Added the dependencies.

node_modules/utf-8-validate/LICENSE

@@ -0,0 +1,30 @@
+This project is licensed for use as follows:
+
+"""
+Copyright (c) 2011 Einar Otto Stangvik <einaros@gmail.com> (http://2x.io)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+"""
+
+This license applies to parts originating from
+https://www.cl.cam.ac.uk/~mgk25/ucs/utf8_check.c:
+
+"""
+Markus Kuhn <http://www.cl.cam.ac.uk/~mgk25/> -- 2005-03-30
+License: http://www.cl.cam.ac.uk/~mgk25/short-license.html
+"""

node_modules/utf-8-validate/README.md

@@ -0,0 +1,50 @@
+# utf-8-validate
+
+[![Version npm](https://img.shields.io/npm/v/utf-8-validate.svg?logo=npm)](https://www.npmjs.com/package/utf-8-validate)
+[![Linux/macOS/Windows Build](https://img.shields.io/github/workflow/status/websockets/utf-8-validate/CI/master?label=build&logo=github)](https://github.com/websockets/utf-8-validate/actions?query=workflow%3ACI+branch%3Amaster)
+
+Check if a buffer contains valid UTF-8 encoded text.
+
+## Installation
+
+```
+npm install utf-8-validate --save-optional
+```
+
+The `--save-optional` flag tells npm to save the package in your package.json
+under the
+[`optionalDependencies`](https://docs.npmjs.com/files/package.json#optionaldependencies)
+key.
+
+## API
+
+The module exports a single function which takes one argument.
+
+### `isValidUTF8(buffer)`
+
+Checks whether a buffer contains valid UTF-8.
+
+#### Arguments
+
+- `buffer` - The buffer to check.
+
+#### Return value
+
+`true` if the buffer contains only correct UTF-8, else `false`.
+
+#### Example
+
+```js
+'use strict';
+
+const isValidUTF8 = require('utf-8-validate');
+
+const buf = Buffer.from([0xf0, 0x90, 0x80, 0x80]);
+
+console.log(isValidUTF8(buf));
+// => true
+```
+
+## License
+
+[MIT](LICENSE)

node_modules/utf-8-validate/binding.gyp

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+{
+  'targets': [
+    {
+      'target_name': 'validation',
+      'sources': ['src/validation.c'],
+      'cflags': ['-std=c99'],
+      'conditions': [
+        ["OS=='mac'", {
+          'xcode_settings': {
+            'MACOSX_DEPLOYMENT_TARGET': '10.7',
+            'OTHER_CFLAGS': ['-arch x86_64', '-arch arm64'],
+            'OTHER_LDFLAGS': ['-arch x86_64', '-arch arm64']
+          }
+        }]
+      ]
+    }
+  ]
+}

node_modules/utf-8-validate/fallback.js

@@ -0,0 +1,62 @@
+'use strict';
+
+/**
+ * Checks if a given buffer contains only correct UTF-8.
+ * Ported from https://www.cl.cam.ac.uk/%7Emgk25/ucs/utf8_check.c by
+ * Markus Kuhn.
+ *
+ * @param {Buffer} buf The buffer to check
+ * @return {Boolean} `true` if `buf` contains only correct UTF-8, else `false`
+ * @public
+ */
+function isValidUTF8(buf) {
+  const len = buf.length;
+  let i = 0;
+
+  while (i < len) {
+    if ((buf[i] & 0x80) === 0x00) {  // 0xxxxxxx
+      i++;
+    } else if ((buf[i] & 0xe0) === 0xc0) {  // 110xxxxx 10xxxxxx
+      if (
+        i + 1 === len ||
+        (buf[i + 1] & 0xc0) !== 0x80 ||
+        (buf[i] & 0xfe) === 0xc0  // overlong
+      ) {
+        return false;
+      }
+
+      i += 2;
+    } else if ((buf[i] & 0xf0) === 0xe0) {  // 1110xxxx 10xxxxxx 10xxxxxx
+      if (
+        i + 2 >= len ||
+        (buf[i + 1] & 0xc0) !== 0x80 ||
+        (buf[i + 2] & 0xc0) !== 0x80 ||
+        buf[i] === 0xe0 && (buf[i + 1] & 0xe0) === 0x80 ||  // overlong
+        buf[i] === 0xed && (buf[i + 1] & 0xe0) === 0xa0  // surrogate (U+D800 - U+DFFF)
+      ) {
+        return false;
+      }
+
+      i += 3;
+    } else if ((buf[i] & 0xf8) === 0xf0) {  // 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx
+      if (
+        i + 3 >= len ||
+        (buf[i + 1] & 0xc0) !== 0x80 ||
+        (buf[i + 2] & 0xc0) !== 0x80 ||
+        (buf[i + 3] & 0xc0) !== 0x80 ||
+        buf[i] === 0xf0 && (buf[i + 1] & 0xf0) === 0x80 ||  // overlong
+        buf[i] === 0xf4 && buf[i + 1] > 0x8f || buf[i] > 0xf4  // > U+10FFFF
+      ) {
+        return false;
+      }
+
+      i += 4;
+    } else {
+      return false;
+    }
+  }
+
+  return true;
+}
+
+module.exports = isValidUTF8;

node_modules/utf-8-validate/index.js

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+'use strict';
+
+try {
+  module.exports = require('node-gyp-build')(__dirname);
+} catch (e) {
+  module.exports = require('./fallback');
+}

node_modules/utf-8-validate/package.json

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+{
+  "name": "utf-8-validate",
+  "version": "5.0.10",
+  "description": "Check if a buffer contains valid UTF-8",
+  "main": "index.js",
+  "engines": {
+    "node": ">=6.14.2"
+  },
+  "scripts": {
+    "install": "node-gyp-build",
+    "prebuild": "prebuildify --napi --strip --target=14.0.0",
+    "prebuild-darwin-x64+arm64": "prebuildify --arch x64+arm64 --napi --strip --target=14.0.0",
+    "test": "mocha"
+  },
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/websockets/utf-8-validate"
+  },
+  "keywords": [
+    "utf-8-validate"
+  ],
+  "author": "Einar Otto Stangvik <einaros@gmail.com> (http://2x.io)",
+  "license": "MIT",
+  "bugs": {
+    "url": "https://github.com/websockets/utf-8-validate/issues"
+  },
+  "homepage": "https://github.com/websockets/utf-8-validate",
+  "dependencies": {
+    "node-gyp-build": "^4.3.0"
+  },
+  "devDependencies": {
+    "mocha": "^10.0.0",
+    "node-gyp": "^9.1.0",
+    "prebuildify": "^5.0.0"
+  }
+}

node_modules/utf-8-validate/src/validation.c

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+#define NAPI_VERSION 1
+#include <assert.h>
+#include <string.h>
+#include <node_api.h>
+
+napi_value IsValidUTF8(napi_env env, napi_callback_info info) {
+  napi_status status;
+  size_t argc = 1;
+  napi_value argv[1];
+
+  status = napi_get_cb_info(env, info, &argc, argv, NULL, NULL);
+  assert(status == napi_ok);
+
+  uint8_t *buf;
+  size_t len;
+
+  status = napi_get_buffer_info(env, argv[0], (void **)&buf, &len);
+  assert(status == napi_ok);
+
+  size_t i = 0;
+
+  //
+  // This code has been taken from utf8_check.c which was developed by
+  // Markus Kuhn <http://www.cl.cam.ac.uk/~mgk25/>.
+  //
+  // For original code / licensing please refer to
+  // https://www.cl.cam.ac.uk/%7Emgk25/ucs/utf8_check.c
+  //
+  while (i < len) {
+    size_t j = i + 8;
+
+    if (j <= len) {
+      //
+      // Read 8 bytes and check if they are ASCII.
+      //
+      uint64_t chunk;
+      memcpy(&chunk, buf + i, 8);
+
+      if ((chunk & 0x8080808080808080) == 0x00) {
+        i = j;
+        continue;
+      }
+    }
+
+    while ((buf[i] & 0x80) == 0x00) { // 0xxxxxxx
+      if (++i == len) {
+        goto exit;
+      }
+    }
+
+    if ((buf[i] & 0xe0) == 0xc0) {  // 110xxxxx 10xxxxxx
+      if (
+        i + 1 == len ||
+        (buf[i + 1] & 0xc0) != 0x80 ||
+        (buf[i] & 0xfe) == 0xc0  // overlong
+      ) {
+        break;
+      }
+
+      i += 2;
+    } else if ((buf[i] & 0xf0) == 0xe0) {  // 1110xxxx 10xxxxxx 10xxxxxx
+      if (
+        i + 2 >= len ||
+        (buf[i + 1] & 0xc0) != 0x80 ||
+        (buf[i + 2] & 0xc0) != 0x80 ||
+        (buf[i] == 0xe0 && (buf[i + 1] & 0xe0) == 0x80) ||  // overlong
+        (buf[i] == 0xed && (buf[i + 1] & 0xe0) == 0xa0)  // surrogate (U+D800 - U+DFFF)
+      ) {
+        break;
+      }
+
+      i += 3;
+    } else if ((buf[i] & 0xf8) == 0xf0) {  // 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx
+      if (
+        i + 3 >= len ||
+        (buf[i + 1] & 0xc0) != 0x80 ||
+        (buf[i + 2] & 0xc0) != 0x80 ||
+        (buf[i + 3] & 0xc0) != 0x80 ||
+        (buf[i] == 0xf0 && (buf[i + 1] & 0xf0) == 0x80) ||  // overlong
+        (buf[i] == 0xf4 && buf[i + 1] > 0x8f) || buf[i] > 0xf4  // > U+10FFFF
+      ) {
+        break;
+      }
+
+      i += 4;
+    } else {
+      break;
+    }
+  }
+
+exit:;
+  napi_value result;
+  status = napi_get_boolean(env, i == len, &result);
+  assert(status == napi_ok);
+
+  return result;
+}
+
+napi_value Init(napi_env env, napi_value exports) {
+  napi_status status;
+  napi_value isValidUTF8;
+
+  status = napi_create_function(env, NULL, 0, IsValidUTF8, NULL, &isValidUTF8);
+  assert(status == napi_ok);
+
+  return isValidUTF8;
+}
+
+NAPI_MODULE(NODE_GYP_MODULE_NAME, Init)