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<?php
/**
* Created by JetBrains PhpStorm.
* User: cyonite
* Date: 5/17/13
* Time: 2:45 PM
* To change this template use File | Settings | File Templates.
*/
w3_require_once(W3TC_INC_FUNCTIONS_DIR . '/admin_ui.php');
w3_require_once(W3TC_INC_FUNCTIONS_DIR . '/http.php');
abstract class W3_UI_PluginView {
/**
* Config
*
* @var W3_Config
*/
var $_config = null;
/**
* Notes
*
* @var array
*/
var $_notes = array();
/**
* Errors
*
* @var array
*/
var $_errors = array();
/**
* Rule-related errors about modifications in .htaccess
*
* @var array
*/
var $_rule_errors = array();
/**
* Rule-related errors about modification of root config file
* @var array
*/
var $_rule_errors_root = array();
/**
* Link for hiding of root rules notification
*
* @var string
*/
var $_rule_errors_root_hide = '';
/**
* If missing folder error
* @var string
*/
var $_use_ftp_form = false;
/**
* Link for auto-installing of rules
*
* @var string
*/
var $_rule_errors_autoinstall = '';
/**
* Link for hiding of rules notification
*
* @var string
*/
var $_rule_errors_hide = '';
/**
* Used in PHPMailer init function
*
* @var string
*/
var $_phpmailer_sender = '';
/**
* Admin configuration
*
* @var W3_ConfigAdmin
*/
var $_config_admin;
/**
* Master configuration
*
* @var W3_Config
*/
var $_config_master;
/**
* @var string WordPress FTP form
*/
var $_ftp_form;
var $_disable_cache_write_notification = false;
var $_disable_add_in_files_notification = false;
var $_disable_minify_error_notification = false;
var $_disable_file_operation_notification = false;
var $_page;
function __construct() {
$this->_config = w3_instance('W3_Config');
$this->_config_master = new W3_Config(true);
$this->_config_admin = w3_instance('W3_ConfigAdmin');
w3_require_once(W3TC_LIB_W3_DIR . '/Request.php');
w3_require_once(W3TC_INC_FUNCTIONS_DIR . '/admin.php');
$this->_page = w3tc_get_current_page();
}
function options() {
$remove_results = array();
$w3tc_error = array();
w3_require_once(W3TC_INC_DIR . '/functions/activation.php');
$preview = $this->_config->is_preview();
if (w3_is_network() && !$this->is_master()) {
$this->_config_master = new W3_Config(true);
}
else
$this->_config_master = $this->_config;
/**
* Check for page cache availability
*/
$wp_config_edit = false;
/**
* Check memcached
*/
$memcaches_errors = array();
if ($this->_config->get_boolean('pgcache.enabled') && $this->_config->get_string('pgcache.engine') == 'memcached') {
$pgcache_memcached_servers = $this->_config->get_array('pgcache.memcached.servers');
if (!$this->is_memcache_available($pgcache_memcached_servers)) {
$memcaches_errors[] = sprintf(__('Page Cache: %s.', 'w3-total-cache'), implode(', ', $pgcache_memcached_servers));
}
}
if ($this->_config->get_boolean('minify.enabled') && $this->_config->get_string('minify.engine') == 'memcached') {
$minify_memcached_servers = $this->_config->get_array('minify.memcached.servers');
if (!$this->is_memcache_available($minify_memcached_servers)) {
$memcaches_errors[] = sprintf(__('Minify: %s.', 'w3-total-cache'), implode(', ', $minify_memcached_servers));
}
}
if ($this->_config->get_boolean('dbcache.enabled') && $this->_config->get_string('dbcache.engine') == 'memcached') {
$dbcache_memcached_servers = $this->_config->get_array('dbcache.memcached.servers');
if (!$this->is_memcache_available($dbcache_memcached_servers)) {
$memcaches_errors[] = sprintf(__('Database Cache: %s.', 'w3-total-cache'), implode(', ', $dbcache_memcached_servers));
}
}
if ($this->_config->get_boolean('objectcache.enabled') && $this->_config->get_string('objectcache.engine') == 'memcached') {
$objectcache_memcached_servers = $this->_config->get_array('objectcache.memcached.servers');
if (!$this->is_memcache_available($objectcache_memcached_servers)) {
$memcaches_errors[] = sprintf(__('Object Cache: %s.', 'w3-total-cache'), implode(', ', $objectcache_memcached_servers));
}
}
if (count($memcaches_errors)) {
$memcache_error = __('The following memcached servers are not responding or not running:</p><ul>', 'w3-total-cache');
foreach ($memcaches_errors as $memcaches_error) {
$memcache_error .= '<li>' . $memcaches_error . '</li>';
}
$memcache_error .= __('</ul><p>This message will automatically disappear once the issue is resolved.', 'w3-total-cache');
$this->_errors[] = $memcache_error;
}
/**
* Check CURL extension
*/
if ($this->_config->get_boolean('notes.no_curl') && $this->_config->get_boolean('cdn.enabled') && !function_exists('curl_init')) {
$this->_notes[] = sprintf(__('The <strong>CURL PHP</strong> extension is not available. Please install it to enable S3 or CloudFront functionality. %s', 'w3-total-cache'), w3_button_hide_note('Hide this message', 'no_curl'));
}
/**
* Check Zlib extension
*/
if ($this->_config->get_boolean('notes.no_zlib') && !function_exists('gzencode')) {
$this->_notes[] = sprintf(__('Unfortunately the PHP installation is incomplete, the <strong>zlib module is missing</strong>. This is a core PHP module. Notify the server administrator. %s', 'w3-total-cache'), w3_button_hide_note(__('Hide this message', 'w3-total-cache'), 'no_zlib'));
}
/**
* Check if Zlib output compression is enabled
*/
if ($this->_config->get_boolean('notes.zlib_output_compression') && w3_zlib_output_compression()) {
$this->_notes[] = sprintf(__('Either the PHP configuration, web server configuration or a script in the WordPress installation has <strong>zlib.output_compression</strong> enabled.<br />Please locate and disable this setting to ensure proper HTTP compression behavior. %s', 'w3-total-cache'), w3_button_hide_note(__('Hide this message', 'w3-total-cache'), 'zlib_output_compression'));
}
/**
* Check wp-content permissions
*/
if (!W3TC_WIN && $this->_config->get_boolean('notes.wp_content_perms')) {
w3_require_once( W3TC_INC_DIR . '/functions/file.php');
$wp_content_mode = w3_get_file_permissions(WP_CONTENT_DIR);
if ($wp_content_mode > 0755) {
$this->_notes[] = sprintf(__('<strong>%s</strong> is write-able. When finished installing the plugin,
change the permissions back to the default: <strong>chmod 755 %s</strong>.
Permissions are currently %s. %s', 'w3-total-cache')
, WP_CONTENT_DIR
, WP_CONTENT_DIR
, base_convert(w3_get_file_permissions(WP_CONTENT_DIR), 10, 8)
, w3_button_hide_note(__('Hide this message', 'w3-total-cache'), 'wp_content_perms'));
}
}
/**
* Check wp-content permissions
*/
if (!W3TC_WIN && $this->_config->get_boolean('notes.wp_content_changed_perms')) {
$perm = get_transient('w3tc_prev_permission');
$current_perm = w3_get_file_permissions(WP_CONTENT_DIR);
if ($perm && $perm != base_convert($current_perm, 10, 8) && ($current_perm > 0755 || $perm < base_convert($current_perm, 10, 8))) {
$this->_notes[] = sprintf(__('<strong>%s</strong> permissions were changed during the setup process.
Permissions are currently %s.<br />To restore permissions run
<strong>chmod %s %s</strong>. %s', 'w3-total-cache')
, WP_CONTENT_DIR
, base_convert($current_perm, 10, 8)
, $perm
, WP_CONTENT_DIR
, w3_button_hide_note(__('Hide this message', 'w3-total-cache'), 'wp_content_changed_perms'));
}
}
/**
* Check permalinks
*/
if ($this->_config->get_boolean('notes.no_permalink_rules') && (($this->_config->get_boolean('pgcache.enabled') && $this->_config->get_string('pgcache.engine') == 'file_generic') || ($this->_config->get_boolean('browsercache.enabled') && $this->_config->get_boolean('browsercache.no404wp'))) && !w3_is_permalink_rules()) {
$this->_errors[] = sprintf(__('The required directives for fancy permalinks could not be detected, please confirm they are available: <a href="http://codex.wordpress.org/Using_Permalinks#Creating_and_editing_.28.htaccess.29">Creating and editing</a> %s', 'w3-total-cache'), w3_button_hide_note(__('Hide this message', 'w3-total-cache'), 'no_permalink_rules'));
}
/**
* CDN
*/
if ($this->_config->get_boolean('cdn.enabled')) {
/**
* Check upload settings
*/
$upload_info = w3_upload_info();
if (!$upload_info) {
$upload_path = get_option('upload_path');
$upload_path = trim($upload_path);
if (empty($upload_path)) {
$upload_path = WP_CONTENT_DIR . '/uploads';
$this->_errors[] = sprintf(__('The uploads directory is not available. Default WordPress directories will be created: <strong>%s</strong>.', 'w3-total-cache'), $upload_path);
}
if (!w3_is_multisite()) {
$this->_errors[] = sprintf(__('The uploads path found in the database (%s) is inconsistent with the actual path. Please manually adjust the upload path either in miscellaneous settings or if not using a custom path %s automatically to resolve the issue.', 'w3-total-cache'), $upload_path, w3_button_link(__('update the path', 'w3-total-cache'), wp_nonce_url(sprintf('admin.php?page=%s&w3tc_config_update_upload_path', $this->_page), 'w3tc')));
}
}
/**
* Check CDN settings
*/
$cdn_engine = $this->_config->get_string('cdn.engine');
$error = '';
switch (true) {
case ($cdn_engine == 'ftp' && !count($this->_config->get_array('cdn.ftp.domain'))):
$this->_errors[] = __('A configuration issue prevents <acronym title="Content Delivery Network">CDN</acronym> from working:
The <strong>"Replace default hostname with"</strong>
field cannot be empty. Enter <acronym
title="Content Delivery Network">CDN</acronym>
provider hostname <a href="?page=w3tc_cdn#configuration">here</a>.
<em>(This is the hostname used in order to view objects
in a browser.)</em>', 'w3-total-cache');
break;
case ($cdn_engine == 's3' && ($this->_config->get_string('cdn.s3.key') == '' || $this->_config->get_string('cdn.s3.secret') == '' || $this->_config->get_string('cdn.s3.bucket') == '')):
$error = __('The <strong>"Access key", "Secret key" and "Bucket"</strong> fields cannot be empty.', 'w3-total-cache');
break;
case ($cdn_engine == 'cf' && ($this->_config->get_string('cdn.cf.key') == '' || $this->_config->get_string('cdn.cf.secret') == '' || $this->_config->get_string('cdn.cf.bucket') == '' || ($this->_config->get_string('cdn.cf.id') == '' && !count($this->_config->get_array('cdn.cf.cname'))))):
$error = __('The <strong>"Access key", "Secret key", "Bucket" and "Replace default hostname with"</strong> fields cannot be empty.', 'w3-total-cache');
break;
case ($cdn_engine == 'cf2' && ($this->_config->get_string('cdn.cf2.key') == '' || $this->_config->get_string('cdn.cf2.secret') == '' || ($this->_config->get_string('cdn.cf2.id') == '' && !count($this->_config->get_array('cdn.cf2.cname'))))):
$error = __('The <strong>"Access key", "Secret key" and "Replace default hostname with"</strong> fields cannot be empty.', 'w3-total-cache');
break;
case ($cdn_engine == 'rscf' && ($this->_config->get_string('cdn.rscf.user') == '' || $this->_config->get_string('cdn.rscf.key') == '' || $this->_config->get_string('cdn.rscf.container') == '' || !count($this->_config->get_array('cdn.rscf.cname')))):
$error = __('The <strong>"Username", "API key", "Container" and "Replace default hostname with"</strong> fields cannot be empty.', 'w3-total-cache');
break;
case ($cdn_engine == 'azure' && ($this->_config->get_string('cdn.azure.user') == '' || $this->_config->get_string('cdn.azure.key') == '' || $this->_config->get_string('cdn.azure.container') == '')):
$error = __('The <strong>"Account name", "Account key" and "Container"</strong> fields cannot be empty.', 'w3-total-cache');
break;
case ($cdn_engine == 'mirror' && !count($this->_config->get_array('cdn.mirror.domain'))):
$error = __('The <strong>"Replace default hostname with"</strong> field cannot be empty.', 'w3-total-cache');
break;
case ($cdn_engine == 'netdna'):
$fields = array();
if ($this->_config->get_string('cdn.netdna.authorization_key') == '')
$fields[] = '"' . __('Authorization key', 'w3-total-cache') . '"';
if (!count($this->_config->get_array('cdn.netdna.domain')))
$fields[] = '"' . __('Replace default hostname with', 'w3-total-cache') . '"';
if ($fields) {
$error = sprintf(__('The <strong>%s</strong> field(s) cannot be empty.', 'w3-total-cache'),
implode(__(' and ', 'w3-total-cache'), $fields));
}
if ($this->_config->get_string('cdn.netdna.authorization_key') != '' &&
sizeof(explode('+', $this->_config->get_string('cdn.netdna.authorization_key'))) != 3)
$error .= __('The <strong>"Authorization key"</strong> is not correct.', 'w3-total-cache');
elseif ($this->_config->get_integer('cdn.netdna.zone_id', 0) <= 0)
$error .= __('You need to select / create a pull zone.', 'w3-total-cache');
break;
case ($cdn_engine == 'maxcdn'):
$fields = array();
if ($this->_config->get_string('cdn.maxcdn.authorization_key') == '')
$fields[] = '"' . __('Authorization key', 'w3-total-cache') . '"';
if (!count($this->_config->get_array('cdn.maxcdn.domain')))
$fields[] = '"' . __('Replace default hostname with', 'w3-total-cache') . '"';
if ($fields) {
$error = sprintf(__('The <strong>%s</strong> field(s) cannot be empty.', 'w3-total-cache'),
implode(__(' and ', 'w3-total-cache'), $fields));
}
if ($this->_config->get_string('cdn.maxcdn.authorization_key') != '' &&
sizeof(explode('+', $this->_config->get_string('cdn.maxcdn.authorization_key'))) != 3)
$error .= __('The <strong>"Authorization key"</strong> is not correct.', 'w3-total-cache');
elseif ($this->_config->get_integer('cdn.maxcdn.zone_id', 0) <= 0)
$error .= __('You need to select / create a pull zone.', 'w3-total-cache');
break;
case ($cdn_engine == 'cotendo' && !count($this->_config->get_array('cdn.cotendo.domain'))):
$error = __('The <strong>"Replace default hostname with"</strong> field cannot be empty.', 'w3-total-cache');
break;
case ($cdn_engine == 'edgecast' && !count($this->_config->get_array('cdn.edgecast.domain'))):
$error = __('The <strong>"Replace default hostname with"</strong> field cannot be empty.', 'w3-total-cache');
break;
case ($cdn_engine == 'att' && !count($this->_config->get_array('cdn.att.domain'))):
$error = __('The <strong>"Replace default hostname with"</strong> field cannot be empty.', 'w3-total-cache');
break;
case ($cdn_engine == 'akamai' && !count($this->_config->get_array('cdn.akamai.domain'))):
$error = 'The <strong>"Replace default hostname with"</strong> field cannot be empty.';
break;
}
if ($error) {
$this->_errors[] = __('A configuration issue prevents <acronym title="Content Delivery Network">CDN</acronym> from working: ', 'w3-total-cache') . $error . __(' <a href="?page=w3tc_cdn#configuration">Specify it here</a>.', 'w3-total-cache');
}
}
/**
* Preview mode
*/
if ($this->_config->is_preview()) {
$this->_notes[] = sprintf(__('Preview mode is active: Changed settings will not take effect until preview mode is %s or %s.', 'w3-total-cache'), w3_button_link(__('deploy', 'w3-total-cache'), wp_nonce_url(sprintf('admin.php?page=%s&w3tc_config_preview_deploy', $this->_page), 'w3tc')), w3_button_link(__('disable', 'w3-total-cache'), wp_nonce_url(sprintf('admin.php?page=%s&w3tc_config_preview_disable', $this->_page), 'w3tc'))) .
'<br /><span class="description">'. sprintf(__('To preview any changed settings (without deploying): %s', 'w3-total-cache'), w3tc_get_preview_link()). '</span>';
}
/**
*
*/
if ($this->_config->get_boolean('notes.root_rules') && count($this->_rule_errors_root) > 0) {
$this->_rule_errors_root_hide = w3_button_hide_note(__('Hide this message', 'w3-total-cache'), 'root_rules');
} else {
$this->_rule_errors_root = array();
}
$this->_disable_file_operation_notification = $this->_disable_add_in_files_notification || $this->_disable_cache_write_notification;
if (!$this->_disable_file_operation_notification && isset($file_operation_exception) && $file_operation_exception) {
$tech_message = '<ul>';
$core_rules_perms = '';
if (w3_get_file_permissions(w3_get_wp_config_path()) != 0644)
$core_config_perms = sprintf(__('File permissions are <strong>%s</strong>, however they should be
<strong>644</strong>.', 'w3-total-cache')
, base_convert(w3_get_file_permissions(w3_get_wp_config_path()), 10, 8)
);
else
$core_config_perms = sprintf(__('File permissions are <strong>%s</strong>', 'w3-total-cache'), base_convert(w3_get_file_permissions(w3_get_wp_config_path()), 10, 8));
if (w3_get_file_permissions(w3_get_pgcache_rules_core_path()) != 0644)
$core_rules_perms = sprintf(__('File permissions are <strong>%s</strong>, however they should be
<strong>644</strong>.', 'w3-total-cache')
, base_convert(w3_get_file_permissions(w3_get_pgcache_rules_core_path()), 10, 8)
);
else
$core_rules_perms = sprintf(__('File permissions are <strong>%s</strong>', 'w3-total-cache'), base_convert(w3_get_file_permissions(w3_get_pgcache_rules_core_path()), 10, 8));
$wp_content_perms = '';
if (w3_get_file_permissions(WP_CONTENT_DIR) != 0755)
$wp_content_perms = sprintf(__('Directory permissions are <strong>%s</strong>, however they should be
<strong>755</strong>.', 'w3-total-cache')
, base_convert(w3_get_file_permissions(WP_CONTENT_DIR), 10, 8)
);
$tech_message .= '<li>' . sprintf(__('File: <strong>%s</strong> %s File owner: %s', 'w3-total-cache')
,w3_get_wp_config_path()
,$core_config_perms
, w3_get_file_owner(w3_get_wp_config_path())) .
'</li>' ;
$tech_message .= '<li>' . sprintf(__('File: <strong>%s</strong> %s File owner: %s', 'w3-total-cache')
,w3_get_pgcache_rules_core_path()
,$core_rules_perms
, w3_get_file_owner(w3_get_pgcache_rules_core_path())) .
'</li>' ;
$tech_message .= '<li>' . sprintf(__('Directory: <strong>%s</strong> %s File owner: %s', 'w3-total-cache')
, WP_CONTENT_DIR
, $wp_content_perms
, w3_get_file_owner(WP_CONTENT_DIR)) .
'</li>' ;
$tech_message .= '<li>' . sprintf(__('Owner of current file: %s', 'w3-total-cache'), w3_get_file_owner()) .
'</li>' ;
if (!(w3_get_file_owner() == w3_get_file_owner(w3_get_pgcache_rules_core_path()) &&
w3_get_file_owner() == w3_get_file_owner(WP_CONTENT_DIR)))
$tech_message .= __('<li>The files and directories have different ownership, they should have the same ownership.
</li>', 'w3-total-cache');
$tech_message .= '</ul>';
$tech_message = '<div class="w3tc-technical-info" style="display:none">' . $tech_message . '</div>';
$w3tc_error[] = sprintf(__('<strong>W3 Total Cache Error:</strong> The plugin tried to edit, %s, but failed.
Files and directories cannot be modified. Please review your
<a target="_blank" href="http://codex.wordpress.org/Changing_File_Permissions">
file permissions</a>. A common cause is %s and %s having different ownership or permissions.
%s %s', 'w3-total-cache')
, $wp_config_edit ? w3_get_wp_config_path() : w3_get_pgcache_rules_core_path()
, $wp_config_edit ? basename(w3_get_wp_config_path()) : basename(w3_get_pgcache_rules_core_path())
, WP_CONTENT_DIR
, w3_button(__('View technical information', 'w3-total-cache'), '', 'w3tc-show-technical-info')
,$tech_message);
}
/**
* Remove functions results
*/
if ($remove_results) {
foreach ($remove_results as $result) {
$this->_errors = array_merge($this->_errors, $result['errors']);
if (!isset($this->_ftp_form) && isset($result['ftp_form'])) {
$extra_ftp_message = __('Please enter FTP details <a href="#ftp_upload_form">below</a> to remove the disabled modules. ', 'w3-total-cache');
$this->_ftp_form = $result['ftp_form'];
$this->_use_ftp_form = true;
}
}
if (isset($extra_ftp_message))
$this->_errors[] = $extra_ftp_message;
}
foreach ($w3tc_error as $error)
array_unshift($this->_errors, $error);
if (isset($this->_ftp_form))
$this->_use_ftp_form = true;
$this->view();
}
/**
* Returns postbox header
*
* @param string $title
* @param string $class
* @param string $id
* @return string
*/
function postbox_header($title, $class = '', $id = '') {
if ( !empty( $id ) ) {
$id = ' id="' . esc_attr( $id ) . '"';
}
return '<div' . $id . ' class="postbox ' . $class . '"><div class="handlediv" title="' . __('Click to toggle', 'w3-total-cache') . '"><br /></div><h3 class="hndle"><span>' . $title . '</span></h3><div class="inside">';
}
/**
* Returns postbox footer
*
* @return string
*/
function postbox_footer() {
return '</div></div>';
}
/**
* Returns nonce field HTML
*
* @param string $action
* @param string $name
* @param bool $referer
* @internal param bool $echo
* @return string
*/
function nonce_field($action = -1, $name = '_wpnonce', $referer = true) {
$name = esc_attr($name);
$return = '<input type="hidden" name="' . $name . '" value="' . wp_create_nonce($action) . '" />';
if ($referer) {
$return .= wp_referer_field(false);
}
return $return;
}
/**
* Returns true if config section is sealed
* @param string $section
* @return boolean
*/
protected function is_sealed($section) {
if ($this->is_master())
return false;
if (w3_is_network() && !$this->is_master() && w3_force_master())
return true;
// browsercache settings change rules, so not available in child settings
if ($section == 'browsercache')
return true;
if ($section == 'minify' && !$this->_config_master->get_boolean('minify.enabled'))
return true;
return $this->_config_admin->get_boolean($section . '.configuration_sealed');
}
/**
* Returns true if we edit master config
*
* @return boolean
*/
protected function is_master() {
return $this->_config->is_master();
}
/**
* Prints checkbox with config option value
*
* @param string $option_id
* @param bool $disabled
* @param string $class_prefix
* @param bool $label
*/
protected function checkbox($option_id, $disabled = false, $class_prefix = '', $label = true) {
$section = substr($option_id, 0, strpos($option_id, '.'));
$disabled = $disabled || $this->is_sealed($section);
if (!$disabled)
echo '<input type="hidden" name="' . $option_id . '" value="0" />';
$name = str_replace('.', '_', $option_id);
if ($label)
echo '<label>';
echo '<input class="'.$class_prefix.'enabled" type="checkbox" id="' . $name .
'" name="' . $option_id . '" value="1" ';
checked($this->_config->get_boolean($option_id), true);
if ($disabled)
echo 'disabled="disabled" ';
echo ' />';
}
/**
* Prints a radio button and if config value matches value
* @param string $option_id config id
* @param $value
* @param bool $disabled
* @param string $class_prefix
*/
protected function radio($option_id, $value, $disabled = false, $class_prefix = ''){
$section = substr($option_id, 0, strpos($option_id, '.'));
if(is_bool($value))
$rValue = $value?'1':'0';
else
$rValue = $value;
$disabled = $disabled || $this->is_sealed($section);
$name = str_replace('.', '_', $option_id);
echo '<label>';
echo '<input class="'.$class_prefix.'enabled" type="radio" id="' . $name .
'" name="' . $option_id . '" value="',$rValue,'" ';
checked($this->_config->get_boolean($option_id), $value);
if ($disabled)
echo 'disabled="disabled" ';
echo ' />';
}
/**
* Prints checkbox for debug option
*
* @param string $option_id
*/
protected function checkbox_debug($option_id) {
$section = substr($option_id, 0, strrpos($option_id, '.'));
$section_enabled = $this->_config->get_boolean($section . '.enabled');
$disabled = $this->is_sealed($section) || !$section_enabled;
if (!$disabled)
echo '<input type="hidden" name="' . $option_id . '" value="0" />';
echo '<label>';
echo '<input class="enabled" type="checkbox" name="' . $option_id .
'" value="1" ';
checked($this->_config->get_boolean($option_id), true);
if ($disabled)
echo 'disabled="disabled" ';
echo ' />';
}
protected function sealing_disabled($section) {
if ($this->is_sealed($section))
echo 'disabled="disabled" ';
}
/**
* Prints checkbox with admin config option value
*
* @param string $option_id
* @param boolean $disabled
*/
protected function checkbox_admin($option_id, $disabled = false) {
if (!$disabled)
$disabled = $this->_config->get_boolean('common.force_master');
$checked = $this->_config_admin->get_boolean($option_id) || $disabled;
if (!$disabled)
echo '<input type="hidden" name="' . $option_id . '" value="0" />';
echo '<label>';
$id = str_replace('.', '_', $option_id);
$class = $disabled ? 'disabled' : 'enabled';
echo '<input id="' . $id . '" class="' . $class . '" type="checkbox" name="' . $option_id .
'" value="1"';
checked($checked, true);
if ($disabled)
echo ' disabled="disabled"';
echo ' />';
}
protected abstract function view();
/**
* Check if memcache is available
*
* @param array $servers
* @return boolean
*/
function is_memcache_available($servers) {
static $results = array();
$key = md5(implode('', $servers));
if (!isset($results[$key])) {
w3_require_once(W3TC_LIB_W3_DIR . '/Cache/Memcached.php');
@$memcached = new W3_Cache_Memcached(array(
'servers' => $servers,
'persistant' => false
));
$test_string = sprintf('test_' . md5(time()));
$test_value = array('content' => $test_string);
$memcached->set($test_string, $test_value, 60);
$test_value = $memcached->get($test_string);
$results[$key] = ( $test_value['content'] == $test_string);
}
return $results[$key];
}
}
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