| 1 |
<?php |
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|
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namespace FluentForm\App\Services\Form; |
| 4 |
|
| 5 |
use FluentForm\App\Helpers\Helper; |
| 6 |
use FluentForm\App\Models\FormMeta; |
| 7 |
use FluentForm\App\Modules\Form\AkismetHandler; |
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use FluentForm\App\Modules\Form\CleanTalkHandler; |
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use FluentForm\App\Modules\Form\FormDataParser; |
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use FluentForm\App\Modules\Form\FormFieldsParser; |
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use FluentForm\App\Modules\HCaptcha\HCaptcha; |
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use FluentForm\App\Modules\ReCaptcha\ReCaptcha; |
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use FluentForm\App\Modules\Turnstile\Turnstile; |
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use FluentForm\App\Services\FormBuilder\Components\SelectCountry; |
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use FluentForm\Framework\Foundation\App; |
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use FluentForm\Framework\Helpers\ArrayHelper as Arr; |
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use FluentForm\Framework\Validator\ValidationException; |
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|
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class FormValidationService |
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{ |
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/** Skip a provider that just failed rather than re-timing-out per submission. */ |
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const GEO_BACKOFF_MINUTES = 15; |
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|
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const GEO_TIMEOUT = 3; |
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|
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/** Resolved countries are reused so a flood cannot burn provider quota. */ |
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const GEO_CACHE_MINUTES = 10; |
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|
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/** Entries per cache shard; 256 shards keeps rows small and uncontended. */ |
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const GEO_CACHE_SHARD_MAX = 25; |
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|
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/** Consecutive inconclusive answers before a provider is treated as down. */ |
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const GEO_PROVIDER_STRIKES = 3; |
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|
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protected $app; |
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protected $form; |
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protected $formData; |
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|
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public function __construct() |
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{ |
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$this->app = App::getInstance(); |
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} |
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|
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public function setForm($form) |
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{ |
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$this->form = $form; |
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} |
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|
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public function setFormData($formData) |
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{ |
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$this->formData = $formData; |
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} |
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|
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/** |
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* @param $fields |
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* @param $formData |
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* @return bool |
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* @throws ValidationException |
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*/ |
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public function validateSubmission(&$fields, &$formData) |
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{ |
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do_action('fluentform/before_form_validation', $fields, $formData); |
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|
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$this->preventMaliciousAttacks(); |
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|
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$this->validateRestrictions($fields); |
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|
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$this->validateNonce(); |
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|
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$this->validateReCaptcha(); |
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$this->validateHCaptcha(); |
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$this->validateTurnstile(); |
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|
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foreach ($fields as $fieldName => $field) { |
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if (isset($formData[$fieldName])) { |
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$element = $field['element']; |
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|
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$formData[$fieldName] = apply_filters_deprecated('fluentform_input_data_' . $element, [ |
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$formData[$fieldName], |
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$field, |
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$formData, |
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$this->form |
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], |
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FLUENTFORM_FRAMEWORK_UPGRADE, |
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'fluentform/input_data_' . $element, |
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'Use fluentform/input_data_' . $element . ' instead of fluentform_input_data_' . $element |
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); |
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$formData[$fieldName] = apply_filters('fluentform/input_data_' . $element, $formData[$fieldName], $field, $formData, $this->form); |
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} |
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} |
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|
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$originalValidations = FormFieldsParser::getValidations($this->form, $formData, $fields); |
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|
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// Fire an event so that one can hook into it to work with the rules & messages. |
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$originalValidations = apply_filters_deprecated('fluentform_validations', [ |
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$originalValidations, |
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$this->form, |
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$formData |
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], |
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FLUENTFORM_FRAMEWORK_UPGRADE, |
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'fluentform/validations', |
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'Use fluentform/validations instead of fluentform_validations.' |
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); |
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$validations = apply_filters('fluentform/validations', $originalValidations, $this->form, $formData); |
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|
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/* |
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* Clean talk fix for now |
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* They should not hook fluentform_validations and return nothing! |
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* We will remove this extra check once it's done |
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*/ |
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if ($originalValidations && (!$validations || !array_filter($validations))) { |
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$validations = $originalValidations; |
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} |
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|
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$validator = wpFluentForm('validator')->make($formData, $validations[0], $validations[1]); |
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|
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$errors = []; |
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if ($validator->validate()->fails()) { |
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foreach ($validator->errors() as $attribute => $rules) { |
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$position = strpos($attribute, ']'); |
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|
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if ($position) { |
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$attribute = substr($attribute, 0, strpos($attribute, ']') + 1); |
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} |
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|
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$errors[$attribute] = $rules; |
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} |
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// Fire an event so that one can hook into it to work with the errors. |
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$errors = apply_filters_deprecated('fluentform_validation_error', [ |
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$errors, |
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$this->form, |
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$fields, |
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$formData |
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], |
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FLUENTFORM_FRAMEWORK_UPGRADE, |
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'fluentform/validation_error', |
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'Use fluentform/validation_error instead of fluentform_validation_error.' |
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); |
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|
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$errors = $this->app->applyFilters('fluentform/validation_error', $errors, $this->form, $fields, $formData); |
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} |
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|
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foreach ($fields as $fieldKey => $field) { |
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$field['data_key'] = $fieldKey; |
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$inputName = Arr::get($field, 'raw.attributes.name'); |
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$field['name'] = $inputName; |
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$error = $this->validateInput($field, $formData, $this->form); |
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|
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// Deliberately here and not inside Helper::validateInput(): that |
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// answers "is this value legal for this field" and is reused by entry |
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// import, which would silently drop a historical row that breaches a |
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// limit added later. How many options may be picked is a rule about |
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// this submission, so it is enforced on this path only. |
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if (!$error) { |
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$error = Helper::validateSelectionLimits( |
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Arr::get($field, 'raw', $field), |
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Arr::get($formData, $inputName) |
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); |
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} |
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$error = apply_filters_deprecated('fluentform_validate_input_item_' . $field['element'], [ |
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$error, |
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$field, |
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$formData, |
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$fields, |
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$this->form, |
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$errors |
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], |
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FLUENTFORM_FRAMEWORK_UPGRADE, |
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'fluentform/validate_input_item_' . $field['element'], |
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'Use fluentform/validate_input_item_' . $field['element'] . ' instead of fluentform_validate_input_item_' . $field['element'] |
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); |
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|
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$error = apply_filters('fluentform/validate_input_item_' . $field['element'], $error, $field, $formData, $fields, $this->form, $errors); |
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if ($error) { |
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if (empty($errors[$inputName])) { |
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$errors[$inputName] = []; |
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} |
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if (is_string($error)) { |
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$error = [fluentform_sanitize_html($error)]; |
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} else { |
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if (is_array($error)) { |
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foreach ($error as $rule => $message) { |
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$error[$rule] = fluentform_sanitize_html($message); |
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} |
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} |
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} |
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$errors[$inputName] = array_merge($error, $errors[$inputName]); |
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} |
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} |
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|
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$errors = apply_filters_deprecated('fluentform_validation_errors', [ |
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$errors, |
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$formData, |
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$this->form, |
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$fields |
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], |
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FLUENTFORM_FRAMEWORK_UPGRADE, |
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'fluentform/validation_errors', |
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'Use fluentform/validation_errors instead of fluentform_validation_errors.' |
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); |
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|
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$errors = apply_filters('fluentform/validation_errors', $errors, $formData, $this->form, $fields); |
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|
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if ('yes' == Helper::getFormMeta($this->form->id, '_has_user_registration') && !get_current_user_id()) { |
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$errors = apply_filters_deprecated('fluentform_validation_user_registration_errors', [ |
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$errors, |
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$formData, |
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$this->form, |
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$fields |
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], |
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FLUENTFORM_FRAMEWORK_UPGRADE, |
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'fluentform/validation_user_registration_errors', |
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'Use fluentform/validation_user_registration_errors instead of fluentform_validation_user_registration_errors.' |
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); |
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|
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$errors = apply_filters('fluentform/validation_user_registration_errors', $errors, $formData, $this->form, $fields); |
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} |
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|
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if ('yes' == Helper::getFormMeta($this->form->id, '_has_user_update') && get_current_user_id()) { |
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$errors = apply_filters_deprecated('fluentform_validation_user_update_errors', [ |
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$errors, |
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$formData, |
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$this->form, |
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$fields |
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], |
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FLUENTFORM_FRAMEWORK_UPGRADE, |
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'fluentform/validation_user_update_errors', |
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'Use fluentform/validation_user_update_errors instead of fluentform_validation_user_update_errors.' |
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); |
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$errors = apply_filters('fluentform/validation_user_update_errors', $errors, $formData, $this->form, $fields); |
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} |
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|
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if ('update' == Arr::get(Helper::getFormMeta($this->form->id, 'postFeeds'), 'post_form_type')) { |
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$errors = apply_filters('fluentform/validation_post_update_errors', $errors, $formData, $this->form, $fields); |
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} |
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|
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if ($errors) { |
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// phpcs:ignore WordPress.Security.EscapeOutput.ExceptionNotEscaped -- Exception message, not output |
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throw new ValidationException('', 423, null, ['errors' => $errors]); |
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} |
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|
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return true; |
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} |
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|
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protected function validateInput($field, $formData, $form, $fieldName = '', $inputValue = []) |
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{ |
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return Helper::validateInput($field, $formData, $form, $fieldName, $inputValue); |
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} |
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|
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/** |
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* Prevents malicious attacks when the submission |
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* count exceeds in an allowed interval. |
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* @throws ValidationException |
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*/ |
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public function preventMaliciousAttacks() |
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{ |
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$prevent = apply_filters('fluentform/prevent_malicious_attacks', true, $this->form->id); |
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|
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if ($prevent) { |
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$maxSubmissionCount = apply_filters('fluentform/max_submission_count', 5, $this->form->id); |
| 261 |
$minSubmissionInterval = apply_filters('fluentform/min_submission_interval', 30, $this->form->id); |
| 262 |
|
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$interval = date('Y-m-d H:i:s', strtotime(current_time('mysql')) - $minSubmissionInterval); |
| 264 |
|
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$clientIp = sanitize_text_field($this->app->request->getIp()); |
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$submissionCount = wpFluent()->table('fluentform_submissions') |
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->where('status', '!=', 'trashed') |
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->where('ip', $clientIp ?: '0.0.0.0') |
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->where('created_at', '>=', $interval) |
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->count(); |
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|
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if ($submissionCount >= $maxSubmissionCount) { |
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throw new ValidationException('', 429, null, [ |
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'errors' => [ |
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'restricted' => [ |
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// phpcs:ignore WordPress.Security.EscapeOutput.ExceptionNotEscaped -- Sanitized by fluentform_sanitize_html |
| 277 |
fluentform_sanitize_html(apply_filters( |
| 278 |
'fluentform/too_many_requests', |
| 279 |
__('Too Many Requests.', 'fluentform'), |
| 280 |
$this->form->id |
| 281 |
)), |
| 282 |
], |
| 283 |
] |
| 284 |
]); |
| 285 |
} |
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} |
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} |
| 288 |
|
| 289 |
/** |
| 290 |
* Validate form data based on the form restrictions settings. |
| 291 |
* |
| 292 |
* @param $fields |
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* @throws ValidationException |
| 294 |
*/ |
| 295 |
private function validateRestrictions(&$fields) |
| 296 |
{ |
| 297 |
$formSettings = FormMeta::retrieve('formSettings', $this->form->id); |
| 298 |
|
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$this->form->settings = is_array($formSettings) ? $formSettings : []; |
| 300 |
|
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$isAllowed = [ |
| 302 |
'status' => true, |
| 303 |
'message' => '', |
| 304 |
]; |
| 305 |
|
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// This will check the following restriction settings. |
| 307 |
// 1. limitNumberOfEntries |
| 308 |
// 2. scheduleForm |
| 309 |
// 3. requireLogin |
| 310 |
// 4. restricted submission based on ip, country and keywords |
| 311 |
|
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/* This filter is deprecated and will be removed soon */ |
| 313 |
$isAllowed = apply_filters('fluentform_is_form_renderable', $isAllowed, $this->form); |
| 314 |
|
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$isAllowed = apply_filters('fluentform/is_form_renderable', $isAllowed, $this->form); |
| 316 |
|
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if (!$isAllowed['status']) { |
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throw new ValidationException('', 422, null, [ |
| 319 |
'errors' => [ |
| 320 |
'restricted' => [ |
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// phpcs:ignore WordPress.Security.EscapeOutput.ExceptionNotEscaped -- Sanitized by fluentform_sanitize_html |
| 322 |
fluentform_sanitize_html($isAllowed['message']), |
| 323 |
], |
| 324 |
], |
| 325 |
]); |
| 326 |
} |
| 327 |
|
| 328 |
// Since we are here, we should now handle if the form should be allowed to submit empty. |
| 329 |
$restrictions = Arr::get($this->form->settings, 'restrictions.denyEmptySubmission', []); |
| 330 |
|
| 331 |
$this->handleDenyEmptySubmission($restrictions, $fields); |
| 332 |
|
| 333 |
$formRestrictions = Arr::get($this->form->settings, 'restrictions.restrictForm', []); |
| 334 |
|
| 335 |
$this->handleRestrictedSubmission($formRestrictions, $fields); |
| 336 |
} |
| 337 |
|
| 338 |
/** |
| 339 |
* Handle response when empty form submission is not allowed. |
| 340 |
* |
| 341 |
* @param array $settings |
| 342 |
* @param $fields |
| 343 |
* @throws ValidationException |
| 344 |
*/ |
| 345 |
private function handleDenyEmptySubmission($settings, &$fields) |
| 346 |
{ |
| 347 |
// Determine whether empty form submission is allowed or not. |
| 348 |
if (Arr::isTrue($settings, 'enabled')) { |
| 349 |
// confirm this form has no required fields. |
| 350 |
if (!FormFieldsParser::hasRequiredFields($this->form, $fields)) { |
| 351 |
// Filter out the form data which doesn't have values. |
| 352 |
$filteredFormData = array_filter( |
| 353 |
// Filter out the other meta fields that aren't actual inputs. |
| 354 |
array_intersect_key($this->formData, $fields) |
| 355 |
); |
| 356 |
if (!count(Helper::arrayFilterRecursive($filteredFormData))) { |
| 357 |
$defaultMessage = esc_html(__('Sorry! You can\'t submit an empty form.','fluentform')); |
| 358 |
$customMessage = Arr::get($settings, 'message'); |
| 359 |
$customMessage = fluentform_sanitize_html(apply_filters('fluentform/deny_empty_submission_message', $customMessage, $this->form)); |
| 360 |
|
| 361 |
throw new ValidationException('', 422, null, [ |
| 362 |
'errors' => [ |
| 363 |
'restricted' => [ |
| 364 |
// phpcs:ignore WordPress.Security.EscapeOutput.ExceptionNotEscaped -- Sanitized by fluentform_sanitize_html |
| 365 |
!empty($customMessage) ? fluentform_sanitize_html($customMessage) : fluentform_sanitize_html($defaultMessage), |
| 366 |
], |
| 367 |
], |
| 368 |
]); |
| 369 |
} |
| 370 |
} |
| 371 |
} |
| 372 |
} |
| 373 |
|
| 374 |
/** |
| 375 |
* Handle response when form submission is restricted based on ip, country or keywords. |
| 376 |
* |
| 377 |
* @param array $settings |
| 378 |
* @param $fields |
| 379 |
* @throws ValidationException |
| 380 |
*/ |
| 381 |
protected function handleRestrictedSubmission($settings, &$fields) |
| 382 |
{ |
| 383 |
// Determine this restriction is enabled ot not |
| 384 |
if (!Arr::isTrue($settings, 'enabled')) { |
| 385 |
return; |
| 386 |
} |
| 387 |
|
| 388 |
$rawIp = $this->app->request->getIp(); |
| 389 |
if (is_array($rawIp)) { |
| 390 |
$rawIp = Arr::get($rawIp, '0'); |
| 391 |
} |
| 392 |
$ip = sanitize_text_field($rawIp); |
| 393 |
if ($ip) { |
| 394 |
$this->checkIpRestriction($settings, $ip); |
| 395 |
} |
| 396 |
|
| 397 |
$isCountryRestrictionEnabled = Arr::isTrue($settings, 'fields.country.status'); |
| 398 |
if ($isCountryRestrictionEnabled) { |
| 399 |
$country = $this->resolveCountryFromIp($ip); |
| 400 |
|
| 401 |
if (!$country) { |
| 402 |
$this->handleUnresolvedCountry($settings); |
| 403 |
} |
| 404 |
|
| 405 |
$this->checkCountryRestriction($settings, $country); |
| 406 |
} |
| 407 |
|
| 408 |
$this->checkKeyWordRestriction($settings); |
| 409 |
} |
| 410 |
|
| 411 |
|
| 412 |
/** |
| 413 |
* Validate nonce. |
| 414 |
* @throws ValidationException |
| 415 |
*/ |
| 416 |
protected function validateNonce() |
| 417 |
{ |
| 418 |
$formId = $this->form->id; |
| 419 |
$shouldVerifyNonce = false; |
| 420 |
/* This filter is deprecated and will be removed soon. */ |
| 421 |
$shouldVerifyNonce = $this->app->applyFilters('fluentform_nonce_verify', $shouldVerifyNonce, $formId); |
| 422 |
|
| 423 |
$shouldVerifyNonce = $this->app->applyFilters('fluentform/nonce_verify', $shouldVerifyNonce, $formId); |
| 424 |
|
| 425 |
if ($shouldVerifyNonce) { |
| 426 |
$nonce = Arr::get($this->formData, '_fluentform_' . $formId . '_fluentformnonce'); |
| 427 |
if (!wp_verify_nonce($nonce, 'fluentform-submit-form')) { |
| 428 |
$errors = apply_filters_deprecated( |
| 429 |
'fluentForm_nonce_error', |
| 430 |
[ |
| 431 |
'_fluentformnonce' => [ |
| 432 |
__('Nonce verification failed, please try again.', 'fluentform'), |
| 433 |
], |
| 434 |
], |
| 435 |
FLUENTFORM_FRAMEWORK_UPGRADE, |
| 436 |
'fluentForm/nonce_error', |
| 437 |
'Use fluentForm/nonce_error instead of fluentForm_nonce_error.' |
| 438 |
); |
| 439 |
|
| 440 |
$errors = $this->app->applyFilters('fluentForm/nonce_error', $errors); |
| 441 |
// phpcs:ignore WordPress.Security.EscapeOutput.ExceptionNotEscaped -- Exception message, not output |
| 442 |
throw new ValidationException('', 422, null, ['errors' => $errors]); |
| 443 |
} |
| 444 |
} |
| 445 |
} |
| 446 |
|
| 447 |
/** Validate Akismet Spam |
| 448 |
* @throws ValidationException |
| 449 |
*/ |
| 450 |
public function handleAkismetSpamError() |
| 451 |
{ |
| 452 |
$settings = get_option('_fluentform_global_form_settings'); |
| 453 |
if (!$settings || 'validation_failed' != Arr::get($settings, 'misc.akismet_validation')) { |
| 454 |
return; |
| 455 |
} |
| 456 |
|
| 457 |
$errors = [ |
| 458 |
'_fluentformakismet' => __('Submission marked as spammed. Please try again', 'fluentform'), |
| 459 |
]; |
| 460 |
// phpcs:ignore WordPress.Security.EscapeOutput.ExceptionNotEscaped -- Exception message, not output |
| 461 |
throw new ValidationException('', 422, null, ['errors' => $errors]); |
| 462 |
} |
| 463 |
|
| 464 |
/** Validate CleanTalk Spam |
| 465 |
* @throws ValidationException |
| 466 |
*/ |
| 467 |
public function handleCleanTalkSpamError() |
| 468 |
{ |
| 469 |
$settings = get_option('_fluentform_global_form_settings'); |
| 470 |
if (!$settings || 'validation_failed' != Arr::get($settings, 'misc.cleantalk_validation')) { |
| 471 |
return; |
| 472 |
} |
| 473 |
|
| 474 |
$errors = [ |
| 475 |
'_fluentformcleantalk' => __('Submission marked as spammed. Please try again', 'fluentform'), |
| 476 |
]; |
| 477 |
// phpcs:ignore WordPress.Security.EscapeOutput.ExceptionNotEscaped -- Exception message, not output |
| 478 |
throw new ValidationException('', 422, null, ['errors' => $errors]); |
| 479 |
} |
| 480 |
|
| 481 |
/** Validate CleanTalk Spam While Using API |
| 482 |
* @throws ValidationException |
| 483 |
*/ |
| 484 |
public function handleCleanTalkSpamErrorUsingAPi() |
| 485 |
{ |
| 486 |
$cleantalkSettings = get_option('_fluentform_cleantalk_details'); |
| 487 |
|
| 488 |
if ( |
| 489 |
!$cleantalkSettings || |
| 490 |
'validation_failed' != Arr::get($cleantalkSettings, 'validation') |
| 491 |
) { |
| 492 |
return; |
| 493 |
} |
| 494 |
|
| 495 |
$errors = [ |
| 496 |
'_fluentformcleantalk' => __('Submission marked as spammed. Please try again', 'fluentform'), |
| 497 |
]; |
| 498 |
// phpcs:ignore WordPress.Security.EscapeOutput.ExceptionNotEscaped -- Exception message, not output |
| 499 |
throw new ValidationException('', 422, null, ['errors' => $errors]); |
| 500 |
} |
| 501 |
|
| 502 |
public function isAkismetSpam($formData, $form) |
| 503 |
{ |
| 504 |
if (!AkismetHandler::isEnabled()) { |
| 505 |
return false; |
| 506 |
} |
| 507 |
$isSpamCheck = apply_filters_deprecated( |
| 508 |
'fluentform_akismet_check_spam', |
| 509 |
[ |
| 510 |
true, |
| 511 |
$form->id, |
| 512 |
$formData |
| 513 |
], |
| 514 |
FLUENTFORM_FRAMEWORK_UPGRADE, |
| 515 |
'fluentform/akismet_check_spam', |
| 516 |
'Use fluentform/akismet_check_spam instead of fluentform_akismet_check_spam.' |
| 517 |
); |
| 518 |
|
| 519 |
$isSpamCheck = apply_filters('fluentform/akismet_check_spam', $isSpamCheck, $form->id, $formData); |
| 520 |
|
| 521 |
if (!$isSpamCheck) { |
| 522 |
return false; |
| 523 |
} |
| 524 |
// Let's validate now |
| 525 |
$isSpam = AkismetHandler::isSpamSubmission($formData, $form); |
| 526 |
|
| 527 |
$isSpam = apply_filters_deprecated( |
| 528 |
'fluentform_akismet_spam_result', |
| 529 |
[ |
| 530 |
$isSpam, |
| 531 |
$form->id, |
| 532 |
$formData |
| 533 |
], |
| 534 |
FLUENTFORM_FRAMEWORK_UPGRADE, |
| 535 |
'fluentform/akismet_spam_result', |
| 536 |
'Use fluentform/akismet_spam_result instead of fluentform_akismet_spam_result.' |
| 537 |
); |
| 538 |
return apply_filters('fluentform/akismet_spam_result', $isSpam, $form->id, $formData); |
| 539 |
} |
| 540 |
|
| 541 |
public function isCleanTalkSpam($formData, $form) |
| 542 |
{ |
| 543 |
if (!CleanTalkHandler::isEnabled()) { |
| 544 |
return false; |
| 545 |
} |
| 546 |
$isSpamCheck = apply_filters('fluentform/cleantalk_check_spam', true, $form->id, $formData); |
| 547 |
|
| 548 |
if (!$isSpamCheck) { |
| 549 |
return false; |
| 550 |
} |
| 551 |
$isSpam = CleanTalkHandler::isSpamSubmission($formData, $form); |
| 552 |
|
| 553 |
return apply_filters('fluentform/cleantalk_spam_result', $isSpam, $form->id, $formData); |
| 554 |
} |
| 555 |
|
| 556 |
public function isCleanTalkSpamUsingApi($formData, $form) |
| 557 |
{ |
| 558 |
if (!CleanTalkHandler::isCleantalkActivated()) { |
| 559 |
return false; |
| 560 |
} |
| 561 |
|
| 562 |
$isSpamCheck = apply_filters('fluentform/cleantalk_check_spam', true, $form->id, $formData); |
| 563 |
|
| 564 |
if (!$isSpamCheck) { |
| 565 |
return false; |
| 566 |
} |
| 567 |
|
| 568 |
$isSpam = CleanTalkHandler::spamSubmissionCheckWithApi($formData, $form); |
| 569 |
|
| 570 |
return apply_filters('fluentform/cleantalk_spam_result', $isSpam, $form->id, $formData); |
| 571 |
} |
| 572 |
|
| 573 |
/** |
| 574 |
* Validate reCaptcha. |
| 575 |
* Uses 'fluentform/disable_captcha' filter with 'recaptcha' as the captcha type since 6.0.3 |
| 576 |
* @throws ValidationException |
| 577 |
*/ |
| 578 |
private function validateReCaptcha() |
| 579 |
{ |
| 580 |
// Check if autoload_captcha is enabled and if it's not recaptcha, skip validation |
| 581 |
if ($this->shouldSkipCaptchaValidation('recaptcha')) { |
| 582 |
return; |
| 583 |
} |
| 584 |
|
| 585 |
$hasAutoRecap = apply_filters_deprecated( |
| 586 |
'ff_has_auto_recaptcha', |
| 587 |
[ |
| 588 |
false |
| 589 |
], |
| 590 |
FLUENTFORM_FRAMEWORK_UPGRADE, |
| 591 |
'fluentform/has_recaptcha', |
| 592 |
'Use fluentform/has_recaptcha instead of ff_has_auto_recaptcha.' |
| 593 |
); |
| 594 |
$autoInclude = apply_filters('fluentform/has_recaptcha', $hasAutoRecap); |
| 595 |
$disableReCaptcha = apply_filters('fluentform/disable_captcha', false, $this->form, 'recaptcha'); |
| 596 |
|
| 597 |
if (!$disableReCaptcha && (FormFieldsParser::hasElement($this->form, 'recaptcha') || $autoInclude)) { |
| 598 |
$keys = get_option('_fluentform_reCaptcha_details'); |
| 599 |
$token = Arr::get($this->formData, 'g-recaptcha-response'); |
| 600 |
$version = 'v2_visible'; |
| 601 |
if (!empty($keys['api_version'])) { |
| 602 |
$version = $keys['api_version']; |
| 603 |
} |
| 604 |
$isValid = ReCaptcha::validate($token, $keys['secretKey'], $version); |
| 605 |
|
| 606 |
if (!$isValid) { |
| 607 |
// phpcs:ignore WordPress.Security.EscapeOutput.ExceptionNotEscaped -- Exception message, not output |
| 608 |
throw new ValidationException('', 422, null, [ |
| 609 |
'errors' => [ |
| 610 |
'g-recaptcha-response' => [ |
| 611 |
esc_html(__('reCaptcha verification failed, please try again.', 'fluentform')), |
| 612 |
], |
| 613 |
], |
| 614 |
]); |
| 615 |
} |
| 616 |
} |
| 617 |
} |
| 618 |
|
| 619 |
/** |
| 620 |
* Validate hCaptcha. |
| 621 |
* |
| 622 |
* @throws ValidationException |
| 623 |
*/ |
| 624 |
private function validateHCaptcha() |
| 625 |
{ |
| 626 |
// Check if autoload_captcha is enabled and if it's not hcaptcha, skip validation |
| 627 |
if ($this->shouldSkipCaptchaValidation('hcaptcha')) { |
| 628 |
return; |
| 629 |
} |
| 630 |
$hasAutoHcap = apply_filters_deprecated( |
| 631 |
'ff_has_auto_hcaptcha', |
| 632 |
[ |
| 633 |
false |
| 634 |
], |
| 635 |
FLUENTFORM_FRAMEWORK_UPGRADE, |
| 636 |
'fluentform/has_hcaptcha', |
| 637 |
'Use fluentform/has_hcaptcha instead of ff_has_auto_hcaptcha.' |
| 638 |
); |
| 639 |
$autoInclude = apply_filters('fluentform/has_hcaptcha', $hasAutoHcap); |
| 640 |
$disableHCaptcha = apply_filters('fluentform/disable_captcha', false, $this->form, 'hcaptcha'); |
| 641 |
|
| 642 |
FormFieldsParser::resetData(); |
| 643 |
if (!$disableHCaptcha && (FormFieldsParser::hasElement($this->form, 'hcaptcha') || $autoInclude)) { |
| 644 |
$keys = get_option('_fluentform_hCaptcha_details'); |
| 645 |
$token = Arr::get($this->formData, 'h-captcha-response'); |
| 646 |
$isValid = HCaptcha::validate($token, $keys['secretKey']); |
| 647 |
|
| 648 |
if (!$isValid) { |
| 649 |
throw new ValidationException('', 422, null, [ |
| 650 |
'errors' => [ |
| 651 |
'h-captcha-response' => [ |
| 652 |
esc_html(__('hCaptcha verification failed, please try again.', 'fluentform')), |
| 653 |
], |
| 654 |
], |
| 655 |
]); |
| 656 |
} |
| 657 |
} |
| 658 |
} |
| 659 |
|
| 660 |
/** |
| 661 |
* Validate turnstile. |
| 662 |
* |
| 663 |
* @throws ValidationException |
| 664 |
*/ |
| 665 |
private function validateTurnstile() |
| 666 |
{ |
| 667 |
// Check if autoload_captcha is enabled and if it's not turnstile, skip validation |
| 668 |
if ($this->shouldSkipCaptchaValidation('turnstile')) { |
| 669 |
return; |
| 670 |
} |
| 671 |
|
| 672 |
$hasAutoTurnsTile = apply_filters_deprecated( |
| 673 |
'ff_has_auto_turnstile', |
| 674 |
[ |
| 675 |
false |
| 676 |
], |
| 677 |
FLUENTFORM_FRAMEWORK_UPGRADE, |
| 678 |
'fluentform/has_turnstile', |
| 679 |
'Use fluentform/has_turnstile instead of ff_has_auto_turnstile.' |
| 680 |
); |
| 681 |
$autoInclude = apply_filters('fluentform/has_turnstile', $hasAutoTurnsTile); |
| 682 |
$disableTurnsTile = apply_filters('fluentform/disable_captcha', false, $this->form, 'turnstile'); |
| 683 |
|
| 684 |
if (!$disableTurnsTile && (FormFieldsParser::hasElement($this->form, 'turnstile') || $autoInclude)) { |
| 685 |
$keys = get_option('_fluentform_turnstile_details'); |
| 686 |
$token = Arr::get($this->formData, 'cf-turnstile-response'); |
| 687 |
|
| 688 |
$isValid = Turnstile::validate($token, $keys['secretKey']); |
| 689 |
|
| 690 |
if (!$isValid) { |
| 691 |
throw new ValidationException('', 422, null, [ |
| 692 |
'errors' => [ |
| 693 |
'cf-turnstile-response' => [ |
| 694 |
esc_html(__('Turnstile verification failed, please try again.', 'fluentform')), |
| 695 |
], |
| 696 |
], |
| 697 |
]); |
| 698 |
} |
| 699 |
} |
| 700 |
} |
| 701 |
|
| 702 |
|
| 703 |
/** |
| 704 |
* Delegate the validation rules & messages to the |
| 705 |
* ones that the validation library recognizes. |
| 706 |
* |
| 707 |
* @param $rules |
| 708 |
* @param $messages |
| 709 |
* @param array $search |
| 710 |
* @param array $replace |
| 711 |
* @return array |
| 712 |
*/ |
| 713 |
protected function delegateValidations($rules, $messages, $search = [], $replace = []) |
| 714 |
{ |
| 715 |
$search = $search ?: ['max_file_size', 'allowed_file_types']; |
| 716 |
$replace = $replace ?: ['max', 'mimes']; |
| 717 |
|
| 718 |
foreach ($rules as &$rule) { |
| 719 |
$rule = str_replace($search, $replace, $rule); |
| 720 |
} |
| 721 |
|
| 722 |
foreach ($messages as $key => $message) { |
| 723 |
$newKey = str_replace($search, $replace, $key); |
| 724 |
$messages[$newKey] = $message; |
| 725 |
unset($messages[$key]); |
| 726 |
} |
| 727 |
|
| 728 |
return [$rules, $messages]; |
| 729 |
} |
| 730 |
|
| 731 |
/** |
| 732 |
* Decide what an unresolved country means for this rule. |
| 733 |
* |
| 734 |
* A block list stays permissive: the providers are third party, and their |
| 735 |
* outage must not stop a site taking submissions. An allow list cannot be |
| 736 |
* honoured at all without a country - letting it through would turn "only |
| 737 |
* these countries" into "anyone" - so it fails closed. Either case can be |
| 738 |
* inverted with the filter. |
| 739 |
* |
| 740 |
* @throws ValidationException |
| 741 |
*/ |
| 742 |
private function handleUnresolvedCountry($settings) |
| 743 |
{ |
| 744 |
// A rule with no countries chosen cannot express an intent, so it must |
| 745 |
// not acquire a brand new way to reject people. |
| 746 |
if (!array_filter((array) Arr::get($settings, 'fields.country.values', []))) { |
| 747 |
return; |
| 748 |
} |
| 749 |
|
| 750 |
// Derived negatively on purpose: checkCountryRestriction() treats |
| 751 |
// anything that is not fail_on_condition_met as an allow list, and a |
| 752 |
// form saved before validation_type existed has the key absent. Testing |
| 753 |
// for the allow-list string instead would leave those forms enforced as |
| 754 |
// an allow list while being failed open as a block list. |
| 755 |
$isAllowList = 'fail_on_condition_met' !== Arr::get($settings, 'fields.country.validation_type'); |
| 756 |
|
| 757 |
$failClosed = apply_filters( |
| 758 |
'fluentform/country_restriction_fail_closed', |
| 759 |
$isAllowList, |
| 760 |
$this->form, |
| 761 |
$settings |
| 762 |
); |
| 763 |
|
| 764 |
if (!$failClosed) { |
| 765 |
return; |
| 766 |
} |
| 767 |
|
| 768 |
$default = __('Sorry! We could not verify your location, so this form cannot be submitted right now.', 'fluentform'); |
| 769 |
|
| 770 |
self::throwValidationException( |
| 771 |
apply_filters('fluentform/country_unresolved_message', $default, $this->form) |
| 772 |
); |
| 773 |
} |
| 774 |
|
| 775 |
/** |
| 776 |
* Resolve the visitor country, trying each provider in turn. |
| 777 |
* |
| 778 |
* A geo provider can only answer for a routable address; for a private or |
| 779 |
* reserved one ipinfo.io replies {"bogon":true} with no country and apip.cc |
| 780 |
* replies status:fail. resolveIp() yields such an address for CLI and cron |
| 781 |
* submissions, for an unparseable REMOTE_ADDR, and on a site whose reverse |
| 782 |
* proxy sits on a private network. Skipping the lookups there reaches the |
| 783 |
* same answer without two blocking HTTP timeouts. |
| 784 |
* |
| 785 |
* @return string|null |
| 786 |
*/ |
| 787 |
private function resolveCountryFromIp($ip) |
| 788 |
{ |
| 789 |
if (!filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_NO_PRIV_RANGE | FILTER_FLAG_NO_RES_RANGE)) { |
| 790 |
return Helper::getCountryCodeFromHeaders(true); |
| 791 |
} |
| 792 |
|
| 793 |
$cached = self::cachedCountry($ip); |
| 794 |
|
| 795 |
if (false !== $cached) { |
| 796 |
return 'none' === $cached ? null : $cached; |
| 797 |
} |
| 798 |
|
| 799 |
$country = null; |
| 800 |
|
| 801 |
if ($ipInfo = $this->getIpInfo($ip)) { |
| 802 |
$country = self::normalizeCountry(Arr::get($ipInfo, 'country')); |
| 803 |
} |
| 804 |
|
| 805 |
$answered = null !== $country; |
| 806 |
|
| 807 |
if (!$country) { |
| 808 |
if (get_transient('fluentform_geo_apip_backoff')) { |
| 809 |
// Nothing was asked, so there is no verdict to remember. Caching |
| 810 |
// here would outlive the back-off and pin the miss indefinitely. |
| 811 |
return Helper::getCountryCodeFromHeaders(true); |
| 812 |
} |
| 813 |
|
| 814 |
$country = $this->getIpBasedOnCountry($ip, $answered); |
| 815 |
} |
| 816 |
|
| 817 |
if ($answered) { |
| 818 |
self::cacheCountry($ip, $country); |
| 819 |
} |
| 820 |
|
| 821 |
return $country; |
| 822 |
} |
| 823 |
|
| 824 |
/** |
| 825 |
* Providers are third parties; only a real ISO 3166-1 alpha-2 code may |
| 826 |
* reach enforcement or the cache. |
| 827 |
* |
| 828 |
* @param mixed $country |
| 829 |
* @return string|null |
| 830 |
*/ |
| 831 |
private static function normalizeCountry($country) |
| 832 |
{ |
| 833 |
if (!is_string($country)) { |
| 834 |
return null; |
| 835 |
} |
| 836 |
|
| 837 |
$country = strtoupper(trim($country)); |
| 838 |
|
| 839 |
return preg_match('/^[A-Z]{2}$/', $country) ? $country : null; |
| 840 |
} |
| 841 |
|
| 842 |
/** |
| 843 |
* @param string $ip |
| 844 |
* @return string|false 'none' for a cached miss, false when not cached |
| 845 |
*/ |
| 846 |
private static function cachedCountry($ip) |
| 847 |
{ |
| 848 |
$shard = get_transient(self::cacheShardKey($ip)); |
| 849 |
|
| 850 |
if (!is_array($shard)) { |
| 851 |
return false; |
| 852 |
} |
| 853 |
|
| 854 |
$key = md5($ip); |
| 855 |
|
| 856 |
if (!isset($shard[$key]['c'], $shard[$key]['t'])) { |
| 857 |
return false; |
| 858 |
} |
| 859 |
|
| 860 |
// Each entry carries its own stamp because the row's TTL is pushed |
| 861 |
// forward by every write, so on a busy form the row never expires. |
| 862 |
if ((time() - (int) $shard[$key]['t']) > self::GEO_CACHE_MINUTES * MINUTE_IN_SECONDS) { |
| 863 |
return false; |
| 864 |
} |
| 865 |
|
| 866 |
return $shard[$key]['c']; |
| 867 |
} |
| 868 |
|
| 869 |
/** |
| 870 |
* Sharded so the rows stay small and concurrent submissions rarely collide |
| 871 |
* on the same read-modify-write, and bounded so a flood of unique addresses |
| 872 |
* cannot grow wp_options without limit. Addresses are hashed: this store is |
| 873 |
* not submission data and must not become an IP log. |
| 874 |
* |
| 875 |
* @param string $ip |
| 876 |
* @param string|null $country |
| 877 |
* @return void |
| 878 |
*/ |
| 879 |
private static function cacheCountry($ip, $country) |
| 880 |
{ |
| 881 |
$shardKey = self::cacheShardKey($ip); |
| 882 |
$shard = get_transient($shardKey); |
| 883 |
$shard = is_array($shard) ? $shard : []; |
| 884 |
|
| 885 |
$key = md5($ip); |
| 886 |
|
| 887 |
unset($shard[$key]); |
| 888 |
$shard[$key] = ['c' => $country ?: 'none', 't' => time()]; |
| 889 |
|
| 890 |
if (count($shard) > self::GEO_CACHE_SHARD_MAX) { |
| 891 |
$shard = array_slice($shard, -self::GEO_CACHE_SHARD_MAX, null, true); |
| 892 |
} |
| 893 |
|
| 894 |
set_transient($shardKey, $shard, self::GEO_CACHE_MINUTES * MINUTE_IN_SECONDS); |
| 895 |
} |
| 896 |
|
| 897 |
/** |
| 898 |
* @param string $ip |
| 899 |
* @return string |
| 900 |
*/ |
| 901 |
private static function cacheShardKey($ip) |
| 902 |
{ |
| 903 |
return 'fluentform_geo_country_' . substr(md5($ip), 0, 2); |
| 904 |
} |
| 905 |
|
| 906 |
/** |
| 907 |
* Count an inconclusive answer, and park the provider once they repeat. |
| 908 |
* |
| 909 |
* A single timeout or unusable body says nothing about the provider's |
| 910 |
* health for other visitors, so it must not disable enforcement for them; |
| 911 |
* a run of them does. |
| 912 |
* |
| 913 |
* @param string $provider |
| 914 |
* @return void |
| 915 |
*/ |
| 916 |
private static function recordProviderStrike($provider) |
| 917 |
{ |
| 918 |
$key = 'fluentform_geo_' . $provider . '_strikes'; |
| 919 |
$strikes = (int) get_transient($key) + 1; |
| 920 |
|
| 921 |
if ($strikes >= self::GEO_PROVIDER_STRIKES) { |
| 922 |
delete_transient($key); |
| 923 |
self::backOffProvider($provider); |
| 924 |
|
| 925 |
return; |
| 926 |
} |
| 927 |
|
| 928 |
set_transient($key, $strikes, self::GEO_BACKOFF_MINUTES * MINUTE_IN_SECONDS); |
| 929 |
} |
| 930 |
|
| 931 |
/** |
| 932 |
* Whether a status code says the provider is unusable for everyone, rather |
| 933 |
* than just for the address being looked up. |
| 934 |
* |
| 935 |
* Parking a provider is global, so only a provider-wide fault may do it: |
| 936 |
* rejected credentials, exhausted quota, or the provider being down. A |
| 937 |
* per-address oddity must never disable enforcement for other visitors. |
| 938 |
* |
| 939 |
* @param int|string $code |
| 940 |
* @return bool |
| 941 |
*/ |
| 942 |
private static function isProviderWideFailure($code) |
| 943 |
{ |
| 944 |
$code = (int) $code; |
| 945 |
|
| 946 |
return in_array($code, [401, 403, 429], true) || $code >= 500; |
| 947 |
} |
| 948 |
|
| 949 |
/** |
| 950 |
* Park a provider that just failed, so it is not re-asked per submission. |
| 951 |
* |
| 952 |
* @param string $provider |
| 953 |
* @return void |
| 954 |
*/ |
| 955 |
private static function backOffProvider($provider) |
| 956 |
{ |
| 957 |
set_transient( |
| 958 |
'fluentform_geo_' . $provider . '_backoff', |
| 959 |
1, |
| 960 |
self::GEO_BACKOFF_MINUTES * MINUTE_IN_SECONDS |
| 961 |
); |
| 962 |
} |
| 963 |
|
| 964 |
/** |
| 965 |
* Get IP info from ipinfo.io |
| 966 |
* |
| 967 |
* Returns false on any failure - rejected token, outage, malformed body - |
| 968 |
* so the caller falls through to apip.cc and then to the request headers. |
| 969 |
* A misconfigured token is an admin error; it must not cancel every |
| 970 |
* visitor's submission. |
| 971 |
* |
| 972 |
* @return array|false |
| 973 |
*/ |
| 974 |
private function getIpInfo($ip) { |
| 975 |
$token = Helper::getIpinfo(); |
| 976 |
|
| 977 |
if (!$token || get_transient('fluentform_geo_ipinfo_backoff')) { |
| 978 |
return false; |
| 979 |
} |
| 980 |
|
| 981 |
// Bearer, not a query parameter: a credential in a URL is logged by |
| 982 |
// every outbound proxy the request passes through. |
| 983 |
$data = wp_remote_get('https://ipinfo.io/' . rawurlencode($ip), [ |
| 984 |
'timeout' => self::GEO_TIMEOUT, |
| 985 |
'headers' => ['Authorization' => 'Bearer ' . $token], |
| 986 |
]); |
| 987 |
|
| 988 |
if (is_wp_error($data)) { |
| 989 |
self::recordProviderStrike('ipinfo'); |
| 990 |
|
| 991 |
return false; |
| 992 |
} |
| 993 |
|
| 994 |
$code = wp_remote_retrieve_response_code($data); |
| 995 |
|
| 996 |
if (200 !== $code) { |
| 997 |
if (self::isProviderWideFailure($code)) { |
| 998 |
self::backOffProvider('ipinfo'); |
| 999 |
} |
| 1000 |
|
| 1001 |
return false; |
| 1002 |
} |
| 1003 |
|
| 1004 |
$result = \json_decode(wp_remote_retrieve_body($data), true); |
| 1005 |
|
| 1006 |
// Same reasoning as apip.cc below: a body we cannot use is about this |
| 1007 |
// address, not the provider's health, so it must not count globally. |
| 1008 |
if (!is_array($result)) { |
| 1009 |
return false; |
| 1010 |
} |
| 1011 |
|
| 1012 |
delete_transient('fluentform_geo_ipinfo_strikes'); |
| 1013 |
|
| 1014 |
return $result; |
| 1015 |
} |
| 1016 |
|
| 1017 |
/** |
| 1018 |
* Get IP and Country from apip.cc, falling back to the request headers. |
| 1019 |
* |
| 1020 |
* @return string|null |
| 1021 |
*/ |
| 1022 |
private function getIpBasedOnCountry($ip, &$answered = false) { |
| 1023 |
if (get_transient('fluentform_geo_apip_backoff')) { |
| 1024 |
return Helper::getCountryCodeFromHeaders(true); |
| 1025 |
} |
| 1026 |
|
| 1027 |
$request = wp_remote_get( |
| 1028 |
'https://apip.cc/api-json/' . rawurlencode($ip), |
| 1029 |
['timeout' => self::GEO_TIMEOUT] |
| 1030 |
); |
| 1031 |
|
| 1032 |
if (is_wp_error($request)) { |
| 1033 |
self::recordProviderStrike('apip'); |
| 1034 |
|
| 1035 |
return Helper::getCountryCodeFromHeaders(true); |
| 1036 |
} |
| 1037 |
|
| 1038 |
$code = wp_remote_retrieve_response_code($request); |
| 1039 |
|
| 1040 |
if (200 !== $code) { |
| 1041 |
if (self::isProviderWideFailure($code)) { |
| 1042 |
self::backOffProvider('apip'); |
| 1043 |
} |
| 1044 |
|
| 1045 |
// FINDING-26: the provider gave us nothing. Return the CDN header only |
| 1046 |
// if the site opted into trusting it for enforcement; otherwise null, |
| 1047 |
// which hands the decision to handleUnresolvedCountry(). |
| 1048 |
return Helper::getCountryCodeFromHeaders(true); |
| 1049 |
} |
| 1050 |
|
| 1051 |
// The provider answered about this address, so the result is a verdict |
| 1052 |
// worth remembering even when it is "no country". |
| 1053 |
$answered = true; |
| 1054 |
|
| 1055 |
$body = \json_decode(wp_remote_retrieve_body($request), true); |
| 1056 |
$country = self::normalizeCountry(Arr::get((array) $body, 'CountryCode')); |
| 1057 |
|
| 1058 |
if ('success' === Arr::get((array) $body, 'status') && $country) { |
| 1059 |
delete_transient('fluentform_geo_apip_strikes'); |
| 1060 |
|
| 1061 |
return $country; |
| 1062 |
} |
| 1063 |
|
| 1064 |
// No strike here. A 200 that carries no usable country is an answer about |
| 1065 |
// this address, and which address is looked up is chosen by whoever |
| 1066 |
// submits - letting it count towards a global park would hand a remote |
| 1067 |
// submitter a way to disable the provider for everyone. The miss is |
| 1068 |
// cached against this address instead, which is what stops it being |
| 1069 |
// re-asked on the next submission. |
| 1070 |
return Helper::getCountryCodeFromHeaders(true); |
| 1071 |
} |
| 1072 |
|
| 1073 |
/** |
| 1074 |
* @param $value |
| 1075 |
* @param $providedKeywords |
| 1076 |
* @return bool |
| 1077 |
*/ |
| 1078 |
public static function containsRestrictedKeywords($value, $providedKeywords) { |
| 1079 |
$value = (string) $value; |
| 1080 |
if ('' === $value) { |
| 1081 |
return false; |
| 1082 |
} |
| 1083 |
|
| 1084 |
foreach ((array) $providedKeywords as $keyword) { |
| 1085 |
$keyword = (string) $keyword; |
| 1086 |
if ('' === $keyword || self::isUnusableKeyword($keyword)) { |
| 1087 |
continue; |
| 1088 |
} |
| 1089 |
|
| 1090 |
if (preg_match(self::keywordPattern($keyword), $value)) { |
| 1091 |
return true; |
| 1092 |
} |
| 1093 |
} |
| 1094 |
|
| 1095 |
return false; |
| 1096 |
} |
| 1097 |
|
| 1098 |
/** |
| 1099 |
* A lone punctuation mark or invisible format character is never a usable |
| 1100 |
* restriction keyword. |
| 1101 |
* |
| 1102 |
* The previous implementation stripped these before matching, so an entry |
| 1103 |
* like "." or a stray zero-width space sat in a site's keyword list doing |
| 1104 |
* nothing at all. Now that keywords match on the raw value, such an entry |
| 1105 |
* would hit almost every submission and silently reject the whole form — |
| 1106 |
* and an invisible one (ZWSP, soft hyphen, BOM, picked up by pasting a list |
| 1107 |
* from a document) could never be spotted in the settings field. Skipping |
| 1108 |
* them protects sites carrying a stray entry without costing anything that |
| 1109 |
* ever worked: every character in these two categories was already inert. |
| 1110 |
* |
| 1111 |
* Deliberately NOT skipped: spaces (\p{Zs}) and tabs/newlines (\p{Cc}) did |
| 1112 |
* match under the old tokenizer, so they must keep matching. Currency, math, |
| 1113 |
* arrows, emoji and any multi-character keyword ("$$$", "http://") are |
| 1114 |
* unaffected — only single characters are considered here. |
| 1115 |
* |
| 1116 |
* @param string $keyword |
| 1117 |
* @return bool |
| 1118 |
*/ |
| 1119 |
private static function isUnusableKeyword($keyword) |
| 1120 |
{ |
| 1121 |
return 1 === mb_strlen($keyword, 'UTF-8') && preg_match('/^[\p{P}\p{Cf}]$/u', $keyword); |
| 1122 |
} |
| 1123 |
|
| 1124 |
/** |
| 1125 |
* Build the whole-word matcher for a single restricted keyword. |
| 1126 |
* |
| 1127 |
* Matching stays whole-word (the keyword glued inside a longer word is not a |
| 1128 |
* match), but "word" has to be defined per script rather than by PCRE's \b: |
| 1129 |
* |
| 1130 |
* - \b/\w never treat combining marks as word characters, not even under |
| 1131 |
* (*UCP). Indic scripts write vowels and the virama as marks, so "বাংলা" |
| 1132 |
* (ব + া + ং + ল + া) has no trailing boundary and could never match. |
| 1133 |
* \p{M} is therefore part of the word class. |
| 1134 |
* - Han, Kana, Thai, Lao, Khmer, Myanmar and Tibetan don't separate words at |
| 1135 |
* all, so no boundary can ever exist around a keyword. Whole-word is |
| 1136 |
* meaningless there and the keyword is matched as a substring instead. |
| 1137 |
* |
| 1138 |
* Everything else — underscore, zero-width joiners, non-ASCII digits — stays |
| 1139 |
* a separator, matching the class the previous implementation tokenised on. |
| 1140 |
* That keeps this a strict superset of the old matcher: a keyword that used |
| 1141 |
* to be blocked is still blocked, and padding a keyword with an invisible |
| 1142 |
* ZWNJ can't slip it past the filter. |
| 1143 |
* |
| 1144 |
* @param string $keyword |
| 1145 |
* @return string |
| 1146 |
*/ |
| 1147 |
private static function keywordPattern($keyword) |
| 1148 |
{ |
| 1149 |
$quoted = preg_quote($keyword, '/'); |
| 1150 |
|
| 1151 |
if (preg_match('/[\p{Han}\p{Hiragana}\p{Katakana}\p{Thai}\p{Lao}\p{Khmer}\p{Myanmar}\p{Tibetan}]/u', $keyword)) { |
| 1152 |
return '/' . $quoted . '/ui'; |
| 1153 |
} |
| 1154 |
|
| 1155 |
$wordChar = '\p{L}\p{M}\d'; |
| 1156 |
|
| 1157 |
// Only guard an edge that is itself a word character, so keywords |
| 1158 |
// wrapped in punctuation (e.g. "$$$" or "buy!") stay matchable. |
| 1159 |
$lead = preg_match('/^[' . $wordChar . ']/u', $keyword) ? '(?<![' . $wordChar . '])' : ''; |
| 1160 |
$trail = preg_match('/[' . $wordChar . ']$/u', $keyword) ? '(?![' . $wordChar . '])' : ''; |
| 1161 |
|
| 1162 |
return '/' . $lead . $quoted . $trail . '/ui'; |
| 1163 |
} |
| 1164 |
|
| 1165 |
|
| 1166 |
/** |
| 1167 |
* @throws ValidationException |
| 1168 |
*/ |
| 1169 |
private function checkIpRestriction($settings, $ip) |
| 1170 |
{ |
| 1171 |
if (Arr::isTrue($settings, 'fields.ip.status') && $ip) { |
| 1172 |
$providedIp = array_map('trim', explode(',', (string) Arr::get($settings, 'fields.ip.values', ''))); |
| 1173 |
|
| 1174 |
$isFailed = Arr::get($settings, 'fields.ip.validation_type') === 'fail_on_condition_met'; |
| 1175 |
|
| 1176 |
$failedSubmissionIfExists = $isFailed && in_array($ip, $providedIp); |
| 1177 |
$allowSubmissionIfNotExists = !$isFailed && !in_array($ip, $providedIp); |
| 1178 |
|
| 1179 |
if ($failedSubmissionIfExists || $allowSubmissionIfNotExists) { |
| 1180 |
$defaultMessage = __('Sorry! You can\'t submit a form from your IP address.', 'fluentform'); |
| 1181 |
$message = apply_filters('fluentform/ip_restriction_message', Arr::get($settings, 'fields.ip.message', $defaultMessage), $this->form); |
| 1182 |
self::throwValidationException($message); |
| 1183 |
} |
| 1184 |
} |
| 1185 |
} |
| 1186 |
|
| 1187 |
/** |
| 1188 |
* @throws ValidationException |
| 1189 |
*/ |
| 1190 |
private function checkCountryRestriction($settings, $country) |
| 1191 |
{ |
| 1192 |
if (Arr::isTrue($settings, 'fields.country.status') && $country) { |
| 1193 |
$providedCountry = (array) Arr::get($settings, 'fields.country.values', []); |
| 1194 |
|
| 1195 |
$isFailed = Arr::get($settings, 'fields.country.validation_type') === 'fail_on_condition_met'; |
| 1196 |
|
| 1197 |
$failedSubmissionIfExists = $isFailed && in_array($country, $providedCountry); |
| 1198 |
$allowSubmissionIfNotExists = !$isFailed && !in_array($country, $providedCountry); |
| 1199 |
|
| 1200 |
if ($failedSubmissionIfExists || $allowSubmissionIfNotExists) { |
| 1201 |
$defaultMessage = __('Sorry! You can\'t submit this form from the country you are residing.', 'fluentform'); |
| 1202 |
$message = apply_filters('fluentform/country_restriction_message', Arr::get($settings, 'fields.country.message', $defaultMessage), $this->form); |
| 1203 |
self::throwValidationException($message); |
| 1204 |
} |
| 1205 |
} |
| 1206 |
} |
| 1207 |
|
| 1208 |
private function checkKeyWordRestriction($settings) |
| 1209 |
{ |
| 1210 |
if (!Arr::isTrue($settings, 'fields.keywords.status')) { |
| 1211 |
return; |
| 1212 |
} |
| 1213 |
|
| 1214 |
$keywords = Arr::get($settings, 'fields.keywords.values'); |
| 1215 |
if (!$keywords || !is_string($keywords)) { |
| 1216 |
return; |
| 1217 |
} |
| 1218 |
$providedKeywords = explode(',', $keywords); |
| 1219 |
$providedKeywords = array_filter(array_map('trim', $providedKeywords)); |
| 1220 |
if (!$providedKeywords) { |
| 1221 |
return; |
| 1222 |
} |
| 1223 |
$inputSubmission = array_intersect_key( |
| 1224 |
$this->formData, |
| 1225 |
array_flip( |
| 1226 |
array_keys( |
| 1227 |
FormFieldsParser::getInputs($this->form) |
| 1228 |
) |
| 1229 |
) |
| 1230 |
); |
| 1231 |
$defaultMessage = __('Sorry! Your submission contains some restricted keywords.', 'fluentform'); |
| 1232 |
$message = apply_filters('fluentform/keyword_restriction_message', Arr::get($settings, 'fields.keywords.message', $defaultMessage), $this->form); |
| 1233 |
|
| 1234 |
self::checkKeywordsMatching($inputSubmission, $message, $providedKeywords); |
| 1235 |
} |
| 1236 |
|
| 1237 |
private static function checkKeywordsMatching($inputSubmission, $message, $providedKeywords) |
| 1238 |
{ |
| 1239 |
foreach ($inputSubmission as $value) { |
| 1240 |
if (!empty($value)) { |
| 1241 |
if (is_array($value)) { |
| 1242 |
self::checkKeywordsMatching($value, $message, $providedKeywords); |
| 1243 |
} else { |
| 1244 |
if (self::containsRestrictedKeywords($value, $providedKeywords)) { |
| 1245 |
self::throwValidationException($message); |
| 1246 |
} |
| 1247 |
} |
| 1248 |
} |
| 1249 |
} |
| 1250 |
} |
| 1251 |
|
| 1252 |
/** |
| 1253 |
* @throws ValidationException |
| 1254 |
*/ |
| 1255 |
public static function throwValidationException($message) { |
| 1256 |
throw new ValidationException('', 422, null, [ |
| 1257 |
'errors' => [ |
| 1258 |
'restricted' => [ |
| 1259 |
// phpcs:ignore WordPress.Security.EscapeOutput.ExceptionNotEscaped -- Sanitized by fluentform_sanitize_html |
| 1260 |
fluentform_sanitize_html($message) |
| 1261 |
], |
| 1262 |
], |
| 1263 |
]); |
| 1264 |
} |
| 1265 |
|
| 1266 |
/** |
| 1267 |
* Check if captcha validation should be skipped based on autoload captcha settings |
| 1268 |
* |
| 1269 |
* When autoload captcha is enabled, only the selected captcha type should be validated. |
| 1270 |
* This method returns true if the current captcha type is NOT the selected autoload type, |
| 1271 |
* preventing unnecessary validation of multiple captcha types on the same form. |
| 1272 |
* |
| 1273 |
* @param string $captchaType The captcha type to check ('recaptcha', 'hcaptcha', 'turnstile') |
| 1274 |
* @return bool True if validation should be skipped, false otherwise |
| 1275 |
*/ |
| 1276 |
private function shouldSkipCaptchaValidation($captchaType) |
| 1277 |
{ |
| 1278 |
$globalSettings = get_option('_fluentform_global_form_settings'); |
| 1279 |
$autoloadEnabled = Arr::get($globalSettings, 'misc.autoload_captcha'); |
| 1280 |
|
| 1281 |
// If autoload captcha is not enabled, don't skip any validation |
| 1282 |
if (!$autoloadEnabled) { |
| 1283 |
return false; |
| 1284 |
} |
| 1285 |
|
| 1286 |
$selectedCaptchaType = Arr::get($globalSettings, 'misc.captcha_type'); |
| 1287 |
|
| 1288 |
// If the current captcha type matches the selected autoload type, proceed with validation |
| 1289 |
if ($captchaType === $selectedCaptchaType) { |
| 1290 |
return false; |
| 1291 |
} |
| 1292 |
|
| 1293 |
return true; // Skip validation for non-selected captcha types |
| 1294 |
} |
| 1295 |
} |
| 1296 |
|
