[#94] Backend

https://project.mdnd-it.cc/work_packages/94
2025-08-23 04:25:28 +02:00
parent 725516ad6c
commit 19cfa031d0
25823 changed files with 1095587 additions and 2801760 deletions
@@ -17,20 +17,12 @@ var escapeHtml = require('escape-html')
 var onFinished = require('on-finished')
 var parseUrl = require('parseurl')
 var statuses = require('statuses')
-var unpipe = require('unpipe')

 /**
 * Module variables.
 * @private
 */

-var DOUBLE_SPACE_REGEXP = /\x20{2}/g
-var NEWLINE_REGEXP = /\n/g
-
-/* istanbul ignore next */
-var defer = typeof setImmediate === 'function'
-  ? setImmediate
-  : function (fn) { process.nextTick(fn.bind.apply(fn, arguments)) }
 var isFinished = onFinished.isFinished

 /**
@@ -42,8 +34,8 @@ var isFinished = onFinished.isFinished

 function createHtmlDocument (message) {
  var body = escapeHtml(message)
-    .replace(NEWLINE_REGEXP, '<br>')
-    .replace(DOUBLE_SPACE_REGEXP, ' &nbsp;')
+    .replaceAll('\n', '<br>')
+    .replaceAll('  ', ' &nbsp;')

  return '<!DOCTYPE html>\n' +
    '<html lang="en">\n' +
@@ -89,7 +81,7 @@ function finalhandler (req, res, options) {
    var status

    // ignore 404 on in-flight response
-    if (!err && headersSent(res)) {
+    if (!err && res.headersSent) {
      debug('cannot 404 after headers sent')
      return
    }
@@ -119,11 +111,11 @@ function finalhandler (req, res, options) {

    // schedule onerror callback
    if (err && onerror) {
-      defer(onerror, err, req, res)
+      setImmediate(onerror, err, req, res)
    }

    // cannot actually respond
-    if (headersSent(res)) {
+    if (res.headersSent) {
      debug('cannot %d after headers sent', status)
      if (req.socket) {
        req.socket.destroy()
@@ -149,15 +141,7 @@ function getErrorHeaders (err) {
    return undefined
  }

-  var headers = Object.create(null)
-  var keys = Object.keys(err.headers)
-
-  for (var i = 0; i < keys.length; i++) {
-    var key = keys[i]
-    headers[key] = err.headers[key]
-  }
-
-  return headers
+  return { ...err.headers }
 }

 /**
@@ -246,20 +230,6 @@ function getResponseStatusCode (res) {
  return status
 }

-/**
- * Determine if the response headers have been sent.
- *
- * @param {object} res
- * @returns {boolean}
- * @private
- */
-
-function headersSent (res) {
-  return typeof res.headersSent !== 'boolean'
-    ? Boolean(res._header)
-    : res.headersSent
-}
-
 /**
 * Send response.
 *
@@ -289,7 +259,9 @@ function send (req, res, status, headers, message) {
    res.removeHeader('Content-Range')

    // response headers
-    setHeaders(res, headers)
+    for (const [key, value] of Object.entries(headers ?? {})) {
+      res.setHeader(key, value)
+    }

    // security headers
    res.setHeader('Content-Security-Policy', "default-src 'none'")
@@ -313,29 +285,9 @@ function send (req, res, status, headers, message) {
  }

  // unpipe everything from the request
-  unpipe(req)
+  req.unpipe()

  // flush the request
  onFinished(req, write)
  req.resume()
 }
-
-/**
- * Set response headers from an object.
- *
- * @param {OutgoingMessage} res
- * @param {object} headers
- * @private
- */
-
-function setHeaders (res, headers) {
-  if (!headers) {
-    return
-  }
-
-  var keys = Object.keys(headers)
-  for (var i = 0; i < keys.length; i++) {
-    var key = keys[i]
-    res.setHeader(key, headers[key])
-  }
-}