diff options
Diffstat (limited to 'vendor/github.com/goamz/goamz/exp/sdb/sign.go')
-rw-r--r-- | vendor/github.com/goamz/goamz/exp/sdb/sign.go | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/vendor/github.com/goamz/goamz/exp/sdb/sign.go b/vendor/github.com/goamz/goamz/exp/sdb/sign.go new file mode 100644 index 000000000..040ed5385 --- /dev/null +++ b/vendor/github.com/goamz/goamz/exp/sdb/sign.go @@ -0,0 +1,54 @@ +package sdb + +import ( + "crypto/hmac" + "crypto/sha256" + "encoding/base64" + "github.com/goamz/goamz/aws" + "net/http" + "net/url" + "sort" + "strings" +) + +var b64 = base64.StdEncoding + +// ---------------------------------------------------------------------------- +// SimpleDB signing (http://goo.gl/CaY81) + +func sign(auth aws.Auth, method, path string, params url.Values, headers http.Header) { + var host string + for k, v := range headers { + k = strings.ToLower(k) + switch k { + case "host": + host = v[0] + } + } + + // set up some defaults used for signing the request + params["AWSAccessKeyId"] = []string{auth.AccessKey} + params["SignatureVersion"] = []string{"2"} + params["SignatureMethod"] = []string{"HmacSHA256"} + if auth.Token() != "" { + params["SecurityToken"] = []string{auth.Token()} + } + + // join up all the incoming params + var sarray []string + for k, v := range params { + sarray = append(sarray, aws.Encode(k)+"="+aws.Encode(v[0])) + } + sort.StringSlice(sarray).Sort() + joined := strings.Join(sarray, "&") + + // create the payload, sign it and create the signature + payload := strings.Join([]string{method, host, "/", joined}, "\n") + 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)) + + // add the signature to the outgoing params + params["Signature"] = []string{string(signature)} +} |