From dc27b0e3ccbae29c8c0346f799d05e001a695193 Mon Sep 17 00:00:00 2001
From: neverland <chenjiahan.jait@bytedance.com>
Date: Thu, 23 Oct 2025 10:36:50 +0800
Subject: [PATCH] refactor(assets-middleware): remove unused utility functions

---
 .../server/assets-middleware/escapeHtml.ts    | 45 -------------------
 .../src/server/assets-middleware/memorize.ts  | 30 -------------
 .../server/assets-middleware/middleware.ts    |  8 ++--
 3 files changed, 3 insertions(+), 80 deletions(-)
 delete mode 100644 packages/core/src/server/assets-middleware/escapeHtml.ts
 delete mode 100644 packages/core/src/server/assets-middleware/memorize.ts

diff --git a/packages/core/src/server/assets-middleware/escapeHtml.ts b/packages/core/src/server/assets-middleware/escapeHtml.ts
deleted file mode 100644
index a44473ebf3..0000000000
--- a/packages/core/src/server/assets-middleware/escapeHtml.ts
+++ /dev/null
@@ -1,45 +0,0 @@
-const matchHtmlRegExp = /["'&<>]/;
-
-export function escapeHtml(input: string): string {
-  const match = matchHtmlRegExp.exec(input);
-
-  if (!match) {
-    return input;
-  }
-
-  let htmlEntity: string | undefined;
-  let html = '';
-  let index = 0;
-  let lastIndex = 0;
-
-  for ({ index } = match; index < input.length; index++) {
-    switch (input.charCodeAt(index)) {
-      case 34:
-        htmlEntity = '&quot' + ';';
-        break;
-      case 38:
-        htmlEntity = '&amp' + ';';
-        break;
-      case 39:
-        htmlEntity = '&#39' + ';';
-        break;
-      case 60:
-        htmlEntity = '&lt' + ';';
-        break;
-      case 62:
-        htmlEntity = '&gt' + ';';
-        break;
-      default:
-        continue;
-    }
-
-    if (lastIndex !== index) {
-      html += input.substring(lastIndex, index);
-    }
-
-    lastIndex = index + 1;
-    html += htmlEntity;
-  }
-
-  return lastIndex !== index ? html + input.substring(lastIndex, index) : html;
-}
diff --git a/packages/core/src/server/assets-middleware/memorize.ts b/packages/core/src/server/assets-middleware/memorize.ts
deleted file mode 100644
index dab1c827f1..0000000000
--- a/packages/core/src/server/assets-middleware/memorize.ts
+++ /dev/null
@@ -1,30 +0,0 @@
-export function memorize<T>(
-  fn: (...args: any[]) => T,
-  {
-    cache = new Map<string, { data: T }>(),
-  }: { cache?: Map<string, { data: T }> } = {},
-  callback?: (value: T) => T,
-): (...args: [string, ...any[]]) => T {
-  const memoized = (...arguments_: [string, ...any[]]): T => {
-    const [key] = arguments_;
-    const cacheItem = cache.get(key);
-
-    if (cacheItem) {
-      return cacheItem.data;
-    }
-
-    let result: T = fn.apply(undefined, arguments_);
-
-    if (callback) {
-      result = callback(result);
-    }
-
-    cache.set(key, {
-      data: result,
-    });
-
-    return result;
-  };
-
-  return memoized;
-}
diff --git a/packages/core/src/server/assets-middleware/middleware.ts b/packages/core/src/server/assets-middleware/middleware.ts
index 6559b9cd58..db7bf5b54f 100644
--- a/packages/core/src/server/assets-middleware/middleware.ts
+++ b/packages/core/src/server/assets-middleware/middleware.ts
@@ -7,10 +7,8 @@ import { requireCompiledPackage } from '../../helpers/vendors';
 import { logger } from '../../logger';
 import type { InternalContext, RequestHandler } from '../../types';
 import { HttpCode } from '../helper';
-import { escapeHtml } from './escapeHtml';
 import { getFileFromUrl } from './getFileFromUrl';
 import type { OutputFileSystem } from './index';
-import { memorize } from './memorize';
 import { parseTokenList } from './parseTokenList';
 
 function getEtag(stat: FSStats): string {
@@ -94,12 +92,12 @@ function destroyStream(stream: ReadStream, suppress: boolean): void {
   }
 }
 
-const parseRangeHeaders = memorize((value: string): RangeResult | Ranges => {
+const parseRangeHeaders = (value: string): RangeResult | Ranges => {
   const [len, rangeHeader] = value.split('|');
   return rangeParser(Number(len), rangeHeader, {
     combine: true,
   });
-});
+};
 
 type SendErrorOptions = {
   headers?: Record<string, number | string | string[] | undefined>;
@@ -123,7 +121,7 @@ function sendError(
 
   const content = errorMessages[code];
   const document = Buffer.from(
-    `<!DOCTYPE html>\n<html lang="en">\n<head>\n<meta charset="utf-8">\n<title>Error</title>\n</head>\n<body>\n<pre>${escapeHtml(content)}</pre>\n</body>\n</html>`,
+    `<!DOCTYPE html>\n<html lang="en">\n<head>\n<meta charset="utf-8">\n<title>Error</title>\n</head>\n<body>\n<pre>${content}</pre>\n</body>\n</html>`,
     'utf-8',
   );