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<?php |
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|
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/* |
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* This file is part of the Symfony package. |
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* |
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* (c) Fabien Potencier <[email protected]> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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|
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namespace Symfony\Component\DomCrawler; |
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|
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use Symfony\Component\DomCrawler\Field\ChoiceFormField; |
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use Symfony\Component\DomCrawler\Field\FormField; |
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|
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/** |
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* Form represents an HTML form. |
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* |
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* @author Fabien Potencier <[email protected]> |
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*/ |
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class Form extends Link implements \ArrayAccess |
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{ |
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/** |
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* @var \DOMElement |
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*/ |
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private $button; |
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|
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/** |
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* @var FormFieldRegistry |
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*/ |
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private $fields; |
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|
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/** |
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* @var string |
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*/ |
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private $baseHref; |
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|
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/** |
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* @param \DOMElement $node A \DOMElement instance |
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* @param string|null $currentUri The URI of the page where the form is embedded |
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* @param string|null $method The method to use for the link (if null, it defaults to the method defined by the form) |
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* @param string|null $baseHref The URI of the <base> used for relative links, but not for empty action |
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* |
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* @throws \LogicException if the node is not a button inside a form tag |
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*/ |
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public function __construct(\DOMElement $node, ?string $currentUri = null, ?string $method = null, ?string $baseHref = null) |
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{ |
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parent::__construct($node, $currentUri, $method); |
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$this->baseHref = $baseHref; |
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|
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$this->initialize(); |
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} |
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|
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/** |
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* Gets the form node associated with this form. |
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* |
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* @return \DOMElement |
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*/ |
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public function getFormNode() |
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{ |
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return $this->node; |
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} |
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|
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/** |
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* Sets the value of the fields. |
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* |
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* @param array $values An array of field values |
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* |
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* @return $this |
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*/ |
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public function setValues(array $values) |
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{ |
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foreach ($values as $name => $value) { |
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$this->fields->set($name, $value); |
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} |
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|
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return $this; |
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} |
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|
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/** |
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* Gets the field values. |
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* |
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* The returned array does not include file fields (@see getFiles). |
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* |
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* @return array |
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*/ |
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public function getValues() |
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{ |
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$values = []; |
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foreach ($this->fields->all() as $name => $field) { |
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if ($field->isDisabled()) { |
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continue; |
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} |
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|
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if (!$field instanceof Field\FileFormField && $field->hasValue()) { |
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$values[$name] = $field->getValue(); |
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} |
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} |
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|
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return $values; |
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} |
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|
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/** |
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* Gets the file field values. |
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* |
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* @return array |
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*/ |
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public function getFiles() |
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{ |
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if (!\in_array($this->getMethod(), ['POST', 'PUT', 'DELETE', 'PATCH'])) { |
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return []; |
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} |
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|
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$files = []; |
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|
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foreach ($this->fields->all() as $name => $field) { |
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if ($field->isDisabled()) { |
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continue; |
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} |
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|
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if ($field instanceof Field\FileFormField) { |
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$files[$name] = $field->getValue(); |
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} |
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} |
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|
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return $files; |
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} |
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|
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/** |
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* Gets the field values as PHP. |
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* |
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* This method converts fields with the array notation |
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* (like foo[bar] to arrays) like PHP does. |
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* |
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* @return array |
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*/ |
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public function getPhpValues() |
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{ |
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$values = []; |
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foreach ($this->getValues() as $name => $value) { |
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$qs = http_build_query([$name => $value], '', '&'); |
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if (!empty($qs)) { |
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parse_str($qs, $expandedValue); |
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$varName = substr($name, 0, \strlen(key($expandedValue))); |
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$values[] = [$varName => current($expandedValue)]; |
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} |
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} |
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|
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return array_replace_recursive([], ...$values); |
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} |
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|
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/** |
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* Gets the file field values as PHP. |
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* |
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* This method converts fields with the array notation |
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* (like foo[bar] to arrays) like PHP does. |
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* The returned array is consistent with the array for field values |
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* (@see getPhpValues), rather than uploaded files found in $_FILES. |
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* For a compound file field foo[bar] it will create foo[bar][name], |
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* instead of foo[name][bar] which would be found in $_FILES. |
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* |
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* @return array |
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*/ |
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public function getPhpFiles() |
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{ |
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$values = []; |
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foreach ($this->getFiles() as $name => $value) { |
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$qs = http_build_query([$name => $value], '', '&'); |
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if (!empty($qs)) { |
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parse_str($qs, $expandedValue); |
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$varName = substr($name, 0, \strlen(key($expandedValue))); |
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|
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array_walk_recursive( |
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$expandedValue, |
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function (&$value, $key) { |
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if (ctype_digit($value) && ('size' === $key || 'error' === $key)) { |
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$value = (int) $value; |
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} |
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} |
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); |
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|
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reset($expandedValue); |
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|
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$values[] = [$varName => current($expandedValue)]; |
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} |
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} |
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return array_replace_recursive([], ...$values); |
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} |
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|
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/** |
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* Gets the URI of the form. |
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* |
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* The returned URI is not the same as the form "action" attribute. |
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* This method merges the value if the method is GET to mimics |
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* browser behavior. |
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* |
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* @return string |
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*/ |
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public function getUri() |
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{ |
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$uri = parent::getUri(); |
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|
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if (!\in_array($this->getMethod(), ['POST', 'PUT', 'DELETE', 'PATCH'])) { |
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$currentParameters = []; |
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if ($query = parse_url($uri, \PHP_URL_QUERY)) { |
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parse_str($query, $currentParameters); |
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} |
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|
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$queryString = http_build_query(array_merge($currentParameters, $this->getValues()), '', '&'); |
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|
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$pos = strpos($uri, '?'); |
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$base = false === $pos ? $uri : substr($uri, 0, $pos); |
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$uri = rtrim($base.'?'.$queryString, '?'); |
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} |
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|
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return $uri; |
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} |
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|
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protected function getRawUri() |
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{ |
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// If the form was created from a button rather than the form node, check for HTML5 action overrides |
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if ($this->button !== $this->node && $this->button->getAttribute('formaction')) { |
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return $this->button->getAttribute('formaction'); |
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} |
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|
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return $this->node->getAttribute('action'); |
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} |
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|
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/** |
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* Gets the form method. |
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* |
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* If no method is defined in the form, GET is returned. |
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* |
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* @return string |
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*/ |
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public function getMethod() |
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{ |
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if (null !== $this->method) { |
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return $this->method; |
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} |
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|
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// If the form was created from a button rather than the form node, check for HTML5 method override |
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if ($this->button !== $this->node && $this->button->getAttribute('formmethod')) { |
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return strtoupper($this->button->getAttribute('formmethod')); |
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} |
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|
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return $this->node->getAttribute('method') ? strtoupper($this->node->getAttribute('method')) : 'GET'; |
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} |
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|
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/** |
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* Gets the form name. |
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* |
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* If no name is defined on the form, an empty string is returned. |
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*/ |
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public function getName(): string |
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{ |
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return $this->node->getAttribute('name'); |
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} |
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|
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/** |
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* Returns true if the named field exists. |
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* |
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* @return bool |
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*/ |
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public function has(string $name) |
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{ |
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return $this->fields->has($name); |
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} |
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|
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/** |
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* Removes a field from the form. |
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*/ |
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public function remove(string $name) |
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{ |
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$this->fields->remove($name); |
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} |
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|
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/** |
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* Gets a named field. |
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* |
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* @return FormField|FormField[]|FormField[][] |
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* |
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* @throws \InvalidArgumentException When field is not present in this form |
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*/ |
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public function get(string $name) |
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{ |
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return $this->fields->get($name); |
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} |
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|
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/** |
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* Sets a named field. |
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*/ |
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public function set(FormField $field) |
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{ |
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$this->fields->add($field); |
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} |
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|
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/** |
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* Gets all fields. |
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* |
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* @return FormField[] |
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*/ |
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public function all() |
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{ |
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return $this->fields->all(); |
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} |
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|
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/** |
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* Returns true if the named field exists. |
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* |
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* @param string $name The field name |
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* |
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* @return bool |
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*/ |
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#[\ReturnTypeWillChange] |
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public function offsetExists($name) |
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{ |
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return $this->has($name); |
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} |
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|
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/** |
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* Gets the value of a field. |
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* |
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* @param string $name The field name |
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* |
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* @return FormField|FormField[]|FormField[][] |
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* |
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* @throws \InvalidArgumentException if the field does not exist |
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*/ |
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#[\ReturnTypeWillChange] |
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public function offsetGet($name) |
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{ |
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return $this->fields->get($name); |
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} |
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|
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/** |
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* Sets the value of a field. |
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* |
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* @param string $name The field name |
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* @param string|array $value The value of the field |
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* |
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* @return void |
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* |
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* @throws \InvalidArgumentException if the field does not exist |
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*/ |
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#[\ReturnTypeWillChange] |
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public function offsetSet($name, $value) |
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{ |
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$this->fields->set($name, $value); |
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} |
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|
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/** |
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* Removes a field from the form. |
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* |
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* @param string $name The field name |
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* |
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* @return void |
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*/ |
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#[\ReturnTypeWillChange] |
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public function offsetUnset($name) |
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{ |
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$this->fields->remove($name); |
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} |
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|
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/** |
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* Disables validation. |
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* |
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* @return $this |
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*/ |
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public function disableValidation() |
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{ |
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foreach ($this->fields->all() as $field) { |
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if ($field instanceof Field\ChoiceFormField) { |
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$field->disableValidation(); |
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} |
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} |
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|
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return $this; |
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} |
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|
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/** |
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* Sets the node for the form. |
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* |
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* Expects a 'submit' button \DOMElement and finds the corresponding form element, or the form element itself. |
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* |
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* @throws \LogicException If given node is not a button or input or does not have a form ancestor |
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*/ |
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protected function setNode(\DOMElement $node) |
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{ |
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$this->button = $node; |
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if ('button' === $node->nodeName || ('input' === $node->nodeName && \in_array(strtolower($node->getAttribute('type')), ['submit', 'button', 'image']))) { |
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if ($node->hasAttribute('form')) { |
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// if the node has the HTML5-compliant 'form' attribute, use it |
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$formId = $node->getAttribute('form'); |
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$form = $node->ownerDocument->getElementById($formId); |
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if (null === $form) { |
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throw new \LogicException(sprintf('The selected node has an invalid form attribute (%s).', $formId)); |
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} |
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$this->node = $form; |
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|
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return; |
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} |
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// we loop until we find a form ancestor |
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do { |
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if (null === $node = $node->parentNode) { |
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throw new \LogicException('The selected node does not have a form ancestor.'); |
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} |
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} while ('form' !== $node->nodeName); |
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} elseif ('form' !== $node->nodeName) { |
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throw new \LogicException(sprintf('Unable to submit on a "%s" tag.', $node->nodeName)); |
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} |
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|
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$this->node = $node; |
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} |
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|
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/** |
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* Adds form elements related to this form. |
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* |
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* Creates an internal copy of the submitted 'button' element and |
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* the form node or the entire document depending on whether we need |
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* to find non-descendant elements through HTML5 'form' attribute. |
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*/ |
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private function initialize() |
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{ |
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$this->fields = new FormFieldRegistry(); |
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|
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$xpath = new \DOMXPath($this->node->ownerDocument); |
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|
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// add submitted button if it has a valid name |
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if ('form' !== $this->button->nodeName && $this->button->hasAttribute('name') && $this->button->getAttribute('name')) { |
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if ('input' == $this->button->nodeName && 'image' == strtolower($this->button->getAttribute('type'))) { |
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$name = $this->button->getAttribute('name'); |
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$this->button->setAttribute('value', '0'); |
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|
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// temporarily change the name of the input node for the x coordinate |
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$this->button->setAttribute('name', $name.'.x'); |
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$this->set(new Field\InputFormField($this->button)); |
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|
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// temporarily change the name of the input node for the y coordinate |
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$this->button->setAttribute('name', $name.'.y'); |
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$this->set(new Field\InputFormField($this->button)); |
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|
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// restore the original name of the input node |
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$this->button->setAttribute('name', $name); |
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} else { |
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$this->set(new Field\InputFormField($this->button)); |
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} |
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} |
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|
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// find form elements corresponding to the current form |
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if ($this->node->hasAttribute('id')) { |
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// corresponding elements are either descendants or have a matching HTML5 form attribute |
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$formId = Crawler::xpathLiteral($this->node->getAttribute('id')); |
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|
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$fieldNodes = $xpath->query(sprintf('( descendant::input[@form=%s] | descendant::button[@form=%1$s] | descendant::textarea[@form=%1$s] | descendant::select[@form=%1$s] | //form[@id=%1$s]//input[not(@form)] | //form[@id=%1$s]//button[not(@form)] | //form[@id=%1$s]//textarea[not(@form)] | //form[@id=%1$s]//select[not(@form)] )[not(ancestor::template)]', $formId)); |
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foreach ($fieldNodes as $node) { |
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$this->addField($node); |
| 460 |
} |
| 461 |
} else { |
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// do the xpath query with $this->node as the context node, to only find descendant elements |
| 463 |
// however, descendant elements with form attribute are not part of this form |
| 464 |
$fieldNodes = $xpath->query('( descendant::input[not(@form)] | descendant::button[not(@form)] | descendant::textarea[not(@form)] | descendant::select[not(@form)] )[not(ancestor::template)]', $this->node); |
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foreach ($fieldNodes as $node) { |
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$this->addField($node); |
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} |
| 468 |
} |
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|
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if ($this->baseHref && '' !== $this->node->getAttribute('action')) { |
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$this->currentUri = $this->baseHref; |
| 472 |
} |
| 473 |
} |
| 474 |
|
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private function addField(\DOMElement $node) |
| 476 |
{ |
| 477 |
if (!$node->hasAttribute('name') || !$node->getAttribute('name')) { |
| 478 |
return; |
| 479 |
} |
| 480 |
|
| 481 |
$nodeName = $node->nodeName; |
| 482 |
if ('select' == $nodeName || 'input' == $nodeName && 'checkbox' == strtolower($node->getAttribute('type'))) { |
| 483 |
$this->set(new Field\ChoiceFormField($node)); |
| 484 |
} elseif ('input' == $nodeName && 'radio' == strtolower($node->getAttribute('type'))) { |
| 485 |
// there may be other fields with the same name that are no choice |
| 486 |
// fields already registered (see https://github.com/symfony/symfony/issues/11689) |
| 487 |
if ($this->has($node->getAttribute('name')) && $this->get($node->getAttribute('name')) instanceof ChoiceFormField) { |
| 488 |
$this->get($node->getAttribute('name'))->addChoice($node); |
| 489 |
} else { |
| 490 |
$this->set(new Field\ChoiceFormField($node)); |
| 491 |
} |
| 492 |
} elseif ('input' == $nodeName && 'file' == strtolower($node->getAttribute('type'))) { |
| 493 |
$this->set(new Field\FileFormField($node)); |
| 494 |
} elseif ('input' == $nodeName && !\in_array(strtolower($node->getAttribute('type')), ['submit', 'button', 'image'])) { |
| 495 |
$this->set(new Field\InputFormField($node)); |
| 496 |
} elseif ('textarea' == $nodeName) { |
| 497 |
$this->set(new Field\TextareaFormField($node)); |
| 498 |
} |
| 499 |
} |
| 500 |
} |
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|
