Web to Knowledge Base for Open WebUI

A Python utility script that crawls websites, converts pages to Markdown or preserves JSON data, and uploads them to an Open WebUI knowledge base.

Features

• Crawls websites to a specified depth while respecting domain boundaries
• Converts HTML content to Markdown using MarkItDown
• Preserves JSON content in its original format
• Creates or updates knowledge bases in Open WebUI
• Handles existing files through update or skip options
• Customizable crawling with exclude patterns
• Detailed logging of the process

Installation

Prerequisites

• Python 3.10+
• Open WebUI instance with API access

Dependencies

Install the required packages:

pip install requests beautifulsoup4 markitdown[all]

Getting the Script

Download the script and make it executable:

curl -O https://raw.githubusercontent.com/yourusername/open-webui-site-crawler/main/web_to_kb.py
chmod +x web_to_kb.py

Usage

Basic usage:

python web_to_kb.py --token "YOUR_API_TOKEN" \
                   --base-url "https://your-openwebui-instance.com" \
                   --website-url "https://website-to-crawl.com" \
                   --kb-name "My Website Knowledge Base"

Command Line Arguments

Argument	Short	Description	Required	Default
--token	-t	Your OpenWebUI API token	Yes	-
--base-url	-u	Base URL of your OpenWebUI instance	Yes	-
--website-url	-w	URL of the website to crawl	Yes	-
--kb-name	-n	Name for the knowledge base	Yes	-
--kb-purpose	-p	Purpose description for the knowledge base	No	None
--depth	-d	Maximum depth to crawl	No	2
--delay		Delay between requests in seconds	No	1.0
--exclude	-e	URL patterns to exclude from crawling (can be specified multiple times)	No	None
--include-json	-j	Include JSON files and API endpoints	No	False
--update		Update existing files in the knowledge base	No	False
--skip-existing		Skip existing files in the knowledge base	No	False

Examples

Basic Crawl with Limited Depth

python web_to_kb.py -t "YOUR_API_TOKEN" \
                   -u "https://your-openwebui-instance.com" \
                   -w "https://docs.example.com" \
                   -n "Example Docs KB" \
                   -d 3

Excluding Certain URL Patterns

python web_to_kb.py -t "YOUR_API_TOKEN" \
                   -u "https://your-openwebui-instance.com" \
                   -w "https://blog.example.com" \
                   -n "Example Blog KB" \
                   -e "/tags/" \
                   -e "/author/" \
                   -e "/search/"

Including JSON Content

python web_to_kb.py -t "YOUR_API_TOKEN" \
                   -u "https://your-openwebui-instance.com" \
                   -w "https://api-docs.example.com" \
                   -n "Example API Documentation" \
                   -j

Updating an Existing Knowledge Base

python web_to_kb.py -t "YOUR_API_TOKEN" \
                   -u "https://your-openwebui-instance.com" \
                   -w "https://knowledge-center.example.com" \
                   -n "Knowledge Center" \
                   --update

Skipping Existing Files

python web_to_kb.py -t "YOUR_API_TOKEN" \
                   -u "https://your-openwebui-instance.com" \
                   -w "https://docs.example.com" \
                   -n "Documentation KB" \
                   --skip-existing

How It Works

1. Website Crawling: The script starts crawling from the specified website URL, following links up to the specified depth while staying within the same domain.

2. Content Processing:

   • HTML content is converted to Markdown using MarkItDown
   • JSON content is preserved in its native format (when --include-json is used)

3. Knowledge Base Management:

   • Checks if a knowledge base with the specified name already exists
   • Creates a new knowledge base if none exists

4. File Upload:

   • Manages existing files based on the --update or --skip-existing flags
   • Uploads new files to the knowledge base

Notes

• The script respects domain boundaries and will not crawl external links
• URLs are used to generate filenames, with special characters replaced
• Add a delay between requests to be respectful of websites' resources
• File updates are performed by uploading a new file and removing the old one

License

This project is licensed under the MIT License - see the LICENSE file for details.

Acknowledgments

• MarkItDown for HTML to Markdown conversion [1]
• BeautifulSoup for HTML parsing
• Requests for HTTP requests
• Open WebUI for the knowledge base API