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48 lines
1.1 KiB
48 lines
1.1 KiB
package oss
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import (
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"bytes"
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"sort"
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)
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// headerSorter defines the key-value structure for storing the sorted data in signHeader.
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type headerSorter struct {
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Keys []string
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Vals []string
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}
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// newHeaderSorter is an additional function for function SignHeader.
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func newHeaderSorter(m map[string]string) *headerSorter {
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hs := &headerSorter{
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Keys: make([]string, 0, len(m)),
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Vals: make([]string, 0, len(m)),
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}
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for k, v := range m {
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hs.Keys = append(hs.Keys, k)
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hs.Vals = append(hs.Vals, v)
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}
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return hs
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}
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// Sort is an additional function for function SignHeader.
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func (hs *headerSorter) Sort() {
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sort.Sort(hs)
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}
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// Len is an additional function for function SignHeader.
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func (hs *headerSorter) Len() int {
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return len(hs.Vals)
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}
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// Less is an additional function for function SignHeader.
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func (hs *headerSorter) Less(i, j int) bool {
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return bytes.Compare([]byte(hs.Keys[i]), []byte(hs.Keys[j])) < 0
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}
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// Swap is an additional function for function SignHeader.
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func (hs *headerSorter) Swap(i, j int) {
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hs.Vals[i], hs.Vals[j] = hs.Vals[j], hs.Vals[i]
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hs.Keys[i], hs.Keys[j] = hs.Keys[j], hs.Keys[i]
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}
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