private Task <IUser> SearchOrganizerAsync(Organizer organizer)
{
var taskCompletionSource = new TaskCompletionSource <IUser>();
var connection = OpenConnection();
var requestState = new SearchRequestState(connection, taskCompletionSource, organizer);
Task.Run(() => ExecuteSearchSafe(requestState));
return(taskCompletionSource.Task);
}
private void ExecuteSearchSafe(SearchRequestState requestState)
{
try
{
var searchQueue = StartUserSearch(requestState);
CompleteUserSearch(requestState, searchQueue);
}
catch (Exception e)
{
_logger.LogError(e, $"Error searching for an LDAP with the filter '{requestState.Filter}'");
requestState.SetNoResult();
}
finally
{
requestState.Dispose();
}
}
private LdapSearchQueue StartUserSearch(SearchRequestState requestState)
{
var searchConstraints =
new LdapSearchConstraints(_ldapConfiguration.Value.TimeoutInMilliseconds,
_ldapConfiguration.Value.TimeoutInSeconds,
LdapSearchConstraints.DerefNever,
1,
true,
1,
null,
20);
var attributes = new[] { "name", "givenname", "samaccountname", "mail" };
var searchQueue = requestState.Connection.Search(_ldapConfiguration.Value.SearchBase,
LdapConnection.ScopeSub,
requestState.Filter,
attributes,
false,
null,
searchConstraints);
return(searchQueue);
}
private void CompleteUserSearch(SearchRequestState requestState, LdapMessageQueue searchQueue)
{
var response = searchQueue.GetResponse();
if (!(response is LdapSearchResult searchResult))
{
_logger.LogTrace($"Received an unexpected result of type '{response?.GetType()}' from LDAP search.");
requestState.SetNoResult();
return;
}
if (searchResult.Entry == null)
{
_logger.LogTrace($"Could not find an LDAP user with the filter '{requestState.Filter}'");
requestState.SetNoResult();
return;
}
var user = User.FromLdapEntry(searchResult.Entry);
requestState.SetResult(user);
}