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37 lines
823 B
Go
37 lines
823 B
Go
//+build !hz_gb_2312
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package maddy
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import (
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"errors"
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"github.com/emersion/go-message/charset"
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"golang.org/x/text/encoding"
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)
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/*
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Disallow hz-gb-2312 encoding as it can trigger OOM crash.
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https://github.com/emersion/go-message/issues/95
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https://github.com/golang/go/issues/35118
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*/
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type dummyEncoding struct{}
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func (dummyEncoding) NewDecoder() *encoding.Decoder {
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return &encoding.Decoder{Transformer: dummyEncoding{}}
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}
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func (dummyEncoding) NewEncoder() *encoding.Encoder {
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return &encoding.Encoder{Transformer: dummyEncoding{}}
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}
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func (dummyEncoding) Reset() {}
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func (dummyEncoding) Transform(dst, src []byte, atEOF bool) (nDst, nSrc int, err error) {
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return 0, 0, errors.New("hz-gb-2312 decoding is disabled due to known issues")
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}
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func init() {
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charset.RegisterEncoding("hz-gb-2312", dummyEncoding{})
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}
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