Merge pull request #190 from jtyr/master

Adding LDAP StartTLS support

src/main/scala/app/SystemSettingsController.scala

@@ -33,7 +33,9 @@ trait SystemSettingsControllerBase extends ControllerBase with FlashMapSupport {
         "bindPassword"             -> trim(label("Bind Password", optional(text()))),
         "baseDN"                   -> trim(label("Base DN", text(required))),
         "userNameAttribute"        -> trim(label("User name attribute", text(required))),
-        "mailAttribute"            -> trim(label("Mail address attribute", text(required)))
+        "mailAttribute"            -> trim(label("Mail address attribute", text(required))),
+        "tls"                      -> trim(label("Enable TLS", optional(boolean()))),
+        "keystore"                 -> trim(label("Keystore", optional(text())))
     )(Ldap.apply))
   )(SystemSettings.apply)
 

src/main/scala/service/SystemSettingsService.scala

@@ -32,6 +32,8 @@ trait SystemSettingsService {
           props.setProperty(LdapBaseDN, ldap.baseDN)
           props.setProperty(LdapUserNameAttribute, ldap.userNameAttribute)
           props.setProperty(LdapMailAddressAttribute, ldap.mailAttribute)
+          ldap.tls.foreach(x => props.setProperty(LdapTls, x.toString))
+          ldap.keystore.foreach(x => props.setProperty(LdapKeystore, x))
         }
       }
       props.store(new java.io.FileOutputStream(GitBucketConf), null)
@@ -69,7 +71,9 @@ trait SystemSettingsService {
             getOptionValue(props, LdapBindPassword, None),
             getValue(props, LdapBaseDN, ""),
             getValue(props, LdapUserNameAttribute, ""),
-            getValue(props, LdapMailAddressAttribute, "")))
+            getValue(props, LdapMailAddressAttribute, ""),
+            getOptionValue[Boolean](props, LdapTls, None),
+            getOptionValue(props, LdapKeystore, None)))
         } else {
           None
         }
@@ -97,7 +101,9 @@ object SystemSettingsService {
     bindPassword: Option[String],
     baseDN: String,
     userNameAttribute: String,
-    mailAttribute: String)
+    mailAttribute: String,
+    tls: Option[Boolean],
+    keystore: Option[String])
 
   case class Smtp(
     host: String,
@@ -129,6 +135,8 @@ object SystemSettingsService {
   private val LdapBaseDN = "ldap.baseDN"
   private val LdapUserNameAttribute = "ldap.username_attribute"
   private val LdapMailAddressAttribute = "ldap.mail_attribute"
+  private val LdapTls = "ldap.tls"
+  private val LdapKeystore = "ldap.keystore"
 
   private def getValue[A: ClassTag](props: java.util.Properties, key: String, default: A): A =
     defining(props.getProperty(key)){ value =>

src/main/scala/util/LDAPUtil.scala

@@ -3,6 +3,8 @@ package util
 import util.ControlUtil._
 import service.SystemSettingsService
 import com.novell.ldap._
+import java.security.Security
+import org.slf4j.LoggerFactory
 import service.SystemSettingsService.Ldap
 import scala.annotation.tailrec
 
@@ -11,7 +13,8 @@ import scala.annotation.tailrec
  */
 object LDAPUtil {
 
-  private val LDAP_VERSION: Int = 3
+  private val LDAP_VERSION: Int = LDAPConnection.LDAP_V3
+  private val logger = LoggerFactory.getLogger(getClass().getName())
 
   /**
    * Try authentication by LDAP using given configuration.
@@ -22,7 +25,9 @@ object LDAPUtil {
       ldapSettings.host,
       ldapSettings.port.getOrElse(SystemSettingsService.DefaultLdapPort),
       ldapSettings.bindDN.getOrElse(""),
-      ldapSettings.bindPassword.getOrElse("")
+      ldapSettings.bindPassword.getOrElse(""),
+      ldapSettings.tls.getOrElse(false),
+      ldapSettings.keystore.getOrElse("")
     ) match {
       case Some(conn) => {
         withConnection(conn) { conn =>
@@ -41,7 +46,9 @@ object LDAPUtil {
       ldapSettings.host,
       ldapSettings.port.getOrElse(SystemSettingsService.DefaultLdapPort),
       userDN,
-      password
+      password,
+      ldapSettings.tls.getOrElse(false),
+      ldapSettings.keystore.getOrElse("")
     ) match {
       case Some(conn) => {
         withConnection(conn) { conn =>
@@ -55,15 +62,41 @@ object LDAPUtil {
     }
   }
 
-  private def bind(host: String, port: Int, dn: String, password: String): Option[LDAPConnection] = {
-    val conn: LDAPConnection = new LDAPConnection
+  private def bind(host: String, port: Int, dn: String, password: String, tls: Boolean, keystore: String): Option[LDAPConnection] = {
+    if (tls) {
+      // Dynamically set Sun as the security provider
+      Security.addProvider(new com.sun.net.ssl.internal.ssl.Provider())
+
+      if (keystore.compareTo("") != 0) {
+        // Dynamically set the property that JSSE uses to identify
+        // the keystore that holds trusted root certificates
+        System.setProperty("javax.net.ssl.trustStore", keystore)
+      }
+    }
+
+    val conn: LDAPConnection = new LDAPConnection(new LDAPJSSEStartTLSFactory())
     try {
+      // Connect to the server
       conn.connect(host, port)
+
+      if (tls) {
+        // Secure the connection
+        conn.startTLS()
+      }
+
+      // Bind to the server
       conn.bind(LDAP_VERSION, dn, password.getBytes)
+
       Some(conn)
     } catch {
       case e: Exception => {
-        if (conn.isConnected) conn.disconnect()
+        // Provide more information if something goes wrong
+        logger.info("" + e)
+
+        if (conn.isConnected) {
+          conn.disconnect()
+        }
+
         None
       }
     }

src/main/twirl/admin/system.scala.html

@@ -94,6 +94,20 @@
                 <span id="error-ldap_mailAttribute" class="error"></span>
               </div>
             </div>
+            <div class="control-group">
+              <div class="controls">
+                <label class="checkbox">
+                  <input type="checkbox" name="ldap.tls"@if(settings.ldap.flatMap(_.tls).getOrElse(false)){ checked}/> Enable TLS
+                </label>
+              </div>
+            </div>
+            <div class="control-group">
+              <label class="control-label" for="ldapBindDN">Keystore</label>
+              <div class="controls">
+                <input type="text" id="ldapKeystore" name="ldap.keystore" value="@settings.ldap.map(_.keystore)"/>
+                <span id="error-ldap_keystore" class="error"></span>
+              </div>
+            </div>
           </div>
           <!--====================================================================-->
           <!-- Notification email -->