冻结运行环境内置的对象

android/app/src/main/assets/script/user-api-preload.js

@@ -1,3 +1,4 @@
+'use strict'
 
 globalThis.lx_setup = (key, id, name, description, rawScript) => {
   delete globalThis.setup
@@ -37,7 +38,7 @@ globalThis.lx_setup = (key, id, name, description, rawScript) => {
 
   const callbacks = new Map()
   let timeoutId = 0
-  const setTimeout = (callback, timeout = 0, ...params) => {
+  const _setTimeout = (callback, timeout = 0, ...params) => {
     if (typeof timeout !== 'number' || timeout < 0) throw new Error('timeout required number')
     if (timeoutId > 90000000000) throw new Error('max timeout')
     const id = timeoutId++
@@ -48,7 +49,7 @@ globalThis.lx_setup = (key, id, name, description, rawScript) => {
     set_timeout(id, parseInt(timeout))
     return id
   }
-  const clearTimeout = (id) => {
+  const _clearTimeout = (id) => {
     const tagret = callbacks.get(id)
     if (!tagret) return
     callbacks.delete(id)
@@ -113,11 +114,11 @@ globalThis.lx_setup = (key, id, name, description, rawScript) => {
     // 'utils.zlib.inflate': 'utils.zlib.inflate',
     // 'utils.zlib.deflate': 'utils.zlib.deflate',
   }
-  const EVENT_NAMES = Object.freeze({
+  const EVENT_NAMES = {
     request: 'request',
     inited: 'inited',
     updateAlert: 'updateAlert',
-  })
+  }
   const eventNames = Object.values(EVENT_NAMES)
   const events = {
     request: null,
@@ -299,7 +300,7 @@ globalThis.lx_setup = (key, id, name, description, rawScript) => {
     else if (Array.isArray(data) || ArrayBuffer.isView(data)) return utils.buffer.bufToString(data, 'base64')
     throw new Error('data type error: ' + typeof data + ' raw data: ' + data)
   }
-  const utils = Object.freeze({
+  const utils = {
     crypto: {
       aesEncrypt(buffer, mode, key, iv) {
         // console.log('aesEncrypt', buffer, mode, key, iv)
@@ -391,12 +392,10 @@ globalThis.lx_setup = (key, id, name, description, rawScript) => {
     //       })
     //     })
     //   },
-    // },
+    // }),
-  })
+  }
-  Object.defineProperty(globalThis, 'lx', {
+
-    configurable: false,
+  globalThis.lx = {
-    writable: false,
-    value: Object.freeze({
     EVENT_NAMES,
     request(url, { method = 'get', timeout, headers, body, form, formData, binary }, callback) {
       let options = { headers, binary: binary === true }
@@ -461,35 +460,18 @@ globalThis.lx_setup = (key, id, name, description, rawScript) => {
       return Promise.resolve()
     },
     utils,
-      currentScriptInfo: Object.freeze({
+    currentScriptInfo: {
       name,
       description,
-      }),
+    },
     version: '1.0.0',
     env: 'mobile',
-    }),
+  }
-  })
 
-
+  globalThis.setTimeout = _setTimeout
-  Object.defineProperty(globalThis, 'setTimeout', {
+  globalThis.clearTimeout = _clearTimeout
-    configurable: false,
+  globalThis.window = globalThis
-    writable: false,
+  globalThis.document = {
-    value: setTimeout,
-  })
-  Object.defineProperty(globalThis, 'clearTimeout', {
-    configurable: false,
-    writable: false,
-    value: clearTimeout,
-  })
-  Object.defineProperty(globalThis, 'window', {
-    configurable: false,
-    writable: false,
-    value: globalThis,
-  })
-  Object.defineProperty(globalThis, 'document', {
-    configurable: false,
-    writable: false,
-    value: Object.freeze({
     getElementsByTagName(name) {
       if (name == 'script') {
         return [
@@ -500,8 +482,40 @@ globalThis.lx_setup = (key, id, name, description, rawScript) => {
       }
       return null
     },
-    }),
+  }
-  })
+
+  const _toString = Function.prototype.toString
+  // eslint-disable-next-line no-extend-native
+  Function.prototype.toString = function() {
+    return Object.getOwnPropertyDescriptors(this).name.configurable
+      ? _toString.apply(this)
+      : `function ${this.name}() { [native code] }`
+  }
+
+  const excludes = [
+    Function.prototype.toString,
+    Function.prototype.toLocaleString,
+    Object.prototype.toString,
+  ]
+  const freezeObject = (obj, freezedObj = new Set()) => {
+    if (obj == null) return
+    switch (typeof obj) {
+      case 'object':
+      case 'function':
+        if (freezedObj.has(obj)) return
+        // Object.freeze(obj)
+        freezedObj.add(obj)
+        for (const [name, { ...config }] of Object.entries(Object.getOwnPropertyDescriptors(obj))) {
+          if (!excludes.includes(config.value)) {
+            if (config.writable) config.writable = false
+            if (config.configurable) config.configurable = false
+            Object.defineProperty(obj, name, config)
+          }
+          freezeObject(config.value, freezedObj)
+        }
+    }
+  }
+  freezeObject(globalThis)
 
   console.log('Preload finished.')
 }