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   1: <?php
   2: 
   3: /**
   4:  * This file is part of the Nette Framework (https://nette.org)
   5:  * Copyright (c) 2004 David Grudl (https://davidgrudl.com)
   6:  */
   7: 
   8: namespace Nette\Application\UI;
   9: 
  10: use Nette;
  11: use Nette\Application;
  12: use Nette\Application\Responses;
  13: use Nette\Application\Helpers;
  14: use Nette\Http;
  15: 
  16: 
  17: /**
  18:  * Presenter component represents a webpage instance. It converts Request to IResponse.
  19:  *
  20:  * @property-read Nette\Application\Request $request
  21:  * @property-read string $action
  22:  * @property      string $view
  23:  * @property      string $layout
  24:  * @property-read \stdClass $payload
  25:  * @property-read Nette\DI\Container $context
  26:  * @property-read Nette\Http\Session $session
  27:  * @property-read Nette\Security\User $user
  28:  */
  29: abstract class Presenter extends Control implements Application\IPresenter
  30: {
  31:     /** bad link handling {@link Presenter::$invalidLinkMode} */
  32:     const INVALID_LINK_SILENT = 0b0000,
  33:         INVALID_LINK_WARNING = 0b0001,
  34:         INVALID_LINK_EXCEPTION = 0b0010,
  35:         INVALID_LINK_TEXTUAL = 0b0100;
  36: 
  37:     /** @internal special parameter key */
  38:     const SIGNAL_KEY = 'do',
  39:         ACTION_KEY = 'action',
  40:         FLASH_KEY = '_fid',
  41:         DEFAULT_ACTION = 'default';
  42: 
  43:     /** @var int */
  44:     public $invalidLinkMode;
  45: 
  46:     /** @var callable[]  function (Presenter $sender, IResponse $response = NULL); Occurs when the presenter is shutting down */
  47:     public $onShutdown;
  48: 
  49:     /** @var Nette\Application\Request */
  50:     private $request;
  51: 
  52:     /** @var Nette\Application\IResponse */
  53:     private $response;
  54: 
  55:     /** @var bool  automatically call canonicalize() */
  56:     public $autoCanonicalize = TRUE;
  57: 
  58:     /** @var bool  use absolute Urls or paths? */
  59:     public $absoluteUrls = FALSE;
  60: 
  61:     /** @var array */
  62:     private $globalParams;
  63: 
  64:     /** @var array */
  65:     private $globalState;
  66: 
  67:     /** @var array */
  68:     private $globalStateSinces;
  69: 
  70:     /** @var string */
  71:     private $action;
  72: 
  73:     /** @var string */
  74:     private $view;
  75: 
  76:     /** @var string */
  77:     private $layout;
  78: 
  79:     /** @var \stdClass */
  80:     private $payload;
  81: 
  82:     /** @var string */
  83:     private $signalReceiver;
  84: 
  85:     /** @var string */
  86:     private $signal;
  87: 
  88:     /** @var bool */
  89:     private $ajaxMode;
  90: 
  91:     /** @var bool */
  92:     private $startupCheck;
  93: 
  94:     /** @var Nette\Application\Request */
  95:     private $lastCreatedRequest;
  96: 
  97:     /** @var array */
  98:     private $lastCreatedRequestFlag;
  99: 
 100:     /** @var Nette\DI\Container */
 101:     private $context;
 102: 
 103:     /** @var Nette\Http\IRequest */
 104:     private $httpRequest;
 105: 
 106:     /** @var Nette\Http\IResponse */
 107:     private $httpResponse;
 108: 
 109:     /** @var Nette\Http\Session */
 110:     private $session;
 111: 
 112:     /** @var Nette\Application\IPresenterFactory */
 113:     private $presenterFactory;
 114: 
 115:     /** @var Nette\Application\IRouter */
 116:     private $router;
 117: 
 118:     /** @var Nette\Security\User */
 119:     private $user;
 120: 
 121:     /** @var ITemplateFactory */
 122:     private $templateFactory;
 123: 
 124:     /** @var Nette\Http\Url */
 125:     private $refUrlCache;
 126: 
 127: 
 128:     public function __construct()
 129:     {
 130:         $this->payload = new \stdClass;
 131:     }
 132: 
 133: 
 134:     /**
 135:      * @return Nette\Application\Request
 136:      */
 137:     public function getRequest()
 138:     {
 139:         return $this->request;
 140:     }
 141: 
 142: 
 143:     /**
 144:      * Returns self.
 145:      * @return Presenter
 146:      */
 147:     public function getPresenter($need = TRUE)
 148:     {
 149:         return $this;
 150:     }
 151: 
 152: 
 153:     /**
 154:      * Returns a name that uniquely identifies component.
 155:      * @return string
 156:      */
 157:     public function getUniqueId()
 158:     {
 159:         return '';
 160:     }
 161: 
 162: 
 163:     /********************* interface IPresenter ****************d*g**/
 164: 
 165: 
 166:     /**
 167:      * @return Nette\Application\IResponse
 168:      */
 169:     public function run(Application\Request $request)
 170:     {
 171:         try {
 172:             // STARTUP
 173:             $this->request = $request;
 174:             $this->payload = $this->payload ?: new \stdClass;
 175:             $this->setParent($this->getParent(), $request->getPresenterName());
 176: 
 177:             if (!$this->httpResponse->isSent()) {
 178:                 $this->httpResponse->addHeader('Vary', 'X-Requested-With');
 179:             }
 180: 
 181:             $this->initGlobalParameters();
 182:             $this->checkRequirements($this->getReflection());
 183:             $this->startup();
 184:             if (!$this->startupCheck) {
 185:                 $class = $this->getReflection()->getMethod('startup')->getDeclaringClass()->getName();
 186:                 throw new Nette\InvalidStateException("Method $class::startup() or its descendant doesn't call parent::startup().");
 187:             }
 188:             // calls $this->action<Action>()
 189:             $this->tryCall($this->formatActionMethod($this->action), $this->params);
 190: 
 191:             // autoload components
 192:             foreach ($this->globalParams as $id => $foo) {
 193:                 $this->getComponent($id, FALSE);
 194:             }
 195: 
 196:             if ($this->autoCanonicalize) {
 197:                 $this->canonicalize();
 198:             }
 199:             if ($this->httpRequest->isMethod('head')) {
 200:                 $this->terminate();
 201:             }
 202: 
 203:             // SIGNAL HANDLING
 204:             // calls $this->handle<Signal>()
 205:             $this->processSignal();
 206: 
 207:             // RENDERING VIEW
 208:             $this->beforeRender();
 209:             // calls $this->render<View>()
 210:             $this->tryCall($this->formatRenderMethod($this->view), $this->params);
 211:             $this->afterRender();
 212: 
 213:             // save component tree persistent state
 214:             $this->saveGlobalState();
 215:             if ($this->isAjax()) {
 216:                 $this->payload->state = $this->getGlobalState();
 217:             }
 218: 
 219:             // finish template rendering
 220:             if ($this->getTemplate()) {
 221:                 $this->sendTemplate();
 222:             }
 223: 
 224:         } catch (Application\AbortException $e) {
 225:             // continue with shutting down
 226:             if ($this->isAjax()) {
 227:                 try {
 228:                     $hasPayload = (array) $this->payload;
 229:                     unset($hasPayload['state']);
 230:                     if ($this->response instanceof Responses\TextResponse && $this->isControlInvalid()) {
 231:                         $this->snippetMode = TRUE;
 232:                         $this->response->send($this->httpRequest, $this->httpResponse);
 233:                         $this->sendPayload();
 234:                     } elseif (!$this->response && $hasPayload) { // back compatibility for use terminate() instead of sendPayload()
 235:                         trigger_error('Use $presenter->sendPayload() instead of terminate() to send payload.');
 236:                         $this->sendPayload();
 237:                     }
 238:                 } catch (Application\AbortException $e) {
 239:                 }
 240:             }
 241: 
 242:             if ($this->hasFlashSession()) {
 243:                 $this->getFlashSession()->setExpiration($this->response instanceof Responses\RedirectResponse ? '+ 30 seconds' : '+ 3 seconds');
 244:             }
 245: 
 246:             // SHUTDOWN
 247:             $this->onShutdown($this, $this->response);
 248:             $this->shutdown($this->response);
 249: 
 250:             return $this->response;
 251:         }
 252:     }
 253: 
 254: 
 255:     /**
 256:      * @return void
 257:      */
 258:     protected function startup()
 259:     {
 260:         $this->startupCheck = TRUE;
 261:     }
 262: 
 263: 
 264:     /**
 265:      * Common render method.
 266:      * @return void
 267:      */
 268:     protected function beforeRender()
 269:     {
 270:     }
 271: 
 272: 
 273:     /**
 274:      * Common render method.
 275:      * @return void
 276:      */
 277:     protected function afterRender()
 278:     {
 279:     }
 280: 
 281: 
 282:     /**
 283:      * @param  Nette\Application\IResponse
 284:      * @return void
 285:      */
 286:     protected function shutdown($response)
 287:     {
 288:     }
 289: 
 290: 
 291:     /**
 292:      * Checks authorization.
 293:      * @return void
 294:      */
 295:     public function checkRequirements($element)
 296:     {
 297:         $user = (array) ComponentReflection::parseAnnotation($element, 'User');
 298:         if (in_array('loggedIn', $user, TRUE) && !$this->getUser()->isLoggedIn()) {
 299:             throw new Application\ForbiddenRequestException;
 300:         }
 301:     }
 302: 
 303: 
 304:     /********************* signal handling ****************d*g**/
 305: 
 306: 
 307:     /**
 308:      * @return void
 309:      * @throws BadSignalException
 310:      */
 311:     public function processSignal()
 312:     {
 313:         if ($this->signal === NULL) {
 314:             return;
 315:         }
 316: 
 317:         $component = $this->signalReceiver === '' ? $this : $this->getComponent($this->signalReceiver, FALSE);
 318:         if ($component === NULL) {
 319:             throw new BadSignalException("The signal receiver component '$this->signalReceiver' is not found.");
 320: 
 321:         } elseif (!$component instanceof ISignalReceiver) {
 322:             throw new BadSignalException("The signal receiver component '$this->signalReceiver' is not ISignalReceiver implementor.");
 323:         }
 324: 
 325:         $component->signalReceived($this->signal);
 326:         $this->signal = NULL;
 327:     }
 328: 
 329: 
 330:     /**
 331:      * Returns pair signal receiver and name.
 332:      * @return array|NULL
 333:      */
 334:     public function getSignal()
 335:     {
 336:         return $this->signal === NULL ? NULL : [$this->signalReceiver, $this->signal];
 337:     }
 338: 
 339: 
 340:     /**
 341:      * Checks if the signal receiver is the given one.
 342:      * @param  mixed  component or its id
 343:      * @param  string signal name (optional)
 344:      * @return bool
 345:      */
 346:     public function isSignalReceiver($component, $signal = NULL)
 347:     {
 348:         if ($component instanceof Nette\ComponentModel\Component) {
 349:             $component = $component === $this ? '' : $component->lookupPath(__CLASS__, TRUE);
 350:         }
 351: 
 352:         if ($this->signal === NULL) {
 353:             return FALSE;
 354: 
 355:         } elseif ($signal === TRUE) {
 356:             return $component === ''
 357:                 || strncmp($this->signalReceiver . '-', $component . '-', strlen($component) + 1) === 0;
 358: 
 359:         } elseif ($signal === NULL) {
 360:             return $this->signalReceiver === $component;
 361: 
 362:         } else {
 363:             return $this->signalReceiver === $component && strcasecmp($signal, $this->signal) === 0;
 364:         }
 365:     }
 366: 
 367: 
 368:     /********************* rendering ****************d*g**/
 369: 
 370: 
 371:     /**
 372:      * Returns current action name.
 373:      * @return string
 374:      */
 375:     public function getAction($fullyQualified = FALSE)
 376:     {
 377:         return $fullyQualified ? ':' . $this->getName() . ':' . $this->action : $this->action;
 378:     }
 379: 
 380: 
 381:     /**
 382:      * Changes current action. Only alphanumeric characters are allowed.
 383:      * @param  string
 384:      * @return void
 385:      */
 386:     public function changeAction($action)
 387:     {
 388:         if (is_string($action) && Nette\Utils\Strings::match($action, '#^[a-zA-Z0-9][a-zA-Z0-9_\x7f-\xff]*\z#')) {
 389:             $this->action = $action;
 390:             $this->view = $action;
 391: 
 392:         } else {
 393:             $this->error('Action name is not alphanumeric string.');
 394:         }
 395:     }
 396: 
 397: 
 398:     /**
 399:      * Returns current view.
 400:      * @return string
 401:      */
 402:     public function getView()
 403:     {
 404:         return $this->view;
 405:     }
 406: 
 407: 
 408:     /**
 409:      * Changes current view. Any name is allowed.
 410:      * @param  string
 411:      * @return static
 412:      */
 413:     public function setView($view)
 414:     {
 415:         $this->view = (string) $view;
 416:         return $this;
 417:     }
 418: 
 419: 
 420:     /**
 421:      * Returns current layout name.
 422:      * @return string|FALSE
 423:      */
 424:     public function getLayout()
 425:     {
 426:         return $this->layout;
 427:     }
 428: 
 429: 
 430:     /**
 431:      * Changes or disables layout.
 432:      * @param  string|FALSE
 433:      * @return static
 434:      */
 435:     public function setLayout($layout)
 436:     {
 437:         $this->layout = $layout === FALSE ? FALSE : (string) $layout;
 438:         return $this;
 439:     }
 440: 
 441: 
 442:     /**
 443:      * @return void
 444:      * @throws Nette\Application\BadRequestException if no template found
 445:      * @throws Nette\Application\AbortException
 446:      */
 447:     public function sendTemplate()
 448:     {
 449:         $template = $this->getTemplate();
 450:         if (!$template->getFile()) {
 451:             $files = $this->formatTemplateFiles();
 452:             foreach ($files as $file) {
 453:                 if (is_file($file)) {
 454:                     $template->setFile($file);
 455:                     break;
 456:                 }
 457:             }
 458: 
 459:             if (!$template->getFile()) {
 460:                 $file = preg_replace('#^.*([/\\\\].{1,70})\z#U', "\xE2\x80\xA6\$1", reset($files));
 461:                 $file = strtr($file, '/', DIRECTORY_SEPARATOR);
 462:                 $this->error("Page not found. Missing template '$file'.");
 463:             }
 464:         }
 465: 
 466:         $this->sendResponse(new Responses\TextResponse($template));
 467:     }
 468: 
 469: 
 470:     /**
 471:      * Finds layout template file name.
 472:      * @return string
 473:      * @internal
 474:      */
 475:     public function findLayoutTemplateFile()
 476:     {
 477:         if ($this->layout === FALSE) {
 478:             return;
 479:         }
 480:         $files = $this->formatLayoutTemplateFiles();
 481:         foreach ($files as $file) {
 482:             if (is_file($file)) {
 483:                 return $file;
 484:             }
 485:         }
 486: 
 487:         if ($this->layout) {
 488:             $file = preg_replace('#^.*([/\\\\].{1,70})\z#U', "\xE2\x80\xA6\$1", reset($files));
 489:             $file = strtr($file, '/', DIRECTORY_SEPARATOR);
 490:             throw new Nette\FileNotFoundException("Layout not found. Missing template '$file'.");
 491:         }
 492:     }
 493: 
 494: 
 495:     /**
 496:      * Formats layout template file names.
 497:      * @return array
 498:      */
 499:     public function formatLayoutTemplateFiles()
 500:     {
 501:         if (preg_match('#/|\\\\#', $this->layout)) {
 502:             return [$this->layout];
 503:         }
 504:         list($module, $presenter) = Helpers::splitName($this->getName());
 505:         $layout = $this->layout ? $this->layout : 'layout';
 506:         $dir = dirname($this->getReflection()->getFileName());
 507:         $dir = is_dir("$dir/templates") ? $dir : dirname($dir);
 508:         $list = [
 509:             "$dir/templates/$presenter/@$layout.latte",
 510:             "$dir/templates/$presenter.@$layout.latte",
 511:         ];
 512:         do {
 513:             $list[] = "$dir/templates/@$layout.latte";
 514:             $dir = dirname($dir);
 515:         } while ($dir && $module && (list($module) = Helpers::splitName($module)));
 516:         return $list;
 517:     }
 518: 
 519: 
 520:     /**
 521:      * Formats view template file names.
 522:      * @return array
 523:      */
 524:     public function formatTemplateFiles()
 525:     {
 526:         list(, $presenter) = Helpers::splitName($this->getName());
 527:         $dir = dirname($this->getReflection()->getFileName());
 528:         $dir = is_dir("$dir/templates") ? $dir : dirname($dir);
 529:         return [
 530:             "$dir/templates/$presenter/$this->view.latte",
 531:             "$dir/templates/$presenter.$this->view.latte",
 532:         ];
 533:     }
 534: 
 535: 
 536:     /**
 537:      * Formats action method name.
 538:      * @param  string
 539:      * @return string
 540:      */
 541:     public static function formatActionMethod($action)
 542:     {
 543:         return 'action' . $action;
 544:     }
 545: 
 546: 
 547:     /**
 548:      * Formats render view method name.
 549:      * @param  string
 550:      * @return string
 551:      */
 552:     public static function formatRenderMethod($view)
 553:     {
 554:         return 'render' . $view;
 555:     }
 556: 
 557: 
 558:     /**
 559:      * @return ITemplate
 560:      */
 561:     protected function createTemplate()
 562:     {
 563:         return $this->getTemplateFactory()->createTemplate($this);
 564:     }
 565: 
 566: 
 567:     /********************* partial AJAX rendering ****************d*g**/
 568: 
 569: 
 570:     /**
 571:      * @return \stdClass
 572:      */
 573:     public function getPayload()
 574:     {
 575:         return $this->payload;
 576:     }
 577: 
 578: 
 579:     /**
 580:      * Is AJAX request?
 581:      * @return bool
 582:      */
 583:     public function isAjax()
 584:     {
 585:         if ($this->ajaxMode === NULL) {
 586:             $this->ajaxMode = $this->httpRequest->isAjax();
 587:         }
 588:         return $this->ajaxMode;
 589:     }
 590: 
 591: 
 592:     /**
 593:      * Sends AJAX payload to the output.
 594:      * @return void
 595:      * @throws Nette\Application\AbortException
 596:      */
 597:     public function sendPayload()
 598:     {
 599:         $this->sendResponse(new Responses\JsonResponse($this->payload));
 600:     }
 601: 
 602: 
 603:     /**
 604:      * Sends JSON data to the output.
 605:      * @param  mixed
 606:      * @return void
 607:      * @throws Nette\Application\AbortException
 608:      */
 609:     public function sendJson($data)
 610:     {
 611:         $this->sendResponse(new Responses\JsonResponse($data));
 612:     }
 613: 
 614: 
 615:     /********************* navigation & flow ****************d*g**/
 616: 
 617: 
 618:     /**
 619:      * Sends response and terminates presenter.
 620:      * @return void
 621:      * @throws Nette\Application\AbortException
 622:      */
 623:     public function sendResponse(Application\IResponse $response)
 624:     {
 625:         $this->response = $response;
 626:         $this->terminate();
 627:     }
 628: 
 629: 
 630:     /**
 631:      * Correctly terminates presenter.
 632:      * @return void
 633:      * @throws Nette\Application\AbortException
 634:      */
 635:     public function terminate()
 636:     {
 637:         throw new Application\AbortException();
 638:     }
 639: 
 640: 
 641:     /**
 642:      * Forward to another presenter or action.
 643:      * @param  string|Nette\Application\Request
 644:      * @param  array|mixed
 645:      * @return void
 646:      * @throws Nette\Application\AbortException
 647:      */
 648:     public function forward($destination, $args = [])
 649:     {
 650:         if ($destination instanceof Application\Request) {
 651:             $this->sendResponse(new Responses\ForwardResponse($destination));
 652:         }
 653: 
 654:         $args = func_num_args() < 3 && is_array($args) ? $args : array_slice(func_get_args(), 1);
 655:         $this->createRequest($this, $destination, $args, 'forward');
 656:         $this->sendResponse(new Responses\ForwardResponse($this->lastCreatedRequest));
 657:     }
 658: 
 659: 
 660:     /**
 661:      * Redirect to another URL and ends presenter execution.
 662:      * @param  string
 663:      * @param  int HTTP error code
 664:      * @return void
 665:      * @throws Nette\Application\AbortException
 666:      */
 667:     public function redirectUrl($url, $code = NULL)
 668:     {
 669:         if ($this->isAjax()) {
 670:             $this->payload->redirect = (string) $url;
 671:             $this->sendPayload();
 672: 
 673:         } elseif (!$code) {
 674:             $code = $this->httpRequest->isMethod('post')
 675:                 ? Http\IResponse::S303_POST_GET
 676:                 : Http\IResponse::S302_FOUND;
 677:         }
 678:         $this->sendResponse(new Responses\RedirectResponse($url, $code));
 679:     }
 680: 
 681: 
 682:     /**
 683:      * Throws HTTP error.
 684:      * @param  string
 685:      * @param  int HTTP error code
 686:      * @return void
 687:      * @throws Nette\Application\BadRequestException
 688:      */
 689:     public function error($message = NULL, $code = Http\IResponse::S404_NOT_FOUND)
 690:     {
 691:         throw new Application\BadRequestException($message, $code);
 692:     }
 693: 
 694: 
 695:     /**
 696:      * Link to myself.
 697:      * @return string
 698:      * @deprecated
 699:      */
 700:     public function backlink()
 701:     {
 702:         trigger_error(__METHOD__ . '() is deprecated.', E_USER_DEPRECATED);
 703:         return $this->getAction(TRUE);
 704:     }
 705: 
 706: 
 707:     /**
 708:      * Returns the last created Request.
 709:      * @return Nette\Application\Request
 710:      * @internal
 711:      */
 712:     public function getLastCreatedRequest()
 713:     {
 714:         return $this->lastCreatedRequest;
 715:     }
 716: 
 717: 
 718:     /**
 719:      * Returns the last created Request flag.
 720:      * @param  string
 721:      * @return bool
 722:      * @internal
 723:      */
 724:     public function getLastCreatedRequestFlag($flag)
 725:     {
 726:         return !empty($this->lastCreatedRequestFlag[$flag]);
 727:     }
 728: 
 729: 
 730:     /**
 731:      * Conditional redirect to canonicalized URI.
 732:      * @return void
 733:      * @throws Nette\Application\AbortException
 734:      */
 735:     public function canonicalize()
 736:     {
 737:         if (!$this->isAjax() && ($this->request->isMethod('get') || $this->request->isMethod('head'))) {
 738:             try {
 739:                 $url = $this->createRequest($this, $this->action, $this->getGlobalState() + $this->request->getParameters(), 'redirectX');
 740:             } catch (InvalidLinkException $e) {
 741:             }
 742:             if (isset($url) && !$this->httpRequest->getUrl()->isEqual($url)) {
 743:                 $this->sendResponse(new Responses\RedirectResponse($url, Http\IResponse::S301_MOVED_PERMANENTLY));
 744:             }
 745:         }
 746:     }
 747: 
 748: 
 749:     /**
 750:      * Attempts to cache the sent entity by its last modification date.
 751:      * @param  string|int|\DateTimeInterface  last modified time
 752:      * @param  string strong entity tag validator
 753:      * @param  mixed  optional expiration time
 754:      * @return void
 755:      * @throws Nette\Application\AbortException
 756:      */
 757:     public function lastModified($lastModified, $etag = NULL, $expire = NULL)
 758:     {
 759:         if ($expire !== NULL) {
 760:             $this->httpResponse->setExpiration($expire);
 761:         }
 762:         $helper = new Http\Context($this->httpRequest, $this->httpResponse);
 763:         if (!$helper->isModified($lastModified, $etag)) {
 764:             $this->terminate();
 765:         }
 766:     }
 767: 
 768: 
 769:     /**
 770:      * Request/URL factory.
 771:      * @param  Component  base
 772:      * @param  string   destination in format "[//] [[[module:]presenter:]action | signal! | this] [#fragment]"
 773:      * @param  array    array of arguments
 774:      * @param  string   forward|redirect|link
 775:      * @return string   URL
 776:      * @throws InvalidLinkException
 777:      * @internal
 778:      */
 779:     protected function createRequest($component, $destination, array $args, $mode)
 780:     {
 781:         // note: createRequest supposes that saveState(), run() & tryCall() behaviour is final
 782: 
 783:         $this->lastCreatedRequest = $this->lastCreatedRequestFlag = NULL;
 784: 
 785:         // PARSE DESTINATION
 786:         // 1) fragment
 787:         $a = strpos($destination, '#');
 788:         if ($a === FALSE) {
 789:             $fragment = '';
 790:         } else {
 791:             $fragment = substr($destination, $a);
 792:             $destination = substr($destination, 0, $a);
 793:         }
 794: 
 795:         // 2) ?query syntax
 796:         $a = strpos($destination, '?');
 797:         if ($a !== FALSE) {
 798:             parse_str(substr($destination, $a + 1), $args);
 799:             $destination = substr($destination, 0, $a);
 800:         }
 801: 
 802:         // 3) URL scheme
 803:         $a = strpos($destination, '//');
 804:         if ($a === FALSE) {
 805:             $scheme = FALSE;
 806:         } else {
 807:             $scheme = substr($destination, 0, $a);
 808:             $destination = substr($destination, $a + 2);
 809:         }
 810: 
 811:         // 4) signal or empty
 812:         if (!$component instanceof self || substr($destination, -1) === '!') {
 813:             list($cname, $signal) = Helpers::splitName(rtrim($destination, '!'));
 814:             if ($cname !== '') {
 815:                 $component = $component->getComponent(strtr($cname, ':', '-'));
 816:             }
 817:             if ($signal === '') {
 818:                 throw new InvalidLinkException('Signal must be non-empty string.');
 819:             }
 820:             $destination = 'this';
 821:         }
 822: 
 823:         if ($destination == NULL) {  // intentionally ==
 824:             throw new InvalidLinkException('Destination must be non-empty string.');
 825:         }
 826: 
 827:         // 5) presenter: action
 828:         $current = FALSE;
 829:         list($presenter, $action) = Helpers::splitName($destination);
 830:         if ($presenter === '') {
 831:             $action = $destination === 'this' ? $this->action : $action;
 832:             $presenter = $this->getName();
 833:             $presenterClass = get_class($this);
 834: 
 835:         } else {
 836:             if ($presenter[0] === ':') { // absolute
 837:                 $presenter = substr($presenter, 1);
 838:                 if (!$presenter) {
 839:                     throw new InvalidLinkException("Missing presenter name in '$destination'.");
 840:                 }
 841:             } else { // relative
 842:                 list($module, , $sep) = Helpers::splitName($this->getName());
 843:                 $presenter = $module . $sep . $presenter;
 844:             }
 845:             if (!$this->presenterFactory) {
 846:                 throw new Nette\InvalidStateException('Unable to create link to other presenter, service PresenterFactory has not been set.');
 847:             }
 848:             try {
 849:                 $presenterClass = $this->presenterFactory->getPresenterClass($presenter);
 850:             } catch (Application\InvalidPresenterException $e) {
 851:                 throw new InvalidLinkException($e->getMessage(), NULL, $e);
 852:             }
 853:         }
 854: 
 855:         // PROCESS SIGNAL ARGUMENTS
 856:         if (isset($signal)) { // $component must be IStatePersistent
 857:             $reflection = new ComponentReflection(get_class($component));
 858:             if ($signal === 'this') { // means "no signal"
 859:                 $signal = '';
 860:                 if (array_key_exists(0, $args)) {
 861:                     throw new InvalidLinkException("Unable to pass parameters to 'this!' signal.");
 862:                 }
 863: 
 864:             } elseif (strpos($signal, self::NAME_SEPARATOR) === FALSE) {
 865:                 // counterpart of signalReceived() & tryCall()
 866:                 $method = $component->formatSignalMethod($signal);
 867:                 if (!$reflection->hasCallableMethod($method)) {
 868:                     throw new InvalidLinkException("Unknown signal '$signal', missing handler {$reflection->getName()}::$method()");
 869:                 }
 870:                 // convert indexed parameters to named
 871:                 self::argsToParams(get_class($component), $method, $args, [], $missing);
 872:             }
 873: 
 874:             // counterpart of IStatePersistent
 875:             if ($args && array_intersect_key($args, $reflection->getPersistentParams())) {
 876:                 $component->saveState($args);
 877:             }
 878: 
 879:             if ($args && $component !== $this) {
 880:                 $prefix = $component->getUniqueId() . self::NAME_SEPARATOR;
 881:                 foreach ($args as $key => $val) {
 882:                     unset($args[$key]);
 883:                     $args[$prefix . $key] = $val;
 884:                 }
 885:             }
 886:         }
 887: 
 888:         // PROCESS ARGUMENTS
 889:         if (is_subclass_of($presenterClass, __CLASS__)) {
 890:             if ($action === '') {
 891:                 $action = self::DEFAULT_ACTION;
 892:             }
 893: 
 894:             $current = ($action === '*' || strcasecmp($action, $this->action) === 0) && $presenterClass === get_class($this);
 895: 
 896:             $reflection = new ComponentReflection($presenterClass);
 897: 
 898:             // counterpart of run() & tryCall()
 899:             $method = $presenterClass::formatActionMethod($action);
 900:             if (!$reflection->hasCallableMethod($method)) {
 901:                 $method = $presenterClass::formatRenderMethod($action);
 902:                 if (!$reflection->hasCallableMethod($method)) {
 903:                     $method = NULL;
 904:                 }
 905:             }
 906: 
 907:             // convert indexed parameters to named
 908:             if ($method === NULL) {
 909:                 if (array_key_exists(0, $args)) {
 910:                     throw new InvalidLinkException("Unable to pass parameters to action '$presenter:$action', missing corresponding method.");
 911:                 }
 912:             } else {
 913:                 self::argsToParams($presenterClass, $method, $args, $destination === 'this' ? $this->params : [], $missing);
 914:             }
 915: 
 916:             // counterpart of IStatePersistent
 917:             if ($args && array_intersect_key($args, $reflection->getPersistentParams())) {
 918:                 $this->saveState($args, $reflection);
 919:             }
 920: 
 921:             if ($mode === 'redirect') {
 922:                 $this->saveGlobalState();
 923:             }
 924: 
 925:             $globalState = $this->getGlobalState($destination === 'this' ? NULL : $presenterClass);
 926:             if ($current && $args) {
 927:                 $tmp = $globalState + $this->params;
 928:                 foreach ($args as $key => $val) {
 929:                     if (http_build_query([$val]) !== (isset($tmp[$key]) ? http_build_query([$tmp[$key]]) : '')) {
 930:                         $current = FALSE;
 931:                         break;
 932:                     }
 933:                 }
 934:             }
 935:             $args += $globalState;
 936:         }
 937: 
 938:         if ($mode !== 'test' && !empty($missing)) {
 939:             foreach ($missing as $rp) {
 940:                 if (!array_key_exists($rp->getName(), $args)) {
 941:                     throw new InvalidLinkException("Missing parameter \${$rp->getName()} required by {$rp->getDeclaringClass()->getName()}::{$rp->getDeclaringFunction()->getName()}()");
 942:                 }
 943:             }
 944:         }
 945: 
 946:         // ADD ACTION & SIGNAL & FLASH
 947:         if ($action) {
 948:             $args[self::ACTION_KEY] = $action;
 949:         }
 950:         if (!empty($signal)) {
 951:             $args[self::SIGNAL_KEY] = $component->getParameterId($signal);
 952:             $current = $current && $args[self::SIGNAL_KEY] === $this->getParameter(self::SIGNAL_KEY);
 953:         }
 954:         if (($mode === 'redirect' || $mode === 'forward') && $this->hasFlashSession()) {
 955:             $args[self::FLASH_KEY] = $this->getFlashKey();
 956:         }
 957: 
 958:         $this->lastCreatedRequest = new Application\Request(
 959:             $presenter,
 960:             Application\Request::FORWARD,
 961:             $args,
 962:             [],
 963:             []
 964:         );
 965:         $this->lastCreatedRequestFlag = ['current' => $current];
 966: 
 967:         if ($mode === 'forward' || $mode === 'test') {
 968:             return;
 969:         }
 970: 
 971:         // CONSTRUCT URL
 972:         if ($this->refUrlCache === NULL) {
 973:             $this->refUrlCache = new Http\Url($this->httpRequest->getUrl());
 974:             $this->refUrlCache->setPath($this->httpRequest->getUrl()->getScriptPath());
 975:         }
 976:         if (!$this->router) {
 977:             throw new Nette\InvalidStateException('Unable to generate URL, service Router has not been set.');
 978:         }
 979:         $url = $this->router->constructUrl($this->lastCreatedRequest, $this->refUrlCache);
 980:         if ($url === NULL) {
 981:             unset($args[self::ACTION_KEY]);
 982:             $params = urldecode(http_build_query($args, NULL, ', '));
 983:             throw new InvalidLinkException("No route for $presenter:$action($params)");
 984:         }
 985: 
 986:         // make URL relative if possible
 987:         if ($mode === 'link' && $scheme === FALSE && !$this->absoluteUrls) {
 988:             $hostUrl = $this->refUrlCache->getHostUrl() . '/';
 989:             if (strncmp($url, $hostUrl, strlen($hostUrl)) === 0) {
 990:                 $url = substr($url, strlen($hostUrl) - 1);
 991:             }
 992:         }
 993: 
 994:         return $url . $fragment;
 995:     }
 996: 
 997: 
 998:     /**
 999:      * Converts list of arguments to named parameters.
1000:      * @param  string  class name
1001:      * @param  string  method name
1002:      * @param  array   arguments
1003:      * @param  array   supplemental arguments
1004:      * @param  ReflectionParameter[]  missing arguments
1005:      * @return void
1006:      * @throws InvalidLinkException
1007:      * @internal
1008:      */
1009:     public static function argsToParams($class, $method, &$args, $supplemental = [], &$missing = [])
1010:     {
1011:         $i = 0;
1012:         $rm = new \ReflectionMethod($class, $method);
1013:         foreach ($rm->getParameters() as $param) {
1014:             list($type, $isClass) = ComponentReflection::getParameterType($param);
1015:             $name = $param->getName();
1016: 
1017:             if (array_key_exists($i, $args)) {
1018:                 $args[$name] = $args[$i];
1019:                 unset($args[$i]);
1020:                 $i++;
1021: 
1022:             } elseif (array_key_exists($name, $args)) {
1023:                 // continue with process
1024: 
1025:             } elseif (array_key_exists($name, $supplemental)) {
1026:                 $args[$name] = $supplemental[$name];
1027:             }
1028: 
1029:             if (!isset($args[$name])) {
1030:                 if (!$param->isDefaultValueAvailable() && !$param->allowsNull() && $type !== 'NULL' && $type !== 'array') {
1031:                     $missing[] = $param;
1032:                     unset($args[$name]);
1033:                 }
1034:                 continue;
1035:             }
1036: 
1037:             if (!ComponentReflection::convertType($args[$name], $type, $isClass)) {
1038:                 throw new InvalidLinkException(sprintf(
1039:                     'Argument $%s passed to %s() must be %s, %s given.',
1040:                     $name,
1041:                     $rm->getDeclaringClass()->getName() . '::' . $rm->getName(),
1042:                     $type === 'NULL' ? 'scalar' : $type,
1043:                     is_object($args[$name]) ? get_class($args[$name]) : gettype($args[$name])
1044:                 ));
1045:             }
1046: 
1047:             $def = $param->isDefaultValueAvailable() ? $param->getDefaultValue() : NULL;
1048:             if ($args[$name] === $def || ($def === NULL && $args[$name] === '')) {
1049:                 $args[$name] = NULL; // value transmit is unnecessary
1050:             }
1051:         }
1052: 
1053:         if (array_key_exists($i, $args)) {
1054:             throw new InvalidLinkException("Passed more parameters than method $class::{$rm->getName()}() expects.");
1055:         }
1056:     }
1057: 
1058: 
1059:     /**
1060:      * Invalid link handler. Descendant can override this method to change default behaviour.
1061:      * @return string
1062:      * @throws InvalidLinkException
1063:      */
1064:     protected function handleInvalidLink(InvalidLinkException $e)
1065:     {
1066:         if ($this->invalidLinkMode & self::INVALID_LINK_EXCEPTION) {
1067:             throw $e;
1068:         } elseif ($this->invalidLinkMode & self::INVALID_LINK_WARNING) {
1069:             trigger_error('Invalid link: ' . $e->getMessage(), E_USER_WARNING);
1070:         }
1071:         return $this->invalidLinkMode & self::INVALID_LINK_TEXTUAL
1072:             ? '#error: ' . $e->getMessage()
1073:             : '#';
1074:     }
1075: 
1076: 
1077:     /********************* request serialization ****************d*g**/
1078: 
1079: 
1080:     /**
1081:      * Stores current request to session.
1082:      * @param  mixed  optional expiration time
1083:      * @return string key
1084:      */
1085:     public function storeRequest($expiration = '+ 10 minutes')
1086:     {
1087:         $session = $this->getSession('Nette.Application/requests');
1088:         do {
1089:             $key = Nette\Utils\Random::generate(5);
1090:         } while (isset($session[$key]));
1091: 
1092:         $session[$key] = [$this->user ? $this->user->getId() : NULL, $this->request];
1093:         $session->setExpiration($expiration, $key);
1094:         return $key;
1095:     }
1096: 
1097: 
1098:     /**
1099:      * Restores request from session.
1100:      * @param  string key
1101:      * @return void
1102:      */
1103:     public function restoreRequest($key)
1104:     {
1105:         $session = $this->getSession('Nette.Application/requests');
1106:         if (!isset($session[$key]) || ($session[$key][0] !== NULL && $session[$key][0] !== $this->getUser()->getId())) {
1107:             return;
1108:         }
1109:         $request = clone $session[$key][1];
1110:         unset($session[$key]);
1111:         $request->setFlag(Application\Request::RESTORED, TRUE);
1112:         $params = $request->getParameters();
1113:         $params[self::FLASH_KEY] = $this->getFlashKey();
1114:         $request->setParameters($params);
1115:         $this->sendResponse(new Responses\ForwardResponse($request));
1116:     }
1117: 
1118: 
1119:     /********************* interface IStatePersistent ****************d*g**/
1120: 
1121: 
1122:     /**
1123:      * Returns array of persistent components.
1124:      * This default implementation detects components by class-level annotation @persistent(cmp1, cmp2).
1125:      * @return array
1126:      */
1127:     public static function getPersistentComponents()
1128:     {
1129:         return (array) ComponentReflection::parseAnnotation(new \ReflectionClass(get_called_class()), 'persistent');
1130:     }
1131: 
1132: 
1133:     /**
1134:      * Saves state information for all subcomponents to $this->globalState.
1135:      * @return array
1136:      */
1137:     protected function getGlobalState($forClass = NULL)
1138:     {
1139:         $sinces = &$this->globalStateSinces;
1140: 
1141:         if ($this->globalState === NULL) {
1142:             $state = [];
1143:             foreach ($this->globalParams as $id => $params) {
1144:                 $prefix = $id . self::NAME_SEPARATOR;
1145:                 foreach ($params as $key => $val) {
1146:                     $state[$prefix . $key] = $val;
1147:                 }
1148:             }
1149:             $this->saveState($state, $forClass ? new ComponentReflection($forClass) : NULL);
1150: 
1151:             if ($sinces === NULL) {
1152:                 $sinces = [];
1153:                 foreach ($this->getReflection()->getPersistentParams() as $name => $meta) {
1154:                     $sinces[$name] = $meta['since'];
1155:                 }
1156:             }
1157: 
1158:             $components = $this->getReflection()->getPersistentComponents();
1159:             $iterator = $this->getComponents(TRUE, IStatePersistent::class);
1160: 
1161:             foreach ($iterator as $name => $component) {
1162:                 if ($iterator->getDepth() === 0) {
1163:                     // counts with Nette\Application\RecursiveIteratorIterator::SELF_FIRST
1164:                     $since = isset($components[$name]['since']) ? $components[$name]['since'] : FALSE; // FALSE = nonpersistent
1165:                 }
1166:                 $prefix = $component->getUniqueId() . self::NAME_SEPARATOR;
1167:                 $params = [];
1168:                 $component->saveState($params);
1169:                 foreach ($params as $key => $val) {
1170:                     $state[$prefix . $key] = $val;
1171:                     $sinces[$prefix . $key] = $since;
1172:                 }
1173:             }
1174: 
1175:         } else {
1176:             $state = $this->globalState;
1177:         }
1178: 
1179:         if ($forClass !== NULL) {
1180:             $since = NULL;
1181:             foreach ($state as $key => $foo) {
1182:                 if (!isset($sinces[$key])) {
1183:                     $x = strpos($key, self::NAME_SEPARATOR);
1184:                     $x = $x === FALSE ? $key : substr($key, 0, $x);
1185:                     $sinces[$key] = isset($sinces[$x]) ? $sinces[$x] : FALSE;
1186:                 }
1187:                 if ($since !== $sinces[$key]) {
1188:                     $since = $sinces[$key];
1189:                     $ok = $since && is_a($forClass, $since, TRUE);
1190:                 }
1191:                 if (!$ok) {
1192:                     unset($state[$key]);
1193:                 }
1194:             }
1195:         }
1196: 
1197:         return $state;
1198:     }
1199: 
1200: 
1201:     /**
1202:      * Permanently saves state information for all subcomponents to $this->globalState.
1203:      * @return void
1204:      */
1205:     protected function saveGlobalState()
1206:     {
1207:         $this->globalParams = [];
1208:         $this->globalState = $this->getGlobalState();
1209:     }
1210: 
1211: 
1212:     /**
1213:      * Initializes $this->globalParams, $this->signal & $this->signalReceiver, $this->action, $this->view. Called by run().
1214:      * @return void
1215:      * @throws Nette\Application\BadRequestException if action name is not valid
1216:      */
1217:     private function initGlobalParameters()
1218:     {
1219:         // init $this->globalParams
1220:         $this->globalParams = [];
1221:         $selfParams = [];
1222: 
1223:         $params = $this->request->getParameters();
1224:         if (($tmp = $this->request->getPost('_' . self::SIGNAL_KEY)) !== NULL) {
1225:             $params[self::SIGNAL_KEY] = $tmp;
1226:         } elseif ($this->isAjax()) {
1227:             $params += $this->request->getPost();
1228:             if (($tmp = $this->request->getPost(self::SIGNAL_KEY)) !== NULL) {
1229:                 $params[self::SIGNAL_KEY] = $tmp;
1230:             }
1231:         }
1232: 
1233:         foreach ($params as $key => $value) {
1234:             if (!preg_match('#^((?:[a-z0-9_]+-)*)((?!\d+\z)[a-z0-9_]+)\z#i', $key, $matches)) {
1235:                 continue;
1236:             } elseif (!$matches[1]) {
1237:                 $selfParams[$key] = $value;
1238:             } else {
1239:                 $this->globalParams[substr($matches[1], 0, -1)][$matches[2]] = $value;
1240:             }
1241:         }
1242: 
1243:         // init & validate $this->action & $this->view
1244:         $this->changeAction(isset($selfParams[self::ACTION_KEY]) ? $selfParams[self::ACTION_KEY] : self::DEFAULT_ACTION);
1245: 
1246:         // init $this->signalReceiver and key 'signal' in appropriate params array
1247:         $this->signalReceiver = $this->getUniqueId();
1248:         if (isset($selfParams[self::SIGNAL_KEY])) {
1249:             $param = $selfParams[self::SIGNAL_KEY];
1250:             if (!is_string($param)) {
1251:                 $this->error('Signal name is not string.');
1252:             }
1253:             $pos = strrpos($param, '-');
1254:             if ($pos) {
1255:                 $this->signalReceiver = substr($param, 0, $pos);
1256:                 $this->signal = substr($param, $pos + 1);
1257:             } else {
1258:                 $this->signalReceiver = $this->getUniqueId();
1259:                 $this->signal = $param;
1260:             }
1261:             if ($this->signal == NULL) { // intentionally ==
1262:                 $this->signal = NULL;
1263:             }
1264:         }
1265: 
1266:         $this->loadState($selfParams);
1267:     }
1268: 
1269: 
1270:     /**
1271:      * Pops parameters for specified component.
1272:      * @param  string  component id
1273:      * @return array
1274:      * @internal
1275:      */
1276:     public function popGlobalParameters($id)
1277:     {
1278:         if (isset($this->globalParams[$id])) {
1279:             $res = $this->globalParams[$id];
1280:             unset($this->globalParams[$id]);
1281:             return $res;
1282: 
1283:         } else {
1284:             return [];
1285:         }
1286:     }
1287: 
1288: 
1289:     /********************* flash session ****************d*g**/
1290: 
1291: 
1292:     /**
1293:      * @return string|NULL
1294:      */
1295:     private function getFlashKey()
1296:     {
1297:         $flashKey = $this->getParameter(self::FLASH_KEY);
1298:         return is_string($flashKey) && $flashKey !== ''
1299:             ? $flashKey
1300:             : NULL;
1301:     }
1302: 
1303: 
1304:     /**
1305:      * Checks if a flash session namespace exists.
1306:      * @return bool
1307:      */
1308:     public function hasFlashSession()
1309:     {
1310:         $flashKey = $this->getFlashKey();
1311:         return $flashKey !== NULL
1312:             && $this->getSession()->hasSection('Nette.Application.Flash/' . $flashKey);
1313:     }
1314: 
1315: 
1316:     /**
1317:      * Returns session namespace provided to pass temporary data between redirects.
1318:      * @return Nette\Http\SessionSection
1319:      */
1320:     public function getFlashSession()
1321:     {
1322:         $flashKey = $this->getFlashKey();
1323:         if ($flashKey === NULL) {
1324:             $this->params[self::FLASH_KEY] = $flashKey = Nette\Utils\Random::generate(4);
1325:         }
1326:         return $this->getSession('Nette.Application.Flash/' . $flashKey);
1327:     }
1328: 
1329: 
1330:     /********************* services ****************d*g**/
1331: 
1332: 
1333:     public function injectPrimary(Nette\DI\Container $context = NULL, Application\IPresenterFactory $presenterFactory = NULL, Application\IRouter $router = NULL,
1334:         Http\IRequest $httpRequest, Http\IResponse $httpResponse, Http\Session $session = NULL, Nette\Security\User $user = NULL, ITemplateFactory $templateFactory = NULL)
1335:     {
1336:         if ($this->presenterFactory !== NULL) {
1337:             throw new Nette\InvalidStateException('Method ' . __METHOD__ . ' is intended for initialization and should not be called more than once.');
1338:         }
1339: 
1340:         $this->context = $context;
1341:         $this->presenterFactory = $presenterFactory;
1342:         $this->router = $router;
1343:         $this->httpRequest = $httpRequest;
1344:         $this->httpResponse = $httpResponse;
1345:         $this->session = $session;
1346:         $this->user = $user;
1347:         $this->templateFactory = $templateFactory;
1348:     }
1349: 
1350: 
1351:     /**
1352:      * Gets the context.
1353:      * @return Nette\DI\Container
1354:      * @deprecated
1355:      */
1356:     public function getContext()
1357:     {
1358:         if (!$this->context) {
1359:             throw new Nette\InvalidStateException('Context has not been set.');
1360:         }
1361:         return $this->context;
1362:     }
1363: 
1364: 
1365:     /**
1366:      * @return Nette\Http\IRequest
1367:      */
1368:     public function getHttpRequest()
1369:     {
1370:         return $this->httpRequest;
1371:     }
1372: 
1373: 
1374:     /**
1375:      * @return Nette\Http\IResponse
1376:      */
1377:     public function getHttpResponse()
1378:     {
1379:         return $this->httpResponse;
1380:     }
1381: 
1382: 
1383:     /**
1384:      * @param  string
1385:      * @return Nette\Http\Session|Nette\Http\SessionSection
1386:      */
1387:     public function getSession($namespace = NULL)
1388:     {
1389:         if (!$this->session) {
1390:             throw new Nette\InvalidStateException('Service Session has not been set.');
1391:         }
1392:         return $namespace === NULL ? $this->session : $this->session->getSection($namespace);
1393:     }
1394: 
1395: 
1396:     /**
1397:      * @return Nette\Security\User
1398:      */
1399:     public function getUser()
1400:     {
1401:         if (!$this->user) {
1402:             throw new Nette\InvalidStateException('Service User has not been set.');
1403:         }
1404:         return $this->user;
1405:     }
1406: 
1407: 
1408:     /**
1409:      * @return ITemplateFactory
1410:      */
1411:     public function getTemplateFactory()
1412:     {
1413:         if (!$this->templateFactory) {
1414:             throw new Nette\InvalidStateException('Service TemplateFactory has not been set.');
1415:         }
1416:         return $this->templateFactory;
1417:     }
1418: 
1419: }
1420: 
Nette 2.4-20170119 API API documentation generated by ApiGen 2.8.0