ArchivioMD

Descripción

ArchivioMD is a comprehensive WordPress plugin for managing meta-documentation, SEO configuration files, and XML sitemaps from a centralized admin interface. It provides document metadata tracking (UUIDs, checksums, changelogs), HTML rendering from Markdown, and compliance-ready tools for audit and data management.

Core Features

Document Management
* Create and edit Markdown files for meta-documentation (security.txt, privacy policy, terms of service, etc.)
* Manage SEO files (robots.txt, llms.txt, ads.txt, sellers.json)
* Automatic UUID assignment and SHA-256 checksum tracking for document integrity
* Append-only changelog for all document modifications (timestamp, user, checksum)
* HTML rendering from Markdown files with syntax highlighting and responsive design

Sitemap Generation
* Generate XML sitemaps (standard or comprehensive format)
* Optional automatic sitemap updates on post publish/delete
* Support for sitemap index and post-type-specific sitemaps
* Direct integration with WordPress content

Public Index Page
* Optional public-facing document index page
* Customizable document visibility and descriptions
* Integrates seamlessly with your WordPress theme

Compliance & Audit Tools (Tools → ArchivioMD)
* Metadata Export: Download all document metadata as CSV for compliance audits
* Backup & Restore: Create portable ZIP archives of metadata and files; restore with mandatory dry-run verification
* Metadata Verification: Manual checksum verification against stored SHA-256 hashes
* Metadata Cleanup on Uninstall: Optional (disabled by default) cleanup of metadata when uninstalling plugin

Verification Badge System
– Visual badges on posts and pages showing integrity status
– Three states: ✓ Verified (green), ✗ Unverified (red), − Not Signed (gray)
– Automatic display below titles or content
– Manual placement via [hash_verify] shortcode
– Downloadable verification files for offline confirmation

Supported Hash Algorithms

Standard Algorithms:
– SHA-256 (default)
– SHA-512
– SHA3-256
– SHA3-512
– BLAKE2b

Experimental Algorithms:
– BLAKE3 (requires PHP extension)
– SHAKE128-256
– SHAKE256-512

All algorithms supported in both:
– Post/page hash generation
– Markdown file hash verification
– HTML rendering hash preservation

HMAC Integrity Mode

Add authentication to content verification:

// Add to wp-config.php
define('ARCHIVIOMD_HMAC_KEY', 'your-secret-key');

HMAC mode provides:
– Content integrity: Proves content hasn’t changed
– Authenticity: Proves hash was created by key holder
– Tamper detection: Any modification invalidates the hash
– Key-based verification: Offline verification requires secret key

Enable HMAC in Cryptographic Verification → Settings → Enable HMAC Mode

External Anchoring (Remote Distribution Chain)

Distribute cryptographic integrity records to Git repositories for tamper-evident audit trails.

Supported Providers

• GitHub (public and private repositories)
• GitLab (public and private repositories including self-hosted)

Key Capabilities

• Metadata Integrity: Every document gets a unique UUID and SHA-256 checksum
• Audit Trail: Append-only changelog tracks all modifications with user and timestamp
• Manual Verification: Admin-triggered checksum verification (no automatic enforcement)
• Export & Backup: On-demand CSV exports and full backup archives
• Restore Protection: Mandatory dry-run analysis before any restore operation
• Conservative Defaults: Metadata preserved by default; cleanup requires explicit opt-in

Ideal For

• Organizations requiring audit-ready document management
• Sites needing centralized meta-documentation
• Compliance-conscious WordPress administrators
• Sites requiring document integrity verification
• Teams managing SEO configuration files

Important Notes

Database Storage: All metadata (UUIDs, checksums, changelogs) is stored in the WordPress database (wp_options table). Regular WordPress database backups are required for complete data protection.

Manual Operations: This plugin emphasizes manual, admin-triggered actions. Verification, export, and backup operations run only when explicitly initiated by an administrator. There is no automatic enforcement, silent cleanup, or background processing.

File Locations: Markdown and SEO files are stored in your site’s uploads directory under meta-docs/. These files are considered site content and are preserved even when the plugin is uninstalled (unless manually deleted by the administrator).

Getting Started

First Steps

1. Flush Permalinks (Critical)

   • Navigate to Settings → Permalinks
   • Click «Save Changes» (no changes needed, just save)
   • This enables WordPress to serve your meta-documentation files

2. Create Your First Document

   • Go to Meta Docs & SEO
   • Find a predefined file (e.g., «security.txt.md»)
   • Click to expand, enter content, and save
   • The plugin automatically assigns a UUID and records the first changelog entry

3. View Your Document

   • Click «View File» to see the Markdown file at yoursite.com/filename.md
   • Click «Generate HTML» to create an HTML version at yoursite.com/filename.html

4. Review Metadata (Optional)

   • Click «View Changelog» to see document history
   • Note the UUID, checksum, and modification timestamp
   • All metadata is stored separately from the file content

Recommended Workflow

1. Set up regular WordPress database backups (protects metadata)
2. Create and edit documents as needed
3. Periodically verify checksums via Tools → ArchivioMD → Metadata Verification
4. Export metadata to CSV for compliance records (Tools → ArchivioMD)
5. Create backups before major changes using the Backup & Restore tool

Feature Locations & Usage

Main Interface: Meta Docs & SEO

Location: WordPress Admin → Meta Docs & SEO (left sidebar menu)

Tabs Available:

1. Meta Documentation

   • Organized by category (Legal & Compliance, Contact & Support, Technical, Custom)
   • Click category header to expand/collapse
   • Click file card to edit content
   • Save button stores file and updates metadata automatically
   • View File: Opens Markdown file in new tab
   • Generate HTML: Creates HTML version with syntax highlighting
   • Delete HTML: Removes generated HTML file
   • View Changelog: Shows full document history (admin only)

2. SEO Files

   • Manage robots.txt, llms.txt, ads.txt, sellers.json, app-ads.txt
   • Same editing interface as meta-documentation
   • Direct URL access at yoursite.com/robots.txt, etc.

3. Sitemaps

   • Generate sitemap.xml manually
   • Choose between «Small Site» or «Comprehensive» format
   • Optional auto-update on post publish/delete
   • View generated sitemap at yoursite.com/sitemap.xml

4. Public Index

   • Create a public-facing page listing your documents
   • Enable/disable individual documents for public visibility
   • Add custom descriptions for each document
   • Automatically creates a WordPress page (editable like any post)

Compliance Tools: Tools → ArchivioMD

Location: WordPress Admin → Tools → ArchivioMD

Four Tools Available:

1. Metadata Export (CSV)

Purpose: Export all document metadata for compliance audits and record-keeping.

Includes: UUID, filename, path, last-modified timestamp (UTC), SHA-256 checksum, changelog count, full changelog entries.

Usage:
1. Click «Export Metadata to CSV»
2. Wait for processing (shows spinner)
3. CSV file downloads automatically
4. Open in Excel, Google Sheets, or any spreadsheet application

Use Cases: Compliance reporting, audit evidence, metadata backup, migration planning.

2. Document Backup & Restore

Purpose: Create portable ZIP archives of all metadata and files; restore from previous backups.

Critical Information:
* Metadata lives in the WordPress database (wp_options table)
* Regular WordPress database backups are REQUIRED for full protection
* This tool creates portable archives for disaster recovery and migration
* Restore operations require explicit confirmation and show mandatory dry-run first

Create Backup:
1. Click «Create Backup Archive»
2. Wait for processing
3. ZIP file downloads automatically
4. Store securely (contains all metadata + files)

Backup Contains:
* All ArchivioMD metadata (JSON format)
* All Markdown files
* Manifest file with backup details and checksums

Restore from Backup:
1. Click «Select Backup Archive (.zip)» and choose backup file
2. Click «Analyze Backup (Dry Run)» – this is READ-ONLY
3. Review the dry-run report showing what will happen:
* Files to restore (new)
* Files to overwrite (existing)
* Conflicts or issues
4. If acceptable, click «Confirm and Execute Restore»
5. Confirm in the final warning dialog
6. Restoration proceeds (overwrites existing metadata and files)

Important: Restore is DESTRUCTIVE. Always review the dry-run report carefully.

3. Metadata Verification Tool

Purpose: Manually verify document integrity by comparing current file checksums against stored SHA-256 values.

Characteristics:
* Manual: Runs only when you click the button
* Read-only: No automatic corrections or enforcement
* Non-intrusive: Reports status without modifying files or metadata

Usage:
1. Click «Verify All Document Checksums»
2. Wait for processing
3. Review results table showing:
* ✓ VERIFIED: Current checksum matches stored checksum
* ✗ MISMATCH: File has been modified outside the plugin
* ⚠ MISSING FILE: File not found on disk

When to Use:
* Periodic compliance checks
* After FTP/SSH file operations
* Before important backups
* Investigating potential file tampering

What It Does NOT Do:
* Does not automatically fix mismatches
* Does not prevent file access or modifications
* Does not send alerts or notifications
* Does not block the site or show warnings to visitors

4. Metadata Cleanup on Uninstall

Purpose: Control whether metadata is deleted when the plugin is uninstalled.

Default Behavior (Recommended): DISABLED – All metadata is preserved when plugin is uninstalled. Metadata constitutes audit evidence and should be retained according to your organization’s data retention policies.

Status Display:
* Current status always visible: «DISABLED» (green) or «ENABLED» (red)
* Clear indication of what will happen on uninstall

What Gets Deleted (if enabled):
* All document metadata (UUIDs, checksums, timestamps, changelogs)
* Plugin configuration settings
* Public index page (if created by plugin)

What Is NEVER Deleted:
* Markdown files in the uploads meta-docs/ directory – NEVER touched
* Generated HTML files – Remain intact
* Generated sitemaps – Remain intact
* WordPress core data, posts, pages, other plugins – Unaffected

Enabling Cleanup (Opt-In Process):
1. Check «Enable metadata deletion on plugin uninstall» checkbox
2. Confirmation section appears
3. Type exactly: DELETE METADATA (all caps, case-sensitive)
4. Click «Save Cleanup Settings»
5. Confirm in warning dialog (explains irreversible action)
6. Settings saved, page reloads showing «ENABLED» status

Disabling Cleanup (Restore Default):
1. Click «Disable Cleanup (Restore Default)» button (appears when enabled)
2. Confirm action
3. Settings saved, page reloads showing «DISABLED» status

Compliance Recommendations:
* Keep cleanup DISABLED (default) for audit compliance
* Metadata provides valuable audit trails
* Export metadata to CSV before enabling cleanup
* Create backup via Tool 2 before enabling cleanup
* Consult your organization’s data retention policies

When Cleanup Might Be Appropriate:
* End of document lifecycle
* Permanent plugin removal with data deletion requirement
* Site decommissioning
* Specific compliance requirement for data deletion

Audit Trail:
* All cleanup setting changes are logged to PHP error_log
* Logs include: timestamp (UTC), username, user ID, action (ENABLED/DISABLED)

Admin Notices

Database Backup Reminder (Dismissible)
* Appears on admin pages for administrators
* Reminds that metadata is stored in WordPress database
* Recommends regular database backups
* Links to Tools → ArchivioMD compliance tools
* Dismiss by clicking X (won’t show again)

Permalink Flush Notice (Dismissible)
* Appears on plugin page after activation
* Critical reminder to flush permalinks
* Required for file serving to work properly
* Dismiss after completing Settings → Permalinks → Save Changes

Additional Information

System Requirements

• WordPress 5.0 or higher
• PHP 7.4 or higher
• MySQL 5.6 or higher (or equivalent MariaDB)
• Writable uploads directory
• Permalink structure enabled (not «Plain»)

Recommended Environment

• Regular WordPress database backups
• HTTPS enabled for secure admin access
• Up-to-date WordPress core, themes, and plugins
• PHP error logging enabled for audit trail

Performance Considerations

• All operations are admin-triggered (no automatic background processing)
• File serving uses WordPress rewrite rules (cached by permalink system)
• Database queries optimized for single-option reads
• HTML generation is on-demand only
• No impact on frontend page load times

Security Considerations

• Admin-only access (manage_options capability required)
• WordPress nonce verification on all form submissions
• Input sanitization using WordPress sanitize_* functions
• Output escaping using WordPress esc_* functions
• No direct database queries (uses WordPress options API)
• No user-uploaded file execution
• Files served with appropriate content-type headers

Compliance & Audit Notes

What This Plugin Provides:
* Metadata tracking for document integrity
* Manual verification tools for admin use
* Export capabilities for compliance reporting
* Audit trail via append-only changelogs
* Backup and restore functionality
* Conservative defaults (preserve data by default)

What This Plugin Does NOT Provide:
* Automatic compliance certification
* Legal advice or guarantees
* Automatic enforcement of integrity
* Silent or background data cleanup
* Scheduled compliance tasks
* Integration with external compliance platforms

Administrator Responsibilities:
* Maintain regular WordPress database backups
* Review and export metadata periodically
* Verify file integrity as needed
* Configure cleanup settings according to organizational policies
* Consult legal/compliance teams for data retention requirements
* Manually delete files when appropriate

Audit Readiness:
* All metadata changes are logged with timestamps and user IDs
* Checksums use SHA-256 (industry-standard cryptographic hash)
* UUIDs follow RFC 4122 version 4 specification
* Timestamps use UTC ISO 8601 format
* Changelogs are append-only (no deletions or modifications)
* CSV exports contain all metadata for external analysis

Environmental Dependencies:
* Audit trail quality depends on WordPress user management
* Timestamp accuracy depends on server time configuration
* Backup reliability depends on WordPress database backup system
* File integrity depends on filesystem permissions and security
* URL accessibility depends on permalink configuration

Support & Development

For support, feature requests, or bug reports, please use the WordPress.org support forums for this plugin.

Development happens on GitHub. Contributions are welcome.

Privacy Policy

ArchivioMD does not collect, store, or transmit any personal data from site visitors. The plugin stores administrative metadata (document UUIDs, checksums, modification logs) associated with WordPress user accounts. This metadata is stored in your WordPress database and subject to your site’s privacy policy.

WordPress user IDs and usernames are recorded in changelogs to maintain an audit trail. This is standard administrative logging practice.

The plugin does not:
* Track site visitor behavior
* Set cookies for visitors
* Collect analytics
* Share visitor data with third parties

When the External Anchoring feature is used by administrators, the plugin sends document hashes and metadata to GitHub or GitLab (see External Services section below). No visitor data is ever transmitted.

License

This plugin is licensed under the GNU General Public License v2 or later.

You are free to:
* Use the plugin for any purpose
* Study and modify the plugin
* Distribute copies of the plugin
* Distribute modified versions of the plugin

Under the following conditions:
* Preserve copyright and license notices
* Share modifications under the same license
* Provide source code with distributions

For the full license text, see https://www.gnu.org/licenses/gpl-2.0.html

External Services

ArchivioMD includes an optional External Anchoring feature that allows administrators to record cryptographic document hashes in remote Git repositories as an immutable audit trail. This feature is disabled by default and must be explicitly configured by the site administrator.

GitHub API

What it does: When configured, the plugin can write document hash records (commit messages containing the document name, hash algorithm, and checksum) to a GitHub repository via the GitHub REST API.

What data is sent: The document filename, hash algorithm identifier, and cryptographic checksum (hash value). No document content or personal data is transmitted. Requests are made only when an administrator triggers anchoring or when the scheduled background job processes the queue.

When it is sent: Only when the External Anchoring feature is configured with a GitHub repository and a valid personal access token. Data is sent when …