package org.argeo.osgi.useradmin;
+import java.io.UnsupportedEncodingException;
+import java.nio.ByteBuffer;
+import java.nio.CharBuffer;
+import java.nio.charset.Charset;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Base64;
+import java.util.Collections;
import java.util.Dictionary;
-import java.util.Hashtable;
+import java.util.Enumeration;
+import java.util.HashSet;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Set;
+import javax.naming.NamingEnumeration;
+import javax.naming.NamingException;
+import javax.naming.directory.Attribute;
import javax.naming.directory.Attributes;
+import javax.naming.directory.BasicAttribute;
import javax.naming.ldap.LdapName;
-import org.osgi.service.useradmin.User;
-import org.osgi.service.useradmin.UserAdmin;
+/** Directory user implementation */
+class LdifUser implements DirectoryUser {
+ private final AbstractUserDirectory userAdmin;
-class LdifUser implements User {
private final LdapName dn;
- private final Attributes attributes;
- LdifUser(LdapName dn, Attributes attributes) {
+ private final boolean frozen;
+ private Attributes publishedAttributes;
+
+ private final AttributeDictionary properties;
+ private final AttributeDictionary credentials;
+
+ LdifUser(AbstractUserDirectory userAdmin, LdapName dn, Attributes attributes) {
+ this(userAdmin, dn, attributes, false);
+ }
+
+ private LdifUser(AbstractUserDirectory userAdmin, LdapName dn, Attributes attributes, boolean frozen) {
+ this.userAdmin = userAdmin;
this.dn = dn;
- this.attributes = attributes;
+ this.publishedAttributes = attributes;
+ properties = new AttributeDictionary(false);
+ credentials = new AttributeDictionary(true);
+ this.frozen = frozen;
}
@Override
@Override
public Dictionary<String, Object> getProperties() {
- if (attributes == null)
- throw new ArgeoUserAdminException(
- "Must be loaded from user admin service");
- return new AttributeDictionary(attributes);
+ return properties;
}
@Override
public Dictionary<String, Object> getCredentials() {
- // TODO Auto-generated method stub
- return null;
+ return credentials;
}
@Override
public boolean hasCredential(String key, Object value) {
- // TODO Auto-generated method stub
+ if (key == null) {
+ // TODO check other sources (like PKCS12)
+ char[] password = toChars(value);
+ byte[] hashedPassword = hash(password);
+ return hasCredential(LdifName.userPassword.name(), hashedPassword);
+ }
+
+ Object storedValue = getCredentials().get(key);
+ if (storedValue == null || value == null)
+ return false;
+ if (!(value instanceof String || value instanceof byte[]))
+ return false;
+ if (storedValue instanceof String && value instanceof String)
+ return storedValue.equals(value);
+ if (storedValue instanceof byte[] && value instanceof byte[])
+ return Arrays.equals((byte[]) storedValue, (byte[]) value);
return false;
}
- protected LdapName getDn() {
+ /** Hash and clear the password */
+ private byte[] hash(char[] password) {
+ byte[] hashedPassword = ("{SHA}" + Base64.getEncoder().encodeToString(DigestUtils.sha1(toBytes(password))))
+ .getBytes();
+ Arrays.fill(password, '\u0000');
+ return hashedPassword;
+ }
+
+ private byte[] toBytes(char[] chars) {
+ CharBuffer charBuffer = CharBuffer.wrap(chars);
+ ByteBuffer byteBuffer = Charset.forName("UTF-8").encode(charBuffer);
+ byte[] bytes = Arrays.copyOfRange(byteBuffer.array(), byteBuffer.position(), byteBuffer.limit());
+ Arrays.fill(charBuffer.array(), '\u0000'); // clear sensitive data
+ Arrays.fill(byteBuffer.array(), (byte) 0); // clear sensitive data
+ return bytes;
+ }
+
+ private char[] toChars(Object obj) {
+ if (obj instanceof char[])
+ return (char[]) obj;
+ if (!(obj instanceof byte[]))
+ throw new IllegalArgumentException(obj.getClass() + " is not a byte array");
+ ByteBuffer fromBuffer = ByteBuffer.wrap((byte[]) obj);
+ CharBuffer toBuffer = Charset.forName("UTF-8").decode(fromBuffer);
+ char[] res = Arrays.copyOfRange(toBuffer.array(), toBuffer.position(), toBuffer.limit());
+ Arrays.fill(fromBuffer.array(), (byte) 0); // clear sensitive data
+ Arrays.fill((byte[]) obj, (byte) 0); // clear sensitive data
+ Arrays.fill(toBuffer.array(), '\u0000'); // clear sensitive data
+ return res;
+ }
+
+ @Override
+ public LdapName getDn() {
return dn;
}
- protected Attributes getAttributes() {
- return attributes;
+ @Override
+ public synchronized Attributes getAttributes() {
+ return isEditing() ? getModifiedAttributes() : publishedAttributes;
+ }
+
+ /** Should only be called from working copy thread. */
+ private synchronized Attributes getModifiedAttributes() {
+ assert getWc() != null;
+ return getWc().getAttributes(getDn());
+ }
+
+ protected synchronized boolean isEditing() {
+ return getWc() != null && getModifiedAttributes() != null;
+ }
+
+ private synchronized UserDirectoryWorkingCopy getWc() {
+ return userAdmin.getWorkingCopy();
+ }
+
+ protected synchronized void startEditing() {
+ if (frozen)
+ throw new UserDirectoryException("Cannot edit frozen view");
+ if (getUserAdmin().isReadOnly())
+ throw new UserDirectoryException("User directory is read-only");
+ assert getModifiedAttributes() == null;
+ getWc().startEditing(this);
+ // modifiedAttributes = (Attributes) publishedAttributes.clone();
+ }
+
+ public synchronized void publishAttributes(Attributes modifiedAttributes) {
+ publishedAttributes = modifiedAttributes;
+ }
+
+ public DirectoryUser getPublished() {
+ return new LdifUser(userAdmin, dn, publishedAttributes, true);
+ }
+
+ @Override
+ public int hashCode() {
+ return dn.hashCode();
+ }
+
+ @Override
+ public boolean equals(Object obj) {
+ if (this == obj)
+ return true;
+ if (obj instanceof LdifUser) {
+ LdifUser that = (LdifUser) obj;
+ return this.dn.equals(that.dn);
+ }
+ return false;
+ }
+
+ @Override
+ public String toString() {
+ return dn.toString();
+ }
+
+ protected AbstractUserDirectory getUserAdmin() {
+ return userAdmin;
+ }
+
+ private class AttributeDictionary extends Dictionary<String, Object> {
+ private final List<String> effectiveKeys = new ArrayList<String>();
+ private final List<String> attrFilter;
+ private final Boolean includeFilter;
+
+ public AttributeDictionary(Boolean includeFilter) {
+ this.attrFilter = userAdmin.getCredentialAttributeIds();
+ this.includeFilter = includeFilter;
+ try {
+ NamingEnumeration<String> ids = getAttributes().getIDs();
+ while (ids.hasMore()) {
+ String id = ids.next();
+ if (includeFilter && attrFilter.contains(id))
+ effectiveKeys.add(id);
+ else if (!includeFilter && !attrFilter.contains(id))
+ effectiveKeys.add(id);
+ }
+ } catch (NamingException e) {
+ throw new UserDirectoryException("Cannot initialise attribute dictionary", e);
+ }
+ }
+
+ @Override
+ public int size() {
+ return effectiveKeys.size();
+ }
+
+ @Override
+ public boolean isEmpty() {
+ return effectiveKeys.size() == 0;
+ }
+
+ @Override
+ public Enumeration<String> keys() {
+ return Collections.enumeration(effectiveKeys);
+ }
+
+ @Override
+ public Enumeration<Object> elements() {
+ final Iterator<String> it = effectiveKeys.iterator();
+ return new Enumeration<Object>() {
+
+ @Override
+ public boolean hasMoreElements() {
+ return it.hasNext();
+ }
+
+ @Override
+ public Object nextElement() {
+ String key = it.next();
+ return get(key);
+ }
+
+ };
+ }
+
+ @Override
+ public Object get(Object key) {
+ try {
+ Attribute attr = getAttributes().get(key.toString());
+ if (attr == null)
+ return null;
+ Object value = attr.get();
+ if (value instanceof byte[]) {
+ if (key.equals(LdifName.userPassword.name()))
+ // TODO other cases (certificates, images)
+ return value;
+ value = new String((byte[]) value, Charset.forName("UTF-8"));
+ }
+ if (attr.size() == 1)
+ return value;
+ if (!attr.getID().equals(LdifName.objectClass.name()))
+ return value;
+ // special case for object class
+ NamingEnumeration<?> en = attr.getAll();
+ Set<String> objectClasses = new HashSet<String>();
+ while (en.hasMore()) {
+ String objectClass = en.next().toString();
+ objectClasses.add(objectClass);
+ }
+
+ if (objectClasses.contains(userAdmin.getUserObjectClass()))
+ return userAdmin.getUserObjectClass();
+ else if (objectClasses.contains(userAdmin.getGroupObjectClass()))
+ return userAdmin.getGroupObjectClass();
+ else
+ return value;
+ } catch (NamingException e) {
+ throw new UserDirectoryException("Cannot get value for attribute " + key, e);
+ }
+ }
+
+ @Override
+ public Object put(String key, Object value) {
+ if (key == null) {
+ // TODO persist to other sources (like PKCS12)
+ char[] password = toChars(value);
+ byte[] hashedPassword = hash(password);
+ return put(LdifName.userPassword.name(), hashedPassword);
+ }
+
+ userAdmin.checkEdit();
+ if (!isEditing())
+ startEditing();
+
+ if (!(value instanceof String || value instanceof byte[]))
+ throw new IllegalArgumentException("Value must be String or byte[]");
+
+ if (includeFilter && !attrFilter.contains(key))
+ throw new IllegalArgumentException("Key " + key + " not included");
+ else if (!includeFilter && attrFilter.contains(key))
+ throw new IllegalArgumentException("Key " + key + " excluded");
+
+ try {
+ Attribute attribute = getModifiedAttributes().get(key.toString());
+ attribute = new BasicAttribute(key.toString());
+ if (value instanceof String && !isAsciiPrintable(((String) value)))
+ try {
+ attribute.add(((String) value).getBytes("UTF-8"));
+ } catch (UnsupportedEncodingException e) {
+ throw new UserDirectoryException("Cannot encode " + value, e);
+ }
+ else
+ attribute.add(value);
+ Attribute previousAttribute = getModifiedAttributes().put(attribute);
+ if (previousAttribute != null)
+ return previousAttribute.get();
+ else
+ return null;
+ } catch (NamingException e) {
+ throw new UserDirectoryException("Cannot get value for attribute " + key, e);
+ }
+ }
+
+ @Override
+ public Object remove(Object key) {
+ userAdmin.checkEdit();
+ if (!isEditing())
+ startEditing();
+
+ if (includeFilter && !attrFilter.contains(key))
+ throw new IllegalArgumentException("Key " + key + " not included");
+ else if (!includeFilter && attrFilter.contains(key))
+ throw new IllegalArgumentException("Key " + key + " excluded");
+
+ try {
+ Attribute attr = getModifiedAttributes().remove(key.toString());
+ if (attr != null)
+ return attr.get();
+ else
+ return null;
+ } catch (NamingException e) {
+ throw new UserDirectoryException("Cannot remove attribute " + key, e);
+ }
+ }
+ }
+
+ private static boolean isAsciiPrintable(String str) {
+ if (str == null) {
+ return false;
+ }
+ int sz = str.length();
+ for (int i = 0; i < sz; i++) {
+ if (isAsciiPrintable(str.charAt(i)) == false) {
+ return false;
+ }
+ }
+ return true;
+ }
+
+ private static boolean isAsciiPrintable(char ch) {
+ return ch >= 32 && ch < 127;
}
}
projects / lgpl / argeo-commons.git / blobdiff