//base64.js 第一步
var Base64 = {
// private property
_keyStr : "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=",
// public method for encoding
encode : function (input) {
var output = "";
var chr1, chr2, chr3, enc1, enc2, enc3, enc4;
var i = 0;
input = Base64._utf8_encode(input);
while (i < input.length) {
chr1 = input.charCodeAt(i++);
chr2 = input.charCodeAt(i++);
chr3 = input.charCodeAt(i++);
enc1 = chr1 >> 2;
enc2 = ((chr1 & 3) << 4) | (chr2 >> 4);
enc3 = ((chr2 & 15) << 2) | (chr3 >> 6);
enc4 = chr3 & 63;
if (isNaN(chr2)) {
enc3 = enc4 = 64;
} else if (isNaN(chr3)) {
enc4 = 64;
}
output = output +
this._keyStr.charAt(enc1) + this._keyStr.charAt(enc2) +
this._keyStr.charAt(enc3) + this._keyStr.charAt(enc4);
}
return output;
},
// public method for decoding
decode : function (input) {
var output = "";
var chr1, chr2, chr3;
var enc1, enc2, enc3, enc4;
var i = 0;
input = input.replace(/[^A-Za-z0-9\+\/\=]/g, "");
while (i < input.length) {
enc1 = this._keyStr.indexOf(input.charAt(i++));
enc2 = this._keyStr.indexOf(input.charAt(i++));
enc3 = this._keyStr.indexOf(input.charAt(i++));
enc4 = this._keyStr.indexOf(input.charAt(i++));
chr1 = (enc1 << 2) | (enc2 >> 4);
chr2 = ((enc2 & 15) << 4) | (enc3 >> 2);
chr3 = ((enc3 & 3) << 6) | enc4;
output = output + String.fromCharCode(chr1);
if (enc3 != 64) {
output = output + String.fromCharCode(chr2);
}
if (enc4 != 64) {
output = output + String.fromCharCode(chr3);
}
}
output = Base64._utf8_decode(output);
return output;
},
// private method for UTF-8 encoding
_utf8_encode : function (string) {
string = string.replace(/\r\n/g,"\n");
var utftext = "";
for (var n = 0; n < string.length; n++) {
var c = string.charCodeAt(n);
if (c < 128) {
utftext += String.fromCharCode(c);
}
else if((c > 127) && (c < 2048)) {
utftext += String.fromCharCode((c >> 6) | 192);
utftext += String.fromCharCode((c & 63) | 128);
}
else {
utftext += String.fromCharCode((c >> 12) | 224);
utftext += String.fromCharCode(((c >> 6) & 63) | 128);
utftext += String.fromCharCode((c & 63) | 128);
}
}
return utftext;
},
// private method for UTF-8 decoding
_utf8_decode : function (utftext) {
var string = "";
var i = 0;
var c = c1 = c2 = 0;
while ( i < utftext.length ) {
c = utftext.charCodeAt(i);
if (c < 128) {
string += String.fromCharCode(c);
i++;
}
else if((c > 191) && (c < 224)) {
c2 = utftext.charCodeAt(i+1);
string += String.fromCharCode(((c & 31) << 6) | (c2 & 63));
i += 2;
}
else {
c2 = utftext.charCodeAt(i+1);
c3 = utftext.charCodeAt(i+2);
string += String.fromCharCode(((c & 15) << 12) | ((c2 & 63) << 6) | (c3 & 63));
i += 3;
}
}
return string;
}
}
module.exports = Base64;
//crypto.js 第二步
/*!
* Crypto-JS v1.1.0
* http://code.google.com/p/crypto-js/
* Copyright (c) 2009, Jeff Mott. All rights reserved.
* http://code.google.com/p/crypto-js/wiki/License
*/
var base64map = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
// Global Crypto object
const Crypto = {};
// Crypto utilities
Crypto.util = {
// Bit-wise rotate left
rotl: function(n, b) {
return (n << b) | (n >>> (32 - b));
},
// Bit-wise rotate right
rotr: function(n, b) {
return (n << (32 - b)) | (n >>> b);
},
// Swap big-endian to little-endian and vice versa
endian: function(n) {
// If number given, swap endian
if (n.constructor == Number) {
return util.rotl(n, 8) & 0x00FF00FF |
util.rotl(n, 24) & 0xFF00FF00;
}
// Else, assume array and swap all items
for (var i = 0; i < n.length; i++)
n[i] = util.endian(n[i]);
return n;
},
// Generate an array of any length of random bytes
randomBytes: function(n) {
for (var bytes = []; n > 0; n--)
bytes.push(Math.floor(Math.random() * 256));
return bytes;
},
// Convert a string to a byte array
stringToBytes: function(str) {
var bytes = [];
for (var i = 0; i < str.length; i++)
bytes.push(str.charCodeAt(i));
return bytes;
},
// Convert a byte array to a string
bytesToString: function(bytes) {
var str = [];
for (var i = 0; i < bytes.length; i++)
str.push(String.fromCharCode(bytes[i]));
return str.join("");
},
// Convert a string to big-endian 32-bit words
stringToWords: function(str) {
var words = [];
for (var c = 0, b = 0; c < str.length; c++, b += 8)
words[b >>> 5] |= str.charCodeAt(c) << (24 - b % 32);
return words;
},
// Convert a byte array to big-endian 32-bits words
bytesToWords: function(bytes) {
var words = [];
for (var i = 0, b = 0; i < bytes.length; i++, b += 8)
words[b >>> 5] |= bytes[i] << (24 - b % 32);
return words;
},
// Convert big-endian 32-bit words to a byte array
wordsToBytes: function(words) {
var bytes = [];
for (var b = 0; b < words.length * 32; b += 8)
bytes.push((words[b >>> 5] >>> (24 - b % 32)) & 0xFF);
return bytes;
},
// Convert a byte array to a hex string
bytesToHex: function(bytes) {
var hex = [];
for (var i = 0; i < bytes.length; i++) {
hex.push((bytes[i] >>> 4).toString(16));
hex.push((bytes[i] & 0xF).toString(16));
}
return hex.join("");
},
// Convert a hex string to a byte array
hexToBytes: function(hex) {
var bytes = [];
for (var c = 0; c < hex.length; c += 2)
bytes.push(parseInt(hex.substr(c, 2), 16));
return bytes;
},
// Convert a byte array to a base-64 string
bytesToBase64: function(bytes) {
// Use browser-native function if it exists
if (typeof btoa == "function") return btoa(util.bytesToString(bytes));
var base64 = [],
overflow;
for (var i = 0; i < bytes.length; i++) {
switch (i % 3) {
case 0:
base64.push(base64map.charAt(bytes[i] >>> 2));
overflow = (bytes[i] & 0x3) << 4;
break;
case 1:
base64.push(base64map.charAt(overflow | (bytes[i] >>> 4)));
overflow = (bytes[i] & 0xF) << 2;
break;
case 2:
base64.push(base64map.charAt(overflow | (bytes[i] >>> 6)));
base64.push(base64map.charAt(bytes[i] & 0x3F));
overflow = -1;
}
}
// Encode overflow bits, if there are any
if (overflow != undefined && overflow != -1)
base64.push(base64map.charAt(overflow));
// Add padding
while (base64.length % 4 != 0) base64.push("=");
return base64.join("");
},
// Convert a base-64 string to a byte array
base64ToBytes: function(base64) {
// Use browser-native function if it exists
if (typeof atob == "function") return util.stringToBytes(atob(base64));
// Remove non-base-64 characters
base64 = base64.replace(/[^A-Z0-9+\/]/ig, "");
var bytes = [];
for (var i = 0; i < base64.length; i++) {
switch (i % 4) {
case 1:
bytes.push((base64map.indexOf(base64.charAt(i - 1)) << 2) |
(base64map.indexOf(base64.charAt(i)) >>> 4));
break;
case 2:
bytes.push(((base64map.indexOf(base64.charAt(i - 1)) & 0xF) << 4) |
(base64map.indexOf(base64.charAt(i)) >>> 2));
break;
case 3:
bytes.push(((base64map.indexOf(base64.charAt(i - 1)) & 0x3) << 6) |
(base64map.indexOf(base64.charAt(i))));
break;
}
}
return bytes;
},
HMAC: function(hasher, message, key, options) {
// Allow arbitrary length keys
key = key.length > 16 * 4 ?
hasher(key, {
asBytes: true
}) :
Crypto.util.stringToBytes(key);
// XOR keys with pad constants
var okey = key,
ikey = key.slice(0);
for (var i = 0; i < 16 * 4; i++) {
okey[i] ^= 0x5C;
ikey[i] ^= 0x36;
}
var hmacbytes = hasher(Crypto.util.bytesToString(okey) +
hasher(Crypto.util.bytesToString(ikey) + message, {
asString: true
}), {
asBytes: true
});
return options && options.asBytes ? hmacbytes :
options && options.asString ? Crypto.util.bytesToString(hmacbytes) :
Crypto.util.bytesToHex(hmacbytes);
},
sha11: function(k) {
var u = Crypto.util.stringToWords(k),
v = k.length * 8,
o = [],
q = 1732584193,
p = -271733879,
h = -1732584194,
g = 271733878,
f = -1009589776;
u[v >> 5] |= 128 << (24 - v % 32);
u[((v + 64 >>> 9) << 4) + 15] = v;
for (var y = 0; y < u.length; y += 16) {
var D = q,
C = p,
B = h,
A = g,
z = f;
for (var x = 0; x < 80; x++) {
if (x < 16) {
o[x] = u[y + x]
} else {
var s = o[x - 3] ^ o[x - 8] ^ o[x - 14] ^ o[x - 16];
o[x] = (s << 1) | (s >>> 31)
}
var r = ((q << 5) | (q >>> 27)) + f + (o[x] >>> 0) + (x < 20 ? (p & h | ~p & g) + 1518500249 : x < 40 ? (p ^ h ^ g) + 1859775393 : x < 60 ? (p & h | p & g | h & g) - 1894007588 : (p ^ h ^ g) - 899497514);
f = g;
g = h;
h = (p << 30) | (p >>> 2);
p = q;
q = r
}
q += D;
p += C;
h += B;
g += A;
f += z
}
return [q, p, h, g, f]
},
SHA1: function(e, c) {
var d = Crypto.util.wordsToBytes(Crypto.util.sha11(e));
return c && c.asBytes ? d : c && c.asString ? Crypto.util.bytesToString(d) : Crypto.util.bytesToHex(d)
}
};
// Crypto mode namespace
Crypto.mode = {};
module.exports = Crypto;
//第三步 alioss.js
const Base64 = require('./base64.js');
const Crypto = require('./crypto.js');
const host= '阿里云服务器地址'
const aliOSS = {
accessKeyID: '阿里云keyid',
accessKeySecret: '阿里云秘钥',
host: host,
timeout: 87600,
};
function uploadFile(filePath,cataLog,aliyunFileKey = (new Date().getTime())) {
return new Promise(function (resolve, reject) {
if (!filePath) {
reject({
status: false,
err:'文件错误',
});
return;
}
//文件后缀
let dotIndex = filePath.lastIndexOf('.');
let filePathLength = filePath.length;
let suffix = filePath.substring(dotIndex, filePathLength);
// 身份证号码或者时间戳
aliyunFileKey = aliyunFileKey + '.' + suffix;
const aliyunServerURL = aliOSS.host;
const accessid = aliOSS.accessKeyID;
const policyBase64 = Base64.encode(JSON.stringify({
"expiration": new Date(new Date().getTime() + aliOSS.timeout).toISOString(),
"conditions": [
["content-length-range", 0, 1024 * 1024 * 10]//10m
]
}));
let bytes = Crypto.util.HMAC(Crypto.util.SHA1, policyBase64, aliOSS.accessKeySecret, { asBytes: true });
const signature = Crypto.util.bytesToBase64(bytes);
wx.uploadFile({
url: aliyunServerURL,
filePath: filePath,
name: 'file',
header:{
'Content-Type': 'image/jpg'
},
formData: {
'key': `${cataLog}/${aliyunFileKey}`,
'OSSAccessKeyId': aliOSS.accessKeyID,
'policy': policyBase64,
'Signature': signature,
'success_action_status': '200',
},
success: function (res) {
if (res.errMsg === 'uploadFile:ok') {
let url = aliyunServerURL
resolve({
status: true,
data:{
url: url+`/${cataLog}/${aliyunFileKey}`,
},
err: '',
});
}
},
fail: function (err) {
reject({
status: false,
err,
});
},
})
});
}
module.exports = {
uploadFile: uploadFile
}
//使用 第四步
const { uploadFile } = require('../alioss.js')
uploadFile('base64URL','阿里云保存图片的文件名','身份证号也就是图片名称可写可不写')
uploadFile(url,'idImageFront',idNumber).then((value)=>{
},function(res){
})
//ps 小程序临时图片转base64
base64(url){
return new Promise((resolve, reject) => {
wx.getFileSystemManager().readFile({
filePath: url, //选择图片返回的相对路径
encoding: 'base64', //编码格式
success: res => {
resolve('data:image/jpeg' + ';base64,' + res.data)
},
fail: res => reject(res.errMsg)
})
})
},
