private async Task ProcessAcmeChallenge(HttpContext context)
{
var path = context.Request.Path.ToString();
_logger.LogDebug("Challenge invoked: {challengePath}", path);
var requestedToken = path.Substring($"{MagicPrefix}/".Length);
var allChallenges = await _persistenceService.GetPersistedChallengesAsync();
var matchingChallenge = allChallenges.FirstOrDefault(x => x.Token == requestedToken);
if (matchingChallenge == null)
{
_logger.LogInformation("The given challenge did not match {challengePath} among {allChallenges}", path, allChallenges);
await _next(context);
return;
}
// token response is always in ASCII so char count would be equal to byte count here
context.Response.ContentLength = matchingChallenge.Response.Length;
context.Response.ContentType = "application/octet-stream";
await context.Response.WriteAsync(
text : matchingChallenge.Response,
cancellationToken : context.RequestAborted);
}
public async Task InvokeAsync(
HttpContext context)
{
var path = context.Request.Path.ToString();
const string magicPrefix = "/.well-known/acme-challenge/";
if (path.StartsWith(magicPrefix))
{
_logger.LogDebug("Challenge invoked: {0}", path);
var requestedToken = path.Substring(magicPrefix.Length);
var allChallenges = await _persistenceService.GetPersistedChallengesAsync();
var matchingChallenge = allChallenges.FirstOrDefault(x => x.Token == requestedToken);
if (matchingChallenge == null)
{
_logger.LogInformation("The given challenge did not match: {0}", path);
await _next(context);
return;
}
await context.Response.WriteAsync(matchingChallenge.Response);
return;
}
await _next(context);
}