利用酷安的客户端 API，在无须扫码打开的情况下预览酷安网 Feed 的信息
// ==UserScript==
// @name 酷安 Feed 阅读
// @namespace https://coolapk.com/
// @version 0.1.1
// @description 利用酷安的客户端 API，在无须扫码打开的情况下预览酷安网 Feed 的信息
// @author duangsuse
// @include /http(s?):\/\/www.coolapk.com\/feed\/(\d+)/
// @match https://www.coolapk.com/feed/*
// @grant none
// ==/UserScript==
function currentTimeTms() { return new Date().getTime(); }
function checkFunDep(value, message) {
if (typeof value !='function')
throw Error(message);
}
function findFirstParent(elem, predicate) {
var eln = elem.parentNode;
do {
if (predicate(eln))
return eln;
eln = eln.parentNode;
} while (eln != null);
}
// from https://jsfiddle.net/briguy37/2MVFd/
function uuidgen() {
var tms = currentTimeTms();
return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function(c) {
var r = (tms + Math.random() * 16) %16 | 0;
tms = Math.floor(tms /16);
return (c=='x' ? r : (r & 0x3 | 0x8)).toString(16);
});
}
// Begin coolToken
function hex(x) {return '0x' + x.toString(16);}
function timestampMd5(ts) {
checkFunDep(digest, 'MD5 digest algorithm not found');
var repr = String(ts);
return digest(repr);
}
function coolToken(_base, appId, uuid, time) {
checkFunDep(digest, 'MD5 digest algorithm not found');
var base = _base || 'token://com.coolapk.market/c67ef5943784d09750dcfbb31020f0ab?';
var aid = appId || 'com.coolapk.market';
var uuidstr = uuid || '00000000-0000-0000-0000-000000000000';
var tms = time || Math.floor(currentTimeTms() /1000);
var salt = base + timestampMd5(tms) + "$" + uuidstr + "&" + aid;
var saltbase64 = btoa(salt);
var saltb64md5 = digest(saltbase64);
var hextime = hex(tms);
return saltb64md5 + uuidstr + hextime;
}
// End coolToken
function xmlhttp(url, asyncb, method) {
var req = new XMLHttpRequest();
req.open(method || 'GET', url, asyncb !=null);
req.onreadystatechange = function (st) {
if (req.readyState == XMLHttpRequest.DONE)
asyncb(req);
};
return req;
}
function setheaders(xmlreq, hdrs) {
hdrs.forEach(function (kv) {
xmlreq.setRequestHeader(kv[0], kv[1]);
});
}
function to_a(dom) {
var result = [];
for (var xi in Object.keys(dom))
result.push(dom[xi]);
return result;
}
cool = {
detail: function(id) {return 'https://api.coolapk.com/v6/feed/detail?id='+id;}
};
function concat(xs, sep) {
var seprator = sep || '';
var result = [];
xs.forEach(function (x) { result.push(x); });
return result.join(seprator);
}
/**
* CoolApk Feed render
* [title](abbr: info + entityId + length)(href: shareUrl) [share_num]{!=0} [signature] [isXXX]
* [userInfo]
* <img>[message_cover]</img>
* Keywords: [message_keywords]
* [tags]
* <quote>[message_brief]</quote>
* [message]
* [picArr]
* [dateline] [lastupdate]
* [device_title] (abbr: device_name) [device_rom] [fromname](abbr: fromid)
*
* [likenum] / [burynum] / [rank_score]
* [recent_like_list]
* [userLikeList]
*
* [recent_hot_reply_ids] [commentnum](abbr: replynum, comment_block_num)
* [hotReplyRows]
*
* ~> [recent_reply_ids]
*/
var _ = ' ';
function feedRender(model) {
//console.log(model.message);
var mesg = document.createElement('p');
mesg.id = model.entityId;
mesg.innerHTML = (model.message || '未知消息');
var title = document.createElement('h2');
var titleabbr = document.createElement('abbr');
titleabbr.innerText = model.title || '未知标题';
titleabbr.title = concat([model.info, _, model.entityId, _, '长度=', model.message_length, ' @次数=', model.at_count]);
title.appendChild(titleabbr);
var share = document.createElement('a');
share.href = model.shareUrl;
share.innerText = model.share_num ==0? '分享' : model.share_num+' 次外链';
var widget = document.createElement('div');
[title, share, mesg].forEach(function (x) {widget.appendChild(x);});
//console.log(widget);
return widget;
}
/**
* CoolApk User model render
* | [displayUsername]{username != displayUsername} '('[username]')' (href: url) (abbr: level + groupid + uid + status) [admintype]
* [userAvatar] (src: userAvatar, href: userBigAvatar) | []
* | [logintime] [regdate]
*/
function userRender(model) {}
function render(trans, destview) {
if (trans.status !=200) {
alert(":( Sorry, request to CoolApk API failed with response code " + trans.status + " and body " + trans.response);
}
var model = JSON.parse(trans.response);
var data = model.data;
console.log(data);
//console.log(destview);
destview.appendChild(feedRender(data));
}
function rewrites(container) {
//alert('rewrite!');
try {
to_a(container.children).forEach(function (child) {container.removeChild(child);});
var currenttok = coolToken();
//console.log(currenttok);
var feedid = /coolapk.com\/feed\/(\d+)$/.exec(document.location)[1];
//console.log(feedid);
var req = xmlhttp(cool.detail(feedid), function(t){render(t, container);});
var headers = [
['X-Requested-With', XMLHttpRequest.name],
['X-Sdk-Int', 25],
['X-Sdk-Locale', 'zh-CN'],
['X-App-Id', 'com.coolapk.market'],
['X-App-Version', '9.0.2'],
['X-App-Code', 1902151],
['X-App-Token', coolToken()]
];
setheaders(req, headers);
req.send(null);
} catch (e) { container.appendChild(document.createTextNode(e +'@'+ e.lineNumber)); }
}
function main() {
var dbtn = document.querySelector('.download_button');
//dbtn.innerHTML = 'GO';
var container = findFirstParent(dbtn, function (e) {return /*e.style.textAlign ==='center'*/ e.classList.contains('msg_box');});
var dbtnc = findFirstParent(dbtn, function (e) {return e.tagName ==='DIV';});
var btntext = document.createTextNode('Preview Feed');
var rewrite = document.createElement('a');
rewrite.classList.add('header-developer');
var btx = document.createElement('span');
btx.appendChild(btntext);
rewrite.appendChild(btx);
container.appendChild(document.createElement('br'));
container.appendChild(rewrite);
rewrite.onclick = function(){rewrites(container);};
}
//document.addEventListener('DOMContentLoaded', main);
main();
/// Dependency https://github.com/solderjs/jsMD5
function digestn(M) {
var originalLength, i, j, k, l, A, B, C, D, AA, BB, CC, DD, X, rval;
function F(x, y, z) {
return (x & y) | (~x & z);
}
function G(x, y, z) {
return (x & z) | (y & ~z);
}
function H(x, y, z) {
return x ^ y ^ z;
}
function I(x, y, z) {
return y ^ (x | ~z);
}
function to4bytes(n) {
return [n & 0xff, (n >>> 8) & 0xff, (n >>> 16) & 0xff, (n >>> 24) & 0xff];
}
originalLength = M.length; // for Step.2
// 3.1 Step 1. Append Padding Bits
M.push(0x80);
l = (56 - M.length) & 0x3f;
for (i = 0; i < l; i++)
M.push(0);
// 3.2 Step 2. Append Length
to4bytes(8 * originalLength).forEach(function (e) {
M.push(e);
});
[0, 0, 0, 0].forEach(function (e) {
M.push(e);
});
// 3.3 Step 3. Initialize MD Buffer
A = [0x67452301];
B = [0xefcdab89];
C = [0x98badcfe];
D = [0x10325476];
// 3.4 Step 4. Process Message in 16-Word Blocks
function rounds(a, b, c, d, k, s, t, f) {
a[0] += f(b[0], c[0], d[0]) + X[k] + t;
a[0] = ((a[0] << s) | (a[0] >>> (32 - s)));
a[0] += b[0];
}
for (i = 0; i < M.length; i += 64) {
X = [];
for (j = 0; j < 64; j += 4) {
k = i + j;
X.push(M[k] | (M[k + 1] << 8) | (M[k + 2] << 16) | (M[k + 3] << 24));
}
AA = A[0];
BB = B[0];
CC = C[0];
DD = D[0];
// Round 1.
rounds(A, B, C, D, 0, 7, 0xd76aa478, F);
rounds(D, A, B, C, 1, 12, 0xe8c7b756, F);
rounds(C, D, A, B, 2, 17, 0x242070db, F);
rounds(B, C, D, A, 3, 22, 0xc1bdceee, F);
rounds(A, B, C, D, 4, 7, 0xf57c0faf, F);
rounds(D, A, B, C, 5, 12, 0x4787c62a, F);
rounds(C, D, A, B, 6, 17, 0xa8304613, F);
rounds(B, C, D, A, 7, 22, 0xfd469501, F);
rounds(A, B, C, D, 8, 7, 0x698098d8, F);
rounds(D, A, B, C, 9, 12, 0x8b44f7af, F);
rounds(C, D, A, B, 10, 17, 0xffff5bb1, F);
rounds(B, C, D, A, 11, 22, 0x895cd7be, F);
rounds(A, B, C, D, 12, 7, 0x6b901122, F);
rounds(D, A, B, C, 13, 12, 0xfd987193, F);
rounds(C, D, A, B, 14, 17, 0xa679438e, F);
rounds(B, C, D, A, 15, 22, 0x49b40821, F);
// Round 2.
rounds(A, B, C, D, 1, 5, 0xf61e2562, G);
rounds(D, A, B, C, 6, 9, 0xc040b340, G);
rounds(C, D, A, B, 11, 14, 0x265e5a51, G);
rounds(B, C, D, A, 0, 20, 0xe9b6c7aa, G);
rounds(A, B, C, D, 5, 5, 0xd62f105d, G);
rounds(D, A, B, C, 10, 9, 0x02441453, G);
rounds(C, D, A, B, 15, 14, 0xd8a1e681, G);
rounds(B, C, D, A, 4, 20, 0xe7d3fbc8, G);
rounds(A, B, C, D, 9, 5, 0x21e1cde6, G);
rounds(D, A, B, C, 14, 9, 0xc33707d6, G);
rounds(C, D, A, B, 3, 14, 0xf4d50d87, G);
rounds(B, C, D, A, 8, 20, 0x455a14ed, G);
rounds(A, B, C, D, 13, 5, 0xa9e3e905, G);
rounds(D, A, B, C, 2, 9, 0xfcefa3f8, G);
rounds(C, D, A, B, 7, 14, 0x676f02d9, G);
rounds(B, C, D, A, 12, 20, 0x8d2a4c8a, G);
// Round 3.
rounds(A, B, C, D, 5, 4, 0xfffa3942, H);
rounds(D, A, B, C, 8, 11, 0x8771f681, H);
rounds(C, D, A, B, 11, 16, 0x6d9d6122, H);
rounds(B, C, D, A, 14, 23, 0xfde5380c, H);
rounds(A, B, C, D, 1, 4, 0xa4beea44, H);
rounds(D, A, B, C, 4, 11, 0x4bdecfa9, H);
rounds(C, D, A, B, 7, 16, 0xf6bb4b60, H);
rounds(B, C, D, A, 10, 23, 0xbebfbc70, H);
rounds(A, B, C, D, 13, 4, 0x289b7ec6, H);
rounds(D, A, B, C, 0, 11, 0xeaa127fa, H);
rounds(C, D, A, B, 3, 16, 0xd4ef3085, H);
rounds(B, C, D, A, 6, 23, 0x04881d05, H);
rounds(A, B, C, D, 9, 4, 0xd9d4d039, H);
rounds(D, A, B, C, 12, 11, 0xe6db99e5, H);
rounds(C, D, A, B, 15, 16, 0x1fa27cf8, H);
rounds(B, C, D, A, 2, 23, 0xc4ac5665, H);
// Round 4.
rounds(A, B, C, D, 0, 6, 0xf4292244, I);
rounds(D, A, B, C, 7, 10, 0x432aff97, I);
rounds(C, D, A, B, 14, 15, 0xab9423a7, I);
rounds(B, C, D, A, 5, 21, 0xfc93a039, I);
rounds(A, B, C, D, 12, 6, 0x655b59c3, I);
rounds(D, A, B, C, 3, 10, 0x8f0ccc92, I);
rounds(C, D, A, B, 10, 15, 0xffeff47d, I);
rounds(B, C, D, A, 1, 21, 0x85845dd1, I);
rounds(A, B, C, D, 8, 6, 0x6fa87e4f, I);
rounds(D, A, B, C, 15, 10, 0xfe2ce6e0, I);
rounds(C, D, A, B, 6, 15, 0xa3014314, I);
rounds(B, C, D, A, 13, 21, 0x4e0811a1, I);
rounds(A, B, C, D, 4, 6, 0xf7537e82, I);
rounds(D, A, B, C, 11, 10, 0xbd3af235, I);
rounds(C, D, A, B, 2, 15, 0x2ad7d2bb, I);
rounds(B, C, D, A, 9, 21, 0xeb86d391, I);
A[0] += AA;
B[0] += BB;
C[0] += CC;
D[0] += DD;
}
rval = [];
to4bytes(A[0]).forEach(function (e) {
rval.push(e);
});
to4bytes(B[0]).forEach(function (e) {
rval.push(e);
});
to4bytes(C[0]).forEach(function (e) {
rval.push(e);
});
to4bytes(D[0]).forEach(function (e) {
rval.push(e);
});
return rval;
}
function digest(s) {
var M = [],
i, d, rstr, s;
for (i = 0; i < s.length; i++)
M.push(s.charCodeAt(i));
d = digestn(M);
rstr = '';
d.forEach(function (e) {
s = e.toString(16);
while (s.length < 2)
s = '0' + s;
rstr += s;
});
return rstr;
}