From 601c63ae6f4a7de7cb99c5843c7068d053f3a1cd Mon Sep 17 00:00:00 2001
From: Wolfgang Sourdeau <wsourdeau@inverse.ca>
Date: Thu, 17 Nov 2011 18:30:48 +0000
Subject: [PATCH] Monotone-Parent: 1cc1f0928d45b737424141e1efb38e5b729b89d7
 Monotone-Revision: 12ff4c07aa1f796a3312a4e79566255dbd94aece

Monotone-Author: wsourdeau@inverse.ca
Monotone-Date: 2011-11-17T18:30:48
Monotone-Branch: ca.inverse.sogo
---
 ChangeLog                        |  5 +++
 OpenChange/MAPIStoreSamDBUtils.h | 34 ++++++++++++++++++
 OpenChange/MAPIStoreSamDBUtils.m | 62 ++++++++++++++++++++++++++++++++
 3 files changed, 101 insertions(+)
 create mode 100644 OpenChange/MAPIStoreSamDBUtils.h
 create mode 100644 OpenChange/MAPIStoreSamDBUtils.m

diff --git a/ChangeLog b/ChangeLog
index 9410748b3..5de14ea5e 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,10 @@
 2011-11-17  Wolfgang Sourdeau  <wsourdeau@inverse.ca>
 
+	* OpenChange/MAPIStoreSamDBUtils.m: new module containing helpers
+	pertaining to the SamDB.
+	(MAPIStoreSamDBUserAttribute): new function that returns the value
+	of a specified key from a user record matching one simple criteria.
+
 	* OpenChange/MAPIStoreMessage.m (MAPIStoreInternalEntryId): now
 	takes a ldb_context * parameter pointing to the samdb, which
 	enables us: 1) to return the real legacyExchangeDN 2) to make use
diff --git a/OpenChange/MAPIStoreSamDBUtils.h b/OpenChange/MAPIStoreSamDBUtils.h
new file mode 100644
index 000000000..d8220992f
--- /dev/null
+++ b/OpenChange/MAPIStoreSamDBUtils.h
@@ -0,0 +1,34 @@
+/* MAPIStoreSamDBUtils.h - this file is part of SOGo
+ *
+ * Copyright (C) 2011 Inverse inc
+ *
+ * Author: Wolfgang Sourdeau <wsourdeau@inverse.ca>
+ *
+ * This file 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; either version 2, or (at your option)
+ * any later version.
+ *
+ * This file 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; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#ifndef MAPISTORESAMDBUTILS_H
+#define MAPISTORESAMDBUTILS_H
+
+@class NSString;
+struct ldb_context;
+
+NSString *MAPIStoreSamDBUserAttribute (struct ldb_context *samCtx,
+                                       NSString *userKey,
+                                       NSString *value,
+                                       NSString *attributeName);
+
+#endif /* MAPISTORESAMDBUTILS_H */
diff --git a/OpenChange/MAPIStoreSamDBUtils.m b/OpenChange/MAPIStoreSamDBUtils.m
new file mode 100644
index 000000000..ed8d6a0b5
--- /dev/null
+++ b/OpenChange/MAPIStoreSamDBUtils.m
@@ -0,0 +1,62 @@
+/* MAPIStoreSamDBUtils.m - this file is part of SOGo
+ *
+ * Copyright (C) 2011 Inverse inc
+ *
+ * Author: Wolfgang Sourdeau <wsourdeau@inverse.ca>
+ *
+ * This file 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; either version 2, or (at your option)
+ * any later version.
+ *
+ * This file 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; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#import <Foundation/NSString.h>
+#include <talloc.h>
+#include <ldb.h>
+
+#import "MAPIStoreSamDBUtils.h"
+
+NSString *
+MAPIStoreSamDBUserAttribute (struct ldb_context *samCtx,
+                             NSString *userKey,
+                             NSString *value,
+                             NSString *attributeName)
+{
+  NSString *resultValue = nil;
+  const char *attrs[] = { "", NULL };
+  NSString *searchFormat;
+  const char *result;
+  struct ldb_result *res = NULL;
+  TALLOC_CTX *memCtx;
+  int ret;
+
+  memCtx = talloc_zero(NULL, TALLOC_CTX);
+
+  attrs[0] = [attributeName UTF8String];
+  searchFormat
+    = [NSString stringWithFormat: @"(&(objectClass=user)(%@=%%s))", userKey];
+  ret = ldb_search (samCtx, memCtx, &res, ldb_get_default_basedn(samCtx),
+                    LDB_SCOPE_SUBTREE, attrs,
+                    [searchFormat UTF8String],
+                    [value UTF8String]);
+  if (ret == LDB_SUCCESS && res->count == 1)
+    {
+      result = ldb_msg_find_attr_as_string (res->msgs[0], attrs[0], NULL);
+      if (result)
+        resultValue = [NSString stringWithUTF8String: result];
+    }
+
+  talloc_free (memCtx);
+
+  return resultValue;
+}