Introduce JcrUserDetails LDAP context mapper

git-svn-id: https://svn.argeo.org/commons/trunk@4918 4cfe0d0a-d680-48aa-b62c-e0a02a3f76cc

diff --git a/security/runtime/org.argeo.security.ldap/src/main/java/org/argeo/security/ldap/jcr/JcrUserDetailsContextMapper.java b/security/runtime/org.argeo.security.ldap/src/main/java/org/argeo/security/ldap/jcr/JcrUserDetailsContextMapper.java
new file mode 100644 (file)
index 0000000..9476658
--- /dev/null
+++ b/security/runtime/org.argeo.security.ldap/src/main/java/org/argeo/security/ldap/jcr/JcrUserDetailsContextMapper.java
@@ -0,0 +1,79 @@
+package org.argeo.security.ldap.jcr;
+
+import java.util.UUID;
+
+import javax.jcr.Node;
+import javax.jcr.Repository;
+import javax.jcr.RepositoryException;
+import javax.jcr.Session;
+
+import org.argeo.ArgeoException;
+import org.argeo.jcr.ArgeoNames;
+import org.argeo.jcr.JcrUtils;
+import org.argeo.security.jcr.JcrUserDetails;
+import org.springframework.ldap.core.DirContextAdapter;
+import org.springframework.ldap.core.DirContextOperations;
+import org.springframework.security.GrantedAuthority;
+import org.springframework.security.userdetails.UserDetails;
+import org.springframework.security.userdetails.ldap.UserDetailsContextMapper;
+
+/** Read only mapping from LDAP to user details */
+public class JcrUserDetailsContextMapper implements UserDetailsContextMapper,
+               ArgeoNames {
+       /** Admin session on the security workspace */
+       private Session securitySession;
+       private Repository repository;
+       private String securityWorkspace = "security";
+
+       public void init() {
+               try {
+                       securitySession = repository.login(securityWorkspace);
+               } catch (RepositoryException e) {
+                       JcrUtils.logoutQuietly(securitySession);
+                       throw new ArgeoException(
+                                       "Cannot initialize LDAP/JCR user details context mapper", e);
+               }
+       }
+
+       public void destroy() {
+               JcrUtils.logoutQuietly(securitySession);
+       }
+
+       /** Called during authentication in order to retrieve user details */
+       public UserDetails mapUserFromContext(final DirContextOperations ctx,
+                       final String username, GrantedAuthority[] authorities) {
+               if (ctx == null)
+                       throw new ArgeoException("No LDAP information for user " + username);
+               Node userHome = JcrUtils.getUserHome(securitySession, username);
+               if (userHome == null)
+                       throw new ArgeoException("No JCR information for user " + username);
+
+               // password
+               // SortedSet<?> passwordAttributes = ctx
+               // .getAttributeSortedStringSet(passwordAttribute);
+               // String password;
+               // if (passwordAttributes == null || passwordAttributes.size() == 0) {
+               // throw new ArgeoException("No password found for user " + username);
+               // } else {
+               // byte[] arr = (byte[]) passwordAttributes.first();
+               // password = new String(arr);
+               // // erase password
+               // Arrays.fill(arr, (byte) 0);
+               // }
+
+               try {
+                       // we don't have access to password, so let's not pretend
+                       String password = UUID.randomUUID().toString();
+                       return new JcrUserDetails(userHome.getNode(ARGEO_PROFILE),
+                                       password, authorities);
+               } catch (RepositoryException e) {
+                       throw new ArgeoException("Cannot retrieve user details for "
+                                       + username, e);
+               }
+       }
+
+       public void mapUserToContext(UserDetails user, final DirContextAdapter ctx) {
+               throw new UnsupportedOperationException("LDAP access is read-only");
+       }
+
+}