How to add Sha1 of keystore in Dialog Box?

ewpatton · May 19, 2020, 3:32pm

You will need to add a new API to the UserInfoService that computes the SHA1. You can see an example of how it’s done in the PUNYA sources:

github.com

mit-dig/punya/blob/b5c45433582900e2fbe998a086a926404f1b5ea8/appinventor/appengine/src/com/google/appinventor/server/UserInfoServiceImpl.java#L179


@Override
public void deleteUserFile(String fileName) {
  storageIo.deleteUserFile(userInfoProvider.getUserId(), fileName);
}




  /**
   * Get the SHA1 fingerprint for the user's keystore
   */
  @Override
  public String getUserFingerprintSHA1() {
      final String userId = userInfoProvider.getUserId();
      byte[] keystoreBytes = storageIo.downloadRawUserFile(userId,
              StorageUtil.ANDROID_KEYSTORE_FILENAME);
      BufferedReader br = null;
      try {
          ByteArrayInputStream bais = new ByteArrayInputStream(keystoreBytes);
          KeyStore store = KeyStore.getInstance("jks");
          char[] pass = "android".toCharArray();
          store.load(bais, pass);
          Certificate cert = store.getCertificateChain("androidkey")[0];