rename index.js to coretool.js

index.js

@@ -1,193 +0,0 @@
-/* 基础小工具，可通用于服务端和用户端
- */
-
-module.exports = {
-  sleep: (ms) => new Promise((resolve, reject) => setTimeout(resolve, ms)),
-
-  parseJsonPossible(value) {
-    try {
-      return JSON.parse(value)
-    } catch (e) {
-      return value
-    }
-  },
-
-  // 按顺序展开，哪怕嵌套。
-  stringifyOrdered (obj, {cmp, cycles = false, space = '', replacer, schemaColumns, excludeKeys = []} = {}) {
-
-    /* 这个解决方法不考虑缺省值，不能把嵌套对象也按顺序展开。*/
-//    return JSON.stringify(obj, Object.keys(schemaColumns || entity).sort().filter(key => ! excludeKeys.includes(key))) // JSON.stringify 可根据第二个数组参数的顺序排序
-
-    let newObj = {}
-    if (schemaColumns) {
-      for (let key in schemaColumns){
-        if (schemaColumns.hasOwnProperty(key) && ! schemaColumns[key].hashExclusive && ! excludeKeys.includes(key)) {
-          // JSON.stringify (包括本函数）会把 NaN 或 Infinity 输出为 null，会把 undefined 忽略掉。
-          // 而在typeorm sqlite数据库中，undefined 会自动存为 schemaColumns[key].default 或 null。从数据库读出时，就会和事先JSON.stringify的结果不一致。
-          // 为了和数据库保持一致习惯，对schemaColumns里的键值最好把 undefined 也设为 default 或 null。
-          if (obj[key] === undefined || Number.isNaN(obj[key]) || obj[key] === Infinity) {
-            newObj[key] = schemaColumns[key].default || null
-            obj[key] = schemaColumns[key].default || null // 确保内存中的数据和数据库保持一致
-          }else {
-            newObj[key] = obj[key]
-          }
-        }
-      }
-    }else{
-      newObj = obj
-    }
-
-    /* 以下代码来自 https://github.com/substack/json-stable-stringify 可把嵌套的复杂值也按顺序输出，例如 { c: 8, b: [{z:6,y:5,x:4},7], a: 3 } */
-    if (typeof space === 'number') space = Array(space+1).join(' ')
-    var cycles = (typeof cycles === 'boolean') ? cycles : false
-    var replacer = replacer || function(key, value) { return value }
-
-    var cmp = cmp && (function (f) {
-        return function (node) {
-            return function (a, b) {
-                var aobj = { key: a, value: node[a] }
-                var bobj = { key: b, value: node[b] }
-                return f(aobj, bobj)
-            }
-        }
-    })(cmp)
-
-    var seen = []
-    return (function stringify (parent, key, node, level) {
-        var indent = space ? ('\n' + new Array(level + 1).join(space)) : ''
-        var colonSeparator = space ? ': ' : ':'
-
-        if (node && node.toJSON && typeof node.toJSON === 'function') {
-            node = node.toJSON()
-        }
-
-        node = replacer.call(parent, key, node)
-
-        if (node === undefined) {
-            return
-        }
-        if (typeof node !== 'object' || node === null) {
-            return JSON.stringify(node)
-        }
-        if (Array.isArray(node)) {
-            var out = []
-            for (var i = 0; i < node.length; i++) {
-                var item = stringify(node, i, node[i], level+1) || JSON.stringify(null)
-                out.push(indent + space + item)
-            }
-            return '[' + out.join(',') + indent + ']'
-        }
-        else {
-            if (seen.indexOf(node) !== -1) {
-                if (cycles) return JSON.stringify('__cycle__')
-                throw new TypeError('Converting circular structure to JSON')
-            }
-            else seen.push(node)
-
-            var keys = Object.keys(node).sort(cmp && cmp(node))
-            var out = []
-            for (var i = 0; i < keys.length; i++) {
-                var key = keys[i]
-                var value = stringify(node, key, node[key], level+1)
-
-                if(!value) continue
-
-                var keyValue = JSON.stringify(key)
-                    + colonSeparator
-                    + value
-                
-                out.push(indent + space + keyValue)
-            }
-            seen.splice(seen.indexOf(node), 1)
-            return '{' + out.join(',') + indent + '}'
-        }
-    })({ '': newObj }, '', newObj, 0)
-  },
-
-  name2port(name='') {
-    let port = name.toLowerCase()
-      .replace(/[abc]/g, 2)
-      .replace(/[def]/g, 3)
-      .replace(/[ghi]/g, 4)
-      .replace(/[jkl]/g, 5)
-      .replace(/[mno]/g, 6)
-      .replace(/[pqrs]/g, 7)
-      .replace(/[tuv]/g, 8)
-      .replace(/[wxyz]/g, 9)
-    return parseInt(port)
-  },
-
-  randomNumber ({ length, min, max } = {}) {
-    // 长度为 length 的随机数字，或者 (min||0) <= num < max
-    var num = 0
-    if (typeof length === 'number' && length > 0) {
-      num = parseInt(Math.random() * Math.pow(10, length))
-      num = num.toString().padStart(length, '0')
-    } else if (typeof max === 'number' && max > 0) {
-      min = typeof min === 'number' && min >= 0 ? min : 0
-      num = parseInt(Math.random() * (max - min)) + min
-    } else {
-      // 如果 option 为空
-      num = Math.random()
-    }
-    return num
-  },
-
-  hash (data, { hasher = 'sha256', salt, input = 'utf8', output = 'hex' } = {}) {
-    if (typeof data !== 'string' && !(data instanceof Buffer) && !(data instanceof DataView)) data = JSON.stringify(data)
-    if (salt && typeof salt === 'string') data = data + salt
-    const inputEncoding = input // my.INPUT_LIST.indexOf(option.input)>=0?option.input:my.INPUT // 'utf8', 'ascii' or 'latin1' for string data, default to utf8 if not specified; ignored for Buffer, TypedArray, or DataView.
-    const outputEncoding = output === 'buf' ? undefined : output // (my.OUTPUT_LIST.indexOf(output)>=0?output:my.OUTPUT)  // option.output: 留空=》默认输出hex格式；或者手动指定 'buf', hex', 'latin1' or 'base64'
-    return require('crypto').createHash(hasher).update(data, inputEncoding).digest(outputEncoding)
-  },
-
-  /**
-   * 用户编号转邀请码
-   *
-   * @static
-   * @param {*} aiid
-   * @return {*}
-   * @memberof TICrypto
-   */
-  aiid2regcode (aiid) {
-    const alphabet = 'e5fcdg3hqa4b1n0pij2rstuv67mwx89klyz'
-    const base = 16367
-    let num = (aiid + base) * (base - alphabet.length)
-    let code = ''
-    let mod
-    while (num > 0) {
-      mod = num % alphabet.length
-      num = (num - mod) / alphabet.length
-      code = code + alphabet[mod] // 倒序存放
-    }
-    return code
-  },
-
-  /**
-   * 邀请码转用户编号
-   *
-   * @static
-   * @param {*} code
-   * @return {*}
-   * @memberof TICrypto
-   */
-  regcode2aiid (code) {
-    if (typeof code === 'string' && /^[a-zA-Z0-9]+$/.test(code)) {
-      const alphabet = 'e5fcdg3hqa4b1n0pij2rstuv67mwx89klyz'
-      const base = 16367
-      code = code.toLowerCase()
-      let len = code.length
-      let num = 0
-      for (let i = 0; i < len; i++) {
-        num += alphabet.indexOf(code[i]) * Math.pow(alphabet.length, i)
-      }
-      let aiid = num / (base - alphabet.length) - base
-      if (aiid >= 0 && Number.isInteger(aiid)) {
-        // 允许 aiid===0：当第一个用户（aiid==1）登录时，需要一个系统默认的邀请码。
-        return aiid
-      }
-    }
-    return null // null 代表一切非法的regcode
-  },
-
-}