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Fix connection reuse in splithttp HTTP/1.1 (#3485)
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parent
079d0bd8a9
commit
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@ -1,6 +1,7 @@
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package splithttp
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import (
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"bytes"
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"context"
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gotls "crypto/tls"
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"io"
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@ -263,6 +264,7 @@ func Dial(ctx context.Context, dest net.Destination, streamSettings *internet.Me
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return
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}
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req.ContentLength = int64(chunk.Len())
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req.Header = transportConfiguration.GetRequestHeader()
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if httpClient.isH2 {
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@ -280,11 +282,19 @@ func Dial(ctx context.Context, dest net.Destination, streamSettings *internet.Me
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return
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}
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} else {
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var err error
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var uploadConn any
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for i := 0; i < 5; i++ {
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// stringify the entire HTTP/1.1 request so it can be
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// safely retried. if instead req.Write is called multiple
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// times, the body is already drained after the first
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// request
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requestBytes := new(bytes.Buffer)
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common.Must(req.Write(requestBytes))
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for {
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uploadConn = httpClient.uploadRawPool.Get()
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if uploadConn == nil {
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newConnection := uploadConn == nil
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if newConnection {
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uploadConn, err = httpClient.dialUploadConn(context.WithoutCancel(ctx))
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if err != nil {
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errors.LogInfoInner(ctx, err, "failed to connect upload")
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@ -293,18 +303,21 @@ func Dial(ctx context.Context, dest net.Destination, streamSettings *internet.Me
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}
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}
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err = req.Write(uploadConn.(net.Conn))
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_, err = uploadConn.(net.Conn).Write(requestBytes.Bytes())
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// if the write failed, we try another connection from
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// the pool, until the write on a new connection fails.
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// failed writes to a pooled connection are normal when
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// the connection has been closed in the meantime.
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if err == nil {
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break
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} else if newConnection {
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errors.LogInfoInner(ctx, err, "failed to send upload")
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uploadPipeReader.Interrupt()
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return
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}
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}
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if err != nil {
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errors.LogInfoInner(ctx, err, "failed to send upload")
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uploadPipeReader.Interrupt()
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return
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}
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httpClient.uploadRawPool.Put(uploadConn)
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}
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}()
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