Esempio n. 1
0
  private static String computePackageSignatureHash(PackageInfo packageInfo) {
    String signatureHash = "";

    final Signature[] sigs = packageInfo.signatures;
    try {
      final MessageDigest messageDigest = MessageDigest.getInstance("SHA-1");
      for (Signature s : sigs) {
        messageDigest.update(s.toByteArray());
      }

      signatureHash = StringBuilderUtils.bytesToHexString(messageDigest.digest());
    } catch (NoSuchAlgorithmException e) {
      LogUtils.log(CustomLabelManager.class, Log.WARN, "Unable to create SHA-1 MessageDigest");
    }

    return signatureHash;
  }
Esempio n. 2
0
  /**
   * Creates a {@link Label} and persists it to the label database, and refreshes the label cache.
   *
   * @param resourceName The fully-qualified resource identifier, such as
   *     "com.android.deskclock:id/analog_appwidget", as provided by {@link
   *     AccessibilityNodeInfo#getViewIdResourceName()}
   * @param userLabel The label provided for the node by the user
   */
  public void addLabel(String resourceName, String userLabel) {
    if (!isInitialized()) {
      return;
    }

    final String finalLabel;
    if (userLabel == null) {
      throw new IllegalArgumentException("Attempted to add a label with a null userLabel value");
    } else {
      finalLabel = userLabel.trim();
      if (TextUtils.isEmpty(finalLabel)) {
        throw new IllegalArgumentException(
            "Attempted to add a label with an empty userLabel value");
      }
    }

    Pair<String, String> parsedId = splitResourceName(resourceName);
    if (parsedId == null) {
      LogUtils.log(
          this, Log.WARN, "Attempted to add a label with an invalid or poorly formed view ID.");
      return;
    }

    final PackageInfo packageInfo;
    try {
      packageInfo = mPackageManager.getPackageInfo(parsedId.first, PackageManager.GET_SIGNATURES);
    } catch (NameNotFoundException e) {
      LogUtils.log(this, Log.WARN, "Attempted to add a label for an unknown package.");
      return;
    }

    final String locale = Locale.getDefault().toString();
    final int version = packageInfo.versionCode;
    final long timestamp = System.currentTimeMillis();
    String signatureHash = "";

    final Signature[] sigs = packageInfo.signatures;
    try {
      final MessageDigest messageDigest = MessageDigest.getInstance("SHA-1");
      for (Signature s : sigs) {
        messageDigest.update(s.toByteArray());
      }

      signatureHash = StringBuilderUtils.bytesToHexString(messageDigest.digest());
    } catch (NoSuchAlgorithmException e) {
      LogUtils.log(this, Log.WARN, "Unable to create SHA-1 MessageDigest");
    }

    // For the current implementation, screenshots are disabled
    final String screenshotPath = "";

    final Label label =
        new Label(
            parsedId.first,
            signatureHash,
            parsedId.second,
            finalLabel,
            locale,
            version,
            screenshotPath,
            timestamp);
    final LabelAddRequest request = new LabelAddRequest(label, null);
    final LabelAddTask task = new LabelAddTask();
    task.execute(request);
  }