232 lines
8.0 KiB
JavaScript
232 lines
8.0 KiB
JavaScript
//console.log('responseBody'+responseBody)
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function Base64 () {
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// private property
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this._keyStr = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
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}
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//public method for encoding
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Base64.prototype.encode = function (input) {
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var output = "", chr1, chr2, chr3, enc1, enc2, enc3, enc4, i = 0;
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input = this._utf8_encode(input);
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while (i < input.length) {
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chr1 = input.charCodeAt(i++);
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chr2 = input.charCodeAt(i++);
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chr3 = input.charCodeAt(i++);
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enc1 = chr1 >> 2;
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enc2 = ((chr1 & 3) << 4) | (chr2 >> 4);
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enc3 = ((chr2 & 15) << 2) | (chr3 >> 6);
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enc4 = chr3 & 63;
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if (isNaN(chr2)) {
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enc3 = enc4 = 64;
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} else if (isNaN(chr3)) {
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enc4 = 64;
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}
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output = output +
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this._keyStr.charAt(enc1) + this._keyStr.charAt(enc2) +
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this._keyStr.charAt(enc3) + this._keyStr.charAt(enc4);
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}
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return output;
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}
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// public method for decoding
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Base64.prototype.decode = function (input) {
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var output = "", chr1, chr2, chr3, enc1, enc2, enc3, enc4, i = 0;
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input = input.replace(/[^A-Za-z0-9\+\/\=]/g, "");
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while (i < input.length) {
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enc1 = this._keyStr.indexOf(input.charAt(i++));
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enc2 = this._keyStr.indexOf(input.charAt(i++));
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enc3 = this._keyStr.indexOf(input.charAt(i++));
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enc4 = this._keyStr.indexOf(input.charAt(i++));
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chr1 = (enc1 << 2) | (enc2 >> 4);
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chr2 = ((enc2 & 15) << 4) | (enc3 >> 2);
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chr3 = ((enc3 & 3) << 6) | enc4;
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output = output + String.fromCharCode(chr1);
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if (enc3 != 64) {
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output = output + String.fromCharCode(chr2);
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}
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if (enc4 != 64) {
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output = output + String.fromCharCode(chr3);
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}
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}
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output = this._utf8_decode(output);
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return output;
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}
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// private method for UTF-8 encoding
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Base64.prototype._utf8_encode = function (string) {
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string = string.replace(/\r\n/g, "\n");
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var utftext = "";
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for (var n = 0; n < string.length; n++) {
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var c = string.charCodeAt(n);
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if (c < 128) {
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utftext += String.fromCharCode(c);
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} else if ((c > 127) && (c < 2048)) {
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utftext += String.fromCharCode((c >> 6) | 192);
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utftext += String.fromCharCode((c & 63) | 128);
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} else {
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utftext += String.fromCharCode((c >> 12) | 224);
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utftext += String.fromCharCode(((c >> 6) & 63) | 128);
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utftext += String.fromCharCode((c & 63) | 128);
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}
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}
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return utftext;
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}
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// private method for UTF-8 decoding
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Base64.prototype._utf8_decode = function (utftext) {
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var string = "", i = 0, c = 0, c1 = 0, c2 = 0, c3 = 0;
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while (i < utftext.length) {
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c = utftext.charCodeAt(i);
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if (c < 128) {
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string += String.fromCharCode(c);
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i++;
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} else if ((c > 191) && (c < 224)) {
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c2 = utftext.charCodeAt(i + 1);
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string += String.fromCharCode(((c & 31) << 6) | (c2 & 63));
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i += 2;
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} else {
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c2 = utftext.charCodeAt(i + 1);
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c3 = utftext.charCodeAt(i + 2);
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string += String.fromCharCode(((c & 15) << 12) | ((c2 & 63) << 6) | (c3 & 63));
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i += 3;
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}
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}
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return string;
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}
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var Base = new Base64();
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function md5 (str) {
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return CryptoJS.MD5(str).toString()
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}
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function authcode (string, isencrypt) {
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var timestamp = Date.parse(new Date()) / 1000;//;
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if (isencrypt)
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string = string + timestamp;
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var ckey_length = 5;
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// 密匙
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var key = postman.getEnvironmentVariable("encryptkey");
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key = md5(key)
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// 密匙a会参与加解密
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var keya = md5(key.substr(0, 12));
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//console.log('keya:'+keya)
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// 密匙b会用来做数据完整性验证
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var keyb = md5(key.substr(12, 20));
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// 密匙c用于变化生成的密文
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//console.log('keyb:'+keyb)
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var keyc = isencrypt ? md5(timestamp).substr(32 - ckey_length) : string.substr(0, ckey_length);
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//console.log('keyc:'+keyc)
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// 参与运算的密匙
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var cryptkey = keya + md5(keya + keyc);
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var key_length = cryptkey.length;
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// console.log('cryptkey:'+cryptkey)
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var tempstr = md5(string + keyb).substr(0, 18);//检验字符串
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string = isencrypt ? (timestamp + 120) + tempstr + string : Base.decode(string.substr(ckey_length));//timestamp+120过期时间
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var string_length = string.length;
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//console.log('string='+string+' length='+string_length);
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var result = '';
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var box = [];
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var rndkey = [];
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// 128是ascrii码,字符范围,也可取256以内其它数字,产生密匙簿,加解密的cryptkey是相同的,由当时时间md5生成的
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for (var i = 0; i < 128; i++) {
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rndkey[i] = cryptkey.charCodeAt(i % key_length);
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box[i] = i;
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}
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var tmp;
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// 用固定的算法，打乱密匙簿，增加随机性，好像很复杂，实际上对并不会增加密文的强度
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for (var j = 0, i = 0; i < 128; i++) {
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j = (j + box[i] + rndkey[i]) % 128;//rndkey[i]是随机数,j是也是随机,加起来也是随机数
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tmp = box[i];
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box[i] = box[j];
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box[j] = tmp;
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}
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// 核心加解密部分
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for (var a = j = i = 0; i < string_length; i++) {
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a = (a + 1) % 128;
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j = (j + box[a]) % 128;
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tmp = box[a];//再次打乱
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box[a] = box[j];
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box[j] = tmp;
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// 从密匙簿得出密匙进行异或，再转成字符
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var b = box[(box[a] + box[j]) % 128];
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var c = a ^ b;
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var d = String.fromCharCode(c);
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result += String.fromCharCode(string.charCodeAt(i) ^ (box[(box[a] + box[j]) % 128]));
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}
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//console.log('result='+result);
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if (isencrypt) {
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// 把动态密匙保存在密文里，这也是为什么同样的明文，生产不同密文后能解密的原因
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// 因为加密后的密文可能是一些特殊字符，复制过程可能会丢失，所以用base64编码
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return keyc + Base.encode(result);
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}
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else {
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return result.substr(28)
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}
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}
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function removeinterruptchars (str) {
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var newstring = '';
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for (var i = 0; i < str.length; i++) {
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if (i % 2 == 0)
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newstring = newstring + str.charAt(i);
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}
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return newstring;
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}
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function aesDecrypt (ciphertext, key, iv) {
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var decrypted = CryptoJS.AES.decrypt(ciphertext, key, {
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iv: iv,
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mode: CryptoJS.mode.CBC,
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padding: CryptoJS.pad.Pkcs7
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});
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return decrypted.toString(CryptoJS.enc.Utf8);//WordArray对象转utf8字符串
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}
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// pm.environment.set("isencrypt", "0");
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try {
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var data = JSON.parse(responseBody);
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console.log(data)
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tests["接口未加密,返回值查看body"] = 1
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}
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catch (err) {
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// pm.environment.set("isencrypt", "1");
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encstr = responseBody
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//console.log(encstr)
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if (pm.environment.get("interrupt_encrypt") == 1) {
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encstr = removeinterruptchars(encstr)
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//console.log('interupt '+encstr)
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}
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if (pm.environment.get("authcode_encrypt") == 1) {
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encstr = authcode(encstr, 0)
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// console.log('authcode '+encstr)
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}
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//console.log(encstr)
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encstr = encstr.replace(/_a/g, "/").replace(/_b/g, "+").replace(/_c/g, "=")
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tests["接口进行了加密,以下是解密内容,详细输出,打开view-show postman console查看打印结果"] = 1
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response = CryptoJS.enc.Base64.parse(encstr).toString(CryptoJS.enc.Latin1);
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iv = response.substr(0, 16)
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decdata = response.substr(48, response.length - 48)
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var cryptkey = postman.getEnvironmentVariable("encryptkey");
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//console.log(CryptoJS.enc.Base64.stringify(CryptoJS.enc.Latin1.parse(decdata)))
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decryptedMessage = aesDecrypt(CryptoJS.enc.Base64.stringify(CryptoJS.enc.Latin1.parse(decdata)), CryptoJS.enc.Utf8.parse(cryptkey), CryptoJS.enc.Utf8.parse(iv));//解密
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decryptedMessage = unescape(decryptedMessage.replace(/\\/g, "%"))
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tests[decryptedMessage] = 1
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console.log('解密后' + decryptedMessage)
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if (decryptedMessage) {
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obj = JSON.parse(decryptedMessage)
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console.log(obj)
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}
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}
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