From e072ae6def010f86be4ffd2df2592e31c2a85377 Mon Sep 17 00:00:00 2001
From: Alfred Schmid <A.Schmid@ff-muenchen.de>
Date: Wed, 19 Feb 2014 11:04:16 -0500
Subject: [PATCH] Documented default value for empty groups filter

---
 src/main/java/com/gitblit/auth/LdapAuthProvider.java |   46 +++++++++++++++++++++++++++++++++++-----------
 1 files changed, 35 insertions(+), 11 deletions(-)

diff --git a/src/main/java/com/gitblit/auth/LdapAuthProvider.java b/src/main/java/com/gitblit/auth/LdapAuthProvider.java
index 58fb821..b208459 100644
--- a/src/main/java/com/gitblit/auth/LdapAuthProvider.java
+++ b/src/main/java/com/gitblit/auth/LdapAuthProvider.java
@@ -37,7 +37,6 @@
 import com.gitblit.service.LdapSyncService;
 import com.gitblit.utils.ArrayUtils;
 import com.gitblit.utils.StringUtils;
-import com.gitblit.utils.TimeUtils;
 import com.unboundid.ldap.sdk.Attribute;
 import com.unboundid.ldap.sdk.DereferencePolicy;
 import com.unboundid.ldap.sdk.ExtendedResult;
@@ -67,15 +66,15 @@
 		super("ldap");
 	}
 
- 	private long getSynchronizationPeriod() {
-        final String cacheDuration = settings.getString(Keys.realm.ldap.ldapCachePeriod, "2 MINUTES");
+ 	private long getSynchronizationPeriodInMilliseconds(String name) {
+        final String cacheDuration = settings.getString(name, "2 MINUTES");
         try {
             final String[] s = cacheDuration.split(" ", 2);
-            long duration = Long.parseLong(s[0]);
+            long duration = Math.abs(Long.parseLong(s[0]));
             TimeUnit timeUnit = TimeUnit.valueOf(s[1]);
             return timeUnit.toMillis(duration);
         } catch (RuntimeException ex) {
-            throw new IllegalArgumentException(Keys.realm.ldap.ldapCachePeriod + " must have format '<long> <TimeUnit>' where <TimeUnit> is one of 'MILLISECONDS', 'SECONDS', 'MINUTES', 'HOURS', 'DAYS'");
+            throw new IllegalArgumentException(name + " must have format '<long> <TimeUnit>' where <TimeUnit> is one of 'MILLISECONDS', 'SECONDS', 'MINUTES', 'HOURS', 'DAYS'");
         }
     }
 
@@ -92,7 +91,7 @@
 	protected synchronized void synchronizeLdapUsers() {
         final boolean enabled = settings.getBoolean(Keys.realm.ldap.synchronizeUsers.enable, false);
         if (enabled) {
-            if (System.currentTimeMillis() > (lastLdapUserSync.get() + getSynchronizationPeriod())) {
+            if (System.currentTimeMillis() > (lastLdapUserSync.get() + getSynchronizationPeriodInMilliseconds(Keys.realm.ldap.ldapCachePeriod))) {
             	logger.info("Synchronizing with LDAP @ " + settings.getRequiredString(Keys.realm.ldap.server));
                 final boolean deleteRemovedLdapUsers = settings.getBoolean(Keys.realm.ldap.synchronizeUsers.removeDeleted, true);
                 LDAPConnection ldapConnection = getLdapConnection();
@@ -152,6 +151,9 @@
                                 }
                                 userManager.updateTeamModels(userTeams.values());
                             }
+                        }
+                        if (!supportsTeamMembershipChanges()) {
+                        	getEmptyTeamsFromLdap(ldapConnection);
                         }
                         lastLdapUserSync.set(System.currentTimeMillis());
                     } finally {
@@ -436,6 +438,27 @@
 		}
 	}
 
+	private void getEmptyTeamsFromLdap(LDAPConnection ldapConnection) {
+		String groupBase = settings.getString(Keys.realm.ldap.groupBase, "");
+		String groupMemberPattern = settings.getString(Keys.realm.ldap.groupEmptyMemberPattern, "(&(objectClass=group)(!(member=*)))");
+
+		SearchResult teamMembershipResult = doSearch(ldapConnection, groupBase, true, groupMemberPattern, null);
+		if (teamMembershipResult != null && teamMembershipResult.getEntryCount() > 0) {
+			for (int i = 0; i < teamMembershipResult.getEntryCount(); i++) {
+				SearchResultEntry teamEntry = teamMembershipResult.getSearchEntries().get(i);
+				if (!teamEntry.hasAttribute("member")) {
+					String teamName = teamEntry.getAttribute("cn").getValue();
+	
+					TeamModel teamModel = userManager.getTeamModel(teamName);
+					if (teamModel == null) {
+						teamModel = createTeamFromLdap(teamEntry);
+						userManager.updateTeamModel(teamModel);
+					}
+				}
+			}
+		}
+	}
+
 	private TeamModel createTeamFromLdap(SearchResultEntry teamEntry) {
 		TeamModel answer = new TeamModel(teamEntry.getAttributeValue("cn"));
 		answer.accountType = getAccountType();
@@ -533,14 +556,15 @@
 		logger.info("Start configuring ldap sync service");
 		LdapSyncService ldapSyncService = new LdapSyncService(settings, this);
 		if (ldapSyncService.isReady()) {
-			int mins = TimeUtils.convertFrequencyToMinutes(settings.getString(Keys.realm.ldap.synchronizeUsers.ldapSyncPeriod, "5 mins"));
-			if (mins < 5) {
-				mins = 5;
+			long ldapSyncPeriod = getSynchronizationPeriodInMilliseconds(Keys.realm.ldap.synchronizeUsers.ldapSyncPeriod);
+			long ldapCachePeriod = getSynchronizationPeriodInMilliseconds(Keys.realm.ldap.synchronizeUsers.ldapSyncPeriod);
+			if (ldapSyncPeriod < ldapCachePeriod) {
+				ldapSyncPeriod = ldapCachePeriod;
 			}
 			int delay = 1;
 			ScheduledExecutorService scheduledExecutorService = Executors.newSingleThreadScheduledExecutor();
-			scheduledExecutorService.scheduleAtFixedRate(ldapSyncService, delay, mins,  TimeUnit.MINUTES);
-			logger.info("Ldap sync service will update user and groups every {} minutes.", mins);
+			scheduledExecutorService.scheduleAtFixedRate(ldapSyncService, delay, ldapSyncPeriod,  TimeUnit.MILLISECONDS);
+			logger.info("Ldap sync service will update user and groups every {} minutes.", ldapSyncPeriod);
 			logger.info("Next scheduled ldap sync is in {} minutes", delay);
 		} else {
 			logger.info("Ldap sync service is disabled.");

--
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