Monolog-Quill

Requires PHP 7.1 or newer.

Want to use Monolog to write security events to a Chronicle?

This library uses Quill to transcribe log messages to a Chronicle instance. This can be a public or private Chronicle.

Installation

composer require paragonie/monolog-quill

Usage

<?php

use Monolog\Logger;
use ParagonIE\MonologQuill\QuillHandler;
use ParagonIE\Quill\Quill;
use ParagonIE\ConstantTime\Base64UrlSafe;
use ParagonIE\Sapient\CryptographyKeys\{
    SigningSecretKey,
    SigningPublicKey
};

// Create a Quill for writing data to the Chronicle instance 
$quill = (new Quill())
    ->setChronicleURL('https://chronicle-public-test.paragonie.com/chronicle')
    ->setServerPublicKey(
        new SigningPublicKey(
            Base64UrlSafe::decode('3BK4hOYTWJbLV5QdqS-DFKEYOMKd-G5M9BvfbqG1ICI=')
        )
    )
    ->setClientID('**Your Client ID provided by the Chronicle here**')
    ->setClientSecretKey(
        new SigningSecretKey('/* Loaded from the filesystem or something. */')
    );

// Push the Handler to Monolog
$log = new Logger('security');
$handler = (new QuillHandler($quill, Logger::ALERT));
$log->pushHandler($handler);

// Now security events will be logged in your Chronicle
$log->alert(
    'User bob logged in at ' .
    ((new DateTime())->format(\DateTime::ATOM))
);

Encrypted Message Logging

Simply pass an instance of SealingPublicKey or SharedEncryptionKey to the handler, via the setEncryptionKey() method, to encrypt log messages.

$handler->setEncryptionKey(
    new SealingPublicKey('/* Loaded from the filesystem or something. */')
);

Encrypted Message Logging - Complete Example

<?php

use Monolog\Logger;
use ParagonIE\MonologQuill\QuillHandler;
use ParagonIE\Quill\Quill;
use ParagonIE\ConstantTime\Base64UrlSafe;
use ParagonIE\Sapient\CryptographyKeys\{
    SealingPublicKey,
    SigningSecretKey,
    SigningPublicKey
};

// Create a Quill for writing data to the Chronicle instance 
$quill = (new Quill())
    ->setChronicleURL('https://chronicle-public-test.paragonie.com/chronicle')
    ->setServerPublicKey(
        new SigningPublicKey(
            Base64UrlSafe::decode('3BK4hOYTWJbLV5QdqS-DFKEYOMKd-G5M9BvfbqG1ICI=')
        )
    )
    ->setClientID('**Your Client ID provided by the Chronicle here**')
    ->setClientSecretKey(
        new SigningSecretKey('/* Loaded from the filesystem or something. */')
    );

// Push the Handler to Monolog
$log = new Logger('security');
$handler = (new QuillHandler($quill, Logger::ALERT));

// Set this to an instance of SealingPublicKey or SharedEncryptionKey:
$handler->setEncryptionKey(
    new SealingPublicKey('/* Loaded from the filesystem or something. */')
);

$log->pushHandler($handler);

// Now security events will be logged in your Chronicle
$log->alert(
    'User bob logged in at ' .
    ((new DateTime())->format(\DateTime::ATOM))
);