fix:Potential ReDoS Vulnerability or Inefficient Regular Expression in Project: Need for Assessment and Mitigation

lib/tools/Config.js

@@ -201,7 +201,7 @@ Config._valid = function(key, value, sch){
   if(scht.length > 1 && type != scht[0] && type == '[object String]'){
     if(scht[0] == '[object Array]') {
       // unfortunately, js does not support lookahead RegExp (/(?<!\\)\s+/) now (until next ver).
-      value = value.split(/([\w\-]+\="[^"]*")|([\w\-]+\='[^']*')|"([^"]*)"|'([^']*)'|\s/)
+      value = value.split(/((?<![\w\-])([\w\-]+\="[^"]*")|(?<![\w\-])([\w\-]+\='[^']*')|"([^"]*)"|'([^']*)'|\s )/)
         .filter(function(v){
           return v && v.trim();
         });

test/interface/redos.mocha.js

@@ -0,0 +1,33 @@
+process.chdir(__dirname)
+
+const config = require('../../lib/tools/Config')
+const { performance } = require('perf_hooks')
+let expect;
+before(async () => {
+  const chai = await import('chai')
+  expect = chai.expect
+})
+
+
+describe('ReDos Test', function () {
+  it('should done in 1 s', function () {
+    // 构造 schema，期望值为数组或者字符串
+    const schemaEntry = {
+      type: ['array', 'string']
+    }
+    // 构造测试用的长字符串
+    const value = "a".repeat(100000) + "="
+
+    const startTime = performance.now()
+    const result = config._valid('dummyKey', value, schemaEntry)
+    const endTime = performance.now()
+    const timeTaken = endTime - startTime
+
+    // 输出匹配结果和耗时（调试用）
+    console.log(`Time taken: ${timeTaken.toFixed(3)} ms`)
+
+
+    // 并断言耗时在合理范围内（比如小于1000毫秒）
+    expect(timeTaken).to.be.lessThan(1000)
+  })
+})

test/unit.sh

@@ -100,5 +100,7 @@ runUnitTest $D/bus.spec.mocha.js
 runUnitTest $D/bus.fork.spec.mocha.js
 runUnitTest $D/utility.mocha.js
 
+runUnitTest $D/redos.mocha.js
+
 echo "============== unit test finished =============="
 cat unit_time