View Shtml: Repack

Here’s a helpful, informative blog post draft tailored for developers or system administrators who might be dealing with .shtml files and the concept of “repacking” (often related to server configurations, caching, or legacy systems).

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Scenario 1: Web Archiving and Offline Viewing

A user finds a .shtml file from a website that uses SSI directives (like <!--#include file="menu.shtml"-->). When they download the file for offline viewing, the included content is missing. A "repack" in this context is a script or tool that:

1. Crawls the website.
2. Resolves all SSI directives recursively.
3. Merges the included files into a single, standalone .html file.
4. Repacks the dynamic SHTML into a static, viewable HTML file.

Example tool: wget --recursive --convert-links can mirror an SHTML site, but true repacking tools might be custom Python scripts.

What is an .shtml file?

Unlike a standard .html file, an .shtml file is processed by the server for Server-Side Includes (SSI). SSI lets you dynamically inject content (like headers, footers, or current date) without using PHP or JavaScript.

Example SSI inside an .shtml file:

<!--#include virtual="/includes/header.html" -->

The server parses these directives before sending the final HTML to the browser.

Option 1: Technical Release (Best for GitHub/Forums)

Title: [Release] SHTML Repack – Streamlined Encoder & Packer for SSI Payloads

Body:

Hey everyone,

I’m releasing a small utility I’ve been working on to streamline the obfuscation and packing of SHTML (Server Side Includes) payloads.

🖥️ View SHTML Repack

What is it? SHTML Repack is a lightweight tool designed to assist security researchers and pentesters in encoding SSI commands. It takes raw SHTML input and repacks it into various obfuscated formats to bypass basic WAF filters and signature detection.

Key Features:

• Multiple Encoding Schemes: Supports Base64, Hex, and URL encoding layers.
• One-Liner Conversion: Converts multiline SSI scripts into single executable lines for easy injection.
• Sanitization: Automatically strips unnecessary whitespace and comments to minimize footprint.
• WAF Bypass: Includes preset templates for common evasion techniques.

Usage:

git clone https://github.com/yourusername/shtml-repack.git
cd shtml-repack
python repack.py --input payload.shtml --encode base64

This tool is intended for educational purposes and authorized security testing only. Use responsibly.

Let me know if you encounter any bugs or have feature requests!

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Step-by-step: Convert .shtml to static HTML (safe default)

Assumption: You have a site folder with .shtml files and referenced include files (e.g., /includes/header.shtml). view shtml repack

1. Make a working copy

• Copy the entire website folder to a new “repack” directory.

2. Option A — Expand includes using a local Apache with mod_include (recommended for fidelity)

• Install Apache (macOS: Homebrew, Linux: apt/yum).
• Enable mod_include and ensure .shtml is recognized:
  • Add or edit .htaccess or site config:

    AddType text/html .shtml
    AddOutputFilter INCLUDES .shtml
    Options +Includes
    

• Place the repack directory under Apache’s document root.
• Browse each .shtml page via http://localhost/... and save the rendered HTML (Save Page As → Webpage, HTML only) or use wget to mirror: wget --recursive --page-requisites --adjust-extension --convert-links --span-hosts --domains=localhost http://localhost/path/

3. Option B — Scripted include expansion (good for automation)

• Use a small Node.js or Python script that:
  • Scans .shtml files for SSI include directives, e.g.
  • Replaces each include with file contents (resolve relative paths).
  • Writes output to .html files in the repack directory.
• Example high-level algorithm:
  • For each .shtml file:
    • Read file
    • Find all directives
    • For each directive, resolve path and inline included file contents (recursively if needed)
    • Save expanded content as .html

4. Option C — Use wget/curl against a running site

• If the live site supports SSI, use wget to crawl and save the fully rendered pages: wget --mirror --convert-links --adjust-extension --page-requisites https://example.com/
• This produces static HTML copies with assets.

5. Post-process and bundle

• Fix relative links if needed (tools like html-proofer or linkcheckers help).
• Minify HTML/CSS/JS if desired.
• Bundle into a zip or push to a static host (GitHub Pages, Netlify).