[java-identity-provider] 03/04: IDP-1456 Add a ScopesContainer class

Rod Widdowson rdw at steadingsoftware.com
Sat May 25 11:29:24 EDT 2019


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commit 6ba0c2da96a1664fe8c6bf0db40a00f360f50d1c
Author: Rod Widdowson <rdw at steadingsoftware.com>
AuthorDate: Sat May 25 14:29:49 2019 +0100

    IDP-1456 Add a ScopesContainer class
    
    https://issues.shibboleth.net/jira/browse/IDP-1456
---
 .../idp/saml/metadata/ScopesContainer.java         | 101 +++++++++++++++++++++
 .../idp/saml/metadata/ScopesContainerTest.java     |  75 +++++++++++++++
 2 files changed, 176 insertions(+)

diff --git a/idp-saml-api/src/main/java/net/shibboleth/idp/saml/metadata/ScopesContainer.java b/idp-saml-api/src/main/java/net/shibboleth/idp/saml/metadata/ScopesContainer.java
new file mode 100644
index 0000000..a043c79
--- /dev/null
+++ b/idp-saml-api/src/main/java/net/shibboleth/idp/saml/metadata/ScopesContainer.java
@@ -0,0 +1,101 @@
+/*
+ * Licensed to the University Corporation for Advanced Internet Development,
+ * Inc. (UCAID) under one or more contributor license agreements.  See the
+ * NOTICE file distributed with this work for additional information regarding
+ * copyright ownership. The UCAID 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 net.shibboleth.idp.saml.metadata;
+
+import java.util.Collections;
+import java.util.List;
+import java.util.Set;
+import java.util.function.Predicate;
+import java.util.regex.Pattern;
+import java.util.stream.Collectors;
+
+import javax.annotation.Nonnull;
+import javax.annotation.Nullable;
+
+import org.opensaml.saml.saml2.metadata.AttributeAuthorityDescriptor;
+import org.opensaml.saml.saml2.metadata.EntityDescriptor;
+import org.opensaml.saml.saml2.metadata.IDPSSODescriptor;
+
+import net.shibboleth.idp.saml.xmlobject.Scope;
+import net.shibboleth.utilities.java.support.annotation.constraint.NotEmpty;
+import net.shibboleth.utilities.java.support.logic.Constraint;
+import net.shibboleth.utilities.java.support.primitive.StringSupport;
+
+/**
+ * A container for all the {@link Scope} elements (attached to either a 
+ * {@link EntityDescriptor}, {@link IDPSSODescriptor} or 
+ * {@link AttributeAuthorityDescriptor}). 
+ */
+public class ScopesContainer {
+
+    /** The (non Regexp) scopes. */
+    @Nonnull private Set<String> simpleScopes = Collections.EMPTY_SET;
+    
+    /** The Regexp scopes. */
+    @Nonnull private List<Predicate<String>> regexpScopes = Collections.EMPTY_LIST;
+    
+    /** Sets the non-regexp Scopes.
+     * <br> We force the input to be a set so as to enforce no duplicates and any performance hit as a result.
+     * @param scopes what to set. 
+     */
+    public void setSimpleScopes(@Nullable final Set<String> scopes) {
+        if (scopes == null || scopes.isEmpty()) {
+            simpleScopes = Collections.EMPTY_SET;
+        } else {
+            simpleScopes = scopes.stream().
+                    map(StringSupport::trimOrNull).
+                    filter(e -> null != e).
+                    collect(Collectors.toSet());
+        }
+    }
+    
+    /** Sets the regexp scopes.
+     * <br> We force the input to be a set so as to enforce no duplicates and any performance hit as a result.
+     * @param scopes what to set.
+     */
+    public void setRegexpScopes(@Nullable final Set<String> scopes) {
+        if (scopes == null || scopes.isEmpty()) {
+            regexpScopes = Collections.EMPTY_LIST;
+        } else {
+            regexpScopes = scopes.stream().
+                    filter(e -> null != e).
+                    map(Pattern::compile).
+                    map(Pattern::asMatchPredicate).
+                    collect(Collectors.toList());   
+        }
+    }
+    
+    /** Does the provided string match the scopes for this XMLObject?.
+     * <br/> We test against the non regexp scopes for the sake of performance.
+     * @param scope what to test.
+     * @return whether it matches any of the scopes.
+     */
+    public boolean matchesScope(@Nonnull @NotEmpty final String scope) {
+        final String strippedScope = StringSupport.trimOrNull(scope);
+        Constraint.isNotNull(strippedScope, "ScopesContainer#matchesScope() requires nonnul or empty Scope");
+        if (simpleScopes.contains(strippedScope)) {
+            return true;
+        }
+        for (final Predicate<String> p: regexpScopes) {
+            if (p.test(strippedScope)) {
+                return true;
+            }
+        }
+        return false;
+    }
+}
diff --git a/idp-saml-api/src/test/java/net/shibboleth/idp/saml/metadata/ScopesContainerTest.java b/idp-saml-api/src/test/java/net/shibboleth/idp/saml/metadata/ScopesContainerTest.java
new file mode 100644
index 0000000..3a0ea26
--- /dev/null
+++ b/idp-saml-api/src/test/java/net/shibboleth/idp/saml/metadata/ScopesContainerTest.java
@@ -0,0 +1,75 @@
+/*
+ * Licensed to the University Corporation for Advanced Internet Development,
+ * Inc. (UCAID) under one or more contributor license agreements.  See the
+ * NOTICE file distributed with this work for additional information regarding
+ * copyright ownership. The UCAID 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 net.shibboleth.idp.saml.metadata;
+
+import static org.testng.Assert.assertFalse;
+import static org.testng.Assert.assertTrue;
+
+import java.util.Collections;
+import java.util.Set;
+
+import org.testng.annotations.Test;
+
+/**
+ * Tests for the {@link ScopesContainer}.
+ */
+public class ScopesContainerTest {
+
+    @Test public void empty() {
+        final ScopesContainer scopes = new ScopesContainer();
+        assertFalse(scopes.matchesScope("foo"));
+        scopes.setRegexpScopes(null);
+        scopes.setSimpleScopes(Collections.EMPTY_SET);
+        assertFalse(scopes.matchesScope("foo"));
+        scopes.setRegexpScopes(Set.of(""));
+        scopes.setSimpleScopes(Collections.singleton((String)null));
+        assertFalse(scopes.matchesScope("foo"));
+    }
+    
+    @Test public void stringOnly() {
+        final ScopesContainer scopes = new ScopesContainer();
+        scopes.setSimpleScopes(Set.of("foo", "bar", "james"));
+        assertFalse(scopes.matchesScope("jimmy"));
+        assertTrue(scopes.matchesScope("foo"));
+        assertTrue(scopes.matchesScope("bar"));
+        assertTrue(scopes.matchesScope("james"));
+    }
+    
+    @Test public void regexpOnly() {
+        final ScopesContainer scopes = new ScopesContainer();
+        scopes.setRegexpScopes(Set.of("^.*fo.*b$"));
+        assertFalse(scopes.matchesScope("jimmy"));
+        assertFalse(scopes.matchesScope("foo"));
+        assertFalse(scopes.matchesScope("foobd"));
+        assertTrue(scopes.matchesScope("prefoob"));
+        assertTrue(scopes.matchesScope("prefooltfb"));
+    }
+
+    @Test public void both() {
+        final ScopesContainer scopes = new ScopesContainer();
+        scopes.setRegexpScopes(Set.of("^.*fo.*b$"));
+        scopes.setSimpleScopes(Set.of("foo", "bar", "james"));
+        assertFalse(scopes.matchesScope("jimmy"));
+        assertTrue(scopes.matchesScope("james"));
+        assertTrue(scopes.matchesScope("foo"));
+        assertFalse(scopes.matchesScope("foobd"));
+        assertTrue(scopes.matchesScope("prefoob"));
+        assertTrue(scopes.matchesScope("prefooltfb"));
+    }
+
+}

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