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package com.gitblit.tests;
import java.io.File;
import java.util.Arrays;
import java.util.Collection;
import java.util.EnumSet;
import java.util.HashMap;
import java.util.Map;
import org.apache.commons.io.FileUtils;
import org.junit.AfterClass;
import org.junit.Before;
import org.junit.BeforeClass;
import org.junit.Rule;
import org.junit.rules.TemporaryFolder;
import org.junit.runners.Parameterized.Parameter;
import org.junit.runners.Parameterized.Parameters;
import com.gitblit.Keys;
import com.gitblit.tests.mock.MemorySettings;
import com.unboundid.ldap.listener.InMemoryDirectoryServer;
import com.unboundid.ldap.listener.InMemoryDirectoryServerConfig;
import com.unboundid.ldap.listener.InMemoryDirectoryServerSnapshot;
import com.unboundid.ldap.listener.InMemoryListenerConfig;
import com.unboundid.ldap.listener.interceptor.InMemoryInterceptedRequest;
import com.unboundid.ldap.listener.interceptor.InMemoryInterceptedResult;
import com.unboundid.ldap.listener.interceptor.InMemoryInterceptedSearchEntry;
import com.unboundid.ldap.listener.interceptor.InMemoryInterceptedSearchRequest;
import com.unboundid.ldap.listener.interceptor.InMemoryInterceptedSearchResult;
import com.unboundid.ldap.listener.interceptor.InMemoryInterceptedSimpleBindResult;
import com.unboundid.ldap.listener.interceptor.InMemoryOperationInterceptor;
import com.unboundid.ldap.sdk.BindRequest;
import com.unboundid.ldap.sdk.BindResult;
import com.unboundid.ldap.sdk.LDAPException;
import com.unboundid.ldap.sdk.LDAPResult;
import com.unboundid.ldap.sdk.OperationType;
import com.unboundid.ldap.sdk.ResultCode;
import com.unboundid.ldap.sdk.SimpleBindRequest;
/**
* Base class for Unit (/Integration) tests that test going against an
* in-memory UnboundID LDAP server.
*
* This base class creates separate in-memory LDAP servers for different scenarios:
* - ANONYMOUS: anonymous bind to LDAP.
* - DS_MANAGER: The DIRECTORY_MANAGER is set as DN to bind as an admin.
* Normal users are prohibited to search the DS, they can only bind.
* - USR_MANAGER: The USER_MANAGER is set as DN to bind as an admin.
* This account can only search users but not groups. Normal users can search groups.
*
* @author Florian Zschocke
*
*/
public abstract class LdapBasedUnitTest extends GitblitUnitTest {
protected static final String RESOURCE_DIR = "src/test/resources/ldap/";
private static final String DIRECTORY_MANAGER = "cn=Directory Manager";
private static final String USER_MANAGER = "cn=UserManager";
protected static final String ACCOUNT_BASE = "OU=Users,OU=UserControl,OU=MyOrganization,DC=MyDomain";
private static final String GROUP_BASE = "OU=Groups,OU=UserControl,OU=MyOrganization,DC=MyDomain";
protected static final String DN_USER_ONE = "CN=UserOne,OU=US," + ACCOUNT_BASE;
protected static final String DN_USER_TWO = "CN=UserTwo,OU=US," + ACCOUNT_BASE;
protected static final String DN_USER_THREE = "CN=UserThree,OU=Canada," + ACCOUNT_BASE;
/**
* Enumeration of different test modes, representing different use scenarios.
* With ANONYMOUS anonymous binds are used to search LDAP.
* DS_MANAGER will use a DIRECTORY_MANAGER to search LDAP. Normal users are prohibited to search the DS.
* With USR_MANAGER, a USER_MANAGER account is used to search in LDAP. This account can only search users
* but not groups. Normal users can search groups, though.
*
*/
protected enum AuthMode {
ANONYMOUS,
DS_MANAGER,
USR_MANAGER;
private int ldapPort;
private InMemoryDirectoryServer ds;
private InMemoryDirectoryServerSnapshot dsSnapshot;
private BindTracker bindTracker;
void setLdapPort(int port) {
this.ldapPort = port;
}
int ldapPort() {
return this.ldapPort;
}
void setDS(InMemoryDirectoryServer ds) {
if (this.ds == null) {
this.ds = ds;
this.dsSnapshot = ds.createSnapshot();
};
}
InMemoryDirectoryServer getDS() {
return ds;
}
void setBindTracker(BindTracker bindTracker) {
this.bindTracker = bindTracker;
}
BindTracker getBindTracker() {
return bindTracker;
}
void restoreSnapshot() {
ds.restoreSnapshot(dsSnapshot);
}
}
@Parameter
public AuthMode authMode = AuthMode.ANONYMOUS;
@Rule
public TemporaryFolder folder = new TemporaryFolder();
protected File usersConf;
protected MemorySettings settings;
/**
* Run the tests with each authentication scenario once.
*/
@Parameters(name = "{0}")
public static Collection<Object[]> data() {
return Arrays.asList(new Object[][] { {AuthMode.ANONYMOUS}, {AuthMode.DS_MANAGER}, {AuthMode.USR_MANAGER} });
}
/**
* Create three different in memory DS.
*
* Each DS has a different configuration:
* The first allows anonymous binds.
* The second requires authentication for all operations. It will only allow the DIRECTORY_MANAGER account
* to search for users and groups.
* The third one is like the second, but it allows users to search for users and groups, and restricts the
* USER_MANAGER from searching for groups.
*/
@BeforeClass
public static void ldapInit() throws Exception {
InMemoryDirectoryServer ds;
InMemoryDirectoryServerConfig config = createInMemoryLdapServerConfig(AuthMode.ANONYMOUS);
config.setListenerConfigs(InMemoryListenerConfig.createLDAPConfig("anonymous"));
ds = createInMemoryLdapServer(config);
AuthMode.ANONYMOUS.setDS(ds);
AuthMode.ANONYMOUS.setLdapPort(ds.getListenPort("anonymous"));
config = createInMemoryLdapServerConfig(AuthMode.DS_MANAGER);
config.setListenerConfigs(InMemoryListenerConfig.createLDAPConfig("ds_manager"));
config.setAuthenticationRequiredOperationTypes(EnumSet.allOf(OperationType.class));
ds = createInMemoryLdapServer(config);
AuthMode.DS_MANAGER.setDS(ds);
AuthMode.DS_MANAGER.setLdapPort(ds.getListenPort("ds_manager"));
config = createInMemoryLdapServerConfig(AuthMode.USR_MANAGER);
config.setListenerConfigs(InMemoryListenerConfig.createLDAPConfig("usr_manager"));
config.setAuthenticationRequiredOperationTypes(EnumSet.allOf(OperationType.class));
ds = createInMemoryLdapServer(config);
AuthMode.USR_MANAGER.setDS(ds);
AuthMode.USR_MANAGER.setLdapPort(ds.getListenPort("usr_manager"));
}
@AfterClass
public static void destroy() throws Exception {
for (AuthMode am : AuthMode.values()) {
am.getDS().shutDown(true);
}
}
public static InMemoryDirectoryServer createInMemoryLdapServer(InMemoryDirectoryServerConfig config) throws Exception {
InMemoryDirectoryServer imds = new InMemoryDirectoryServer(config);
imds.importFromLDIF(true, RESOURCE_DIR + "sampledata.ldif");
imds.startListening();
return imds;
}
public static InMemoryDirectoryServerConfig createInMemoryLdapServerConfig(AuthMode authMode) throws Exception {
InMemoryDirectoryServerConfig config = new InMemoryDirectoryServerConfig("dc=MyDomain");
config.addAdditionalBindCredentials(DIRECTORY_MANAGER, "password");
config.addAdditionalBindCredentials(USER_MANAGER, "passwd");
config.setSchema(null);
authMode.setBindTracker(new BindTracker());
config.addInMemoryOperationInterceptor(authMode.getBindTracker());
config.addInMemoryOperationInterceptor(new AccessInterceptor(authMode));
return config;
}
@Before
public void setupBase() throws Exception {
authMode.restoreSnapshot();
authMode.getBindTracker().reset();
usersConf = folder.newFile("users.conf");
FileUtils.copyFile(new File(RESOURCE_DIR + "users.conf"), usersConf);
settings = getSettings();
}
protected InMemoryDirectoryServer getDS() {
return authMode.getDS();
}
protected MemorySettings getSettings() {
Map<String, Object> backingMap = new HashMap<String, Object>();
backingMap.put(Keys.realm.userService, usersConf.getAbsolutePath());
backingMap.put(Keys.realm.ldap.server, "ldap://localhost:" + authMode.ldapPort());
switch(authMode) {
case ANONYMOUS:
backingMap.put(Keys.realm.ldap.username, "");
backingMap.put(Keys.realm.ldap.password, "");
break;
case DS_MANAGER:
backingMap.put(Keys.realm.ldap.username, DIRECTORY_MANAGER);
backingMap.put(Keys.realm.ldap.password, "password");
break;
case USR_MANAGER:
backingMap.put(Keys.realm.ldap.username, USER_MANAGER);
backingMap.put(Keys.realm.ldap.password, "passwd");
break;
default:
throw new RuntimeException("Unimplemented AuthMode case!");
}
backingMap.put(Keys.realm.ldap.maintainTeams, "true");
backingMap.put(Keys.realm.ldap.accountBase, ACCOUNT_BASE);
backingMap.put(Keys.realm.ldap.accountPattern, "(&(objectClass=person)(sAMAccountName=${username}))");
backingMap.put(Keys.realm.ldap.groupBase, GROUP_BASE);
backingMap.put(Keys.realm.ldap.groupMemberPattern, "(&(objectClass=group)(member=${dn}))");
backingMap.put(Keys.realm.ldap.admins, "UserThree @Git_Admins \"@Git Admins\"");
backingMap.put(Keys.realm.ldap.displayName, "displayName");
backingMap.put(Keys.realm.ldap.email, "email");
backingMap.put(Keys.realm.ldap.uid, "sAMAccountName");
MemorySettings ms = new MemorySettings(backingMap);
return ms;
}
/**
* Operation interceptor for the in memory DS. This interceptor
* tracks bind requests.
*
*/
protected static class BindTracker extends InMemoryOperationInterceptor {
private Map<Integer,String> lastSuccessfulBindDNs = new HashMap<>();
private String lastSuccessfulBindDN;
@Override
public void processSimpleBindResult(InMemoryInterceptedSimpleBindResult bind) {
BindResult result = bind.getResult();
if (result.getResultCode() == ResultCode.SUCCESS) {
BindRequest bindRequest = bind.getRequest();
lastSuccessfulBindDNs.put(bind.getMessageID(), ((SimpleBindRequest)bindRequest).getBindDN());
lastSuccessfulBindDN = ((SimpleBindRequest)bindRequest).getBindDN();
}
}
String getLastSuccessfulBindDN() {
return lastSuccessfulBindDN;
}
String getLastSuccessfulBindDN(int messageID) {
return lastSuccessfulBindDNs.get(messageID);
}
void reset() {
lastSuccessfulBindDNs = new HashMap<>();
lastSuccessfulBindDN = null;
}
}
/**
* Operation interceptor for the in memory DS. This interceptor
* implements access restrictions for certain user/DN combinations.
*
* The USER_MANAGER is only allowed to search for users, but not for groups.
* This is to test the original behaviour where the teams were searched under
* the user binding.
* When running in a DIRECTORY_MANAGER scenario, only the manager account
* is allowed to search for users and groups, while a normal user may not do so.
* This tests the scenario where a normal user cannot read teams and thus the
* manager account needs to be used for all searches.
*
*/
protected static class AccessInterceptor extends InMemoryOperationInterceptor {
AuthMode authMode;
Map<Long,String> lastSuccessfulBindDN = new HashMap<>();
Map<Long,Boolean> resultProhibited = new HashMap<>();
public AccessInterceptor(AuthMode authMode) {
this.authMode = authMode;
}
@Override
public void processSimpleBindResult(InMemoryInterceptedSimpleBindResult bind) {
BindResult result = bind.getResult();
if (result.getResultCode() == ResultCode.SUCCESS) {
BindRequest bindRequest = bind.getRequest();
lastSuccessfulBindDN.put(bind.getConnectionID(), ((SimpleBindRequest)bindRequest).getBindDN());
resultProhibited.remove(bind.getConnectionID());
}
}
@Override
public void processSearchRequest(InMemoryInterceptedSearchRequest request) throws LDAPException {
String bindDN = getLastBindDN(request);
if (USER_MANAGER.equals(bindDN)) {
if (request.getRequest().getBaseDN().endsWith(GROUP_BASE)) {
throw new LDAPException(ResultCode.NO_SUCH_OBJECT);
}
}
else if(authMode == AuthMode.DS_MANAGER && !DIRECTORY_MANAGER.equals(bindDN)) {
throw new LDAPException(ResultCode.NO_SUCH_OBJECT);
}
}
@Override
public void processSearchEntry(InMemoryInterceptedSearchEntry entry) {
String bindDN = getLastBindDN(entry);
boolean prohibited = false;
if (USER_MANAGER.equals(bindDN)) {
if (entry.getSearchEntry().getDN().endsWith(GROUP_BASE)) {
prohibited = true;
}
}
else if(authMode == AuthMode.DS_MANAGER && !DIRECTORY_MANAGER.equals(bindDN)) {
prohibited = true;
}
if (prohibited) {
// Found entry prohibited for bound user. Setting entry to null.
entry.setSearchEntry(null);
resultProhibited.put(entry.getConnectionID(), Boolean.TRUE);
}
}
@Override
public void processSearchResult(InMemoryInterceptedSearchResult result) {
String bindDN = getLastBindDN(result);
boolean prohibited = false;
Boolean rspb = resultProhibited.get(result.getConnectionID());
if (USER_MANAGER.equals(bindDN)) {
if (rspb != null && rspb) {
prohibited = true;
}
}
else if(authMode == AuthMode.DS_MANAGER && !DIRECTORY_MANAGER.equals(bindDN)) {
if (rspb != null && rspb) {
prohibited = true;
}
}
if (prohibited) {
// Result prohibited for bound user. Returning error
result.setResult(new LDAPResult(result.getMessageID(), ResultCode.INSUFFICIENT_ACCESS_RIGHTS));
resultProhibited.remove(result.getConnectionID());
}
}
private String getLastBindDN(InMemoryInterceptedResult result) {
String bindDN = lastSuccessfulBindDN.get(result.getConnectionID());
if (bindDN == null) {
return "UNKNOWN";
}
return bindDN;
}
private String getLastBindDN(InMemoryInterceptedRequest request) {
String bindDN = lastSuccessfulBindDN.get(request.getConnectionID());
if (bindDN == null) {
return "UNKNOWN";
}
return bindDN;
}
}
}
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