// Advance the enumerator to the next principal in the result set, pulling in additional pages
// of results (or ranges of attribute values) as needed.
// Returns true if successful, false if no more results to return.
internal override bool MoveNext()
{
GlobalDebug.WriteLineIf(GlobalDebug.Info, "SAMGroupsSet", "MoveNext");
_atBeginning = false;
bool f = _groupsEnumerator.MoveNext();
if (f)
{
// Got a group. Create a DirectoryEntry for it.
// Clone the ctxBase to pick up its credentials, then build an appropriate path.
UnsafeNativeMethods.IADs nativeMember = (UnsafeNativeMethods.IADs)_groupsEnumerator.Current;
// We do this, rather than using the DirectoryEntry constructor that takes a native IADs object,
// is so the credentials get transferred to the new DirectoryEntry. If we just use the native
// object constructor, the native object will have the right credentials, but the DirectoryEntry
// will have default (null) credentials, which it'll use anytime it needs to use credentials.
DirectoryEntry de = SDSUtils.BuildDirectoryEntry(
nativeMember.ADsPath,
_storeCtx.Credentials,
_storeCtx.AuthTypes);
_current = de;
}
return(f);
}
internal override bool MoveNext()
{
this.atBeginning = false;
bool flag = this.groupsEnumerator.MoveNext();
if (flag)
{
UnsafeNativeMethods.IADs current = (UnsafeNativeMethods.IADs) this.groupsEnumerator.Current;
DirectoryEntry directoryEntry = SDSUtils.BuildDirectoryEntry(current.ADsPath, this.storeCtx.Credentials, this.storeCtx.AuthTypes);
this.current = directoryEntry;
}
return(flag);
}
internal override bool Matches(DirectoryEntry groupDE)
{
bool flag;
if (groupDE.Properties["objectSid"] == null || groupDE.Properties["objectSid"].Count == 0)
{
return(false);
}
else
{
UnsafeNativeMethods.IADsGroup nativeObject = (UnsafeNativeMethods.IADsGroup)groupDE.NativeObject;
UnsafeNativeMethods.IADsMembers aDsMember = nativeObject.Members();
IEnumerator enumerator = ((IEnumerable)aDsMember).GetEnumerator();
try
{
while (enumerator.MoveNext())
{
UnsafeNativeMethods.IADs current = (UnsafeNativeMethods.IADs)enumerator.Current;
DirectoryEntry directoryEntry = new DirectoryEntry(current);
if (directoryEntry.Properties["objectSid"] == null || directoryEntry.Properties["objectSid"].Count == 0)
{
continue;
}
byte[] value = (byte[])directoryEntry.Properties["objectSid"].Value;
if (!Utils.AreBytesEqual(value, this.memberSidToMatch))
{
continue;
}
flag = true;
return(flag);
}
return(false);
}
finally
{
IDisposable disposable = enumerator as IDisposable;
if (disposable != null)
{
disposable.Dispose();
}
}
return(flag);
}
}
private bool MoveNextLocal()
{
bool needToRetry;
do
{
needToRetry = false;
bool f = _membersEnumerator.MoveNext();
if (f) // got a value
{
GlobalDebug.WriteLineIf(GlobalDebug.Info, "SAMMembersSet", "MoveNextLocal: got a value from the enumerator");
UnsafeNativeMethods.IADs nativeMember = (UnsafeNativeMethods.IADs)_membersEnumerator.Current;
// If we encountered a group member corresponding to a fake principal such as
// NT AUTHORITY/NETWORK SERVICE, construct and prepare to return the fake principal.
byte[] sid = (byte[])nativeMember.Get("objectSid");
SidType sidType = Utils.ClassifySID(sid);
if (sidType == SidType.FakeObject)
{
GlobalDebug.WriteLineIf(GlobalDebug.Info, "SAMMembersSet", "MoveNextLocal: fake principal, sid={0}", Utils.ByteArrayToString(sid));
_currentFakePrincipal = _storeCtx.ConstructFakePrincipalFromSID(sid);
_current = null;
_currentForeign = null;
if (_foreignResultSet != null)
{
_foreignResultSet.Dispose();
}
_foreignResultSet = null;
return(true);
}
// We do this, rather than using the DirectoryEntry constructor that takes a native IADs object,
// is so the credentials get transferred to the new DirectoryEntry. If we just use the native
// object constructor, the native object will have the right credentials, but the DirectoryEntry
// will have default (null) credentials, which it'll use anytime it needs to use credentials.
DirectoryEntry de = SDSUtils.BuildDirectoryEntry(
_storeCtx.Credentials,
_storeCtx.AuthTypes);
if (sidType == SidType.RealObjectFakeDomain)
{
// Transform the "WinNT://BUILTIN/foo" path to "WinNT://machineName/foo"
string builtinADsPath = nativeMember.ADsPath;
UnsafeNativeMethods.Pathname pathCracker = new UnsafeNativeMethods.Pathname();
UnsafeNativeMethods.IADsPathname pathName = (UnsafeNativeMethods.IADsPathname)pathCracker;
pathName.Set(builtinADsPath, 1 /* ADS_SETTYPE_FULL */);
// Build the "WinNT://" portion of the new path
StringBuilder adsPath = new StringBuilder();
adsPath.Append("WinNT://");
//adsPath.Append(pathName.Retrieve(9 /*ADS_FORMAT_SERVER */));
// Build the "WinNT://machineName/" portion of the new path
adsPath.Append(_storeCtx.MachineUserSuppliedName);
adsPath.Append('/');
// Build the "WinNT://machineName/foo" portion of the new path
int cElements = pathName.GetNumElements();
Debug.Assert(cElements >= 2); // "WinNT://BUILTIN/foo" == 2 elements
// Note that the ADSI WinNT provider indexes them backwards, e.g., in
// "WinNT://BUILTIN/A/B", BUILTIN == 2, A == 1, B == 0.
for (int i = cElements - 2; i >= 0; i--)
{
adsPath.Append(pathName.GetElement(i));
adsPath.Append('/');
}
adsPath.Remove(adsPath.Length - 1, 1); // remove the trailing "/"
de.Path = adsPath.ToString();
GlobalDebug.WriteLineIf(GlobalDebug.Info, "SAMMembersSet", "MoveNextLocal: fake domain: {0} --> {1}", builtinADsPath, adsPath);
}
else
{
Debug.Assert(sidType == SidType.RealObject);
de.Path = nativeMember.ADsPath;
GlobalDebug.WriteLineIf(GlobalDebug.Info, "SAMMembersSet", "MoveNextLocal: real domain {0}", de.Path);
}
// Debug.Assert(Utils.AreBytesEqual(sid, (byte[]) de.Properties["objectSid"].Value));
if (IsLocalMember(sid))
{
// If we're processing recursively, and the member is a group,
// we don't return it but instead treat it as something to recursively
// visit (expand) later.
if (!_recursive || !SAMUtils.IsOfObjectClass(de, "Group"))
{
GlobalDebug.WriteLineIf(GlobalDebug.Info, "SAMMembersSet", "MoveNextLocal: setting current to {0}", de.Path);
// Not recursive, or not a group. Return the principal.
_current = de;
_currentFakePrincipal = null;
_currentForeign = null;
if (_foreignResultSet != null)
{
_foreignResultSet.Dispose();
}
_foreignResultSet = null;
return(true);
}
else
{
GlobalDebug.WriteLineIf(GlobalDebug.Info, "SAMMembersSet", "MoveNextLocal: adding {0} to groupsToVisit", de.Path);
// Save off for later, if we haven't done so already.
if (!_groupsVisited.Contains(de.Path) && !_groupsToVisit.Contains(de.Path))
{
_groupsToVisit.Add(de.Path);
}
needToRetry = true;
continue;
}
}
else
{
// It's a foreign principal (e..g, an AD user or group).
// Save it off for later.
GlobalDebug.WriteLineIf(GlobalDebug.Info, "SAMMembersSet", "MoveNextLocal: adding {0} to foreignMembers", de.Path);
_foreignMembers.Add(de);
needToRetry = true;
continue;
}
}
else
{
// We reached the end of this group's membership.
// If we're supposed to be recursively expanding, we need to expand
// any remaining non-foreign groups we earlier visited.
if (_recursive)
{
GlobalDebug.WriteLineIf(GlobalDebug.Info, "SAMMembersSet", "MoveNextLocal: recursive processing, groupsToVisit={0}", _groupsToVisit.Count);
if (_groupsToVisit.Count > 0)
{
// Pull off the next group to visit
string groupPath = _groupsToVisit[0];
GlobalDebug.WriteLineIf(GlobalDebug.Info, "SAMMembersSet", "MoveNextLocal: recursively processing {0}", groupPath);
_groupsToVisit.RemoveAt(0);
_groupsVisited.Add(groupPath);
// Set up for the next round of enumeration
DirectoryEntry de = SDSUtils.BuildDirectoryEntry(
groupPath,
_storeCtx.Credentials,
_storeCtx.AuthTypes);
_group = (UnsafeNativeMethods.IADsGroup)de.NativeObject;
UnsafeNativeMethods.IADsMembers iADsMembers = _group.Members();
_membersEnumerator = ((IEnumerable)iADsMembers).GetEnumerator();
// and go on to the first member of this new group
needToRetry = true;
continue;
}
}
}
}while (needToRetry);
return(false);
}
private bool MoveNextLocal()
{
bool flag;
do
{
flag = false;
bool flag1 = this.membersEnumerator.MoveNext();
if (!flag1)
{
if (!this.recursive || this.groupsToVisit.Count <= 0)
{
continue;
}
string item = this.groupsToVisit[0];
this.groupsToVisit.RemoveAt(0);
this.groupsVisited.Add(item);
DirectoryEntry directoryEntry = SDSUtils.BuildDirectoryEntry(item, this.storeCtx.Credentials, this.storeCtx.AuthTypes);
this.@group = (UnsafeNativeMethods.IADsGroup)directoryEntry.NativeObject;
UnsafeNativeMethods.IADsMembers aDsMember = [email protected]();
this.membersEnumerator = ((IEnumerable)aDsMember).GetEnumerator();
flag = true;
}
else
{
UnsafeNativeMethods.IADs current = (UnsafeNativeMethods.IADs) this.membersEnumerator.Current;
byte[] numArray = (byte[])current.Get("objectSid");
SidType sidType = Utils.ClassifySID(numArray);
if (sidType != SidType.FakeObject)
{
DirectoryEntry aDsPath = SDSUtils.BuildDirectoryEntry(this.storeCtx.Credentials, this.storeCtx.AuthTypes);
if (sidType != SidType.RealObjectFakeDomain)
{
aDsPath.Path = current.ADsPath;
}
else
{
string str = current.ADsPath;
UnsafeNativeMethods.Pathname pathname = new UnsafeNativeMethods.Pathname();
UnsafeNativeMethods.IADsPathname aDsPathname = (UnsafeNativeMethods.IADsPathname)pathname;
aDsPathname.Set(str, 1);
StringBuilder stringBuilder = new StringBuilder();
stringBuilder.Append("WinNT://");
stringBuilder.Append(this.storeCtx.MachineUserSuppliedName);
stringBuilder.Append("/");
int numElements = aDsPathname.GetNumElements();
for (int i = numElements - 2; i >= 0; i--)
{
stringBuilder.Append(aDsPathname.GetElement(i));
stringBuilder.Append("/");
}
stringBuilder.Remove(stringBuilder.Length - 1, 1);
aDsPath.Path = stringBuilder.ToString();
}
if (!this.IsLocalMember(numArray))
{
this.foreignMembers.Add(aDsPath);
flag = true;
}
else
{
if (!this.recursive || !SAMUtils.IsOfObjectClass(aDsPath, "Group"))
{
this.current = aDsPath;
this.currentFakePrincipal = null;
this.currentForeign = null;
if (this.foreignResultSet != null)
{
this.foreignResultSet.Dispose();
}
this.foreignResultSet = null;
return(true);
}
else
{
if (!this.groupsVisited.Contains(aDsPath.Path) && !this.groupsToVisit.Contains(aDsPath.Path))
{
this.groupsToVisit.Add(aDsPath.Path);
}
flag = true;
}
}
}
else
{
this.currentFakePrincipal = this.storeCtx.ConstructFakePrincipalFromSID(numArray);
this.current = null;
this.currentForeign = null;
if (this.foreignResultSet != null)
{
this.foreignResultSet.Dispose();
}
this.foreignResultSet = null;
return(true);
}
}
}while (flag);
return(false);
}
