static async Task <Certificate> GetCertificateAsync(Plugin.Type type, Client client)
{
if (!CertificateCache.TryGetValue(type, out var ret))
{
using var resp = await client.SendAsync("GET", $"https://fnbot.shop/api/plugincert?t={type:X}");
ret = new Certificate(resp.Stream);
CertificateCache[type] = ret;
switch (await ret.VerifyAsync(await GetCertificateAsync((Plugin.Type) 0xFF, client), client))
{
case Certificate.VerifyError.INVALID:
throw new SecurityException("Parent certificate is invalid");
case Certificate.VerifyError.EXPIRED:
throw new SecurityException("Parent certificate is expired");
case Certificate.VerifyError.REVOKED:
throw new SecurityException("Parent certificate is revoked");
}
}
return(ret);
}
// Helper Methods
static Type GetPluginType(Plugin.Type type) =>
type switch
{