// ==UserScript==
// @name Recurbate download
// @version 1.1.2
// @description Adds a download button for each video on recurbate.com
// @author razorwax
// @updateURL https://openuserjs.org/meta/razorwax/Recurbate_download.meta.js
// @downloadURL https://openuserjs.org/install/razorwax/Recurbate_download.user.js
// @match https://recurbate.com/play.php*
// @license MIT
// ==/UserScript==

function ErrorPrint(errorReason)
{
var error = "Recurbate Download Error! [reason = " + errorReason + "]";
console.error(error);
window.alert(error);
}

function DownloadVideo(url)
{
if (!url)
{
ErrorPrint("find_video_src_failure");
return;
}
window.open(url, '_blank');
}

function FindSourceFromUnstartedVideo(videoBtn)
{
// Find token and id
var token = videoBtn.attr("data-token");
var id = videoBtn.attr("data-video-id");
if (token && id)
{
// Send video request to server
var url = "/api/get.php?video="+id+"&token="+token;
$.get(url, function(data)
{
// Find src from video tag in the response
if (data.includes("<video") && data.includes("src="))
{
var src = data.match(/src=".*"/m);
if (src.length > 0)
{
// Get the source and download it
src = src[0];
src = src.substring(5, src.length - 1);
DownloadVideo(src);
}
}
else
{
window.alert("Server blocked request, reason = " + data);
}
});
}
else
{
ErrorPrint("token_and_id_failure");
}
}

function FindSourceFromStartedVideo()
{
var foundVideo;
var searchVideos = $("video");
if (searchVideos.length == 1)
{
// Guess this is the video we are looking for
foundVideo = searchVideos[0];
}
else
{
// Multiple videos found, search for the correct one
var videoIdRegex = /video_\d+/;
for (var video of searchVideos)
{
if (video.id.match(videoIdRegex))
{
foundVideo = video;
break;
}
}
}

if (foundVideo)
{
var source = foundVideo.src;
if (!source)
{
// Try to find video source by source element
var sourceElem = $(foundVideo).find("source");
if (sourceElem && sourceElem.length > 0)
{
source = sourceElem[0].src;
}
}
DownloadVideo(source);
}
else
{
ErrorPrint("find_video_failure");
}
}

function AddDownloadButton(appendToElem)
{
var downloadBtn = $("<button style=\"margin-left: 10px;\" class=\"btn btn-warning btn-sm\"><b style=\"color:#212528\">Download</b></button>").appendTo(appendToElem);
downloadBtn.on("click", function()
{
// Download button press
var videoBtns = $("#play_button");
if (videoBtns.length > 0)
{
// Found the unstarted video player, find src from it
FindSourceFromUnstartedVideo($(videoBtns[0]));
}
else
{
// Video must have been started
FindSourceFromStartedVideo();
}
});
}

// Create download button
$(function ()
{
var addTo = $("a.bookmark");
if (addTo.length == 1)
{
addTo = addTo.parent();
}
else
{
addTo = $("div.video-info").children("div");
}

if (addTo.length > 0)
{
AddDownloadButton($(addTo[0]));
}
else
{
ErrorPrint("add_download_btn_failure");
}
});