chore(version): 更新api到4.28.0

Co-Authored-By: binaryify <binaryify@gmail.com>

util/index.js

@@ -1,49 +1,156 @@
+// 预先定义常量和函数引用
+const chinaIPPrefixes = [
+  '116.25',
+  '116.76',
+  '116.77',
+  '116.78',
+  '116.79',
+  '116.80',
+  '116.81',
+  '116.82',
+  '116.83',
+  '116.84',
+  '116.85',
+  '116.86',
+  '116.87',
+  '116.88',
+  '116.89',
+  '116.90',
+  '116.91',
+  '116.92',
+  '116.93',
+  '116.94',
+]
+const prefixesLength = chinaIPPrefixes.length
+const floor = Math.floor
+const random = Math.random
+const keys = Object.keys
+
+// 预编译encodeURIComponent以减少查找开销
+const encode = encodeURIComponent
+
 module.exports = {
   toBoolean(val) {
     if (typeof val === 'boolean') return val
     if (val === '') return val
     return val === 'true' || val == '1'
   },
+
   cookieToJson(cookie) {
     if (!cookie) return {}
     let cookieArr = cookie.split(';')
     let obj = {}
-    cookieArr.forEach((i) => {
-      let arr = i.split('=')
-      if (arr.length == 2) obj[arr[0].trim()] = arr[1].trim()
-    })
+
+    // 优化：使用for循环替代forEach，性能更好
+    for (let i = 0, len = cookieArr.length; i < len; i++) {
+      let item = cookieArr[i]
+      let arr = item.split('=')
+      // 优化：使用严格等于
+      if (arr.length === 2) {
+        obj[arr[0].trim()] = arr[1].trim()
+      }
+    }
     return obj
   },
-  cookieObjToString(cookie) {
-    return Object.keys(cookie)
-      .map(
-        (key) =>
-          `${encodeURIComponent(key)}=${encodeURIComponent(cookie[key])}`,
-      )
-      .join('; ')
-  },
-  getRandom(num) {
-    var random = Math.floor(
-      (Math.random() + Math.floor(Math.random() * 9 + 1)) *
-        Math.pow(10, num - 1),
-    )
-    return random
-  },
-  generateRandomChineseIP() {
-    const chinaIPPrefixes = ['116.25', '116.76', '116.77', '116.78']
 
-    const randomPrefix =
-      chinaIPPrefixes[Math.floor(Math.random() * chinaIPPrefixes.length)]
+  cookieObjToString(cookie) {
+    // 优化：使用预绑定的keys函数和for循环
+    const cookieKeys = keys(cookie)
+    const result = []
+
+    // 优化：使用for循环和预分配数组
+    for (let i = 0, len = cookieKeys.length; i < len; i++) {
+      const key = cookieKeys[i]
+      result[i] = `${encode(key)}=${encode(cookie[key])}`
+    }
+
+    return result.join('; ')
+  },
+
+  getRandom(num) {
+    // 优化：简化随机数生成逻辑
+    // 原逻辑看起来有问题，这里保持原意但优化性能
+    var randomValue = random()
+    var floorValue = floor(randomValue * 9 + 1)
+    var powValue = Math.pow(10, num - 1)
+    var randomNum = floor((randomValue + floorValue) * powValue)
+    return randomNum
+  },
+
+  generateRandomChineseIP() {
+    // 优化：使用预绑定的函数和常量
+    const randomPrefix = chinaIPPrefixes[floor(random() * prefixesLength)]
     return `${randomPrefix}.${generateIPSegment()}.${generateIPSegment()}`
   },
+  // 生成chainId的函数
+  generateChainId(cookie) {
+    const version = 'v1'
+    const randomNum = Math.floor(Math.random() * 1e6)
+    const deviceId =
+      getCookieValue(cookie, 'sDeviceId') || 'unknown-' + randomNum
+    const platform = 'web'
+    const action = 'login'
+    const timestamp = Date.now()
+
+    return `${version}_${deviceId}_${platform}_${action}_${timestamp}`
+  },
+
+  generateDeviceId() {
+    const hexChars = '0123456789ABCDEF'
+    const chars = []
+    for (let i = 0; i < 52; i++) {
+      const randomIndex = Math.floor(Math.random() * hexChars.length)
+      chars.push(hexChars[randomIndex])
+    }
+    return chars.join('')
+  },
 }
 
-// 生成一个随机整数
+// 优化：预先绑定函数
 function getRandomInt(min, max) {
-  return Math.floor(Math.random() * (max - min + 1)) + min
+  // 优化：简化计算
+  return floor(random() * (max - min + 1)) + min
 }
 
-// 生成一个随机IP地址段
+// 优化：预先绑定generateIPSegment函数引用
 function generateIPSegment() {
+  // 优化：内联常量
   return getRandomInt(1, 255)
 }
+
+// 进一步优化版本（如果需要更高性能）：
+/*
+const cookieToJsonOptimized = (function() {
+  // 预编译trim函数
+  const trim = String.prototype.trim
+  
+  return function(cookie) {
+    if (!cookie) return {}
+    
+    const cookieArr = cookie.split(';')
+    const obj = {}
+    
+    for (let i = 0, len = cookieArr.length; i < len; i++) {
+      const item = cookieArr[i]
+      const eqIndex = item.indexOf('=')
+      
+      if (eqIndex > 0 && eqIndex < item.length - 1) {
+        const key = trim.call(item.substring(0, eqIndex))
+        const value = trim.call(item.substring(eqIndex + 1))
+        obj[key] = value
+      }
+    }
+    return obj
+  }
+})()
+*/
+
+// 用于从cookie字符串中获取指定值的辅助函数
+function getCookieValue(cookieStr, name) {
+  if (!cookieStr) return ''
+
+  const cookies = '; ' + cookieStr
+  const parts = cookies.split('; ' + name + '=')
+  if (parts.length === 2) return parts.pop().split(';').shift()
+  return ''
+}