reference/logging-filter/logging-filter-base/src/main/java/org/onap/logging/filter/base/MDCSetup.java

   1 /*-
   2  * ============LICENSE_START=======================================================
   3  * ONAP - Logging
   4  * ================================================================================
   5  * Copyright (C) 2019 AT&T Intellectual Property. All rights reserved.
   6  * ================================================================================
   7  * Licensed under the Apache License, Version 2.0 (the "License");
   8  * you may not use this file except in compliance with the License.
   9  * You may obtain a copy of the License at
  10  *
  11  *      http://www.apache.org/licenses/LICENSE-2.0
  12  *
  13  * Unless required by applicable law or agreed to in writing, software
  14  * distributed under the License is distributed on an "AS IS" BASIS,
  15  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  16  * See the License for the specific language governing permissions and
  17  * limitations under the License.
  18  * ============LICENSE_END=========================================================
  19  */
  20
  21 package org.onap.logging.filter.base;
  22
  23 import java.net.InetAddress;
  24 import java.net.UnknownHostException;
  25 import java.time.ZoneOffset;
  26 import java.time.ZonedDateTime;
  27 import java.time.format.DateTimeFormatter;
  28 import java.time.temporal.ChronoUnit;
  29 import java.util.Base64;
  30 import java.util.UUID;
  31 import javax.servlet.http.HttpServletRequest;
  32 import javax.ws.rs.core.HttpHeaders;
  33 import javax.ws.rs.core.Response;
  34 import org.onap.logging.ref.slf4j.ONAPLogConstants;
  35 import org.slf4j.Logger;
  36 import org.slf4j.LoggerFactory;
  37 import org.slf4j.MDC;
  38
  39 public class MDCSetup {
  40
  41     protected static Logger logger = LoggerFactory.getLogger(MDCSetup.class);
  42
  43     private static final String INSTANCE_UUID = UUID.randomUUID().toString();
  44
  45     public void setInstanceID() {
  46         MDC.put(ONAPLogConstants.MDCs.INSTANCE_UUID, INSTANCE_UUID);
  47     }
  48
  49     public void setServerFQDN() {
  50         String serverFQDN = "";
  51         InetAddress addr = null;
  52         try {
  53             addr = InetAddress.getLocalHost();
  54             serverFQDN = addr.getCanonicalHostName();
  55             MDC.put(ONAPLogConstants.MDCs.SERVER_IP_ADDRESS, addr.getHostAddress());
  56         } catch (UnknownHostException e) {
  57             logger.warn("Cannot Resolve Host Name");
  58             serverFQDN = "";
  59         }
  60         MDC.put(ONAPLogConstants.MDCs.SERVER_FQDN, serverFQDN);
  61     }
  62
  63     public void setClientIPAddress(HttpServletRequest httpServletRequest) {
  64         String clientIpAddress = "";
  65         if (httpServletRequest != null) {
  66             // This logic is to avoid setting the client ip address to that of the load
  67             // balancer in front of the application
  68             String getForwadedFor = httpServletRequest.getHeader("X-Forwarded-For");
  69             if (getForwadedFor != null) {
  70                 clientIpAddress = getForwadedFor;
  71             } else {
  72                 clientIpAddress = httpServletRequest.getRemoteAddr();
  73             }
  74         }
  75         MDC.put(ONAPLogConstants.MDCs.CLIENT_IP_ADDRESS, clientIpAddress);
  76     }
  77
  78     public void setEntryTimeStamp() {
  79         MDC.put(ONAPLogConstants.MDCs.ENTRY_TIMESTAMP,
  80                 ZonedDateTime.now(ZoneOffset.UTC).format(DateTimeFormatter.ISO_INSTANT));
  81     }
  82
  83     public String getRequestId(SimpleMap headers) {
  84         logger.trace("Checking X-ONAP-RequestID header for requestId.");
  85         String requestId = headers.get(ONAPLogConstants.Headers.REQUEST_ID);
  86         if (requestId != null && !requestId.isEmpty()) {
  87             return requestId;
  88         }
  89
  90         logger.trace("No valid X-ONAP-RequestID header value. Checking X-RequestID header for requestId.");
  91         requestId = headers.get(Constants.HttpHeaders.HEADER_REQUEST_ID);
  92         if (requestId != null && !requestId.isEmpty()) {
  93             return requestId;
  94         }
  95
  96         logger.trace("No valid X-RequestID header value. Checking X-TransactionID header for requestId.");
  97         requestId = headers.get(Constants.HttpHeaders.TRANSACTION_ID);
  98         if (requestId != null && !requestId.isEmpty()) {
  99             return requestId;
 100         }
 101
 102         logger.trace("No valid X-TransactionID header value. Checking X-ECOMP-RequestID header for requestId.");
 103         requestId = headers.get(Constants.HttpHeaders.ECOMP_REQUEST_ID);
 104         if (requestId != null && !requestId.isEmpty()) {
 105             return requestId;
 106         }
 107
 108         logger.trace("No valid requestId headers. Generating requestId: {}", requestId);
 109         return UUID.randomUUID().toString();
 110     }
 111
 112     public void setInvocationId(SimpleMap headers) {
 113         String invocationId = headers.get(ONAPLogConstants.Headers.INVOCATION_ID);
 114         if (invocationId == null || invocationId.isEmpty())
 115             invocationId = UUID.randomUUID().toString();
 116         MDC.put(ONAPLogConstants.MDCs.SERVER_INVOCATION_ID, invocationId);
 117     }
 118
 119     public void setMDCPartnerName(SimpleMap headers) {
 120         String partnerName = getMDCPartnerName(headers);
 121         MDC.put(ONAPLogConstants.MDCs.PARTNER_NAME, partnerName);
 122     }
 123
 124     protected String getMDCPartnerName(SimpleMap headers) {
 125         String checkHeaderLogPattern = "Checking {} header to determine the value of {}";
 126
 127         logger.trace(checkHeaderLogPattern, HttpHeaders.AUTHORIZATION, ONAPLogConstants.MDCs.PARTNER_NAME);
 128         String partnerName = getBasicAuthUserName(headers);
 129         if (partnerName != null && !partnerName.isEmpty()) {
 130             return partnerName;
 131         }
 132
 133         logger.trace(checkHeaderLogPattern, ONAPLogConstants.Headers.PARTNER_NAME, ONAPLogConstants.MDCs.PARTNER_NAME);
 134         partnerName = headers.get(ONAPLogConstants.Headers.PARTNER_NAME);
 135         if (partnerName != null && !partnerName.isEmpty()) {
 136             return partnerName;
 137         }
 138
 139         logger.trace(checkHeaderLogPattern, HttpHeaders.USER_AGENT, ONAPLogConstants.MDCs.PARTNER_NAME);
 140         partnerName = headers.get(HttpHeaders.USER_AGENT);
 141         if (partnerName != null && !partnerName.isEmpty()) {
 142             return partnerName;
 143         }
 144
 145         logger.trace(checkHeaderLogPattern, Constants.HttpHeaders.CLIENT_ID, ONAPLogConstants.MDCs.PARTNER_NAME);
 146         partnerName = headers.get(Constants.HttpHeaders.CLIENT_ID);
 147         if (partnerName != null && !partnerName.isEmpty()) {
 148             return partnerName;
 149         }
 150
 151         logger.trace("{} value could not be determined, defaulting partnerName to {}.",
 152                 ONAPLogConstants.MDCs.PARTNER_NAME, Constants.DefaultValues.UNKNOWN);
 153         return Constants.DefaultValues.UNKNOWN;
 154     }
 155
 156     public void setLogTimestamp() {
 157         MDC.put(ONAPLogConstants.MDCs.LOG_TIMESTAMP,
 158                 ZonedDateTime.now(ZoneOffset.UTC).format(DateTimeFormatter.ISO_INSTANT));
 159     }
 160
 161     public void setElapsedTime() {
 162         try {
 163             DateTimeFormatter timeFormatter = DateTimeFormatter.ISO_ZONED_DATE_TIME;
 164             ZonedDateTime entryTimestamp =
 165                     ZonedDateTime.parse(MDC.get(ONAPLogConstants.MDCs.ENTRY_TIMESTAMP), timeFormatter);
 166             ZonedDateTime endTimestamp =
 167                     ZonedDateTime.parse(MDC.get(ONAPLogConstants.MDCs.LOG_TIMESTAMP), timeFormatter);
 168
 169             MDC.put(ONAPLogConstants.MDCs.ELAPSED_TIME,
 170                     Long.toString(ChronoUnit.MILLIS.between(entryTimestamp, endTimestamp)));
 171         } catch (Exception e) {
 172             logger.warn("Unable to calculate elapsed time due to error: {}", e.getMessage());
 173         }
 174     }
 175
 176     public void setElapsedTimeInvokeTimestamp() {
 177         try {
 178             DateTimeFormatter timeFormatter = DateTimeFormatter.ISO_ZONED_DATE_TIME;
 179             ZonedDateTime entryTimestamp =
 180                     ZonedDateTime.parse(MDC.get(ONAPLogConstants.MDCs.INVOKE_TIMESTAMP), timeFormatter);
 181             ZonedDateTime endTimestamp =
 182                     ZonedDateTime.parse(MDC.get(ONAPLogConstants.MDCs.LOG_TIMESTAMP), timeFormatter);
 183
 184             MDC.put(ONAPLogConstants.MDCs.ELAPSED_TIME,
 185                     Long.toString(ChronoUnit.MILLIS.between(entryTimestamp, endTimestamp)));
 186         } catch (Exception e) {
 187             logger.warn("Unable to calculate elapsed time due to error: {}", e.getMessage());
 188         }
 189     }
 190
 191     public void setResponseStatusCode(int code) {
 192         String statusCode;
 193         if (Response.Status.Family.familyOf(code).equals(Response.Status.Family.SUCCESSFUL)) {
 194             statusCode = ONAPLogConstants.ResponseStatus.COMPLETE.toString();
 195         } else {
 196             statusCode = ONAPLogConstants.ResponseStatus.ERROR.toString();
 197             setErrorCode(code);
 198             setErrorDesc(code);
 199         }
 200         MDC.put(ONAPLogConstants.MDCs.RESPONSE_STATUS_CODE, statusCode);
 201     }
 202
 203     public void setTargetEntity(ONAPComponentsList targetEntity) {
 204         MDC.put(ONAPLogConstants.MDCs.TARGET_ENTITY, targetEntity.toString());
 205     }
 206
 207     public void clearClientMDCs() {
 208         MDC.remove(ONAPLogConstants.MDCs.CLIENT_INVOCATION_ID);
 209         MDC.remove(ONAPLogConstants.MDCs.RESPONSE_DESCRIPTION);
 210         MDC.remove(ONAPLogConstants.MDCs.RESPONSE_STATUS_CODE);
 211         MDC.remove(ONAPLogConstants.MDCs.RESPONSE_CODE);
 212         MDC.remove(ONAPLogConstants.MDCs.TARGET_ENTITY);
 213         MDC.remove(ONAPLogConstants.MDCs.TARGET_SERVICE_NAME);
 214         MDC.remove(ONAPLogConstants.MDCs.INVOKE_TIMESTAMP);
 215         MDC.remove(ONAPLogConstants.MDCs.ERROR_CODE);
 216         MDC.remove(ONAPLogConstants.MDCs.ERROR_DESC);
 217     }
 218
 219     public void setResponseDescription(int statusCode) {
 220         MDC.put(ONAPLogConstants.MDCs.RESPONSE_DESCRIPTION, Response.Status.fromStatusCode(statusCode).toString());
 221     }
 222
 223     public void setErrorCode(int statusCode) {
 224         MDC.put(ONAPLogConstants.MDCs.ERROR_CODE, String.valueOf(statusCode));
 225     }
 226
 227     public void setErrorDesc(int statusCode) {
 228         MDC.put(ONAPLogConstants.MDCs.ERROR_DESC, Response.Status.fromStatusCode(statusCode).toString());
 229     }
 230
 231     public String getProperty(String property) {
 232         String propertyValue = System.getProperty(property);
 233         if (propertyValue == null || propertyValue.isEmpty()) {
 234             propertyValue = System.getenv(property);
 235             if (propertyValue == null || propertyValue.isEmpty()) {
 236                 propertyValue = Constants.DefaultValues.UNKNOWN;
 237             }
 238         }
 239         return propertyValue;
 240     }
 241
 242     protected String getBasicAuthUserName(SimpleMap headers) {
 243         String encodedAuthorizationValue = headers.get(HttpHeaders.AUTHORIZATION);
 244         if (encodedAuthorizationValue != null && encodedAuthorizationValue.startsWith("Basic")) {
 245             try {
 246                 // This will strip the word Basic and single space
 247                 encodedAuthorizationValue = encodedAuthorizationValue.substring(6);
 248                 byte[] decodedBytes = Base64.getDecoder().decode(encodedAuthorizationValue);
 249                 String decodedString = new String(decodedBytes);
 250                 int idx = decodedString.indexOf(':');
 251                 return decodedString.substring(0, idx);
 252             } catch (IllegalArgumentException e) {
 253                 logger.error("could not decode basic auth value " + encodedAuthorizationValue, e);
 254             }
 255         }
 256         return null;
 257     }
 258 }