Partial Content从源站读取数据时验证本地缓存的Content-MD5是否一致

This commit is contained in:
GoEdgeLab
2024-05-07 17:27:10 +08:00
parent e5f1f42259
commit 7771cdcceb
7 changed files with 58 additions and 8 deletions

View File

@@ -12,16 +12,17 @@ import (
// PartialRanges 内容分区范围定义
type PartialRanges struct {
Version int `json:"version"` // 版本号
Ranges [][2]int64 `json:"ranges"` // 范围
BodySize int64 `json:"bodySize"` // 总长度
Version int `json:"version"` // 版本号
Ranges [][2]int64 `json:"ranges"` // 范围
BodySize int64 `json:"bodySize"` // 总长度
ContentMD5 string `json:"contentMD5"` // 内容md5
}
// NewPartialRanges 获取新对象
func NewPartialRanges(expiresAt int64) *PartialRanges {
return &PartialRanges{
Ranges: [][2]int64{},
Version: 1,
Version: 2,
}
}
@@ -46,6 +47,8 @@ func NewPartialRangesFromData(data []byte) (*PartialRanges, error) {
if commaIndex > 0 {
rs.Ranges = append(rs.Ranges, [2]int64{types.Int64(line[colonIndex+1 : commaIndex]), types.Int64(line[commaIndex+1:])})
}
case "m": // Content-MD5
rs.ContentMD5 = string(line[colonIndex+1:])
}
}
data = data[index+1:]
@@ -171,6 +174,9 @@ func (this *PartialRanges) FindRangeAtPosition(position int64) (r rangeutils.Ran
func (this *PartialRanges) String() string {
var s = "v:" + strconv.Itoa(this.Version) + "\n" + // version
"b:" + this.formatInt64(this.BodySize) + "\n" // bodySize
if len(this.ContentMD5) > 0 {
s += "m:" + this.ContentMD5 + "\n" // Content-MD5
}
for _, r := range this.Ranges {
s += "r:" + this.formatInt64(r[0]) + "," + this.formatInt64(r[1]) + "\n" // range
}