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通过 HTML5 多媒体功能播放帖子中上传的音视频附件。
// ==UserScript==
// @name 清水河畔音视频播放
// @namespace bbs.uestc.edu.cn
// @license MIT
// @author ____
// @version 0.4.0
// @description 通过 HTML5 多媒体功能播放帖子中上传的音视频附件。
// @match *://bbs.uestc.edu.cn/forum.php*
// @match *://bbs-uestc-edu-cn-s.vpn.uestc.edu.cn/forum.php*
// @connect b23.tv
// @connect bilibili.com
// @grant GM_xmlhttpRequest
// @run-at document-start
// ==/UserScript==
const createElement = HTMLDocument.prototype.createElement;
const setAttribute = Element.prototype.setAttribute;
function makeAvElement(src, kind) {
const MARGIN_TB = '0.5em';
let media = document.createElement(kind);
media.controls = true;
media.src = src;
media.style.maxWidth = '100%';
media.style.maxHeight = '80vh';
media.style.display = 'block';
media.style.margin = MARGIN_TB + (kind == 'audio' ? ' 0' : ' auto');
return media;
}
function makeAv(container, a, kind) {
a.outerHTML = makeAvElement(a.href, kind).outerHTML;
let outer = container.querySelector('dl.tattl');
if (outer) {
outer.style.width = 'auto';
outer.style.height = 'auto';
}
let outer2 = container.querySelector('p.attnm');
if (outer2) {
outer2.style.height = 'auto';
}
let icon = container.querySelector('dl.tattl > dt');
if (icon) {
icon.style.display = 'none';
}
}
function getRedirectUrl(url) {
return new Promise(resolve => {
if (window.GM_xmlhttpRequest) {
GM_xmlhttpRequest({
method: 'HEAD',
url,
onload: r => resolve(r.finalUrl),
})
} else {
chrome.runtime.sendMessage({request: 'getRedirectUrl', url}).then(r => r && r.url && resolve(r.url));
}
});
}
function createIframe(src, extra) {
let isPc = !!document.querySelector('#postlist');
let el = createElement.call(document, 'iframe');
el.style.display = 'block';
el.style.width = isPc ? '80%' : '100%';
el.style.aspectRatio = '16 / 9'
el.style.margin = '0.5em auto';
el.allowFullscreen = true;
if (extra && extra.allow) {
el.allow = extra.allow;
}
setAttribute.call(el, 'src', src);
return el;
}
function makeBvPlayer(bv) {
return createIframe(`https://player.bilibili.com/player.html?bvid=${encodeURIComponent(bv)}`);
}
function makeBilibiliLivePlayer(id) {
return createIframe(`https://www.bilibili.com/blackboard/live/live-activity-player.html?cid=${id}&quality=0`, {
allow: 'encrypted-media',
});
}
function handleBilibiliLive(id) {
const url = `https://live.bilibili.com/${id}`;
return new Promise(resolve => {
function handleResponse2(json) {
debugger
if (!json || !json.data || !json.data.by_room_ids) {
resolve(makeBilibiliLivePlayer(id));
return;
}
for (const [room_id, details] of Object.entries(json.data.by_room_ids)) {
if (details && details.short_id == id) {
resolve(makeBilibiliLivePlayer(details.room_id || room_id))
return;
}
}
resolve(makeBilibiliLivePlayer(id));
}
function handleResponse(text) {
const match = text.match(/__NEPTUNE_IS_MY_WAIFU__.*?"room_id":([1-9]\d*)/);
if (match) {
resolve(makeBilibiliLivePlayer(match[1]));
return;
}
// Handle special competition live.
const match2 = text.match(/window\.__initialState\s*=\s*(.*)/);
if (match2) {
let json = match2[1];
if (json[json.length - 1] == ';') {
json = json.substring(0, json.length - 1);
}
try {
json = JSON.parse(json)['live-non-revenue-player'][0].roomsConfig.map(room => room.roomId.substring(0));
} catch (_) {
resolve(makeBilibiliLivePlayer(id));
return;
}
if (window.GM_xmlhttpRequest) {
GM_xmlhttpRequest({
method: 'GET',
url: `https://api.live.bilibili.com/xlive/web-room/v1/index/getRoomBaseInfo?${json.map(id => 'room_ids=' + encodeURIComponent(id)).join('&')}&req_biz=web_room_componet`,
onload: r => {
let json;
try {
json = JSON.parse(r.responseText);
} catch (_) {
resolve(makeBilibiliLivePlayer(id));
return;
}
handleResponse2(json);
},
onerror: _ => handleResponse2(),
});
} else {
chrome.runtime.sendMessage({request: 'bilibiliGetRoomsInfo', roomIds: json}).then(json => handleResponse2(json));
}
} else {
resolve(makeBilibiliLivePlayer(id));
}
}
if (window.GM_xmlhttpRequest) {
GM_xmlhttpRequest({
method: 'GET',
url,
onload: r => handleResponse(r.responseText),
onerror: _ => handleResponse(''),
});
} else {
chrome.runtime.sendMessage({request: 'getUrl', url}).then(r => handleResponse(r ? r.responseText : ''));
}
});
}
const externalAvHandlers = [
{
regex: /https?:\/\/(?:b23\.tv|b23-tv-s\.vpn\.uestc\.edu\.cn(?::8118)?)\/([^/?]+)/i,
handler: (url, match) => getRedirectUrl(`https://b23.tv/${match[1]}`).then(url => matchHandlers(url)),
},
{
regex: /https?:\/\/(?:www|m)(?:\.bilibili\.com|-bilibili-com-s\.vpn\.uestc\.edu\.cn(?::8118)?)\/video\/(BV[^/?]+)/i,
handler: (url, match) => Promise.resolve(makeBvPlayer(match[1])),
},
{
regex: /https?:\/\/(?:live\.bilibili\.com|live-bilibili-com-s\.vpn\.uestc\.edu\.cn(?::8118)?)\/([0-9]+)/i,
handler: (_, match) => handleBilibiliLive(match[1]),
},
];
function matchHandlers(url, extra) {
for (let {regex, handler} of externalAvHandlers) {
let match = url.match(regex);
if (match) {
return handler(url, match);
}
}
return Promise.reject();
}
document.addEventListener('DOMContentLoaded', _ => {
[].forEach.call(document.querySelectorAll('#postlist ignore_js_op, .postlist .plc.cl .box.attach, .wp .vt .pbody .box.attach'), el => {
let a = el.querySelector('a');
if (a.href.match(/https?:\/\/.*?forum\.php\?mod=attachment&/)) {
let fileName = a.textContent.trim();
if (fileName.match(/\.(?:mp4|flv)/i)) {
makeAv(el, a, 'video');
} else if (fileName.match(/\.(?:mp3)/i)) {
makeAv(el, a, 'audio');
}
}
});
[].forEach.call(document.querySelectorAll('#postlist embed'), embed => {
const flashvars = embed.getAttribute('flashvars');
if (flashvars) {
const match = flashvars.match(/^soundFile=([^&]+)/);
if (match) {
embed.outerHTML = makeAvElement(decodeURIComponent(match[1]), 'audio').outerHTML;
}
}
});
[].forEach.call(document.querySelectorAll('#postlist table.plhin .t_fsz table a, .postlist .plc.cl .message a, .wp .vt .bm .pbody .postmessage a'), a => {
matchHandlers(a.href).then(el => {
let e = a.insertAdjacentElement('afterend', document.createElement('br'));
e = e.insertAdjacentElement('afterend', el);
e = e.insertAdjacentElement('afterend', document.createElement('br'));
});
});
});