https://github.com/rstyro/iyby-tool
iyby
https://github.com/rstyro/iyby-tool
Last synced: 4 months ago
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iyby
- Host: GitHub
- URL: https://github.com/rstyro/iyby-tool
- Owner: rstyro
- License: mit
- Created: 2022-09-30T09:14:13.000Z (over 3 years ago)
- Default Branch: main
- Last Pushed: 2022-11-04T14:50:29.000Z (over 3 years ago)
- Last Synced: 2024-12-30T14:51:07.642Z (over 1 year ago)
- Language: Vue
- Size: 428 KB
- Stars: 1
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
README
# iyby-tool
- 小程序工具库
### 一、jsencrypt.js 处理
- jsncrypt代码里面含有window、document、navigator对象
- 因为在小程序中没有这些对象,所以需要处理
**问题1：**
```js
// 找到如下代码，大概2624行：
if (j_lm && (navigator.appName == "Microsoft Internet Explorer")) {
BigInteger.prototype.am = am2;
dbits = 30;
} else if (j_lm && (navigator.appName != "Netscape")) {
BigInteger.prototype.am = am1;
dbits = 26;
} else { // Mozilla/Netscape seems to prefer am3
BigInteger.prototype.am = am3;
dbits = 28;
}
// 修改为： 只保留最后的else分支即可
BigInteger.prototype.am = am3;
dbits = 28;
```
**问题2：**
```js
// 找到下面代码注释上，大概2754
if (window.crypto && window.crypto.getRandomValues) {
// Extract entropy (2048 bits) from RNG if available
var z = new Uint32Array(256);
window.crypto.getRandomValues(z);
for (t = 0; t < z.length; ++t) {
rng_pool[rng_pptr++] = z[t] & 255;
}
}
// 改为如下：
var getRandomValues = function (array) {
for (var i = 0, l = array.length; i < l; i++) {
array[i] = Math.floor(Math.random() * 256);
} return array;
}
var z = new Uint32Array(256);
getRandomValues(z);
```
**问题3：**
- 兼容window.removeEventListener、window.detachEvent，直接将所有的监听事件注释即可
```js
// 代码块1 注释如下代码
if (window.removeEventListener) {
window.removeEventListener("mousemove", onMouseMoveListener_1, false);
}
else if (window.detachEvent) {
window.detachEvent("onmousemove", onMouseMoveListener_1);
}
// 代码块2
if (window.addEventListener) {
window.addEventListener("mousemove", onMouseMoveListener_1, false);
}
else if (window.attachEvent) {
window.attachEvent("onmousemove", onMouseMoveListener_1);
}
// 代码块3 ，没有window对象，这个也注释上
window.JSEncrypt = JSEncrypt
```
### 二、crypto-js
- 这个不能装最新版本的，最新版本的用到了`window.crypto.getRandomValues`
- 在小程序中没有window对象，所以没法用。
- 只能用3.3.0版本的才可以
```js
npm install crypto-js@3.3.0 -S
```