Create AWS V4 Signing Utility

This commit is contained in:
Ryan Kohler 2021-01-19 09:26:12 -08:00
parent 9fd604954f
commit 09595ed990
2 changed files with 491 additions and 0 deletions

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// Copyright 2021 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package externalaccount
import (
"crypto/hmac"
"crypto/sha256"
"encoding/hex"
"fmt"
"io/ioutil"
"net/http"
"path"
"sort"
"strings"
"time"
)
// A utility class to sign http requests using a AWS V4 signature
type RequestSigner struct {
RegionName string
AwsSecurityCredentials map[string]string
debugTimestamp time.Time
}
func NewRequestSigner(regionName string, awsSecurityCredentials map[string]string) *RequestSigner {
return &RequestSigner{
RegionName: regionName,
AwsSecurityCredentials: awsSecurityCredentials,
}
}
// AWS Signature Version 4 signing algorithm identifier.
const awsAlgorithm = "AWS4-HMAC-SHA256"
// The termination string for the AWS credential scope value as defined in
// https://docs.aws.amazon.com/general/latest/gr/sigv4-create-string-to-sign.html
const awsRequestType = "aws4_request"
// The AWS authorization header name for the security session token if available.
const awsSecurityTokenHeader = "x-amz-security-token"
// The AWS authorization header name for the auto-generated date.
const awsDateHeader = "x-amz-date"
const awsTimeFormatLong = "20060102T150405Z"
const awsTimeFormatShort = "20060102"
func getSha256(input []byte) string {
hash := sha256.New()
hash.Write(input)
return hex.EncodeToString(hash.Sum(nil))
}
func getHmacSha256(key, input []byte) []byte {
hash := hmac.New(sha256.New, key)
hash.Write(input)
return hash.Sum(nil)
}
func canonicalPath(req *http.Request) string {
result := req.URL.EscapedPath()
if result == "" {
return "/"
}
return path.Clean(result)
}
func canonicalQuery(req *http.Request) string {
queryValues := req.URL.Query()
for queryKey := range queryValues {
sort.Strings(queryValues[queryKey])
}
return queryValues.Encode()
}
func canonicalHeaders(req *http.Request) (string, string) {
// Header keys need to be sorted alphabetically.
var headers []string
lowerCaseHeaders := make(http.Header)
for k, v := range req.Header {
k := strings.ToLower(k)
if _, ok := lowerCaseHeaders[k]; ok {
// include additional values
lowerCaseHeaders[k] = append(lowerCaseHeaders[k], v...)
} else {
headers = append(headers, k)
lowerCaseHeaders[k] = v
}
}
sort.Strings(headers)
var fullHeaders []string
for _, header := range headers {
headerValue := strings.Join(lowerCaseHeaders[header], ",")
fullHeaders = append(fullHeaders, header+":"+headerValue+"\n")
}
return strings.Join(headers, ";"), strings.Join(fullHeaders, "")
}
func requestDataHash(req *http.Request) string {
requestData := []byte{}
if req.Body != nil {
requestBody, _ := req.GetBody()
requestData, _ = ioutil.ReadAll(requestBody)
}
return getSha256(requestData)
}
func requestHost(req *http.Request) string {
if req.Host != "" {
return req.Host
}
return req.URL.Host
}
func canonicalRequest(req *http.Request, canonicalHeaderColumns, canonicalHeaderData string) string {
return strings.Join([]string{
req.Method,
canonicalPath(req),
canonicalQuery(req),
canonicalHeaderData,
canonicalHeaderColumns,
requestDataHash(req),
}, "\n")
}
func (rs *RequestSigner) SignedRequest(req *http.Request) *http.Request {
timestamp := rs.debugTimestamp
if timestamp.IsZero() {
timestamp = time.Now()
}
signedRequest := req.Clone(req.Context())
signedRequest.Header.Add("host", requestHost(req))
securityToken, ok := rs.AwsSecurityCredentials["security_token"]
if ok {
signedRequest.Header.Add("x-amz-security-token", securityToken)
}
if signedRequest.Header.Get("date") == "" {
signedRequest.Header.Add("x-amz-date", timestamp.Format(awsTimeFormatLong))
}
signedRequest.Header.Set("Authorization", rs.generateAuthentication(signedRequest, timestamp))
return signedRequest
}
func (rs *RequestSigner) generateAuthentication(req *http.Request, timestamp time.Time) string {
canonicalHeaderColumns, canonicalHeaderData := canonicalHeaders(req)
dateStamp := timestamp.Format(awsTimeFormatShort)
serviceName := strings.Split(requestHost(req), ".")[0]
credentialScope := strings.Join([]string{
dateStamp, rs.RegionName, serviceName, awsRequestType,
}, "/")
stringToSign := strings.Join([]string{
awsAlgorithm,
timestamp.Format(awsTimeFormatLong),
credentialScope,
getSha256([]byte(canonicalRequest(req, canonicalHeaderColumns, canonicalHeaderData))),
}, "\n")
signingKey := []byte("AWS4" + rs.AwsSecurityCredentials["secret_access_key"])
for _, signingInput := range []string{
dateStamp, rs.RegionName, serviceName, awsRequestType, stringToSign,
} {
signingKey = getHmacSha256(signingKey, []byte(signingInput))
}
return fmt.Sprintf("%s Credential=%s/%s, SignedHeaders=%s, Signature=%s", awsAlgorithm, rs.AwsSecurityCredentials["access_key_id"], credentialScope, canonicalHeaderColumns, hex.EncodeToString(signingKey))
}

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// Copyright 2021 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package externalaccount
import (
"net/http"
"reflect"
"strings"
"testing"
"time"
)
var defaultTime = time.Date(2011, 9, 9, 23, 36, 0, 0, time.UTC)
var secondDefaultTime = time.Date(2020, 8, 11, 6, 55, 22, 0, time.UTC)
var defaultRequestSigner = NewRequestSigner("us-east-1", map[string]string{
"access_key_id": "AKIDEXAMPLE",
"secret_access_key": "wJalrXUtnFEMI/K7MDENG+bPxRfiCYEXAMPLEKEY",
})
const accessKeyId = "ASIARD4OQDT6A77FR3CL"
const secretAccessKey = "Y8AfSaucF37G4PpvfguKZ3/l7Id4uocLXxX0+VTx"
const securityToken = "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"
var requestSignerWithToken = NewRequestSigner("us-east-2", map[string]string{
"access_key_id": accessKeyId,
"secret_access_key": secretAccessKey,
"security_token": securityToken,
})
func setDefaultTime(req *http.Request) {
// Don't use time.Format for this
// Our output signature expects this to be a Monday, even though Sept 9, 2011 is a Friday
req.Header.Add("date", "Mon, 09 Sep 2011 23:36:00 GMT")
}
func testRequestSigner(t *testing.T, rs *RequestSigner, input, expectedOutput *http.Request) {
actualOutput := rs.SignedRequest(input)
if got, want := actualOutput.URL.String(), expectedOutput.URL.String(); !reflect.DeepEqual(got, want) {
t.Errorf("url = %q, want %q", got, want)
}
if got, want := actualOutput.Method, expectedOutput.Method; !reflect.DeepEqual(got, want) {
t.Errorf("method = %q, want %q", got, want)
}
for header := range expectedOutput.Header {
if got, want := actualOutput.Header[header], expectedOutput.Header[header]; !reflect.DeepEqual(got, want) {
t.Errorf("header[%q] = %q, want %q", header, got, want)
}
}
}
func TestAwsV4Signature_GetRequest(t *testing.T) {
input, _ := http.NewRequest("GET", "https://host.foo.com", nil)
setDefaultTime(input)
output, _ := http.NewRequest("GET", "https://host.foo.com", nil)
output.Header = http.Header{
"Host": []string{"host.foo.com"},
"Date": []string{"Mon, 09 Sep 2011 23:36:00 GMT"},
"Authorization": []string{"AWS4-HMAC-SHA256 Credential=AKIDEXAMPLE/20110909/us-east-1/host/aws4_request, SignedHeaders=date;host, Signature=b27ccfbfa7df52a200ff74193ca6e32d4b48b8856fab7ebf1c595d0670a7e470"},
}
testRequestSigner(t, defaultRequestSigner, input, output)
}
func TestAwsV4Signature_GetRequestWithRelativePath(t *testing.T) {
input, _ := http.NewRequest("GET", "https://host.foo.com/foo/bar/../..", nil)
setDefaultTime(input)
output, _ := http.NewRequest("GET", "https://host.foo.com/foo/bar/../..", nil)
output.Header = http.Header{
"Host": []string{"host.foo.com"},
"Date": []string{"Mon, 09 Sep 2011 23:36:00 GMT"},
"Authorization": []string{"AWS4-HMAC-SHA256 Credential=AKIDEXAMPLE/20110909/us-east-1/host/aws4_request, SignedHeaders=date;host, Signature=b27ccfbfa7df52a200ff74193ca6e32d4b48b8856fab7ebf1c595d0670a7e470"},
}
testRequestSigner(t, defaultRequestSigner, input, output)
}
func TestAwsV4Signature_GetRequestWithDotPath(t *testing.T) {
input, _ := http.NewRequest("GET", "https://host.foo.com/./", nil)
setDefaultTime(input)
output, _ := http.NewRequest("GET", "https://host.foo.com/./", nil)
output.Header = http.Header{
"Host": []string{"host.foo.com"},
"Date": []string{"Mon, 09 Sep 2011 23:36:00 GMT"},
"Authorization": []string{"AWS4-HMAC-SHA256 Credential=AKIDEXAMPLE/20110909/us-east-1/host/aws4_request, SignedHeaders=date;host, Signature=b27ccfbfa7df52a200ff74193ca6e32d4b48b8856fab7ebf1c595d0670a7e470"},
}
testRequestSigner(t, defaultRequestSigner, input, output)
}
func TestAwsV4Signature_GetRequestWithPointlessDotPath(t *testing.T) {
input, _ := http.NewRequest("GET", "https://host.foo.com/./foo", nil)
setDefaultTime(input)
output, _ := http.NewRequest("GET", "https://host.foo.com/./foo", nil)
output.Header = http.Header{
"Host": []string{"host.foo.com"},
"Date": []string{"Mon, 09 Sep 2011 23:36:00 GMT"},
"Authorization": []string{"AWS4-HMAC-SHA256 Credential=AKIDEXAMPLE/20110909/us-east-1/host/aws4_request, SignedHeaders=date;host, Signature=910e4d6c9abafaf87898e1eb4c929135782ea25bb0279703146455745391e63a"},
}
testRequestSigner(t, defaultRequestSigner, input, output)
}
func TestAwsV4Signature_GetRequestWithUtf8Path(t *testing.T) {
input, _ := http.NewRequest("GET", "https://host.foo.com/%E1%88%B4", nil)
setDefaultTime(input)
output, _ := http.NewRequest("GET", "https://host.foo.com/%E1%88%B4", nil)
output.Header = http.Header{
"Host": []string{"host.foo.com"},
"Date": []string{"Mon, 09 Sep 2011 23:36:00 GMT"},
"Authorization": []string{"AWS4-HMAC-SHA256 Credential=AKIDEXAMPLE/20110909/us-east-1/host/aws4_request, SignedHeaders=date;host, Signature=8d6634c189aa8c75c2e51e106b6b5121bed103fdb351f7d7d4381c738823af74"},
}
testRequestSigner(t, defaultRequestSigner, input, output)
}
func TestAwsV4Signature_GetRequestWithDuplicateQuery(t *testing.T) {
input, _ := http.NewRequest("GET", "https://host.foo.com/?foo=Zoo&foo=aha", nil)
setDefaultTime(input)
output, _ := http.NewRequest("GET", "https://host.foo.com/?foo=Zoo&foo=aha", nil)
output.Header = http.Header{
"Host": []string{"host.foo.com"},
"Date": []string{"Mon, 09 Sep 2011 23:36:00 GMT"},
"Authorization": []string{"AWS4-HMAC-SHA256 Credential=AKIDEXAMPLE/20110909/us-east-1/host/aws4_request, SignedHeaders=date;host, Signature=be7148d34ebccdc6423b19085378aa0bee970bdc61d144bd1a8c48c33079ab09"},
}
testRequestSigner(t, defaultRequestSigner, input, output)
}
func TestAwsV4Signature_GetRequestWithMisorderedQuery(t *testing.T) {
input, _ := http.NewRequest("GET", "https://host.foo.com/?foo=b&foo=a", nil)
setDefaultTime(input)
output, _ := http.NewRequest("GET", "https://host.foo.com/?foo=b&foo=a", nil)
output.Header = http.Header{
"Host": []string{"host.foo.com"},
"Date": []string{"Mon, 09 Sep 2011 23:36:00 GMT"},
"Authorization": []string{"AWS4-HMAC-SHA256 Credential=AKIDEXAMPLE/20110909/us-east-1/host/aws4_request, SignedHeaders=date;host, Signature=feb926e49e382bec75c9d7dcb2a1b6dc8aa50ca43c25d2bc51143768c0875acc"},
}
testRequestSigner(t, defaultRequestSigner, input, output)
}
func TestAwsV4Signature_GetRequestWithUtf8Query(t *testing.T) {
input, _ := http.NewRequest("GET", "https://host.foo.com/?ሴ=bar", nil)
setDefaultTime(input)
output, _ := http.NewRequest("GET", "https://host.foo.com/?ሴ=bar", nil)
output.Header = http.Header{
"Host": []string{"host.foo.com"},
"Date": []string{"Mon, 09 Sep 2011 23:36:00 GMT"},
"Authorization": []string{"AWS4-HMAC-SHA256 Credential=AKIDEXAMPLE/20110909/us-east-1/host/aws4_request, SignedHeaders=date;host, Signature=6fb359e9a05394cc7074e0feb42573a2601abc0c869a953e8c5c12e4e01f1a8c"},
}
testRequestSigner(t, defaultRequestSigner, input, output)
}
func TestAwsV4Signature_PostRequest(t *testing.T) {
input, _ := http.NewRequest("POST", "https://host.foo.com/", nil)
setDefaultTime(input)
input.Header.Add("ZOO", "zoobar")
output, _ := http.NewRequest("POST", "https://host.foo.com/", nil)
output.Header = http.Header{
"Host": []string{"host.foo.com"},
"Date": []string{"Mon, 09 Sep 2011 23:36:00 GMT"},
"Authorization": []string{"AWS4-HMAC-SHA256 Credential=AKIDEXAMPLE/20110909/us-east-1/host/aws4_request, SignedHeaders=date;host;zoo, Signature=b7a95a52518abbca0964a999a880429ab734f35ebbf1235bd79a5de87756dc4a"},
"Zoo": []string{"zoobar"},
}
testRequestSigner(t, defaultRequestSigner, input, output)
}
func TestAwsV4Signature_PostRequestWithCapitalizedHeaderValue(t *testing.T) {
input, _ := http.NewRequest("POST", "https://host.foo.com/", nil)
setDefaultTime(input)
input.Header.Add("zoo", "ZOOBAR")
output, _ := http.NewRequest("POST", "https://host.foo.com/", nil)
output.Header = http.Header{
"Host": []string{"host.foo.com"},
"Date": []string{"Mon, 09 Sep 2011 23:36:00 GMT"},
"Authorization": []string{"AWS4-HMAC-SHA256 Credential=AKIDEXAMPLE/20110909/us-east-1/host/aws4_request, SignedHeaders=date;host;zoo, Signature=273313af9d0c265c531e11db70bbd653f3ba074c1009239e8559d3987039cad7"},
"Zoo": []string{"ZOOBAR"},
}
testRequestSigner(t, defaultRequestSigner, input, output)
}
func TestAwsV4Signature_PostRequestPhfft(t *testing.T) {
input, _ := http.NewRequest("POST", "https://host.foo.com/", nil)
setDefaultTime(input)
input.Header.Add("p", "phfft")
output, _ := http.NewRequest("POST", "https://host.foo.com/", nil)
output.Header = http.Header{
"Host": []string{"host.foo.com"},
"Date": []string{"Mon, 09 Sep 2011 23:36:00 GMT"},
"Authorization": []string{"AWS4-HMAC-SHA256 Credential=AKIDEXAMPLE/20110909/us-east-1/host/aws4_request, SignedHeaders=date;host;p, Signature=debf546796015d6f6ded8626f5ce98597c33b47b9164cf6b17b4642036fcb592"},
"P": []string{"phfft"},
}
testRequestSigner(t, defaultRequestSigner, input, output)
}
func TestAwsV4Signature_PostRequestWithBody(t *testing.T) {
input, _ := http.NewRequest("POST", "https://host.foo.com/", strings.NewReader("foo=bar"))
setDefaultTime(input)
input.Header.Add("Content-Type", "application/x-www-form-urlencoded")
output, _ := http.NewRequest("POST", "https://host.foo.com/", nil)
output.Header = http.Header{
"Host": []string{"host.foo.com"},
"Date": []string{"Mon, 09 Sep 2011 23:36:00 GMT"},
"Content-Type": []string{"application/x-www-form-urlencoded"},
"Authorization": []string{"AWS4-HMAC-SHA256 Credential=AKIDEXAMPLE/20110909/us-east-1/host/aws4_request, SignedHeaders=content-type;date;host, Signature=5a15b22cf462f047318703b92e6f4f38884e4a7ab7b1d6426ca46a8bd1c26cbc"},
}
testRequestSigner(t, defaultRequestSigner, input, output)
}
func TestAwsV4Signature_PostRequestWithQueryString(t *testing.T) {
input, _ := http.NewRequest("POST", "https://host.foo.com/?foo=bar", nil)
setDefaultTime(input)
output, _ := http.NewRequest("POST", "https://host.foo.com/?foo=bar", nil)
output.Header = http.Header{
"Host": []string{"host.foo.com"},
"Date": []string{"Mon, 09 Sep 2011 23:36:00 GMT"},
"Authorization": []string{"AWS4-HMAC-SHA256 Credential=AKIDEXAMPLE/20110909/us-east-1/host/aws4_request, SignedHeaders=date;host, Signature=b6e3b79003ce0743a491606ba1035a804593b0efb1e20a11cba83f8c25a57a92"},
}
testRequestSigner(t, defaultRequestSigner, input, output)
}
func TestAwsV4Signature_GetRequestWithSecurityToken(t *testing.T) {
input, _ := http.NewRequest("GET", "https://ec2.us-east-2.amazonaws.com?Action=DescribeRegions&Version=2013-10-15", nil)
output, _ := http.NewRequest("GET", "https://ec2.us-east-2.amazonaws.com?Action=DescribeRegions&Version=2013-10-15", nil)
output.Header = http.Header{
"Host": []string{"ec2.us-east-2.amazonaws.com"},
"Authorization": []string{"AWS4-HMAC-SHA256 Credential=" + accessKeyId + "/20200811/us-east-2/ec2/aws4_request, SignedHeaders=host;x-amz-date;x-amz-security-token, Signature=631ea80cddfaa545fdadb120dc92c9f18166e38a5c47b50fab9fce476e022855"},
"X-Amz-Date": []string{"20200811T065522Z"},
"X-Amz-Security-Token": []string{securityToken},
}
testRequestSigner(t, requestSignerWithToken, input, output)
}
func TestAwsV4Signature_PostRequestWithSecurityToken(t *testing.T) {
input, _ := http.NewRequest("POST", "https://sts.us-east-2.amazonaws.com?Action=GetCallerIdentity&Version=2011-06-15", nil)
output, _ := http.NewRequest("POST", "https://sts.us-east-2.amazonaws.com?Action=GetCallerIdentity&Version=2011-06-15", nil)
output.Header = http.Header{
"Authorization": []string{"AWS4-HMAC-SHA256 Credential=" + accessKeyId + "/20200811/us-east-2/sts/aws4_request, SignedHeaders=host;x-amz-date;x-amz-security-token, Signature=73452984e4a880ffdc5c392355733ec3f5ba310d5e0609a89244440cadfe7a7a"},
"Host": []string{"sts.us-east-2.amazonaws.com"},
"X-Amz-Date": []string{"20200811T065522Z"},
"X-Amz-Security-Token": []string{securityToken},
}
testRequestSigner(t, requestSignerWithToken, input, output)
}
func TestAwsV4Signature_PostRequestWithSecurityTokenAndAdditionalHeaders(t *testing.T) {
requestParams := "{\"KeySchema\":[{\"KeyType\":\"HASH\",\"AttributeName\":\"Id\"}],\"TableName\":\"TestTable\",\"AttributeDefinitions\":[{\"AttributeName\":\"Id\",\"AttributeType\":\"S\"}],\"ProvisionedThroughput\":{\"WriteCapacityUnits\":5,\"ReadCapacityUnits\":5}}"
input, _ := http.NewRequest("POST", "https://dynamodb.us-east-2.amazonaws.com/", strings.NewReader(requestParams))
input.Header.Add("Content-Type", "application/x-amz-json-1.0")
input.Header.Add("x-amz-target", "DynamoDB_20120810.CreateTable")
output, _ := http.NewRequest("POST", "https://dynamodb.us-east-2.amazonaws.com/", strings.NewReader(requestParams))
output.Header = http.Header{
"Authorization": []string{"AWS4-HMAC-SHA256 Credential=" + accessKeyId + "/20200811/us-east-2/dynamodb/aws4_request, SignedHeaders=content-type;host;x-amz-date;x-amz-security-token;x-amz-target, Signature=fdaa5b9cc9c86b80fe61eaf504141c0b3523780349120f2bd8145448456e0385"},
"Host": []string{"dynamodb.us-east-2.amazonaws.com"},
"X-Amz-Date": []string{"20200811T065522Z"},
"Content-Type": []string{"application/x-amz-json-1.0"},
"X-Amz-Target": []string{"DynamoDB_20120810.CreateTable"},
"X-Amz-Security-Token": []string{securityToken},
}
testRequestSigner(t, requestSignerWithToken, input, output)
}
func TestAwsV4Signature_PostRequestWithAmzDateButNoSecurityToken(t *testing.T) {
var requestSigner = NewRequestSigner("us-east-2", map[string]string{
"access_key_id": accessKeyId,
"secret_access_key": secretAccessKey,
})
requestSigner.debugTimestamp = secondDefaultTime
input, _ := http.NewRequest("POST", "https://sts.us-east-2.amazonaws.com?Action=GetCallerIdentity&Version=2011-06-15", nil)
output, _ := http.NewRequest("POST", "https://sts.us-east-2.amazonaws.com?Action=GetCallerIdentity&Version=2011-06-15", nil)
output.Header = http.Header{
"Authorization": []string{"AWS4-HMAC-SHA256 Credential=" + accessKeyId + "/20200811/us-east-2/sts/aws4_request, SignedHeaders=host;x-amz-date, Signature=d095ba304919cd0d5570ba8a3787884ee78b860f268ed040ba23831d55536d56"},
"Host": []string{"sts.us-east-2.amazonaws.com"},
"X-Amz-Date": []string{"20200811T065522Z"},
}
testRequestSigner(t, requestSigner, input, output)
}
func init() {
defaultRequestSigner.debugTimestamp = defaultTime
requestSignerWithToken.debugTimestamp = secondDefaultTime
}