def _read_password_from_properties(properties):
   database_password = DEFAULT_PASSWORD
   password_file = get_value_from_properties(properties, JDBC_PASSWORD_PROPERTY, "")
   if password_file:
     if is_alias_string(password_file):
       database_password = decrypt_password_for_alias(properties, JDBC_RCA_PASSWORD_ALIAS)
     else:
       if os.path.isabs(password_file) and os.path.exists(password_file):
         with open(password_file, 'r') as file:
           database_password = file.read()
   return database_password
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 def _read_password_from_properties(properties, options):
   database_password = DEFAULT_PASSWORD
   password_file = get_value_from_properties(properties, JDBC_PASSWORD_PROPERTY, "")
   if password_file:
     if is_alias_string(password_file):
       database_password = decrypt_password_for_alias(properties, JDBC_RCA_PASSWORD_ALIAS, options)
     else:
       if os.path.isabs(password_file) and os.path.exists(password_file):
         with open(password_file, 'r') as file:
           database_password = file.read()
   return database_password
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def setup_master_key():
  if not is_root():
    err = 'Ambari-server setup should be run with ' \
          'root-level privileges'
    raise FatalException(4, err)

  properties = get_ambari_properties()
  if properties == -1:
    raise FatalException(1, "Failed to read properties file.")

  db_windows_auth_prop = properties.get_property(JDBC_USE_INTEGRATED_AUTH_PROPERTY)
  db_sql_auth = False if db_windows_auth_prop and db_windows_auth_prop.lower() == 'true' else True
  db_password = properties.get_property(JDBC_PASSWORD_PROPERTY)
  # Encrypt passwords cannot be called before setup
  if db_sql_auth and not db_password:
    print 'Please call "setup" before "encrypt-passwords". Exiting...'
    return 1

  # Check configuration for location of master key
  isSecure = get_is_secure(properties)
  (isPersisted, masterKeyFile) = get_is_persisted(properties)

  # Read clear text DB password from file
  if db_sql_auth and not is_alias_string(db_password) and os.path.isfile(db_password):
    with open(db_password, 'r') as passwdfile:
      db_password = passwdfile.read()

  ldap_password = properties.get_property(LDAP_MGR_PASSWORD_PROPERTY)
  if ldap_password:
    # Read clear text LDAP password from file
    if not is_alias_string(ldap_password) and os.path.isfile(ldap_password):
      with open(ldap_password, 'r') as passwdfile:
        ldap_password = passwdfile.read()

  ts_password = properties.get_property(SSL_TRUSTSTORE_PASSWORD_PROPERTY)
  resetKey = False
  masterKey = None

  if isSecure:
    print "Password encryption is enabled."
    resetKey = get_YN_input("Do you want to reset Master Key? [y/n] (n): ", False)

  # For encrypting of only unencrypted passwords without resetting the key ask
  # for master key if not persisted.
  if isSecure and not isPersisted and not resetKey:
    print "Master Key not persisted."
    masterKey = get_original_master_key(properties)
  pass

  # Make sure both passwords are clear-text if master key is lost
  if resetKey:
    if not isPersisted:
      print "Master Key not persisted."
      masterKey = get_original_master_key(properties)
      # Unable get the right master key or skipped question <enter>
      if not masterKey:
        print "To disable encryption, do the following:"
        print "- Edit " + find_properties_file() + \
              " and set " + SECURITY_IS_ENCRYPTION_ENABLED + " = " + "false."
        err = "{0} is already encrypted. Please call {1} to store unencrypted" \
              " password and call 'encrypt-passwords' again."
        if db_sql_auth and db_password and is_alias_string(db_password):
          print err.format('- Database password', "'" + SETUP_ACTION + "'")
        if ldap_password and is_alias_string(ldap_password):
          print err.format('- LDAP manager password', "'" + LDAP_SETUP_ACTION + "'")
        if ts_password and is_alias_string(ts_password):
          print err.format('TrustStore password', "'" + LDAP_SETUP_ACTION + "'")

        return 1
      pass
    pass
  pass

  # Read back any encrypted passwords
  if db_sql_auth  and db_password and is_alias_string(db_password):
    db_password = read_passwd_for_alias(JDBC_RCA_PASSWORD_ALIAS, masterKey)
  if ldap_password and is_alias_string(ldap_password):
    ldap_password = read_passwd_for_alias(LDAP_MGR_PASSWORD_ALIAS, masterKey)
  if ts_password and is_alias_string(ts_password):
    ts_password = read_passwd_for_alias(SSL_TRUSTSTORE_PASSWORD_ALIAS, masterKey)
  # Read master key, if non-secure or reset is true
  if resetKey or not isSecure:
    masterKey = read_master_key(resetKey)
    persist = get_YN_input("Do you want to persist master key. If you choose " \
                           "not to persist, you need to provide the Master " \
                           "Key while starting the ambari server as an env " \
                           "variable named " + SECURITY_KEY_ENV_VAR_NAME + \
                           " or the start will prompt for the master key."
                           " Persist [y/n] (y)? ", True)
    if persist:
      save_master_key(masterKey, get_master_key_location(properties) + os.sep +
                      SECURITY_MASTER_KEY_FILENAME, persist)
    elif not persist and masterKeyFile:
      try:
        os.remove(masterKeyFile)
        print_info_msg("Deleting master key file at location: " + str(
          masterKeyFile))
      except Exception, e:
        print 'ERROR: Could not remove master key file. %s' % e
    # Blow up the credential store made with previous key, if any
    store_file = get_credential_store_location(properties)
    if os.path.exists(store_file):
      try:
        os.remove(store_file)
      except:
        print_warning_msg("Failed to remove credential store file.")
      pass
    pass
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      except Exception, e:
        print 'ERROR: Could not remove master key file. %s' % e
    # Blow up the credential store made with previous key, if any
    store_file = get_credential_store_location(properties)
    if os.path.exists(store_file):
      try:
        os.remove(store_file)
      except:
        print_warning_msg("Failed to remove credential store file.")
      pass
    pass
  pass

  propertyMap = {SECURITY_IS_ENCRYPTION_ENABLED: 'true'}
  # Encrypt only un-encrypted passwords
  if db_password and not is_alias_string(db_password):
    retCode = save_passwd_for_alias(JDBC_RCA_PASSWORD_ALIAS, db_password, masterKey)
    if retCode != 0:
      print 'Failed to save secure database password.'
    else:
      propertyMap[JDBC_PASSWORD_PROPERTY] = get_alias_string(JDBC_RCA_PASSWORD_ALIAS)
      remove_password_file(JDBC_PASSWORD_FILENAME)
      if properties.get_property(JDBC_RCA_PASSWORD_FILE_PROPERTY):
        propertyMap[JDBC_RCA_PASSWORD_FILE_PROPERTY] = get_alias_string(JDBC_RCA_PASSWORD_ALIAS)
  pass

  if ldap_password and not is_alias_string(ldap_password):
    retCode = save_passwd_for_alias(LDAP_MGR_PASSWORD_ALIAS, ldap_password, masterKey)
    if retCode != 0:
      print 'Failed to save secure LDAP password.'
    else: