generic.php

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<?php
echo elgg_view('output/longtext', [
    'value' => elgg_echo('admin:performance:generic:description'),
]);

$icon_ok = elgg_view_icon('check');
$icon_warning = elgg_view_icon('exclamation-triangle');
$icon_error = elgg_view_icon('times');

$view_module = function($icon, $title, $value = '', $subtext = '') {
    $body = elgg_format_element('strong', [], $title);
    if (!elgg_is_empty($value)) {
        $body .= elgg_format_element('span', ['class' => 'mlm'], $value);
    }
    
    if (!elgg_is_empty($subtext)) {
        $body .= elgg_format_element('div', ['class' => 'elgg-subtext'], $subtext);
    }
    
    return elgg_view_image_block($icon, $body, ['class' => 'elgg-admin-information-row']);
};

// apache version
// Check if the function exists before callling it else it may fail in case of Nginx or other Non Apache servers
if (function_exists('apache_get_version')) {
    if (apache_get_version() !== false) {
        $icon = $icon_warning;
        $title = elgg_echo('admin:performance:apache:mod_cache');
        $value = elgg_echo('status:unavailable');
        $subtext = '';
        
        if (in_array('mod_cache', apache_get_modules())) {
            $icon = $icon_ok;
            $value = elgg_echo('status:enabled');
        } else {
            $subtext = elgg_echo('admin:performance:apache:mod_cache:warning');
        }
        
        echo $view_module($icon, $title, $value, $subtext);
    }
}

// open_basedir
$icon = $icon_ok;
$title = elgg_echo('admin:performance:php:open_basedir');
$value = elgg_echo('admin:performance:php:open_basedir:not_configured');
$subtext = '';

$open_basedirs = ini_get('open_basedir');
if (!empty($open_basedirs)) {
    $icon = $icon_warning;
    $value = elgg_format_element('span', ['class' => ['elgg-subtext']], $open_basedirs);
    
    $separator = ':';
    if (stripos(PHP_OS, 'WIN') === 0) {
        $separator = ';';
    }
    
    $parsed_open_basedirs = explode($separator, $open_basedirs);
    
    if (count($parsed_open_basedirs) > 5) {
        $icon = $icon_error;
        $subtext = elgg_echo('admin:performance:php:open_basedir:error');
    } else {
        $subtext = elgg_echo('admin:performance:php:open_basedir:warning');
    }
    
    $subtext .= ' ' . elgg_echo('admin:performance:php:open_basedir:generic');
}

echo $view_module($icon, $title, $value, $subtext);

// opcache
$icon = $icon_error;
$title = elgg_echo('admin:server:label:opcache');
$value = elgg_echo('status:unavailable');
$subtext = '';

if (function_exists('opcache_get_status')) {
    $icon = $icon_warning;
    $opcache_status = opcache_get_status(false);
    
    if (!empty($opcache_status)) {
        $icon = $icon_ok;
        $value = elgg_echo('status:enabled');
    } else {
        $value = elgg_echo('status:disabled');
        $subtext = elgg_echo('admin:server:opcache:inactive');
    }
}

echo $view_module($icon, $title, $value, $subtext);

// memcache
$icon = $icon_error;
$title = elgg_echo('admin:server:label:memcache');
$value = elgg_echo('status:unavailable');
$subtext = '';

if (\Elgg\Cache\CompositeCache::isMemcacheAvailable()) {
    $icon = $icon_warning;
    
    if (elgg_get_config('memcache') && !empty(elgg_get_config('memcache_servers'))) {
        $icon = $icon_ok;
        $value = elgg_echo('status:enabled');
    } else {
        $value = elgg_echo('status:disabled');
        $subtext = elgg_echo('admin:server:memcache:inactive');
    }
}

echo $view_module($icon, $title, $value, $subtext);

// redis
$icon = $icon_error;
$title = elgg_echo('admin:server:label:redis');
$value = elgg_echo('status:unavailable');
$subtext = '';

if (\Elgg\Cache\CompositeCache::isRedisAvailable()) {
    $icon = $icon_warning;
    
    if (elgg_get_config('redis') && !empty(elgg_get_config('redis_servers'))) {
        $icon = $icon_ok;
        $value = elgg_echo('status:enabled');
    } else {
        $value = elgg_echo('status:disabled');
        $subtext = elgg_echo('admin:server:redis:inactive');
    }
}

echo $view_module($icon, $title, $value, $subtext);

// simplecache
$icon = $icon_error;
$title = elgg_view('output/url', [
    'text' => elgg_echo('admin:performance:simplecache'),
    'href' => elgg_generate_url('admin', [
        'segments' => 'site_settings',
    ]) . '#elgg-settings-advanced-caching',
    'is_trusted' => true,
]);
$value = elgg_echo('status:disabled');
$subtext = elgg_echo('installation:simplecache:description');

if (elgg_is_simplecache_enabled()) {
    $icon = $icon_ok;
    $value = elgg_echo('status:enabled');
    
    if (!elgg()->config->hasInitialValue('simplecache_enabled')) {
        $icon = $icon_warning;
        $subtext = elgg_echo('admin:performance:simplecache:settings:warning');
    }
}

echo $view_module($icon, $title, $value, $subtext);

// systemcache
$icon = $icon_error;
$title = elgg_view('output/url', [
    'text' => elgg_echo('admin:performance:systemcache'),
    'href' => elgg_generate_url('admin', [
        'segments' => 'site_settings',
    ]) . '#elgg-settings-advanced-caching',
    'is_trusted' => true,
]);
$value = elgg_echo('status:disabled');
$subtext = elgg_echo('installation:systemcache:description');

if (elgg_is_system_cache_enabled()) {
    $icon = $icon_ok;
    $value = elgg_echo('status:enabled');
    $subtext = '';
}

echo $view_module($icon, $title, $value, $subtext);