public bool Update(string hostComponent, bool includeSubdomains, bool permanent, long maxAge)
{
if (maxAge == 0)
{
return(_innerStore.TryRemove(hostComponent, out _));
}
else
{
if (!TryFind(hostComponent, out var existing))
{
var referenceTime = DateTimeOffset.UtcNow;
_innerStore[hostComponent] = new HstsDomain(hostComponent, includeSubdomains, permanent, referenceTime, referenceTime.AddSeconds(maxAge));
return(true);
}
else
{
if (existing.IncludeSubdomains != includeSubdomains || existing.Permanent != permanent)
{
_innerStore[hostComponent] = existing.ApplyUpdate(includeSubdomains, permanent);
return(true);
}
}
}
return(false);
}
// TODO: Perf optimization in finding matching domain - probably store domains reversed as com.example.foo, then search by components
public bool TryFind(string hostComponent, out HstsDomain hstsDomain)
{
// Fetch applicable domain (direct match)
if (_innerStore.TryGetValue(hostComponent, out var domain) && domain.AppliesTo(hostComponent))
{
hstsDomain = domain;
return(true);
}
// Fetch applicable domain (full search)
foreach (var item in _innerStore)
{
if (item.Value.AppliesTo(hostComponent))
{
hstsDomain = item.Value;
return(true);
}
}
// No match
hstsDomain = null;
return(false);
}
