8").split("\n"); + // if the user focused on something else, take focus back + // but this will open another dialog...hack to ignore this + ignoreActionFocus = info.performAction(AccessibilityNodeInfo.ACTION_FOCUS); + if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) { + Bundle args = new Bundle(); + args.putCharSequence(AccessibilityNodeInfo.ACTION_ARGUMENT_SET_TEXT_CHARSEQUENCE, + passContent[0]); + info.performAction(AccessibilityNodeInfo.ACTION_SET_TEXT, args); + } else { + ClipboardManager clipboard = (ClipboardManager) getSystemService(Context.CLIPBOARD_SERVICE); + ClipData clip = ClipData.newPlainText("autofill_pm", passContent[0]); + clipboard.setPrimaryClip(clip); + info.performAction(AccessibilityNodeInfo.ACTION_PASTE); + clip = ClipData.newPlainText("autofill_pm", "MyPasswordIsDaBest!"); + clipboard.setPrimaryClip(clip); + if (settings.getBoolean("clear_clipboard_20x", false)) { + for (int i = 0; i < 19; i++) { + clip = ClipData.newPlainText(String.valueOf(i), String.valueOf(i)); + clipboard.setPrimaryClip(clip); + } + } + } + } catch (UnsupportedEncodingException e) { + Log.e(Constants.TAG, "UnsupportedEncodingException", e); + } + break; + } + case OpenPgpApi.RESULT_CODE_USER_INTERACTION_REQUIRED: { + Log.i("PgpHandler", "RESULT_CODE_USER_INTERACTION_REQUIRED"); + PendingIntent pi = result.getParcelableExtra(OpenPgpApi.RESULT_INTENT); + // need to start a blank activity to call startIntentSenderForResult + Intent intent = new Intent(AutofillService.this, AutofillActivity.class); + intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK + | Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS); + intent.putExtra("pending_intent", pi); + startActivity(intent); + break; + } + case OpenPgpApi.RESULT_CODE_ERROR: { + OpenPgpError error = result.getParcelableExtra(OpenPgpApi.RESULT_ERROR); + Toast.makeText(AutofillService.this, + "Error from OpenKeyChain : " + error.getMessage(), + Toast.LENGTH_LONG).show(); + Log.e(Constants.TAG, "onError getErrorId:" + error.getErrorId()); + Log.e(Constants.TAG, "onError getMessage:" + error.getMessage()); + break; + } + } + } +} -- cgit v1.2.3