| 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 |
declare (strict_types=1); |
| 8 |
namespace Packetery\Nette\Forms; |
| 9 |
|
| 10 |
use Packetery\Nette; |
| 11 |
use Packetery\Nette\Utils\Arrays; |
| 12 |
use Packetery\Nette\Utils\Html; |
| 13 |
/** |
| 14 |
* Creates, validates and renders HTML forms. |
| 15 |
* |
| 16 |
* @property-read array $errors |
| 17 |
* @property-read array $ownErrors |
| 18 |
* @property-read Html $elementPrototype |
| 19 |
* @property-read FormRenderer $renderer |
| 20 |
* @property string $action |
| 21 |
* @property string $method |
| 22 |
*/ |
| 23 |
class Form extends Container implements \Packetery\Nette\HtmlStringable |
| 24 |
{ |
| 25 |
/** validator */ |
| 26 |
public const EQUAL = ':equal', IS_IN = self::EQUAL, NOT_EQUAL = ':notEqual', IS_NOT_IN = self::NOT_EQUAL, FILLED = ':filled', BLANK = ':blank', REQUIRED = self::FILLED, VALID = ':valid', SUBMITTED = ':submitted', MIN_LENGTH = ':minLength', MAX_LENGTH = ':maxLength', LENGTH = ':length', EMAIL = ':email', URL = ':url', PATTERN = ':pattern', PATTERN_ICASE = ':patternCaseInsensitive', INTEGER = ':integer', NUMERIC = ':numeric', FLOAT = ':float', MIN = ':min', MAX = ':max', RANGE = ':range', COUNT = self::LENGTH, MAX_FILE_SIZE = ':fileSize', MIME_TYPE = ':mimeType', IMAGE = ':image', MAX_POST_SIZE = ':maxPostSize'; |
| 27 |
/** method */ |
| 28 |
public const GET = 'get', POST = 'post'; |
| 29 |
/** submitted data types */ |
| 30 |
public const DATA_TEXT = 1, DATA_LINE = 2, DATA_FILE = 3, DATA_KEYS = 8; |
| 31 |
/** @internal tracker ID */ |
| 32 |
public const TRACKER_ID = '_form_'; |
| 33 |
/** @internal protection token ID */ |
| 34 |
public const PROTECTOR_ID = '_token_'; |
| 35 |
/** |
| 36 |
* Occurs when the form is submitted and successfully validated |
| 37 |
* @var array<callable(self, array|object): void|callable(array|object): void> |
| 38 |
*/ |
| 39 |
public $onSuccess = []; |
| 40 |
/** @var array<callable(self): void> Occurs when the form is submitted and is not valid */ |
| 41 |
public $onError = []; |
| 42 |
/** @var array<callable(self): void> Occurs when the form is submitted */ |
| 43 |
public $onSubmit = []; |
| 44 |
/** @var array<callable(self): void> Occurs before the form is rendered */ |
| 45 |
public $onRender = []; |
| 46 |
/** @internal @var \Packetery\Nette\Http\IRequest used only by standalone form */ |
| 47 |
public $httpRequest; |
| 48 |
/** @var bool */ |
| 49 |
protected $crossOrigin = \false; |
| 50 |
/** @var \Packetery\Nette\Http\IRequest */ |
| 51 |
private static $defaultHttpRequest; |
| 52 |
/** @var mixed or null meaning: not detected yet */ |
| 53 |
private $submittedBy; |
| 54 |
/** @var array */ |
| 55 |
private $httpData; |
| 56 |
/** @var Html element <form> */ |
| 57 |
private $element; |
| 58 |
/** @var FormRenderer */ |
| 59 |
private $renderer; |
| 60 |
/** @var \Packetery\Nette\Localization\Translator */ |
| 61 |
private $translator; |
| 62 |
/** @var ControlGroup[] */ |
| 63 |
private $groups = []; |
| 64 |
/** @var array */ |
| 65 |
private $errors = []; |
| 66 |
/** @var bool */ |
| 67 |
private $beforeRenderCalled; |
| 68 |
/** |
| 69 |
* Form constructor. |
| 70 |
*/ |
| 71 |
public function __construct(string $name = null) |
| 72 |
{ |
| 73 |
if ($name !== null) { |
| 74 |
$this->getElementPrototype()->id = 'frm-' . $name; |
| 75 |
$tracker = new Controls\HiddenField($name); |
| 76 |
$tracker->setOmitted(); |
| 77 |
$this[self::TRACKER_ID] = $tracker; |
| 78 |
$this->setParent(null, $name); |
| 79 |
} |
| 80 |
$this->monitor(self::class, function () : void { |
| 81 |
throw new \Packetery\Nette\InvalidStateException('Nested forms are forbidden.'); |
| 82 |
}); |
| 83 |
} |
| 84 |
/** |
| 85 |
* Returns self. |
| 86 |
* @return static |
| 87 |
*/ |
| 88 |
public function getForm(bool $throw = \true) : self |
| 89 |
{ |
| 90 |
return $this; |
| 91 |
} |
| 92 |
/** |
| 93 |
* Sets form's action. |
| 94 |
* @param string|object $url |
| 95 |
* @return static |
| 96 |
*/ |
| 97 |
public function setAction($url) |
| 98 |
{ |
| 99 |
$this->getElementPrototype()->action = $url; |
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return $this; |
| 101 |
} |
| 102 |
/** |
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* Returns form's action. |
| 104 |
* @return mixed |
| 105 |
*/ |
| 106 |
public function getAction() |
| 107 |
{ |
| 108 |
return $this->getElementPrototype()->action; |
| 109 |
} |
| 110 |
/** |
| 111 |
* Sets form's method GET or POST. |
| 112 |
* @return static |
| 113 |
*/ |
| 114 |
public function setMethod(string $method) |
| 115 |
{ |
| 116 |
if ($this->httpData !== null) { |
| 117 |
throw new \Packetery\Nette\InvalidStateException(__METHOD__ . '() must be called until the form is empty.'); |
| 118 |
} |
| 119 |
$this->getElementPrototype()->method = \strtolower($method); |
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return $this; |
| 121 |
} |
| 122 |
/** |
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* Returns form's method. |
| 124 |
*/ |
| 125 |
public function getMethod() : string |
| 126 |
{ |
| 127 |
return $this->getElementPrototype()->method; |
| 128 |
} |
| 129 |
/** |
| 130 |
* Checks if the request method is the given one. |
| 131 |
*/ |
| 132 |
public function isMethod(string $method) : bool |
| 133 |
{ |
| 134 |
return \strcasecmp($this->getElementPrototype()->method, $method) === 0; |
| 135 |
} |
| 136 |
/** |
| 137 |
* Changes forms's HTML attribute. |
| 138 |
* @return static |
| 139 |
*/ |
| 140 |
public function setHtmlAttribute(string $name, $value = \true) |
| 141 |
{ |
| 142 |
$this->getElementPrototype()->{$name} = $value; |
| 143 |
return $this; |
| 144 |
} |
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/** |
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* Disables CSRF protection using a SameSite cookie. |
| 147 |
*/ |
| 148 |
public function allowCrossOrigin() : void |
| 149 |
{ |
| 150 |
$this->crossOrigin = \true; |
| 151 |
} |
| 152 |
/** |
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* Cross-Site Request Forgery (CSRF) form protection. |
| 154 |
*/ |
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public function addProtection(string $errorMessage = null) : Controls\CsrfProtection |
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{ |
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$control = new Controls\CsrfProtection($errorMessage); |
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$this->addComponent($control, self::PROTECTOR_ID, \key((array) $this->getComponents())); |
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return $control; |
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} |
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/** |
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* Adds fieldset group to the form. |
| 163 |
*/ |
| 164 |
public function addGroup(string $caption = null, bool $setAsCurrent = \true) : ControlGroup |
| 165 |
{ |
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$group = new ControlGroup(); |
| 167 |
$group->setOption('label', $caption); |
| 168 |
$group->setOption('visual', \true); |
| 169 |
if ($setAsCurrent) { |
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$this->setCurrentGroup($group); |
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} |
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return !\is_scalar($caption) || isset($this->groups[$caption]) ? $this->groups[] = $group : ($this->groups[$caption] = $group); |
| 173 |
} |
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/** |
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* Removes fieldset group from form. |
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* @param string|ControlGroup $name |
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*/ |
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public function removeGroup($name) : void |
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{ |
| 180 |
if (\is_string($name) && isset($this->groups[$name])) { |
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$group = $this->groups[$name]; |
| 182 |
} elseif ($name instanceof ControlGroup && \in_array($name, $this->groups, \true)) { |
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$group = $name; |
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$name = \array_search($group, $this->groups, \true); |
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} else { |
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throw new \Packetery\Nette\InvalidArgumentException("Group not found in form '{$this->name}'"); |
| 187 |
} |
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foreach ($group->getControls() as $control) { |
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$control->getParent()->removeComponent($control); |
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} |
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unset($this->groups[$name]); |
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} |
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/** |
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* Returns all defined groups. |
| 195 |
* @return ControlGroup[] |
| 196 |
*/ |
| 197 |
public function getGroups() : array |
| 198 |
{ |
| 199 |
return $this->groups; |
| 200 |
} |
| 201 |
/** |
| 202 |
* Returns the specified group. |
| 203 |
* @param string|int $name |
| 204 |
*/ |
| 205 |
public function getGroup($name) : ?ControlGroup |
| 206 |
{ |
| 207 |
return $this->groups[$name] ?? null; |
| 208 |
} |
| 209 |
/********************* translator ****************d*g**/ |
| 210 |
/** |
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* Sets translate adapter. |
| 212 |
* @return static |
| 213 |
*/ |
| 214 |
public function setTranslator(?Nette\Localization\Translator $translator) |
| 215 |
{ |
| 216 |
$this->translator = $translator; |
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return $this; |
| 218 |
} |
| 219 |
/** |
| 220 |
* Returns translate adapter. |
| 221 |
*/ |
| 222 |
public function getTranslator() : ?Nette\Localization\Translator |
| 223 |
{ |
| 224 |
return $this->translator; |
| 225 |
} |
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/********************* submission ****************d*g**/ |
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/** |
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* Tells if the form is anchored. |
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*/ |
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public function isAnchored() : bool |
| 231 |
{ |
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return \true; |
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} |
| 234 |
/** |
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* Tells if the form was submitted. |
| 236 |
* @return SubmitterControl|bool submittor control |
| 237 |
*/ |
| 238 |
public function isSubmitted() |
| 239 |
{ |
| 240 |
if ($this->submittedBy === null) { |
| 241 |
$this->getHttpData(); |
| 242 |
} |
| 243 |
return $this->submittedBy; |
| 244 |
} |
| 245 |
/** |
| 246 |
* Tells if the form was submitted and successfully validated. |
| 247 |
*/ |
| 248 |
public function isSuccess() : bool |
| 249 |
{ |
| 250 |
return $this->isSubmitted() && $this->isValid(); |
| 251 |
} |
| 252 |
/** |
| 253 |
* Sets the submittor control. |
| 254 |
* @return static |
| 255 |
* @internal |
| 256 |
*/ |
| 257 |
public function setSubmittedBy(?SubmitterControl $by) |
| 258 |
{ |
| 259 |
$this->submittedBy = $by ?? \false; |
| 260 |
return $this; |
| 261 |
} |
| 262 |
/** |
| 263 |
* Returns submitted HTTP data. |
| 264 |
* @return mixed |
| 265 |
*/ |
| 266 |
public function getHttpData(int $type = null, string $htmlName = null) |
| 267 |
{ |
| 268 |
if ($this->httpData === null) { |
| 269 |
if (!$this->isAnchored()) { |
| 270 |
throw new \Packetery\Nette\InvalidStateException('Form is not anchored and therefore can not determine whether it was submitted.'); |
| 271 |
} |
| 272 |
$data = $this->receiveHttpData(); |
| 273 |
$this->httpData = (array) $data; |
| 274 |
$this->submittedBy = \is_array($data); |
| 275 |
} |
| 276 |
if ($htmlName === null) { |
| 277 |
return $this->httpData; |
| 278 |
} |
| 279 |
return Helpers::extractHttpData($this->httpData, $htmlName, $type); |
| 280 |
} |
| 281 |
/** |
| 282 |
* Fires submit/click events. |
| 283 |
*/ |
| 284 |
public function fireEvents() : void |
| 285 |
{ |
| 286 |
if (!$this->isSubmitted()) { |
| 287 |
return; |
| 288 |
} elseif (!$this->getErrors()) { |
| 289 |
$this->validate(); |
| 290 |
} |
| 291 |
if ($this->submittedBy instanceof Controls\SubmitButton) { |
| 292 |
if ($this->isValid()) { |
| 293 |
$this->invokeHandlers($this->submittedBy->onClick, $this->submittedBy); |
| 294 |
} else { |
| 295 |
Arrays::invoke($this->submittedBy->onInvalidClick, $this->submittedBy); |
| 296 |
} |
| 297 |
} |
| 298 |
if ($this->isValid()) { |
| 299 |
$this->invokeHandlers($this->onSuccess); |
| 300 |
} |
| 301 |
if (!$this->isValid()) { |
| 302 |
Arrays::invoke($this->onError, $this); |
| 303 |
} |
| 304 |
Arrays::invoke($this->onSubmit, $this); |
| 305 |
} |
| 306 |
private function invokeHandlers(iterable $handlers, $button = null) : void |
| 307 |
{ |
| 308 |
foreach ($handlers as $handler) { |
| 309 |
$params = \Packetery\Nette\Utils\Callback::toReflection($handler)->getParameters(); |
| 310 |
$types = \array_map([\Packetery\Nette\Utils\Reflection::class, 'getParameterType'], $params); |
| 311 |
if (!isset($types[0])) { |
| 312 |
$arg0 = $button ?: $this; |
| 313 |
} elseif ($this instanceof $types[0]) { |
| 314 |
$arg0 = $this; |
| 315 |
} elseif ($button instanceof $types[0]) { |
| 316 |
$arg0 = $button; |
| 317 |
} else { |
| 318 |
$arg0 = $this->getValues($types[0]); |
| 319 |
} |
| 320 |
$arg1 = isset($params[1]) ? $this->getValues($types[1]) : null; |
| 321 |
$handler($arg0, $arg1); |
| 322 |
if (!$this->isValid()) { |
| 323 |
return; |
| 324 |
} |
| 325 |
} |
| 326 |
} |
| 327 |
/** |
| 328 |
* Resets form. |
| 329 |
* @return static |
| 330 |
*/ |
| 331 |
public function reset() |
| 332 |
{ |
| 333 |
$this->setSubmittedBy(null); |
| 334 |
$this->setValues([], \true); |
| 335 |
return $this; |
| 336 |
} |
| 337 |
/** |
| 338 |
* Internal: returns submitted HTTP data or null when form was not submitted. |
| 339 |
*/ |
| 340 |
protected function receiveHttpData() : ?array |
| 341 |
{ |
| 342 |
$httpRequest = $this->getHttpRequest(); |
| 343 |
if (\strcasecmp($this->getMethod(), $httpRequest->getMethod())) { |
| 344 |
return null; |
| 345 |
} |
| 346 |
if ($httpRequest->isMethod('post')) { |
| 347 |
if (!$this->crossOrigin && !$httpRequest->isSameSite()) { |
| 348 |
return null; |
| 349 |
} |
| 350 |
$data = \Packetery\Nette\Utils\Arrays::mergeTree($httpRequest->getPost(), $httpRequest->getFiles()); |
| 351 |
} else { |
| 352 |
$data = $httpRequest->getQuery(); |
| 353 |
if (!$data) { |
| 354 |
return null; |
| 355 |
} |
| 356 |
} |
| 357 |
if ($tracker = $this->getComponent(self::TRACKER_ID, \false)) { |
| 358 |
if (!isset($data[self::TRACKER_ID]) || $data[self::TRACKER_ID] !== $tracker->getValue()) { |
| 359 |
return null; |
| 360 |
} |
| 361 |
} |
| 362 |
return $data; |
| 363 |
} |
| 364 |
/********************* validation ****************d*g**/ |
| 365 |
public function validate(array $controls = null) : void |
| 366 |
{ |
| 367 |
$this->cleanErrors(); |
| 368 |
if ($controls === null && $this->submittedBy instanceof SubmitterControl) { |
| 369 |
$controls = $this->submittedBy->getValidationScope(); |
| 370 |
} |
| 371 |
$this->validateMaxPostSize(); |
| 372 |
parent::validate($controls); |
| 373 |
} |
| 374 |
/** @internal */ |
| 375 |
public function validateMaxPostSize() : void |
| 376 |
{ |
| 377 |
if (!$this->submittedBy || !$this->isMethod('post') || empty($_SERVER['CONTENT_LENGTH'])) { |
| 378 |
return; |
| 379 |
} |
| 380 |
$maxSize = Helpers::iniGetSize('post_max_size'); |
| 381 |
if ($maxSize > 0 && $maxSize < $_SERVER['CONTENT_LENGTH']) { |
| 382 |
$this->addError(\sprintf(Validator::$messages[self::MAX_FILE_SIZE], $maxSize)); |
| 383 |
} |
| 384 |
} |
| 385 |
/** |
| 386 |
* Adds global error message. |
| 387 |
* @param string|object $message |
| 388 |
*/ |
| 389 |
public function addError($message, bool $translate = \true) : void |
| 390 |
{ |
| 391 |
if ($translate && $this->translator) { |
| 392 |
$message = $this->translator->translate($message); |
| 393 |
} |
| 394 |
$this->errors[] = $message; |
| 395 |
} |
| 396 |
/** |
| 397 |
* Returns global validation errors. |
| 398 |
*/ |
| 399 |
public function getErrors() : array |
| 400 |
{ |
| 401 |
return \array_unique(\array_merge($this->errors, parent::getErrors())); |
| 402 |
} |
| 403 |
public function hasErrors() : bool |
| 404 |
{ |
| 405 |
return (bool) $this->getErrors(); |
| 406 |
} |
| 407 |
public function cleanErrors() : void |
| 408 |
{ |
| 409 |
$this->errors = []; |
| 410 |
} |
| 411 |
/** |
| 412 |
* Returns form's validation errors. |
| 413 |
*/ |
| 414 |
public function getOwnErrors() : array |
| 415 |
{ |
| 416 |
return \array_unique($this->errors); |
| 417 |
} |
| 418 |
/********************* rendering ****************d*g**/ |
| 419 |
/** |
| 420 |
* Returns form's HTML element template. |
| 421 |
*/ |
| 422 |
public function getElementPrototype() : Html |
| 423 |
{ |
| 424 |
if (!$this->element) { |
| 425 |
$this->element = Html::el('form'); |
| 426 |
$this->element->action = ''; |
| 427 |
// RFC 1808 -> empty uri means 'this' |
| 428 |
$this->element->method = self::POST; |
| 429 |
} |
| 430 |
return $this->element; |
| 431 |
} |
| 432 |
/** |
| 433 |
* Sets form renderer. |
| 434 |
* @return static |
| 435 |
*/ |
| 436 |
public function setRenderer(?FormRenderer $renderer) |
| 437 |
{ |
| 438 |
$this->renderer = $renderer; |
| 439 |
return $this; |
| 440 |
} |
| 441 |
/** |
| 442 |
* Returns form renderer. |
| 443 |
*/ |
| 444 |
public function getRenderer() : FormRenderer |
| 445 |
{ |
| 446 |
if ($this->renderer === null) { |
| 447 |
$this->renderer = new Rendering\DefaultFormRenderer(); |
| 448 |
} |
| 449 |
return $this->renderer; |
| 450 |
} |
| 451 |
protected function beforeRender() |
| 452 |
{ |
| 453 |
} |
| 454 |
/** |
| 455 |
* Must be called before form is rendered and render() is not used. |
| 456 |
*/ |
| 457 |
public function fireRenderEvents() : void |
| 458 |
{ |
| 459 |
if (!$this->beforeRenderCalled) { |
| 460 |
$this->beforeRenderCalled = \true; |
| 461 |
$this->beforeRender(); |
| 462 |
Arrays::invoke($this->onRender, $this); |
| 463 |
} |
| 464 |
} |
| 465 |
/** |
| 466 |
* Renders form. |
| 467 |
*/ |
| 468 |
public function render(...$args) : void |
| 469 |
{ |
| 470 |
$this->fireRenderEvents(); |
| 471 |
echo $this->getRenderer()->render($this, ...$args); |
| 472 |
} |
| 473 |
/** |
| 474 |
* Renders form to string. |
| 475 |
* @param can throw exceptions? (hidden parameter) |
| 476 |
*/ |
| 477 |
public function __toString() : string |
| 478 |
{ |
| 479 |
try { |
| 480 |
$this->fireRenderEvents(); |
| 481 |
return $this->getRenderer()->render($this); |
| 482 |
} catch (\Throwable $e) { |
| 483 |
if (\func_num_args() || \PHP_VERSION_ID >= 70400) { |
| 484 |
throw $e; |
| 485 |
} |
| 486 |
\trigger_error('Exception in ' . __METHOD__ . "(): {$e->getMessage()} in {$e->getFile()}:{$e->getLine()}", \E_USER_ERROR); |
| 487 |
return ''; |
| 488 |
} |
| 489 |
} |
| 490 |
public function getToggles() : array |
| 491 |
{ |
| 492 |
$toggles = []; |
| 493 |
foreach ($this->getComponents(\true, Controls\BaseControl::class) as $control) { |
| 494 |
$toggles = $control->getRules()->getToggleStates($toggles); |
| 495 |
} |
| 496 |
return $toggles; |
| 497 |
} |
| 498 |
/********************* backend ****************d*g**/ |
| 499 |
/** |
| 500 |
* Initialize standalone forms. |
| 501 |
*/ |
| 502 |
public static function initialize(bool $reinit = \false) : void |
| 503 |
{ |
| 504 |
if ($reinit) { |
| 505 |
self::$defaultHttpRequest = null; |
| 506 |
return; |
| 507 |
} elseif (self::$defaultHttpRequest) { |
| 508 |
return; |
| 509 |
} |
| 510 |
self::$defaultHttpRequest = (new \Packetery\Nette\Http\RequestFactory())->fromGlobals(); |
| 511 |
if (\PHP_SAPI !== 'cli') { |
| 512 |
if (\headers_sent($file, $line)) { |
| 513 |
throw new \Packetery\Nette\InvalidStateException('Create a form or call \\Packetery\\Nette\\Forms\\Form::initialize() before the headers are sent to initialize CSRF protection.' . ($file ? " (output started at {$file}:{$line})" : '') . '. '); |
| 514 |
} |
| 515 |
\Packetery\Nette\Http\Helpers::initCookie(self::$defaultHttpRequest, new \Packetery\Nette\Http\Response()); |
| 516 |
} |
| 517 |
} |
| 518 |
/** @internal */ |
| 519 |
public function setHttpRequest(\Packetery\Nette\Http\IRequest $request) |
| 520 |
{ |
| 521 |
$this->httpRequest = $request; |
| 522 |
} |
| 523 |
private function getHttpRequest() : \Packetery\Nette\Http\IRequest |
| 524 |
{ |
| 525 |
if (!$this->httpRequest) { |
| 526 |
self::initialize(); |
| 527 |
$this->httpRequest = self::$defaultHttpRequest; |
| 528 |
} |
| 529 |
return $this->httpRequest; |
| 530 |
} |
| 531 |
} |
| 532 |
|
