91 lines
1.8 KiB
PHP
91 lines
1.8 KiB
PHP
<?php
|
|
|
|
add_filter( 'wpcf7_spam', 'wpcf7_disallowed_list', 10, 2 );
|
|
|
|
function wpcf7_disallowed_list( $spam, $submission ) {
|
|
if ( $spam ) {
|
|
return $spam;
|
|
}
|
|
|
|
$target = wpcf7_array_flatten( $submission->get_posted_data() );
|
|
$target[] = $submission->get_meta( 'remote_ip' );
|
|
$target[] = $submission->get_meta( 'user_agent' );
|
|
$target = implode( "\n", $target );
|
|
|
|
$word = wpcf7_check_disallowed_list( $target );
|
|
|
|
$word = wpcf7_apply_filters_deprecated(
|
|
'wpcf7_submission_is_blacklisted',
|
|
array( $word, $submission ),
|
|
'5.3',
|
|
'wpcf7_submission_has_disallowed_words'
|
|
);
|
|
|
|
$word = apply_filters(
|
|
'wpcf7_submission_has_disallowed_words',
|
|
$word,
|
|
$submission
|
|
);
|
|
|
|
if ( $word ) {
|
|
if ( is_bool( $word ) ) {
|
|
$reason = __( "Disallowed words are used.", 'contact-form-7' );
|
|
} else {
|
|
$reason = sprintf(
|
|
__( "Disallowed words (%s) are used.", 'contact-form-7' ),
|
|
implode( ', ', (array) $word )
|
|
);
|
|
}
|
|
|
|
$submission->add_spam_log( array(
|
|
'agent' => 'disallowed_list',
|
|
'reason' => $reason,
|
|
) );
|
|
}
|
|
|
|
$spam = (bool) $word;
|
|
|
|
return $spam;
|
|
}
|
|
|
|
function wpcf7_check_disallowed_list( $target ) {
|
|
$mod_keys = get_option( 'disallowed_keys' );
|
|
|
|
if ( is_scalar( $mod_keys ) ) {
|
|
$mod_keys = trim( $mod_keys );
|
|
} else {
|
|
$mod_keys = '';
|
|
}
|
|
|
|
if ( '' === $mod_keys ) {
|
|
return false;
|
|
}
|
|
|
|
foreach ( explode( "\n", $mod_keys ) as $word ) {
|
|
$word = trim( $word );
|
|
$length = strlen( $word );
|
|
|
|
if ( $length < 2 or 256 < $length ) {
|
|
continue;
|
|
}
|
|
|
|
$pattern = sprintf( '#%s#i', preg_quote( $word, '#' ) );
|
|
|
|
if ( preg_match( $pattern, $target ) ) {
|
|
return $word;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
function wpcf7_blacklist_check( $target ) {
|
|
wpcf7_deprecated_function(
|
|
__FUNCTION__,
|
|
'5.3',
|
|
'wpcf7_check_disallowed_list'
|
|
);
|
|
|
|
return wpcf7_check_disallowed_list( $target );
|
|
}
|