3 files changed, 76 insertions, 0 deletions
diff --git a/modules/ytdl/youtube-dl-Darwin b/modules/ytdl/youtube-dl-Darwin
new file mode 100755
index 0000000..97238a0
--- /dev/null
+++ b/modules/ytdl/youtube-dl-Darwin
diff --git a/modules/ytdl/ytdl.html b/modules/ytdl/ytdl.html
new file mode 100644
index 0000000..e054b97
--- /dev/null
+++ b/modules/ytdl/ytdl.html
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+<!DOCTYPE html>
+<html>
+<head>
+<meta charset="utf-8">
+<title>YTDL</title>
+<script>
+function retrieve_link(){
+	var link=document.getElementById("inputlink").value;
+	var xhr=new XMLHttpRequest();
+	xhr.addEventListener("readystatechange",function(){
+		if(xhr.readyState<4){
+			show_output(["(waiting to send)","(request opened)","(headers received)","(loading)"][xhr.readyState]);
+		}
+		if(xhr.readyState!=4)return;
+		var response;
+		if(xhr.responseText==null)response="(null)";
+		else response=xhr.responseText;
+		show_output(response,/^https?:\/\//.test(response));
+	});
+	xhr.open("GET","/ytdl/"+encodeURIComponent(link));
+	xhr.send();
+}
+
+function show_output(text,link){
+	var output=document.getElementById("output");
+	if(output.firstChild)output.removeChild(output.firstChild);
+	var e;
+	if(link){
+		e=document.createElement("a");
+		e.href=text;
+		e.appendChild(document.createTextNode(text));
+	} else e=document.createTextNode(text);
+	output.appendChild(e);
+}
+</script>
+</head>
+<body>
+<h1>YTDL</h1>
+<p>This page uses the <code>youtube-dl</code> utility to provide a download link for a given youtube video. It just selects whatever format <code>youtube-dl</code> considers "best"; this is normally video+audio, in the highest quality provided by YouTube.
+Enter a link or a video id below:</p>
+<input type="text" id="inputlink" size="100"><br>
+<input type="button" value="Retrieve link" onclick="retrieve_link()"><br>
+<pre id="output" style="width:100%;word-wrap:break-word;"></pre>
+</body>
+</html>
diff --git a/modules/ytdl/ytdl.js b/modules/ytdl/ytdl.js
new file mode 100644
index 0000000..3bbea16
--- /dev/null
+++ b/modules/ytdl/ytdl.js
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+var cmn=require("../$common.js"),
+    child_process=require("child_process");
+
+module.exports=function(app,io,moddir){
+	app.param("ytdl_id",function(req,res,next,link){
+		link=unescape(link);
+		req.params.ytdl_id=link;
+		if(/['"\x00-\x1f]/.test(link)){
+			res.status(400).end("Invalid youtube link or id");
+			return;
+		}
+		next();
+	});
+	app.get("/ytdl",function(req,res){
+		res.sendFile(moddir+"/ytdl.html");
+	});
+	app.get("/ytdl/:ytdl_id",function(req,res){
+		var link=req.params.ytdl_id;
+		var cp=child_process.execFile("/usr/bin/env",["youtube-dl","-gf","best",link],{},function(err,stdout,stderr){
+			if(err){
+				//console.log(err);
+				res.status(404);
+				res.set("Content-Type","text/plain");
+				res.end("Youtube video id not found\n\n"+stdout+"\n\n"+stderr);
+				return;
+			}
+			res.set("Content-Type","text/plain");
+			res.send(stdout);
+		});
+	});
+};