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28 lines
652 B
Go
28 lines
652 B
Go
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package _123Open
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import (
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"crypto/md5"
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"fmt"
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"math/rand"
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"net/url"
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"time"
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)
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func SignURL(originURL, privateKey string, uid uint64, validDuration time.Duration) (string, error) {
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if privateKey == "" {
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return originURL, nil
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}
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parsed, err := url.Parse(originURL)
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if err != nil {
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return "", err
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}
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ts := time.Now().Add(validDuration).Unix()
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randInt := rand.Int()
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signature := fmt.Sprintf("%d-%d-%d-%x", ts, randInt, uid, md5.Sum([]byte(fmt.Sprintf("%s-%d-%d-%d-%s",
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parsed.Path, ts, randInt, uid, privateKey))))
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query := parsed.Query()
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query.Add("auth_key", signature)
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parsed.RawQuery = query.Encode()
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return parsed.String(), nil
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}
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