mega: add --mega-use-https flag

Some ISPs throttle HTTP which MEGA uses by default, so some users may find using HTTPS beneficial.

backend/mega/mega.go

@@ -83,6 +83,17 @@ than permanently deleting them.  If you specify this then rclone will
 permanently delete objects instead.`,
 			Default:  false,
 			Advanced: true,
+		}, {
+			Name: "use_https",
+			Help: `Use HTTPS for transfers.
+
+MEGA uses plain text HTTP connections by default.
+Some ISPs throttle HTTP connections, this causes transfers to become very slow.
+Enabling this will force MEGA to use HTTPS for all transfers.
+HTTPS is normally not necesary since all data is already encrypted anyway.
+Enabling it will increase CPU usage and add network overhead.`,
+			Default:  false,
+			Advanced: true,
 		}, {
 			Name:     config.ConfigEncoding,
 			Help:     config.ConfigEncodingHelp,
@@ -100,6 +111,7 @@ type Options struct {
 	Pass       string               `config:"pass"`
 	Debug      bool                 `config:"debug"`
 	HardDelete bool                 `config:"hard_delete"`
+	UseHTTPS   bool                 `config:"use_https"`
 	Enc        encoder.MultiEncoder `config:"encoding"`
 }
 
@@ -204,6 +216,7 @@ func NewFs(ctx context.Context, name, root string, m configmap.Mapper) (fs.Fs, e
 	if srv == nil {
 		srv = mega.New().SetClient(fshttp.NewClient(ctx))
 		srv.SetRetries(ci.LowLevelRetries) // let mega do the low level retries
+		srv.SetHTTPS(opt.UseHTTPS)
 		srv.SetLogger(func(format string, v ...interface{}) {
 			fs.Infof("*go-mega*", format, v...)
 		})

go.mod

@@ -56,7 +56,7 @@ require (
 	github.com/spf13/cobra v1.6.1
 	github.com/spf13/pflag v1.0.5
 	github.com/stretchr/testify v1.8.1
-	github.com/t3rm1n4l/go-mega v0.0.0-20220725095014-c4e0c2b5debf
+	github.com/t3rm1n4l/go-mega v0.0.0-20230228171823-a01a2cda13ca
 	github.com/winfsp/cgofuse v1.5.1-0.20221118130120-84c0898ad2e0
 	github.com/xanzy/ssh-agent v0.3.3
 	github.com/youmark/pkcs8 v0.0.0-20201027041543-1326539a0a0a

go.sum

@@ -462,6 +462,8 @@ github.com/stretchr/testify v1.8.1 h1:w7B6lhMri9wdJUVmEZPGGhZzrYTPvgJArz7wNPgYKs
 github.com/stretchr/testify v1.8.1/go.mod h1:w2LPCIKwWwSfY2zedu0+kehJoqGctiVI29o6fzry7u4=
 github.com/t3rm1n4l/go-mega v0.0.0-20220725095014-c4e0c2b5debf h1:Y43S3e9P1NPs/QF4R5/SdlXj2d31540hP4Gk8VKNvDg=
 github.com/t3rm1n4l/go-mega v0.0.0-20220725095014-c4e0c2b5debf/go.mod h1:c+cGNU1qi9bO7ZF4IRMYk+KaZTNiQ/gQrSbyMmGFq1Q=
+github.com/t3rm1n4l/go-mega v0.0.0-20230228171823-a01a2cda13ca h1:I9rVnNXdIkij4UvMT7OmKhH9sOIvS8iXkxfPdnn9wQA=
+github.com/t3rm1n4l/go-mega v0.0.0-20230228171823-a01a2cda13ca/go.mod h1:suDIky6yrK07NnaBadCB4sS0CqFOvUK91lH7CR+JlDA=
 github.com/tinylib/msgp v1.0.2/go.mod h1:+d+yLhGm8mzTaHzB+wgMYrodPfmZrzkirds8fDWklFE=
 github.com/tklauser/go-sysconf v0.3.11 h1:89WgdJhk5SNwJfu+GKyYveZ4IaJ7xAkecBo+KdJV0CM=
 github.com/tklauser/go-sysconf v0.3.11/go.mod h1:GqXfhXY3kiPa0nAXPDIQIWzJbMCB7AmcWpGR8lSZfqI=