UserAdminUtils.java

   1 package org.argeo.cms.util;
   2
   3 import java.util.List;
   4
   5 import javax.naming.InvalidNameException;
   6 import javax.naming.ldap.LdapName;
   7 import javax.naming.ldap.Rdn;
   8
   9 import org.argeo.cms.CmsException;
  10 import org.argeo.cms.auth.CurrentUser;
  11 import org.argeo.eclipse.ui.EclipseUiUtils;
  12 import org.argeo.naming.LdapAttrs;
  13 import org.argeo.node.NodeConstants;
  14 import org.osgi.service.useradmin.Role;
  15 import org.osgi.service.useradmin.User;
  16 import org.osgi.service.useradmin.UserAdmin;
  17
  18 /** Centralise common patterns to manage users with a {@link UserAdmin} */
  19 public class UserAdminUtils {
  20
  21         // CURRENTUSER HELPERS
  22         /** Checks if current user is the same as the passed one */
  23         public static boolean isCurrentUser(User user) {
  24                 String userUsername = getProperty(user, LdapAttrs.DN);
  25                 LdapName userLdapName = getLdapName(userUsername);
  26                 LdapName selfUserName = getCurrentUserLdapName();
  27                 return userLdapName.equals(selfUserName);
  28         }
  29
  30         /** Retrieves the current logged-in {@link User} */
  31         public static User getCurrentUser(UserAdmin userAdmin) {
  32                 return (User) userAdmin.getRole(CurrentUser.getUsername());
  33         }
  34
  35         /** Retrieves the current logged-in user {@link LdapName} */
  36         public final static LdapName getCurrentUserLdapName() {
  37                 String name = CurrentUser.getUsername();
  38                 return getLdapName(name);
  39         }
  40
  41         /** Retrieves the current logged-in user mail */
  42         public static String getCurrentUserMail(UserAdmin userAdmin) {
  43                 String username = CurrentUser.getUsername();
  44                 return getUserMail(userAdmin, username);
  45         }
  46
  47         /** Retrieves the current logged-in user common name */
  48         public final static String getCommonName(User user) {
  49                 return getProperty(user, LdapAttrs.cn.name());
  50         }
  51
  52         // OTHER USERS HELPERS
  53         /**
  54          * Retrieves the local id of a user or group, that is respectively the uid
  55          * or cn of the passed dn with no {@link UserAdmin}
  56          */
  57         public static String getUserLocalId(String dn) {
  58                 LdapName ldapName = getLdapName(dn);
  59                 Rdn last = ldapName.getRdn(ldapName.size() - 1);
  60                 if (last.getType().toLowerCase().equals(LdapAttrs.uid.name())
  61                                 || last.getType().toLowerCase().equals(LdapAttrs.cn.name()))
  62                         return (String) last.getValue();
  63                 else
  64                         throw new CmsException("Cannot retrieve user local id, non valid dn: " + dn);
  65         }
  66
  67         /**
  68          * Returns the local username if no user with this dn is found or if the
  69          * found user has no defined display name
  70          */
  71         public static String getUserDisplayName(UserAdmin userAdmin, String dn) {
  72                 Role user = userAdmin.getRole(dn);
  73                 String dName;
  74                 if (user == null)
  75                         dName = getUserLocalId(dn);
  76                 else {
  77                         dName = getProperty(user, LdapAttrs.displayName.name());
  78                         if (EclipseUiUtils.isEmpty(dName))
  79                                 dName = getProperty(user, LdapAttrs.cn.name());
  80                         if (EclipseUiUtils.isEmpty(dName))
  81                                 dName = getUserLocalId(dn);
  82                 }
  83                 return dName;
  84         }
  85
  86         /**
  87          * Returns null if no user with this dn is found or if the found user has no
  88          * defined mail
  89          */
  90         public static String getUserMail(UserAdmin userAdmin, String dn) {
  91                 Role user = userAdmin.getRole(dn);
  92                 if (user == null)
  93                         return null;
  94                 else
  95                         return getProperty(user, LdapAttrs.mail.name());
  96         }
  97
  98         // LDAP NAMES HELPERS
  99         /**
 100          * Easily retrieves one of the {@link Role}'s property or an empty String if
 101          * the requested property is not defined
 102          */
 103         public final static String getProperty(Role role, String key) {
 104                 Object obj = role.getProperties().get(key);
 105                 if (obj != null)
 106                         return (String) obj;
 107                 else
 108                         return "";
 109         }
 110
 111         /**
 112          * Simply retrieves a LDAP name from a {@link LdapAttrs.DN} with no
 113          * exception
 114          */
 115         private static LdapName getLdapName(String dn) {
 116                 try {
 117                         return new LdapName(dn);
 118                 } catch (InvalidNameException e) {
 119                         throw new CmsException("Cannot parse LDAP name " + dn, e);
 120                 }
 121         }
 122
 123         /** Simply retrieves a display name of the relevant domain */
 124         public final static String getDomainName(User user) {
 125                 String dn = user.getName();
 126                 if (dn.endsWith(NodeConstants.ROLES_BASEDN))
 127                         return "System roles";
 128                 try {
 129                         LdapName name = new LdapName(dn);
 130                         List<Rdn> rdns = name.getRdns();
 131                         String dname = null;
 132                         int i = 0;
 133                         loop: while (i < rdns.size()) {
 134                                 Rdn currrRdn = rdns.get(i);
 135                                 if (!LdapAttrs.dc.name().equals(currrRdn.getType()))
 136                                         break loop;
 137                                 else {
 138                                         String currVal = (String) currrRdn.getValue();
 139                                         dname = dname == null ? currVal : currVal + "." + dname;
 140                                 }
 141                                 i++;
 142                         }
 143                         return dname;
 144                 } catch (InvalidNameException e) {
 145                         throw new CmsException("Unable to get domain name for " + dn, e);
 146                 }
 147         }
 148
 149         // VARIOUS HELPERS
 150         public final static String buildDefaultCn(String firstName, String lastName) {
 151                 return (firstName.trim() + " " + lastName.trim() + " ").trim();
 152         }
 153 }