Properly honor "include in freebusy"

Fixes #3354

SoObjects/Appointments/SOGoAppointmentFolder.m

@@ -445,36 +445,27 @@ static Class iCalEventK = nil;
 - (BOOL) includeInFreeBusy
 {
   NSNumber *excludeFromFreeBusy;
-  NSString *userLogin;
+  NSString *userLogin, *ownerInContext;
   BOOL is_owner;
   
   userLogin = [[context activeUser] login];
-  is_owner = [userLogin isEqualToString: self->owner];
-  
-  // Check if the owner (not the active user) has excluded the calendar from her/his free busy data.
-  excludeFromFreeBusy
-    = [self folderPropertyValueInCategory: @"FreeBusyExclusions"
-				  forUser: [context activeUser]];
+  ownerInContext = [[self container] ownerInContext: context];
+  is_owner = [userLogin isEqualToString: ownerInContext];
 
-  if ([self isSubscription])
-    {
-      // If the user has not yet set an include/not include fb information let's EXCLUDE it.
-      if (!excludeFromFreeBusy)
-        return NO;
-      else
-        return ![excludeFromFreeBusy boolValue];
-    }
-  else if (is_owner)
-    {
-      // We are the owner but we haven't included/excluded freebusy info, let's INCLUDE it.
-      if (!excludeFromFreeBusy)
-        return YES;
-      else
-        return ![excludeFromFreeBusy boolValue];
-    }
+  if (is_owner)
+    excludeFromFreeBusy
+      = [self folderPropertyValueInCategory: @"FreeBusyExclusions"
+				    forUser: [context activeUser]];
+  else
+    excludeFromFreeBusy
+      = [self folderPropertyValueInCategory: @"FreeBusyExclusions"
+				    forUser: [SOGoUser userWithLogin: ownerInContext]];
 
-  // It's not a subscribtion and we aren't the owner. Let's INCLUDE the freebusy info.
-  return YES;
+  // We haven't included/excluded freebusy info, let's INCLUDE it.
+  if (!excludeFromFreeBusy)
+    return YES;
+
+  return ![excludeFromFreeBusy boolValue];
 }
 
 - (void) setIncludeInFreeBusy: (BOOL) newInclude

SoObjects/Appointments/SOGoFreeBusyObject.m

@@ -317,6 +317,7 @@
                                   to: (NSCalendarDate *) endDate
 {
   SOGoAppointmentFolder *calFolder;
+  SOGoAppointmentFolders *calFolders;
   SOGoUser *user;
   SOGoUserDefaults *ud;
   NSArray *folders;
@@ -326,9 +327,12 @@
 
   infos = [NSMutableArray array];
 
-  folders = [[container lookupName: @"Calendar"
-			inContext: context
-			acquire: NO] subFolders];
+  calFolders = [container lookupName: @"Calendar"
+                           inContext: context
+                             acquire: NO];
+  [calFolders appendSubscribedSources];
+  folders = [calFolders subFolders];
+
   max = [folders count];
   for (count = 0; count < max; count++)
     {

SoObjects/SOGo/SOGoParentFolder.m

@@ -1,6 +1,6 @@
 /* SOGoParentFolder.m - this file is part of SOGo
  *
- * Copyright (C) 2006-2015 Inverse inc.
+ * Copyright (C) 2006-2017 Inverse inc.
  *
  * 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
@@ -323,6 +323,12 @@ static SoSecurityManager *sm = nil;
   int i;
   BOOL dirty;
 
+  if (!subscribedSubFolders)
+    subscribedSubFolders = [NSMutableDictionary new];
+
+  if (!subFolderClass)
+    subFolderClass = [[self class] subFolderClass];
+
   error = nil; /* we ignore non-DB errors at this time... */
   dirty = NO;