Task 768: .VBS File Format
Task 768: .VBS File Format
1. List of Properties Intrinsic to the .VBS File Format in Its File System Context
The .VBS file format refers to Visual Basic Script files, which are plain text files containing VBScript code, primarily associated with Microsoft Windows environments. This format does not possess a binary structure or specific headers, as it is essentially a text-based scripting format without intrinsic binary properties or magic numbers. Instead, its "properties intrinsic to its file system" are the standard file system metadata attributes maintained by the operating system (e.g., NTFS on Windows). These properties are not unique to .VBS but are applicable to any file; however, they represent the core attributes managed at the file system level for .VBS files.
Based on comprehensive analysis of file format documentation and Windows file system specifications, the key properties include:
- File Name: The name of the file, including the .vbs extension.
- File Path: The full directory path where the file resides.
- File Size: The size of the file in bytes.
- Creation Time: The timestamp when the file was created.
- Last Modification Time: The timestamp when the file was last modified.
- Last Access Time: The timestamp when the file was last accessed.
- File Attributes: Bit flags indicating states such as read-only, hidden, system, archive, compressed, or encrypted.
- Owner: The user or security identifier (SID) that owns the file.
- Permissions (ACLs): Access control lists defining read, write, execute, and other permissions for users and groups.
- MIME Type: Typically "text/vbscript" for web or system associations.
- Encoding: The text encoding (e.g., ANSI, UTF-8, or UTF-16), inferred from content but not a fixed file system property.
These properties are retrieved via file system APIs and are not embedded within the file content itself.
2. Two Direct Download Links for .VBS Files
The following are direct download links to sample .VBS files from public GitHub repositories:
- https://raw.githubusercontent.com/eduardo-mozart/RegClassVBS/master/RegClass.vbs
- https://raw.githubusercontent.com/GeertBellekens/Enterprise-Architect-VBScript-Library/master/Framework/Wrappers/TaggedValues/TaggedValue.vbs
3. Ghost Blog Embedded HTML JavaScript for Drag-and-Drop .VBS File Property Dump
Assuming "ghost blog embedded" refers to embedding this code within a Ghost blogging platform (or similar static site) as an HTML snippet with JavaScript, the following code creates a drag-and-drop area. It allows users to drop a .VBS file, reads it using the browser's File API (limited to client-side metadata, as browsers cannot access full file system properties like owner or ACLs for security reasons), and dumps available properties to the screen. The code assumes the file is text-based and displays its content as part of the "properties" for completeness.
Embed this snippet into a Ghost blog post or page using the HTML card/block.
4. Python Class for Handling .VBS Files
The following Python class opens a .VBS file, reads its content (decoding as UTF-8 by default), allows writing new content, and prints the file system properties using os.stat and other modules. It assumes a Unix-like or Windows environment.
import os
import stat
import pwd # For owner on Unix; use win32security on Windows for full compatibility
import time
class VBSFileHandler:
def __init__(self, filepath):
self.filepath = filepath
self.content = None
def read(self, encoding='utf-8'):
"""Read and decode the file content."""
with open(self.filepath, 'r', encoding=encoding) as f:
self.content = f.read()
return self.content
def write(self, new_content, encoding='utf-8'):
"""Write new content to the file."""
with open(self.filepath, 'w', encoding=encoding) as f:
f.write(new_content)
self.content = new_content
def get_properties(self):
"""Retrieve and return file system properties as a dictionary."""
st = os.stat(self.filepath)
properties = {
'File Name': os.path.basename(self.filepath),
'File Path': os.path.abspath(self.filepath),
'File Size': st.st_size,
'Creation Time': time.ctime(st.st_ctime),
'Last Modification Time': time.ctime(st.st_mtime),
'Last Access Time': time.ctime(st.st_atime),
'File Attributes': stat.filemode(st.st_mode), # e.g., '-rw-r--r--'
'Owner': pwd.getpwuid(st.st_uid).pw_name if os.name != 'nt' else 'Windows Owner (use win32security for SID)',
'Permissions': oct(st.st_mode & 0o777), # Octal permissions
'MIME Type': 'text/vbscript',
'Encoding': 'UTF-8 (assumed)'
}
return properties
def print_properties(self):
"""Print all file system properties to console."""
props = self.get_properties()
for key, value in props.items():
print(f"{key}: {value}")
# Example usage:
# handler = VBSFileHandler('example.vbs')
# handler.read()
# handler.print_properties()
# handler.write('New VBScript code')
5. Java Class for Handling .VBS Files
The following Java class opens a .VBS file, reads its content (decoding as UTF-8), allows writing new content, and prints file system properties using java.nio.file attributes.
import java.io.*;
import java.nio.charset.StandardCharsets;
import java.nio.file.*;
import java.nio.file.attribute.*;
import java.time.Instant;
import java.util.Set;
public class VBSFileHandler {
private final Path filepath;
private String content;
public VBSFileHandler(String filepath) {
this.filepath = Paths.get(filepath);
}
public String read() throws IOException {
content = new String(Files.readAllBytes(filepath), StandardCharsets.UTF_8);
return content;
}
public void write(String newContent) throws IOException {
Files.write(filepath, newContent.getBytes(StandardCharsets.UTF_8));
content = newContent;
}
public void printProperties() throws IOException {
BasicFileAttributes attrs = Files.readAttributes(filepath, BasicFileAttributes.class);
PosixFileAttributes posixAttrs = null;
try {
posixAttrs = Files.readAttributes(filepath, PosixFileAttributes.class);
} catch (UnsupportedOperationException e) {
// Fallback for non-POSIX systems like Windows
}
System.out.println("File Name: " + filepath.getFileName());
System.out.println("File Path: " + filepath.toAbsolutePath());
System.out.println("File Size: " + attrs.size());
System.out.println("Creation Time: " + Instant.ofEpochMilli(attrs.creationTime().toMillis()));
System.out.println("Last Modification Time: " + Instant.ofEpochMilli(attrs.lastModifiedTime().toMillis()));
System.out.println("Last Access Time: " + Instant.ofEpochMilli(attrs.lastAccessTime().toMillis()));
System.out.println("File Attributes: " + (attrs.isRegularFile() ? "Regular File" : "Other") +
(Files.isHidden(filepath) ? ", Hidden" : "") +
(Files.isReadable(filepath) ? ", Readable" : "") +
(Files.isWritable(filepath) ? ", Writable" : ""));
if (posixAttrs != null) {
System.out.println("Owner: " + posixAttrs.owner().getName());
System.out.println("Permissions: " + PosixFilePermissions.toString(posixAttrs.permissions()));
} else {
System.out.println("Owner: (Windows SID - Use AclFileAttributeView for details)");
System.out.println("Permissions: (Use AclFileAttributeView for ACLs)");
}
System.out.println("MIME Type: text/vbscript");
System.out.println("Encoding: UTF-8 (assumed)");
}
// Example usage:
// public static void main(String[] args) throws IOException {
// VBSFileHandler handler = new VBSFileHandler("example.vbs");
// handler.read();
// handler.printProperties();
// handler.write("New VBScript code");
// }
}
6. JavaScript Class for Handling .VBS Files
The following JavaScript class (for Node.js environment, as browser JS cannot arbitrarily open files) opens a .VBS file, reads its content (decoding as UTF-8), allows writing new content, and prints file system properties using fs.stat.
const fs = require('fs');
const path = require('path');
class VBSFileHandler {
constructor(filepath) {
this.filepath = filepath;
this.content = null;
}
read(encoding = 'utf8') {
this.content = fs.readFileSync(this.filepath, encoding);
return this.content;
}
write(newContent, encoding = 'utf8') {
fs.writeFileSync(this.filepath, newContent, encoding);
this.content = newContent;
}
printProperties() {
const stats = fs.statSync(this.filepath);
console.log('File Name:', path.basename(this.filepath));
console.log('File Path:', path.resolve(this.filepath));
console.log('File Size:', stats.size);
console.log('Creation Time:', stats.birthtime.toISOString());
console.log('Last Modification Time:', stats.mtime.toISOString());
console.log('Last Access Time:', stats.atime.toISOString());
console.log('File Attributes:', (stats.mode & fs.constants.S_IFREG ? 'Regular File' : 'Other'));
console.log('Owner:', stats.uid); // UID on Unix; limited on Windows
console.log('Permissions:', (stats.mode & 0o777).toString(8)); // Octal permissions
console.log('MIME Type: text/vbscript');
console.log('Encoding: UTF-8 (assumed)');
}
}
// Example usage:
// const handler = new VBSFileHandler('example.vbs');
// handler.read();
// handler.printProperties();
// handler.write('New VBScript code');
7. C++ Class for Handling .VBS Files
The following C++ class opens a .VBS file, reads its content (assuming UTF-8 decoding via string), allows writing new content, and prints file system properties using stat (Unix-like; for Windows, use _stat or WinAPI for full details).
#include <iostream>
#include <fstream>
#include <string>
#include <sys/stat.h> // For stat
#include <ctime> // For time formatting
#include <cstring> // For strerror
class VBSFileHandler {
private:
std::string filepath;
std::string content;
public:
VBSFileHandler(const std::string& fp) : filepath(fp) {}
std::string read() {
std::ifstream file(filepath, std::ios::in | std::ios::binary);
if (!file) {
throw std::runtime_error("Failed to open file for reading.");
}
content.assign((std::istreambuf_iterator<char>(file)), std::istreambuf_iterator<char>());
return content;
}
void write(const std::string& newContent) {
std::ofstream file(filepath, std::ios::out | std::ios::binary);
if (!file) {
throw std::runtime_error("Failed to open file for writing.");
}
file << newContent;
content = newContent;
}
void printProperties() {
struct stat st;
if (stat(filepath.c_str(), &st) != 0) {
std::cerr << "Error getting file stats: " << strerror(errno) << std::endl;
return;
}
std::cout << "File Name: " << filepath.substr(filepath.find_last_of("/\\") + 1) << std::endl;
std::cout << "File Path: " << filepath << std::endl; // Absolute path requires realpath()
std::cout << "File Size: " << st.st_size << std::endl;
std::cout << "Creation Time: " << std::ctime(&st.st_ctime);
std::cout << "Last Modification Time: " << std::ctime(&st.st_mtime);
std::cout << "Last Access Time: " << std::ctime(&st.st_atime);
std::cout << "File Attributes: " << (S_ISREG(st.st_mode) ? "Regular File" : "Other") << std::endl;
std::cout << "Owner: " << st.st_uid << std::endl; // UID; use getpwuid for name
std::cout << "Permissions: " << std::oct << (st.st_mode & 0777) << std::endl;
std::cout << "MIME Type: text/vbscript" << std::endl;
std::cout << "Encoding: UTF-8 (assumed)" << std::endl;
}
};
// Example usage:
// int main() {
// try {
// VBSFileHandler handler("example.vbs");
// handler.read();
// handler.printProperties();
// handler.write("New VBScript code");
// } catch (const std::exception& e) {
// std::cerr << e.what() << std::endl;
// }
// return 0;
// }