Collector authentication enhancement

Collector authentication enhancement

Change-Id: I03a05cb83dd8c498fb218e82e9b3958348fbb4ac
Issue-ID: DCAEGEN2-1101
Signed-off-by: Zlatko Murgoski <zlatko.murgoski@nokia.com>

18 files changed, 470 insertions, 144 deletions

diff --git a/src/main/java/org/onap/dcae/ApplicationSettings.java b/src/main/java/org/onap/dcae/ApplicationSettings.java
index 7a2bff97..c4f2c063 100644
--- a/src/main/java/org/onap/dcae/ApplicationSettings.java
+++ b/src/main/java/org/onap/dcae/ApplicationSettings.java
@@ -43,6 +43,7 @@ import javax.annotation.Nullable;
 import org.apache.commons.configuration.ConfigurationException;
 import org.apache.commons.configuration.PropertiesConfiguration;
 import org.json.JSONObject;
+import org.onap.dcae.common.configuration.AuthMethodType;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -119,10 +120,6 @@ public class ApplicationSettings {
         return properties.getInt("collector.schema.checkflag", -1) > 0;
     }
 
-    public boolean authorizationEnabled() {
-        return properties.getInt("header.authflag", 0) > 0;
-    }
-
     public JsonSchema jsonSchema(String version) {
         return loadedJsonSchemas.get(version)
                 .orElse(loadedJsonSchemas.get(FALLBACK_VES_VERSION))
@@ -175,10 +172,6 @@ public class ApplicationSettings {
         return prependWithUserDirOnRelative(properties.getString("collector.keystore.file.location", "etc/keystore"));
     }
 
-    public boolean clientTlsAuthenticationEnabled() {
-        return httpsEnabled() && properties.getInt("collector.service.secure.clientauth", 0) > 0;
-    }
-
     public String truststorePasswordFileLocation() {
         return prependWithUserDirOnRelative(properties.getString("collector.truststore.passwordfile", "etc/trustpasswordfile"));
     }
@@ -195,6 +188,10 @@ public class ApplicationSettings {
         return prependWithUserDirOnRelative(properties.getString("collector.dmaapfile", "etc/DmaapConfig.json"));
     }
 
+    public String authMethod(){
+        return properties.getString("auth.method", AuthMethodType.NO_AUTH.value());
+    }
+
     public Map<String, String[]> dMaaPStreamsMapping() {
         String streamIdsProperty = properties.getString("collector.dmaap.streamid", null);
         if (streamIdsProperty == null) {
diff --git a/src/main/java/org/onap/dcae/common/SSLContextCreator.java b/src/main/java/org/onap/dcae/common/SSLContextCreator.java
index e636f4c0..898e5d55 100644
--- a/src/main/java/org/onap/dcae/common/SSLContextCreator.java
+++ b/src/main/java/org/onap/dcae/common/SSLContextCreator.java
@@ -22,6 +22,7 @@ package org.onap.dcae.common;
 
 import java.nio.file.Path;
 import org.springframework.boot.web.server.Ssl;
+import org.springframework.boot.web.server.Ssl.ClientAuth;
 
 public class SSLContextCreator {
     private final String keyStorePassword;
@@ -31,6 +32,7 @@ public class SSLContextCreator {
     private Path trustStoreFile;
     private String trustStorePassword;
     private boolean hasTlsClientAuthentication = false;
+    private ClientAuth clientAuth;
 
     public static SSLContextCreator create(final Path keyStoreFile, final String certAlias, final String password) {
         return new SSLContextCreator(keyStoreFile, certAlias, password);
@@ -42,8 +44,9 @@ public class SSLContextCreator {
         this.keyStorePassword = password;
     }
 
-    public SSLContextCreator withTlsClientAuthentication(final Path trustStoreFile, final String password) {
-        hasTlsClientAuthentication = true;
+    public SSLContextCreator withTlsClientAuthentication(final Path trustStoreFile, final String password, final ClientAuth clientAuth) {
+        this.clientAuth = clientAuth;
+        this.hasTlsClientAuthentication = true;
         this.trustStoreFile = trustStoreFile;
         this.trustStorePassword = password;
 
@@ -62,7 +65,7 @@ public class SSLContextCreator {
 
         ssl.setTrustStore(trustStore);
         ssl.setTrustStorePassword(trustStorePassword);
-        ssl.setClientAuth(Ssl.ClientAuth.NEED);
+        ssl.setClientAuth(clientAuth);
     }
 
     public Ssl build() {
@@ -74,7 +77,6 @@ public class SSLContextCreator {
         if (hasTlsClientAuthentication) {
             configureTrustStore(ssl);
         }
-
         return ssl;
     }
 }
\ No newline at end of file
diff --git a/src/main/java/org/onap/dcae/common/configuration/AuthMethod.java b/src/main/java/org/onap/dcae/common/configuration/AuthMethod.java
new file mode 100644
index 00000000..21614856
--- /dev/null
+++ b/src/main/java/org/onap/dcae/common/configuration/AuthMethod.java
@@ -0,0 +1,26 @@
+/*
+ * ============LICENSE_START=======================================================
+ * PROJECT
+ * ================================================================================
+ * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
+ * Copyright (C) 2018 Nokia. All rights reserved.s
+ * ================================================================================
+ * 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.dcae.common.configuration;
+
+public interface AuthMethod {
+  void configure();
+}
diff --git a/src/main/java/org/onap/dcae/common/configuration/AuthMethodType.java b/src/main/java/org/onap/dcae/common/configuration/AuthMethodType.java
new file mode 100644
index 00000000..7eb1b414
--- /dev/null
+++ b/src/main/java/org/onap/dcae/common/configuration/AuthMethodType.java
@@ -0,0 +1,37 @@
+/*
+ * ============LICENSE_START=======================================================
+ * PROJECT
+ * ================================================================================
+ * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
+ * Copyright (C) 2018 Nokia. All rights reserved.s
+ * ================================================================================
+ * 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.dcae.common.configuration;
+
+public enum AuthMethodType {
+
+  NO_AUTH("noAuth"),CERT_ONLY("certOnly"),CERT_BASIC_AUTH("certBasicAuth"),BASIC_AUTH("basicAuth");
+
+  private final String value;
+
+  AuthMethodType(String value) {
+    this.value = value;
+  }
+
+  public String value() {
+    return value;
+  }
+}
diff --git a/src/main/java/org/onap/dcae/common/configuration/BasicAuth.java b/src/main/java/org/onap/dcae/common/configuration/BasicAuth.java
new file mode 100644
index 00000000..c3730512
--- /dev/null
+++ b/src/main/java/org/onap/dcae/common/configuration/BasicAuth.java
@@ -0,0 +1,48 @@
+/*
+ * ============LICENSE_START=======================================================
+ * PROJECT
+ * ================================================================================
+ * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
+ * Copyright (C) 2018 Nokia. All rights reserved.s
+ * ================================================================================
+ * 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.dcae.common.configuration;
+
+import org.onap.dcae.ApplicationSettings;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.boot.web.servlet.server.ConfigurableServletWebServerFactory;
+
+public class BasicAuth implements AuthMethod {
+
+  private static final Logger log = LoggerFactory.getLogger(BasicAuth.class);
+  private final ConfigurableServletWebServerFactory container;
+  private final ApplicationSettings properties;
+
+  public BasicAuth(ConfigurableServletWebServerFactory container, ApplicationSettings properties) {
+    this.container = container;
+    this.properties = properties;
+  }
+
+  @Override
+  public void configure() {
+    SslContextCreator sslContextCreator = new SslContextCreator(properties);
+    container.setPort(properties.httpsPort());
+    container.setSsl(sslContextCreator.simpleHttpsContext());
+    log.info(String.format("Application work in %s mode on %s port.",
+        properties.authMethod(), properties.httpsPort()));
+  }
+}
diff --git a/src/main/java/org/onap/dcae/common/configuration/CertAuth.java b/src/main/java/org/onap/dcae/common/configuration/CertAuth.java
new file mode 100644
index 00000000..3c4fb62c
--- /dev/null
+++ b/src/main/java/org/onap/dcae/common/configuration/CertAuth.java
@@ -0,0 +1,49 @@
+/*
+ * ============LICENSE_START=======================================================
+ * PROJECT
+ * ================================================================================
+ * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
+ * Copyright (C) 2018 Nokia. All rights reserved.s
+ * ================================================================================
+ * 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.dcae.common.configuration;
+
+import org.onap.dcae.ApplicationSettings;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.boot.web.server.Ssl.ClientAuth;
+import org.springframework.boot.web.servlet.server.ConfigurableServletWebServerFactory;
+
+public class CertAuth implements AuthMethod {
+
+  private static final Logger log = LoggerFactory.getLogger(CertAuth.class);
+  private final ConfigurableServletWebServerFactory container;
+  private final ApplicationSettings properties;
+
+  public CertAuth(ConfigurableServletWebServerFactory container, ApplicationSettings properties) {
+    this.container = container;
+    this.properties = properties;
+  }
+
+  @Override
+  public void configure() {
+    SslContextCreator sslContextCreator = new SslContextCreator(properties);
+    container.setSsl(sslContextCreator.httpsContextWithTlsAuthentication(ClientAuth.NEED));
+    container.setPort(properties.httpsPort());
+    log.info(String.format("Application work in %s mode on %s port.",
+        properties.authMethod(), properties.httpsPort()));
+  }
+}
diff --git a/src/main/java/org/onap/dcae/common/configuration/CertBasicAuth.java b/src/main/java/org/onap/dcae/common/configuration/CertBasicAuth.java
new file mode 100644
index 00000000..f756b47d
--- /dev/null
+++ b/src/main/java/org/onap/dcae/common/configuration/CertBasicAuth.java
@@ -0,0 +1,50 @@
+/*
+ * ============LICENSE_START=======================================================
+ * PROJECT
+ * ================================================================================
+ * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
+ * Copyright (C) 2018 Nokia. All rights reserved.s
+ * ================================================================================
+ * 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.dcae.common.configuration;
+
+import org.onap.dcae.ApplicationSettings;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.boot.web.server.Ssl.ClientAuth;
+import org.springframework.boot.web.servlet.server.ConfigurableServletWebServerFactory;
+
+public class CertBasicAuth implements AuthMethod{
+
+  private static final Logger log = LoggerFactory.getLogger(CertAuth.class);
+  private final ConfigurableServletWebServerFactory container;
+  private final ApplicationSettings properties;
+
+  public CertBasicAuth(ConfigurableServletWebServerFactory container, ApplicationSettings properties) {
+    this.container = container;
+    this.properties = properties;
+  }
+
+  @Override
+  public void configure() {
+    SslContextCreator sslContextCreator = new SslContextCreator(properties);
+    container.setPort(properties.httpsPort());
+    container.setSsl(sslContextCreator.httpsContextWithTlsAuthentication(ClientAuth.WANT));
+    log.info(String.format("Application work in %s mode on %s port.",
+        properties.authMethod(), properties.httpsPort()));
+  }
+}
+
diff --git a/src/main/java/org/onap/dcae/common/configuration/NoAuth.java b/src/main/java/org/onap/dcae/common/configuration/NoAuth.java
new file mode 100644
index 00000000..a64749c0
--- /dev/null
+++ b/src/main/java/org/onap/dcae/common/configuration/NoAuth.java
@@ -0,0 +1,62 @@
+/*
+ * ============LICENSE_START=======================================================
+ * PROJECT
+ * ================================================================================
+ * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
+ * Copyright (C) 2018 Nokia. All rights reserved.s
+ * ================================================================================
+ * 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.dcae.common.configuration;
+
+import org.onap.dcae.ApplicationSettings;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.boot.web.servlet.server.ConfigurableServletWebServerFactory;
+
+public class NoAuth implements AuthMethod {
+
+  private static final Logger log = LoggerFactory.getLogger(NoAuth.class);
+
+  private final ConfigurableServletWebServerFactory container;
+  private final ApplicationSettings properties;
+
+  public NoAuth(ConfigurableServletWebServerFactory container, ApplicationSettings properties) {
+    this.container = container;
+    this.properties = properties;
+  }
+
+  @Override
+  public void configure() {
+    if (validateAuthMethod()){
+      container.setPort(properties.httpsPort());
+      logContainerConfiguration(properties.httpsPort());
+    }
+    else {
+      container.setPort(properties.httpPort());
+      logContainerConfiguration(properties.httpPort());
+    }
+  }
+
+  private boolean validateAuthMethod() {
+    return properties.authMethod().equalsIgnoreCase(AuthMethodType.BASIC_AUTH.value())
+        || properties.authMethod().equalsIgnoreCase(AuthMethodType.CERT_ONLY.value())
+        || properties.authMethod().equalsIgnoreCase(AuthMethodType.CERT_BASIC_AUTH.value());
+  }
+
+  private void logContainerConfiguration(int port) {
+    log.info(String.format("Application work in %s mode on %s port.", properties.authMethod(), port));
+  }
+}
diff --git a/src/main/java/org/onap/dcae/common/configuration/SslContextCreator.java b/src/main/java/org/onap/dcae/common/configuration/SslContextCreator.java
new file mode 100644
index 00000000..f0e470be
--- /dev/null
+++ b/src/main/java/org/onap/dcae/common/configuration/SslContextCreator.java
@@ -0,0 +1,116 @@
+/*
+ * ============LICENSE_START=======================================================
+ * PROJECT
+ * ================================================================================
+ * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
+ * Copyright (C) 2018 Nokia. All rights reserved.s
+ * ================================================================================
+ * 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.dcae.common.configuration;
+
+import static java.nio.file.Files.readAllBytes;
+
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.security.GeneralSecurityException;
+import java.security.KeyStore;
+import java.security.KeyStoreException;
+import org.onap.dcae.ApplicationException;
+import org.onap.dcae.ApplicationSettings;
+import org.onap.dcae.common.SSLContextCreator;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.boot.web.server.Ssl;
+import org.springframework.boot.web.server.Ssl.ClientAuth;
+
+public class SslContextCreator {
+
+  private static final Logger log = LoggerFactory.getLogger(CertAuth.class);
+  private final ApplicationSettings properties;
+
+  public SslContextCreator(ApplicationSettings properties) {
+    this.properties = properties;
+  }
+
+  public Ssl httpsContextWithTlsAuthentication(ClientAuth clientAuth) {
+    final SSLContextCreator sslContextCreator = simpleHttpsContextBuilder();
+
+    log.info("Enabling TLS client authorization");
+
+    final Path trustStore = toAbsolutePath(properties.truststoreFileLocation());
+    log.info("Using trustStore path: " + trustStore);
+
+    final Path trustPasswordFileLocation = toAbsolutePath(properties.truststorePasswordFileLocation());
+    final String trustStorePassword = getKeyStorePassword(trustPasswordFileLocation);
+    log.info("Using trustStore password from: " + trustPasswordFileLocation);
+
+    return sslContextCreator.withTlsClientAuthentication(trustStore, trustStorePassword, clientAuth).build();
+  }
+
+  public Ssl simpleHttpsContext(){
+    return simpleHttpsContextBuilder().build();
+  }
+
+  private SSLContextCreator simpleHttpsContextBuilder() {
+    log.info("Enabling SSL");
+
+    final Path keyStorePath = toAbsolutePath(properties.keystoreFileLocation());
+    log.info("Using keyStore path: " + keyStorePath);
+
+    final Path keyStorePasswordLocation = toAbsolutePath(properties.keystorePasswordFileLocation());
+    final String keyStorePassword = getKeyStorePassword(keyStorePasswordLocation);
+    log.info("Using keyStore password from: " + keyStorePasswordLocation);
+    return SSLContextCreator.create(keyStorePath, getKeyStoreAlias(keyStorePath, keyStorePassword), keyStorePassword);
+  }
+
+  private String getKeyStoreAlias(Path keyStorePath, String keyStorePassword) {
+    KeyStore keyStore = getKeyStore();
+    try(InputStream keyStoreData = new FileInputStream(keyStorePath.toString())){
+      keyStore.load(keyStoreData, keyStorePassword.toCharArray());
+      String alias = keyStore.aliases().nextElement();
+      log.info("Actual key store alias is: " + alias);
+      return alias;
+    } catch (IOException | GeneralSecurityException ex) {
+      log.error("Cannot load Key Store alias cause: " + ex);
+      throw new ApplicationException(ex);
+    }
+  }
+
+  private KeyStore getKeyStore() {
+    try {
+      return KeyStore.getInstance(KeyStore.getDefaultType());
+    } catch (KeyStoreException ex) {
+      log.error("Cannot create Key Store instance cause: " + ex);
+      throw new ApplicationException(ex);
+    }
+  }
+
+  private Path toAbsolutePath(final String path) {
+    return Paths.get(path).toAbsolutePath();
+  }
+
+  private String getKeyStorePassword(final Path location) {
+    try {
+      return new String(readAllBytes(location));
+    } catch (IOException e) {
+      log.error("Could not read keystore password from: '" + location + "'.", e);
+      throw new ApplicationException(e);
+    }
+  }
+}
diff --git a/src/main/java/org/onap/dcae/restapi/ApiAuthInterceptor.java b/src/main/java/org/onap/dcae/restapi/ApiAuthInterceptor.java
index 3b76ae46..e2ac74c7 100644
--- a/src/main/java/org/onap/dcae/restapi/ApiAuthInterceptor.java
+++ b/src/main/java/org/onap/dcae/restapi/ApiAuthInterceptor.java
@@ -25,6 +25,7 @@ import java.util.Base64;
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
 import org.onap.dcae.ApplicationSettings;
+import org.onap.dcae.common.configuration.AuthMethodType;
 import org.onap.dcaegen2.services.sdk.security.CryptPassword;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -34,37 +35,51 @@ final class ApiAuthInterceptor extends HandlerInterceptorAdapter {
 
     private static final Logger LOG = LoggerFactory.getLogger(ApiAuthInterceptor.class);
     private final CryptPassword cryptPassword = new CryptPassword();
-    private final ApplicationSettings applicationSettings;
+    private final ApplicationSettings settings;
+    private Logger errorLogger;
 
-    private Logger errorLog;
 
-    ApiAuthInterceptor(ApplicationSettings applicationSettings, Logger errorLog) {
-        this.applicationSettings = applicationSettings;
-        this.errorLog = errorLog;
+    public ApiAuthInterceptor(ApplicationSettings applicationSettings, Logger errorLogger) {
+        this.settings = applicationSettings;
+        this.errorLogger = errorLogger;
     }
 
     @Override
-    public boolean preHandle(HttpServletRequest request, HttpServletResponse response,
-                             Object handler) throws IOException {
-        if (applicationSettings.authorizationEnabled()) {
+    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler)
+        throws IOException {
+
+        if(settings.authMethod().equalsIgnoreCase(AuthMethodType.CERT_BASIC_AUTH.value())){
+            if (request.getAttribute("javax.servlet.request.X509Certificate") != null){
+                LOG.info("Request is authorized by certificate ");
+                return true;
+            }
+        }
+
+        if (isBasicAuth()) {
             String authorizationHeader = request.getHeader("Authorization");
             if (authorizationHeader == null || !isAuthorized(authorizationHeader)) {
-                response.setStatus(400);
-                errorLog.error("EVENT_RECEIPT_FAILURE: Unauthorized user");
+                response.setStatus(401);
+                errorLogger.error("EVENT_RECEIPT_FAILURE: Unauthorized user");
                 response.getWriter().write(ApiException.UNAUTHORIZED_USER.toJSON().toString());
                 return false;
             }
+            LOG.info("Request is authorized by basic auth");
         }
         return true;
     }
 
+    private boolean isBasicAuth() {
+        return settings.authMethod().equalsIgnoreCase(AuthMethodType.BASIC_AUTH.value())
+            || settings.authMethod().equalsIgnoreCase(AuthMethodType.CERT_BASIC_AUTH.value());
+    }
+
     private boolean isAuthorized(String authorizationHeader) {
         try  {
             String encodedData = authorizationHeader.split(" ")[1];
             String decodedData = new String(Base64.getDecoder().decode(encodedData));
             String providedUser = decodedData.split(":")[0].trim();
             String providedPassword = decodedData.split(":")[1].trim();
-            Option<String> maybeSavedPassword = applicationSettings.validAuthorizationCredentials().get(providedUser);
+            Option<String> maybeSavedPassword = settings.validAuthorizationCredentials().get(providedUser);
             boolean userRegistered = maybeSavedPassword.isDefined();
             return userRegistered && cryptPassword.matches(providedPassword,maybeSavedPassword.get());
         } catch (Exception e) {
diff --git a/src/main/java/org/onap/dcae/restapi/ServletConfig.java b/src/main/java/org/onap/dcae/restapi/ServletConfig.java
index e66f3f1f..e68ddcdf 100644
--- a/src/main/java/org/onap/dcae/restapi/ServletConfig.java
+++ b/src/main/java/org/onap/dcae/restapi/ServletConfig.java
@@ -21,23 +21,17 @@
 
 package org.onap.dcae.restapi;
 
-import static java.nio.file.Files.readAllBytes;
-
-import java.io.FileInputStream;
-import java.io.IOException;
-import java.io.InputStream;
-import java.nio.file.Path;
-import java.nio.file.Paths;
-import java.security.GeneralSecurityException;
-import java.security.KeyStore;
-import java.security.KeyStoreException;
+import java.util.HashMap;
+import java.util.Map;
 import org.onap.dcae.ApplicationException;
 import org.onap.dcae.ApplicationSettings;
-import org.onap.dcae.common.SSLContextCreator;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
+import org.onap.dcae.common.configuration.AuthMethod;
+import org.onap.dcae.common.configuration.AuthMethodType;
+import org.onap.dcae.common.configuration.BasicAuth;
+import org.onap.dcae.common.configuration.CertAuth;
+import org.onap.dcae.common.configuration.CertBasicAuth;
+import org.onap.dcae.common.configuration.NoAuth;
 import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.boot.web.server.Ssl;
 import org.springframework.boot.web.server.WebServerFactoryCustomizer;
 import org.springframework.boot.web.servlet.server.ConfigurableServletWebServerFactory;
 import org.springframework.stereotype.Component;
@@ -45,90 +39,28 @@ import org.springframework.stereotype.Component;
 @Component
 public class ServletConfig implements WebServerFactoryCustomizer<ConfigurableServletWebServerFactory> {
 
-    private static final Logger log = LoggerFactory.getLogger(ServletConfig.class);
-
     @Autowired
     private ApplicationSettings properties;
 
     @Override
     public void customize(ConfigurableServletWebServerFactory container) {
-        final boolean hasClientTlsAuthentication = properties.clientTlsAuthenticationEnabled();
-        if (hasClientTlsAuthentication || properties.authorizationEnabled()) {
-             container.setSsl(hasClientTlsAuthentication ? httpsContextWithTlsAuthentication() : simpleHttpsContext());
-            int port = properties.httpsPort();
-            container.setPort(port);
-            log.info("Application https port: " + port);
-        } else {
-            int port = properties.httpPort();
-            container.setPort(port);
-            log.info("Application http port: " + port);
-        }
-        
-    }
-
-    private SSLContextCreator simpleHttpsContextBuilder() {
-        log.info("Enabling SSL");
-
-        final Path keyStorePath = toAbsolutePath(properties.keystoreFileLocation());
-        log.info("Using keyStore path: " + keyStorePath);
-
-        final Path keyStorePasswordLocation = toAbsolutePath(properties.keystorePasswordFileLocation());
-        final String keyStorePassword = getKeyStorePassword(keyStorePasswordLocation);
-        log.info("Using keyStore password from: " + keyStorePasswordLocation);
-        return SSLContextCreator.create(keyStorePath, getKeyStoreAlias(keyStorePath, keyStorePassword), keyStorePassword);
-    }
-
-    private String getKeyStoreAlias(Path keyStorePath, String keyStorePassword) {
-        KeyStore keyStore = getKeyStore();
-        try(InputStream keyStoreData = new FileInputStream(keyStorePath.toString())){
-            keyStore.load(keyStoreData, keyStorePassword.toCharArray());
-            String alias = keyStore.aliases().nextElement();
-            log.info("Actual key store alias is: " + alias);
-            return alias;
-        } catch (IOException | GeneralSecurityException ex) {
-            log.error("Cannot load Key Store alias cause: " + ex);
-            throw new ApplicationException(ex);
-        }
-    }
-
-    private KeyStore getKeyStore() {
-        try {
-            return KeyStore.getInstance(KeyStore.getDefaultType());
-        } catch (KeyStoreException ex) {
-            log.error("Cannot create Key Store instance cause: " + ex);
-            throw new ApplicationException(ex);
-        }
-    }
-
-    private Ssl simpleHttpsContext() {
-        return simpleHttpsContextBuilder().build();
-    }
-
-    private Ssl httpsContextWithTlsAuthentication() {
-        final SSLContextCreator sslContextCreator = simpleHttpsContextBuilder();
-
-        log.info("Enabling TLS client authorization");
-
-        final Path trustStore = toAbsolutePath(properties.truststoreFileLocation());
-        log.info("Using trustStore path: " + trustStore);
-
-        final Path trustPasswordFileLocation = toAbsolutePath(properties.truststorePasswordFileLocation());
-        final String trustStorePassword = getKeyStorePassword(trustPasswordFileLocation);
-        log.info("Using trustStore password from: " + trustPasswordFileLocation);
-
-        return sslContextCreator.withTlsClientAuthentication(trustStore, trustStorePassword).build();
+        provideAuthConfigurations(container).getOrDefault(properties.authMethod(),
+            notSupportedOperation()).configure();
     }
 
-    private Path toAbsolutePath(final String path) {
-        return Paths.get(path).toAbsolutePath();
+    private Map<String, AuthMethod> provideAuthConfigurations(ConfigurableServletWebServerFactory container) {
+        Map<String, AuthMethod> authMethods = new HashMap<>();
+        authMethods.put(AuthMethodType.CERT_ONLY.value(), new CertAuth(container, properties));
+        authMethods.put(AuthMethodType.BASIC_AUTH.value(), new BasicAuth(container, properties));
+        authMethods.put(AuthMethodType.CERT_BASIC_AUTH.value(), new CertBasicAuth(container, properties));
+        authMethods.put(AuthMethodType.NO_AUTH.value(), new NoAuth(container, properties));
+        return authMethods;
     }
 
-    private String getKeyStorePassword(final Path location) {
-        try {
-            return new String(readAllBytes(location));
-        } catch (IOException e) {
-            log.error("Could not read keystore password from: '" + location + "'.", e);
-            throw new ApplicationException(e);
-        }
+    private AuthMethod notSupportedOperation() {
+        return () -> {
+            throw new ApplicationException(
+                "Provided auth method not allowed: " + properties.authMethod());
+        };
     }
 }
\ No newline at end of file
diff --git a/src/test/java/org/onap/dcae/ApplicationSettingsTest.java b/src/test/java/org/onap/dcae/ApplicationSettingsTest.java
index 646d3e52..60287aef 100644
--- a/src/test/java/org/onap/dcae/ApplicationSettingsTest.java
+++ b/src/test/java/org/onap/dcae/ApplicationSettingsTest.java
@@ -344,22 +344,12 @@ public class ApplicationSettingsTest {
     }
 
     @Test
-    public void shouldReturnIfAuthorizationIsEnabled() throws IOException {
-        // when
-        boolean authorizationEnabled = fromTemporaryConfiguration("header.authflag=1")
-            .authorizationEnabled();
-
-        // then
-        assertTrue(authorizationEnabled);
-    }
-
-    @Test
     public void shouldAuthorizationBeDisabledByDefault() throws IOException {
         // when
-        boolean authorizationEnabled = fromTemporaryConfiguration().authorizationEnabled();
+        boolean authorizationEnabled = fromTemporaryConfiguration().authMethod().contains("noAuth");
 
         // then
-        assertFalse(authorizationEnabled);
+        assertTrue(authorizationEnabled);
     }
 
     @Test
diff --git a/src/test/java/org/onap/dcae/TLSTest.java b/src/test/java/org/onap/dcae/TLSTest.java
index e088df28..b1f90371 100644
--- a/src/test/java/org/onap/dcae/TLSTest.java
+++ b/src/test/java/org/onap/dcae/TLSTest.java
@@ -24,6 +24,7 @@ package org.onap.dcae;
 import io.vavr.collection.HashMap;
 import org.junit.jupiter.api.Nested;
 import org.junit.jupiter.api.Test;
+import org.onap.dcae.common.configuration.AuthMethodType;
 import org.springframework.context.annotation.Import;
 import org.springframework.http.HttpStatus;
 
@@ -86,8 +87,8 @@ public class TLSTest extends TLSTestBase {
     class HttpsWithTLSAuthenticationAndBasicAuthTest extends TestClassBase {
 
         @Test
-        public void shouldHttpsRequestWithoutBasicAuthFail() {
-            assertThrows(Exception.class, this::makeHttpsRequestWithClientCert);
+        public void shouldHttpsRequestWithoutBasicAuthSucceed() {
+            assertEquals(HttpStatus.OK, makeHttpsRequestWithClientCert().getStatusCode());
         }
 
         @Test
@@ -100,6 +101,7 @@ public class TLSTest extends TLSTestBase {
     static class HttpConfiguration extends TLSTestBase.ConfigurationBase {
         @Override
         protected void configureSettings(ApplicationSettings settings) {
+            when(settings.authMethod()).thenReturn(AuthMethodType.NO_AUTH.value());
         }
     }
 
@@ -111,7 +113,7 @@ public class TLSTest extends TLSTestBase {
         protected void configureSettings(ApplicationSettings settings) {
             when(settings.keystoreFileLocation()).thenReturn(KEYSTORE.toString());
             when(settings.keystorePasswordFileLocation()).thenReturn(KEYSTORE_PASSWORD_FILE.toString());
-            when(settings.authorizationEnabled()).thenReturn(true);
+            when(settings.authMethod()).thenReturn(AuthMethodType.BASIC_AUTH.value());
             when(settings.validAuthorizationCredentials()).thenReturn(HashMap.of(USERNAME, "$2a$10$51tDgG2VNLde5E173Ay/YO.Fq.aD.LR2Rp8pY3QAKriOSPswvGviy"));
         }
     }
@@ -120,8 +122,7 @@ public class TLSTest extends TLSTestBase {
         @Override
         protected void configureSettings(ApplicationSettings settings) {
             super.configureSettings(settings);
-            when(settings.authorizationEnabled()).thenReturn(false);
-            when(settings.clientTlsAuthenticationEnabled()).thenReturn(true);
+            when(settings.authMethod()).thenReturn(AuthMethodType.CERT_ONLY.value());
             when(settings.truststoreFileLocation()).thenReturn(TRUSTSTORE.toString());
             when(settings.truststorePasswordFileLocation()).thenReturn(TRUSTSTORE_PASSWORD_FILE.toString());
         }
@@ -131,7 +132,7 @@ public class TLSTest extends TLSTestBase {
         @Override
         protected void configureSettings(ApplicationSettings settings) {
             super.configureSettings(settings);
-            when(settings.authorizationEnabled()).thenReturn(true);
+            when(settings.authMethod()).thenReturn(AuthMethodType.CERT_BASIC_AUTH.value());
         }
     }
-}
+}
\ No newline at end of file
diff --git a/src/test/java/org/onap/dcae/restapi/ApiAuthInterceptionTest.java b/src/test/java/org/onap/dcae/restapi/ApiAuthInterceptionTest.java
index 569fd969..a295046b 100644
--- a/src/test/java/org/onap/dcae/restapi/ApiAuthInterceptionTest.java
+++ b/src/test/java/org/onap/dcae/restapi/ApiAuthInterceptionTest.java
@@ -28,6 +28,7 @@ import org.mockito.InjectMocks;
 import org.mockito.Mock;
 import org.mockito.junit.MockitoJUnitRunner;
 import org.onap.dcae.ApplicationSettings;
+import org.onap.dcae.common.configuration.AuthMethodType;
 import org.slf4j.Logger;
 import org.springframework.http.HttpHeaders;
 import org.springframework.http.HttpStatus;
@@ -89,7 +90,7 @@ public class ApiAuthInterceptionTest {
         // given
         final HttpServletRequest request = createEmptyRequest();
 
-        when(settings.authorizationEnabled()).thenReturn(false);
+        when(settings.authMethod()).thenReturn(AuthMethodType.NO_AUTH.value());
 
         // when
         final boolean isAuthorized = sut.preHandle(request, response, obj);
@@ -103,7 +104,7 @@ public class ApiAuthInterceptionTest {
         // given
         final HttpServletRequest request = createEmptyRequest();
 
-        when(settings.authorizationEnabled()).thenReturn(true);
+        when(settings.authMethod()).thenReturn(AuthMethodType.BASIC_AUTH.value());
         when(response.getWriter()).thenReturn(writer);
 
         // when
@@ -113,7 +114,7 @@ public class ApiAuthInterceptionTest {
         // then
         assertFalse(isAuthorized);
 
-        verify(response).setStatus(HttpStatus.BAD_REQUEST.value());
+        verify(response).setStatus(HttpStatus.UNAUTHORIZED.value());
         verify(writer).write(ApiException.UNAUTHORIZED_USER.toJSON().toString());
     }
 
@@ -122,7 +123,7 @@ public class ApiAuthInterceptionTest {
         // given
         final HttpServletRequest request = createRequestWithAuthorizationHeader();
 
-        when(settings.authorizationEnabled()).thenReturn(true);
+        when(settings.authMethod()).thenReturn(AuthMethodType.BASIC_AUTH.value());
         when(response.getWriter()).thenReturn(writer);
 
         // when
@@ -131,7 +132,7 @@ public class ApiAuthInterceptionTest {
         // then
         assertFalse(isAuthorized);
 
-        verify(response).setStatus(HttpStatus.BAD_REQUEST.value());
+        verify(response).setStatus(HttpStatus.UNAUTHORIZED.value());
         verify(writer).write(ApiException.UNAUTHORIZED_USER.toJSON().toString());
     }
 
@@ -139,7 +140,7 @@ public class ApiAuthInterceptionTest {
     public void shouldSucceed() throws IOException {
         // given
         final HttpServletRequest request = createRequestWithAuthorizationHeader();
-        when(settings.authorizationEnabled()).thenReturn(true);
+        when(settings.authMethod()).thenReturn(AuthMethodType.CERT_ONLY.value());
         when(settings.validAuthorizationCredentials()).thenReturn(
             HashMap.of(USERNAME, "$2a$10$BsZkEynNm/93wbAeeZuxJeu6IHRyQl4XReqDg2BtYOFDhUsz20.3G"));
         when(response.getWriter()).thenReturn(writer);
@@ -160,7 +161,7 @@ public class ApiAuthInterceptionTest {
                         .header(HttpHeaders.AUTHORIZATION, "FooBar")
                         .buildRequest(null);
 
-        when(settings.authorizationEnabled()).thenReturn(true);
+        when(settings.authMethod()).thenReturn(AuthMethodType.BASIC_AUTH.value());
         when(settings.validAuthorizationCredentials()).thenReturn(CREDENTIALS);
         when(response.getWriter()).thenReturn(writer);
 
@@ -170,7 +171,7 @@ public class ApiAuthInterceptionTest {
         // then
         assertFalse(isAuthorized);
 
-        verify(response).setStatus(HttpStatus.BAD_REQUEST.value());
+        verify(response).setStatus(HttpStatus.UNAUTHORIZED.value());
         verify(writer).write(ApiException.UNAUTHORIZED_USER.toJSON().toString());
     }
 }
diff --git a/src/test/resources/controller-config_dmaap_ip.json b/src/test/resources/controller-config_dmaap_ip.json
index f12a36fa..1cc6576b 100644
--- a/src/test/resources/controller-config_dmaap_ip.json
+++ b/src/test/resources/controller-config_dmaap_ip.json
@@ -1,5 +1,5 @@
 {
-	"header.authflag": 1,
+	"auth.method": "noAuth",
 	"collector.inputQueue.maxPending": 8096,
 	"collector.schema.checkflag": 1,
 	"collector.keystore.file.location": "/opt/app/dcae-certificate/keystore.jks",
diff --git a/src/test/resources/controller-config_singleline_ip.json b/src/test/resources/controller-config_singleline_ip.json
index 827138c7..c3a8d067 100644
--- a/src/test/resources/controller-config_singleline_ip.json
+++ b/src/test/resources/controller-config_singleline_ip.json
@@ -1,5 +1,5 @@
 {
-  "header.authflag": "1",
+  "auth.method": "noAuth",
   "collector.schema.file": "{\"v1\": \"./etc/CommonEventFormat_27.2.json\", \"v2\": \"./etc/CommonEventFormat_27.2.json\", \"v3\": \"./etc/CommonEventFormat_27.2.json\", \"v4\": \"./etc/CommonEventFormat_27.2.json\", \"v5\": \"./etc/CommonEventFormat_28.4.json\"}",
   "collector.keystore.passwordfile": "/opt/app/dcae-certificate/.password",
   "tomcat.maxthreads": "200",
diff --git a/src/test/resources/test_collector_ip_op.properties b/src/test/resources/test_collector_ip_op.properties
index 1d1364bc..9450067a 100644
--- a/src/test/resources/test_collector_ip_op.properties
+++ b/src/test/resources/test_collector_ip_op.properties
@@ -6,7 +6,7 @@ collector.schema.checkflag=1
 collector.schema.file={\"v1\":\"./etc/CommonEventFormat_27.2.json\",\"v2\":\"./etc/CommonEventFormat_27.2.json\",\"v3\":\"./etc/CommonEventFormat_27.2.json\",\"v4\":\"./etc/CommonEventFormat_27.2.json\",\"v5\":\"./etc/CommonEventFormat_28.4.json\"}
 collector.dmaap.streamid=fault=ves-fault,ves-fault-secondary|syslog=ves-syslog,ves-syslog-secondary|heartbeat=ves-heartbeat,ves-heartbeat-secondary|measurementsForVfScaling=ves-measurement,ves-measurement-secondary|mobileFlow=ves-mobileflow,ves-mobileflow-secondary|other=ves-other,ves-other-secondary|stateChange=ves-statechange,ves-statechange-secondary|thresholdCrossingAlert=ves-thresholdCrossingAlert,ves-thresholdCrossingAlert-secondary|voiceQuality=ves-voicequality,ves-voicequality-secondary|sipSignaling=ves-sipsignaling,ves-sipsignaling-secondary
 collector.dmaapfile=./etc/DmaapConfig.json
-header.authflag=1
+auth.method=noAuth
 header.authlist=sample1,$2a$10$pgjaxDzSuc6XVFEeqvxQ5u90DKJnM/u7TJTcinAlFJVaavXMWf/Zi|userid1,$2a$10$61gNubgJJl9lh3nvQvY9X.x4e5ETWJJ7ao7ZhJEvmfJigov26Z6uq|userid2,$2a$10$G52y/3uhuhWAMy.bx9Se8uzWinmbJa.dlm1LW6bYPdPkkywLDPLiy
 event.transform.flag=1
 collector.inputQueue.maxPending = 8096
diff --git a/src/test/resources/testcollector.properties b/src/test/resources/testcollector.properties
index a99fd067..c3fcca62 100644
--- a/src/test/resources/testcollector.properties
+++ b/src/test/resources/testcollector.properties
@@ -6,7 +6,7 @@ collector.schema.checkflag=1
 collector.schema.file={\"v1\":\"./etc/CommonEventFormat_27.2.json\",\"v2\":\"./etc/CommonEventFormat_27.2.json\",\"v3\":\"./etc/CommonEventFormat_27.2.json\",\"v4\":\"./etc/CommonEventFormat_27.2.json\",\"v5\":\"./etc/CommonEventFormat_28.4.json\"}

 collector.dmaap.streamid=fault=sec_fault|syslog=sec_syslog|heartbeat=sec_heartbeat|measurementsForVfScaling=sec_measurement|mobileFlow=sec_mobileflow|other=sec_other|stateChange=sec_statechange|thresholdCrossingAlert=sec_thresholdCrossingAlert|voiceQuality=ves_voicequality|sipSignaling=ves_sipsignaling

 collector.dmaapfile=./etc/DmaapConfig.json

-header.authflag=1

+auth.method=noAuth

 header.authlist=sample1,$2a$10$pgjaxDzSuc6XVFEeqvxQ5u90DKJnM/u7TJTcinAlFJVaavXMWf/Zi|userid1,$2a$10$61gNubgJJl9lh3nvQvY9X.x4e5ETWJJ7ao7ZhJEvmfJigov26Z6uq|userid2,$2a$10$G52y/3uhuhWAMy.bx9Se8uzWinmbJa.dlm1LW6bYPdPkkywLDPLiy

 event.transform.flag=1