# Unbound Ads Generator

A tool to generate Unbound DNS server configuration for blocking advertising domains.

## Overview

This program fetches lists of advertising domains from multiple sources and generates a configuration file for the Unbound DNS server to block these domains. It supports multiple input formats and automatically deduplicates domains.

## Usage

```bash
unbound-ads-generator <url-list> <output-file>
```

Where:
- `url-list` is a URL pointing to a text file containing a list of URLs (one per line) that provide domain lists
- `output-file` is the path where the Unbound configuration will be written

### Input Format

The URL list file should contain URLs (one per line) pointing to domain lists. Lines starting with # are treated as comments.

Example URL list file:
```
# Ad blocking lists
https://raw.githubusercontent.com/PolishFiltersTeam/KADhosts/master/KADhosts.txt
https://raw.githubusercontent.com/FadeMind/hosts.extras/master/add.Spam/hosts
```

The domain lists can be in either of these formats:
```
# IP and domain format
0.0.0.0 advertising.example.com

# Plain domain format
advertising.example.com
```

### Output Format

The program generates Unbound configuration in this format:
```
local-zone: "advertising.example.com" refuse
local-zone: "another-ad.example.com" refuse
```

## Features

- Supports multiple domain list formats
- Automatically deduplicates domains
- Case-insensitive domain matching
- Progress logging
- Comment handling
- Basic domain validation

## Building

```bash
go build
```

## Testing

```bash
go test -v
```
# unbound-ads

A tool to generate [Unbound DNS server](https://nlnetlabs.nl/projects/unbound/about/) configuration for domain blocking. It fetches domain lists from URLs and converts them into Unbound's local-zone configuration format for DNS-based ad and malware blocking.

## Features

- Fetches domain lists from multiple URLs
- Supports various domain list formats (hosts file format, plain domain lists)
- Deduplicates domains automatically
- Generates Unbound-compatible configuration
- Progress logging with slog
- Docker support

## Installation


### Using Docker

```bash
docker pull public.ecr.aws/s0f9o2k5/unbound-ads:latest
```

## Usage

### Binary

```bash
unbound-ads <url-list> <output-file>
```

Where:
- `url-list` is a URL containing a list of domain list URLs (one per line)
- `output-file` is the path where the Unbound configuration will be written

Example:
```bash
unbound-ads https://v.firebog.net/hosts/lists.php?type=tick blocking.conf
```

### Docker

```bash
docker run --rm -v "$PWD:/data" ghcr.io/yourusername/unbound-ads \
  https://v.firebog.net/hosts/lists.php?type=tick /data/blocking.conf
```

## Building from Source

Requirements:
- Go 1.21 or later
- just command runner
- Docker (optional)

```bash
# Build binary
just build

# Build Docker image
just docker-build

# Run tests
just test
```

## Output Format

The tool generates Unbound configuration in this format:

```
local-zone: "example.com" refuse
local-zone: "ads.example.com" refuse
```

When added to your Unbound configuration, these entries will cause Unbound to return NXDOMAIN for queries to blocked domains.