forked from TrueCloudLab/frostfs-api-go
86 lines
1.9 KiB
Go
86 lines
1.9 KiB
Go
package service
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import (
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"io"
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)
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type extHdrSrcWrapper struct {
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extHdrSrc ExtendedHeadersSource
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}
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// CutMeta returns current value and sets RequestMetaHeader to empty value.
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func (m *RequestMetaHeader) CutMeta() RequestMetaHeader {
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cp := *m
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m.Reset()
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return cp
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}
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// RestoreMeta sets current RequestMetaHeader to passed value.
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func (m *RequestMetaHeader) RestoreMeta(v RequestMetaHeader) {
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*m = v
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}
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// ExtendedHeadersSignedData wraps passed ExtendedHeadersSource and returns SignedDataSource.
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func ExtendedHeadersSignedData(headers ExtendedHeadersSource) SignedDataSource {
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return &extHdrSrcWrapper{
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extHdrSrc: headers,
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}
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}
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// SignedData returns extended headers in a binary representation.
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func (s extHdrSrcWrapper) SignedData() ([]byte, error) {
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return SignedDataFromReader(s)
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}
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// SignedDataSize returns the length of extended headers slice.
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func (s extHdrSrcWrapper) SignedDataSize() (res int) {
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if s.extHdrSrc != nil {
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for _, h := range s.extHdrSrc.ExtendedHeaders() {
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if h != nil {
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res += len(h.Key()) + len(h.Value())
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}
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}
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}
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return
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}
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// ReadSignedData copies a binary representation of the extended headers to passed buffer.
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//
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// If buffer length is less than required, io.ErrUnexpectedEOF returns.
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func (s extHdrSrcWrapper) ReadSignedData(p []byte) (int, error) {
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sz := s.SignedDataSize()
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if len(p) < sz {
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return 0, io.ErrUnexpectedEOF
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}
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if s.extHdrSrc != nil {
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off := 0
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for _, h := range s.extHdrSrc.ExtendedHeaders() {
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if h == nil {
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continue
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}
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off += copy(p[off:], []byte(h.Key()))
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off += copy(p[off:], []byte(h.Value()))
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}
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}
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return sz, nil
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}
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// SetK is a K field setter.
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func (m *RequestExtendedHeader_KV) SetK(v string) {
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m.K = v
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}
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// SetV is a V field setter.
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func (m *RequestExtendedHeader_KV) SetV(v string) {
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m.V = v
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}
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// SetHeaders is a Headers field setter.
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func (m *RequestExtendedHeader) SetHeaders(v []RequestExtendedHeader_KV) {
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m.Headers = v
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}
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