Adds shell command allowlist (#68)

* Wire through passthrough commands

* Add default passthrough commands

* Clean up config passing to useGeminiStream

packages/server/src/config/config.ts

@@ -9,22 +9,28 @@ import * as fs from 'node:fs';
 import * as path from 'node:path';
 import process from 'node:process';
 
+const DEFAULT_PASSTHROUGH_COMMANDS = ['ls', 'git', 'npm'];
+
 export class Config {
   private apiKey: string;
   private model: string;
   private targetDir: string;
   private debugMode: boolean;
+  private passthroughCommands: string[];
 
   constructor(
     apiKey: string,
     model: string,
     targetDir: string,
     debugMode: boolean,
+    passthroughCommands?: string[],
   ) {
     this.apiKey = apiKey;
     this.model = model;
     this.targetDir = targetDir;
     this.debugMode = debugMode;
+    this.passthroughCommands =
+      passthroughCommands || DEFAULT_PASSTHROUGH_COMMANDS;
   }
 
   getApiKey(): string {
@@ -42,6 +48,10 @@ export class Config {
   getDebugMode(): boolean {
     return this.debugMode;
   }
+
+  getPassthroughCommands(): string[] {
+    return this.passthroughCommands;
+  }
 }
 
 function findEnvFile(startDir: string): string | null {
@@ -72,6 +82,13 @@ export function createServerConfig(
   model: string,
   targetDir: string,
   debugMode: boolean,
+  passthroughCommands?: string[],
 ): Config {
-  return new Config(apiKey, model, path.resolve(targetDir), debugMode);
+  return new Config(
+    apiKey,
+    model,
+    path.resolve(targetDir),
+    debugMode,
+    passthroughCommands,
+  );
 }