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Last Updated: 2023-08-04 08:38:40
A PHP package to redact array values by their keys.
License: MIT License
Languages: PHP
A PHP package to redact an array's values by their keys no matter how deep the array.
Have you ever built or interacted with an api and needed to log all outgoing and incoming calls? Chances are that somewhere in that process is an authentication, either by an app or on behalf of a user. Logs are useful for debugging, but storing sensitive information such as passwords or api keys is not something you want to have in your logs for anyone to see. The usage goes beyond just this example, but that is what prompted me to create the ArrayRedactor package.
Whatever your usage needs may be, this package aims to provide a dead-simple, lightweight way to censor sensitive information in an array no matter how deeply it is nested.
Install via composer:
composer require mtownsend/array-redactor
This package is designed to work with any PHP 5.6+ application but has special Facade support for Laravel.
For Laravel 5.4 and lower, add the following line to your config/app.php
:
/*
* Package Service Providers...
*/
Mtownsend\ArrayRedactor\Providers\ArrayRedactorServiceProvider::class,
For Laravel 5.5 and greater, the package will auto register the provider for you.
To register the service provider, add the following line to app/bootstrap/app.php
:
$app->register(Mtownsend\ArrayRedactor\Providers\ArrayRedactorServiceProvider::class);
php artisan vendor:publish --provider="Mtownsend\ArrayRedactor\Providers\ArrayRedactorServiceProvider"
Once your arrayredactor.php
has been published to your config folder, you will see a file with 2 keys in it: keys
and ink
. You can replace these values with anything you want, but please note: these values will only be applied when using the Laravel Facade.
use Mtownsend\ArrayRedactor\ArrayRedactor;
// An example array, maybe a request being made to/from an API application you wish to log in your database
$login = [
'email' => '[email protected]',
'password' => 'secret123',
'data' => [
'session_id' => 'z481jf0an4kasnc8a84aj831'
],
];
$redactor = (new ArrayRedactor($login, ['password', 'session_id']))->redact();
// $redactor will return:
[
'email' => '[email protected]',
'password' => '[REDACTED]',
'data' => [
'session_id' => '[REDACTED]'
],
];
Array Redactor can also receive valid json instead of an array of content.
$json = json_encode([
'email' => '[email protected]',
'password' => 'secret123',
'data' => [
'session_id' => 'z481jf0an4kasnc8a84aj831'
],
]);
$redactor = (new ArrayRedactor($json, ['password', 'session_id']))->redact();
// $redactor will return:
[
'email' => '[email protected]',
'password' => '[REDACTED]',
'data' => [
'session_id' => '[REDACTED]'
],
];
You can also receive your content back as json instead of an array.
$login = [
'email' => '[email protected]',
'password' => 'secret123',
'data' => [
'session_id' => 'z481jf0an4kasnc8a84aj831'
],
];
$redactor = (new ArrayRedactor($login, ['password', 'session_id']))->redactToJson();
// $redactor will return:
"{
"email": "[email protected]",
"password": "[REDACTED]",
"data": {
"session_id": "[REDACTED]"
}
}"
You can change the redaction value (default: [REDACTED]), known as the ink
, by passing it as the third argument of the constructor, or using the dedicated ->ink()
method.
$login = [
'email' => '[email protected]',
'password' => 'secret123',
'data' => [
'session_id' => 'z481jf0an4kasnc8a84aj831'
],
];
$redactor = (new ArrayRedactor($login, ['password', 'session_id'], null))->redact();
// or...
$redactor = (new ArrayRedactor($login, ['password', 'session_id']))->ink(null)->redact();
// $redactor will return:
[
'email' => '[email protected]',
'password' => null,
'data' => [
'session_id' => null
],
];
You can call the ArrayRedactor
as a function and the magic __invoke()
method will call the redact
method for you.
$login = [
'email' => '[email protected]',
'password' => 'secret123',
'data' => [
'session_id' => 'z481jf0an4kasnc8a84aj831'
],
];
$redactor = (new ArrayRedactor($login, ['password', 'session_id'], null))();
// $redactor will return:
[
'email' => '[email protected]',
'password' => null,
'data' => [
'session_id' => null
],
];
Lastly, you can skip the constructor arguments entirely if you prefer.
$login = [
'email' => '[email protected]',
'password' => 'secret123',
'data' => [
'session_id' => 'z481jf0an4kasnc8a84aj831'
],
];
$redactor = (new ArrayRedactor)->content($login)->keys(['password'])->ink(null)->redact();
// $redactor will return:
[
'email' => '[email protected]',
'password' => null,
'data' => [
'session_id' => 'z481jf0an4kasnc8a84aj831'
],
];
This package provides a convenient helper function which is globally accessible.
array_redactor($array, $keys, $ink)->redact();
// or...
array_redactor()->content($array)->keys(['current_password', 'new_password'])->ink('████████')->redact();
If you are using Laravel, this package provides a facade. To register the facade add the following line to your config/app.php
under the aliases
key.
Please note: this is the only method for Laravel users that will prefill your keys
and ink
from your arrayredactor.php
config file. The global helper and direct instantiation of the class will not prefill these values for you.
'ArrayRedactor' => Mtownsend\ArrayRedactor\Facades\ArrayRedactor::class,
use ArrayRedactor;
// Laravel prefills our keys() and ink() methods for us from the config file
ArrayRedactor::content($array)->redact();
In the event you pass content that is not valid json or an array, an ArrayRedactorException
will be thrown.
try {
$redactor = (new ArrayRedactor('i am an invalid argument', ['password']))->redact();
} catch (\Mtownsend\ArrayRedactor\Exceptions\ArrayRedactorException $exception) {
// do something...
}
You can run the tests with:
./vendor/bin/phpunit
The MIT License (MIT). Please see License File for more information.