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perf: Add support for sending http requests using specific nodes

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Only supported on Loon & Surge
This commit is contained in:
Peng-YM 2022-08-11 01:07:16 +08:00
parent e93332048e
commit c073870f24
5 changed files with 256 additions and 2 deletions
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3
backend/package.json
View File

@ -1,6 +1,6 @@
{
"name": "sub-store",
"version": "2.12.4",
"version": "2.12.5",
"description": "Advanced Subscription Manager for QX, Loon, Surge, Stash and ShadowRocket.",
"main": "src/main.js",
"scripts": {
@ -19,6 +19,7 @@
"js-base64": "^3.7.2",
"lodash": "^4.17.21",
"request": "^2.88.2",
"requests": "^0.3.0",
"semver": "^7.3.7",
"static-js-yaml": "^1.0.0",
"uuid": "^8.3.2"

87
backend/pnpm-lock.yaml generated
View File

@ -31,6 +31,7 @@ specifiers:
prettier: 2.6.2
prettier-plugin-sort-imports: ^1.6.1
request: ^2.88.2
requests: ^0.3.0
semver: ^7.3.7
static-js-yaml: ^1.0.0
tinyify: ^3.0.0
@ -43,6 +44,7 @@ dependencies:
js-base64: registry.npmmirror.com/js-base64/3.7.2
lodash: registry.npmmirror.com/lodash/4.17.21
request: registry.npmmirror.com/request/2.88.2
requests: registry.npmmirror.com/requests/0.3.0
semver: registry.npmmirror.com/semver/7.3.7
static-js-yaml: registry.npmmirror.com/static-js-yaml/1.0.0
uuid: registry.npmmirror.com/uuid/8.3.2
@ -2250,6 +2252,12 @@ packages:
follow-redirects: registry.npmmirror.com/follow-redirects/1.13.0
dev: true
registry.npmmirror.com/axo/0.0.2:
resolution: {integrity: sha512-8CC4Mb+OhK97UEng0PgiqUDNZjzVcWDsV+G2vLYCQn1jEL7y6VqiRVlZlRu+aA/ckSznmNzW6X1I6nj2As/haQ==, registry: http://registry.npm.taobao.org/, tarball: https://registry.npmmirror.com/axo/-/axo-0.0.2.tgz}
name: axo
version: 0.0.2
dev: false
registry.npmmirror.com/babel-plugin-dynamic-import-node/2.3.3:
resolution: {integrity: sha512-jZVI+s9Zg3IqA/kdi0i6UDCybUI3aSBLnglhYbSSjKlV7yF1F/5LWv8MakQmvYpnbJDS6fcBL2KzHSxNCMtWSQ==, registry: http://registry.npm.taobao.org/, tarball: https://registry.npmmirror.com/babel-plugin-dynamic-import-node/-/babel-plugin-dynamic-import-node-2.3.3.tgz}
name: babel-plugin-dynamic-import-node
@ -4296,6 +4304,12 @@ packages:
es5-ext: registry.npmmirror.com/es5-ext/0.10.61
dev: true
registry.npmmirror.com/eventemitter3/4.0.7:
resolution: {integrity: sha512-8guHBZCwKnFhYdHr2ysuRWErTwhoN2X8XELRlrRwpmfeY2jjuUN4taQMsULKUVo1K4DvZl+0pgfyoysHxvmvEw==, registry: http://registry.npm.taobao.org/, tarball: https://registry.npmmirror.com/eventemitter3/-/eventemitter3-4.0.7.tgz}
name: eventemitter3
version: 4.0.7
dev: false
registry.npmmirror.com/events/3.3.0:
resolution: {integrity: sha512-mQw+2fkQbALzQ7V0MY0IqdnXNOeTtP4r0lN9z7AAawCXgqea7bDii20AYrIBrFd/Hx0M2Ocz6S111CaFkUcb0Q==, registry: http://registry.npm.taobao.org/, tarball: https://registry.npmmirror.com/events/-/events-3.3.0.tgz}
name: events
@ -4410,6 +4424,12 @@ packages:
name: extend
version: 3.0.2
registry.npmmirror.com/extendible/0.1.1:
resolution: {integrity: sha512-AglckQA0TJV8/ZmhQcNmaaFcFFPXFIoZbfuoQOlGDK7Jh/roWotYzJ7ik1FBBCHBr8n7CgTR8lXXPAN8Rfb7rw==, registry: http://registry.npm.taobao.org/, tarball: https://registry.npmmirror.com/extendible/-/extendible-0.1.1.tgz}
name: extendible
version: 0.1.1
dev: false
registry.npmmirror.com/extglob/2.0.4:
resolution: {integrity: sha512-Nmb6QXkELsuBr24CJSkilo6UHHgbekK5UiZgfE6UHD3Eb27YC6oD+bhcT+tJ6cl8dmsgdQxnWlcry8ksBIBLpw==, registry: http://registry.npm.taobao.org/, tarball: https://registry.npmmirror.com/extglob/-/extglob-2.0.4.tgz}
name: extglob
@ -4435,6 +4455,12 @@ packages:
engines: {'0': node >=0.6.0}
dev: false
registry.npmmirror.com/failure/1.1.1:
resolution: {integrity: sha512-lzrrk0NUfjVeU3jLmfU01zP5bfg4XVFxHREYGvgJowaCqHLSQtqIGENH/CU+oSs6yfYObdSM7b9UY/3p2VJOSg==, registry: http://registry.npm.taobao.org/, tarball: https://registry.npmmirror.com/failure/-/failure-1.1.1.tgz}
name: failure
version: 1.1.1
dev: false
registry.npmmirror.com/falafel/2.2.5:
resolution: {integrity: sha512-HuC1qF9iTnHDnML9YZAdCDQwT0yKl/U55K4XSUXqGAA2GLoafFgWRqdAbhWJxXaYD4pyoVxAJ8wH670jMpI9DQ==, registry: http://registry.npm.taobao.org/, tarball: https://registry.npmmirror.com/falafel/-/falafel-2.2.5.tgz}
name: falafel
@ -5219,6 +5245,12 @@ packages:
glogg: registry.npmmirror.com/glogg/1.0.2
dev: true
registry.npmmirror.com/hang/1.0.0:
resolution: {integrity: sha512-vtBz98Bt/Tbm03cZO5Ymc7ZL8ead/jIx9T5Wg/xuz+9BXPAJNJSdGQW63LoaesogUQKTpHyal339hxTaTf/APg==, registry: http://registry.npm.taobao.org/, tarball: https://registry.npmmirror.com/hang/-/hang-1.0.0.tgz}
name: hang
version: 1.0.0
dev: false
registry.npmmirror.com/har-schema/2.0.0:
resolution: {integrity: sha512-Oqluz6zhGX8cyRaTQlFMPw80bSJVG2x/cFb8ZPhUILGgHka9SsokCCOQgpveePerqidZOrT14ipqfJb7ILcW5Q==, registry: http://registry.npm.taobao.org/, tarball: https://registry.npmmirror.com/har-schema/-/har-schema-2.0.0.tgz}
name: har-schema
@ -6336,6 +6368,17 @@ packages:
strip-bom: registry.npmmirror.com/strip-bom/2.0.0
dev: true
registry.npmmirror.com/loads/0.0.4:
resolution: {integrity: sha512-XjPzzYIHkuMNqYyvh6AECQAHi682nyKO9TMdMYnaz7QbPDI/KIeSIjRhAlXIbRMPYAgtLUYgPlD3mtKZ4Q8SYA==, registry: http://registry.npm.taobao.org/, tarball: https://registry.npmmirror.com/loads/-/loads-0.0.4.tgz}
name: loads
version: 0.0.4
dependencies:
failure: registry.npmmirror.com/failure/1.1.1
one-time: registry.npmmirror.com/one-time/0.0.4
xhr-response: registry.npmmirror.com/xhr-response/1.0.1
xhr-status: registry.npmmirror.com/xhr-status/1.0.1
dev: false
registry.npmmirror.com/locate-path/3.0.0:
resolution: {integrity: sha512-7AO748wWnIhNqAuaty2ZWHkQHRSNfPVIsPIfwEOWO22AmaoVrWavlOcMR5nzTLNYvp36X220/maaRsrec1G65A==, registry: http://registry.npm.taobao.org/, tarball: https://registry.npmmirror.com/locate-path/-/locate-path-3.0.0.tgz}
name: locate-path
@ -6876,6 +6919,12 @@ packages:
semver: registry.npmmirror.com/semver/5.7.1
dev: true
registry.npmmirror.com/node-http-xhr/1.3.4:
resolution: {integrity: sha512-0bA08/2RKWxw6pMkOVd3KP+0F5+ifQLMMTDxrCgxlgkoU1N8DhCbCSAYEqpgaVYM2smvbVVewiXjW+8AyoLfxQ==, registry: http://registry.npm.taobao.org/, tarball: https://registry.npmmirror.com/node-http-xhr/-/node-http-xhr-1.3.4.tgz}
name: node-http-xhr
version: 1.3.4
dev: false
registry.npmmirror.com/node-releases/2.0.4:
resolution: {integrity: sha512-gbMzqQtTtDz/00jQzZ21PQzdI9PyLYqUSvD0p3naOhX4odFji0ZxYdnVwPTxmSwkmxhcFImpozceidSG+AgoPQ==, registry: http://registry.npm.taobao.org/, tarball: https://registry.npmmirror.com/node-releases/-/node-releases-2.0.4.tgz}
name: node-releases
@ -7110,6 +7159,12 @@ packages:
wrappy: registry.npmmirror.com/wrappy/1.0.2
dev: true
registry.npmmirror.com/one-time/0.0.4:
resolution: {integrity: sha512-qAMrwuk2xLEutlASoiPiAMW3EN3K96Ka/ilSXYr6qR1zSVXw2j7+yDSqGTC4T9apfLYxM3tLLjKvgPdAUK7kYQ==, registry: http://registry.npm.taobao.org/, tarball: https://registry.npmmirror.com/one-time/-/one-time-0.0.4.tgz}
name: one-time
version: 0.0.4
dev: false
registry.npmmirror.com/optionator/0.8.3:
resolution: {integrity: sha512-+IW9pACdk3XWmmTXG8m3upGUJst5XRGzxMRjXzAuJ1XnIFNvfhjjIuYkDvysnPQ7qzqVzLt78BCruntqRhWQbA==, registry: http://registry.npm.taobao.org/, tarball: https://registry.npmmirror.com/optionator/-/optionator-0.8.3.tgz}
name: optionator
@ -8057,6 +8112,20 @@ packages:
uuid: registry.npmmirror.com/uuid/3.4.0
dev: false
registry.npmmirror.com/requests/0.3.0:
resolution: {integrity: sha512-1B6nkiHjC1O1cSgFhEwkc+xd8vuj04h7xSmCg5yI8nmhCIKbPkX47od8erQ2pokBt5qxUO7dwP4jplXD6k6ISA==, registry: http://registry.npm.taobao.org/, tarball: https://registry.npmmirror.com/requests/-/requests-0.3.0.tgz}
name: requests
version: 0.3.0
dependencies:
axo: registry.npmmirror.com/axo/0.0.2
eventemitter3: registry.npmmirror.com/eventemitter3/4.0.7
extendible: registry.npmmirror.com/extendible/0.1.1
hang: registry.npmmirror.com/hang/1.0.0
loads: registry.npmmirror.com/loads/0.0.4
node-http-xhr: registry.npmmirror.com/node-http-xhr/1.3.4
xhr-send: registry.npmmirror.com/xhr-send/1.0.0
dev: false
registry.npmmirror.com/require-directory/2.1.1:
resolution: {integrity: sha512-fGxEI7+wsG9xrvdjsrlmL22OMTTiHRwAMroiEeMgq8gzoLC/PQr7RsRDSTLUg/bZAZtF+TVIkHc6/4RIKrui+Q==, registry: http://registry.npm.taobao.org/, tarball: https://registry.npmmirror.com/require-directory/-/require-directory-2.1.1.tgz}
name: require-directory
@ -9731,6 +9800,24 @@ packages:
engines: {node: '>=8'}
dev: true
registry.npmmirror.com/xhr-response/1.0.1:
resolution: {integrity: sha512-m2FlVRCl3VqDcpc8UaWZJpwuHpFR2vYeXv6ipXU2Uuu4vNKFYVEFI0emuJN370Fge+JCbiAnS+JJmSoWVmWrjQ==, registry: http://registry.npm.taobao.org/, tarball: https://registry.npmmirror.com/xhr-response/-/xhr-response-1.0.1.tgz}
name: xhr-response
version: 1.0.1
dev: false
registry.npmmirror.com/xhr-send/1.0.0:
resolution: {integrity: sha512-789EG4qW6Z0nPvG74AV3WWQCnBG5HxJXNiBsnEivZ8OpbvVA0amH0+g+MNT99o5kt/XLdRezm5KS1wJzcGJztw==, registry: http://registry.npm.taobao.org/, tarball: https://registry.npmmirror.com/xhr-send/-/xhr-send-1.0.0.tgz}
name: xhr-send
version: 1.0.0
dev: false
registry.npmmirror.com/xhr-status/1.0.1:
resolution: {integrity: sha512-VF0WSqtmkf56OmF26LCWsWvRb1a+WYGdHDoQnPPCVUQTM8CVUAOBcUDsm7nP7SQcgEEdrvF4DmhEADuXdGieyw==, registry: http://registry.npm.taobao.org/, tarball: https://registry.npmmirror.com/xhr-status/-/xhr-status-1.0.1.tgz}
name: xhr-status
version: 1.0.1
dev: false
registry.npmmirror.com/xtend/2.1.2:
resolution: {integrity: sha512-vMNKzr2rHP9Dp/e1NQFnLQlwlhp9L/LfvnsVdHxN1f+uggyVI3i08uD14GPvCToPkdsRfyPqIyYGmIk58V98ZQ==, registry: http://registry.npm.taobao.org/, tarball: https://registry.npmmirror.com/xtend/-/xtend-2.1.2.tgz}
name: xtend

6
backend/src/core/proxy-utils/processors/index.js
View File

@ -5,6 +5,7 @@ import { getFlag } from '@/utils/geo';
import lodash from 'lodash';
import $ from '@/core/app';
import { hex_md5 } from '@/vendor/md5';
import {ProxyUtils} from '@/core/proxy-utils';
/**
The rule "(name CONTAINS "🇨🇳") AND (port IN [80, 443])" can be expressed as follows:
@ -631,6 +632,7 @@ function createDynamicFunction(name, script, $arguments) {
'$persistentStore',
'$httpClient',
'$notification',
'ProxyUtils',
`${script}\n return ${name}`,
)(
$arguments,
@ -642,13 +644,15 @@ function createDynamicFunction(name, script, $arguments) {
$httpClient,
// eslint-disable-next-line no-undef
$notification,
ProxyUtils
);
} else {
return new Function(
'$arguments',
'$substore',
'lodash',
'ProxyUtils',
`${script}\n return ${name}`,
)($arguments, $, lodash);
)($arguments, $, lodash, ProxyUtils);
}
}

11
backend/src/vendor/open-api.js vendored
View File

@ -253,6 +253,17 @@ export function HTTP(defaultOptions = { baseURL: '' }) {
events.onRequest(method, options);
if (options.node) {
// Surge & Loon allow connecting to a server using a specified proxy node
if (isSurge) {
const build = $environment['surge-build'];
if (build && parseInt(build) >= 2407) {
options['policy-descriptor'] = options.node;
delete options.node;
}
}
}
let worker;
if (isQX) {
worker = $task.fetch({

151
scripts/ip-flag.js Normal file
View File

@ -0,0 +1,151 @@
const RESOURCE_CACHE_KEY = '#sub-store-cached-resource';
const CACHE_EXPIRATION_TIME_MS = 10 * 60 * 1000;
const $ = $substore;
class ResourceCache {
constructor(expires) {
this.expires = expires;
if (!$.read(RESOURCE_CACHE_KEY)) {
$.write('{}', RESOURCE_CACHE_KEY);
}
this.resourceCache = JSON.parse($.read(RESOURCE_CACHE_KEY));
this._cleanup();
}
_cleanup() {
// clear obsolete cached resource
let clear = false;
Object.entries(this.resourceCache).forEach((entry) => {
const [id, updated] = entry;
if (new Date().getTime() - updated > this.expires) {
$.delete(`#${id}`);
delete this.resourceCache[id];
clear = true;
}
});
if (clear) this._persist();
}
revokeAll() {
Object.keys(this.resourceCache).forEach((id) => {
$.delete(`#${id}`);
});
this.resourceCache = {};
this._persist();
}
_persist() {
$.write(JSON.stringify(this.resourceCache), RESOURCE_CACHE_KEY);
}
get(id) {
const updated = this.resourceCache[id];
if (updated && new Date().getTime() - updated <= this.expires) {
return $.read(`#${id}`);
}
return null;
}
set(id, value) {
this.resourceCache[id] = new Date().getTime();
this._persist();
$.write(value, `#${id}`);
}
}
const resourceCache = new ResourceCache(CACHE_EXPIRATION_TIME_MS);
async function operator(proxies) {
const { isLoon, isSurge } = $substore.env;
let support = true;
if (isLoon) {
support = true;
} else if (isSurge) {
const build = $environment['surge-build'];
if (build && parseInt(build) >= 2407) {
support = true;
}
}
if (support) {
await Promise.all(proxies.map(async proxy => {
try {
// remove the original flag
let proxyName = removeFlag(proxy.name);
// query ip-api
const countryCode = await queryIpApi(proxy);
proxyName = getFlagEmoji(countryCode) + ' ' + proxyName;
proxy.name = proxyName;
} catch (err) {
// TODO:
}
}));
} else {
$.error(`IP Flag only supports Loon and Surge!`);
}
return proxies;
}
const tasks = new Map();
async function queryIpApi(proxy) {
const id = getId(proxy);
if (tasks.has(id)) {
return tasks.get(id);
}
const ua = "Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10; rv:78.0) Gecko/20100101 Firefox/78.0";
const headers = {
"User-Agent": ua
};
const { isLoon } = $substore.env;
const target = isLoon ? "Loon" : "Surge";
const result = new Promise((resolve, reject) => {
const cached = resourceCache.get(id);
if (cached) {
resolve(cached);
}
const url = `http://ip-api.com/json`;
const node = ProxyUtils.produce([proxy], target);
$.http.get({
url,
headers,
node
}).then(resp => {
const body = resp.body;
const data = JSON.parse(body);
if (data.status === "success") {
resourceCache.set(id, data.countryCode);
resolve(data.countryCode);
} else {
reject(new Error(data.message));
}
}).catch(err => {
console.log(err);
reject(err);
});
});
tasks.set(id, result);
return result;
}
function getId(proxy) {
return MD5(`IP-FLAG-${proxy.server}-${proxy.port}`);
}
function getFlagEmoji(countryCode) {
const codePoints = countryCode
.toUpperCase()
.split('')
.map(char => 127397 + char.charCodeAt());
return String.fromCodePoint(...codePoints);
}
function removeFlag(str) {
return str
.replace(/[\uD83C][\uDDE6-\uDDFF][\uD83C][\uDDE6-\uDDFF]/g, '')
.trim();
}
var MD5 = function (d) { var r = M(V(Y(X(d), 8 * d.length))); return r.toLowerCase() }; function M(d) { for (var _, m = "0123456789ABCDEF", f = "", r = 0; r < d.length; r++)_ = d.charCodeAt(r), f += m.charAt(_ >>> 4 & 15) + m.charAt(15 & _); return f } function X(d) { for (var _ = Array(d.length >> 2), m = 0; m < _.length; m++)_[m] = 0; for (m = 0; m < 8 * d.length; m += 8)_[m >> 5] |= (255 & d.charCodeAt(m / 8)) << m % 32; return _ } function V(d) { for (var _ = "", m = 0; m < 32 * d.length; m += 8)_ += String.fromCharCode(d[m >> 5] >>> m % 32 & 255); return _ } function Y(d, _) { d[_ >> 5] |= 128 << _ % 32, d[14 + (_ + 64 >>> 9 << 4)] = _; for (var m = 1732584193, f = -271733879, r = -1732584194, i = 271733878, n = 0; n < d.length; n += 16) { var h = m, t = f, g = r, e = i; f = md5_ii(f = md5_ii(f = md5_ii(f = md5_ii(f = md5_hh(f = md5_hh(f = md5_hh(f = md5_hh(f = md5_gg(f = md5_gg(f = md5_gg(f = md5_gg(f = md5_ff(f = md5_ff(f = md5_ff(f = md5_ff(f, r = md5_ff(r, i = md5_ff(i, m = md5_ff(m, f, r, i, d[n + 0], 7, -680876936), f, r, d[n + 1], 12, -389564586), m, f, d[n + 2], 17, 606105819), i, m, d[n + 3], 22, -1044525330), r = md5_ff(r, i = md5_ff(i, m = md5_ff(m, f, r, i, d[n + 4], 7, -176418897), f, r, d[n + 5], 12, 1200080426), m, f, d[n + 6], 17, -1473231341), i, m, d[n + 7], 22, -45705983), r = md5_ff(r, i = md5_ff(i, m = md5_ff(m, f, r, i, d[n + 8], 7, 1770035416), f, r, d[n + 9], 12, -1958414417), m, f, d[n + 10], 17, -42063), i, m, d[n + 11], 22, -1990404162), r = md5_ff(r, i = md5_ff(i, m = md5_ff(m, f, r, i, d[n + 12], 7, 1804603682), f, r, d[n + 13], 12, -40341101), m, f, d[n + 14], 17, -1502002290), i, m, d[n + 15], 22, 1236535329), r = md5_gg(r, i = md5_gg(i, m = md5_gg(m, f, r, i, d[n + 1], 5, -165796510), f, r, d[n + 6], 9, -1069501632), m, f, d[n + 11], 14, 643717713), i, m, d[n + 0], 20, -373897302), r = md5_gg(r, i = md5_gg(i, m = md5_gg(m, f, r, i, d[n + 5], 5, -701558691), f, r, d[n + 10], 9, 38016083), m, f, d[n + 15], 14, -660478335), i, m, d[n + 4], 20, -405537848), r = md5_gg(r, i = md5_gg(i, m = md5_gg(m, f, r, i, d[n + 9], 5, 568446438), f, r, d[n + 14], 9, -1019803690), m, f, d[n + 3], 14, -187363961), i, m, d[n + 8], 20, 1163531501), r = md5_gg(r, i = md5_gg(i, m = md5_gg(m, f, r, i, d[n + 13], 5, -1444681467), f, r, d[n + 2], 9, -51403784), m, f, d[n + 7], 14, 1735328473), i, m, d[n + 12], 20, -1926607734), r = md5_hh(r, i = md5_hh(i, m = md5_hh(m, f, r, i, d[n + 5], 4, -378558), f, r, d[n + 8], 11, -2022574463), m, f, d[n + 11], 16, 1839030562), i, m, d[n + 14], 23, -35309556), r = md5_hh(r, i = md5_hh(i, m = md5_hh(m, f, r, i, d[n + 1], 4, -1530992060), f, r, d[n + 4], 11, 1272893353), m, f, d[n + 7], 16, -155497632), i, m, d[n + 10], 23, -1094730640), r = md5_hh(r, i = md5_hh(i, m = md5_hh(m, f, r, i, d[n + 13], 4, 681279174), f, r, d[n + 0], 11, -358537222), m, f, d[n + 3], 16, -722521979), i, m, d[n + 6], 23, 76029189), r = md5_hh(r, i = md5_hh(i, m = md5_hh(m, f, r, i, d[n + 9], 4, -640364487), f, r, d[n + 12], 11, -421815835), m, f, d[n + 15], 16, 530742520), i, m, d[n + 2], 23, -995338651), r = md5_ii(r, i = md5_ii(i, m = md5_ii(m, f, r, i, d[n + 0], 6, -198630844), f, r, d[n + 7], 10, 1126891415), m, f, d[n + 14], 15, -1416354905), i, m, d[n + 5], 21, -57434055), r = md5_ii(r, i = md5_ii(i, m = md5_ii(m, f, r, i, d[n + 12], 6, 1700485571), f, r, d[n + 3], 10, -1894986606), m, f, d[n + 10], 15, -1051523), i, m, d[n + 1], 21, -2054922799), r = md5_ii(r, i = md5_ii(i, m = md5_ii(m, f, r, i, d[n + 8], 6, 1873313359), f, r, d[n + 15], 10, -30611744), m, f, d[n + 6], 15, -1560198380), i, m, d[n + 13], 21, 1309151649), r = md5_ii(r, i = md5_ii(i, m = md5_ii(m, f, r, i, d[n + 4], 6, -145523070), f, r, d[n + 11], 10, -1120210379), m, f, d[n + 2], 15, 718787259), i, m, d[n + 9], 21, -343485551), m = safe_add(m, h), f = safe_add(f, t), r = safe_add(r, g), i = safe_add(i, e) } return Array(m, f, r, i) } function md5_cmn(d, _, m, f, r, i) { return safe_add(bit_rol(safe_add(safe_add(_, d), safe_add(f, i)), r), m) } function md5_ff(d, _, m, f, r, i, n) { return md5_cmn(_ & m | ~_ & f, d, _, r, i, n) } function md5_gg(d, _, m, f, r, i, n) { return md5_cmn(_ & f | m & ~f, d, _, r, i, n) } function md5_hh(d, _, m, f, r, i, n) { return md5_cmn(_ ^ m ^ f, d, _, r, i, n) } function md5_ii(d, _, m, f, r, i, n) { return md5_cmn(m ^ (_ | ~f), d, _, r, i, n) } function safe_add(d, _) { var m = (65535 & d) + (65535 & _); return (d >> 16) + (_ >> 16) + (m >> 16) << 16 | 65535 & m } function bit_rol(d, _) { return d << _ | d >>> 32 - _ }