Use org.logstash.common.Util to hashing by default to SHA256 (#17346)

Removes the usage fo Apache Commons Codec MessgeDigest to use internal Util class with embodies hashing methods.

logstash-core/build.gradle

@@ -238,7 +238,7 @@ dependencies {
     implementation('org.reflections:reflections:0.10.2') {
         exclude group: 'com.google.guava', module: 'guava'
     }
-    implementation 'commons-codec:commons-codec:1.17.0'
+    implementation 'commons-codec:commons-codec:1.17.0' // transitively required by httpclient
     // Jackson version moved to versions.yml in the project root (the JrJackson version is there too)
     implementation "com.fasterxml.jackson.core:jackson-core:${jacksonVersion}"
     api "com.fasterxml.jackson.core:jackson-databind:${jacksonDatabindVersion}"

logstash-core/src/main/java/org/logstash/common/Util.java

@@ -35,6 +35,13 @@ public class Util {
         }
     }
 
+    /**
+     * Returns the hexadecimal string of UTF-8 bytes that make up the string.
+     * @param base
+     *      the string to hash.
+     * @return
+     *      hexadecimal string that contains the hash.
+     * */
     public static String digest(String base) {
         MessageDigest digest = defaultMessageDigest();
         byte[] hash = digest.digest(base.getBytes(StandardCharsets.UTF_8));

logstash-core/src/main/java/org/logstash/config/ir/PipelineConfig.java

@@ -19,16 +19,24 @@
 
 package org.logstash.config.ir;
 
-import org.apache.commons.codec.digest.DigestUtils;
 import org.apache.logging.log4j.LogManager;
 import org.apache.logging.log4j.Logger;
-import org.jruby.*;
+import org.jruby.RubyArray;
+import org.jruby.RubyClass;
+import org.jruby.RubyObject;
+import org.jruby.RubyString;
+import org.jruby.RubySymbol;
 import org.jruby.runtime.builtin.IRubyObject;
 import org.logstash.common.IncompleteSourceWithMetadataException;
 import org.logstash.common.SourceWithMetadata;
+import org.logstash.common.Util;
 
 import java.time.LocalDateTime;
-import java.util.*;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.Comparator;
+import java.util.List;
 import java.util.stream.Collectors;
 
 import static org.logstash.RubyUtil.RUBY;
@@ -105,7 +113,7 @@ public final class PipelineConfig {
 
     public String configHash() {
         if (configHash == null) {
-            configHash = DigestUtils.sha1Hex(configString() + metadataString());
+            configHash = Util.digest(configString() + metadataString());
         }
         return configHash;
     }

logstash-core/src/main/java/org/logstash/plugins/AliasRegistry.java

@@ -1,8 +1,8 @@
 package org.logstash.plugins;
 
-import org.apache.commons.codec.digest.DigestUtils;
 import org.apache.logging.log4j.LogManager;
 import org.apache.logging.log4j.Logger;
+import org.logstash.common.Util;
 import org.logstash.plugins.PluginLookup.PluginType;
 import org.logstash.plugins.aliases.AliasDocumentReplace;
 import org.logstash.plugins.aliases.AliasPlugin;
@@ -109,7 +109,7 @@ public class AliasRegistry {
         }
 
         private String computeHashFromContent() {
-            return DigestUtils.sha256Hex(yamlContents);
+            return Util.digest(yamlContents);
         }
 
         @SuppressWarnings("unchecked")

logstash-core/src/main/java/org/logstash/util/EscapeHandler.java

@@ -1,8 +1,5 @@
 package org.logstash.util;
 
-import org.apache.commons.codec.DecoderException;
-import org.apache.commons.codec.binary.Hex;
-
 import java.net.URLDecoder;
 import java.nio.charset.StandardCharsets;
 import java.util.regex.Pattern;

tools/benchmark-cli/build.gradle

@@ -51,7 +51,7 @@ dependencies {
   implementation group: 'org.apache.httpcomponents', name: 'httpclient', version: '4.5.14'
   implementation group: 'org.apache.commons', name: 'commons-compress', version: '1.26.1'
   implementation group: 'org.apache.commons', name: 'commons-lang3', version: '3.14.0'
-  implementation group: 'commons-codec', name: 'commons-codec', version: '1.17.0'
+  implementation group: 'commons-codec', name: 'commons-codec', version: '1.17.0' // transitively required by httpclient
 
   implementation group: 'commons-io', name: 'commons-io', version: '2.16.1'
   implementation "com.fasterxml.jackson.core:jackson-core:${jacksonVersion}"