Fix SSH command execution

ATTENTION: the commandline signature is not checked at the moment!

example payload:
```
{"board":"arduino:avr:yun","port":"10.130.22.105","commandline":"wget {upload.verbose} -O /tmp/arduino_connector && wget https://raw.githubusercontent.com/xively/mosquitto/master/test/ssl/mosquitto.org.crt -O ~/mosquitto.org.crt && mv /tmp/arduino* ~ && chmod +x ~/arduino_connector && ~/arduino_connector","signature":null,"hex":"","filename":"Blink.hex","extra":{"auth":{"password":"user", "username":"user"},"wait_for_upload_port":false,"use_1200bps_touch":false,"network":true,"params_verbose":"http://10.130.22.222/arduino_connector","params_quiet":null,"verbose":true, "SSH":true}}
```

conn.go

@@ -21,7 +21,7 @@ import (
 	"github.com/arduino/arduino-create-agent/upload"
 	"github.com/arduino/arduino-create-agent/utilities"
 	"github.com/gin-gonic/gin"
-	"github.com/googollee/go-socket.io"
+	socketio "github.com/googollee/go-socket.io"
 )
 
 type connection struct {
@@ -72,6 +72,7 @@ type Upload struct {
 var uploadStatusStr string = "ProgrammerStatus"
 
 func uploadHandler(c *gin.Context) {
+
 	data := new(Upload)
 	c.BindJSON(data)
 
@@ -115,8 +116,12 @@ func uploadHandler(c *gin.Context) {
 		return
 	}
 
+	var filePaths []string
+	filePaths = append(filePaths, filePath)
+
 	for _, extraFile := range data.ExtraFiles {
 		path := filepath.Join(filepath.Dir(filePath), extraFile.Filename)
+		filePaths = append(filePaths, path)
 		log.Printf("Saving %s on %s", extraFile.Filename, path)
 		err := ioutil.WriteFile(path, extraFile.Hex, 0644)
 		if err != nil {
@@ -141,7 +146,7 @@ func uploadHandler(c *gin.Context) {
 		// Upload
 		if data.Extra.Network {
 			send(map[string]string{uploadStatusStr: "Starting", "Cmd": "Network"})
-			err = upload.Network(data.Port, data.Board, filePath, commandline, data.Extra.Auth, l, data.Extra.SSH)
+			err = upload.Network(data.Port, data.Board, filePaths, commandline, data.Extra.Auth, l, data.Extra.SSH)
 		} else {
 			send(map[string]string{uploadStatusStr: "Starting", "Cmd": "Serial"})
 			err = upload.Serial(data.Port, commandline, data.Extra, l)

main.go

@@ -17,7 +17,7 @@ import (
 	"github.com/arduino/arduino-create-agent/tools"
 	"github.com/arduino/arduino-create-agent/utilities"
 	"github.com/gin-gonic/gin"
-	"github.com/itsjamie/gin-cors"
+	cors "github.com/itsjamie/gin-cors"
 	"github.com/kardianos/osext"
 	"github.com/vharitonsky/iniflags"
 	//"github.com/sanbornm/go-selfupdate/selfupdate" #included in update.go to change heavily

upload/upload.go

@@ -20,7 +20,7 @@ import (
 	shellwords "github.com/mattn/go-shellwords"
 	"github.com/pkg/errors"
 	"github.com/sfreiberg/simplessh"
-	"go.bug.st/serial.v1"
+	serial "go.bug.st/serial.v1"
 )
 
 // Busy tells wether the programmer is doing something
@@ -81,7 +81,7 @@ func fixupPort(port, commandline string) string {
 }
 
 // Network performs a network upload
-func Network(port, board, file, commandline string, auth Auth, l Logger, SSH bool) error {
+func Network(port, board string, files []string, commandline string, auth Auth, l Logger, SSH bool) error {
 	Busy = true
 
 	// Defaults
@@ -94,11 +94,11 @@ func Network(port, board, file, commandline string, auth Auth, l Logger, SSH boo
 
 	commandline = fixupPort(port, commandline)
 
-	// try with a form
-	err := form(port, board, file, auth, l)
+	// try with ssh
+	err := ssh(port, files, commandline, auth, l, SSH)
 	if err != nil {
-		// try with ssh
-		err = ssh(port, file, commandline, auth, l, SSH)
+		// fallback on form
+		err = form(port, board, files[0], auth, l)
 	}
 
 	Busy = false
@@ -365,7 +365,7 @@ func form(port, board, file string, auth Auth, l Logger) error {
 	return nil
 }
 
-func ssh(port, file, commandline string, auth Auth, l Logger, SSH bool) error {
+func ssh(port string, files []string, commandline string, auth Auth, l Logger, SSH bool) error {
 	// Connect via ssh
 	client, err := simplessh.ConnectWithPassword(port+":22", auth.Username, auth.Password)
 	debug(l, "Connect via ssh ", client, err)
@@ -374,24 +374,29 @@ func ssh(port, file, commandline string, auth Auth, l Logger, SSH bool) error {
 	}
 	defer client.Close()
 
-	if !SSH {
-		// Copy the sketch
-		err = client.Upload(file, "/tmp/sketch"+filepath.Ext(file))
-		debug(l, "Copy the sketch ", err)
+	// Copy the sketch
+	for _, file := range files {
+		fileName := "/tmp/sketch" + filepath.Ext(file)
+		if SSH {
+			// don't rename files
+			fileName = "/tmp/" + filepath.Base(file)
+		}
+		err = client.Upload(file, fileName)
+		debug(l, "Copy "+filepath.Ext(file), err)
 		if err != nil {
 			return errors.Wrapf(err, "Copy sketch")
 		}
+	}
 
-		// very special case for Yun (remove once AVR boards.txt is fixed)
-		if commandline == "" {
-			commandline = "merge-sketch-with-bootloader.lua /tmp/sketch.hex && /usr/bin/run-avrdude /tmp/sketch.hex"
-		}
+	// very special case for Yun (remove once AVR boards.txt is fixed)
+	if commandline == "" {
+		commandline = "merge-sketch-with-bootloader.lua /tmp/sketch.hex && /usr/bin/run-avrdude /tmp/sketch.hex"
 	}
 
 	// Execute commandline
 	output, err := client.Exec(commandline)
 	info(l, output)
-	debug(l, "Execute commandline ", commandline, output, err)
+	debug(l, "Execute commandline ", commandline, string(output), err)
 	if err != nil {
 		return errors.Wrapf(err, "Execute commandline")
 	}