Add initial implementation of SimpleGuardHome web app with configuration and dependencies

.env.example

@@ -0,0 +1,5 @@
+# AdGuard Home Configuration
+ADGUARD_HOST=http://localhost
+ADGUARD_PORT=3000
+ADGUARD_USERNAME=admin
+ADGUARD_PASSWORD=password

README.md

@@ -1,13 +1,65 @@
 # SimpleGuardHome
-**WARNING** Very early work in progress. Use at your own risk.
 
-SimpleGuardHome is a Python project designed to provide a simple method to check if a domain is blocked by AdGuard Home and then add a custom rule for it.
+A simple web application for checking and managing domain filtering in AdGuard Home.
 
 ## Features
 
-- Check if a domain is blocked by AdGuard Home.
-- Add a custom blocking rule for a domain in AdGuard Home.
+- Check if domains are blocked by your AdGuard Home instance
+- One-click domain unblocking
+- Modern, responsive web interface
+- Secure integration with AdGuard Home API
+
+## Setup
+
+1. Clone this repository:
+```bash
+git clone https://github.com/yourusername/simpleguardhome.git
+cd simpleguardhome
+```
+
+2. Create a virtual environment and install dependencies:
+```bash
+python -m venv venv
+source venv/bin/activate  # On Windows use: venv\Scripts\activate
+pip install -r requirements.txt
+```
+
+3. Configure your environment:
+```bash
+cp .env.example .env
+```
+
+Edit `.env` with your AdGuard Home instance details:
+```
+ADGUARD_HOST=http://localhost
+ADGUARD_PORT=3000
+ADGUARD_USERNAME=your_username
+ADGUARD_PASSWORD=your_password
+```
+
+## Running the Application
+
+Start the application:
+```bash
+python -m src.simpleguardhome.main
+```
+
+Visit `http://localhost:8000` in your web browser.
+
+## Usage
+
+1. Enter a domain in the input field
+2. Click "Check Domain" or press Enter
+3. View the domain's blocking status
+4. If blocked, use the "Unblock Domain" button to whitelist it
+
+## Development
+
+The application is built with:
+- FastAPI for the backend
+- Tailwind CSS for styling
+- Modern JavaScript for frontend interactivity
 
 ## License
 
-This project is licensed under the MIT License. See the [LICENSE](LICENSE) file for details.
+MIT License - See LICENSE file for details

requirements.txt

@@ -0,0 +1,10 @@
+fastapi==0.109.0
+uvicorn==0.27.0
+python-dotenv==1.0.0
+httpx==0.26.0
+pydantic==2.5.3
+pydantic-settings==2.1.0
+pytest==7.4.4
+pytest-asyncio==0.23.3
+python-multipart==0.0.6
+jinja2==3.1.3

setup.py

@@ -0,0 +1,19 @@
+from setuptools import setup, find_packages
+
+setup(
+    name="simpleguardhome",
+    version="0.1.0",
+    packages=find_packages(),
+    include_package_data=True,
+    package_data={
+        "simpleguardhome": ["templates/*"]
+    },
+    install_requires=[
+        "fastapi",
+        "uvicorn",
+        "python-dotenv",
+        "httpx",
+        "pydantic",
+        "jinja2",
+    ],
+)

src/simpleguardhome/__init__.py

@@ -0,0 +1,6 @@
+"""SimpleGuardHome - Web app for managing AdGuard Home domain filtering."""
+
+from .main import app, start
+
+__version__ = "0.1.0"
+__all__ = ["app", "start"]

src/simpleguardhome/adguard.py

@@ -0,0 +1,140 @@
+from typing import Dict, List, Optional
+import httpx
+import logging
+from .config import settings
+
+# Configure logging
+logging.basicConfig(level=logging.INFO)
+logger = logging.getLogger(__name__)
+
+class AdGuardError(Exception):
+    """Base exception for AdGuard Home API errors."""
+    pass
+
+class AdGuardConnectionError(AdGuardError):
+    """Raised when connection to AdGuard Home fails."""
+    pass
+
+class AdGuardAPIError(AdGuardError):
+    """Raised when AdGuard Home API returns an error."""
+    pass
+
+class AdGuardClient:
+    """Client for interacting with AdGuard Home API."""
+    
+    def __init__(self):
+        """Initialize the AdGuard Home API client."""
+        self.base_url = settings.adguard_base_url
+        self.client = httpx.AsyncClient(timeout=10.0)  # 10 second timeout
+        self._auth = None
+        if settings.ADGUARD_USERNAME and settings.ADGUARD_PASSWORD:
+            self._auth = (settings.ADGUARD_USERNAME, settings.ADGUARD_PASSWORD)
+        logger.info(f"Initialized AdGuard Home client with base URL: {self.base_url}")
+    
+    async def check_domain(self, domain: str) -> Dict:
+        """Check if a domain is blocked by AdGuard Home.
+        
+        Args:
+            domain: The domain to check
+            
+        Returns:
+            Dict containing the filtering status
+            
+        Raises:
+            AdGuardConnectionError: If connection to AdGuard Home fails
+            AdGuardAPIError: If AdGuard Home API returns an error
+        """
+        url = f"{self.base_url}/filtering/check_host"
+        params = {"name": domain}
+        
+        try:
+            logger.info(f"Checking domain: {domain}")
+            response = await self.client.get(url, params=params, auth=self._auth)
+            response.raise_for_status()
+            result = response.json()
+            logger.info(f"Domain check result for {domain}: {result}")
+            return result
+            
+        except httpx.ConnectError as e:
+            logger.error(f"Connection error while checking domain {domain}: {str(e)}")
+            raise AdGuardConnectionError(f"Failed to connect to AdGuard Home: {str(e)}")
+        except httpx.HTTPError as e:
+            logger.error(f"HTTP error while checking domain {domain}: {str(e)}")
+            raise AdGuardAPIError(f"AdGuard Home API error: {str(e)}")
+        except Exception as e:
+            logger.error(f"Unexpected error while checking domain {domain}: {str(e)}")
+            raise AdGuardError(f"Unexpected error: {str(e)}")
+    
+    async def get_filter_status(self) -> Dict:
+        """Get the current filtering status.
+        
+        Returns:
+            Dict containing the filtering status
+            
+        Raises:
+            AdGuardConnectionError: If connection to AdGuard Home fails
+            AdGuardAPIError: If AdGuard Home API returns an error
+        """
+        url = f"{self.base_url}/filtering/status"
+        
+        try:
+            logger.info("Getting filter status")
+            response = await self.client.get(url, auth=self._auth)
+            response.raise_for_status()
+            result = response.json()
+            logger.info("Successfully retrieved filter status")
+            return result
+            
+        except httpx.ConnectError as e:
+            logger.error(f"Connection error while getting filter status: {str(e)}")
+            raise AdGuardConnectionError(f"Failed to connect to AdGuard Home: {str(e)}")
+        except httpx.HTTPError as e:
+            logger.error(f"HTTP error while getting filter status: {str(e)}")
+            raise AdGuardAPIError(f"AdGuard Home API error: {str(e)}")
+        except Exception as e:
+            logger.error(f"Unexpected error while getting filter status: {str(e)}")
+            raise AdGuardError(f"Unexpected error: {str(e)}")
+    
+    async def add_allowed_domain(self, domain: str) -> bool:
+        """Add a domain to the allowed list.
+        
+        Args:
+            domain: The domain to allow
+            
+        Returns:
+            bool: True if successful
+            
+        Raises:
+            AdGuardConnectionError: If connection to AdGuard Home fails
+            AdGuardAPIError: If AdGuard Home API returns an error
+        """
+        url = f"{self.base_url}/filtering/whitelist/add"
+        data = {"name": domain}
+        
+        try:
+            logger.info(f"Adding domain to whitelist: {domain}")
+            response = await self.client.post(url, json=data, auth=self._auth)
+            response.raise_for_status()
+            logger.info(f"Successfully added {domain} to whitelist")
+            return True
+            
+        except httpx.ConnectError as e:
+            logger.error(f"Connection error while whitelisting domain {domain}: {str(e)}")
+            raise AdGuardConnectionError(f"Failed to connect to AdGuard Home: {str(e)}")
+        except httpx.HTTPError as e:
+            logger.error(f"HTTP error while whitelisting domain {domain}: {str(e)}")
+            raise AdGuardAPIError(f"AdGuard Home API error: {str(e)}")
+        except Exception as e:
+            logger.error(f"Unexpected error while whitelisting domain {domain}: {str(e)}")
+            raise AdGuardError(f"Unexpected error: {str(e)}")
+    
+    async def close(self):
+        """Close the HTTP client."""
+        await self.client.aclose()
+        logger.info("Closed AdGuard Home client")
+        
+    async def __aenter__(self):
+        return self
+        
+    async def __aexit__(self, exc_type, exc_val, exc_tb):
+        await self.close()

src/simpleguardhome/config.py

@@ -0,0 +1,22 @@
+from pydantic_settings import BaseSettings
+from typing import Optional
+
+
+class Settings(BaseSettings):
+    """Application settings using environment variables."""
+    
+    ADGUARD_HOST: str = "http://localhost"
+    ADGUARD_PORT: int = 3000
+    ADGUARD_USERNAME: Optional[str] = None
+    ADGUARD_PASSWORD: Optional[str] = None
+    
+    @property
+    def adguard_base_url(self) -> str:
+        """Get the base URL for AdGuard Home API."""
+        return f"{self.ADGUARD_HOST}:{self.ADGUARD_PORT}"
+    
+    class Config:
+        env_file = ".env"
+
+
+settings = Settings()

src/simpleguardhome/main.py

@@ -0,0 +1,129 @@
+from fastapi import FastAPI, Request, Form, HTTPException
+from fastapi.templating import Jinja2Templates
+from fastapi.staticfiles import StaticFiles
+from fastapi.responses import HTMLResponse, JSONResponse
+from pathlib import Path
+import httpx
+import logging
+from typing import Dict
+from . import adguard
+from .config import settings
+from .adguard import AdGuardError, AdGuardConnectionError, AdGuardAPIError
+
+# Configure logging
+logging.basicConfig(level=logging.INFO)
+logger = logging.getLogger(__name__)
+
+app = FastAPI(title="SimpleGuardHome")
+
+# Setup templates directory
+templates_path = Path(__file__).parent / "templates"
+templates = Jinja2Templates(directory=str(templates_path))
+
+@app.get("/", response_class=HTMLResponse)
+async def home(request: Request):
+    """Render the home page."""
+    return templates.TemplateResponse(
+        "index.html",
+        {"request": request}
+    )
+
+@app.get("/health")
+async def health_check() -> Dict:
+    """Check the health of the application and AdGuard Home connection."""
+    try:
+        async with adguard.AdGuardClient() as client:
+            status = await client.get_filter_status()
+            return {
+                "status": "healthy",
+                "adguard_connection": "connected",
+                "filtering_enabled": status.get("enabled", False)
+            }
+    except AdGuardConnectionError:
+        return {
+            "status": "degraded",
+            "adguard_connection": "failed",
+            "error": "Could not connect to AdGuard Home"
+        }
+    except Exception as e:
+        logger.error(f"Health check failed: {str(e)}")
+        return {
+            "status": "error",
+            "error": str(e)
+        }
+
+@app.exception_handler(AdGuardError)
+async def adguard_exception_handler(request: Request, exc: AdGuardError) -> JSONResponse:
+    """Handle AdGuard-related exceptions."""
+    if isinstance(exc, AdGuardConnectionError):
+        status_code = 503  # Service Unavailable
+    elif isinstance(exc, AdGuardAPIError):
+        status_code = 502  # Bad Gateway
+    else:
+        status_code = 500  # Internal Server Error
+    
+    return JSONResponse(
+        status_code=status_code,
+        content={
+            "success": False,
+            "error": exc.__class__.__name__,
+            "detail": str(exc)
+        }
+    )
+
+@app.post("/check-domain")
+async def check_domain(domain: str = Form(...)) -> Dict:
+    """Check if a domain is blocked by AdGuard Home."""
+    if not domain:
+        raise HTTPException(status_code=400, detail="Domain is required")
+    
+    logger.info(f"Checking domain: {domain}")
+    try:
+        async with adguard.AdGuardClient() as client:
+            result = await client.check_domain(domain)
+            response = {
+                "success": True,
+                "domain": domain,
+                "blocked": result.get("filtered", False),
+                "rule": result.get("rule", ""),
+                "filter_list": result.get("filter_list", "")
+            }
+            logger.info(f"Domain check result: {response}")
+            return response
+    except Exception as e:
+        logger.error(f"Error checking domain {domain}: {str(e)}")
+        raise
+
+@app.post("/unblock-domain")
+async def unblock_domain(domain: str = Form(...)) -> Dict:
+    """Add a domain to the allowed list."""
+    if not domain:
+        raise HTTPException(status_code=400, detail="Domain is required")
+    
+    logger.info(f"Unblocking domain: {domain}")
+    try:
+        async with adguard.AdGuardClient() as client:
+            await client.add_allowed_domain(domain)
+            response = {
+                "success": True,
+                "domain": domain,
+                "message": f"Successfully unblocked {domain}"
+            }
+            logger.info(f"Domain unblock result: {response}")
+            return response
+    except Exception as e:
+        logger.error(f"Error unblocking domain {domain}: {str(e)}")
+        raise
+
+def start():
+    """Start the application using uvicorn."""
+    import uvicorn
+    uvicorn.run(
+        "simpleguardhome.main:app",
+        host="0.0.0.0",
+        port=8000,
+        reload=True
+    )
+
+if __name__ == "__main__":
+    start()

src/simpleguardhome/templates/index.html

@@ -0,0 +1,147 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>SimpleGuardHome</title>
+    <script src="https://cdn.tailwindcss.com"></script>
+    <script>
+        async function checkDomain(event) {
+            event.preventDefault();
+            const domain = document.getElementById('domain').value;
+            const resultDiv = document.getElementById('result');
+            const unblockDiv = document.getElementById('unblock-action');
+            const submitBtn = document.getElementById('submit-btn');
+            
+            try {
+                // Show loading state
+                submitBtn.disabled = true;
+                submitBtn.innerHTML = '<span class="inline-flex items-center">Checking... <svg class="animate-spin ml-2 h-5 w-5 text-white" xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24"><circle class="opacity-25" cx="12" cy="12" r="10" stroke="currentColor" stroke-width="4"></circle><path class="opacity-75" fill="currentColor" d="M4 12a8 8 0 018-8V0C5.373 0 0 5.373 0 12h4zm2 5.291A7.962 7.962 0 014 12H0c0 3.042 1.135 5.824 3 7.938l3-2.647z"></path></svg></span>';
+                
+                const response = await fetch('/check-domain', {
+                    method: 'POST',
+                    headers: {
+                        'Content-Type': 'application/x-www-form-urlencoded',
+                    },
+                    body: `domain=${encodeURIComponent(domain)}`
+                });
+                const data = await response.json();
+                
+                if (data.success) {
+                    if (data.blocked) {
+                        resultDiv.innerHTML = `
+                            <div class="bg-red-100 border-l-4 border-red-500 text-red-700 p-4 mb-4">
+                                <p class="font-bold">Domain is blocked</p>
+                                <p class="text-sm"><strong>${domain}</strong> is blocked by rule:</p>
+                                <p class="text-sm font-mono bg-red-50 p-2 mt-1 rounded">${data.rule || 'Unknown rule'}</p>
+                                ${data.filter_list ? `<p class="text-sm mt-2">Filter List: ${data.filter_list}</p>` : ''}
+                            </div>`;
+                        unblockDiv.innerHTML = `
+                            <button onclick="unblockDomain('${domain}')" 
+                                    class="bg-blue-500 hover:bg-blue-700 text-white font-bold py-2 px-4 rounded transition-colors duration-200">
+                                Unblock Domain
+                            </button>`;
+                    } else {
+                        resultDiv.innerHTML = `
+                            <div class="bg-green-100 border-l-4 border-green-500 text-green-700 p-4">
+                                <p class="font-bold">Domain is not blocked</p>
+                                <p class="text-sm"><strong>${domain}</strong> is allowed</p>
+                            </div>`;
+                        unblockDiv.innerHTML = '';
+                    }
+                } else {
+                    // Show error message
+                    resultDiv.innerHTML = `
+                        <div class="bg-yellow-100 border-l-4 border-yellow-500 text-yellow-700 p-4">
+                            <p class="font-bold">${data.error}</p>
+                            <p class="text-sm">${data.detail}</p>
+                        </div>`;
+                    unblockDiv.innerHTML = '';
+                }
+            } catch (error) {
+                resultDiv.innerHTML = `
+                    <div class="bg-red-100 border-l-4 border-red-500 text-red-700 p-4">
+                        <p class="font-bold">Error checking domain</p>
+                        <p class="text-sm">${error.message}</p>
+                    </div>`;
+                unblockDiv.innerHTML = '';
+            } finally {
+                // Reset button state
+                submitBtn.disabled = false;
+                submitBtn.innerHTML = 'Check Domain';
+            }
+        }
+
+        async function unblockDomain(domain) {
+            const resultDiv = document.getElementById('result');
+            const unblockDiv = document.getElementById('unblock-action');
+            const unblockBtn = unblockDiv.querySelector('button');
+            
+            try {
+                // Show loading state
+                unblockBtn.disabled = true;
+                unblockBtn.innerHTML = '<span class="inline-flex items-center">Unblocking... <svg class="animate-spin ml-2 h-5 w-5 text-white" xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24"><circle class="opacity-25" cx="12" cy="12" r="10" stroke="currentColor" stroke-width="4"></circle><path class="opacity-75" fill="currentColor" d="M4 12a8 8 0 018-8V0C5.373 0 0 5.373 0 12h4zm2 5.291A7.962 7.962 0 014 12H0c0 3.042 1.135 5.824 3 7.938l3-2.647z"></path></svg></span>';
+                
+                const response = await fetch('/unblock-domain', {
+                    method: 'POST',
+                    headers: {
+                        'Content-Type': 'application/x-www-form-urlencoded',
+                    },
+                    body: `domain=${encodeURIComponent(domain)}`
+                });
+                const data = await response.json();
+                
+                if (data.success) {
+                    resultDiv.innerHTML = `
+                        <div class="bg-green-100 border-l-4 border-green-500 text-green-700 p-4">
+                            <p class="font-bold">Success!</p>
+                            <p class="text-sm">${data.message}</p>
+                        </div>`;
+                    unblockDiv.innerHTML = '';
+                } else {
+                    resultDiv.innerHTML = `
+                        <div class="bg-yellow-100 border-l-4 border-yellow-500 text-yellow-700 p-4">
+                            <p class="font-bold">${data.error}</p>
+                            <p class="text-sm">${data.detail}</p>
+                        </div>`;
+                }
+            } catch (error) {
+                resultDiv.innerHTML = `
+                    <div class="bg-red-100 border-l-4 border-red-500 text-red-700 p-4">
+                        <p class="font-bold">Error unblocking domain</p>
+                        <p class="text-sm">${error.message}</p>
+                    </div>`;
+            }
+        }
+    </script>
+</head>
+<body class="bg-gray-100 min-h-screen">
+    <div class="container mx-auto px-4 py-8 max-w-2xl">
+        <h1 class="text-3xl font-bold text-center mb-8 text-gray-800">SimpleGuardHome</h1>
+        
+        <div class="bg-white rounded-lg shadow-md p-6">
+            <form onsubmit="checkDomain(event)" class="mb-6">
+                <div class="mb-4">
+                    <label for="domain" class="block text-gray-700 text-sm font-bold mb-2">
+                        Enter Domain to Check
+                    </label>
+                    <input type="text" id="domain" name="domain" required
+                           class="shadow appearance-none border rounded w-full py-2 px-3 text-gray-700 leading-tight focus:outline-none focus:shadow-outline"
+                           placeholder="example.com">
+                </div>
+                <button id="submit-btn" type="submit" 
+                        class="bg-green-500 hover:bg-green-700 text-white font-bold py-2 px-4 rounded w-full transition-colors duration-200">
+                    Check Domain
+                </button>
+            </form>
+            
+            <div id="result"></div>
+            <div id="unblock-action" class="mt-4 text-center"></div>
+        </div>
+
+        <div class="mt-4 text-center text-gray-600 text-sm">
+            Make sure your AdGuard Home instance is running and properly configured in the .env file.
+        </div>
+    </div>
+</body>
+</html>