Xml-escape mimetype in http-upload (thx Zash).

httpupload.go

@@ -118,6 +118,8 @@ func httpUpload(client *xmpp.Client, jserver string, filePath string) string {
 
 	// Get mime type
 	mimeType := mimetype.Detect(buffer).String()
+	var mimeTypeEscaped bytes.Buffer
+	xml.Escape(&mimeTypeEscaped, []byte(mimeType))
 
 	// Get file name
 	fileName := filepath.Base(filePath)
@@ -199,7 +201,7 @@ func httpUpload(client *xmpp.Client, jserver string, filePath string) string {
 	_, err = client.RawInformation(client.JID(), uploadComponent, id, "get",
 		"<request xmlns='urn:xmpp:http:upload:0' filename='"+
 			fileNameEscaped.String()+"' size='"+strconv.FormatInt(fileSize, 10)+
-			"' content-type='"+mimeType+"' />")
+			"' content-type='"+mimeTypeEscaped.String()+"' />")
 	if err != nil {
 		log.Fatal(err)
 	}
@@ -219,7 +221,7 @@ func httpUpload(client *xmpp.Client, jserver string, filePath string) string {
 	if err != nil {
 		log.Fatal(err)
 	}
-	req.Header.Set("Content-Type", mimeType)
+	req.Header.Set("Content-Type", mimeTypeEscaped.String())
 	for _, h := range iqHttpUploadSlotXML.Put.Headers {
 		switch h.Name {
 		case "Authorization", "Cookie", "Expires":