oc-calendar: Implement PidTagSensitivity

As described in [MS-OXCICAL] Section 2.1.3.11.20.4 by using
access CLASS iCal field.

Although Outlook does not support confidential level, it is properly
exported and imported.

OpenChange/MAPIStoreAppointmentWrapper.m

@@ -1200,11 +1200,31 @@ static NSCharacterSet *hexCharacterSet = nil;
   return [self getYes: data inMemCtx: memCtx];
 }
 
-- (int) getPidTagSensitivity: (void **) data // not implemented, depends on CLASS
+- (int) getPidTagSensitivity: (void **) data
                     inMemCtx: (TALLOC_CTX *) memCtx
 {
-  // normal = 0, personal?? = 1, private = 2, confidential = 3
-  return [self getLongZero: data inMemCtx: memCtx];
+  /* See [MS-OXCICAL] Section 2.1.3.11.20.4 */
+  uint32_t v;
+  NSString *accessClass;
+
+  accessClass = [event accessClass];
+  if (accessClass)
+    {
+      if ([accessClass isEqualToString: @"X-PERSONAL"])
+        v = 0x1;
+      else if ([accessClass isEqualToString: @"PRIVATE"])
+        v = 0x2;
+      else if ([accessClass isEqualToString: @"CONFIDENTIAL"])
+        v = 0x3;
+      else
+        v = 0x0;  /* PUBLIC */
+    }
+  else
+      v = 0x0;  /* PUBLIC */
+
+  *data = MAPILongValue (memCtx, v);
+
+  return MAPISTORE_SUCCESS;
 }
 
 - (int) getPidTagImportance: (void **) data

OpenChange/MAPIStoreCalendarMessage.m

@@ -365,6 +365,18 @@ static Class NSArrayK, MAPIStoreAppointmentWrapperK;
   return MAPISTORE_ERR_NOT_FOUND;
 }
 
+- (int) getPidTagSensitivity: (void **) data
+                    inMemCtx: (TALLOC_CTX *) memCtx
+{
+  MAPIStoreAppointmentWrapper *appointmentWrapper;
+
+  appointmentWrapper = [self _appointmentWrapper];
+  if (appointmentWrapper)
+    return [appointmentWrapper getPidTagSensitivity: data inMemCtx: memCtx];
+
+  return [self getLongZero: data inMemCtx: memCtx];
+}
+
 - (int) getPidTagImportance: (void **) data
                     inMemCtx: (TALLOC_CTX *) memCtx
 {

OpenChange/MAPIStoreMessage.m

@@ -784,7 +784,7 @@ rtf2html (NSData *compressedRTF)
   return [self getLongZero: data inMemCtx: memCtx];
 }
 
-- (int) getPidTagSensitivity: (void **) data // TODO -> subclass in calendar
+- (int) getPidTagSensitivity: (void **) data
                     inMemCtx: (TALLOC_CTX *) memCtx
 {
   return [self getLongZero: data inMemCtx: memCtx];

OpenChange/iCalEvent+MAPIStore.m

@@ -140,7 +140,7 @@
   iCalDateTime *start, *end;
   iCalTimeZone *tz;
   NSTimeZone *userTimeZone;
-  NSString *priority;
+  NSString *priority, *class = nil;
   NSUInteger responseStatus = 0;
   NSInteger tzOffset;
   SOGoUser *ownerUser;
@@ -281,6 +281,30 @@
     priority = @"0"; // None
   [self setPriority: priority];
 
+  /* class */
+  /* See [MS-OXCICAL] Section 2.1.3.11.20.4 */
+  value = [properties objectForKey: MAPIPropertyKey(PR_SENSITIVITY)];
+  if (value)
+    {
+      switch ([value intValue])
+        {
+        case 1:
+          class = @"X-PERSONAL";
+          break;
+        case 2:
+          class = @"PRIVATE";
+          break;
+        case 3:
+          class = @"CONFIDENTIAL";
+          break;
+        default:  /* 0 as well */
+          class = @"PUBLIC";
+        }
+    }
+
+  if (class)
+    [self setAccessClass: class];
+
   /* show time as free/busy/tentative/out of office. Possible values are:
      0x00000000 - olFree
      0x00000001 - olTentative