TSK-1520: introduced taskana-common-security as a dedicated module.

.github/workflows/continuous-integration.yml

@@ -218,6 +218,7 @@ jobs:
       matrix:
         module:
           - taskana-common
+          - taskana-common-security
           - taskana-common-data
           - taskana-common-test
           - taskana-core
@@ -347,7 +348,7 @@ jobs:
           ./mvnw -B deploy -P $([[ "$GITHUB_REF" =~ ^refs/tags/v[0-9]+\.[0-9]+\.[0-9]+$ ]] && echo "release" || echo "snapshot") \
           --settings ci/mvnsettings.xml -DskipTests -Dcheckstyle.skip -Dasciidoctor.skip -Djacoco.skip \
           -pl :taskana-parent,\
-          :taskana-common-parent,:taskana-common,:taskana-common-data,:taskana-common-test,\
+          :taskana-common-parent,:taskana-common,:taskana-common-security,:taskana-common-data,:taskana-common-test,\
           :taskana-lib-parent,:taskana-core,:taskana-cdi,:taskana-spring,\
           :taskana-rest-parent,:taskana-web,:taskana-rest-spring,\
           :taskana-history-parent,:taskana-simplehistory-provider,:taskana-simplehistory-rest-spring,:taskana-loghistory-provider

common/pom.xml

@@ -18,6 +18,7 @@
 
   <modules>
     <module>taskana-common</module>
+    <module>taskana-common-security</module>
     <module>taskana-common-data</module>
     <module>taskana-common-test</module>
   </modules>

common/taskana-common-security/pom.xml

@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+  <artifactId>taskana-common-security</artifactId>
+
+  <name>${project.groupId}:${project.artifactId}</name>
+  <description>The global security principals needed for user and group authentication</description>
+
+  <parent>
+    <artifactId>taskana-common-parent</artifactId>
+    <groupId>pro.taskana</groupId>
+    <version>4.3.1-SNAPSHOT</version>
+  </parent>
+
+  <dependencies>
+    <dependency>
+      <groupId>org.slf4j</groupId>
+      <artifactId>slf4j-api</artifactId>
+    </dependency>
+  </dependencies>
+</project>

common/taskana-common-security/src/main/java/pro/taskana/common/internal/security/CurrentUserContextImpl.java

@@ -1,7 +1,5 @@
 package pro.taskana.common.internal.security;
 
-import static pro.taskana.common.internal.util.CheckedFunction.wrap;
-
 import java.lang.reflect.Method;
 import java.security.AccessController;
 import java.security.Principal;
@@ -87,12 +85,22 @@ public class CurrentUserContextImpl implements CurrentUserContext {
         LOGGER.debug("Public credentials of caller: {}", publicCredentials);
         return publicCredentials.stream()
             .map(
-                wrap(
+                // we could use CheckedFunction#wrap here, but this either requires a dependency
-                    credential ->
+                // to taskana-common or an inclusion of the class CheckedFunction in this module.
-                        credential
+                // The first is not possible due to a cyclic dependency.
-                            .getClass()
+                // The second is not desired, since this module is a very slim security module and
-                            .getMethod(GET_UNIQUE_SECURITY_NAME_METHOD, (Class<?>[]) null)
+                // the inclusion of CheckedFunction and its transitive dependencies would increase
-                            .invoke(credential, (Object[]) null)))
+                // the module scope and introduce inconsistency.
+                credential -> {
+                  try {
+                    return credential
+                        .getClass()
+                        .getMethod(GET_UNIQUE_SECURITY_NAME_METHOD, (Class<?>[]) null)
+                        .invoke(credential, (Object[]) null);
+                  } catch (Exception e) {
+                    throw new SecurityException("Could not retrieve principal", e);
+                  }
+                })
             .peek(
                 o ->
                     LOGGER.debug(

common/taskana-common/pom.xml

@@ -15,6 +15,11 @@
   </parent>
 
   <dependencies>
+    <dependency>
+      <groupId>pro.taskana</groupId>
+      <artifactId>taskana-common-security</artifactId>
+      <version>${project.version}</version>
+    </dependency>
     <dependency>
       <groupId>org.json</groupId>
       <artifactId>json</artifactId>