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Fixed: Changes in http redirect logic causing failed grabs and >25% cpu usage.

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This commit is contained in:
Leonardo Galli
2018-03-04 16:01:40 +01:00
parent 799a448544
commit a48793edd2
3 changed files with 34 additions and 18 deletions
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27
src/NzbDrone.Common/Http/HttpClient.cs
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@@ -45,36 +45,33 @@ namespace NzbDrone.Common.Http
public HttpResponse Execute(HttpRequest request)
{
var autoRedirectCount = 0;
var autoRedirectChain = new List<string>();
autoRedirectChain.Add(request.Url.ToString());
var response = ExecuteRequest(request);
while (response.StatusCode == HttpStatusCode.Moved ||
response.StatusCode == HttpStatusCode.MovedPermanently ||
response.StatusCode == HttpStatusCode.Found)
if (request.AllowAutoRedirect && response.HasHttpRedirect)
{
if (request.AllowAutoRedirect)
var autoRedirectChain = new List<string>();
autoRedirectChain.Add(request.Url.ToString());
do
{
request.Url += new HttpUri(response.Headers.GetSingleValue("Location"));
autoRedirectChain.Add(request.Url.ToString());
_logger.Trace("Redirected to {0}", request.Url);
autoRedirectCount++;
if (autoRedirectCount > 3)
if (autoRedirectChain.Count > 3)
{
throw new WebException($"Too many automatic redirections were attempted for {string.Join(" -> ", autoRedirectChain)}", WebExceptionStatus.ProtocolError);
}
response = ExecuteRequest(request);
}
else if (!RuntimeInfoBase.IsProduction)
{
_logger.Error("Server requested a redirect to [{0}]. Update the request URL to avoid this redirect.", response.Headers["Location"]);
break;
}
while (response.HasHttpRedirect);
}
if (response.HasHttpRedirect && !RuntimeInfoBase.IsProduction)
{
_logger.Error("Server requested a redirect to [{0}] while in developer mode. Update the request URL to avoid this redirect.", response.Headers["Location"]);
}
if (!request.SuppressHttpError && response.HasHttpError)