1 files changed, 221 insertions, 0 deletions
diff --git a/cadi/core/src/main/java/org/onap/ccsdk/apps/cadi/lur/LocalLur.java b/cadi/core/src/main/java/org/onap/ccsdk/apps/cadi/lur/LocalLur.java
new file mode 100644
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--- /dev/null
+++ b/cadi/core/src/main/java/org/onap/ccsdk/apps/cadi/lur/LocalLur.java
@@ -0,0 +1,221 @@
+/**
+ * ============LICENSE_START====================================================
+ * org.onap.ccsdk
+ * ===========================================================================
+ * Copyright (c) 2023 AT&T Intellectual Property. All rights reserved.
+ * ===========================================================================
+ * 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.
+ * ============LICENSE_END====================================================
+ *
+ */
+
+package org.onap.ccsdk.apps.cadi.lur;
+
+import java.io.IOException;
+import java.security.Principal;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.TreeSet;
+
+import org.onap.ccsdk.apps.cadi.AbsUserCache;
+import org.onap.ccsdk.apps.cadi.Access;
+import org.onap.ccsdk.apps.cadi.CredVal;
+import org.onap.ccsdk.apps.cadi.Hash;
+import org.onap.ccsdk.apps.cadi.Lur;
+import org.onap.ccsdk.apps.cadi.Permission;
+import org.onap.ccsdk.apps.cadi.User;
+import org.onap.ccsdk.apps.cadi.Access.Level;
+import org.onap.ccsdk.apps.cadi.config.Config;
+
+/**
+ * An in-memory Lur that can be configured locally with User info via properties, similar to Tomcat-users.xml mechanisms.
+ *
+ * @author Jonathan
+ *
+ */
+public final class LocalLur extends AbsUserCache<LocalPermission> implements Lur, CredVal {
+    public static final String SEMI = "\\s*;\\s*";
+    public static final String COLON = "\\s*:\\s*";
+    public static final String COMMA = "\\s*,\\s*";
+    public static final String PERCENT = "\\s*%\\s*";
+
+    // Use to quickly determine whether any given group is supported by this LUR
+    private final Set<String> supportingGroups;
+    private String supportedRealm;
+
+    /**
+     * Construct by building structure, see "build"
+     *
+     * Reconstruct with "build"
+     *
+     * @param userProperties
+     * @param groupProperties
+     * @param decryptor
+     * @throws IOException
+     */
+    public LocalLur(Access access, String userProperties, String groupProperties) throws IOException {
+        super(access, 0, 0, Integer.MAX_VALUE);  // data doesn't expire
+        supportedRealm = access.getProperty(Config.BASIC_REALM, "localized");
+        supportingGroups = new TreeSet<>();
+
+        if (userProperties != null) {
+            parseUserProperties(userProperties);
+        }
+
+        if (groupProperties != null) {
+            parseGroupProperties(groupProperties);
+        }
+    }
+
+    public boolean validate(String user, CredVal.Type type, byte[] cred, Object state) {
+        if (cred == null) {
+            return false;
+        }
+        User<LocalPermission> usr = getUser(user, cred);
+        if (usr == null) {
+            return false;
+        }
+        // covers null as well as bad pass
+        if ((type == Type.PASSWORD) && (usr.principal instanceof ConfigPrincipal)) {;
+            return Hash.isEqual(cred, ((ConfigPrincipal)usr.principal).getCred());
+        }
+        return false;
+    }
+
+    //    @Override
+    public boolean fish(Principal bait, Permission ... pond) {
+        if (pond == null) {
+            return false;
+        }
+        for (Permission p : pond) {
+            if (handles(bait) && p instanceof LocalPermission) { // local Users only have LocalPermissions
+                User<LocalPermission> user = getUser(bait);
+                if (user != null) {
+                    return user.contains((LocalPermission)p);
+                }
+            }
+        }
+        return false;
+    }
+
+    // We do not want to expose the actual Group, so make a copy.
+    public void fishAll(Principal bait, List<Permission> perms) {
+        if (handles(bait)) {
+            User<LocalPermission> user = getUser(bait);
+            if (user != null) {
+                user.copyPermsTo(perms);
+            }
+        }
+    }
+
+    /* (non-Javadoc)
+     * @see org.onap.ccsdk.apps.cadi.Lur#handles(java.security.Principal)
+     */
+    @Override
+    public boolean handles(Principal principal) {
+        if (principal == null) {
+            return false;
+        }
+        return principal.getName().endsWith(supportedRealm);
+    }
+
+    @Override
+    public boolean handlesExclusively(Permission ... pond) {
+        boolean rv = false;
+        for (Permission p : pond) {
+            if (rv=supportingGroups.contains(p.getKey())) {
+                break;
+            }
+        }
+        return rv;
+    }
+
+    /* (non-Javadoc)
+     * @see org.onap.ccsdk.apps.cadi.Lur#createPerm(java.lang.String)
+     */
+    @Override
+    public Permission createPerm(String p) {
+        return new LocalPermission(p);
+    }
+
+    private void parseUserProperties(String userProperties) throws IOException {
+        // For each User name...
+        for (String userProperty : userProperties.trim().split(SEMI)) {
+            String[] userInfo = userProperty.split(COLON, 2);
+            String[] userPass = userInfo[0].split(PERCENT, 2);
+            String userName = userPass[0];
+
+            byte[] password = null;
+            if (userPass.length > 1) {
+                password = access.decrypt(userPass[1], true).getBytes();
+                if (userName.indexOf('@') < 0) {
+                    userName += '@' + access.getProperty(Config.AAF_DEFAULT_REALM, Config.getDefaultRealm());
+                }
+            }
+            User<LocalPermission> usr;
+            usr = new User<>(new ConfigPrincipal(userName, password));
+            addUser(usr);
+            access.log(Level.INIT, "Local User:", usr.principal);
+
+            if (userInfo.length > 1) {
+                Map<String, Permission> newMap = usr.newMap();
+                for (String group : userInfo[1].split(COMMA)) {
+                    supportingGroups.add(group);
+                    usr.add(newMap, new LocalPermission(group));
+                }
+                usr.setMap(newMap);
+            }
+        }
+    }
+
+
+    private void parseGroupProperties(String groupProperties) throws IOException {
+        // For each Group name...
+        for (String group : groupProperties.trim().split(SEMI)) {
+            String[] groups = group.split(COLON, 2);
+            if (groups.length <= 1) {
+                continue;
+            }
+            supportingGroups.add(groups[0]);
+            LocalPermission p = new LocalPermission(groups[0]);
+
+            // Add all users (known by comma separators)
+            for (String groupMember : groups[1].split(COMMA)) {
+                // look for password, if so, put in passMap
+                String[] userPass = groupMember.split(PERCENT, 2);
+                String userName = userPass[0];
+                if (userName.indexOf('@') < 0) {
+                    userName += '@' + access.getProperty(Config.AAF_DEFAULT_REALM, Config.getDefaultRealm());
+                }
+
+                User<LocalPermission> usr = null;
+                byte[] password = null;
+                if (userPass.length > 1) {
+                    password = access.decrypt(userPass[1], true).getBytes();
+                }
+                usr = getUser(userName, password);
+                if (usr == null) {
+                    usr = new User<>(new ConfigPrincipal(userName, password));
+                    addUser(usr);
+                }
+                else {
+                    usr.principal = new ConfigPrincipal(userName, password);
+                }
+                usr.add(p);
+                access.log(Level.INIT, "Local User:", usr.principal);
+            }
+        }
+    }
+
+}