knx_parser 1.7.1

A Dart library to parse KNX project files (.knxproj) from ETS5 and ETS6, including encrypted projects. Extracts data to JSON format.

KNX Parser

A Dart library to parse KNX project files (.knxproj) from ETS6 and extract data to JSON format.

Features

• 📦 Parse .knxproj files (ZIP-based XML format)
• 🏗️ Extract project information, topology, group addresses, and locations
• 📊 Parse datapoint types (DPT) from knx_master.xml
• 💾 Export to structured JSON format
• 🔄 Support for hierarchical group ranges

Installation

Add to your pubspec.yaml:

dependencies:
  knx_parser:
    git:
      url: https://github.com/Nghi-NV/knx_parser.git
      ref: main

Or clone locally:

git clone https://github.com/Nghi-NV/knx_parser.git

Quick Start

import 'package:knx_parser/knx_parser.dart';

void main() async {
  final parser = KnxProjectParser();
  // Parse project (supports password for encrypted archives)
  final project = await parser.parse('path/to/project.knxproj', password: 'optional-password');
  
  print('Project: ${project.projectInfo.name}');
  print('Group Addresses: ${project.installations.first.groupAddresses.length}');
}

Usage

Parse and Access Data

final project = await parser.parse('project.knxproj');

// Project info
print(project.projectInfo.name);
print(project.projectInfo.guid);

// Installations
for (final installation in project.installations) {
  // Topology (Areas > Lines > Segments)
  for (final area in installation.topology.areas) {
    print('Area ${area.address}');
    for (final line in area.lines) {
      print('  Line ${line.address}');
      // Devices
      for (final device in line.devices) {
        print('    Device ${device.address}: ${device.productRefId}');
      }
    }
  }
  
  // Group Addresses
  for (final ga in installation.groupAddresses) {
    print('${ga.formattedAddress} - ${ga.name}');
  }
  
  // Locations
  for (final loc in installation.locations) {
    print('${loc.type}: ${loc.name}');
  }
}

// Datapoint Types
for (final dpt in project.datapointTypes) {
  print('${dpt.id}: ${dpt.text}');
}

Export to JSON

final parser = KnxProjectParser();

// Get JSON string
final json = await parser.parseToJson('project.knxproj');

// Save to file
await parser.parseToJsonFile('project.knxproj', 'output.json');

JSON Output Structure

{
  "project": {
    "id": "P-0310",
    "name": "ets6_free",
    "groupAddressStyle": "Free",
    "lastModified": "2023-09-11T19:49:52.805Z",
    "guid": "4eb10284-c66c-42a0-9622-48adb78753a3"
  },
  "installations": [
    {
      "name": "",
      "topology": {
        "areas": [...]
      },
      "groupAddresses": [
        {
          "id": "P-0310-0_GA-1",
          "address": 1,
          "formattedAddress": "0/0/1",
          "name": "foo"
        }
      ],
      "locations": [...]
    }
  ],
  "datapointTypes": [...]
}

Running the Example

cd knx_parser
dart pub get
dart run example/parse_knxproj.dart path/to/your/project.knxproj

Running Tests

dart test

Supported KNX Data

Element	Description
Project	Project metadata (name, GUID, dates)
Topology	Network structure (Areas, Lines, Segments)
GroupAddresses	Group addresses with formatted display
GroupRanges	Hierarchical address groupings
Locations	Physical locations (Buildings, Spaces)
DatapointTypes	DPT definitions (DPT-1 to DPT-30+)

Secure KNX Projects (ETS6)

The library supports parsing secure KNX projects (AES-encrypted P-*.zip) directly by providing the project password.

final project = await parser.parse(
  'secure_project.knxproj', 
  password: 'your-project-password'
);

The parser will:

1. Try to open the archive normally.
2. If encrypted, use the provided password to unlock the inner P-*.zip.
3. Extract all data including Security Keys (ToolKey, GroupAddress Key) and Device Instances.

Contributing

Contributions are welcome! Please read our Contributing Guide first.

License

This project is licensed under the MIT License - see the LICENSE file for details.

Acknowledgments

• KNX Association for the KNX standard
• ETS6 for the project file format