1 | "use strict";
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2 | var __importDefault = (this && this.__importDefault) || function (mod) {
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3 | return (mod && mod.__esModule) ? mod : { "default": mod };
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4 | };
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5 | Object.defineProperty(exports, "__esModule", { value: true });
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6 | const lodash_1 = require("lodash");
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7 | const function_arguments_1 = __importDefault(require("function-arguments"));
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8 | const APIConfig_1 = require("./APIConfig");
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9 | const crypto_1 = __importDefault(require("crypto"));
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10 | const slugify_1 = __importDefault(require("slugify"));
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11 | const shortid_1 = __importDefault(require("shortid"));
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12 | const nanoid_1 = require("nanoid");
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13 | const safe_base64_1 = require("safe-base64");
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14 | slugify_1.default.extend({ "/": ":" });
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15 | class APIUtils {
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16 | static getRawTypeName(obj) {
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17 | return Object.prototype.toString.call(obj).slice(8, -1);
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18 | }
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19 | static generateShortID() {
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20 | return shortid_1.default.generate();
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21 | }
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22 | static generateLongID(length) {
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23 | return nanoid_1.nanoid(length);
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24 | }
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25 | static slugify(text) {
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26 | return slugify_1.default(text);
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27 | }
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28 | static convertToType(value, convertToType) {
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29 | if (lodash_1.isNil(convertToType)) {
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30 | return value;
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31 | }
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32 | let convertedValue;
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33 | let rawValueType = APIUtils.getRawTypeName(value);
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34 |
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35 | if (rawValueType === convertToType) {
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36 | return value;
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37 | }
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38 |
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39 | if (rawValueType === "Object" || rawValueType === "Array") {
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40 | if (convertToType === "String") {
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41 | try {
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42 | return JSON.stringify(value);
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43 | }
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44 | catch (e) {
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45 | }
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46 | }
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47 | return undefined;
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48 | }
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49 | switch (convertToType) {
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50 | case "String": {
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51 | convertedValue = lodash_1.toString(value);
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52 | break;
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53 | }
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54 | case "Boolean": {
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55 | convertedValue = APIUtils.toBoolean(value);
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56 | break;
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57 | }
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58 | case "Number": {
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59 | convertedValue = lodash_1.toNumber(value);
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60 | break;
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61 | }
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62 | case "Array": {
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63 | convertedValue = lodash_1.castArray(value);
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64 | break;
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65 | }
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66 | case "Object": {
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67 | try {
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68 | convertedValue = JSON.parse(value);
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69 | }
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70 | catch (e) {
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71 | convertedValue = value;
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72 | }
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73 | }
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74 | }
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75 | return convertedValue;
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76 | }
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77 | static toBoolean(input) {
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78 | if (lodash_1.isBoolean(input)) {
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79 | return input;
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80 | }
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81 | return (/(1|true|yes)/i).test(input);
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82 | }
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83 | static coalesce(...inputArgs) {
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84 | for (let inputArg of inputArgs) {
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85 |
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86 | if (lodash_1.isNil(inputArg) || (lodash_1.isString(inputArg) && inputArg === "")) {
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87 | continue;
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88 | }
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89 | return inputArg;
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90 | }
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91 | return null;
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92 | }
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93 | static getFunctionParamNames(fn) {
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94 | return function_arguments_1.default(fn);
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95 | }
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96 | static bufferToString(buffer, encoding) {
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97 | switch (encoding) {
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98 | case "urlsafe":
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99 | {
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100 | return safe_base64_1.encode(buffer);
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101 | }
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102 | default:
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103 | {
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104 | return buffer.toString(encoding);
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105 | }
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106 | }
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107 | }
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108 | static stringToBuffer(theString, encoding) {
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109 | switch (encoding) {
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110 | case "urlsafe":
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111 | {
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112 | return safe_base64_1.decode(theString);
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113 | }
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114 | default:
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115 | {
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116 | return Buffer.from(theString, encoding);
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117 | }
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118 | }
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119 | }
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120 | static encrypt(text, password = APIConfig_1.APIConfig.ENCRYPTION_SECRET, encoding = 'base64') {
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121 | password = lodash_1.padEnd(password, 32, "0");
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122 | let iv = crypto_1.default.randomBytes(this._IV_LENGTH);
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123 | let cipher = crypto_1.default.createCipheriv(this._CRYPTO_ALG, Buffer.from(password), iv);
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124 | let encrypted = cipher.update(text);
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125 | const separator = encoding === "urlsafe" ? "%3A" : ":";
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126 | encrypted = Buffer.concat([encrypted, cipher.final()]);
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127 | return APIUtils.bufferToString(iv, encoding) + separator + APIUtils.bufferToString(encrypted, encoding);
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128 | }
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129 | static decrypt(text, password = APIConfig_1.APIConfig.ENCRYPTION_SECRET, encoding = 'base64') {
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130 | const separator = encoding === "urlsafe" ? "%3A" : ":";
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131 | let textParts = text.split(separator);
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132 | let iv = APIUtils.stringToBuffer(textParts.shift(), encoding);
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133 | let encryptedText = APIUtils.stringToBuffer(textParts.join(separator), encoding);
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134 | let decipher = crypto_1.default.createDecipheriv(this._CRYPTO_ALG, Buffer.from(password), iv);
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135 | let decrypted = decipher.update(encryptedText);
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136 | decrypted = Buffer.concat([decrypted, decipher.final()]);
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137 | return decrypted.toString();
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138 | }
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139 | static hashString(text, encoding = 'base64') {
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140 | let shasum = crypto_1.default.createHash(this._HASH_ALG);
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141 | shasum.update(text);
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142 | return APIUtils.bufferToString(shasum.digest(), encoding);
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143 | }
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144 | static hashMD5(text, encoding = 'base64') {
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145 | let md5 = crypto_1.default.createHash('md5');
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146 | md5.update(text);
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147 | return APIUtils.bufferToString(md5.digest(), encoding);
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148 | }
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149 | |
150 |
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151 |
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152 |
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153 | static createExpirationInSeconds(expirationInSeconds) {
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154 | return Math.floor(Date.now() / 1000) + expirationInSeconds;
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155 | }
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156 | }
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157 | exports.APIUtils = APIUtils;
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158 | APIUtils._IV_LENGTH = 16;
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159 | APIUtils._CRYPTO_ALG = 'aes-256-cbc';
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160 | APIUtils._HASH_ALG = 'sha256';
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161 |
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