75 lines
1.4 KiB
Go
75 lines
1.4 KiB
Go
// Copyright 2023 GoEdge CDN goedge.cdn@gmail.com. All rights reserved. Official site: https://goedge.cn .
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//go:build plus
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package oss
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import (
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rangeutils "github.com/TeaOSLab/EdgeNode/internal/utils/ranges"
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"strconv"
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"strings"
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)
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func httpRequestParseRangeHeader(rangeValue string) (result []rangeutils.Range, ok bool) {
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// 参考RFC：https://tools.ietf.org/html/rfc7233
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index := strings.Index(rangeValue, "=")
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if index == -1 {
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return
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}
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unit := rangeValue[:index]
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if unit != "bytes" {
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return
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}
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var rangeSetString = rangeValue[index+1:]
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if len(rangeSetString) == 0 {
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ok = true
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return
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}
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var pieces = strings.Split(rangeSetString, ", ")
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for _, piece := range pieces {
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index = strings.Index(piece, "-")
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if index == -1 {
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return
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}
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first := piece[:index]
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firstInt := int64(-1)
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var err error
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last := piece[index+1:]
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var lastInt = int64(-1)
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if len(first) > 0 {
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firstInt, err = strconv.ParseInt(first, 10, 64)
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if err != nil {
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return
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}
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if len(last) > 0 {
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lastInt, err = strconv.ParseInt(last, 10, 64)
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if err != nil {
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return
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}
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if lastInt < firstInt {
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return
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}
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}
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} else {
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if len(last) == 0 {
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return
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}
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lastInt, err = strconv.ParseInt(last, 10, 64)
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if err != nil {
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return
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}
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lastInt = -lastInt
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}
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result = append(result, [2]int64{firstInt, lastInt})
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}
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ok = true
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return
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}
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