rougin / authsum
Simple authentication package in PHP.
Requires
- php: >=5.3.0
Requires (Dev)
- ircmaxell/password-compat: ~1.0
- phpunit/phpunit: ~4.2|~5.7|~6.0|~7.0|~8.0|~9.0
- sanmai/phpunit-legacy-adapter: ~6.1|~8.0
This package is auto-updated.
Last update: 2024-11-18 15:25:10 UTC
README
Authsum
is a simple authentication package written in PHP which allows to create simple and extensible authentication logic.
Installation
Install the Authsum
package via Composer:
$ composer require rougin/authsum
Basic usage
Prior in using Authsum
, a data source must be defined first (e.g., BasicSource
):
// index.php use Rougin\Authsum\Source\BasicSource; // ... $username = 'admin'; $password = /** ... */; // Check if the provided username and password data --- // matched from the given payload (e.g., $_POST) ------ $source = new BasicSource($username, $password); // ---------------------------------------------------- // ...
Once the source is defined, use the Authsum
class to perform the validation logic:
// index.php use Rougin\Authsum\Authsum; // ... $auth = new Authsum($source); if ($auth->isValid($_POST)) { /** @var \Acme\Models\User */ $user = $auth->getResult()->getField('user'); echo 'Welcome ' . $user->getName() . '!'; } else { echo 'Invalid credentials!'; }
Customization
Authsum
also provides simple extensibility utilities to be able to fit in from various use-cases.
Pass or fail from Authsum
The Authsum
class can also be extended to provide methods if the validation logic passed or failed:
namespace Acme; use Acme\Depots\AuditDepot; use Acme\Errors\NoAccount; use Rougin\Authsum\Authsum; use Rougin\Authsum\Error; use Rougin\Authsum\Result; class TestAuth extends Authsum { protected $audit; public function __construct(AuditDepot $audit) { $this->audit = $audit; } /** * Executes if the validation failed. * * @param \Rougin\Authsum\Error $error * * @return void */ protected function failed(Error $error) { throw new NoAccount($error->getText()); } /** * Executes if the validation passed. * * @param \Rougin\Authsum\Result $data * * @return void */ protected function passed(Result $data) { /** @var string */ $user = $data->getField('name'); $this->audit->userLoggedIn($user); } }
Alternatively, the Authsum
class can also get the error or the result after validation using getError()
and getResult()
respectively:
// index.php use Rougin\Authsum\Authsum; // ... $auth = new Authsum($source); if ($auth->isValid($_POST)) { $result = $auth->getResult(); /** @var string */ $name = $result->getField('name'); echo 'Welcome ' . $name . '!'; } else { $error = $auth->getError(); echo 'Error: ' . $auth->getText(); }
Note
An UnexpectedValueException
will be thrown if trying to access an empty output (e.g., trying to access getResult()
after the failed validation).
Changing fields to check
By default, the Authsum
class can check the email
as its username and password
for the password from the payload (e.g., $_POST
). If this is not the case, kindly update the specified fields using setUsernameField
or setPasswordField
:
// index.php // ... $auth->setUsernameField('username'); $auth->setPasswordField('password'); // ...
Note
The specified fields will be used by the Authsum
class if they are required by the specified source (e.g., BasicSource
, PdoSource
).
Using sources
Sources in Authsum
are PHP classes that provide user data. They can be used for checking the specified username and password fields against its data source:
// index.php use Rougin\Authsum\Authsum; use Rougin\Authsum\Source\BasicSource; // ... // Initialize the source... -------------------- $username = 'admin'; $password = /** ... */; $source = new BasicSource($username, $password); // --------------------------------------------- // ...then pass it to Authsum --- $auth = new Authsum($source); // ------------------------------ // The source will be used to check if --- // the provided payload matches in the --- // given payload ($_POST) from its source $valid = $auth->isValid($_POST); // --------------------------------------- // ...
PdoSource
Besides from BasicSource
, another available source that can be used is PdoSource
which uses PDO to interact with a database:
// index.php use Rougin\Authsum\Source\PdoSource; // ... // Create a PDO instance... -------------- $dsn = 'mysql:host=localhost;dbname=demo'; $pdo = new PDO($dsn, 'root', /** ... */); // --------------------------------------- // ...then pass it to the PdoSource --- $source = new PdoSource($pdo); // ------------------------------------ // ...
The setTableName
method can also be used to specify its database table name:
// index.php use Rougin\Authsum\Source\PdoSource; // ... $source = new PdoSource($pdo); $source->setTableName('users'); // ...
Note
If the setTableName
is not specified, it always refer to the users
table.
When using PdoSource
, the value in the password
field will be assumed as a hash (e.g., $2y$10...
). If this is not the case, kindly add the withoutHash
method:
// index.php use Rougin\Authsum\Source\PdoSource; // ... $source = new PdoSource($pdo); $source->withoutHash(); // ...
Doing this will make a strict comparison of the provided password
against the result from the database.
JwtSource
The JwtSource
class is a special class that checks a user's authentication using JSON Web Token:
// index.php use Rougin\Authsum\Source\JwtSource; // ... /** @var \Rougin\Authsum\Source\JwtParserInterface */ $parser = /** ... */; $source = new JwtSource($parser);
From the example above, initializing JwtSource
requires a JwtParserInterface
for parsing the JSON web tokens from payload:
namespace Rougin\Authsum\Source; interface JwtParserInterface { /** * Parses the token string. * * @param string $token * * @return array<string, mixed> */ public function parse($token); }
If JwtSource
is used as a source, the token
field must be updated also from the Authsum
class based on the query parameter or parsed body where the token exists:
// index.php use Rougin\Authsum\Authsum; use Rougin\Authsum\Source\JwtSource; // ... $source = new JwtSource($parser); // Search "token" property from the payload --- $source->setTokenField('token'); // -------------------------------------------- $auth = new Authsum($source);
Note
If setTokenField
is not specified, its default value is token
.
Then use the setUsernameField
to specify the field to be compared against the parsed data from the JSON web token:
// index.php use Rougin\Authsum\Authsum; // ... $auth = new Authsum($source); // ... $auth->setUsernameField('email'); // The $_POST data should contains the --- // "token" field and the "email" field --- $valid = $auth->isValid($_POST); // ---------------------------------------
Creating custom sources
To create a custom source, kindly use the SourceInterface
for its implementation:
namespace Rougin\Authsum\Source; interface SourceInterface { /** * Returns the error after validation. * * @return \Rougin\Authsum\Error */ public function getError(); /** * Returns the result after validation. * * @return \Rougin\Authsum\Result */ public function getResult(); /** * Checks if it exists from the source. * * @return boolean */ public function isValid(); }
If the custom source requires an username
field, kindly add the WithUsername
interface:
namespace Rougin\Authsum\Source; interface WithUsername { /** * Sets the username field. * * @param string $username * * @return self */ public function setUsernameField($username); /** * Sets the username. * * @param string $username * * @return self */ public function setUsernameValue($username); }
The WithPassword
interface can be also added if the custom source requires a password to be defined:
namespace Rougin\Authsum\Source; interface WithPassword { /** * Sets the password field. * * @param string $password * * @return self */ public function setPasswordField($password); /** * Sets the password value. * * @param string $password * * @return self */ public function setPasswordValue($password); }
Some custom sources may require to use the provided payload instead of username
and password
fields (e.g., JwtSource
). With this, kindly use the WithPayload
interface:
namespace Rougin\Authsum\Source; interface WithPayload { /** * Sets the prepared payload. * * @param array<string, string> $payload * * @return self */ public function setPayload($payload); }
Testing
If there is a need to check the source code of Authsum
for development purposes (e.g., creating fixes, new features, etc.), kindly clone this repository first to a local machine:
$ git clone https://github.com/rougin/authsum.git "Sample"
After cloning, use Composer
to install its required packages:
$ cd Sample
$ composer update
Note
Please see also the build.yml of Authsum
to check any packages that needs to be installed based on the PHP version.
Once the required packages were installed, kindly check the following below on how to maintain the code quality and styling guide when interacting the source code of Authsum
:
Unit tests
Authsum
also contains unit tests that were written in PHPUnit:
$ composer test
When creating fixes or implementing new features, it is recommended to run the above command to always check if the updated code introduces errors during development.
Code quality
To retain the code quality of Authsum
, a static code analysis code tool named PHPStan is being used during development. To start, kindly install the specified package in the global environment of Composer
:
$ composer global require phpstan/phpstan --dev
Once installed, PHPStan
can now be run using its namesake command:
$ cd Sample
$ phpstan
Note
When running phpstan
, it will use the phpstan.neon
file which is already provided by Authsum
.
Coding style
Aside from code quality, Authsum
also uses a tool named PHP Coding Standards Fixer for maintaining an opinionated style guide. To use this tooling, it needs also to be installed in the Composer
's global environment first:
$ composer global require friendsofphp/php-cs-fixer --dev
After its installation, kindly use the php-cs-fixer
command in the same Authsum
directory:
$ cd Sample
$ php-cs-fixer fix --config=phpstyle.php
The phpstyle.php
file provided by Authsum
currently follows the PSR-12 standard as its baseline for the coding style and uses Allman as its indentation style.
Note
Installing both PHPStan
and PHP Coding Standards Fixer
requires a minimum version of PHP at least 7.4
.
Changelog
Please see CHANGELOG for more information what has changed recently.
License
The MIT License (MIT). Please see LICENSE for more information.