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<?php
namespace Illuminate\Auth;
use Illuminate\Http\Request;
use Illuminate\Contracts\Auth\Guard;
use Illuminate\Contracts\Auth\UserProvider;
class TokenGuard implements Guard
{
use GuardHelpers;
/**
* The request instance.
*
* @var \Illuminate\Http\Request
*/
protected $request;
/**
* The name of the query string item from the request containing the API token.
*
* @var string
*/
protected $inputKey;
/**
* The name of the token "column" in persistent storage.
*
* @var string
*/
protected $storageKey;
/**
* Create a new authentication guard.
*
* @param \Illuminate\Contracts\Auth\UserProvider $provider
* @param \Illuminate\Http\Request $request
* @param string $inputKey
* @param string $storageKey
* @return void
*/
public function __construct(UserProvider $provider, Request $request, $inputKey = 'api_token', $storageKey = 'api_token')
{
$this->request = $request;
$this->provider = $provider;
$this->inputKey = $inputKey;
$this->storageKey = $storageKey;
}
/**
* Get the currently authenticated user.
*
* @return \Illuminate\Contracts\Auth\Authenticatable|null
*/
public function user()
{
// If we've already retrieved the user for the current request we can just
// return it back immediately. We do not want to fetch the user data on
// every call to this method because that would be tremendously slow.
if (! is_null($this->user)) {
return $this->user;
}
$user = null;
$token = $this->getTokenForRequest();
if (! empty($token)) {
$user = $this->provider->retrieveByCredentials(
[$this->storageKey => $token]
);
}
return $this->user = $user;
}
/**
* Get the token for the current request.
*
* @return string
*/
public function getTokenForRequest()
{
$token = $this->request->query($this->inputKey);
if (empty($token)) {
$token = $this->request->input($this->inputKey);
}
if (empty($token)) {
$token = $this->request->bearerToken();
}
if (empty($token)) {
$token = $this->request->getPassword();
}
return $token;
}
/**
* Validate a user's credentials.
*
* @param array $credentials
* @return bool
*/
public function validate(array $credentials = [])
{
if (empty($credentials[$this->inputKey])) {
return false;
}
$credentials = [$this->storageKey => $credentials[$this->inputKey]];
if ($this->provider->retrieveByCredentials($credentials)) {
return true;
}
return false;
}
/**
* Set the current request instance.
*
* @param \Illuminate\Http\Request $request
* @return $this
*/
public function setRequest(Request $request)
{
$this->request = $request;
return $this;
}
}