40 lines
1 KiB
Go
40 lines
1 KiB
Go
package util
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import (
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"crypto/hmac"
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"crypto/sha1"
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"encoding/base64"
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"net/url"
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"strings"
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)
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//CreateSignature creates signature for string following Aliyun rules
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func CreateSignature(stringToSignature, accessKeySecret string) string {
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// Crypto by HMAC-SHA1
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hmacSha1 := hmac.New(sha1.New, []byte(accessKeySecret))
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hmacSha1.Write([]byte(stringToSignature))
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sign := hmacSha1.Sum(nil)
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// Encode to Base64
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base64Sign := base64.StdEncoding.EncodeToString(sign)
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return base64Sign
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}
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func percentReplace(str string) string {
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str = strings.Replace(str, "+", "%20", -1)
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str = strings.Replace(str, "*", "%2A", -1)
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str = strings.Replace(str, "%7E", "~", -1)
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return str
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}
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// CreateSignatureForRequest creates signature for query string values
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func CreateSignatureForRequest(method string, values *url.Values, accessKeySecret string) string {
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canonicalizedQueryString := percentReplace(values.Encode())
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stringToSign := method + "&%2F&" + url.QueryEscape(canonicalizedQueryString)
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return CreateSignature(stringToSign, accessKeySecret)
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}
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