Decouple Elasticsearch from CWS, make into external dependency

.gitignore

@@ -21,4 +21,4 @@ creds.txt
 cws-test/newCWSDir
 
 .DS_Store
-install/logging/logstash-6.4.2.zip
+install/logging/logstash-7.9.0.zip

NOTICE.txt

@@ -17,7 +17,6 @@ This software includes third party software subject to the following copyrights:
  - The AWS SDK for Java is Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
  - The Camunda BPMN Platform is Copyright 2013-2020 Camunda Services GmbH.
  - The Camunda Modeler is Copyright (c) Camunda Services GmbH.
- - The Elasticsearch software is Copyright 2009-2018 Elasticsearch.
  - The Logstash software is Copyright 2009-2018 Elasticsearch.
  - The Bootstrap software has the following copyright holders:
    - Copyright (c) 2011-2020 Twitter, Inc.

README.md

@@ -18,7 +18,8 @@ See the [wiki](https://github.com/NASA-AMMOS/common-workflow-service/wiki) for m
     - A database for CWS to use. `cws` is a good default.
     - A database user with full access to the above database.
   - [ITerm2](https://iterm2.com/): Currently these build scripts include commands to open new terminal windows using ITerm2, so they are best run from that terminal.
-  - **Logstash**: You will need to place the logstash 6.4.2 zip in `install/logging/`. This is a temporary workaround while we clean up our installation process. You can find the zip download [here](https://www.elastic.co/downloads/past-releases/logstash-6-4-2).
+  - **Logstash 7.9+**: You will need to place the logstash 7.9.0 zip in `install/logging/`. This is a temporary workaround while we clean up our installation process. You can find the zip download [here](https://www.elastic.co/downloads/past-releases/logstash-7-9-0).
+  - **Elasticsearch 7.9+**: CWS requires an externally-configured elasticsearch cluster to be set up. You can use elasticsearch with or without authentication. Please note that CWS currently only supports basic HTTP authentication.
   - Tomcat **keystore and truststore files** (needed for CWS web console to work properly):
     - You will need to add your own Tomcat keystore file to the `install/` direcotory
     - You will need to add your own truststor file to the `install/tomcat_lib/` directory

create_server_dist.sh

@@ -59,15 +59,10 @@ fi
 print 'Copying Logstash zip into place...'
 cp ${INSTALL_DIR}/logging/logstash-${LOGSTASH_VER}.zip ${CWS}/server
 
-# -----------------
-# ELASTICSEARCH
-print 'Copying elasticsearch zip into place...'
-cp ${INSTALL_DIR}/elasticsearch/elasticsearch-${ELASTICSEARCH_VER}.zip ${CWS}/server
-
 # MOVE TEMPLATE CONFIG FILES INTO PLACE
 print 'Copying configuration templates...'
 CONFIG_TEMPLATES_DIR=${CWS}/config/templates
-mkdir -p ${CONFIG_TEMPLATES_DIR}/{cws-engine,cws-ui,tomcat_bin,tomcat_lib,tomcat_conf,camunda_mods,engine-rest_mods,elasticsearch,logging}
+mkdir -p ${CONFIG_TEMPLATES_DIR}/{cws-engine,cws-ui,tomcat_bin,tomcat_lib,tomcat_conf,camunda_mods,engine-rest_mods,logging}
 
 cp ${INSTALL_DIR}/tomcat_lib/css-jaas.cfg                     ${CONFIG_TEMPLATES_DIR}/tomcat_lib
 cp ${INSTALL_DIR}/tomcat_bin/setenv.sh                        ${CONFIG_TEMPLATES_DIR}/tomcat_bin
@@ -85,8 +80,6 @@ cp ${INSTALL_DIR}/cws-ui/*.ftl                                ${CONFIG_TEMPLATES
 cp ${INSTALL_DIR}/cws-ui/sqs_dispatcher_thread_bean.xml       ${CONFIG_TEMPLATES_DIR}/cws-ui
 cp ${INSTALL_DIR}/camunda_mods/web.xml                        ${CONFIG_TEMPLATES_DIR}/camunda_mods
 cp ${INSTALL_DIR}/engine-rest/web.xml                         ${CONFIG_TEMPLATES_DIR}/engine-rest_mods
-cp ${INSTALL_DIR}/elasticsearch/elasticsearch.yml             ${CONFIG_TEMPLATES_DIR}/elasticsearch
-cp ${INSTALL_DIR}/elasticsearch/jvm.options                   ${CONFIG_TEMPLATES_DIR}/elasticsearch
 cp ${INSTALL_DIR}/logging/cws-logstash.conf                   ${CONFIG_TEMPLATES_DIR}/logging
 cp ${INSTALL_DIR}/refresh_cws_token.sh                        ${CONFIG_TEMPLATES_DIR}
 cp ${INSTALL_DIR}/stop_cws.sh                                 ${CONFIG_TEMPLATES_DIR}
@@ -211,7 +204,6 @@ cp ${INSTALL_DIR}/stop_cws.sh                          ${CWS}
 cp ${INSTALL_DIR}/refresh_cws_token.sh                 ${CWS}
 cp ${INSTALL_DIR}/deploy_proc_def.sh                   ${CWS}
 cp ${INSTALL_DIR}/launch_ls.sh                         ${CWS}
-cp ${INSTALL_DIR}/launch_es.sh                         ${CWS}
 
 print 'Copying Modeller scripts and libraries...'
 cp -R ${INSTALL_DIR}/modeler                    ${CWS}

cws-core/src/main/java/jpl/cws/core/web/WebUtils.java

@@ -4,6 +4,7 @@
 import java.io.OutputStream;
 import java.net.HttpURLConnection;
 import java.net.URL;
+import java.util.Base64;
 
 import javax.net.ssl.HttpsURLConnection;
 import javax.net.ssl.SSLContext;
@@ -47,16 +48,29 @@ public static RestCallResult restCall(String urlString, String method, String po
 		return restCall(urlString, method, postData,
 			null,  // cookie
 			null,  // acceptType
-			null,  // contentType
-			false  // allowInsecureRequests
+			null  // contentType
 		);
 	}
+
+	/**
+	 * Performs an unauthenticated REST call
+	 */
+	public static RestCallResult restCall(String urlString, String method, String data, String cookie, String acceptType, String contentType) throws Exception {
+		return restCall(urlString, method, data, cookie, acceptType, contentType, true, null, null);
+	}
+
+	/**
+	 * Performs an authenticated REST call
+	 */
+	public static RestCallResult restCall(String urlString, String method, String data, String cookie, String acceptType, String contentType, String username, String password) throws Exception {
+		return restCall(urlString, method, data, cookie, acceptType, contentType, false, username, password);
+	}
 
 	/**
 	 * Performs a REST call
 	 * 
 	 */
-	public static RestCallResult restCall(String urlString, String method, String data, String cookie, String acceptType, String contentType, Boolean allowInsecureRequests) throws Exception {
+	public static RestCallResult restCall(String urlString, String method, String data, String cookie, String acceptType, String contentType, Boolean allowInsecureRequests, String username, String password) throws Exception {
 		log.trace("urlString = " + urlString);
 		HttpURLConnection connection = null;
 		try {
@@ -72,7 +86,14 @@ else if (rootAndQueryString.length > 2) {
 
 			URL url = new URL(urlString);
 			connection = (HttpURLConnection) url.openConnection();
-
+
+			// Add authentication to request
+			if (username != null) {
+				String userpass = username + ":" + password;
+				String basicAuth = "Basic " + new String(Base64.getEncoder().encode(userpass.getBytes()));
+				connection.setRequestProperty ("Authorization", basicAuth);
+			}
+
 			if (allowInsecureRequests) {
 
 				log.info("SSL 'insecure' mode activated.");
@@ -136,10 +157,10 @@ else if (rootAndQueryString.length > 2) {
 					out.close();
 				}
 			}
-			
+
 			// Perform the connection
 			connection.connect();
-			
+
 			int responseCode = -1;
 			try {
 				responseCode = connection.getResponseCode();
@@ -149,7 +170,7 @@ else if (rootAndQueryString.length > 2) {
 			}
 			if (responseCode == 200) {
 				log.trace("REST "+method+" for " + url + " was successful (HTTP 200).");
-				
+
 				InputStream in = connection.getInputStream();
 				// FIXME: potential memory suck if response is large
 				String response = IOUtils.toString(in);
@@ -158,7 +179,7 @@ else if (rootAndQueryString.length > 2) {
 			}
 			else {
 				log.warn("REST " + method + " FAILED for " + url + ".  Response code was " + responseCode);
-				
+
 				return new RestCallResult(responseCode, null, connection.getResponseMessage());
 			}
 		}
@@ -179,8 +200,8 @@ else if (rootAndQueryString.length > 2) {
 			}
 		}
 	}
-	
-	
+
+
 	/**
 	 * 
 	 */