@Blog

<?php
/*
Plugin Name: LLMS URL Exporter (Fixed)
Description: 公開記事のURLをuploads/llms.txt に日付降順で出力します。管理画面のボタンで非同期（AJAX）実行。新規公開時は先頭に追記。
Version: 1.1
Author: taoka toshiaki
*/

if ( ! defined( 'ABSPATH' ) ) exit;

class LLMS_URL_Exporter {
    private $file;

    public function __construct() {
        $this->file = $_SERVER['DOCUMENT_ROOT'] . '/llms.txt';

        add_action( 'admin_menu', [ $this, 'add_admin_page' ] );
        add_action( 'admin_enqueue_scripts', [ $this, 'enqueue_admin_script' ] );

        // AJAX (管理画面からの呼び出し = ログインユーザー用)
        add_action( 'wp_ajax_llms_generate_urls', [ $this, 'generate_urls' ] );

        // 投稿が公開になったとき（状態遷移を監視）
        add_action( 'transition_post_status', [ $this, 'on_transition_post_status' ], 10, 3 );

        register_activation_hook( __FILE__, [ $this, 'create_file_on_activate' ] );
    }

    public function create_file_on_activate() {
        $dir = dirname( $this->file );
        if ( ! is_dir( $dir ) ) {
            wp_mkdir_p( $dir );
        }
        if ( ! file_exists( $this->file ) ) {
            @file_put_contents( $this->file, "" );
        }
    }

    public function add_admin_page() {
        add_menu_page(
            'LLMS URL Exporter',
            'LLMS Export',
            'manage_options',
            'llms-url-exporter',
            [ $this, 'admin_page_html' ]
        );
    }

    public function enqueue_admin_script( $hook ) {
        // 管理画面の当該ページだけに読み込む
        if ( $hook !== 'toplevel_page_llms-url-exporter' ) return;

        // jQuery は管理画面に既に存在
        wp_enqueue_script( 'llms-admin', plugins_url( 'llms-admin.js', __FILE__ ), [ 'jquery' ], '1.0', true );

        wp_localize_script( 'llms-admin', 'LLMS_Ajax', [
            'ajax_url' => admin_url( 'admin-ajax.php' ),
            'nonce'    => wp_create_nonce( 'llms_generate_urls_nonce' ),
        ] );

        // もし外部ファイルを用意しないなら、admin_page_html 内の inline script がフォールバックになります。
    }

    public function admin_page_html() {
        ?>
        <div class="wrap">
            <h1>LLMS URL Exporter</h1>
            <p>公開中の全投稿URLを <code>/llms.txt</code> に日付降順で書き出します。</p>
            <button id="llms-generate-btn" class="button button-primary">全記事URLを書き出す</button>
            <div id="llms-result" style="margin-top:12px;"></div>
        </div>
        <?php
        // フォールバック用のインラインスクリプト（もし外部 JS を作らない場合に有効）
        $nonce = wp_create_nonce( 'llms_generate_urls_nonce' );
        $ajax_url = admin_url( 'admin-ajax.php' );
        ?>
        <script type="text/javascript">
        jQuery(function($){
            $('#llms-generate-btn').on('click', function(){
                var $res = $('#llms-result');
                $res.text('処理中...');

                var data = {
                    action: 'llms_generate_urls',
                    _ajax_nonce: (typeof LLMS_Ajax !== 'undefined' ? LLMS_Ajax.nonce : '<?php echo esc_js( $nonce ); ?>')
                };
                var url = (typeof LLMS_Ajax !== 'undefined' ? LLMS_Ajax.ajax_url : '<?php echo esc_js( $ajax_url ); ?>');

                $.post(url, data, function(response){
                    if ( response && response.success ) {
                        $res.html( response.data.message );
                    } else if ( response && response.data && response.data.message ) {
                        $res.html('エラー: ' + response.data.message);
                    } else {
                        $res.html('不明なレスポンス: ' + JSON.stringify(response));
                    }
                }).fail(function(jqXHR, textStatus, errorThrown){
                    $res.html('AJAX エラー: ' + textStatus + ' ' + errorThrown + ' (status: ' + jqXHR.status + ')');
                });
            });
        });
        </script>
        <?php
    }

    // AJAX ハンドラ
    public function generate_urls() {
        // nonce と権限チェック
        check_ajax_referer( 'llms_generate_urls_nonce', '_ajax_nonce' );
        if ( ! current_user_can( 'manage_options' ) ) {
            wp_send_json_error( [ 'message' => '権限がありません。' ], 403 );
        }

        $args = [
            'post_type'      => 'post',
            'post_status'    => 'publish',
            'orderby'        => 'date',
            'order'          => 'DESC',
            'posts_per_page' => -1,
            'no_found_rows'  => true,
            'fields'         => 'ids',
        ];

        $posts = get_posts( $args );
        $urls = [];
        foreach ( $posts as $pid ) {
            $permalink = get_permalink( $pid );
            if ( $permalink ) $urls[] = $permalink.'?md=1';
        }

        $content = implode("\n", $urls);


        $written = @file_put_contents( $this->file, $content );
        if ( $written === false ) {
            $err = error_get_last();
            $msg = isset( $err['message'] ) ? $err['message'] : '不明な書き込みエラー';
            wp_send_json_error( [ 'message' => 'ファイル書き込みに失敗しました: ' . $msg ] );
        }

        wp_send_json_success( [ 'message' => 'llms.txt に ' . count( $urls ) . ' 件のURLを書き出しました。' ] );
    }

    // 公開判定：状態遷移で publish になったときに先頭へ追加
    public function on_transition_post_status( $new_status, $old_status, $post ) {
        if ( $post->post_type !== 'post' ) return;
        if ( $new_status === 'publish' && $old_status !== 'publish' ) {
            $url = get_permalink( $post->ID ).'?md=1';

            $current = '';
            if ( file_exists( $this->file ) ) {
                $current = file_get_contents( $this->file );
            }

            // 既存の同一URLがあれば削除して先頭へ
            $lines = array_filter( array_map( 'trim', explode("\n", $current ) ) );
            $lines = array_values( array_diff( $lines, [ $url ] ) );
            array_unshift( $lines, $url );

            $new_content = implode("\n", $lines);

            @file_put_contents( $this->file, $new_content );
        }
    }
}

new LLMS_URL_Exporter();

<?php
session_start();
$toke_byte = openssl_random_pseudo_bytes(16);
$csrf_token = bin2hex($toke_byte);
$_SESSION['csrf_token'] = $csrf_token;
?>
<!DOCTYPE html>
<html lang="ja">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/4.6.0/css/bootstrap.min.css">
    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.15.4/css/all.min.css">
    <style>
        .qiita_feed-list>li {
            /* font-weight: bold; */
            color: aliceblue;
        }

        .qiita_feed-list>li>a {
            color: aliceblue;
        }

        body {
            background-color: #60b111;
        }

        .shadow-lg {
            box-shadow: 0 1rem 3rem rgba(255, 255, 255, .195) !important;
        }
    </style>
    <title>Qiita-feed</title>
    <?php
    require $_SERVER['DOCUMENT_ROOT'] . "/header_script.php";
    ?>
</head>

<body>
    <input type="hidden" id="csrf_token" value="<?= $csrf_token ?>">
    <div class="container">
        <div class="row">
            <div class="col-12">
                <h1 class="text-light">Qiita-feed</h1>
            </div>
        </div>
    </div>
    <div class="container mt-2">
        <span id="view"></span>
        Copyright <?= date("Y") ?>  <a href="https://358tool.com">358tool.com</a>
    </div>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.16.1/umd/popper.min.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/4.6.0/js/bootstrap.min.js"></script>
    <script src="./js/main.js?<?= time() ?>"></script>
</body>

</html>

//qiita feed
["taoka-toshiaki","mpyw","suin"].forEach(id=>{
    let data = {
        csrf_token:document.getElementById("csrf_token").value,
        feedid:[id]
    };
    let url = "./qiita-feed.php";
    qiita_feed(url,data);
});

async function qiita_feed(url, data) {
    const options = {
        method: 'POST',
        headers: {
            'Content-Type': 'application/json',
            'Accept': 'application/json'
        },
        body: JSON.stringify(data)
    }
    await fetch(url, options).then(response =>
        response.json()
    ).then(resultdata => {
        document.getElementById("view").insertAdjacentHTML("beforeend",resultdata.reshtmlcode)
    }
    ).catch(error => {
        console.log(error);
    }
    );
}

<?php
session_start();
$obj = json_decode(strip_tags(@file_get_contents("php://input")));

if (isset($obj)) {

    if (isset($obj->csrf_token)  && $_SESSION["csrf_token"] === $obj->csrf_token) {
        $str ="";
        foreach ($obj->feedid as $key => $id) {
            $str.= '
        <div class="row shadow-lg p-3 mb-5 bg-body rounded">
            <div class="col-12">
            🌿<span class="text-light">://qiita.com/' . xss_d($id) . '/feed :[引用]</span>';
            $str .= get_Qiitafeed("https://qiita.com/" . xss_d($id) . "/feed");
            $str .= '
             </div>
        </div>      ';
        }
        $res["reshtmlcode"] = $str;
        print json_encode($res);
    }
}


function xss_d(mixed $val): mixed
{
    if (is_array($val)) {
        foreach ($val as $key => $value) {
            $val[$key] = htmlentities($value, ENT_QUOTES);
        }
    } else {
        $val = htmlentities($val, ENT_QUOTES);
    }
    return $val;
}

function get_Qiitafeed(string $feedUrl): string
{
    $xml = @simplexml_load_file($feedUrl);
    if (isset($xml->entry)) {
        $str = "<ul class='qiita_feed-list'>";
        foreach ($xml->entry as $key => $val) {
            $str .= "<li><a href='{$val->url}'>" . $val->title . "</a></li>";
        }
        $str .= "</ul>";
    }
    return $str;
}