>From fc39af6f9d884ec3c1609c5ab249397e8b68a78a Mon Sep 17 00:00:00 2001
From: Fraser Tweedale <frase@frase.id.au>
Date: Tue, 15 Jul 2014 02:48:35 -0400
Subject: [PATCH] add LDAPConfigStore class

The LDAPConfigStore class is an IConfigStore that reads and writes
its configuration to a given attribute and DN in an LDAP database.
---
 .../com/netscape/cmscore/base/LDAPConfigStore.java | 114 +++++++++++++++++++++
 1 file changed, 114 insertions(+)
 create mode 100644 base/server/cmscore/src/com/netscape/cmscore/base/LDAPConfigStore.java

diff --git a/base/server/cmscore/src/com/netscape/cmscore/base/LDAPConfigStore.java b/base/server/cmscore/src/com/netscape/cmscore/base/LDAPConfigStore.java
new file mode 100644
index 0000000000000000000000000000000000000000..7d08fe9d3b75ceb954f3bd515eec5076d0af2db9
--- /dev/null
+++ b/base/server/cmscore/src/com/netscape/cmscore/base/LDAPConfigStore.java
@@ -0,0 +1,114 @@
+// --- BEGIN COPYRIGHT BLOCK ---
+// This program is free software; you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation; version 2 of the License.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License along
+// with this program; if not, write to the Free Software Foundation, Inc.,
+// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+//
+// (C) 2007, 2014 Red Hat, Inc.
+// All rights reserved.
+// --- END COPYRIGHT BLOCK ---
+
+package com.netscape.cmscore.base;
+
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.InputStream;
+import java.io.IOException;
+import java.util.Map;
+
+import netscape.ldap.LDAPAttribute;
+import netscape.ldap.LDAPConnection;
+import netscape.ldap.LDAPEntry;
+import netscape.ldap.LDAPModification;
+
+import com.netscape.certsrv.apps.CMS;
+import com.netscape.certsrv.base.EBaseException;
+import com.netscape.certsrv.base.IConfigStore;
+import com.netscape.certsrv.ldap.ILdapConnFactory;
+import com.netscape.cmsutil.util.Utils;
+
+/**
+ * LDAPConfigStore:
+ * Extends PropConfigStore with methods to load/save from/to file for
+ * persistent storage. This is a configuration store agent who
+ * reads data from an LDAP entry.
+ * <P>
+ *
+ * @version $Revision$, $Date$
+ * @see PropConfigStore
+ */
+public class LDAPConfigStore extends PropConfigStore implements IConfigStore {
+
+    private ILdapConnFactory mDbFactory;
+    private String mDn;
+    private String mAttr;
+
+    /**
+     *
+     */
+    private static final long serialVersionUID = 3642124526598175633L;
+
+    /**
+     * Constructs a file configuration store.
+     * <P>
+     *
+     * @param dbFactory Database connection factory
+     * @param dn Distinguished name of record containing config store
+     * @param attr Name of attribute containing config store
+     *
+     * @exception EBaseException failed to create file configuration
+     */
+    public LDAPConfigStore(ILdapConnFactory dbFactory, String dn, String attr)
+            throws EBaseException {
+        super(null);  // top-level store without a name
+
+        mDbFactory = dbFactory;
+        mDn = dn;
+        mAttr = attr;
+
+        LDAPConnection conn = mDbFactory.getConn();
+
+        String[] attrs = {mAttr};
+        LDAPEntry ldapEntry = conn.read(mDn, attrs);
+        InputStream data = new ByteArrayInputStream( (byte[])
+            ldapEntry.getAttribute(mAttr).getByteValues().nextElement());
+        load(data);
+
+        conn.disconnect();
+    }
+
+    /**
+     * The original config file is copied to
+     * <filename>.<current_time_in_milliseconds>.
+     * Commits the current properties to the configuration file.
+     * <P>
+     *
+     * @param backup
+     */
+    public void commit(boolean createBackup) throws EBaseException {
+        if (createBackup) {
+            // TODO back it up, perhaps to a user-specified attribute,
+            // or `mAttr + "_backup"`.
+        }
+
+        LDAPConnection conn = mDbFactory.getConn();
+
+        ByteArrayOutputStream data = new ByteArrayOutputStream();
+        save(data, null);
+
+        LDAPAttribute ldapAttr = new LDAPAttribute(mAttr, data.toByteArray());
+        LDAPModification ldapMod =
+            new LDAPModification(LDAPModification.REPLACE, ldapAttr);
+        conn.modify(mDn, ldapMod);
+
+        conn.disconnect();
+    }
+}
-- 
1.9.3