Edit File by line

<?php

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trait WPCF7_ConfigValidator_Form {

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/**

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* Runs error detection for the form section.

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public function validate_form() {

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$section = 'form.body';

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$form = $this->contact_form->prop( 'form' );

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if ( $this->supports( 'multiple_controls_in_label' ) ) {

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if ( $this->detect_multiple_controls_in_label( $section, $form ) ) {

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$this->add_error( $section, 'multiple_controls_in_label',

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array(

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'message' => __( "Multiple form controls are in a single label element.", 'contact-form-7' ),

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)

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);

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} else {

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$this->remove_error( $section, 'multiple_controls_in_label' );

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}

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}

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if ( $this->supports( 'unavailable_names' ) ) {

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$ng_names = $this->detect_unavailable_names( $section, $form );

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if ( $ng_names ) {

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$this->add_error( $section, 'unavailable_names',

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array(

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'message' =>

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/* translators: %names%: a list of form control names */

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__( "Unavailable names (%names%) are used for form controls.", 'contact-form-7' ),

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'params' => array( 'names' => implode( ', ', $ng_names ) ),

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)

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);

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} else {

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$this->remove_error( $section, 'unavailable_names' );

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}

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}

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if ( $this->supports( 'unavailable_html_elements' ) ) {

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if ( $this->detect_unavailable_html_elements( $section, $form ) ) {

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$this->add_error( $section, 'unavailable_html_elements',

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array(

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'message' => __( "Unavailable HTML elements are used in the form template.", 'contact-form-7' ),

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)

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);

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} else {

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$this->remove_error( $section, 'unavailable_html_elements' );

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}

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}

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if ( $this->supports( 'dots_in_names' ) ) {

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if ( $this->detect_dots_in_names( $section, $form ) ) {

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$this->add_error( $section, 'dots_in_names',

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array(

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'message' => __( "Dots are used in form-tag names.", 'contact-form-7' ),

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)

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);

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} else {

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$this->remove_error( $section, 'dots_in_names' );

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}

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}

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if ( $this->supports( 'colons_in_names' ) ) {

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if ( $this->detect_colons_in_names( $section, $form ) ) {

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$this->add_error( $section, 'colons_in_names',

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array(

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'message' => __( "Colons are used in form-tag names.", 'contact-form-7' ),

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)

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);

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} else {

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$this->remove_error( $section, 'colons_in_names' );

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}

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}

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if ( $this->supports( 'upload_filesize_overlimit' ) ) {

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if ( $this->detect_upload_filesize_overlimit( $section, $form ) ) {

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$this->add_error( $section, 'upload_filesize_overlimit',

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array(

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'message' => __( "Uploadable file size exceeds PHP’s maximum acceptable size.", 'contact-form-7' ),

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)

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);

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} else {

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$this->remove_error( $section, 'upload_filesize_overlimit' );

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}

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}

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}

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/**

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* Detects errors of multiple form controls in a single label.

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* @link https://contactform7.com/configuration-errors/multiple-controls-in-label/

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public function detect_multiple_controls_in_label( $section, $content ) {

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$pattern = '%<label(?:[ \t\n]+.*?)?>(.+?)</label>%s';

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if ( preg_match_all( $pattern, $content, $matches ) ) {

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$form_tags_manager = WPCF7_FormTagsManager::get_instance();

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foreach ( $matches[1] as $insidelabel ) {

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$tags = $form_tags_manager->scan( $insidelabel );

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$fields_count = 0;

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foreach ( $tags as $tag ) {

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$is_multiple_controls_container = wpcf7_form_tag_supports(

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$tag->type, 'multiple-controls-container'

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);

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$is_zero_controls_container = wpcf7_form_tag_supports(

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$tag->type, 'zero-controls-container'

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);

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if ( $is_multiple_controls_container ) {

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$fields_count += count( $tag->values );

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if ( $tag->has_option( 'free_text' ) ) {

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$fields_count += 1;

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}

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} elseif ( $is_zero_controls_container ) {

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$fields_count += 0;

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} elseif ( ! empty( $tag->name ) ) {

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$fields_count += 1;

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}

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if ( 1 < $fields_count ) {

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return true;

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}

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}

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}

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}

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return false;

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}

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/**

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* Detects errors of unavailable form-tag names.

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* @link https://contactform7.com/configuration-errors/unavailable-names/

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public function detect_unavailable_names( $section, $content ) {

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$public_query_vars = array( 'm', 'p', 'posts', 'w', 'cat',

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'withcomments', 'withoutcomments', 's', 'search', 'exact', 'sentence',

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'calendar', 'page', 'paged', 'more', 'tb', 'pb', 'author', 'order',

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'orderby', 'year', 'monthnum', 'day', 'hour', 'minute', 'second',

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'name', 'category_name', 'tag', 'feed', 'author_name', 'static',

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'pagename', 'page_id', 'error', 'attachment', 'attachment_id',

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'subpost', 'subpost_id', 'preview', 'robots', 'taxonomy', 'term',

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'cpage', 'post_type', 'embed',

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);

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$form_tags_manager = WPCF7_FormTagsManager::get_instance();

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$ng_named_tags = $form_tags_manager->filter( $content, array(

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'name' => $public_query_vars,

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) );

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$ng_names = array();

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foreach ( $ng_named_tags as $tag ) {

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$ng_names[] = sprintf( '"%s"', $tag->name );

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}

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if ( $ng_names ) {

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return array_unique( $ng_names );

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}

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return false;

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}

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/**

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* Detects errors of unavailable HTML elements.

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* @link https://contactform7.com/configuration-errors/unavailable-html-elements/

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public function detect_unavailable_html_elements( $section, $content ) {

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$pattern = '%(?:<form[\s\t>]|</form>)%i';

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if ( preg_match( $pattern, $content ) ) {

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return true;

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}

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return false;

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}

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/**

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* Detects errors of dots in form-tag names.

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* @link https://contactform7.com/configuration-errors/dots-in-names/

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public function detect_dots_in_names( $section, $content ) {

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$form_tags_manager = WPCF7_FormTagsManager::get_instance();

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$tags = $form_tags_manager->filter( $content, array(

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'feature' => 'name-attr',

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) );

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foreach ( $tags as $tag ) {

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if ( str_contains( $tag->raw_name, '.' ) ) {

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return true;

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}

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}

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return false;

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}

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/**

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* Detects errors of colons in form-tag names.

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* @link https://contactform7.com/configuration-errors/colons-in-names/

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public function detect_colons_in_names( $section, $content ) {

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$form_tags_manager = WPCF7_FormTagsManager::get_instance();

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$tags = $form_tags_manager->filter( $content, array(

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'feature' => 'name-attr',

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) );

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foreach ( $tags as $tag ) {

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if ( str_contains( $tag->raw_name, ':' ) ) {

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return true;

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}

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}

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return false;

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}

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/**

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* Detects errors of uploadable file size overlimit.

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* @link https://contactform7.com/configuration-errors/upload-filesize-overlimit

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public function detect_upload_filesize_overlimit( $section, $content ) {

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$upload_max_filesize = ini_get( 'upload_max_filesize' );

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if ( ! $upload_max_filesize ) {

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return false;

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}

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$upload_max_filesize = strtolower( $upload_max_filesize );

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$upload_max_filesize = trim( $upload_max_filesize );

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if ( ! preg_match( '/^(\d+)([kmg]?)$/', $upload_max_filesize, $matches ) ) {

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return false;

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}

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if ( 'k' === $matches[2] ) {

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$upload_max_filesize = (int) $matches[1] * KB_IN_BYTES;

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} elseif ( 'm' === $matches[2] ) {

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$upload_max_filesize = (int) $matches[1] * MB_IN_BYTES;

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} elseif ( 'g' === $matches[2] ) {

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$upload_max_filesize = (int) $matches[1] * GB_IN_BYTES;

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} else {

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$upload_max_filesize = (int) $matches[1];

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}

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$form_tags_manager = WPCF7_FormTagsManager::get_instance();

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$tags = $form_tags_manager->filter( $content, array(

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'basetype' => 'file',

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) );

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foreach ( $tags as $tag ) {

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if ( $upload_max_filesize < $tag->get_limit_option() ) {

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return true;

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}

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}

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return false;

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}

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}

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