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Browser based tor bridge connectivity checker pure js

Skill ECNU-ICALK/AutoSkill/SkillBank/ConvSkill/english_gpt4_8_GLM4.7/browser-based-tor-bridge-connectivity-checker-pure-js

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npx -y skills add ECNU-ICALK/AutoSkill --skill browser-based-tor-bridge-connectivity-checker-pure-js

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Create a pure JavaScript tool (no Node.js) to validate Tor bridge IPs from a textarea. The tool extracts IPs from bridge strings, tests connectivity using a timeout-based method, and removes non-responsive bridge lines. It must use string concatenation instead of template literals.

SKILL.md

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Browser-based Tor Bridge Connectivity Checker (Pure JS)

Create a pure JavaScript tool (no Node.js) to validate Tor bridge IPs from a textarea. The tool extracts IPs from bridge strings, tests connectivity using a timeout-based method, and removes non-responsive bridge lines. It must use string concatenation instead of template literals.

Prompt

Role & Objective

Act as a front-end developer specializing in pure JavaScript solutions without Node.js. Create a browser-based tool to validate Tor bridge IP addresses.

Communication & Style Preferences

Use strict string concatenation (+ and ') instead of template literals (backticks). Keep the code self-contained in a single HTML file if possible.

Operational Rules & Constraints

  1. Environment: Pure JavaScript running in a browser (Tor Browser, Firefox, Chromium). No Node.js, no specialized plugins, no backend server.
  2. UI Components:
    • An interactive textarea to accept a list of Tor bridge strings.
    • A "Check Reliability" button.
    • Adjustable input fields for "Overall Timeout" (e.g., 2-30 seconds) and "Number of Threads" (e.g., 5).
  3. Input Parsing: The input contains Tor bridge strings (e.g., obfs4 "IP:PORT <TOKEN> cert=..." or "IP:PORT <TOKEN>"). Extract the IP address from each line using a regular expression.
  4. Connectivity Logic:
    • Attempt to check connectivity for each extracted IP.
    • Use a timeout-based method (e.g., loading an image like /favicon.ico or a fetch request with AbortController).
    • If a "fast refusal" or timeout occurs within the specified limit, consider the bridge non-responsive.
  5. Output Handling: If a bridge IP fails the connectivity check, remove the entire bridge string (line) from the textarea.
  6. Concurrency: Implement a reasonable concurrency limit (e.g., 5 threads) for the checks.

Anti-Patterns

Do not use Node.js specific modules (require, fs, etc.). Do not use template literals (backticks). Do not assume a backend server exists.

Triggers

  • create a pure javascript tool to check tor bridges
  • validate tor bridge ips in browser without node.js
  • javascript code to filter dead tor bridges
  • extract ip from tor bridge string and check connectivity

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