Facebook HD Video Downloader (Not working!)

(Not working! Read more at Additional info.) Adds a download link for Facebook videos. Works for HD videos.

Dovrai installare un'estensione come Tampermonkey, Greasemonkey o Violentmonkey per installare questo script.

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

Dovrai installare un'estensione come Tampermonkey o Violentmonkey per installare questo script.

Dovrai installare un'estensione come Tampermonkey o Userscripts per installare questo script.

Dovrai installare un'estensione come ad esempio Tampermonkey per installare questo script.

Dovrai installare un gestore di script utente per installare questo script.

(Ho già un gestore di script utente, lasciamelo installare!)

Dovrai installare un'estensione come ad esempio Stylus per installare questo stile.

Dovrai installare un'estensione come ad esempio Stylus per installare questo stile.

Dovrai installare un'estensione come ad esempio Stylus per installare questo stile.

Dovrai installare un'estensione per la gestione degli stili utente per installare questo stile.

Dovrai installare un'estensione per la gestione degli stili utente per installare questo stile.

Dovrai installare un'estensione per la gestione degli stili utente per installare questo stile.

(Ho già un gestore di stile utente, lasciamelo installare!)

// ==UserScript==
// @name            Facebook HD Video Downloader (Not working!)
// @description     (Not working! Read more at Additional info.) Adds a download link for Facebook videos. Works for HD videos.
// @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/*
// @include     https://*.facebook.com/*
// @version 0.1.6.8
// @namespace https://greasyfork.org/users/3747
// @require http://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js
// ==/UserScript==


// My code
(function () {

    function insertAfter(newNode, referenceNode) {
        referenceNode.parentNode.insertBefore(newNode, referenceNode.nextSibling);
    }
    
    if (typeof jQuery == 'undefined') {
        alert('[Facebook HD Video Downloader]\n\nYour greasemonkey or tampermonkey is too old. Please update.');
        return;
    }

    var patternfbh = /facebook\.com\/(.*?)/;
    if (! document.URL.match(patternfbh)) {
        return;
    }

    jQuery('head').append('<link rel="stylesheet" href="//maxcdn.bootstrapcdn.com/font-awesome/4.6.3/css/font-awesome.min.css">');

var css = "\
.dl {\
    display: inline-block;\
    width: 1em;\
    height: 1em;\
}\
.dl_container {\
    z-index: 9999;\
    position: relative;\
    float: right;\
    margin: 5px 5px 0 0;\
    padding: 2px 4px 2px 4px;\
    background: white;\
    border-radius: 4px;\
    opacity: 0.5;\
    transition: opacity 1s, max-width 1s ease-in-out;\
    -moz-transition: opacity 1s, max-width 1s ease-in-out;\
    -webkit-transition: opacity 1s, max-width 1s ease-in-out;\
    color: black !important;\
    text-decoration: none;\
    display: block;\
    height: 1.2em;\
    overflow: hidden;\
    text-align: center;\
    max-width: 1em;\
    white-space: nowrap;\
}\
span[display=\"inline\"] .dl_container {\
    margin: 5px 30px 0 0;\
    display: none !important;\
}\
.dl_container:hover {\
    max-width: 140px;\
    opacity: 1;\
    text-decoration: none;\
}\
";

    jQuery('head').append('<style type="text/css">' + css + '</style>');

    var iconDownload = jQuery('<div/>');
    iconDownload = jQuery('<i class="fa fa-download dl"></i>');
    
    function renderFBDownloader(counter) {

        // Get the base so we can append to it later
        var base = jQuery('.comment_link').parent('span').parent('div');
        if (base.length === 0) {
            base = jQuery('.UFILikeLink').parent('div').parent('span').parent('div'); // check link like 
        }
        if (base.length === 0) {
            base = jQuery('.userContent'); // or else I will attach to userContent.
        }
        base = base[0];

        /*
         * NOTE: Don't use jquery on <video>, it will broke them.
         */

        // Get all the <embed> elements
        var videoElements = document.querySelectorAll('video:not([fb_download_link_ethaizone])');
        var embedElements = document.querySelectorAll('embed[flashvars]');

        for (var i = 0; i < videoElements.length; i++) {

            var embed = videoElements[i].querySelectorAll('embed[flashvars]');

            if (embed.length === 0) {
                continue;
            }

            videoElements[i].setAttribute('fb_download_link_ethaizone', '1');

            embed = embed[0];

            // Get the flashvars attribute and decode it
            var flashvars = decodeURIComponent(embed.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));

                if (typeof obj.video_data.progressive == 'undefined') {
                    log('Something wrong in obj.');
                    console.log(obj);
                    continue;
                }
                var video_data = obj.video_data.progressive;

                //console.log(video_data);
                
                if (typeof video_data.video_id == 'undefined') {
                    console.log(video_data);
                } else {
                    var title = video_data.video_id;
                }
                //var title = document.querySelectorAll('h2.uiHeaderTitle')[0].innerText;

                // thank css style from fork of nhtera.
                var link = jQuery('<a/>');
                link.addClass('dl_container');
                link.addClass('fbPhotosPhotoActionsItem');
                link.addClass('fb_download_link_ethaizone');
                link.attr('fb_download_link_ethaizone');
                link.append(iconDownload[0].outerHTML);
                link.append('&nbsp;');

                var labelText = null;
                var downloadUrl = null;
                var filename = null;

                // High Def
                if (typeof video_data.hd_src != 'undefined' && video_data.hd_src) {
                    labelText = 'Download (HD)';
                    filename = title + '_hd.mp4';
                    downloadUrl = video_data.hd_src;
                } else if (typeof video_data.sd_src != 'undefined' && video_data.sd_src) {
                    labelText = 'Download (SD)';
                    filename = title + '_sd.mp4';
                    downloadUrl = video_data.sd_src;
                }

                if (downloadUrl) {
                    link.append('<span class="status">' + labelText + '</span>');
                    link.prop('download', filename);
                    link.prop('href', downloadUrl);
                    link.prop('target', '_blank');
                    insertAfter(link[0], videoElements[i]);
                } else {
                    log('Something wrong in video_data.');
                    console.log(video_data);
                    continue;
                }

                log('Success.');
            } // end if

        } // end loop

        return videoElements.length;
    }

    var counter = 0;
    var delay = 1500;
    function doExec() {
        if (jQuery('#mainContainer').length < 1) {
            // log('No maincontaimer.');
            return false;
        }
        counter++;
        try {
            var found = renderFBDownloader(counter);
            // if (found !== 0 && delay == 1000) {
            //     delay = 3000;
            //     log('First found. Decrease delay. ('+ delay +')');
            // }

            // if (counter > 10 && delay == 1000) {
            //     delay = 5000;
            //     log('Too long and not found anything. Decrease delay. ('+ delay +')');
            // }
            // if (counter < 30) {
            //     setTimeout(doExec, delay);
            // }
            setTimeout(doExec, delay);
            // log('Check!! No:'+counter+' Found: ' + renderFBDownloader(counter));
        } catch(e) {
            log("Found error!");
            console.log(e);
            //setTimeout(doExec, 1000);
        }

        return true;
    }

    function log(msg) {
        //alert(msg);
        console.log("[FB Video Downloader] " + msg);
    }
    if (doExec()) {
        var myVersion = GM_info.script.version;
        log("First start. Version "+myVersion);
    }
})();