adds ability to login using a token

main.go

@@ -48,8 +48,9 @@ func main() {
 		cfg = ini.Empty()
 	}
 
-	if !cfg.Section("auth").HasKey("email") ||
-		!cfg.Section("auth").HasKey("password") {
+	if (!cfg.Section("auth").HasKey("email") ||
+		!cfg.Section("auth").HasKey("password")) &&
+		!cfg.Section("auth").HasKey("token") {
 		cfg.Section("auth").NewKey("email", "your@email.com")
 		cfg.Section("auth").NewKey("password", "yourpassword")
 		cfg.Section("channels").NewKey("channelid1", "C:\\full\\path\\1")
@@ -86,9 +87,14 @@ func main() {
 		return
 	}
 
-	dg, err := discordgo.New(
-		cfg.Section("auth").Key("email").String(),
-		cfg.Section("auth").Key("password").String())
+	var dg *discordgo.Session
+	if cfg.Section("auth").HasKey("token") {
+		dg, err = discordgo.New(cfg.Section("auth").Key("token").String())
+	} else {
+		dg, err = discordgo.New(
+			cfg.Section("auth").Key("email").String(),
+			cfg.Section("auth").Key("password").String())
+	}
 	if err != nil {
 		fmt.Println("error creating Discord session,", err)
 		return

readme.md

@@ -5,5 +5,7 @@ This is a simple tool which downloads pictures posted in discord channels of you
 ## How to use?
 When you run the tool for the first time it creates an `config.ini` file with example values. Edit these values and run the tool for a second time. It should connect to discords api and wait for new messages.
 
+In case you are using two-factor authentication you have to login using your token. Remove the the email and password lines under the auth section in the config file and instead put in `token = <your token>`. You can acquire your token from the developer tools in your browser (`localStorage.token`).
+
 ### Where do I get the channel id?
 Open discord in your browser and go to the channel you want to monitor. In your adress bar should be an URL like `https://discordapp.com/channels/1234/5678`. The number after the last slash is the channel id, in this case `5678`.