Esempio n. 1
0
File: sign.go Progetto: hughe/goamz
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()
	}

	// AWS specifies that the parameters in a signed request must
	// be provided in the natural order of the keys. This is distinct
	// from the natural order of the encoded value of key=value.
	// Percent and equals affect the sorting order.
	var keys, sarray []string
	for k, _ := range params {
		keys = append(keys, k)
	}
	sort.Strings(keys)
	for _, k := range keys {
		sarray = append(sarray, aws.Encode(k)+"="+aws.Encode(params[k]))
	}
	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)
}
Esempio n. 2
0
File: sign.go Progetto: hughe/goamz
func sign(auth aws.Auth, method, path string, params map[string]string, host string) {
	params["AWSAccessKeyId"] = auth.AccessKey
	params["SignatureVersion"] = "2"
	params["SignatureMethod"] = "HmacSHA256"

	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)
}
Esempio n. 3
0
File: sign.go Progetto: hughe/goamz
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)}
}
Esempio n. 4
0
func (s *S) TestEncode(c *C) {
	c.Assert(aws.Encode("foo"), Equals, "foo")
	c.Assert(aws.Encode("/"), Equals, "%2F")
}
Esempio n. 5
0
File: sqs.go Progetto: hughe/goamz
func (s *SQS) query(queueUrl string, params map[string]string, resp interface{}) (err error) {
	params["Version"] = API_VERSION
	params["Timestamp"] = time.Now().In(time.UTC).Format(time.RFC3339)
	var url_ *url.URL
	var path string

	switch {
	// fully qualified queueUrl
	case strings.HasPrefix(queueUrl, "http"):
		url_, err = url.Parse(queueUrl)
		path = queueUrl[len(s.Region.SQSEndpoint):]
		// relative queueUrl
	case strings.HasPrefix(queueUrl, "/"):
		url_, err = url.Parse(s.Region.SQSEndpoint + queueUrl)
		path = queueUrl
		// zero-value for queueUrl
	default:
		url_, err = url.Parse(s.Region.SQSEndpoint)
		path = "/"
	}

	if err != nil {
		return err
	}

	if s.Auth.Token() != "" {
		params["SecurityToken"] = s.Auth.Token()
	}

	var r *http.Response
	if s.Region.Name == "cn-north-1" {
		var sarray []string
		for k, v := range params {
			sarray = append(sarray, aws.Encode(k)+"="+aws.Encode(v))
		}

		req, err := http.NewRequest("GET", fmt.Sprintf("%s?%s", url_, strings.Join(sarray, "&")), nil)
		if err != nil {
			return err
		}
		signer := aws.NewV4Signer(s.Auth, "sqs", s.Region)
		signer.Sign(req)
		client := http.Client{}
		r, err = client.Do(req)
	} else {
		sign(s.Auth, "GET", path, params, url_.Host)
		url_.RawQuery = multimap(params).Encode()
		r, err = http.Get(url_.String())
	}

	if debug {
		log.Printf("GET ", url_.String())
	}

	if err != nil {
		return err
	}

	defer r.Body.Close()

	if debug {
		dump, _ := httputil.DumpResponse(r, true)
		log.Printf("DUMP:\n", string(dump))
	}

	if r.StatusCode != 200 {
		return buildError(r)
	}
	err = xml.NewDecoder(r.Body).Decode(resp)
	io.Copy(ioutil.Discard, r.Body)

	return err
}