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25 lines
494 B
Go
25 lines
494 B
Go
package entry
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import (
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"regexp"
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"strconv"
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)
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var maxAgeExp = regexp.MustCompile(`maxage=(\d+)`)
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// ParseMaxAge parses the max age from the receiver parameter, "cache-control" header
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// returns seconds as int64
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// if header not found or parse failed then it returns -1
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func ParseMaxAge(header string) int64 {
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if header == "" {
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return -1
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}
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m := maxAgeExp.FindStringSubmatch(header)
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if len(m) == 2 {
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if v, err := strconv.Atoi(m[1]); err == nil {
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return int64(v)
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}
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}
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return -1
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}
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