62 lines
1.3 KiB
PHP
62 lines
1.3 KiB
PHP
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<?php
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namespace Contactable\SWV;
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class FileRule extends Rule {
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const rule_name = 'file';
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public function matches( $context ) {
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if ( false === parent::matches( $context ) ) {
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return false;
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}
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if ( empty( $context['file'] ) ) {
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return false;
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}
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return true;
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}
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public function validate( $context ) {
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$field = $this->get_property( 'field' );
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$input = $_FILES[$field]['name'] ?? '';
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$input = wpcf7_array_flatten( $input );
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$input = wpcf7_exclude_blank( $input );
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$acceptable_filetypes = array();
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foreach ( (array) $this->get_property( 'accept' ) as $accept ) {
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if ( preg_match( '/^\.[a-z0-9]+$/i', $accept ) ) {
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$acceptable_filetypes[] = strtolower( $accept );
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} else {
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foreach ( wpcf7_convert_mime_to_ext( $accept ) as $ext ) {
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$acceptable_filetypes[] = sprintf(
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'.%s',
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strtolower( trim( $ext, ' .' ) )
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);
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}
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}
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}
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$acceptable_filetypes = array_unique( $acceptable_filetypes );
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foreach ( $input as $i ) {
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$last_period_pos = strrpos( $i, '.' );
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if ( false === $last_period_pos ) { // no period
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return $this->create_error();
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}
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$suffix = strtolower( substr( $i, $last_period_pos ) );
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if ( ! in_array( $suffix, $acceptable_filetypes, true ) ) {
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return $this->create_error();
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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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