[java-shib-shared] branch main updated: IDP-2286 - Add equivalent of PasswordlessCookieManager from Duo plugin

Scott Cantor cantor.2 at osu.edu
Tue Mar 25 18:44:22 UTC 2025


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View the commit online:
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The following commit(s) were added to refs/heads/main by this push:
     new 0e231655 IDP-2286 - Add equivalent of PasswordlessCookieManager from Duo plugin
0e231655 is described below

commit 0e231655a6e2a86f7b36fde10b57fa0a6df2f43e
Author: Scott Cantor <cantor.2 at osu.edu>
AuthorDate: Tue Mar 25 14:44:19 2025 -0400

    IDP-2286 - Add equivalent of PasswordlessCookieManager from Duo plugin
    
    https://shibboleth.atlassian.net/browse/IDP-2286
    
    Add copy of Duo utility class to shared.
---
 .../shared/security/EncryptedCookieManager.java    | 235 +++++++++++++++++++++
 1 file changed, 235 insertions(+)

diff --git a/shib-security/src/main/java/net/shibboleth/shared/security/EncryptedCookieManager.java b/shib-security/src/main/java/net/shibboleth/shared/security/EncryptedCookieManager.java
new file mode 100644
index 00000000..f05d7a05
--- /dev/null
+++ b/shib-security/src/main/java/net/shibboleth/shared/security/EncryptedCookieManager.java
@@ -0,0 +1,235 @@
+/*
+ * Licensed 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 net.shibboleth.shared.security;
+
+import javax.annotation.Nonnull;
+import javax.annotation.Nullable;
+
+import org.slf4j.Logger;
+
+import com.google.common.net.UrlEscapers;
+
+import net.shibboleth.shared.annotation.constraint.NotEmpty;
+import net.shibboleth.shared.component.AbstractInitializableComponent;
+import net.shibboleth.shared.component.ComponentInitializationException;
+import net.shibboleth.shared.net.CookieManager;
+import net.shibboleth.shared.net.URISupport;
+import net.shibboleth.shared.primitive.LoggerFactory;
+import net.shibboleth.shared.primitive.StringSupport;
+
+/**
+ * Wrapper for managing a cookie encrypted with the {@link DataSealer} component.
+ * 
+ * <p>The component can be wired up without the necessary components, but then all operations do nothing.
+ * This is allowed for the case where deployers disable the {@link DataSealer} component, though very rare.</p>
+ *      
+ * @since 9.2.0
+ */
+public class EncryptedCookieManager extends AbstractInitializableComponent {
+
+    /** A negative signal to allow caching opt-out. */
+    @Nonnull @NotEmpty public static final String NEGATIVE_VALUE = "__NO";
+    
+    /** Class logger.*/
+    @Nonnull private final Logger log = LoggerFactory.getLogger(EncryptedCookieManager.class);
+    
+    /** Passwordless cookie name. */
+    @Nullable @NotEmpty private String cookieName;
+    
+    /** Optional cookie manager to use. */
+    @Nullable private CookieManager cookieManager;
+
+    /** Optional data sealer to use. */
+    @Nullable private DataSealer dataSealer;
+    
+    /** Flags whether the component is active or should no-op. */
+    private boolean active;
+    
+    /**
+     * Set cookie name to use.
+     * 
+     * @param name cookie name
+     */
+    public void setCookieName(@Nullable final String name) {
+        checkSetterPreconditions();
+
+        cookieName = StringSupport.trimOrNull(name);
+    }
+
+    /**
+     * Sets {@link CookieManager} to use.
+     * 
+     * @param manager cookie manager
+     */
+    public void setCookieManager(@Nullable final CookieManager manager) {
+        checkSetterPreconditions();
+        
+        cookieManager = manager;
+    }
+
+    /**
+     * Sets {@link DataSealer} to use.
+     * 
+     * @param sealer data sealer
+     */
+    public void setDataSealer(@Nullable final DataSealer sealer) {
+        checkSetterPreconditions();
+        
+        dataSealer = sealer;
+    }
+
+    /** {@inheritDoc} */
+    @Override
+    protected void doInitialize() throws ComponentInitializationException {
+        super.doInitialize();
+        
+        active = cookieName != null && cookieManager != null && dataSealer != null;
+    }
+    
+    /**
+     * Tests whether the cookie's value indicates a cached negative response.
+     * 
+     * @return true iff the input value corresponds to the "opt-out" constant
+     */
+    public boolean isOptOut() {
+        checkComponentActive();
+
+        if (!active) {
+            return false;
+        }
+        
+        assert cookieManager != null;
+        assert cookieName != null;
+        final String value = cookieManager.getCookieValue(cookieName, null);
+        
+        return NEGATIVE_VALUE.equals(value);
+    }
+    
+    /**
+     * Read back existing cookie and return the value embedded in it, if any.
+     * 
+     * <p>A null is returned in the event of various decoding errors or if the cookie
+     * contains the "negative" magic value.</p>
+     * 
+     * @return value from sealed cookie, or null
+     */
+    @Nullable @NotEmpty public String readCookie() {
+        checkComponentActive();
+        
+        if (!active) {
+            return null;
+        }
+        
+        assert cookieManager != null;
+        assert cookieName != null;
+        String wrapped = cookieManager.getCookieValue(cookieName, null);
+        if (wrapped == null) {
+            return null;
+        }
+        
+        if (NEGATIVE_VALUE.equals(wrapped)) {
+            return null;
+        }
+        
+        wrapped = URISupport.doURLDecode(wrapped);
+        if (wrapped == null) {
+            log.error("Error decoding unwrapped cookie value");
+            return null;
+        }
+        
+        try {
+            assert dataSealer != null;
+            return dataSealer.unwrap(wrapped);
+        } catch (final DataSealerException e) {
+            log.warn("Unable to unwrap sealed cookie", e);
+        }
+        
+        return null;
+    }
+    
+    /**
+     * Creates a fresh cookie for a given value (or a placeholder if null to indicate the negative).
+     * 
+     * @param value value or null
+     * 
+     * @return true iff the operation succeeded
+     */
+    public boolean writeCookie(@Nullable final String value) {
+        checkComponentActive();
+        
+        if (!active) {
+            return false;
+        }
+        
+        if (value == null || NEGATIVE_VALUE.equals(value)) {
+            assert cookieManager != null;
+            assert cookieName != null;
+            cookieManager.addCookie(cookieName, NEGATIVE_VALUE);
+            return true;
+        }
+        
+        try {
+            assert dataSealer != null;
+            String wrapped = dataSealer.wrap(value);
+            wrapped = UrlEscapers.urlFormParameterEscaper().escape(wrapped);
+            assert cookieManager != null;
+            assert cookieName != null;
+            assert wrapped != null;
+            cookieManager.addCookie(cookieName, wrapped);
+            return true;
+        } catch (final DataSealerException e) {
+            log.warn("Unable to wrap value for cookie", e);
+            return false;
+        }
+    }
+
+    /**
+     * For a non-negative cookie, this recreates the cookie using the current default key to ensure it can
+     * continue to be read.
+     * 
+     * @return true iff the operation succeeded
+     */
+    public boolean refreshCookie() {
+        checkComponentActive();
+
+        if (!active) {
+            return false;
+        }
+        
+        final String value = readCookie();
+        if (value != null) {
+            return writeCookie(value);
+        }
+        
+        return true;
+    }
+    
+    /**
+     * Unset the cookie.
+     */
+    public void clearCookie() {
+        checkComponentActive();
+
+        if (!active) {
+            return;
+        }
+
+        assert cookieManager != null;
+        assert cookieName != null;
+        cookieManager.unsetCookie(cookieName);
+    }
+    
+    
+}
\ No newline at end of file

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