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<?php |
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namespace ElfSundae\Laravel\Api\Middleware; |
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use Closure; |
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use Illuminate\Http\Request; |
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use ElfSundae\Laravel\Api\Token; |
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use ElfSundae\Laravel\Api\Helper; |
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use ElfSundae\Laravel\Api\Exceptions\InvalidApiTokenException; |
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class VerifyApiToken |
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{ |
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/** |
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* The Token instance. |
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* |
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* @var \ElfSundae\Laravel\Api\Token |
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*/ |
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protected $token; |
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/** |
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* The URIs that should be excluded from token verification. |
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* |
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* @var array |
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*/ |
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protected $except = []; |
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/** |
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* Create the middleware. |
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* |
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* @param \ElfSundae\Laravel\Api\Token $token |
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*/ |
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public function __construct(Token $token) |
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{ |
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$this->token = $token; |
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} |
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/** |
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* Handle an incoming request. |
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* |
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* @param \Illuminate\Http\Request $request |
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* @param \Closure $next |
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* @return mixed |
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* |
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* @throws \ElfSundae\Laravel\Api\Exceptions\InvalidApiTokenException |
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*/ |
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public function handle($request, Closure $next) |
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{ |
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if ($this->inExceptArray($request) || $this->verifyToken($request)) { |
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return $next( |
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Helper::setCurrentAppKeyForRequest($this->getKeyFromRequest($request), $request) |
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); |
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} |
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throw new InvalidApiTokenException; |
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} |
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/** |
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* Determine if the request has a URI that should be passed through verification. |
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* |
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* @param \Illuminate\Http\Request $request |
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* @return bool |
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*/ |
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protected function inExceptArray(Request $request) |
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{ |
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foreach ($this->except as $except) { |
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if ($except !== '/') { |
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$except = trim($except, '/'); |
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} |
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if ($request->is($except)) { |
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return true; |
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} |
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} |
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return false; |
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} |
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/** |
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* Verify the api token from request. |
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* |
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* @param \Illuminate\Http\Request $request |
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* @return bool |
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*/ |
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protected function verifyToken(Request $request) |
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{ |
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$time = (int) ($request->input('_time') ?: $request->header('X-API-TIME')); |
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$token = $request->input('_token') ?: $request->header('X-API-TOKEN'); |
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return abs(time() - $time) < (int) config('api.token_duration') && |
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$this->token->verify($token, $this->getKeyFromRequest($request), $time); |
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} |
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/** |
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* Get the app key from the request. |
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* |
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* @param \Illuminate\Http\Request $request |
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* @return string |
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*/ |
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protected function getKeyFromRequest(Request $request) |
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{ |
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return $request->input('_key') ?: $request->header('X-API-KEY'); |
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} |
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} |
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