google: Create AWS V4 Signing Utility
Change-Id: I59b4a13ed0433de7dfaa064a0f7dc1f3dd724518
GitHub-Last-Rev: 8cdc6a9ad02da61234e7d18db77294cef31367da
GitHub-Pull-Request: golang/oauth2#467
Reviewed-on: https://go-review.googlesource.com/c/oauth2/+/284632
Run-TryBot: Cody Oss <codyoss@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Trust: Cody Oss <codyoss@google.com>
Trust: Tyler Bui-Palsulich <tbp@google.com>
Reviewed-by: Cody Oss <codyoss@google.com>
diff --git a/google/internal/externalaccount/aws.go b/google/internal/externalaccount/aws.go
new file mode 100644
index 0000000..906d1fe
--- /dev/null
+++ b/google/internal/externalaccount/aws.go
@@ -0,0 +1,230 @@
+// 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"
+ "errors"
+ "fmt"
+ "io"
+ "io/ioutil"
+ "net/http"
+ "path"
+ "sort"
+ "strings"
+ "time"
+)
+
+// RequestSigner is a utility class to sign http requests using a AWS V4 signature.
+type awsRequestSigner struct {
+ RegionName string
+ AwsSecurityCredentials map[string]string
+}
+
+const (
+// AWS Signature Version 4 signing algorithm identifier.
+ 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
+ awsRequestType = "aws4_request"
+
+// The AWS authorization header name for the security session token if available.
+ awsSecurityTokenHeader = "x-amz-security-token"
+
+// The AWS authorization header name for the auto-generated date.
+ awsDateHeader = "x-amz-date"
+
+ awsTimeFormatLong = "20060102T150405Z"
+ awsTimeFormatShort = "20060102"
+)
+
+func getSha256(input []byte) (string, error) {
+ hash := sha256.New()
+ if _, err := hash.Write(input); err != nil {
+ return "", err
+ }
+ return hex.EncodeToString(hash.Sum(nil)), nil
+}
+
+func getHmacSha256(key, input []byte) ([]byte, error) {
+ hash := hmac.New(sha256.New, key)
+ if _, err := hash.Write(input); err != nil {
+ return nil, err
+ }
+ return hash.Sum(nil), nil
+}
+
+func cloneRequest(r *http.Request) *http.Request {
+ r2 := new(http.Request)
+ *r2 = *r
+ if r.Header != nil {
+ r2.Header = make(http.Header, len(r.Header))
+
+ // Find total number of values.
+ headerCount := 0
+ for _, headerValues := range r.Header {
+ headerCount += len(headerValues)
+ }
+ copiedHeaders := make([]string, headerCount) // shared backing array for headers' values
+
+ for headerKey, headerValues := range r.Header {
+ headerCount = copy(copiedHeaders, headerValues)
+ r2.Header[headerKey] = copiedHeaders[:headerCount:headerCount]
+ copiedHeaders = copiedHeaders[headerCount:]
+ }
+ }
+ return r2
+}
+
+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 strings.Builder
+ for _, header := range headers {
+ headerValue := strings.Join(lowerCaseHeaders[header], ",")
+ fullHeaders.WriteString(header)
+ fullHeaders.WriteRune(':')
+ fullHeaders.WriteString(headerValue)
+ fullHeaders.WriteRune('\n')
+ }
+
+ return strings.Join(headers, ";"), fullHeaders.String()
+}
+
+func requestDataHash(req *http.Request) (string, error) {
+ var requestData []byte
+ if req.Body != nil {
+ requestBody, err := req.GetBody()
+ if err != nil {
+ return "", err
+ }
+ defer requestBody.Close()
+
+ requestData, err = ioutil.ReadAll(io.LimitReader(requestBody, 1<<20))
+ if err != nil {
+ return "", err
+ }
+ }
+
+ 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, error) {
+ dataHash, err := requestDataHash(req)
+ if err != nil {
+ return "", err
+ }
+
+ return fmt.Sprintf("%s\n%s\n%s\n%s\n%s\n%s", req.Method, canonicalPath(req), canonicalQuery(req), canonicalHeaderData, canonicalHeaderColumns, dataHash), nil
+}
+
+// SignRequest adds the appropriate headers to an http.Request
+// or returns an error if something prevented this.
+func (rs *awsRequestSigner) SignRequest(req *http.Request) error {
+ signedRequest := cloneRequest(req)
+ timestamp := now()
+
+ signedRequest.Header.Add("host", requestHost(req))
+
+ if securityToken, ok := rs.AwsSecurityCredentials["security_token"]; ok {
+ signedRequest.Header.Add(awsSecurityTokenHeader, securityToken)
+ }
+
+ if signedRequest.Header.Get("date") == "" {
+ signedRequest.Header.Add(awsDateHeader, timestamp.Format(awsTimeFormatLong))
+ }
+
+ authorizationCode, err := rs.generateAuthentication(signedRequest, timestamp)
+ if err != nil {
+ return err
+ }
+ signedRequest.Header.Set("Authorization", authorizationCode)
+
+ req.Header = signedRequest.Header
+ return nil
+}
+
+func (rs *awsRequestSigner) generateAuthentication(req *http.Request, timestamp time.Time) (string, error) {
+ secretAccessKey, ok := rs.AwsSecurityCredentials["secret_access_key"]
+ if !ok {
+ return "", errors.New("oauth2/google: missing secret_access_key header")
+ }
+ accessKeyId, ok := rs.AwsSecurityCredentials["access_key_id"]
+ if !ok {
+ return "", errors.New("oauth2/google: missing access_key_id header")
+ }
+
+ canonicalHeaderColumns, canonicalHeaderData := canonicalHeaders(req)
+
+ dateStamp := timestamp.Format(awsTimeFormatShort)
+ serviceName := ""
+ if splitHost := strings.Split(requestHost(req), "."); len(splitHost) > 0 {
+ serviceName = splitHost[0]
+ }
+
+ credentialScope := fmt.Sprintf("%s/%s/%s/%s",dateStamp, rs.RegionName, serviceName, awsRequestType)
+
+ requestString, err := canonicalRequest(req, canonicalHeaderColumns, canonicalHeaderData)
+ if err != nil {
+ return "", err
+ }
+ requestHash, err := getSha256([]byte(requestString))
+ if err != nil{
+ return "", err
+ }
+
+ stringToSign := fmt.Sprintf("%s\n%s\n%s\n%s", awsAlgorithm, timestamp.Format(awsTimeFormatLong), credentialScope, requestHash)
+
+ signingKey := []byte("AWS4" + secretAccessKey)
+ for _, signingInput := range []string{
+ dateStamp, rs.RegionName, serviceName, awsRequestType, stringToSign,
+ } {
+ signingKey, err = getHmacSha256(signingKey, []byte(signingInput))
+ if err != nil{
+ return "", err
+ }
+ }
+
+ return fmt.Sprintf("%s Credential=%s/%s, SignedHeaders=%s, Signature=%s", awsAlgorithm, accessKeyId, credentialScope, canonicalHeaderColumns, hex.EncodeToString(signingKey)), nil
+}
diff --git a/google/internal/externalaccount/aws_test.go b/google/internal/externalaccount/aws_test.go
new file mode 100644
index 0000000..206c3a1
--- /dev/null
+++ b/google/internal/externalaccount/aws_test.go
@@ -0,0 +1,396 @@
+// 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)
+
+func setTime(testTime time.Time) func() time.Time {
+ return func() time.Time {
+ return testTime
+ }
+}
+
+var defaultRequestSigner = &awsRequestSigner{
+ RegionName: "us-east-1",
+ AwsSecurityCredentials: 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 = &awsRequestSigner{
+ RegionName: "us-east-2",
+ AwsSecurityCredentials: 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 *awsRequestSigner, input, expectedOutput *http.Request) {
+ t.Helper()
+
+ err := rs.SignRequest(input)
+ if err != nil {
+ t.Errorf("unexpected error: %q", err.Error())
+ }
+
+ if got, want := input.URL.String(), expectedOutput.URL.String(); !reflect.DeepEqual(got, want) {
+ t.Errorf("url = %q, want %q", got, want)
+ }
+ if got, want := input.Method, expectedOutput.Method; !reflect.DeepEqual(got, want) {
+ t.Errorf("method = %q, want %q", got, want)
+ }
+ for header := range expectedOutput.Header {
+ if got, want := input.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"},
+ }
+
+ oldNow := now
+ defer func() { now = oldNow }()
+ now = setTime(defaultTime)
+
+ 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"},
+ }
+
+ oldNow := now
+ defer func() { now = oldNow }()
+ now = setTime(defaultTime)
+
+ 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"},
+ }
+
+ oldNow := now
+ defer func() { now = oldNow }()
+ now = setTime(defaultTime)
+
+ 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"},
+ }
+
+ oldNow := now
+ defer func() { now = oldNow }()
+ now = setTime(defaultTime)
+
+ 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"},
+ }
+
+ oldNow := now
+ defer func() { now = oldNow }()
+ now = setTime(defaultTime)
+
+ 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"},
+ }
+
+ oldNow := now
+ defer func() { now = oldNow }()
+ now = setTime(defaultTime)
+
+ 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"},
+ }
+
+ oldNow := now
+ defer func() { now = oldNow }()
+ now = setTime(defaultTime)
+
+ 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"},
+ }
+
+ oldNow := now
+ defer func() { now = oldNow }()
+ now = setTime(defaultTime)
+
+ 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"},
+ }
+
+ oldNow := now
+ defer func() { now = oldNow }()
+ now = setTime(defaultTime)
+
+ 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"},
+ }
+
+ oldNow := now
+ defer func() { now = oldNow }()
+ now = setTime(defaultTime)
+
+ 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"},
+ }
+
+ oldNow := now
+ defer func() { now = oldNow }()
+ now = setTime(defaultTime)
+
+ 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"},
+ }
+
+ oldNow := now
+ defer func() { now = oldNow }()
+ now = setTime(defaultTime)
+
+ 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"},
+ }
+
+ oldNow := now
+ defer func() { now = oldNow }()
+ now = setTime(defaultTime)
+
+ 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},
+ }
+
+ oldNow := now
+ defer func() { now = oldNow }()
+ now = setTime(secondDefaultTime)
+
+ 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},
+ }
+
+ oldNow := now
+ defer func() { now = oldNow }()
+ now = setTime(secondDefaultTime)
+
+ 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},
+ }
+
+ oldNow := now
+ defer func() { now = oldNow }()
+ now = setTime(secondDefaultTime)
+
+ testRequestSigner(t, requestSignerWithToken, input, output)
+}
+
+func TestAwsV4Signature_PostRequestWithAmzDateButNoSecurityToken(t *testing.T) {
+ var requestSigner = &awsRequestSigner{
+ RegionName: "us-east-2",
+ AwsSecurityCredentials: map[string]string{
+ "access_key_id": accessKeyId,
+ "secret_access_key": secretAccessKey,
+ },
+ }
+
+ 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"},
+ }
+
+ oldNow := now
+ defer func() { now = oldNow }()
+ now = setTime(secondDefaultTime)
+
+ testRequestSigner(t, requestSigner, input, output)
+}
