How to Install Chronicle

More in-depth guides:

• Installing Chronicle on Ubuntu 16.04

General process:

1. Clone this repository: `git clone https://github.com/paragonie/chronicle.git`
2. Run `composer install` If you don't have Composer, [go here forComposer installation* instructions](https://getcomposer.org/download/).
3. Run `php bin/install.php` to generate a keypair and basic configuration file.
4. Edit `local/settings.json` to configure your Chronicle. For example, you can choose a MySQL, PostgreSQL, or SQLite backend. See below.
5. Run `php bin/make-tables.php` to setup the database tables
6. Configure a new virtual host for Apache/nginx/etc. to point to the `public` directory, OR run `composer start` to launch the built-in web server.

If you want greater performance, be sure to install the libsodium extension from PECL. Chronicle uses sodium_compat to minimize its dependency on PHP extensions written in C.

Configuring local/settings.json

In general, your local/settings.json file will look like one of the samples below, except with information pertinent to your instance and your public key:

MySQL

To generate MySQL config simply do the following:

php bin/install.php --mysql

The output will be like this:

{
  "database": {
    "dsn": "mysql:host=localhost;port=3306;dbname=chronicle",
    "username": "mysqluser",
    "password": "correct horse battery staple"
  },
  "signing-public-key": "gIQOvAxVbF2zLeanIZDQe7S2gBsabfxM3vP8sjBI_08="
}

There are many available options:

php bin/install.php --mysql \
                    --host localhost \
                    --port 3306 \
                    --database chronicle \
                    --username mysql_user \
                    --password mysql_password

Short format options:

php bin/install.php --mysql -h localhost --port 3306 \
                            -d chronicle -u mysql_user -p mysql_password

PostgreSQL

To generate PostgreSQL config simply do the following:

php bin/install.php --pgsql

The output will be like this:

{
  "database": {
    "dsn": "pgsql:host=localhost;port=5432;dbname=chronicle",
    "username": "pgsqluser",
    "password": "correct horse battery staple"
  },
  "signing-public-key": "gIQOvAxVbF2zLeanIZDQe7S2gBsabfxM3vP8sjBI_08="
}

There are many available options:

php bin/install.php --pgsql \
                    --host localhost \
                    --port 5432 \
                    --database chronicle \
                    --username pgsql_user \
                    --password pgsql_password

Short format options:

php bin/install.php --pgsql -h localhost --port 5432 \
                            -d chronicle -u pgsql_user -p mysql_password

SQLite

To generate SQLite config simply do the following:

php bin/install.php

The output will be like this:

{
  "database": {
    "dsn": "sqlite:/var/www/chronicle/local/live.db"
  },
  "signing-public-key": "gIQOvAxVbF2zLeanIZDQe7S2gBsabfxM3vP8sjBI_08="
}

There are many available options:

php bin/install.php --sqlite --database live --extension db

Short format options:

php bin/install.php --sqlite -d live -e db

How to add clients to your Chronicle

First, you'll need the client's Ed25519 public key.

php bin/create-client.php \
    --publickey=[the base64url-encoded public key] \
    --comment=[any comment you want to use to remember them by]

This will return a message that contains your clientId, which should be included with this client's HTTP requests to the Chronicle.

You can also specify --administrator if you wish to allow this client to add/remove other clients from the API. (It is not possible to add or remove administrators through the API, only normal clients.)

Reading from a Chronicle is 100% public. You do not need to have your key added to the Chronicle to read from it. Client accounts are needed in order to write to a Chronicle.

Generating Client Keys

First, run bin/keygen.php. You should get something like this (the example below contains a valid keypair, but don't use it! Use your own keys instead):

{
    "secret-key": "ouSEaSX_MvsQk_LJGDP-HHX2uLkBxEhYOFAe6J3_sZKAhA68DFVsXbMt5qchkNB7tLaAGxpt_Eze8_yyMEj_Tw==",
    "public-key": "gIQOvAxVbF2zLeanIZDQe7S2gBsabfxM3vP8sjBI_08="
}

You want to keep your secret-key, well, secret! Your public key can safely be given out to other Chronicles.