Add default --prepended-code option, bump version.

Author: kirk-sayre-work

_run.js

@@ -4,6 +4,13 @@ const path = require("path");
 const walk = require("walk-sync");
 const argv = require("./argv.js").run;
 
+// Just printing where to find default boilerplate code?
+if (argv["prepended-code"] == "show-default") {
+    const defaultBP = __dirname + "/boilerplate.js"
+    console.log(defaultBP);
+    process.exit(0);
+}
+
 function list_delete(arr, item) {
     for( var i = 0; i < arr.length; i++){ 
 

analyze.js

@@ -786,7 +786,12 @@ if (argv["prepended-code"]) {
     var files = []
 
     // get all the files in the directory and sort them alphebetically
-    if (fs.lstatSync(argv["prepended-code"]).isDirectory()) {
+    var isDir = false;
+    try {
+        isDir = fs.lstatSync(argv["prepended-code"]).isDirectory();
+    }
+    catch (e) {}
+    if (isDir) {
 
         dir_files = fs.readdirSync(argv["prepended-code"]);
         for (var i = 0; i < dir_files.length; i++) {
@@ -796,7 +801,15 @@ if (argv["prepended-code"]) {
         // make sure we're adding mock code in the right order
         files.sort()
     } else {
-        files.push(argv["prepended-code"])
+        
+        // Use default boilerplate code?
+        if (argv["prepended-code"] == "default") {
+            const defaultBP = __dirname + "/boilerplate.js";
+            files.push(defaultBP);
+        }
+        else {
+            files.push(argv["prepended-code"]);
+        }
     }
 
     for (var i = 0; i < files.length; i++) {

flags.json

@@ -65,7 +65,7 @@
         {
             "name": "prepended-code",
             "type": "String",
-            "description": "Input file or directory containing code that should be prepended to the JS file(s) we're analyzing. If directory is given,  prepends contents of all files in the directory in "
+            "description": "Input file or directory containing code that should be prepended to the JS file(s) we're analyzing. If directory is given,  prepends contents of all files in the directory. If 'default' is given use the default boilerplate.js that comes with box-js. if 'show-default' is given just print path of boilerplate.js and exit (useful if you want to copy and modify default boilerplate code)."
         },
         {
             "name": "fake-script-engine",

package-lock.json

@@ -1,6 +1,6 @@
 {
     "name": "box-js",
-    "version": "1.9.25",
+    "version": "1.9.26",
     "description": "A tool for studying JavaScript malware.",
     "dependencies": {
         "acorn": ">=8.8.0",