inception/redis-cache/includes/ui/tabs/overview.php

<?php
/**
 * Overview tab template
 *
 * @package Rhubarb\RedisCache
 */

defined( '\\ABSPATH' ) || exit;

/** @var \Rhubarb\RedisCache\Plugin $roc */
$status = $roc->get_redis_status();
$redis_client = $roc->get_redis_client_name();
$redis_prefix = $roc->get_redis_prefix();
$redis_maxttl = $roc->get_redis_maxttl();
$redis_version = $roc->get_redis_version();
$redis_connection = $roc->check_redis_connection();
$filesystem_writable = $roc->test_filesystem_writing();

$diagnostics = $roc->get_diagnostics();

?>

<?php if ( is_string( $redis_connection ) ) : ?>
    <div class="notice notice-error">
        <p>
            <strong><?php esc_html_e( 'Redis is unreachable:', 'redis-cache' ); ?></strong>
            <?php echo esc_html( $redis_connection ); ?>
        </p>
    </div>
<?php endif; ?>

<table class="form-table" style="margin-top: 20px;">

    <tr>
        <th><?php esc_html_e( 'Status:', 'redis-cache' ); ?></th>
        <td>
            <?php if ( $status ) : ?>
                <span class="success">
                    <span class="dashicons dashicons-yes-alt"></span>
                    <?php echo esc_html( $roc->get_status() ); ?>
                </span>
            <?php else : ?>
                <span class="warning">
                    <span class="dashicons dashicons-warning"></span>
                    <?php echo esc_html( $roc->get_status() ); ?>
                </span>
            <?php endif; ?>
        </td>
    </tr>

    <tr>
        <th><?php esc_html_e( 'Filesystem:', 'redis-cache' ); ?></th>
        <td>
            <?php if ( $filesystem_writable instanceof \WP_Error ) : ?>
                <span class="error">
                    <span class="dashicons dashicons-dismiss"></span>
                    <?php esc_html_e( 'Not writeable', 'redis-cache' ); ?>
                </span>
            <?php else : ?>
                <span class="success">
                    <span class="dashicons dashicons-yes-alt"></span>
                    <?php esc_html_e( 'Writeable', 'redis-cache' ); ?>
                </span>
            <?php endif; ?>
        </td>
    </tr>

    <tr>
        <th><?php esc_html_e( 'Redis:', 'redis-cache' ); ?></th>
        <td>
            <?php if ( $redis_connection === true ) : ?>
                <span class="success">
                    <span class="dashicons dashicons-yes-alt"></span>
                    <?php esc_html_e( 'Reachable', 'redis-cache' ); ?>
                </span>
            <?php else : ?>
                <span class="error">
                    <span class="dashicons dashicons-dismiss"></span>
                    <?php esc_html_e( 'Unreachable', 'redis-cache' ); ?>
                </span>
            <?php endif; ?>
        </td>
    </tr>

    <?php if ( ! is_null( $redis_prefix ) && trim( $redis_prefix ) !== '' ) : ?>
        <tr>
            <th><?php esc_html_e( 'Key Prefix:', 'redis-cache' ); ?></th>
            <td>
                <code><?php echo esc_html( $redis_prefix ); ?></code>
            </td>
        </tr>
    <?php endif; ?>

    <?php if ( ! is_null( $redis_maxttl ) ) : ?>
        <tr>
            <th><?php esc_html_e( 'Max. TTL:', 'redis-cache' ); ?></th>
            <td>
                <code><?php echo esc_html( $redis_maxttl ); ?></code>

                <?php if ( ! is_int( $redis_maxttl ) && ! ctype_digit( (string) $redis_maxttl ) ) : ?>
                    <p class="description is-notice">
                        <?php esc_html_e( 'This doesn’t appear to be a valid number.', 'redis-cache' ); ?>
                    </p>
                <?php endif; ?>
            </td>
        </tr>
    <?php endif; ?>

</table>

<?php if ( $status ) : ?>

<h2 class="title">
    <?php esc_html_e( 'Connection', 'redis-cache' ); ?>
</h2>

<table class="form-table">

    <?php if ( ! is_null( $redis_client ) ) : ?>
        <tr>
            <th><?php esc_html_e( 'Client:', 'redis-cache' ); ?></th>
            <td>
                <code><?php echo esc_html( $redis_client ); ?></code>
            </td>
        </tr>
    <?php endif; ?>

    <?php if ( ! empty( $diagnostics['host'] ) || ! empty( $diagnostics['path'] ) ) : ?>
        <tr>
            <th><?php esc_html_e( 'Host:', 'redis-cache' ); ?></th>
            <td><code><?php echo esc_html( $diagnostics['host'] ?? $diagnostics['path'] ); ?></code></td>
        </tr>
    <?php endif; ?>

    <?php if ( isset( $diagnostics['cluster'] ) && is_array( $diagnostics['cluster'] ) ) : ?>
        <tr>
            <th><?php esc_html_e( 'Cluster:', 'redis-cache' ); ?></th>
            <td>
                <ul>
                    <?php foreach ( $diagnostics['cluster'] as $node ) : ?>
                        <li><code><?php echo esc_html( $node ); ?></code></li>
                    <?php endforeach; ?>
                </ul>
            </td>
        </tr>
    <?php endif; ?>

    <?php if ( isset( $diagnostics['shards'] ) && is_array( $diagnostics['shards'] ) ) : ?>
        <tr>
            <th><?php esc_html_e( 'Shards:', 'redis-cache' ); ?></th>
            <td>
                <ul>
                    <?php foreach ( $diagnostics['shards'] as $node ) : ?>
                        <li><code><?php echo esc_html( $node ); ?></code></li>
                    <?php endforeach; ?>
                </ul>
            </td>
        </tr>
    <?php endif; ?>

    <?php if ( isset( $diagnostics['servers'] ) && is_array( $diagnostics['servers'] ) ) : ?>
        <tr>
            <th><?php esc_html_e( 'Servers:', 'redis-cache' ); ?></th>
            <td>
                <ul>
                    <?php foreach ( $diagnostics['servers'] as $node ) : ?>
                        <li><code><?php echo esc_html( $roc->obscure_url_secrets( $node ) ); ?></code></li>
                    <?php endforeach; ?>
                </ul>
            </td>
        </tr>
    <?php endif; ?>

    <?php if ( ! empty( $diagnostics['port'] ) && $diagnostics['port'] > 0 ) : ?>
        <tr>
            <th><?php esc_html_e( 'Port:', 'redis-cache' ); ?></th>
            <td><code><?php echo esc_html( $diagnostics['port'] ); ?></code></td>
        </tr>
    <?php endif; ?>

    <?php if ( isset( $diagnostics['password'][0] ) ) : ?>
        <tr>
            <th><?php esc_html_e( 'Username:', 'redis-cache' ); ?></th>
            <td><code><?php echo esc_html( $diagnostics['password'][0] ); ?></code></td>
        </tr>
    <?php endif; ?>

    <?php if ( isset( $diagnostics['password'] ) ) : ?>
        <tr>
            <th><?php esc_html_e( 'Password:', 'redis-cache' ); ?></th>
            <td>
                <code>••••••••</code>
            </td>
        </tr>
    <?php endif; ?>

    <?php if ( isset( $diagnostics['database'] ) ) : ?>
        <tr>
            <th><?php esc_html_e( 'Database:', 'redis-cache' ); ?></th>
            <td><code><?php echo esc_html( $diagnostics['database'] ); ?></code></td>
        </tr>
    <?php endif; ?>

    <?php if ( isset( $diagnostics['timeout'] ) ) : ?>
        <tr>
            <th><?php esc_html_e( 'Connection Timeout:', 'redis-cache' ); ?></th>
            <td>
                <code>
                    <?php
                        echo sprintf(
                            // translators: %s = Redis connection/read timeout in seconds.
                            esc_html__( '%ss', 'redis-cache' ),
                            esc_html( $diagnostics['timeout'] )
                        );
                    ?>
                </code>
            </td>
        </tr>
    <?php endif; ?>

    <?php if ( isset( $diagnostics['read_timeout'] ) ) : ?>
        <tr>
            <th><?php esc_html_e( 'Read Timeout:', 'redis-cache' ); ?></th>
            <td>
                <code>
                    <?php
                        echo sprintf(
                            // translators: %s = Redis connection/read timeout in seconds.
                            esc_html__( '%ss', 'redis-cache' ),
                            esc_html( $diagnostics['read_timeout'] )
                        );
                    ?>
                </code>
            </td>
        </tr>
    <?php endif; ?>

    <?php if ( isset( $diagnostics['retry_interval'] ) ) : ?>
        <tr>
            <th><?php esc_html_e( 'Retry Interval:', 'redis-cache' ); ?></th>
            <td>
                <code>
                    <?php
                        echo sprintf(
                            // translators: %s = Redis retry interval in milliseconds.
                            esc_html__( '%sms', 'redis-cache' ),
                            esc_html( $diagnostics['retry_interval'] )
                        );
                    ?>
                </code>
            </td>
        </tr>
    <?php endif; ?>

    <?php if ( ! is_null( $redis_version ) ) : ?>
        <tr>
            <th><?php esc_html_e( 'Redis Version:', 'redis-cache' ); ?></th>
            <td><code><?php echo esc_html( $redis_version ) ?: esc_html_e( 'Unknown', 'redis-cache' ); ?></code></td>
        </tr>
    <?php endif; ?>

</table>

<?php endif; ?>

<p class="submit">

    <?php if ( $roc->get_redis_status() ) : ?>
        <a href="<?php echo esc_attr( $roc->action_link( 'flush-cache' ) ); ?>" class="button button-primary button-large">
            <?php esc_html_e( 'Flush Cache', 'redis-cache' ); ?>
        </a> &nbsp;
    <?php endif; ?>

    <?php if ( $roc->validate_object_cache_dropin() ) : ?>
        <a href="<?php echo esc_attr( $roc->action_link( 'disable-cache' ) ); ?>" class="button button-secondary button-large">
            <?php esc_html_e( 'Disable Object Cache', 'redis-cache' ); ?>
        </a>
    <?php else : ?>
        <?php if ( ! $filesystem_writable instanceof \WP_Error && $redis_connection === true ) : ?>
            <a href="<?php echo esc_attr( $roc->action_link( 'enable-cache' ) ); ?>" class="button button-primary button-large">
                <?php esc_html_e( 'Enable Object Cache', 'redis-cache' ); ?>
            </a>
        <?php else: ?>
            <a href="#!" class="button button-primary button-large" disabled>
                <?php esc_html_e( 'Enable Object Cache', 'redis-cache' ); ?>
            </a>
        <?php endif; ?>
    <?php endif; ?>

</p>