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<?php trait WPCF7_ConfigValidator_Form { /** * Runs error detection for the form section. */ public function validate_form() { $section = 'form.body'; $form = $this->contact_form->prop( 'form' ); if ( $this->supports( 'multiple_controls_in_label' ) ) { if ( $this->detect_multiple_controls_in_label( $section, $form ) ) { $this->add_error( $section, 'multiple_controls_in_label', array( 'message' => __( "Multiple form controls are in a single label element.", 'contact-form-7' ), ) ); } else { $this->remove_error( $section, 'multiple_controls_in_label' ); } } if ( $this->supports( 'unavailable_names' ) ) { $ng_names = $this->detect_unavailable_names( $section, $form ); if ( $ng_names ) { $this->add_error( $section, 'unavailable_names', array( 'message' => /* translators: %names%: a list of form control names */ __( "Unavailable names (%names%) are used for form controls.", 'contact-form-7' ), 'params' => array( 'names' => implode( ', ', $ng_names ) ), ) ); } else { $this->remove_error( $section, 'unavailable_names' ); } } if ( $this->supports( 'unavailable_html_elements' ) ) { if ( $this->detect_unavailable_html_elements( $section, $form ) ) { $this->add_error( $section, 'unavailable_html_elements', array( 'message' => __( "Unavailable HTML elements are used in the form template.", 'contact-form-7' ), ) ); } else { $this->remove_error( $section, 'unavailable_html_elements' ); } } if ( $this->supports( 'dots_in_names' ) ) { if ( $this->detect_dots_in_names( $section, $form ) ) { $this->add_error( $section, 'dots_in_names', array( 'message' => __( "Dots are used in form-tag names.", 'contact-form-7' ), ) ); } else { $this->remove_error( $section, 'dots_in_names' ); } } if ( $this->supports( 'colons_in_names' ) ) { if ( $this->detect_colons_in_names( $section, $form ) ) { $this->add_error( $section, 'colons_in_names', array( 'message' => __( "Colons are used in form-tag names.", 'contact-form-7' ), ) ); } else { $this->remove_error( $section, 'colons_in_names' ); } } if ( $this->supports( 'upload_filesize_overlimit' ) ) { if ( $this->detect_upload_filesize_overlimit( $section, $form ) ) { $this->add_error( $section, 'upload_filesize_overlimit', array( 'message' => __( "Uploadable file size exceeds PHP’s maximum acceptable size.", 'contact-form-7' ), ) ); } else { $this->remove_error( $section, 'upload_filesize_overlimit' ); } } } /** * Detects errors of multiple form controls in a single label. * * @link https://contactform7.com/configuration-errors/multiple-controls-in-label/ */ public function detect_multiple_controls_in_label( $section, $content ) { $pattern = '%<label(?:[ \t\n]+.*?)?>(.+?)</label>%s'; if ( preg_match_all( $pattern, $content, $matches ) ) { $form_tags_manager = WPCF7_FormTagsManager::get_instance(); foreach ( $matches[1] as $insidelabel ) { $tags = $form_tags_manager->scan( $insidelabel ); $fields_count = 0; foreach ( $tags as $tag ) { $is_multiple_controls_container = wpcf7_form_tag_supports( $tag->type, 'multiple-controls-container' ); $is_zero_controls_container = wpcf7_form_tag_supports( $tag->type, 'zero-controls-container' ); if ( $is_multiple_controls_container ) { $fields_count += count( $tag->values ); if ( $tag->has_option( 'free_text' ) ) { $fields_count += 1; } } elseif ( $is_zero_controls_container ) { $fields_count += 0; } elseif ( ! empty( $tag->name ) ) { $fields_count += 1; } if ( 1 < $fields_count ) { return true; } } } } return false; } /** * Detects errors of unavailable form-tag names. * * @link https://contactform7.com/configuration-errors/unavailable-names/ */ public function detect_unavailable_names( $section, $content ) { $public_query_vars = array( 'm', 'p', 'posts', 'w', 'cat', 'withcomments', 'withoutcomments', 's', 'search', 'exact', 'sentence', 'calendar', 'page', 'paged', 'more', 'tb', 'pb', 'author', 'order', 'orderby', 'year', 'monthnum', 'day', 'hour', 'minute', 'second', 'name', 'category_name', 'tag', 'feed', 'author_name', 'static', 'pagename', 'page_id', 'error', 'attachment', 'attachment_id', 'subpost', 'subpost_id', 'preview', 'robots', 'taxonomy', 'term', 'cpage', 'post_type', 'embed', ); $form_tags_manager = WPCF7_FormTagsManager::get_instance(); $ng_named_tags = $form_tags_manager->filter( $content, array( 'name' => $public_query_vars, ) ); $ng_names = array(); foreach ( $ng_named_tags as $tag ) { $ng_names[] = sprintf( '"%s"', $tag->name ); } if ( $ng_names ) { return array_unique( $ng_names ); } return false; } /** * Detects errors of unavailable HTML elements. * * @link https://contactform7.com/configuration-errors/unavailable-html-elements/ */ public function detect_unavailable_html_elements( $section, $content ) { $pattern = '%(?:<form[\s\t>]|</form>)%i'; if ( preg_match( $pattern, $content ) ) { return true; } return false; } /** * Detects errors of dots in form-tag names. * * @link https://contactform7.com/configuration-errors/dots-in-names/ */ public function detect_dots_in_names( $section, $content ) { $form_tags_manager = WPCF7_FormTagsManager::get_instance(); $tags = $form_tags_manager->filter( $content, array( 'feature' => 'name-attr', ) ); foreach ( $tags as $tag ) { if ( str_contains( $tag->raw_name, '.' ) ) { return true; } } return false; } /** * Detects errors of colons in form-tag names. * * @link https://contactform7.com/configuration-errors/colons-in-names/ */ public function detect_colons_in_names( $section, $content ) { $form_tags_manager = WPCF7_FormTagsManager::get_instance(); $tags = $form_tags_manager->filter( $content, array( 'feature' => 'name-attr', ) ); foreach ( $tags as $tag ) { if ( str_contains( $tag->raw_name, ':' ) ) { return true; } } return false; } /** * Detects errors of uploadable file size overlimit. * * @link https://contactform7.com/configuration-errors/upload-filesize-overlimit */ public function detect_upload_filesize_overlimit( $section, $content ) { $upload_max_filesize = ini_get( 'upload_max_filesize' ); if ( ! $upload_max_filesize ) { return false; } $upload_max_filesize = strtolower( $upload_max_filesize ); $upload_max_filesize = trim( $upload_max_filesize ); if ( ! preg_match( '/^(\d+)([kmg]?)$/', $upload_max_filesize, $matches ) ) { return false; } if ( 'k' === $matches[2] ) { $upload_max_filesize = (int) $matches[1] * KB_IN_BYTES; } elseif ( 'm' === $matches[2] ) { $upload_max_filesize = (int) $matches[1] * MB_IN_BYTES; } elseif ( 'g' === $matches[2] ) { $upload_max_filesize = (int) $matches[1] * GB_IN_BYTES; } else { $upload_max_filesize = (int) $matches[1]; } $form_tags_manager = WPCF7_FormTagsManager::get_instance(); $tags = $form_tags_manager->filter( $content, array( 'basetype' => 'file', ) ); foreach ( $tags as $tag ) { if ( $upload_max_filesize < $tag->get_limit_option() ) { return true; } } return false; } }
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