# Banglar Bhumi Utils

A Chrome extension that enhances the functionality of the [banglarbhumi.gov.in](https://banglarbhumi.gov.in) website.

## Features

### Automatic CAPTCHA Handling
- [Know Your Property Page](https://banglarbhumi.gov.in/BanglarBhumi/KnowYourProperty.action) - Hides CAPTCHA section and stubs validation to allow proceeding without solving CAPTCHA
- [Application Receipt Page](https://banglarbhumi.gov.in/BanglarBhumi/Apprecrep.action) - Hides CAPTCHA section and stubs form validation to bypass CAPTCHA requirement

### Front-end Optimizations
- **Stop Blocking** (Global) - Disables website's copy/paste/right-click blocking by proxying jQuery's `.bind()` and `.keydown()` methods, and re-enables context menu
- **Login Form Caching** (Global) - Caches login area HTML to avoid re-fetching on subsequent `viewLoginAreaAction` requests

### PDF Download Functionality
- [Know Your Property Page](https://banglarbhumi.gov.in/BanglarBhumi/KnowYourProperty.action)
  - Adds "Download PDF" button after successful khatian/plot details fetch
  - Downloads khatian details or plot information as formatted PDF with district/block/mouza context
  - Handles both khatian ([khDetailsAction_LandInfo.action](https://banglarbhumi.gov.in/BanglarBhumi/khDetailsAction_LandInfo.action)) and plot ([plotDetailsAction_LandInfo.action](https://banglarbhumi.gov.in/BanglarBhumi/plotDetailsAction_LandInfo.action)) detail views

- [Mutation Application Page](https://banglarbhumi.gov.in/BanglarBhumi/MuteApplication.action)
  - Replaces form submit with custom handler
  - Fetches declaration PDF from server, overlays Sangha Facilitation Centre banner image and date stamp on last page
  - Triggers download as "Declaration.pdf"

- [Sheet Map Page](https://banglarbhumi.gov.in/BanglarBhumi/SheetMapViewAction.action)
  - Adds two toolbar buttons: "SAVE PDF" and "SAVE PDF (NO LABEL)"
  - Fetches and renders map layer data (plot polygons) and centroid data (plot number labels)
  - "SAVE PDF" includes plot number labels on map
  - "SAVE PDF (NO LABEL)" exports map without labels
  - Click-to-highlight plot polygons on SVG map with area/plot number info panel
  - Search by plot number to display specific plot information

## Demo
![Demo](https://github.com/user-attachments/assets/deb2d95c-9e19-426c-ae4d-270b99543e3e)

## How to Build
### Requirements
- Node.js (>= 22)
- NPM

### Building
```sh
git clone https://github.com/arpitchakladar/banglar-bhumi-utils
cd banglar-bhumi-utils
npm install
npm run build
```