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Code Issues Releases Wiki Activity

only create bufferedreader when necessary

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This commit is contained in:
Darien Raymond
2018-08-17 16:27:35 +02:00
parent 5f8b64c646
commit b769e0cc5f
2 changed files with 20 additions and 7 deletions
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17
common/crypto/auth.go
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@@ -86,6 +86,7 @@ type AuthenticationReader struct {
auth Authenticator
reader *buf.BufferedReader
sizeParser ChunkSizeDecoder
sizeBytes []byte
transferType protocol.TransferType
padding PaddingLengthGenerator
size uint16
@@ -95,13 +96,20 @@ type AuthenticationReader struct {
}
func NewAuthenticationReader(auth Authenticator, sizeParser ChunkSizeDecoder, reader io.Reader, transferType protocol.TransferType, paddingLen PaddingLengthGenerator) *AuthenticationReader {
return &AuthenticationReader{
r := &AuthenticationReader{
auth: auth,
reader: &buf.BufferedReader{Reader: buf.NewReader(reader)},
sizeParser: sizeParser,
transferType: transferType,
padding: paddingLen,
sizeBytes: make([]byte, sizeParser.SizeBytes()),
}
if breader, ok := reader.(*buf.BufferedReader); ok {
breader.Direct = false
r.reader = breader
} else {
r.reader = &buf.BufferedReader{Reader: buf.NewReader(reader)}
}
return r
}
func (r *AuthenticationReader) readSize() (uint16, uint16, error) {
@@ -109,15 +117,14 @@ func (r *AuthenticationReader) readSize() (uint16, uint16, error) {
r.hasSize = false
return r.size, r.paddingLen, nil
}
sizeBytes := make([]byte, r.sizeParser.SizeBytes())
if _, err := io.ReadFull(r.reader, sizeBytes); err != nil {
if _, err := io.ReadFull(r.reader, r.sizeBytes); err != nil {
return 0, 0, err
}
var padding uint16
if r.padding != nil {
padding = r.padding.NextPaddingLen()
}
size, err := r.sizeParser.Decode(sizeBytes)
size, err := r.sizeParser.Decode(r.sizeBytes)
return size, padding, err
}