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| 1 | <?php |
| 2 | |
| 3 | declare(strict_types=1); |
| 4 | |
| 5 | namespace Drupal\name\Utility; |
| 6 | |
| 7 | use Drupal\Core\Form\FormStateInterface; |
| 8 | use Drupal\name\Service\NameOptionInterface; |
| 9 | |
| 10 | /** |
| 11 | * Validates name field option textarea values. |
| 12 | * |
| 13 | * @internal |
| 14 | */ |
| 15 | final class NameOptionValidator { |
| 16 | |
| 17 | /** |
| 18 | * Validates parsed option lines and updates the form element value. |
| 19 | * |
| 20 | * @param array $element |
| 21 | * Element being validated. |
| 22 | * @param \Drupal\Core\Form\FormStateInterface $form_state |
| 23 | * The form state. |
| 24 | * @param array $values |
| 25 | * Values to check. |
| 26 | * @param int $max_length |
| 27 | * The max length. |
| 28 | */ |
| 29 | public static function validate(array $element, FormStateInterface $form_state, array $values, int $max_length): void { |
| 30 | $label = $element['#title']; |
| 31 | |
| 32 | $long_options = []; |
| 33 | $valid_options = []; |
| 34 | $default_options = []; |
| 35 | foreach ($values as $value) { |
| 36 | $value = trim((string) $value); |
| 37 | $classification = self::classifyLine($value, $max_length); |
| 38 | if ($classification === 'default') { |
| 39 | $default_options[] = $value; |
| 40 | continue; |
| 41 | } |
| 42 | if ($classification === 'vocabulary') { |
| 43 | if (self::validateVocabularyLine($element, $form_state, $value, (string) $label)) { |
| 44 | $valid_options[] = $value; |
| 45 | } |
| 46 | continue; |
| 47 | } |
| 48 | if ($classification === 'long') { |
| 49 | $long_options[] = $value; |
| 50 | continue; |
| 51 | } |
| 52 | if ($classification === 'valid') { |
| 53 | $valid_options[] = $value; |
| 54 | } |
| 55 | } |
| 56 | |
| 57 | self::applyAggregateValidation( |
| 58 | $element, |
| 59 | $form_state, |
| 60 | (string) $label, |
| 61 | $long_options, |
| 62 | $valid_options, |
| 63 | $default_options, |
| 64 | ); |
| 65 | } |
| 66 | |
| 67 | /** |
| 68 | * Applies validation errors after all lines are classified. |
| 69 | * |
| 70 | * @param array $element |
| 71 | * Element being validated. |
| 72 | * @param \Drupal\Core\Form\FormStateInterface $form_state |
| 73 | * The form state. |
| 74 | * @param string $label |
| 75 | * The element label. |
| 76 | * @param array $long_options |
| 77 | * Options that exceed max length. |
| 78 | * @param array $valid_options |
| 79 | * Valid non-default options. |
| 80 | * @param array $default_options |
| 81 | * Blank default options. |
| 82 | */ |
| 83 | private static function applyAggregateValidation( |
| 84 | array $element, |
| 85 | FormStateInterface $form_state, |
| 86 | string $label, |
| 87 | array $long_options, |
| 88 | array $valid_options, |
| 89 | array $default_options, |
| 90 | ): void { |
| 91 | if (count($long_options)) { |
| 92 | $form_state->setError($element, t('The following options exceed the maximum allowed %label length: %options', [ |
| 93 | '%options' => implode(', ', $long_options), |
| 94 | '%label' => $label, |
| 95 | ])); |
| 96 | return; |
| 97 | } |
| 98 | if (empty($valid_options)) { |
| 99 | $form_state->setError($element, t('%label are required.', [ |
| 100 | '%label' => $label, |
| 101 | ])); |
| 102 | return; |
| 103 | } |
| 104 | if (count($default_options) > 1) { |
| 105 | $form_state->setError($element, t('%label can only have one blank value assigned to it.', [ |
| 106 | '%label' => $label, |
| 107 | ])); |
| 108 | return; |
| 109 | } |
| 110 | |
| 111 | $form_state->setValueForElement($element, array_merge($default_options, $valid_options)); |
| 112 | } |
| 113 | |
| 114 | /** |
| 115 | * Classifies a trimmed option line. |
| 116 | * |
| 117 | * @param string $value |
| 118 | * The trimmed option line. |
| 119 | * @param int $max_length |
| 120 | * The maximum allowed length for plain values. |
| 121 | * |
| 122 | * @return string |
| 123 | * One of default, vocabulary, long, valid, or empty. |
| 124 | */ |
| 125 | private static function classifyLine(string $value, int $max_length): string { |
| 126 | if (str_starts_with($value, '--')) { |
| 127 | return 'default'; |
| 128 | } |
| 129 | if (preg_match(NameOptionInterface::VOCABULARY_REGEX, $value)) { |
| 130 | return 'vocabulary'; |
| 131 | } |
| 132 | if (mb_strlen($value) > $max_length) { |
| 133 | return 'long'; |
| 134 | } |
| 135 | if ($value !== '') { |
| 136 | return 'valid'; |
| 137 | } |
| 138 | return 'empty'; |
| 139 | } |
| 140 | |
| 141 | /** |
| 142 | * Validates a vocabulary import tag line. |
| 143 | * |
| 144 | * @param array $element |
| 145 | * Element being validated. |
| 146 | * @param \Drupal\Core\Form\FormStateInterface $form_state |
| 147 | * The form state. |
| 148 | * @param string $value |
| 149 | * The trimmed option line. |
| 150 | * @param string $label |
| 151 | * The element label. |
| 152 | * |
| 153 | * @return bool |
| 154 | * TRUE when the vocabulary tag is valid. |
| 155 | */ |
| 156 | private static function validateVocabularyLine(array $element, FormStateInterface $form_state, string $value, string $label): bool { |
| 157 | preg_match(NameOptionInterface::VOCABULARY_REGEX, $value, $matches); |
| 158 | if (!\Drupal::moduleHandler()->moduleExists('taxonomy')) { |
| 159 | $form_state->setError($element, t("The taxonomy module must be enabled before using the '%tag' tag in %label.", [ |
| 160 | '%tag' => $matches[0], |
| 161 | '%label' => $label, |
| 162 | ])); |
| 163 | return FALSE; |
| 164 | } |
| 165 | if ($value !== $matches[0]) { |
| 166 | $form_state->setError($element, t("The '%tag' tag in %label should be on a line by itself.", [ |
| 167 | '%tag' => $matches[0], |
| 168 | '%label' => $label, |
| 169 | ])); |
| 170 | return FALSE; |
| 171 | } |
| 172 | $vocabulary = \Drupal::entityTypeManager()->getStorage('taxonomy_vocabulary')->load($matches[1]); |
| 173 | if (!$vocabulary) { |
| 174 | $form_state->setError($element, t("The vocabulary '%tag' in %label could not be found.", [ |
| 175 | '%tag' => $matches[1], |
| 176 | '%label' => $label, |
| 177 | ])); |
| 178 | return FALSE; |
| 179 | } |
| 180 | return TRUE; |
| 181 | } |
| 182 | |
| 183 | } |