test, generate pairing code

.gitignore

@@ -22,3 +22,4 @@ _testmain.go
 *.exe
 *.test
 *.prof
+/gotubecast

LICENSE

@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2016 Florian Hülsmann
+Copyright (c) 2016 Florian Hülsmann <[email protected]>
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

README.md

@@ -1,2 +1,9 @@
 # gotubecast
-DIY YouTube TV
+gotubecast is a small Go program which you can use to make your own YouTube TV player.
+
+It connects to the YouTube Leanback API and generates a text stream providing pairing codes, video IDs,
+play/pause/seek/volume change commands etc. It doesn't have any dependencies and runs on any of the platforms supported by golang.
+For example, use it on a Raspberry Pi in combination with youtube-dl and omxplayer for a DIY Chromecast clone or make a YouTube TV
+extension for your favorite media center software.
+
+Work in progress.

main.go

@@ -0,0 +1,74 @@
+package main
+
+import (
+    "fmt"
+    "net/http"
+    "io/ioutil"
+    "net/url"
+    "encoding/json"
+)
+
+type LoungeTokenScreenList struct {
+    Screens []LoungeTokenScreenItem
+}
+
+type LoungeTokenScreenItem struct {
+    ScreenId string
+    LoungeToken string
+    Expiration uint64
+}
+
+func main() {
+    // screen id:
+    resp, err := http.Get("https://www.youtube.com/api/lounge/pairing/generate_screen_id")
+    if err != nil {
+        fmt.Println(err.Error())
+        return
+    }
+    defer resp.Body.Close()
+    body, err := ioutil.ReadAll(resp.Body)
+    if err != nil {
+        fmt.Println(err.Error())
+    }
+    screenId := string(body)
+    fmt.Println("screen_id", screenId)
+
+    // lounge token:
+    resp, err = http.PostForm("https://www.youtube.com/api/lounge/pairing/get_lounge_token_batch", url.Values{"screen_ids": {screenId}})
+    if err != nil {
+        fmt.Println(err.Error())
+        return
+    }
+    defer resp.Body.Close()
+    body, err = ioutil.ReadAll(resp.Body)
+    if err != nil {
+        fmt.Println(err.Error())
+    }
+    tokenObj := new(LoungeTokenScreenList)
+    err = json.Unmarshal(body, &tokenObj)
+    if err != nil {
+        fmt.Println(err.Error())
+        return
+    }
+    tokenScreenItem := tokenObj.Screens[0]
+    fmt.Println("lounge_token", tokenScreenItem.LoungeToken, tokenScreenItem.Expiration / 1000)
+
+    // pairing code:
+    resp, err = http.PostForm("https://www.youtube.com/api/lounge/pairing/get_pairing_code?ctx=pair", url.Values{
+        "access_type": {"permanent"},
+        "app": {"golang-test-838"},
+        "lounge_token": {tokenScreenItem.LoungeToken},
+        "screen_id": {tokenScreenItem.ScreenId},
+        "screen_name": {"Golang Test TV"},
+    })
+    if err != nil {
+        fmt.Println(err.Error())
+    }
+    defer resp.Body.Close()
+    body, err = ioutil.ReadAll(resp.Body)
+    if err != nil {
+        fmt.Println(err.Error())
+    }
+    pairCode := string(body)
+    fmt.Printf("pairing_code %s-%s-%s-%s\n", pairCode[0:3], pairCode[3:6], pairCode[6:9], pairCode[9:12])
+}