Facebook HD Video Downloader

Adds a download link for Facebook videos. Works for HD videos. Fork from styfle version.

Ajankohdalta 25.4.2015. Katso uusin versio.

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Userscripts to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install a user script manager extension to install this script.

(I already have a user script manager, let me install it!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(I already have a user style manager, let me install it!)

// ==UserScript==
// @name            Facebook HD Video Downloader
// @description     Adds a download link for Facebook videos. Works for HD videos. Fork from styfle version.
// @author          EThaiZone
// @include     http://facebook.com/video.php*
// @include     http://*.facebook.com/video.php*
// @include     https://facebook.com/video.php*
// @include     https://*.facebook.com/video.php*
// @include     http://facebook.com/video/*
// @include     http://*.facebook.com/video/*
// @include     https://facebook.com/video/*
// @include     https://*.facebook.com/video/*
// @include     http://facebook.com/*/videos/*
// @include     http://*.facebook.com/*/videos/*
// @include     https://facebook.com/*/videos/*
// @include     https://*.facebook.com/*/videos/*
// @version 0.0.1.20150425121520
// @namespace https://greasyfork.org/users/3747
// ==/UserScript==

(function () {

    function renderFBDownloader() {

        // Get the side bar so we can append to it later
        var sidebar = document.getElementById('fbPhotoPageActions');

        // Get all the <embed> elements
        var embedElements = document.querySelectorAll('embed[flashvars]');

        // Flag if we found the video url or not
        var found = false;

        for (var i = 0; i < embedElements.length; i++) {
            // Get the flashvars attribute and decode it
            var flashvars = decodeURIComponent(embedElements[i].getAttribute('flashvars'));

            // Check if this string contains the code we're looking for
            var hd_src_index = flashvars.indexOf('hd_src');
            var p_width_index = flashvars.indexOf('&width=');
            if (hd_src_index > -1 && p_width_index > -1) {
                // This string contains the payload we are looking for so parse it
                var obj = JSON.parse(flashvars.slice(7, p_width_index));
                var video_data = obj.video_data[0];

                //var title = video_data.video_id;
                var title = document.querySelectorAll('h2.uiHeaderTitle')[0].innerText;

                // High Def
                if (video_data.hd_src)
                {
                    var hd_link = document.createElement('a');
                    hd_link.href = video_data.hd_src.replace("https://", "http://");
                    hd_link.innerHTML = 'Download HD Video';
                    hd_link.className = 'fbPhotosPhotoActionsItem';
                    hd_link.download = title + '_hd.mp4';
                    sidebar.appendChild(hd_link);
                }

                // Low Def
                if (video_data.sd_src)
                {
                    var sd_link = document.createElement('a');
                    sd_link.href = video_data.sd_src.replace("https://", "http://");
                    sd_link.innerHTML = 'Download SD Video';
                    sd_link.className = 'fbPhotosPhotoActionsItem';
                    sd_link.download = title + '_sd.mp4';
                    sidebar.appendChild(sd_link);
                }

                found = true;
            } // end if

        } // end loop

        if (!found) {
            var not_found = document.createElement('span');
            not_found.innerHTML = 'No download link :(';
            sidebar.appendChild(not_found);
        }
    }

    function doExec() {
        try {
            log("Find flashvars.");
            var embedElements = document.querySelectorAll('embed[flashvars]');

            if (embedElements.length > 0) {
                renderFBDownloader();
                log("Video links rendered.");
            } else {
                setTimeout(doExec, 200);
                log("Try again.");
            }
        } catch(e) {
            //setTimeout(doExec, 1000);
        }
    }

    function log(msg) {
        // console.log("[FB Video Downloader] " + msg);
    }

    log("First Start.");
    doExec();
})();