New project conventions

[lgpl/argeo-commons.git] / org.argeo.security.core / src / org / argeo / security / core / OsAuthenticationProvider.java

diff --git a/org.argeo.security.core/src/org/argeo/security/core/OsAuthenticationProvider.java b/org.argeo.security.core/src/org/argeo/security/core/OsAuthenticationProvider.java
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+++ b/org.argeo.security.core/src/org/argeo/security/core/OsAuthenticationProvider.java
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+/*
+ * Copyright (C) 2007-2012 Argeo GmbH
+ *
+ * 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 org.argeo.security.core;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.argeo.security.OsAuthenticationToken;
+import org.springframework.security.Authentication;
+import org.springframework.security.AuthenticationException;
+import org.springframework.security.GrantedAuthority;
+import org.springframework.security.GrantedAuthorityImpl;
+import org.springframework.security.providers.AuthenticationProvider;
+
+/**
+ * Validates an OS authentication. The id is that it will always be
+ * authenticated since we are always runnign within an OS, but the fact that the
+ * {@link Authentication} works properly depends on the proper OS login module
+ * having been called as well. TODO make it more configurable (base roles, is
+ * admin)
+ */
+public class OsAuthenticationProvider implements AuthenticationProvider {
+       final static String osUserRole = "ROLE_OS_USER";
+       final static String userRole = "ROLE_USER";
+       final static String adminRole = "ROLE_ADMIN";
+
+       final static Boolean isAdmin = true;
+
+       public Authentication authenticate(Authentication authentication)
+                       throws AuthenticationException {
+               return new OsAuthenticationToken(getBaseAuthorities());
+       }
+
+       public static GrantedAuthority[] getBaseAuthorities() {
+               List<GrantedAuthority> auths = new ArrayList<GrantedAuthority>();
+               auths.add(new GrantedAuthorityImpl(osUserRole));
+               auths.add(new GrantedAuthorityImpl(userRole));
+               if (isAdmin)
+                       auths.add(new GrantedAuthorityImpl(adminRole));
+               return auths.toArray(new GrantedAuthority[auths.size()]);
+       }
+
+       @SuppressWarnings("rawtypes")
+       public boolean supports(Class authentication) {
+               return OsAuthenticationToken.class.isAssignableFrom(authentication);
+       }
+
+}