Moving Shiro modules to cadi repo

[aaf/cadi.git] / shiro / src / main / java / org / onap / aaf / cadi / shiro / AAFRealm.java

diff --git a/shiro/src/main/java/org/onap/aaf/cadi/shiro/AAFRealm.java b/shiro/src/main/java/org/onap/aaf/cadi/shiro/AAFRealm.java
new file mode 100644 (file)
index 0000000..006547a
--- /dev/null
+++ b/shiro/src/main/java/org/onap/aaf/cadi/shiro/AAFRealm.java
@@ -0,0 +1,142 @@
+/**
+ * ============LICENSE_START====================================================
+ * org.onap.aaf
+ * ===========================================================================
+ * Copyright (c) 2018 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.aaf.cadi.shiro;
+
+import java.io.IOException;
+import java.security.Principal;
+import java.util.ArrayList;
+import java.util.HashSet;
+import java.util.List;
+
+import org.apache.shiro.authc.AuthenticationException;
+import org.apache.shiro.authc.AuthenticationInfo;
+import org.apache.shiro.authc.AuthenticationToken;
+import org.apache.shiro.authc.UsernamePasswordToken;
+import org.apache.shiro.realm.AuthorizingRealm;
+import org.apache.shiro.subject.PrincipalCollection;
+import org.onap.aaf.cadi.Access.Level;
+import org.onap.aaf.cadi.CadiException;
+import org.onap.aaf.cadi.LocatorException;
+import org.onap.aaf.cadi.Permission;
+import org.onap.aaf.cadi.PropAccess;
+import org.onap.aaf.cadi.aaf.v2_0.AAFAuthn;
+import org.onap.aaf.cadi.aaf.v2_0.AAFCon;
+import org.onap.aaf.cadi.aaf.v2_0.AAFLurPerm;
+import org.onap.aaf.cadi.config.Config;
+import org.onap.aaf.misc.env.APIException;
+
+public class AAFRealm extends AuthorizingRealm {
+       public static final String AAF_REALM = "AAFRealm";
+       
+       private PropAccess access;
+       private AAFCon<?> acon;
+       private AAFAuthn<?> authn;
+       private HashSet<Class<? extends AuthenticationToken>> supports;
+       private AAFLurPerm authz;
+       
+
+       /**
+        * 
+        * There appears to be no configuration objects or references available for CADI to start with.
+        *  
+        */
+       public AAFRealm () {
+               access = new PropAccess(); // pick up cadi_prop_files from VM_Args
+               String cadi_prop_files = access.getProperty(Config.CADI_PROP_FILES);
+               if(cadi_prop_files==null) {
+                       String msg = Config.CADI_PROP_FILES + " in VM Args is required to initialize AAFRealm.";
+                       access.log(Level.INIT,msg);
+                       throw new RuntimeException(msg);
+               } else {
+                       try {
+                               acon = AAFCon.newInstance(access);
+                               authn = acon.newAuthn();
+                               authz = acon.newLur(authn);
+                       } catch (APIException | CadiException | LocatorException e) {
+                               String msg = "Cannot initiate AAFRealm";
+                               access.log(Level.INIT,msg,e.getMessage());
+                               throw new RuntimeException(msg,e);
+                       }
+               }
+               supports = new HashSet<Class<? extends AuthenticationToken>>();
+               supports.add(UsernamePasswordToken.class);
+       }
+
+       @Override
+       protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken token) throws AuthenticationException {
+               access.log(Level.DEBUG, "AAFRealm.doGetAuthenticationInfo",token);
+               
+               final UsernamePasswordToken upt = (UsernamePasswordToken)token;
+               String password=new String(upt.getPassword());
+               String err;
+               try {
+                       err = authn.validate(upt.getUsername(),password);
+               } catch (IOException|CadiException e) {
+                       err = "Credential cannot be validated";
+                       access.log(e, err);
+               }
+               
+               if(err != null) {
+                       access.log(Level.DEBUG, err);
+                       throw new AuthenticationException(err);
+               }
+
+           return new AAFAuthenticationInfo(
+                       access,
+                       upt.getUsername(),
+                       password
+           );
+       }
+
+       @Override
+       protected void assertCredentialsMatch(AuthenticationToken atoken, AuthenticationInfo ai)throws AuthenticationException {
+               if(ai instanceof AAFAuthenticationInfo) {
+                       if(!((AAFAuthenticationInfo)ai).matches(atoken)) {
+                               throw new AuthenticationException("Credentials do not match");
+                       }
+               } else {
+                       throw new AuthenticationException("AuthenticationInfo is not an AAFAuthenticationInfo");
+               }
+       }
+
+
+       @Override
+       protected AAFAuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principals) {
+               access.log(Level.DEBUG, "AAFRealm.doGetAuthenthorizationInfo");
+               Principal bait = (Principal)principals.getPrimaryPrincipal();
+               List<Permission> pond = new ArrayList<Permission>();
+               authz.fishAll(bait,pond);
+               
+               return new AAFAuthorizationInfo(access,bait,pond);
+       
+       }
+
+       @Override
+       public boolean supports(AuthenticationToken token) {
+               return supports.contains(token.getClass());
+       }
+
+       @Override
+       public String getName() {
+               return AAF_REALM;
+       }
+
+}