feat: add option to disable s3proxy client data integrity checks

AWS introduced a relatively newer option for data integrity checks
that not all non-AWS server support yet. See this for mmore info:
https://docs.aws.amazon.com/AmazonS3/latest/userguide/checking-object-integrity.html

This change adds a new option: disable-data-integrity-check
to disable the data integrity checks in the client sdk for the
servers that may not yet support this. Use this only when the s3
service for the proxy does not support the data integrity features.

Fixes #1867

cmd/versitygw/s3.go

@@ -22,15 +22,16 @@ import (
 )
 
 var (
-	s3proxyAccess          string
-	s3proxySecret          string
-	s3proxyEndpoint        string
-	s3proxyRegion          string
-	s3proxyMetaBucket      string
-	s3proxyDisableChecksum bool
-	s3proxySslSkipVerify   bool
-	s3proxyUsePathStyle    bool
-	s3proxyDebug           bool
+	s3proxyAccess                    string
+	s3proxySecret                    string
+	s3proxyEndpoint                  string
+	s3proxyRegion                    string
+	s3proxyMetaBucket                string
+	s3proxyDisableChecksum           bool
+	s3proxyDisableDataIntegrityCheck bool
+	s3proxySslSkipVerify             bool
+	s3proxyUsePathStyle              bool
+	s3proxyDebug                     bool
 )
 
 func s3Command() *cli.Command {
@@ -84,6 +85,13 @@ to an s3 storage backend service.`,
 				EnvVars:     []string{"VGW_S3_DISABLE_CHECKSUM"},
 				Destination: &s3proxyDisableChecksum,
 			},
+			&cli.BoolFlag{
+				Name:        "disable-data-integrity-check",
+				Usage:       "disable data integrity checks for requests (sets RequestChecksumCalculationWhenRequired)",
+				Value:       false,
+				EnvVars:     []string{"VGW_S3_DISABLE_DATA_INTEGRITY_CHECK"},
+				Destination: &s3proxyDisableDataIntegrityCheck,
+			},
 			&cli.BoolFlag{
 				Name:        "ssl-skip-verify",
 				Usage:       "skip ssl cert verification for s3 service",
@@ -111,7 +119,7 @@ to an s3 storage backend service.`,
 
 func runS3(ctx *cli.Context) error {
 	be, err := s3proxy.New(ctx.Context, s3proxyAccess, s3proxySecret, s3proxyEndpoint, s3proxyRegion,
-		s3proxyMetaBucket, s3proxyDisableChecksum, s3proxySslSkipVerify, s3proxyUsePathStyle, s3proxyDebug)
+		s3proxyMetaBucket, s3proxyDisableChecksum, s3proxyDisableDataIntegrityCheck, s3proxySslSkipVerify, s3proxyUsePathStyle, s3proxyDebug)
 	if err != nil {
 		return fmt.Errorf("init s3 backend: %w", err)
 	}