| 1 | <?php
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| 2 | /**
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| 3 | ** A base module for [quiz]
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| 4 | **/
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| 5 |
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| 6 | /* Shortcode handler */
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| 7 |
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| 8 | function wpcf7_quiz_shortcode_handler( $tag ) {
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| 9 | global $wpcf7_contact_form;
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| 10 |
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| 11 | if ( ! is_array( $tag ) )
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| 12 | return '';
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| 13 |
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| 14 | $type = $tag['type'];
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| 15 | $name = $tag['name'];
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| 16 | $options = (array) $tag['options'];
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| 17 | $pipes = $tag['pipes'];
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| 18 |
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| 19 | if ( empty( $name ) )
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| 20 | return '';
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| 21 |
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| 22 | $atts = '';
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| 23 | $id_att = '';
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| 24 | $class_att = '';
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| 25 | $size_att = '';
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| 26 | $maxlength_att = '';
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| 27 |
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| 28 | foreach ( $options as $option ) {
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| 29 | if ( preg_match( '%^id:([-0-9a-zA-Z_]+)$%', $option, $matches ) ) {
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| 30 | $id_att = $matches[1];
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| 31 |
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| 32 | } elseif ( preg_match( '%^class:([-0-9a-zA-Z_]+)$%', $option, $matches ) ) {
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| 33 | $class_att .= ' ' . $matches[1];
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| 34 |
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| 35 | } elseif ( preg_match( '%^([0-9]*)[/x]([0-9]*)$%', $option, $matches ) ) {
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| 36 | $size_att = (int) $matches[1];
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| 37 | $maxlength_att = (int) $matches[2];
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| 38 | }
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| 39 | }
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| 40 |
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| 41 | if ( $id_att )
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| 42 | $atts .= ' id="' . trim( $id_att ) . '"';
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| 43 |
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| 44 | if ( $class_att )
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| 45 | $atts .= ' class="' . trim( $class_att ) . '"';
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| 46 |
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| 47 | if ( $size_att )
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| 48 | $atts .= ' size="' . $size_att . '"';
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| 49 | else
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| 50 | $atts .= ' size="40"'; // default size
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| 51 |
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| 52 | if ( $maxlength_att )
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| 53 | $atts .= ' maxlength="' . $maxlength_att . '"';
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| 54 |
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| 55 | if ( is_a( $pipes, 'WPCF7_Pipes' ) && ! $pipes->zero() ) {
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| 56 | $pipe = $pipes->random_pipe();
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| 57 | $question = $pipe->before;
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| 58 | $answer = $pipe->after;
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| 59 | } else {
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| 60 | // default quiz
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| 61 | $question = '1+1=?';
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| 62 | $answer = '2';
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| 63 | }
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| 64 |
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| 65 | $answer = wpcf7_canonicalize( $answer );
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| 66 |
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| 67 | $html = '<span class="wpcf7-quiz-label">' . esc_html( $question ) . '</span> ';
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| 68 | $html .= '<input type="text" name="' . $name . '"' . $atts . ' />';
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| 69 | $html .= '<input type="hidden" name="_wpcf7_quiz_answer_' . $name . '" value="' . wp_hash( $answer, 'wpcf7_quiz' ) . '" />';
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| 70 |
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| 71 | $validation_error = '';
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| 72 | if ( is_a( $wpcf7_contact_form, 'WPCF7_ContactForm' ) )
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| 73 | $validation_error = $wpcf7_contact_form->validation_error( $name );
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| 74 |
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| 75 | $html = '<span class="wpcf7-form-control-wrap ' . $name . '">' . $html . $validation_error . '</span>';
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| 76 |
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| 77 | return $html;
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| 78 | }
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| 79 |
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| 80 | wpcf7_add_shortcode( 'quiz', 'wpcf7_quiz_shortcode_handler', true );
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| 81 |
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| 82 |
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| 83 | /* Validation filter */
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| 84 |
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| 85 | function wpcf7_quiz_validation_filter( $result, $tag ) {
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| 86 | global $wpcf7_contact_form;
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| 87 |
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| 88 | $type = $tag['type'];
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| 89 | $name = $tag['name'];
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| 90 |
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| 91 | $answer = wpcf7_canonicalize( $_POST[$name] );
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| 92 | $answer_hash = wp_hash( $answer, 'wpcf7_quiz' );
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| 93 | $expected_hash = $_POST['_wpcf7_quiz_answer_' . $name];
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| 94 | if ( $answer_hash != $expected_hash ) {
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| 95 | $result['valid'] = false;
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| 96 | $result['reason'][$name] = $wpcf7_contact_form->message( 'quiz_answer_not_correct' );
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| 97 | }
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| 98 |
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| 99 | return $result;
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| 100 | }
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| 101 |
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| 102 | add_filter( 'wpcf7_validate_quiz', 'wpcf7_quiz_validation_filter', 10, 2 );
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| 103 |
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| 104 |
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| 105 | /* Ajax echo filter */
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| 106 |
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| 107 | function wpcf7_quiz_ajax_echo_filter( $items ) {
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| 108 | global $wpcf7_contact_form;
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| 109 |
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| 110 | if ( ! is_a( $wpcf7_contact_form, 'WPCF7_ContactForm' ) )
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| 111 | return $items;
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| 112 |
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| 113 | if ( ! is_array( $items ) )
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| 114 | return $items;
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| 115 |
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| 116 | $fes = $wpcf7_contact_form->form_scan_shortcode(
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| 117 | array( 'type' => 'quiz' ) );
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| 118 |
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| 119 | if ( empty( $fes ) )
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| 120 | return $items;
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| 121 |
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| 122 | $refill = array();
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| 123 |
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| 124 | foreach ( $fes as $fe ) {
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| 125 | $name = $fe['name'];
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| 126 | $pipes = $fe['pipes'];
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| 127 |
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| 128 | if ( empty( $name ) )
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| 129 | continue;
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| 130 |
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| 131 | if ( is_a( $pipes, 'WPCF7_Pipes' ) && ! $pipes->zero() ) {
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| 132 | $pipe = $pipes->random_pipe();
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| 133 | $question = $pipe->before;
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| 134 | $answer = $pipe->after;
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| 135 | } else {
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| 136 | // default quiz
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| 137 | $question = '1+1=?';
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| 138 | $answer = '2';
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| 139 | }
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| 140 |
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| 141 | $answer = wpcf7_canonicalize( $answer );
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| 142 |
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| 143 | $refill[$name] = array( $question, wp_hash( $answer, 'wpcf7_quiz' ) );
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| 144 | }
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| 145 |
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| 146 | if ( ! empty( $refill ) )
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| 147 | $items['quiz'] = $refill;
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| 148 |
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| 149 | return $items;
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| 150 | }
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| 151 |
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| 152 | add_filter( 'wpcf7_ajax_json_echo', 'wpcf7_quiz_ajax_echo_filter' );
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| 153 |
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| 154 | ?>
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