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Posted to commits@tomee.apache.org by jl...@apache.org on 2021/04/02 18:37:36 UTC

[tomee] branch master updated: TOMEE-2992 Patch Tomcat JASPIC Callback Handler

This is an automated email from the ASF dual-hosted git repository.

jlmonteiro pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/tomee.git


The following commit(s) were added to refs/heads/master by this push:
     new 53778c2  TOMEE-2992 Patch Tomcat JASPIC Callback Handler
53778c2 is described below

commit 53778c2ae88c328d9bfb3f972595b5aab8902466
Author: Jean-Louis Monteiro <jl...@tomitribe.com>
AuthorDate: Fri Apr 2 20:37:22 2021 +0200

    TOMEE-2992 Patch Tomcat JASPIC Callback Handler
---
 tomee/apache-tomee/pom.xml                         |  18 +++
 .../authenticator/jaspic/CallbackHandlerImpl.java  | 158 +++++++++++++++++++++
 2 files changed, 176 insertions(+)

diff --git a/tomee/apache-tomee/pom.xml b/tomee/apache-tomee/pom.xml
index ba3b706..f5fe890 100644
--- a/tomee/apache-tomee/pom.xml
+++ b/tomee/apache-tomee/pom.xml
@@ -506,6 +506,24 @@
           </execution>
         </executions>
       </plugin>
+      <plugin>
+        <groupId>org.apache.tomee.patch</groupId>
+        <artifactId>tomee-patch-plugin</artifactId>
+        <version>0.4-SNAPSHOT</version>
+        <configuration>
+          <select>apache-tomee-(plus|plume|webprofile|microprofile).*\.zip</select>
+          <skipTransform>true</skipTransform>
+          <createTarGz>true</createTarGz>
+        </configuration>
+        <executions>
+          <execution>
+            <goals>
+              <goal>run</goal>
+            </goals>
+            <phase>package</phase>
+          </execution>
+        </executions>
+      </plugin>
     </plugins>
   </build>
 
diff --git a/tomee/apache-tomee/src/patch/java/org/apache/catalina/authenticator/jaspic/CallbackHandlerImpl.java b/tomee/apache-tomee/src/patch/java/org/apache/catalina/authenticator/jaspic/CallbackHandlerImpl.java
new file mode 100644
index 0000000..45d6bf7
--- /dev/null
+++ b/tomee/apache-tomee/src/patch/java/org/apache/catalina/authenticator/jaspic/CallbackHandlerImpl.java
@@ -0,0 +1,158 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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.
+ */
+package org.apache.catalina.authenticator.jaspic;
+
+import org.apache.catalina.Contained;
+import org.apache.catalina.Container;
+import org.apache.catalina.realm.GenericPrincipal;
+import org.apache.juli.logging.Log;
+import org.apache.juli.logging.LogFactory;
+import org.apache.tomcat.util.res.StringManager;
+
+import javax.security.auth.Subject;
+import javax.security.auth.callback.Callback;
+import javax.security.auth.callback.CallbackHandler;
+import javax.security.auth.callback.UnsupportedCallbackException;
+
+import javax.security.auth.message.callback.CallerPrincipalCallback;
+import javax.security.auth.message.callback.GroupPrincipalCallback;
+import javax.security.auth.message.callback.PasswordValidationCallback;
+
+import java.io.IOException;
+import java.security.Principal;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.List;
+
+/**
+ * This is a clone of Tomcat default callback handler but with a better handling of the Generic Principals when more than
+ * one callback is used.
+ * <p>
+ * For instance https://github.com/apache/tomcat/blob/master/java/org/apache/catalina/authenticator/jaspic/CallbackHandlerImpl.java#L96
+ * keeps adding new Generic Principals even for the same name whereas the authenticator base
+ * https://github.com/apache/tomcat/blob/master/java/org/apache/catalina/authenticator/AuthenticatorBase.java#L956
+ * randomly picks the first one. So it results in random failures
+ * <p>
+ * See https://github.com/eclipse-ee4j/jakartaee-tck/issues/575
+ */
+public class CallbackHandlerImpl implements CallbackHandler, Contained {
+
+    private static final StringManager sm = StringManager.getManager(
+            org.apache.catalina.authenticator.jaspic.CallbackHandlerImpl.class);
+    private final Log log = LogFactory.getLog(org.apache.catalina.authenticator.jaspic.CallbackHandlerImpl.class); // must not be static
+
+    private Container container;
+
+
+    @Override
+    public void handle(Callback[] callbacks) throws IOException, UnsupportedCallbackException {
+
+        String name = null;
+        Principal principal = null;
+        Subject subject = null;
+        String[] groups = null;
+
+        if (callbacks != null) {
+            // Need to combine data from multiple callbacks so use this to hold
+            // the data
+            // Process the callbacks
+            for (Callback callback : callbacks) {
+                if (callback instanceof CallerPrincipalCallback) {
+                    CallerPrincipalCallback cpc = (CallerPrincipalCallback) callback;
+                    name = cpc.getName();
+                    principal = cpc.getPrincipal();
+                    subject = cpc.getSubject();
+                } else if (callback instanceof GroupPrincipalCallback) {
+                    GroupPrincipalCallback gpc = (GroupPrincipalCallback) callback;
+                    groups = gpc.getGroups();
+                } else if (callback instanceof PasswordValidationCallback) {
+                    if (container == null) {
+                        log.warn(sm.getString("callbackHandlerImpl.containerMissing", callback.getClass().getName()));
+                    } else if (container.getRealm() == null) {
+                        log.warn(sm.getString("callbackHandlerImpl.realmMissing",
+                                callback.getClass().getName(), container.getName()));
+                    } else {
+                        PasswordValidationCallback pvc = (PasswordValidationCallback) callback;
+                        principal = container.getRealm().authenticate(pvc.getUsername(),
+                                String.valueOf(pvc.getPassword()));
+                        subject = pvc.getSubject();
+                    }
+                } else {
+                    log.error(sm.getString("callbackHandlerImpl.jaspicCallbackMissing",
+                            callback.getClass().getName()));
+                }
+            }
+
+            // Create the GenericPrincipal
+            Principal gp = getPrincipal(principal, name, groups);
+            if (subject != null && gp != null) {
+
+                // merge if needed
+                String mergeName = gp.getName();
+                List<String> mergeRoles = new ArrayList<>(Arrays.asList(((GenericPrincipal) gp).getRoles()));
+                Principal mergePrincipal = ((GenericPrincipal) gp).getUserPrincipal();
+
+                for (Object oPrincipal : subject.getPrivateCredentials()) {
+                    if (!(oPrincipal instanceof GenericPrincipal)) {
+                        continue;
+                    }
+                    final GenericPrincipal privateCredential = (GenericPrincipal) oPrincipal;
+                    if (mergeName != null && mergeName.equals(privateCredential.getName())) {
+                        mergeRoles.addAll(Arrays.asList(privateCredential.getRoles()));
+                        subject.getPrivateCredentials().remove(oPrincipal);
+                    }
+                }
+
+                subject.getPrivateCredentials().add(new GenericPrincipal(mergeName, null, mergeRoles, mergePrincipal));
+            }
+        }
+    }
+
+    private Principal getPrincipal(Principal principal, String name, String[] groups) {
+        // If the Principal is cached in the session JASPIC may simply return it
+        if (principal instanceof GenericPrincipal) {
+            return principal;
+        }
+        if (name == null && principal != null) {
+            name = principal.getName();
+        }
+        if (name == null) {
+            return null;
+        }
+        List<String> roles;
+        if (groups == null || groups.length == 0) {
+            roles = Collections.emptyList();
+        } else {
+            roles = Arrays.asList(groups);
+        }
+
+        return new GenericPrincipal(name, null, roles, principal);
+    }
+
+    // Contained interface methods
+    @Override
+    public Container getContainer() {
+        return this.container;
+    }
+
+
+    @Override
+    public void setContainer(Container container) {
+        this.container = container;
+    }
+}