diff options
Diffstat (limited to 'datafile-app-server/src/main/java/org/onap/dcaegen2/collectors/datafile/ftp/SftpClientSettings.java')
-rw-r--r-- | datafile-app-server/src/main/java/org/onap/dcaegen2/collectors/datafile/ftp/SftpClientSettings.java | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/datafile-app-server/src/main/java/org/onap/dcaegen2/collectors/datafile/ftp/SftpClientSettings.java b/datafile-app-server/src/main/java/org/onap/dcaegen2/collectors/datafile/ftp/SftpClientSettings.java new file mode 100644 index 00000000..8cab4327 --- /dev/null +++ b/datafile-app-server/src/main/java/org/onap/dcaegen2/collectors/datafile/ftp/SftpClientSettings.java @@ -0,0 +1,63 @@ +/*- + * ============LICENSE_START====================================================================== + * Copyright (C) 2020 Nokia. All rights reserved. + * =============================================================================================== + * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file + * except in compliance with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software distributed under the + * License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, + * either express or implied. See the License for the specific language governing permissions + * and limitations under the License. + * ============LICENSE_END======================================================================== + */ + +package org.onap.dcaegen2.collectors.datafile.ftp; + +import java.io.File; +import org.onap.dcaegen2.collectors.datafile.configuration.SftpConfig; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +public class SftpClientSettings { + + private static final Logger logger = LoggerFactory.getLogger(SftpClientSettings.class); + + private final SftpConfig sftpConfig; + + public SftpClientSettings(SftpConfig sftpConfig) { + this.sftpConfig = sftpConfig; + } + + public boolean shouldUseStrictHostChecking() { + boolean strictHostKeyChecking = false; + if (isStrictHostKeyCheckingEnabled()) { + File file = new File(getKnownHostsFilePath()); + strictHostKeyChecking = file.isFile(); + logUsageOfStrictHostCheckingFlag(strictHostKeyChecking, file.getAbsolutePath()); + } else { + logger.info("StrictHostKeyChecking will be disabled."); + } + return strictHostKeyChecking; + } + + public String getKnownHostsFilePath() { + return this.sftpConfig.knownHostsFilePath(); + } + + private boolean isStrictHostKeyCheckingEnabled() { + return Boolean.TRUE.equals(this.sftpConfig.strictHostKeyChecking()); + } + + private void logUsageOfStrictHostCheckingFlag(boolean strictHostKeyChecking, String filePath) { + if (strictHostKeyChecking) { + logger.info("StrictHostKeyChecking will be enabled with KNOW_HOSTS_FILE_PATH [{}].", filePath); + } else { + logger.warn( + "StrictHostKeyChecking is enabled but environment variable KNOW_HOSTS_FILE_PATH is not set or points to not existing file [{}] --> falling back to StrictHostKeyChecking='no'.", + filePath); + } + } +} |