jackal

An XMPP server written in Go.

About

jackal is a free, open-source, high performance XMPP server which aims to be known for its stability, simple configuration and low resource consumption.

Features

jackal supports the following features:

• Customizable
• Enforced SSL/TLS
• Stream compression (zlib)
• Database connectivity for storing offline messages and user settings (BadgerDB, MySQL 5.7+, MariaDB 10.2+, PostgreSQL 9.5+)
• Cross-platform (OS X, Linux)

Push notifications

Support for XEP-0357: Push Notifications is not yet available in jackal.

However there's a chance to forward offline messages to some external service by configuring offline module as follows:

  mod_offline:
    queue_size: 2500
    gateway:
      type: http
      auth: a-secret-token-here
      pass: http://127.0.0.1:6666

Each time a message is sent to an offline user a POST http request to the pass URL is made, using the specified Authorization header and including the message stanza into the request body.

Installing

Getting Started

To start using jackal, install Go 1.12+ and run the following commands:

$ go get -d github.com/ortuman/jackal
$ cd $GOPATH/src/github.com/ortuman/jackal
$ make install

This will retrieve the code and install the jackal server application into your $GOPATH/bin path.

By default the application will try to read server configuration from /etc/jackal/jackal.yml file, but alternatively you can specify a custom configuration path from command line.

$ jackal --config=$GOPATH/src/github.com/ortuman/jackal/example.jackal.yml

MySQL database creation

Grant right to a dedicated 'jackal' user (replace password with your desired password).

echo "GRANT ALL ON jackal.* TO 'jackal'@'localhost' IDENTIFIED BY 'password';", mysql -h localhost -u root -p

Create 'jackal' database (using previously created password).

echo "CREATE DATABASE jackal;", mysql -h localhost -u jackal -p

Download lastest version of the MySQL schema from jackal Github repository.

wget https://raw.githubusercontent.com/ortuman/jackal/master/sql/mysql.up.sql

Load database schema into the database.

mysql -h localhost -D jackal -u jackal -p < mysql.up.sql

Your database is now ready to connect with jackal.

Using PostgreSQL

Create a user and a database for that user:

CREATE ROLE jackal WITH LOGIN PASSWORD 'password';
CREATE DATABASE jackal;
GRANT ALL PRIVILEGES ON DATABASE jackal TO jackal;

Run the postgres script file to create database schema. In jackal's root directory run:

psql --user jackal --password -f sql/postgres.up.psql

Configure jackal to use PostgreSQL by editing the configuration file:

storage:
  type: pgsql
  pgsql:
    host: 127.0.0.1:5432
    user: jackal
    password: password
    database: jackal

That's it!

Cluster configuration

The purpose of clustering is to be able to use several servers for fault-tolerance and scalability.

To run jackal in clustering mode make sure to add a cluster section configuration in each of the cluster nodes.

Here is an example of how this section should look like:

cluster:
  name: node1                             
  port: 5010                              
  hosts: [node2:5010, node3:5010] 

Do not forget to include all cluster nodes, excluding the local one, in the hosts array field. Otherwise the expected behavior will be undefined.

Run jackal in Docker

Set up jackal in the cloud in under 5 minutes with zero knowledge of Golang or Linux shell using our jackal Docker image.

$ docker pull ortuman/jackal
$ docker run --name jackal -p 5222:5222 ortuman/jackal

Supported Specifications

• RFC 6120: XMPP CORE
• RFC 6121: XMPP IM
• RFC 7395: XMPP Subprotocol for WebSocket
• XEP-0004: Data Forms 2.9
• XEP-0012: Last Activity 2.0
• XEP-0030: Service Discovery 2.5rc3
• XEP-0049: Private XML Storage 1.2
• XEP-0054: vcard-temp 1.2
• XEP-0077: In-Band Registration 2.4
• XEP-0092: Software Version 1.1
• XEP-0138: Stream Compression 2.0
• XEP-0160: Best Practices for Handling Offline Messages 1.0.1
• XEP-0191: Blocking Command 1.3
• XEP-0199: XMPP Ping 2.0
• XEP-0220: Server Dialback 1.1.1
• XEP-0237: Roster Versioning 1.3

Join and Contribute

The jackal developer community is vital to improving jackal future releases.

Contributions of all kinds are welcome: reporting issues, updating documentation, fixing bugs, improving unit tests, sharing ideas, and any other tips that may help the jackal community.

Code of Conduct

Help us keep jackal open and inclusive. Please read and follow our Code of Conduct.

Licensing

jackal is licensed under the GNU General Public License, Version 3.0. See
LICENSE for the full
license text.

Contact

If you have any suggestion or question:

Miguel Ángel Ortuño, JID: ortuman@jackal.im, email: ortuman@pm.me