vendor: update all dependencies

vendor/github.com/aws/aws-sdk-go/service/s3/sse.go

@@ -3,6 +3,7 @@ package s3
 import (
 	"crypto/md5"
 	"encoding/base64"
+	"net/http"
 
 	"github.com/aws/aws-sdk-go/aws/awserr"
 	"github.com/aws/aws-sdk-go/aws/request"
@@ -30,25 +31,54 @@ func validateSSERequiresSSL(r *request.Request) {
 	}
 }
 
-func computeSSEKeys(r *request.Request) {
-	headers := []string{
-		"x-amz-server-side-encryption-customer-key",
-		"x-amz-copy-source-server-side-encryption-customer-key",
+const (
+	sseKeyHeader    = "x-amz-server-side-encryption-customer-key"
+	sseKeyMD5Header = sseKeyHeader + "-md5"
+)
+
+func computeSSEKeyMD5(r *request.Request) {
+	var key string
+	if g, ok := r.Params.(sseCustomerKeyGetter); ok {
+		key = g.getSSECustomerKey()
 	}
 
-	for _, h := range headers {
-		md5h := h + "-md5"
-		if key := r.HTTPRequest.Header.Get(h); key != "" {
-			// Base64-encode the value
-			b64v := base64.StdEncoding.EncodeToString([]byte(key))
-			r.HTTPRequest.Header.Set(h, b64v)
+	computeKeyMD5(sseKeyHeader, sseKeyMD5Header, key, r.HTTPRequest)
+}
 
-			// Add MD5 if it wasn't computed
-			if r.HTTPRequest.Header.Get(md5h) == "" {
-				sum := md5.Sum([]byte(key))
-				b64sum := base64.StdEncoding.EncodeToString(sum[:])
-				r.HTTPRequest.Header.Set(md5h, b64sum)
-			}
+const (
+	copySrcSSEKeyHeader    = "x-amz-copy-source-server-side-encryption-customer-key"
+	copySrcSSEKeyMD5Header = copySrcSSEKeyHeader + "-md5"
+)
+
+func computeCopySourceSSEKeyMD5(r *request.Request) {
+	var key string
+	if g, ok := r.Params.(copySourceSSECustomerKeyGetter); ok {
+		key = g.getCopySourceSSECustomerKey()
+	}
+
+	computeKeyMD5(copySrcSSEKeyHeader, copySrcSSEKeyMD5Header, key, r.HTTPRequest)
+}
+
+func computeKeyMD5(keyHeader, keyMD5Header, key string, r *http.Request) {
+	if len(key) == 0 {
+		// Backwards compatiablity where user just set the header value instead
+		// of using the API parameter, or setting the header value for an
+		// operation without the parameters modeled.
+		key = r.Header.Get(keyHeader)
+		if len(key) == 0 {
+			return
 		}
+
+		// In backwards compatiable, the header's value is not base64 encoded,
+		// and needs to be encoded and updated by the SDK's customizations.
+		b64Key := base64.StdEncoding.EncodeToString([]byte(key))
+		r.Header.Set(keyHeader, b64Key)
+	}
+
+	// Only update Key's MD5 if not already set.
+	if len(r.Header.Get(keyMD5Header)) == 0 {
+		sum := md5.Sum([]byte(key))
+		keyMD5 := base64.StdEncoding.EncodeToString(sum[:])
+		r.Header.Set(keyMD5Header, keyMD5)
 	}
 }