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d2jsp Semi-Automated Scraping Guide

Due to Cloudflare's aggressive bot protection, fully automated scraping is currently restricted. This project uses a Semi-Automated (Offline) Workflow that leverages your authenticated browser session to safely collect market data.

Prerequisites

  1. Python Dependencies: Ensure keyboard and requests are installed (included in requirements.txt).
  2. Browser: Google Chrome is recommended.
  3. Authentication: Be logged into forums.d2jsp.org in your browser.

The Workflow

1. Initial Directory Setup

Before running the automation, you must set the default "Save As" path in your browser:

  1. Open any topic on d2jsp.
  2. Press Ctrl + S.
  3. Navigate to your bot folder: data/d2jsp_pages/.
  4. Save the file. Your browser will now remember this location as the default.

2. Collect Topic URLs

If you don't have a fresh list of URLs, run the collector on a saved forum listing page:

python tools/d2jsp_topic_collector.py --offline-dir data/d2jsp_pages --out data/d2jsp_topic_urls.txt

3. Run Browser Automation

This script will open the first 20 topics from your list, wait for Cloudflare to pass, and simulate the save command.

python tools/browser_auto_save.py

Important:

  • Keep your browser as the active window.
  • Do not move the mouse or type while the script is running.
  • It will automatically Ctrl + S -> Enter -> Ctrl + W for each tab.

4. Generate Price Estimates

Once the HTML files are saved in data/d2jsp_pages/, run the offline scraper to update your bot's configuration:

python tools/fg_market_scraper.py --ladder-start-date 2026-05-20 --offline-dir data/d2jsp_pages --out config/fg_daily_estimates.json

Troubleshooting

Cloudflare "Just a Moment" Loop

If the automation is too fast and hits a "Just a Moment" screen that doesn't resolve:

  1. Increase the time.sleep(8) value in tools/browser_auto_save.py.
  2. Manually solve one challenge in the browser to "warm up" the IP clearance.

Files Not Saving to Correct Folder

If files are saving to your "Downloads" folder instead of data/d2jsp_pages, the browser's default path was reset. Repeat Step 1 to fix it.

Date Parsing Errors

If the scraper reports 0 topics scanned or dates are missing, ensure your browser language isn't translating the page, as the scraper expects English month names (Jan, Feb, Mar, etc.).