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Auto detect NGinx X-Forwarded

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nicolas.dorier
2017-12-15 19:11:48 +09:00
parent e59678360c
commit d4dd6c84bc
1 changed files with 34 additions and 0 deletions
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34
BTCPayServer/Hosting/BTCpayMiddleware.cs
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@@ -62,6 +62,40 @@ namespace BTCPayServer.Hosting
else
httpContext.Request.Host = new HostString(_Options.ExternalUrl.Host, _Options.ExternalUrl.Port);
}
// NGINX pass X-Forwarded-Proto and X-Forwarded-Port, so let's use that to have better guess of the real domain
else
{
ushort? p = null;
if(httpContext.Request.Headers.TryGetValue("X-Forwarded-Proto", out StringValues proto))
{
var scheme = proto.SingleOrDefault();
if(scheme != null)
{
httpContext.Request.Scheme = scheme;
if (scheme == "http")
p = 80;
if (scheme == "https")
p = 443;
}
}
if (httpContext.Request.Headers.TryGetValue("X-Forwarded-Port", out StringValues port))
{
var portString = port.SingleOrDefault();
if(portString != null && ushort.TryParse(portString, out ushort pp))
{
p = pp;
}
}
if(p.HasValue)
{
bool isDefault = httpContext.Request.Scheme == "http" && p.Value == 80;
isDefault |= httpContext.Request.Scheme == "https" && p.Value == 443;
if (isDefault)
httpContext.Request.Host = new HostString(httpContext.Request.Host.Host);
else
httpContext.Request.Host = new HostString(httpContext.Request.Host.Host, p.Value);
}
}
httpContext.Request.Headers.TryGetValue("x-signature", out StringValues values);
var sig = values.FirstOrDefault();