[Init] Initial commit - NetMesh terminal manager

electron/plugins/paths.cjs

@@ -0,0 +1,50 @@
+"use strict";
+
+const path = require("node:path");
+
+function createPluginPaths(userDataDirectory) {
+  if (typeof userDataDirectory !== "string" || !path.isAbsolute(userDataDirectory)) {
+    throw new TypeError("Plugin userData directory must be absolute");
+  }
+  const root = path.join(userDataDirectory, "plugins");
+  return Object.freeze({
+    root,
+    database: path.join(root, "plugins.sqlite"),
+    packages: path.join(root, "packages"),
+    staging: path.join(root, "staging"),
+    data: path.join(root, "data"),
+    logs: path.join(root, "logs"),
+    dev: path.join(root, "dev"),
+  });
+}
+
+function assertPluginStorageSegment(value, kind) {
+  if (typeof value !== "string" || value.length === 0 || value.length > 128) {
+    throw new TypeError(`Invalid plugin ${kind}`);
+  }
+  if (value === "." || value === ".." || /[\\/\0]/u.test(value)) {
+    throw new TypeError(`Unsafe plugin ${kind}`);
+  }
+  return value;
+}
+
+function resolveInstalledVersionDirectory(paths, pluginId, version) {
+  return path.join(
+    paths.packages,
+    assertPluginStorageSegment(pluginId, "ID"),
+    assertPluginStorageSegment(version, "version"),
+  );
+}
+
+function isPathInside(parentPath, candidatePath) {
+  const relative = path.relative(path.resolve(parentPath), path.resolve(candidatePath));
+  return relative === ""
+    || (!path.isAbsolute(relative) && relative !== ".." && !relative.startsWith(`..${path.sep}`));
+}
+
+module.exports = {
+  assertPluginStorageSegment,
+  createPluginPaths,
+  isPathInside,
+  resolveInstalledVersionDirectory,
+};