internal static string GenerateUniqueAliasForSiteMailbox(IRecipientSession recipientSession, OrganizationId organizationId, string preferredAlias, string prefix, bool isMicrosoftHostedOnlyDatacenter, Task.TaskVerboseLoggingDelegate logHandler, Task.ErrorLoggerDelegate writeError)
{
string text = WindowsLiveIDLocalPartConstraint.RemoveInvalidPartOfWindowsLiveID(preferredAlias);
if (!string.IsNullOrEmpty(text) && text.Length > 3)
{
logHandler(Strings.VerboseGenerateAliasBySiteDisplayName(preferredAlias));
text = RecipientTaskHelper.GenerateUniqueAlias(recipientSession, organizationId, (!string.IsNullOrEmpty(prefix)) ? (prefix + text) : text, logHandler, 63);
}
else
{
int num = 1000;
if (string.IsNullOrEmpty(prefix))
{
prefix = (isMicrosoftHostedOnlyDatacenter ? "SMO-" : "SM-");
}
do
{
text = TeamMailboxHelper.GenerateRandomString();
text = prefix + text;
logHandler(Strings.VerboseGenerateAliasByRandomString(preferredAlias, text));
if (RecipientTaskHelper.IsAliasUnique(recipientSession, organizationId, null, text, logHandler, writeError, ExchangeErrorCategory.Client))
{
break;
}
text = string.Empty;
}while (num-- > 0);
}
if (string.IsNullOrEmpty(text))
{
writeError(new ErrorCannotGenerateSiteMailboxAliasException(), ExchangeErrorCategory.Client, null);
}
return(text);
}