Fix npm test suite

Related commits:
- https://github.com/gorhill/uBlock/commit/02cba63331
- https://github.com/gorhill/uBlock/commit/41693407b2

.gitignore

@@ -1,5 +1,6 @@
 *.bak
 *.pem
 __pycache__/
+node_modules/
 /dist/build/
 /tmp/

platform/nodejs/.eslintrc.json

@@ -0,0 +1,38 @@
+{
+    "root": true,
+    "env": {
+        "es2021": true,
+        "node": true
+    },
+    "extends": "eslint:recommended",
+    "parserOptions": {
+        "ecmaVersion": 12,
+        "sourceType": "module"
+    },
+    "rules": {
+        "eqeqeq": [ "warn", "always" ],
+        "indent": [
+          "warn",
+          4,
+          {
+            "ArrayExpression": "first",
+            "CallExpression": { "arguments": "first" },
+            "MemberExpression": "off",
+            "ObjectExpression": "off",
+            "ignoreComments": true,
+            "ignoredNodes": [
+              "AssignmentExpression:has(Literal)"
+            ]
+          }
+        ],
+        "getter-return": "off",
+        "no-control-regex": "off",
+        "no-empty": [ "error", { "allowEmptyCatch": true } ],
+        "no-promise-executor-return": [ "error" ],
+        "no-template-curly-in-string": [ "error" ],
+        "no-unreachable-loop": [ "error" ],
+        "no-useless-backreference": [ "error" ],
+        "no-useless-escape": "off",
+        "require-atomic-updates": [ "warn" ]
+    }
+}

platform/nodejs/index.js

@@ -19,31 +19,40 @@
     Home: https://github.com/gorhill/uBlock
 */
 
-/* globals WebAssembly */
-
-'use strict';
-
-/******************************************************************************/
-
-import { createRequire } from 'module';
-
-import { readFileSync } from 'fs';
-import { dirname, resolve } from 'path';
-import { domainToASCII, fileURLToPath } from 'url';
-
-const __dirname = dirname(fileURLToPath(import.meta.url));
-
-import publicSuffixList from './lib/publicsuffixlist/publicsuffixlist.js';
-
-import snfe from './js/static-net-filtering.js';
-import { FilteringContext } from './js/filtering-context.js';
-import { LineIterator } from './js/text-utils.js';
+import * as s14e from './js/s14e-serializer.js';
 import * as sfp from './js/static-filtering-parser.js';
 
 import {
     CompiledListReader,
     CompiledListWriter,
 } from './js/static-filtering-io.js';
+import {
+    TextDecoder,
+    TextEncoder,
+} from 'util';
+import {
+    dirname,
+    resolve
+} from 'path';
+import {
+    domainToASCII,
+    fileURLToPath
+} from 'url';
+
+import { FilteringContext } from './js/filtering-context.js';
+import { LineIterator } from './js/text-utils.js';
+import { createRequire } from 'module';
+import publicSuffixList from './lib/publicsuffixlist/publicsuffixlist.js';
+import { readFileSync } from 'fs';
+import snfe from './js/static-net-filtering.js';
+
+/******************************************************************************/
+
+const __dirname = dirname(fileURLToPath(import.meta.url));
+
+// https://stackoverflow.com/questions/69187442/const-utf8encoder-new-textencoder-in-node-js
+globalThis.TextDecoder = TextDecoder;
+globalThis.TextEncoder = TextEncoder;
 
 /******************************************************************************/
 
@@ -241,11 +250,13 @@ class StaticNetFilteringEngine {
     }
 
     serialize() {
-        return snfe.serialize();
+        const data = snfe.serialize();
+        return s14e.serialize(data, { compress: true });
     }
 
     deserialize(serialized) {
-        return snfe.unserialize(serialized);
+        const data = s14e.deserialize(serialized);
+        return snfe.unserialize(data);
     }
 
     static async create({ noPSL = false } = {}) {

platform/npm/package.json

@@ -31,7 +31,7 @@
   },
   "homepage": "https://github.com/gorhill/uBlock#readme",
   "engines": {
-    "node": ">=14.0.0",
+    "node": ">=18.0.0",
     "npm": ">=6.14.4"
   },
   "devDependencies": {

src/js/s14e-serializer.js

@@ -249,8 +249,29 @@ const toArrayBufferViewConstructor = {
 
 /******************************************************************************/
 
-const textDecoder = new TextDecoder();
-const textEncoder = new TextEncoder();
+const textCodec = {
+    decoder: null,
+    encoder: null,
+    decode(...args) {
+        if ( this.decoder === null ) {
+            this.decoder = new globalThis.TextDecoder();
+        }
+        return this.decoder.decode(...args);
+    },
+    encode(...args) {
+        if ( this.encoder === null ) {
+            this.encoder = new globalThis.TextEncoder();
+        }
+        return this.encoder.encode(...args);
+    },
+    encodeInto(...args) {
+        if ( this.encoder === null ) {
+            this.encoder = new globalThis.TextEncoder();
+        }
+        return this.encoder.encodeInto(...args);
+    },
+};
+
 const isInteger = Number.isInteger;
 
 const writeRefs = new Map();
@@ -269,7 +290,7 @@ const uint8InputFromAsciiStr = s => {
     if ( uint8Input === null || uint8Input.length < s.length ) {
         uint8Input = new Uint8Array(s.length + 0x03FF & ~0x03FF);
     }
-    textEncoder.encodeInto(s, uint8Input);
+    textCodec.encodeInto(s, uint8Input);
     return uint8Input;
 };
 
@@ -407,7 +428,7 @@ const denseArrayBufferToStr = (arrbuf, details) => {
             }
         }
     }
-    return textDecoder.decode(output);
+    return textCodec.decode(output);
 };
 
 const BASE88_POW1 = NUMSAFECHARS;
@@ -489,7 +510,7 @@ const sparseArrayBufferToStr = (arrbuf, details) => {
             uint8out[j++] = SEPARATORCHARCODE;
         }
     }
-    return textDecoder.decode(uint8out);
+    return textCodec.decode(uint8out);
 };
 
 const sparseArrayBufferFromStr = (sparseStr, arrbuf) => {
@@ -1060,7 +1081,7 @@ export const serialize = (data, options = {}) => {
     writeBuffer.length = 0;
     if ( shouldCompress(s, options) === false ) { return s; }
     const lz4Util = new LZ4BlockJS();
-    const uint8ArrayBefore = textEncoder.encode(s);
+    const uint8ArrayBefore = textCodec.encode(s);
     const uint8ArrayAfter = lz4Util.encode(uint8ArrayBefore, 0);
     const lz4 = {
         size: uint8ArrayBefore.length,
@@ -1087,7 +1108,7 @@ export const deserialize = s => {
         readStr = '';
         const lz4Util = new LZ4BlockJS();
         const uint8ArrayAfter = lz4Util.decode(lz4.data, 0, lz4.size);
-        s = textDecoder.decode(new Uint8Array(uint8ArrayAfter));
+        s = textCodec.decode(new Uint8Array(uint8ArrayAfter));
     }
     if ( s.startsWith(MAGICPREFIX) === false ) { return; }
     refCounter = 1;

tools/make-nodejs.sh

@@ -14,6 +14,7 @@ cp src/js/filtering-context.js       $DES/js
 cp src/js/hnswitches.js              $DES/js
 cp src/js/hntrie.js                  $DES/js
 cp src/js/redirect-resources.js      $DES/js
+cp src/js/s14e-serializer.js         $DES/js
 cp src/js/static-dnr-filtering.js    $DES/js
 cp src/js/static-filtering-parser.js $DES/js
 cp src/js/static-net-filtering.js    $DES/js