public static bool Resolve(this GroupMembershipItem gm, IList <Group> groups, IList <User> users, bool force = false)
{
if (gm.Group == null || gm.Member == null || force)
{
try
{
if (gm.Group == null || force)
{
gm.Group = groups.GetByUId <Group>(gm.GroupUId);
}
if (gm.Member == null || force)
{
gm.Member = gm.IsMemberUser ?
users?.GetByUId <SecurityPrincipalBase>(gm.MemberUId) :
groups.GetByUId <SecurityPrincipalBase>(gm.MemberUId);
}
return(gm.Group != null && gm.Member != null);
}
catch { return(false); }
}
else
{
return(true);
}
}
public static List <Group> GetGroupHierarchy(this IEnumerable <GroupMembershipItem> groupMembershipItems, Group g)
{
List <Group> groups = new List <Group>();
Stack <Group> parentGroups = new Stack <Group>();
GroupEqualityComparer comparer = new GroupEqualityComparer();
Stack <GroupMembershipItem> parentItems = new Stack <GroupMembershipItem>();
IEnumerable <GroupMembershipItem> parents = groupMembershipItems.Where(sp => sp.MemberUId == g.UId);
foreach (GroupMembershipItem gmi in parents)
{
parentItems.Push(gmi);
}
if (parentItems.Count > 0)
{
while (parentItems.Count > 0)
{
GroupMembershipItem p = parentItems.Pop();
IEnumerable <GroupMembershipItem> ascendants = groupMembershipItems.Where(sp => sp.MemberUId == p.GroupUId);
int count = 0;
foreach (GroupMembershipItem gmi in ascendants)
{
parentItems.Push(gmi);
count++;
}
if (count == 0)
{
if (!groups.Contains(p.Group, comparer))
{
parentGroups.Push(p.Group);
groups.Add(p.Group);
}
}
}
}
else
{
parentGroups.Push(g);
groups.Add(g);
}
while (parentGroups.Count > 0)
{
Group p = parentGroups.Pop();
IEnumerable <GroupMembershipItem> descendants = groupMembershipItems.Where(gmi => gmi.GroupUId == p.UId && !gmi.IsMemberUser);
foreach (GroupMembershipItem chi in descendants)
{
Group ch = chi.Member as Group;
if (!p.Groups.Contains(ch, comparer))
{
p.Groups.Add(ch);
parentGroups.Push(ch);
}
}
}
return(groups);
}
public static bool ContainsItem(this IEnumerable <GroupMembershipItem> groupMembershipItems, GroupMembershipItem item)
{
return(groupMembershipItems.Contains(item, new GroupMembershipEqualityComparer()));
}
public static GroupMembershipItem GetByGroupAndMemberOrDefault(this IEnumerable <GroupMembershipItem> groupMembershipItems, GroupMembershipItem groupMembershipItem)
{
return(groupMembershipItems.SingleOrDefault(
gmi => gmi.GroupUId == groupMembershipItem.GroupUId && gmi.MemberUId == groupMembershipItem.MemberUId));
}
public static IEnumerable <GroupMembershipItem> GetGroupMembershipHierarchy(this IEnumerable <GroupMembershipItem> groupMembershipItems,
Guid memberUId, bool includeDisabledMembership, IList <Group> groups, IList <User> users, bool forceResolution = false)
{
List <GroupMembershipItem> result = new List <GroupMembershipItem>();
IEnumerable <GroupMembershipItem> membership = groupMembershipItems.Where(item => item.MemberUId == memberUId);
List <GroupMembershipItem> items = new List <GroupMembershipItem>();
foreach (GroupMembershipItem m in membership)
{
bool ok = includeDisabledMembership;
if (!ok)
{
if (m.Resolve(groups, users, forceResolution))
{
ok = m.Group.IsEnabled;
}
}
if (ok)
{
result.Add(m);
items.Add(m);
}
}
foreach (GroupMembershipItem item in items)
{
Stack <GroupMembershipItem> parentItems = new Stack <GroupMembershipItem>();
IEnumerable <GroupMembershipItem> parents = groupMembershipItems.Where(sp => sp.MemberUId == item.GroupUId);
foreach (GroupMembershipItem m in parents)
{
bool ok = includeDisabledMembership;
if (!ok)
{
if (m.Resolve(groups, users, forceResolution))
{
ok = m.Group.IsEnabled;
}
}
if (ok)
{
result.Add(m);
parentItems.Push(m);
}
}
while (parentItems.Count > 0)
{
GroupMembershipItem p = parentItems.Pop();
IEnumerable <GroupMembershipItem> ascendants = groupMembershipItems.Where(sp => sp.MemberUId == p.GroupUId);
foreach (GroupMembershipItem m in ascendants)
{
bool ok = includeDisabledMembership;
if (!ok)
{
if (m.Resolve(groups, users, forceResolution))
{
ok = m.Group.IsEnabled;
}
}
if (ok)
{
result.Add(m);
parentItems.Push(m);
}
}
}
}
return(result);
}
