704 lines
17 KiB
PHP
704 lines
17 KiB
PHP
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<?php
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/**
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** A base module for [captchac] and [captchar]
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**/
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/* form_tag handler */
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add_action( 'wpcf7_init', 'wpcf7_add_form_tag_captcha', 10, 0 );
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function wpcf7_add_form_tag_captcha() {
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// CAPTCHA-Challenge (image)
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wpcf7_add_form_tag( 'captchac',
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'wpcf7_captchac_form_tag_handler',
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array(
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'name-attr' => true,
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'zero-controls-container' => true,
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'not-for-mail' => true,
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)
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);
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// CAPTCHA-Response (input)
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wpcf7_add_form_tag( 'captchar',
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'wpcf7_captchar_form_tag_handler',
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array(
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'name-attr' => true,
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'do-not-store' => true,
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'not-for-mail' => true,
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)
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);
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}
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function wpcf7_captchac_form_tag_handler( $tag ) {
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if ( ! class_exists( 'ReallySimpleCaptcha' ) ) {
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$error = sprintf(
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/* translators: %s: link labeled 'Really Simple CAPTCHA' */
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esc_html( __( "To use CAPTCHA, you need %s plugin installed.", 'contact-form-7' ) ),
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wpcf7_link( 'https://wordpress.org/plugins/really-simple-captcha/', 'Really Simple CAPTCHA' )
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);
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return sprintf( '<em>%s</em>', $error );
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}
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if ( empty( $tag->name ) ) {
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return '';
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}
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$class = wpcf7_form_controls_class( $tag->type );
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$class .= ' wpcf7-captcha-' . str_replace( ':', '', $tag->name );
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$atts = array();
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$atts['class'] = $tag->get_class_option( $class );
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$atts['id'] = $tag->get_id_option();
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$op = array( // Default
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'img_size' => array( 72, 24 ),
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'base' => array( 6, 18 ),
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'font_size' => 14,
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'font_char_width' => 15,
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);
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$op = array_merge( $op, wpcf7_captchac_options( $tag->options ) );
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if ( ! $filename = wpcf7_generate_captcha( $op ) ) {
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return '';
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}
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if ( ! empty( $op['img_size'] ) ) {
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if ( isset( $op['img_size'][0] ) ) {
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$atts['width'] = $op['img_size'][0];
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}
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if ( isset( $op['img_size'][1] ) ) {
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$atts['height'] = $op['img_size'][1];
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}
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}
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$atts['alt'] = 'captcha';
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$atts['src'] = wpcf7_captcha_url( $filename );
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$atts = wpcf7_format_atts( $atts );
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$prefix = substr( $filename, 0, strrpos( $filename, '.' ) );
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$html = sprintf(
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'<input type="hidden" name="%1$s" value="%2$s" /><img %3$s />',
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esc_attr( sprintf( '_wpcf7_captcha_challenge_%s', $tag->name ) ),
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esc_attr( $prefix ),
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$atts
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);
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return $html;
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}
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function wpcf7_captchar_form_tag_handler( $tag ) {
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if ( empty( $tag->name ) ) {
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return '';
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}
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$validation_error = wpcf7_get_validation_error( $tag->name );
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$class = wpcf7_form_controls_class( $tag->type );
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if ( $validation_error ) {
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$class .= ' wpcf7-not-valid';
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}
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$atts = array();
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$atts['size'] = $tag->get_size_option( '40' );
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$atts['maxlength'] = $tag->get_maxlength_option();
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$atts['minlength'] = $tag->get_minlength_option();
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if ( $atts['maxlength'] and $atts['minlength']
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and $atts['maxlength'] < $atts['minlength'] ) {
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unset( $atts['maxlength'], $atts['minlength'] );
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}
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$atts['class'] = $tag->get_class_option( $class );
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$atts['id'] = $tag->get_id_option();
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$atts['tabindex'] = $tag->get_option( 'tabindex', 'signed_int', true );
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$atts['autocomplete'] = 'off';
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if ( $validation_error ) {
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$atts['aria-invalid'] = 'true';
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$atts['aria-describedby'] = wpcf7_get_validation_error_reference(
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$tag->name
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);
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} else {
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$atts['aria-invalid'] = 'false';
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}
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$value = (string) reset( $tag->values );
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if ( wpcf7_is_posted() ) {
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$value = '';
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}
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if ( $tag->has_option( 'placeholder' )
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or $tag->has_option( 'watermark' ) ) {
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$atts['placeholder'] = $value;
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$value = '';
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}
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$atts['value'] = $value;
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$atts['type'] = 'text';
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$atts['name'] = $tag->name;
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$html = sprintf(
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'<span class="wpcf7-form-control-wrap" data-name="%1$s"><input %2$s />%3$s</span>',
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esc_attr( $tag->name ),
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wpcf7_format_atts( $atts ),
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$validation_error
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);
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return $html;
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}
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/* Validation filter */
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add_filter( 'wpcf7_validate_captchar',
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'wpcf7_captcha_validation_filter', 10, 2 );
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function wpcf7_captcha_validation_filter( $result, $tag ) {
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$type = $tag->type;
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$name = $tag->name;
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$captchac = '_wpcf7_captcha_challenge_' . $name;
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$prefix = (string) ( $_POST[$captchac] ?? '' );
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$response = (string) ( $_POST[$name] ?? '' );
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$response = wpcf7_canonicalize( $response );
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if ( 0 === strlen( $prefix )
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or ! wpcf7_check_captcha( $prefix, $response ) ) {
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$result->invalidate( $tag, wpcf7_get_message( 'captcha_not_match' ) );
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}
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if ( 0 !== strlen( $prefix ) ) {
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wpcf7_remove_captcha( $prefix );
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}
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return $result;
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}
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/* Ajax echo filter */
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add_filter( 'wpcf7_refill_response', 'wpcf7_captcha_ajax_refill', 10, 1 );
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add_filter( 'wpcf7_feedback_response', 'wpcf7_captcha_ajax_refill', 10, 1 );
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function wpcf7_captcha_ajax_refill( $items ) {
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if ( ! is_array( $items ) ) {
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return $items;
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}
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$tags = wpcf7_scan_form_tags( array( 'type' => 'captchac' ) );
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if ( empty( $tags ) ) {
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return $items;
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}
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$refill = array();
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foreach ( $tags as $tag ) {
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$name = $tag->name;
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$options = $tag->options;
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if ( empty( $name ) ) {
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continue;
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}
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$op = wpcf7_captchac_options( $options );
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if ( $filename = wpcf7_generate_captcha( $op ) ) {
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$captcha_url = wpcf7_captcha_url( $filename );
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$refill[$name] = $captcha_url;
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}
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}
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if ( ! empty( $refill ) ) {
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$items['captcha'] = $refill;
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}
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return $items;
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}
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/* Messages */
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add_filter( 'wpcf7_messages', 'wpcf7_captcha_messages', 10, 1 );
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function wpcf7_captcha_messages( $messages ) {
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$messages = array_merge( $messages, array(
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'captcha_not_match' => array(
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'description' =>
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__( "The code that sender entered does not match the CAPTCHA", 'contact-form-7' ),
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'default' =>
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__( 'Your entered code is incorrect.', 'contact-form-7' ),
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),
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) );
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return $messages;
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}
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/* Tag generator */
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add_action( 'wpcf7_admin_init', 'wpcf7_add_tag_generator_captcha', 46, 0 );
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function wpcf7_add_tag_generator_captcha() {
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if ( ! wpcf7_use_really_simple_captcha() ) {
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return;
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}
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$tag_generator = WPCF7_TagGenerator::get_instance();
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$tag_generator->add( 'captcha',
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__( 'CAPTCHA (Really Simple CAPTCHA)', 'contact-form-7' ),
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'wpcf7_tag_generator_captcha' );
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}
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function wpcf7_tag_generator_captcha( $contact_form, $args = '' ) {
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$args = wp_parse_args( $args, array() );
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if ( ! class_exists( 'ReallySimpleCaptcha' ) ) {
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?>
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<div class="control-box">
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<fieldset>
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<legend><?php
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echo sprintf(
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/* translators: %s: link labeled 'Really Simple CAPTCHA' */
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esc_html( __( "To use CAPTCHA, you first need to install and activate %s plugin.", 'contact-form-7' ) ),
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wpcf7_link( 'https://wordpress.org/plugins/really-simple-captcha/', 'Really Simple CAPTCHA' )
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);
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?></legend>
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</fieldset>
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</div>
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<?php
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return;
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}
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$description = __( "Generate form-tags for a CAPTCHA image and corresponding response input field. For more details, see %s.", 'contact-form-7' );
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$desc_link = wpcf7_link( __( 'https://contactform7.com/captcha/', 'contact-form-7' ), __( 'CAPTCHA', 'contact-form-7' ) );
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?>
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<div class="control-box">
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<fieldset>
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<legend><?php echo sprintf( esc_html( $description ), $desc_link ); ?></legend>
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<table class="form-table">
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<tbody>
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<tr>
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<th scope="row"><label for="<?php echo esc_attr( $args['content'] . '-name' ); ?>"><?php echo esc_html( __( 'Name', 'contact-form-7' ) ); ?></label></th>
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<td><input type="text" name="name" class="tg-name oneline" id="<?php echo esc_attr( $args['content'] . '-name' ); ?>" /></td>
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</tr>
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</tbody>
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</table>
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<table class="form-table scope captchac">
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<caption><?php echo esc_html( __( "Image settings", 'contact-form-7' ) ); ?></caption>
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<tbody>
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<tr>
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<th scope="row"><label for="<?php echo esc_attr( $args['content'] . '-captchac-id' ); ?>"><?php echo esc_html( __( 'Id attribute', 'contact-form-7' ) ); ?></label></th>
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<td><input type="text" name="id" class="idvalue oneline option" id="<?php echo esc_attr( $args['content'] . '-captchac-id' ); ?>" /></td>
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</tr>
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<tr>
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<th scope="row"><label for="<?php echo esc_attr( $args['content'] . '-captchac-class' ); ?>"><?php echo esc_html( __( 'Class attribute', 'contact-form-7' ) ); ?></label></th>
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<td><input type="text" name="class" class="classvalue oneline option" id="<?php echo esc_attr( $args['content'] . '-captchac-class' ); ?>" /></td>
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</tr>
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</tbody>
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</table>
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<table class="form-table scope captchar">
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<caption><?php echo esc_html( __( "Input field settings", 'contact-form-7' ) ); ?></caption>
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<tbody>
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<tr>
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<th scope="row"><label for="<?php echo esc_attr( $args['content'] . '-captchar-id' ); ?>"><?php echo esc_html( __( 'Id attribute', 'contact-form-7' ) ); ?></label></th>
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<td><input type="text" name="id" class="idvalue oneline option" id="<?php echo esc_attr( $args['content'] . '-captchar-id' ); ?>" /></td>
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</tr>
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<tr>
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<th scope="row"><label for="<?php echo esc_attr( $args['content'] . '-captchar-class' ); ?>"><?php echo esc_html( __( 'Class attribute', 'contact-form-7' ) ); ?></label></th>
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<td><input type="text" name="class" class="classvalue oneline option" id="<?php echo esc_attr( $args['content'] . '-captchar-class' ); ?>" /></td>
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</tr>
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</tbody>
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</table>
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</fieldset>
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</div>
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<div class="insert-box">
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<input type="text" name="captcha" class="tag code" readonly="readonly" onfocus="this.select()" />
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<div class="submitbox">
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<input type="button" class="button button-primary insert-tag" value="<?php echo esc_attr( __( 'Insert Tag', 'contact-form-7' ) ); ?>" />
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</div>
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</div>
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<?php
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}
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/* Warning message */
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add_action( 'wpcf7_admin_warnings',
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'wpcf7_captcha_display_warning_message', 10, 3 );
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function wpcf7_captcha_display_warning_message( $page, $action, $object ) {
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if ( $object instanceof WPCF7_ContactForm ) {
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$contact_form = $object;
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} else {
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return;
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}
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$has_tags = (bool) $contact_form->scan_form_tags(
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array( 'type' => array( 'captchac' ) ) );
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if ( ! $has_tags ) {
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return;
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}
|
||
|
|
|
||
|
|
if ( ! class_exists( 'ReallySimpleCaptcha' ) ) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
$uploads_dir = wpcf7_captcha_tmp_dir();
|
||
|
|
wpcf7_init_captcha();
|
||
|
|
|
||
|
|
if ( ! is_dir( $uploads_dir )
|
||
|
|
or ! wp_is_writable( $uploads_dir ) ) {
|
||
|
|
$message = sprintf( __( 'This contact form contains CAPTCHA fields, but the temporary folder for the files (%s) does not exist or is not writable. You can create the folder or change its permission manually.', 'contact-form-7' ), $uploads_dir );
|
||
|
|
|
||
|
|
echo '<div class="notice notice-warning"><p>' . esc_html( $message ) . '</p></div>';
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( ! function_exists( 'imagecreatetruecolor' )
|
||
|
|
or ! function_exists( 'imagettftext' ) ) {
|
||
|
|
$message = __( "This contact form contains CAPTCHA fields, but the necessary libraries (GD and FreeType) are not available on your server.", 'contact-form-7' );
|
||
|
|
|
||
|
|
echo '<div class="notice notice-warning"><p>' . esc_html( $message ) . '</p></div>';
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/* CAPTCHA functions */
|
||
|
|
|
||
|
|
function wpcf7_init_captcha() {
|
||
|
|
static $captcha = null;
|
||
|
|
|
||
|
|
if ( $captcha ) {
|
||
|
|
return $captcha;
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( class_exists( 'ReallySimpleCaptcha' ) ) {
|
||
|
|
$captcha = new ReallySimpleCaptcha();
|
||
|
|
} else {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
$dir = trailingslashit( wpcf7_captcha_tmp_dir() );
|
||
|
|
|
||
|
|
$captcha->tmp_dir = $dir;
|
||
|
|
|
||
|
|
if ( is_callable( array( $captcha, 'make_tmp_dir' ) ) ) {
|
||
|
|
$result = $captcha->make_tmp_dir();
|
||
|
|
|
||
|
|
if ( ! $result ) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
return $captcha;
|
||
|
|
}
|
||
|
|
|
||
|
|
$result = wp_mkdir_p( $dir );
|
||
|
|
|
||
|
|
if ( ! $result ) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
$htaccess_file = path_join( $dir, '.htaccess' );
|
||
|
|
|
||
|
|
if ( file_exists( $htaccess_file ) ) {
|
||
|
|
list( $first_line_comment ) = (array) file(
|
||
|
|
$htaccess_file,
|
||
|
|
FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES
|
||
|
|
);
|
||
|
|
|
||
|
|
if ( '# Apache 2.4+' === $first_line_comment ) {
|
||
|
|
return $captcha;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( $handle = @fopen( $htaccess_file, 'w' ) ) {
|
||
|
|
fwrite( $handle, "# Apache 2.4+\n" );
|
||
|
|
fwrite( $handle, "<IfModule authz_core_module>\n" );
|
||
|
|
fwrite( $handle, " Require all denied\n" );
|
||
|
|
fwrite( $handle, ' <FilesMatch "^\w+\.(jpe?g|gif|png)$">' . "\n" );
|
||
|
|
fwrite( $handle, " Require all granted\n" );
|
||
|
|
fwrite( $handle, " </FilesMatch>\n" );
|
||
|
|
fwrite( $handle, "</IfModule>\n" );
|
||
|
|
fwrite( $handle, "\n" );
|
||
|
|
fwrite( $handle, "# Apache 2.2\n" );
|
||
|
|
fwrite( $handle, "<IfModule !authz_core_module>\n" );
|
||
|
|
fwrite( $handle, " Order deny,allow\n" );
|
||
|
|
fwrite( $handle, " Deny from all\n" );
|
||
|
|
fwrite( $handle, ' <FilesMatch "^\w+\.(jpe?g|gif|png)$">' . "\n" );
|
||
|
|
fwrite( $handle, " Allow from all\n" );
|
||
|
|
fwrite( $handle, " </FilesMatch>\n" );
|
||
|
|
fwrite( $handle, "</IfModule>\n" );
|
||
|
|
|
||
|
|
fclose( $handle );
|
||
|
|
}
|
||
|
|
|
||
|
|
return $captcha;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Returns the directory path for Really Simple CAPTCHA files.
|
||
|
|
*
|
||
|
|
* @return string Directory path.
|
||
|
|
*/
|
||
|
|
function wpcf7_captcha_tmp_dir() {
|
||
|
|
if ( defined( 'WPCF7_CAPTCHA_TMP_DIR' ) ) {
|
||
|
|
$dir = path_join( WP_CONTENT_DIR, WPCF7_CAPTCHA_TMP_DIR );
|
||
|
|
wp_mkdir_p( $dir );
|
||
|
|
|
||
|
|
if ( wpcf7_is_file_path_in_content_dir( $dir ) ) {
|
||
|
|
return $dir;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
$dir = path_join( wpcf7_upload_dir( 'dir' ), 'wpcf7_captcha' );
|
||
|
|
wp_mkdir_p( $dir );
|
||
|
|
return $dir;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
function wpcf7_captcha_tmp_url() {
|
||
|
|
if ( defined( 'WPCF7_CAPTCHA_TMP_URL' ) ) {
|
||
|
|
return WPCF7_CAPTCHA_TMP_URL;
|
||
|
|
} else {
|
||
|
|
return path_join( wpcf7_upload_dir( 'url' ), 'wpcf7_captcha' );
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
function wpcf7_captcha_url( $filename ) {
|
||
|
|
$url = path_join( wpcf7_captcha_tmp_url(), $filename );
|
||
|
|
|
||
|
|
if ( is_ssl()
|
||
|
|
and 'http:' == substr( $url, 0, 5 ) ) {
|
||
|
|
$url = 'https:' . substr( $url, 5 );
|
||
|
|
}
|
||
|
|
|
||
|
|
return apply_filters( 'wpcf7_captcha_url', sanitize_url( $url ) );
|
||
|
|
}
|
||
|
|
|
||
|
|
function wpcf7_generate_captcha( $options = null ) {
|
||
|
|
if ( ! $captcha = wpcf7_init_captcha() ) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( ! is_dir( $captcha->tmp_dir )
|
||
|
|
or ! wp_is_writable( $captcha->tmp_dir ) ) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
$img_type = imagetypes();
|
||
|
|
|
||
|
|
if ( $img_type & IMG_PNG ) {
|
||
|
|
$captcha->img_type = 'png';
|
||
|
|
} elseif ( $img_type & IMG_GIF ) {
|
||
|
|
$captcha->img_type = 'gif';
|
||
|
|
} elseif ( $img_type & IMG_JPG ) {
|
||
|
|
$captcha->img_type = 'jpeg';
|
||
|
|
} else {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( is_array( $options ) ) {
|
||
|
|
if ( isset( $options['img_size'] ) ) {
|
||
|
|
$captcha->img_size = $options['img_size'];
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( isset( $options['base'] ) ) {
|
||
|
|
$captcha->base = $options['base'];
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( isset( $options['font_size'] ) ) {
|
||
|
|
$captcha->font_size = $options['font_size'];
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( isset( $options['font_char_width'] ) ) {
|
||
|
|
$captcha->font_char_width = $options['font_char_width'];
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( isset( $options['fg'] ) ) {
|
||
|
|
$captcha->fg = $options['fg'];
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( isset( $options['bg'] ) ) {
|
||
|
|
$captcha->bg = $options['bg'];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
$prefix = wp_rand();
|
||
|
|
$captcha_word = $captcha->generate_random_word();
|
||
|
|
return $captcha->generate_image( $prefix, $captcha_word );
|
||
|
|
}
|
||
|
|
|
||
|
|
function wpcf7_check_captcha( $prefix, $response ) {
|
||
|
|
if ( ! $captcha = wpcf7_init_captcha() ) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
return $captcha->check( $prefix, $response );
|
||
|
|
}
|
||
|
|
|
||
|
|
function wpcf7_remove_captcha( $prefix ) {
|
||
|
|
if ( ! $captcha = wpcf7_init_captcha() ) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Contact Form 7 generates $prefix with wp_rand()
|
||
|
|
if ( preg_match( '/[^0-9]/', $prefix ) ) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
$captcha->remove( $prefix );
|
||
|
|
}
|
||
|
|
|
||
|
|
add_action( 'shutdown', 'wpcf7_cleanup_captcha_files', 20, 0 );
|
||
|
|
|
||
|
|
function wpcf7_cleanup_captcha_files() {
|
||
|
|
if ( ! $captcha = wpcf7_init_captcha() ) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( is_callable( array( $captcha, 'cleanup' ) ) ) {
|
||
|
|
return $captcha->cleanup();
|
||
|
|
}
|
||
|
|
|
||
|
|
$dir = trailingslashit( wpcf7_captcha_tmp_dir() );
|
||
|
|
|
||
|
|
if ( ! is_dir( $dir )
|
||
|
|
or ! is_readable( $dir )
|
||
|
|
or ! wp_is_writable( $dir ) ) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( $handle = opendir( $dir ) ) {
|
||
|
|
while ( false !== ( $file = readdir( $handle ) ) ) {
|
||
|
|
if ( ! preg_match( '/^[0-9]+\.(php|txt|png|gif|jpeg)$/', $file ) ) {
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
|
||
|
|
$stat = stat( path_join( $dir, $file ) );
|
||
|
|
|
||
|
|
if ( $stat['mtime'] + HOUR_IN_SECONDS < time() ) {
|
||
|
|
@unlink( path_join( $dir, $file ) );
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
closedir( $handle );
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
function wpcf7_captchac_options( $options ) {
|
||
|
|
if ( ! is_array( $options ) ) {
|
||
|
|
return array();
|
||
|
|
}
|
||
|
|
|
||
|
|
$op = array();
|
||
|
|
$image_size_array = preg_grep( '%^size:[smlSML]$%', $options );
|
||
|
|
|
||
|
|
if ( $image_size = array_shift( $image_size_array ) ) {
|
||
|
|
preg_match( '%^size:([smlSML])$%', $image_size, $is_matches );
|
||
|
|
|
||
|
|
switch ( strtolower( $is_matches[1] ) ) {
|
||
|
|
case 's':
|
||
|
|
$op['img_size'] = array( 60, 20 );
|
||
|
|
$op['base'] = array( 6, 15 );
|
||
|
|
$op['font_size'] = 11;
|
||
|
|
$op['font_char_width'] = 13;
|
||
|
|
break;
|
||
|
|
case 'l':
|
||
|
|
$op['img_size'] = array( 84, 28 );
|
||
|
|
$op['base'] = array( 6, 20 );
|
||
|
|
$op['font_size'] = 17;
|
||
|
|
$op['font_char_width'] = 19;
|
||
|
|
break;
|
||
|
|
case 'm':
|
||
|
|
default:
|
||
|
|
$op['img_size'] = array( 72, 24 );
|
||
|
|
$op['base'] = array( 6, 18 );
|
||
|
|
$op['font_size'] = 14;
|
||
|
|
$op['font_char_width'] = 15;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
$fg_color_array = preg_grep(
|
||
|
|
'%^fg:#([0-9a-fA-F]{3}|[0-9a-fA-F]{6})$%', $options );
|
||
|
|
|
||
|
|
if ( $fg_color = array_shift( $fg_color_array ) ) {
|
||
|
|
preg_match( '%^fg:#([0-9a-fA-F]{3}|[0-9a-fA-F]{6})$%',
|
||
|
|
$fg_color, $fc_matches );
|
||
|
|
|
||
|
|
if ( 3 == strlen( $fc_matches[1] ) ) {
|
||
|
|
$r = substr( $fc_matches[1], 0, 1 );
|
||
|
|
$g = substr( $fc_matches[1], 1, 1 );
|
||
|
|
$b = substr( $fc_matches[1], 2, 1 );
|
||
|
|
|
||
|
|
$op['fg'] = array(
|
||
|
|
hexdec( $r . $r ),
|
||
|
|
hexdec( $g . $g ),
|
||
|
|
hexdec( $b . $b ),
|
||
|
|
);
|
||
|
|
} elseif ( 6 == strlen( $fc_matches[1] ) ) {
|
||
|
|
$r = substr( $fc_matches[1], 0, 2 );
|
||
|
|
$g = substr( $fc_matches[1], 2, 2 );
|
||
|
|
$b = substr( $fc_matches[1], 4, 2 );
|
||
|
|
|
||
|
|
$op['fg'] = array(
|
||
|
|
hexdec( $r ),
|
||
|
|
hexdec( $g ),
|
||
|
|
hexdec( $b ),
|
||
|
|
);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
$bg_color_array = preg_grep(
|
||
|
|
'%^bg:#([0-9a-fA-F]{3}|[0-9a-fA-F]{6})$%', $options );
|
||
|
|
|
||
|
|
if ( $bg_color = array_shift( $bg_color_array ) ) {
|
||
|
|
preg_match( '%^bg:#([0-9a-fA-F]{3}|[0-9a-fA-F]{6})$%',
|
||
|
|
$bg_color, $bc_matches );
|
||
|
|
|
||
|
|
if ( 3 == strlen( $bc_matches[1] ) ) {
|
||
|
|
$r = substr( $bc_matches[1], 0, 1 );
|
||
|
|
$g = substr( $bc_matches[1], 1, 1 );
|
||
|
|
$b = substr( $bc_matches[1], 2, 1 );
|
||
|
|
|
||
|
|
$op['bg'] = array(
|
||
|
|
hexdec( $r . $r ),
|
||
|
|
hexdec( $g . $g ),
|
||
|
|
hexdec( $b . $b ),
|
||
|
|
);
|
||
|
|
} elseif ( 6 == strlen( $bc_matches[1] ) ) {
|
||
|
|
$r = substr( $bc_matches[1], 0, 2 );
|
||
|
|
$g = substr( $bc_matches[1], 2, 2 );
|
||
|
|
$b = substr( $bc_matches[1], 4, 2 );
|
||
|
|
|
||
|
|
$op['bg'] = array(
|
||
|
|
hexdec( $r ),
|
||
|
|
hexdec( $g ),
|
||
|
|
hexdec( $b ),
|
||
|
|
);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return $op;
|
||
|
|
}
|