Simple media download script
当前为
// ==UserScript==
// @name Inject2Download
// @namespace http://lkubuntu.wordpress.com/
// @version 0.2
// @description Simple media download script
// @author Anonymous Meerkat
// @include *
// @grant none
// @run-at document-start
// ==/UserScript==
(function() {
"use strict";
// Helper functions
function i2d_show_url(namespace, url, description) {
function get_absolute_url(url) {
var a = document.createElement('a');
a.href = url;
return a.href;
}
if (!description)
description = "";
if (typeof url !== "string" || url.replace("\s", "").length === 0)
return;
if (url.match(/^mediasource:/))
return;
url = get_absolute_url(url);
if (!("i2d_url_list" in window))
window.i2d_url_list = [];
for (var i = 0; i < i2d_url_list.length; i++) {
if (i2d_url_list[i][0] === namespace &&
i2d_url_list[i][1] === url &&
i2d_url_list[i][2] === description)
return;
}
i2d_url_list.push([namespace, url, description]);
var newurl = decodeURIComponent(url);
var text = "[" + namespace + "] " + description + ": ";
console.log("[i2d] " + text + newurl);
var el = document.getElementById("i2d-popup");
if (!el) {
el = document.createElement("div");
//el.style.position = "absolute";
el.style.width = "max(60%, 100em)";
el.style.height = "max(60%, 100em)";
el.style.maxWidth = "100%";
el.style.maxHeight = "100%";
el.style.background = "white";
el.style.top = "0px";
el.style.left = "0px";
el.style.zIndex = 999999;
el.style.color = "black";
el.style.overflow = "scroll";
el.ondblclick = function() {
el.parentElement.removeChild(el);
};
el.innerHTML = "Double click to close<br />";
el.id = "i2d-popup";
document.body.appendChild(el);
}
el.innerHTML += text + "<a href='" + newurl + "' style='color:blue'>" + newurl + "</a><br />";
// XXX: why is this needed? test: http://playbb.me/embed.php?w=718&h=438&vid=at/nw/flying_witch_-_01.mp4, animeplus.tv
document.body.removeChild(el);
el.style.position = "absolute";
document.body.appendChild(el);
}
// Injecting functions
var get_script_str = function(f) {
return f.toString().replace(/^function.*{|}$/g, '');
};
function add_script(s, el) {
var script_body = "(function() {\n" + s + "\n})();";
var myscript = document.createElement('script');
myscript.className = "i2d";
myscript.innerHTML = script_body;
if (el) {
el.appendChild(myscript);
} else {
document.head.appendChild(myscript);
}
}
function inject(variable, newvalue, aliases) {
console.log("[i2d] injecting " + variable);
if (!aliases)
aliases = [];
add_script(i2d_show_url.toString() + "\n" +
"if (!(window." + variable + ".INJECTED)) {\n" +
"var oldvariable = window." + variable + ";\n" +
"var oldvariable_keys = Object.keys(oldvariable);\n" +
"window." + variable + " = " + newvalue.toString() + ";\n" +
"for (var i = 0; i < oldvariable_keys.length; i++) {\n" +
" window." + variable + "[oldvariable_keys[i]] = oldvariable[oldvariable_keys[i]];\n" +
"}\n" +
"window." + variable + ".INJECTED = true;\n" +
"var aliases = " + JSON.stringify(aliases) + ";\n" +
"for (var i = 0; i < aliases.length; i++) {\n" +
" if (aliases[i] in window && window[aliases[i]] == oldvariable)" +
" window[aliases[i]] = window." + variable + "\n" +
"}\n" +
"}");
}
function inject_jquery_plugin(name, value) {
if (!("jQuery" in unsafeWindow) ||
!("fn" in unsafeWindow.jQuery) ||
!(name in unsafeWindow.jQuery.fn) ||
unsafeWindow.jQuery.fn[name].INJECTED)
return;
inject("jQuery.fn." + name, value);
}
// Main code
function i2d_main(e) {
if (e) {
if (!e.tagName || e.tagName.toLowerCase() !== "script")
return;
if ((e.className === "i2d")) {
return;
}
}
if ("soundManager" in unsafeWindow && !unsafeWindow.soundManager.INJECTED) {
inject("soundManager.createSound", function(arg1, arg2) {
if (typeof arg1 === "string")
i2d_show_url("soundManager", arg2);
else
i2d_show_url("soundManager", arg1.url);
return oldvariable.apply(this, arguments);
});
}
if ("jwplayer" in unsafeWindow && !unsafeWindow.jwplayer.INJECTED) {
inject("jwplayer", function() {
var result = oldvariable.apply(this, arguments);
var check_sources = function(x) {
if (typeof x === "object") {
if (x instanceof Array) {
for (var i = 0; i < x.length; i++) {
check_sources(x[i]);
}
return;
}
var label = "";
if ("title" in x)
label += "[" + x.title + "]";
if ("label" in x)
label += "[" + x.label + "]";
if ("streamer" in x) {
i2d_show_url("jwplayer", x.streamer, "[stream]" + label);
}
if ("file" in x) {
i2d_show_url("jwplayer", x.file, label);
}
if ("sources" in x) {
check_sources(x.sources);
}
if ("playlist" in x) {
check_sources(x.playlist);
}
} else if (typeof x === "string") {
i2d_show_url("jwplayer", x);
}
};
if ("setup" in result) {
var old_jwplayer_setup = result.setup;
result.setup = function() {
if (typeof arguments[0] === "object") {
var x = arguments[0];
if ("modes" in x) {
for (var i = 0; i < x.modes.length; i++) {
// TODO: support more?
if ("type" in x.modes[i] && x.modes[i].type === "html5") {
if ("config" in x.modes[i] && "file" in x.modes[i].config) {
check_sources(x.modes[i].config);
}
}
}
}
check_sources(x);
}
return old_jwplayer_setup.apply(this, arguments);
};
}
if ("load" in result) {
var old_jwplayer_load = result.load;
result.load = function() {
check_sources(arguments[0]);
return old_jwplayer_load.apply(this, arguments);
};
}
if ("on" in result) {
result.on('playlistItem', function(item) {
check_sources(item.item);
});
var old_jwplayer_on = result.on;
result.on = function() {
if (arguments[0] === "adBlock")
return;
return old_jwplayer_on.apply(this, arguments);
}
}
return result;
});
}
if ("flowplayer" in unsafeWindow && !unsafeWindow.flowplayer.INJECTED) {
inject("flowplayer", function() {
var obj_baseurl = null;
var els = [];
function get_url(x) {
x = decodeURIComponent(x);
if (obj_baseurl) {
if (x.match(/^[a-z]*:\/\//)) {
return x;
} else {
return obj_baseurl + "/" + x;
}
} else {
return x;
}
};
function check_sources(x, els, label) {
if (typeof x === "string") {
if (!x.match(/\.xml$/))
i2d_show_url("flowplayer", get_url(x), label);
return;
}
if (x instanceof Array) {
for (var i = 0; i < x.length; i++) {
check_sources(x[i], els, label);
}
return;
}
if (typeof x !== "object")
return;
label = "";
if ("title" in x)
label += "[" + x.title + "]";
if ("clip" in x) {
if ("baseUrl" in x.clip) {
obj_baseurl = x.clip.baseUrl;
for (var i = 0; i < els.length; i++) {
els[i].i2d_baseurl = obj_baseurl;
}
}
check_sources(x.clip, els, label);
}
if ("playlist" in x) {
check_sources(x.playlist, els, label);
}
if ("url" in x) {
check_sources(x.url, els, label);
}
if ("bitrates" in x) {
for (var j = 0; j < x.bitrates.length; j++) {
if ("url" in x.bitrates[j]) {
var description = "";
if (x.bitrates[j].isDefault)
description += "default:";
if (x.bitrates[j].sd)
description += "sd:";
if (x.bitrates[j].hd)
description += "hd:";
if (x.bitrates[j].bitrate)
description += x.bitrates[j].bitrate;
i2d_show_url("flowplayer", get_url(x.bitrates[j].url), description);
}
}
}
}
if (arguments.length >= 1) {
els = [null];
if (typeof arguments[0] === "string") {
try {
els[0] = document.getElementById(arguments[0]);
} catch(e) {
}
try {
if (!els[0])
els = document.querySelectorAll(arguments[0]);
} catch(e) {
els = [];
}
} else if (arguments[0] instanceof HTMLElement) {
els = [arguments[0]];
}
}
for (var i = 0; i < els.length; i++) {
if (!els[i] || !(els[i] instanceof HTMLElement))
continue;
if ("i2d_baseurl" in els[i])
obj_baseurl = els[i].i2d_baseurl;
}
if (arguments.length >= 3 && typeof arguments[2] === "object") {
check_sources(arguments[2], els);
} else if (arguments.length >= 3 && typeof arguments[2] === "string") {
i2d_show_url("flowplayer", get_url(arguments[2]));
}
for (var i = 0; i < els.length; i++) {
if (!els[i] || !(els[i] instanceof HTMLElement))
continue;
var href = els[i].getAttribute("href");
if (href) {
i2d_show_url("flowplayer", get_url(href), "href");
}
}
var result = oldvariable.apply(this, arguments);
if (!result)
return result;
if ("addClip" in result) {
var old_fplayer_addclip = result.addClip;
result.addClip = function() {
if (arguments.length > 0)
check_sources(arguments[0], els);
return old_fplayer_addclip.apply(this, arguments);
};
}
if ("setPlaylist" in result) {
var old_fplayer_setplaylist = result.setPlaylist;
result.setPlaylist = function() {
if (arguments.length > 0)
check_sources(arguments[0], els);
return old_fplayer_setplaylist.apply(this, arguments);
};
}
return result;
});
inject("$f", function() {return flowplayer.apply(this, arguments)});
}
if ("videojs" in unsafeWindow && !unsafeWindow.videojs.INJECTED) {
inject("videojs", function() {
if (arguments.length > 0 && typeof arguments[0] === "string") {
var my_el = document.getElementById(arguments[0]);
if (!my_el)
my_el = document.querySelector(arguments[0]);
if (my_el) {
if (my_el.src) {
i2d_show_url("videojs", my_el.src);
}
for (var i = 0; i < my_el.children.length; i++) {
if (my_el.children[i].tagName.toLowerCase() === "source") {
if (my_el.children[i].src) {
i2d_show_url("videojs", my_el.children[i].src, my_el.children[i].getAttribute("label"));
}
}
}
}
}
var result = oldvariable.apply(this, arguments);
var old_videojs_src = result.src;
result.src = function() {
if (arguments.length > 0 && typeof arguments[0] === "object") {
if ("src" in arguments[0]) {
i2d_show_url("videojs", arguments[0].src);
}
}
return old_videojs_src.apply(this, arguments);
};
return result;
});
add_script(i2d_show_url.toString() +
get_script_str(function() {
document.addEventListener("DOMContentLoaded", function() {
var els = document.getElementsByClassName("video-js");
for (var i = 0; i < els.length; i++) {
var my_el = els[i];
if (my_el.tagName.toLowerCase() === "video") {
if (!my_el.getAttribute('data-setup')) {
continue;
}
if (my_el.src) {
i2d_show_url("videojs", my_el.src);
}
for (var i = 0; i < my_el.children.length; i++) {
if (my_el.children[i].tagName.toLowerCase() === "source") {
if (my_el.children[i].src) {
i2d_show_url("videojs", my_el.children[i].src, my_el.children[i].getAttribute("label"));
}
}
}
}
}
});
}));
}
if ("amp" in unsafeWindow && !unsafeWindow.amp.INJECTED) {
inject("amp", function() {
function show_amp_source(sourceobj) {
if ("protectionInfo" in sourceobj) {
console.log("[amp] Cannot decode protection info");
}
if ("src" in sourceobj)
i2d_show_url("amp", sourceobj.src);
}
if (arguments.length >= 2 && typeof arguments[1] === "object") {
if ("sourceList" in arguments[1]) {
for (var i = 0; i < arguments[1].sourceList.length; i++) {
show_amp_source(arguments[1].sourceList[i]);
}
}
}
var result = oldvariable.apply(this, arguments);
if (!result)
return result;
var old_amp_src = result.src;
result.src = function() {
for (var i = 0; i < arguments[0].length; i++) {
show_amp_source(arguments[0][i]);
}
return old_amp_src.apply(this, arguments);
};
return result;
});
}
if (window.location.host.search("forvo") >= 0 && "createAudioObject" in unsafeWindow && !unsafeWindow.createAudioObject.INJECTED) {
inject("createAudioObject", function(id, mp3, ogg) {
i2d_show_url("forvo", mp3, "mp3");
i2d_show_url("forvo", ogg, "ogg");
return oldvariable.apply(this, arguments);
});
}
if ("jQuery" in unsafeWindow) {
inject_jquery_plugin("jPlayer", function() {
if (arguments.length > 0 && arguments[0] === "setMedia") {
if (arguments.length > 1) {
if (typeof arguments[1] === "object") {
for (var i in arguments[1]) {
if (i === "title" ||
i === "duration" ||
i === "track" /* for now */ ||
i === "artist" ||
i === "free")
continue;
i2d_show_url("jPlayer", arguments[1][i], i);
}
} else if (typeof arguments[1] === "string") {
i2d_show_url("jPlayer", arguments[1]);
}
}
}
return oldvariable.apply(this, arguments);
});
}
}
i2d_main();
window.addEventListener("afterscriptexecute", function(e) {
i2d_main(e.target);
});
document.addEventListener("DOMContentLoaded", function() {
var get_raws = function() {
var audios = [].slice.call(document.getElementsByTagName("audio"));
var videos = [].slice.call(document.getElementsByTagName("video"));
var els = Array.concat(audios, videos);
for (var i = 0; i < els.length; i++) {
var basename = "raw ";
var el = els[i];
if (el.tagName.toLowerCase() === "video") {
basename += "video";
} else {
basename += "audio";
}
if (el.id)
basename += ": #" + el.id;
var show_updates = function() {
if (el.src)
i2d_show_url(basename, el.src);
for (var x = 0; x < el.children.length; x++) {
if (els[i].children[x].tagName.toLowerCase() !== "source") {
continue;
}
var type = null;
if (el.children[x].type)
type = el.children[x].type;
if (el.children[x].src)
i2d_show_url(basename, el.children[x].src, type);
}
};
var observer = new MutationObserver(show_updates);
observer.observe(el, { attributes: true, childList: true });
show_updates();
}
};
add_script(i2d_show_url.toString() + "\n" +
"(" + get_raws.toString() + ")();");
});
})();