|
- package iam
-
- import (
- "crypto/hmac"
- "crypto/sha256"
- "encoding/base64"
- "github.com/goamz/goamz/aws"
- "sort"
- "strings"
- )
-
- // ----------------------------------------------------------------------------
- // Version 2 signing (http://goo.gl/RSRp5)
-
- var b64 = base64.StdEncoding
-
- func sign(auth aws.Auth, method, path string, params map[string]string, host string) {
- params["AWSAccessKeyId"] = auth.AccessKey
- params["SignatureVersion"] = "2"
- params["SignatureMethod"] = "HmacSHA256"
- if auth.Token() != "" {
- params["SecurityToken"] = auth.Token()
- }
-
- var sarray []string
- for k, v := range params {
- sarray = append(sarray, aws.Encode(k)+"="+aws.Encode(v))
- }
- sort.StringSlice(sarray).Sort()
- joined := strings.Join(sarray, "&")
- payload := method + "\n" + host + "\n" + path + "\n" + joined
- hash := hmac.New(sha256.New, []byte(auth.SecretKey))
- hash.Write([]byte(payload))
- signature := make([]byte, b64.EncodedLen(hash.Size()))
- b64.Encode(signature, hash.Sum(nil))
-
- params["Signature"] = string(signature)
- }
|