@@ -0,0 +1,2 @@
+.env
+__debug_bin*

@@ -0,0 +1,15 @@
+{
+    // Usare IntelliSense per informazioni sui possibili attributi.
+    // Al passaggio del mouse vengono visualizzate le descrizioni degli attributi esistenti.
+    // Per altre informazioni, visitare: https://go.microsoft.com/fwlink/?linkid=830387
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "name": "Launch Package",
+            "type": "go",
+            "request": "launch",
+            "mode": "auto",
+            "program": "."
+        }
+    ]
+}

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2023 Marco Andronaco
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

@@ -0,0 +1,14 @@
+# FixYouTube
+Embed YouTube videos on Telegram, Discord and more!
+
+## How to use:
+Replace `www.youtube.com` or `youtu.be` with `y.outube.duckdns.org` to fix embeds for short videos.
+
+https://github.com/BiRabittoh/FixYouTube/assets/26506860/e1ad5397-41c8-4073-9b3e-598c66241255
+
+## Instructions
+
+### Debug
+```
+go run .
+```

@@ -0,0 +1,118 @@
+package main
+
+import (
+	"bytes"
+	"html/template"
+	"log"
+	"net/http"
+	"net/url"
+	"os"
+	"slices"
+	"time"
+
+	"github.com/BiRabittoh/fixyoutube-go/invidious"
+	"github.com/gorilla/mux"
+	"github.com/joho/godotenv"
+)
+
+var templatesDirectory = "templates/"
+var indexTemplate = template.Must(template.ParseFiles(templatesDirectory + "index.html"))
+var videoTemplate = template.Must(template.ParseFiles(templatesDirectory + "video.html"))
+
+func indexHandler(w http.ResponseWriter, r *http.Request) {
+	buf := &bytes.Buffer{}
+	err := indexTemplate.Execute(buf, nil)
+	if err != nil {
+		http.Error(w, err.Error(), http.StatusInternalServerError)
+		return
+	}
+
+	buf.WriteTo(w)
+}
+
+func watchHandler(newsapi *invidious.Client) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		u, err := url.Parse(r.URL.String())
+		if err != nil {
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		params := u.Query()
+		videoId := params.Get("v")
+
+		video, err := newsapi.FetchEverything(videoId)
+		if err != nil {
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		buf := &bytes.Buffer{}
+		err = videoTemplate.Execute(buf, video)
+		if err != nil {
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		buf.WriteTo(w)
+	}
+}
+
+var blacklist = []string{"favicon.ico", "robots.txt"}
+
+func shortHandler(newsapi *invidious.Client) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		videoId := mux.Vars(r)["videoId"]
+
+		if slices.Contains(blacklist, videoId) {
+			http.Error(w, "Not a valid ID.", http.StatusBadRequest)
+			return
+		}
+
+		video, err := newsapi.FetchEverything(videoId)
+		if err != nil {
+			http.Error(w, err.Error(), http.StatusBadRequest)
+			return
+		}
+
+		buf := &bytes.Buffer{}
+		err = videoTemplate.Execute(buf, video)
+		if err != nil {
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		buf.WriteTo(w)
+	}
+}
+
+func main() {
+	err := godotenv.Load()
+	if err != nil {
+		log.Println("Error loading .env file")
+	}
+
+	port := os.Getenv("PORT")
+	if port == "" {
+		port = "3000"
+	}
+
+	myClient := &http.Client{Timeout: 10 * time.Second}
+	videoapi := invidious.NewClient(myClient, "y.birabittoh.duckdns.org")
+
+	r := mux.NewRouter()
+	r.HandleFunc("/", indexHandler)
+	r.HandleFunc("/watch", watchHandler(videoapi))
+	r.HandleFunc("/{videoId}", shortHandler(videoapi))
+	//r.HandleFunc("/proxy/{videoId}", proxyHandler)
+
+	/*
+		// native go implementation (useless until february 2024)
+		r := http.NewServeMux()
+		r.HandleFunc("/watch", watchHandler(videoapi))
+		r.HandleFunc("/{videoId}/", shortHandler(videoapi))
+		r.HandleFunc("/", indexHandler)
+	*/
+	println("Serving on port", port)
+	http.ListenAndServe(":"+port, r)
+}

@@ -0,0 +1,7 @@
+module github.com/BiRabittoh/fixyoutube-go
+
+go 1.21.5
+
+require github.com/joho/godotenv v1.5.1
+
+require github.com/gorilla/mux v1.8.1

@@ -0,0 +1,4 @@
+github.com/gorilla/mux v1.8.1 h1:TuBL49tXwgrFYWhqrNgrUNEY92u81SPhu7sTdzQEiWY=
+github.com/gorilla/mux v1.8.1/go.mod h1:AKf9I4AEqPTmMytcMc0KkNouC66V3BtZ4qD5fmWSiMQ=
+github.com/joho/godotenv v1.5.1 h1:7eLL/+HRGLY0ldzfGMeQkb7vMd0as4CfYvUVzLqw0N0=
+github.com/joho/godotenv v1.5.1/go.mod h1:f4LDr5Voq0i2e/R5DDNOoa2zzDfwtkZa6DnEwAbqwq4=

@@ -0,0 +1,91 @@
+package invidious
+
+import (
+	"encoding/json"
+	"fmt"
+	"io"
+	"net/http"
+	"net/url"
+	"strconv"
+	"strings"
+)
+
+type Client struct {
+	http     *http.Client
+	Instance string
+}
+
+type Format struct {
+	Url       string `json:"url"`
+	Container string `json:"container"`
+	Size      string `json:"size"`
+}
+
+type Video struct {
+	VideoId       string   `json:"videoId"`
+	Title         string   `json:"title"`
+	Description   string   `json:"description"`
+	Uploader      string   `json:"author"`
+	Duration      int      `json:"lengthSeconds"`
+	FormatStreams []Format `json:"formatStreams"`
+	Url           string
+	Height        int
+	Width         int
+}
+
+func filter[T any](ss []T, test func(T) bool) (ret []T) {
+	for _, s := range ss {
+		if test(s) {
+			ret = append(ret, s)
+		}
+	}
+	return
+}
+
+func parseOrZero(number string) int {
+	res, err := strconv.Atoi(number)
+	if err != nil {
+		return 0
+	}
+	return res
+}
+
+func (c *Client) FetchEverything(videoId string) (*Video, error) {
+	endpoint := fmt.Sprintf("https://%s/api/v1/videos/%s?fields=videoId,title,description,author,lengthSeconds,size,formatStreams", c.Instance, url.QueryEscape(videoId))
+	resp, err := c.http.Get(endpoint)
+	if err != nil {
+		return nil, err
+	}
+
+	defer resp.Body.Close()
+
+	body, err := io.ReadAll(resp.Body)
+	if err != nil {
+		return nil, err
+	}
+
+	if resp.StatusCode != http.StatusOK {
+		return nil, fmt.Errorf(string(body))
+	}
+
+	res := &Video{}
+	err = json.Unmarshal(body, res)
+	if err != nil {
+		return nil, err
+	}
+
+	mp4Test := func(f Format) bool { return f.Container == "mp4" }
+	mp4Formats := filter(res.FormatStreams, mp4Test)
+	myFormat := mp4Formats[len(mp4Formats)-1]
+	mySize := strings.Split(myFormat.Size, "x")
+
+	res.Url = myFormat.Url
+	res.Width = parseOrZero(mySize[0])
+	res.Height = parseOrZero(mySize[1])
+
+	return res, err
+}
+
+func NewClient(httpClient *http.Client, instance string) *Client {
+	return &Client{httpClient, instance}
+}

@@ -0,0 +1,48 @@
+<!doctype html>
+<html lang="en">
+
+<head>
+    <meta charset="utf-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1">
+    <meta property="og:title" content="FixYouTube" />
+    <meta property="og:site_name" content="FixYouTube" />
+    <meta property="og:description" content="Embed YouTube videos on Telegram, Discord and more!" />
+    <title>FixYouTube</title>
+
+    <link rel="icon"
+        href="data:image/svg+xml,<svg xmlns=%22http://www.w3.org/2000/svg%22 viewBox=%220 0 100 100%22><text y=%22.9em%22 font-size=%2290%22>🛠</text></svg>">
+    <link rel="stylesheet" href="https://unpkg.com/@picocss/pico@latest/css/pico.min.css">
+</head>
+
+<body>
+    <main class="container" style="max-width: 35rem">
+        <hgroup>
+            <h1>FixYouTube</h1>
+            <h2>Embed YouTube videos on Telegram, Discord and more!</h2>
+        </hgroup>
+        <p>FixYouTube serves fixed YouTube video embeds. Heavily inspired by <a href="https://fxtwitter.com">fxtwitter.com</a> and <a href="https://ddinstagram.com">ddinstagram.com</a>.</p>
+
+        <section>
+            <header>
+                <h3 style="margin-bottom: 4px">How to Use</h3>
+                <p>Replace <code>www.youtube.com</code> or <code>youtu.be</code> with <span id="changeme">this domain</span> to fix embeds for short videos.</p>
+            </header>
+            <video
+                src="https://github.com/BiRabittoh/FixYouTube/assets/26506860/2896d39e-a86e-47ce-939a-785b73d11683"
+                style="width: 100%; max-height: 100%;" autoplay loop muted controls>
+                Your browser does not support the video tag.
+            </video>
+            <hr>
+            <small><a href="https://github.com/BiRabittoh/FixYouTube" target="_blank">Source code available in GitHub!</a></small>
+            <br>
+            <small>• YouTube is a trademark of Google LLC. This app is not affiliated with Google LLC.</small>
+        </section>
+    </main>
+    <script>
+        code = document.createElement('code');
+        code.innerText = window.location.host;
+        document.getElementById('changeme').replaceWith(code);
+    </script>
+</body>
+
+</html>

@@ -0,0 +1,33 @@
+<!DOCTYPE html>
+<html lang="und">
+    ███████ ██ ██   ██ ██    ██   ███   ██   ██ ██████ ██   ██ ██████  ███████ 
+    ██      ██  ██ ██   ██  ██  ██   ██ ██   ██   ██   ██   ██ ██   ██ ██      
+    █████   ██   ███     ████   ██   ██ ██   ██   ██   ██   ██ ██████  █████   
+    ██      ██  ██ ██     ██    ██   ██ ██   ██   ██   ██   ██ ██   ██ ██      
+    ██      ██ ██   ██    ██      ███     ███     ██     ███   ██████  ███████ 
+    ██
+    ██  A better way to embed YouTube videos on Telegram (inspired by FixTweet).
+    ██  
+<head>
+    <link rel="canonical" href="https://www.youtube.com/watch?v={{ .VideoId }}" />
+    <meta property="theme-color" content="0000FF" />
+    <meta property="twitter:card" content="player" />
+    <meta property="twitter:site" content="{{ .Uploader }}" />
+    <meta property="twitter:creator" content="{{ .Uploader }}" />
+    <meta property="twitter:title" content="{{ .Title }}" />
+    <!--<meta http-equiv="refresh" content="0;url=https://www.youtube.com/watch?v={{ .VideoId }}" />-->
+    <meta property="og:url" content="https://www.youtube.com/watch?v={{ .VideoId }}" />
+    <meta property="og:title" content="{{ .Title }}" />
+    <meta property="og:description" content="{{ .Description }}" />
+    <meta property="og:site_name" content="FixYouTube ({{ .Uploader }})" />
+    <meta property="twitter:image" content="0" />
+    <meta property="twitter:player:stream:content_type" content="video/mp4" />
+    <meta property="twitter:player:height" content="{{ .Height }}" />
+    <meta property="twitter:player:width" content="{{ .Width }}" />
+    <meta property="og:video" content="/proxy/{{ .VideoId }}" />
+    <meta property="og:video:secure_url" content="/proxy/{{ .VideoId }}" />
+    <meta property="og:video:height" content="{{ .Height }}" />
+    <meta property="og:video:width" content="{{ .Width }}" />
+    <meta property="og:video:duration" content="{{ .Duration }}">
+    <meta property="og:video:type" content="video/mp4" />
+</head><body></body></html>