30 lines
708 B
Go
30 lines
708 B
Go
package readers
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import "io"
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// noClose is used to wrap an io.Reader to stop it being upgraded
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type noClose struct {
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in io.Reader
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}
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// Read implements io.Closer by passing it straight on
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func (nc noClose) Read(p []byte) (n int, err error) {
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return nc.in.Read(p)
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}
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// NoCloser makes sure that the io.Reader passed in can't upgraded to
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// an io.Closer.
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//
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// This is for use with http.NewRequest to make sure the body doesn't
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// get upgraded to an io.Closer and the body closed unexpectedly.
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func NoCloser(in io.Reader) io.Reader {
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if in == nil {
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return in
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}
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// if in doesn't implement io.Closer, just return it
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if _, canClose := in.(io.Closer); !canClose {
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return in
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}
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return noClose{in: in}
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}
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