Vimeo jQuery Downloader v1.0 (Source)

/********************************
    Vimeo jQuery Downloader
    v1.0
    9/5/2014

    Gets download links from
    Vimeo videos
********************************/
var jq_config = {
    jquery_url: "//ajax.googleapis.com/ajax/libs/jquery/2.0.2/jquery.min.js",
    info: "Vimeo jQuery Downloader v1.0",

    vimeo_codec: 'h264',
    video_types: {'hd': 'HD MP4', 'sd': 'SD MP4'},

    failed_tries: 0
};

// Main function
function main(){
    if (window.location.hostname != 'vimeo.com'){
        alert("This script will only work on vimeo.com!");
        return;
    }

    // Need to get the configUrl data from the page
    // before it's removed from the DOM by Vimeo's scripts
    $.ajax({
        url: window.location.href,
        type: 'GET',
        async: true,
        error: function(data){
            modal.open("Error", "There was an error! Details printed in the browser console.");
            console.log(data);
            return;
        },
        success: function(data){
            // If there's no return data, try again (10 tries max, .4 second intervals)
            if (!data){
                jq_config.failed_tries++;
                console.log("Failed to get page. Retrying...");
                if (jq_config.failed_tries >= 10){
                    modal.open("Failed to get page", "Couldn't get page info. Try again in a moment.");
                    return;
                }
                setTimeout(function(){
                    main();
                }, 400);
                return;
            }

            var page = $(data);
            var player = page.find('.player_container .player');
            if (!player.length){
                modal.open("Something went wrong", "Couldn't find the video player on this page. Maybe the site updated.");
                return;
            }

            // Get configUrl data
            // Use this to try to get the download urls of the video
            var config_url = player.data('configUrl');
            $.ajax({
                url: config_url,
                success: function(data){
                    // When the stars are right, we should get the URL data back
                    // If not, display a failure message
                    if (data.message){
                        modal.open("Download Not Found", "Could not retrieve download URLs.");
                    } else {
                        var videos = data.request.files[jq_config.vimeo_codec];

                        // Compile html code
                        var video_urls = "";
                        $.each(videos, function(k, v){
                            if (jq_config.video_types[k]){
                                video_urls += "<a class='btn' target='_blank' href='"+v.url+"'><i class='fa fa-download'></i> "+jq_config.video_types[k]+"</a>";
                            }
                        });

                        // Failsafe
                        if (video_urls == ''){
                            modal.open("Download Not Found", "Could not find download URLs.");
                            return;
                        }

                        modal.open("Download Video", video_urls);
                    }
                }
            });
        }
    });
}

// Load jQuery
function jquery_ready(main_callback){
    if (window.jQuery){
        main_callback(window.jQuery);
        return;
    }

    // Attach jQuery to the page
    var script = document.createElement("script");
    script.src = jq_config.jquery_url;
    script.type = 'text/javascript';
    document.getElementsByTagName("head")[0].appendChild(script);

    // Wait for it to load
    var checkReady = function(check_callback){
        if (window.jQuery){
            check_callback(jQuery);
        } else {
            setTimeout(function(){checkReady(check_callback);}, 20);
        }
    };

    checkReady(function($){
        $(main_callback);
    });
}

// Initialize Modal code and extra stuff
if (typeof modal === 'undefined'){
    var modal = {};
    modal.init = false;
}
function modal_init(){
    // Fix "more videos" links not working
    $('#clips > li > a').click(function(){
        window.location = $(this).attr('href');
    });

    modal.init = true;
    // Close modal object
    modal.close = function(){
        if (modal.object){
            modal.object.fadeOut(200, function(){
                $(this).remove();
            });
            modal.object = null;
        }
    };

    // Get Fontawesome
    $('<link href="//maxcdn.bootstrapcdn.com/font-awesome/4.2.0/css/font-awesome.min.css" rel="stylesheet">').appendTo('body');

    // Modal styling
    $("<style>#tsf{line-height: 20px;position:fixed;top:0;right:0;bottom:0;left:0;z-index:1050;display:block;background-color:rgba(0,0,0,.5)}#tsf .dialogue{background-color:#292929;color:#eee;max-width:600px;min-height:200px;margin:0 auto;font-size:14px;position:relative;box-shadow:0 2px 6px rgba(0,0,0,.7)}#tsf .muted{color:#777;font-size:13px}#tsf a{color:#aaa;display:block}#tsf a:hover{color:#ccc}#tsf .close{position:absolute;top:0;right:0;margin:6px 8px;font-size:20px;cursor:pointer;color:#aaa}#tsf .close:hover{color:#ccc}#tsf .header{border-bottom:1px solid #444;font-size:20px;padding:8px}#tsf .content{padding:8px}#tsf a.btn{background-color:#333;border:1px solid #444;border-radius:2px;padding:7px 9px;display:inline-block;margin:3px;text-decoration:none}#tsf a.btn:hover{background-color:#393939;}#tsf *{transition:color .2s,background-color .2s;} #tsf .version{position:absolute;bottom:0;right:0;text-align:right;font-size:11px;color:#777;padding:3px 5px;}</style>").appendTo('body');

    // Create modal with header text and main content
    modal.open = function(header, content){
        // Close existing modal
        modal.close();

        var modal_html = "<div id='tsf'><div class='dialogue'><div class='close'><i class='fa fa-times'></i></div><div class='header'></div><div class='content'></div><div class='version'></div></div></div>";

        // Create modal object
        modal.object = $(modal_html);

        // Click event for closing modal
        modal.object.find('.close').click(modal.close);

        // Fill in content
        modal.object.find('.header').html(header);
        modal.object.find('.content').html(content);

        modal.object.find('.version').html(jq_config.info);

        // Append modal to page
        $('body').append(modal.object);

        // Show it
        modal.object.hide();
        modal.object.fadeIn(200);
        modal.object.find('.dialogue').animate({'margin-top': '30px'}, 200);
    };

    // Clicking on backdrop closes modal
    $(document).mouseup(function(e){
        if ($(e.target).is('#tsf')) modal.close();
    });
}

// Run script
jquery_ready(function(){
    if (!modal.init) modal_init();
    main();
});