/**
* Instantiate the Redis class.
*
* Instantiates the Redis class.
*
* @param null $persistent_id To create an instance that persists between requests, use persistent_id to specify a unique ID for the instance.
*/
public function __construct()
{
global $blog_id, $table_prefix;
$redis = array('scheme' => 'tcp', 'host' => '127.0.0.1', 'port' => 6379);
if (defined('WP_REDIS_SCHEME')) {
$redis['scheme'] = WP_REDIS_SCHEME;
}
if (defined('WP_REDIS_HOST')) {
$redis['host'] = WP_REDIS_HOST;
}
if (defined('WP_REDIS_PORT')) {
$redis['port'] = WP_REDIS_PORT;
}
if (defined('WP_REDIS_PATH')) {
$redis['path'] = WP_REDIS_PATH;
}
if (defined('WP_REDIS_PASSWORD')) {
$redis['password'] = WP_REDIS_PASSWORD;
}
if (defined('WP_REDIS_DATABASE')) {
$redis['database'] = WP_REDIS_DATABASE;
}
$redis_client = defined('WP_REDIS_CLIENT') ? WP_REDIS_CLIENT : null;
if (class_exists('Redis') && strcasecmp('predis', $redis_client) !== 0) {
$redis_client = defined('HHVM_VERSION') ? 'hhvm' : 'pecl';
} else {
$redis_client = 'predis';
}
try {
if (strcasecmp('hhvm', $redis_client) === 0) {
$this->redis_client = sprintf('HHVM %s Extension', HHVM_VERSION);
$this->redis = new Redis();
// adjust host and port, if the scheme is `unix`
if (strcasecmp('unix', $redis['scheme']) === 0) {
$redis['host'] = 'unix://' . $redis['path'];
$redis['port'] = 0;
}
if (!$this->redis->connect($redis['host'], $redis['port'])) {
throw new Exception();
}
if (isset($redis['password'])) {
$this->redis->auth($redis['password']);
}
if (isset($redis['database'])) {
$this->redis->select($redis['database']);
}
$this->redis_connected = true;
} elseif (strcasecmp('pecl', $redis_client) === 0) {
$this->redis_client = 'PCEL Extension';
$this->redis = new Redis();
if (strcasecmp('unix', $redis['scheme']) === 0) {
$this->redis->connect($redis['path']);
} else {
$this->redis->connect($redis['host'], $redis['port']);
}
if (isset($redis['password'])) {
$this->redis->auth($redis['password']);
}
if (isset($redis['database'])) {
$this->redis->select($redis['database']);
}
$this->redis_connected = true;
} else {
$this->redis_client = 'Predis';
// require PHP 5.4 or greater
if (version_compare(PHP_VERSION, '5.4.0', '<')) {
throw new Exception();
}
// check if bundled Predis library exists
if (!realpath(dirname(__FILE__) . '/plugins/redis-cache/includes/predis.php')) {
throw new Exception();
}
require_once dirname(__FILE__) . '/plugins/redis-cache/includes/predis.php';
Predis\Autoloader::register();
$this->redis = new Predis\Client($redis);
$this->redis->connect();
$this->redis_connected = true;
$this->redis_client .= ' v' . Predis\Client::VERSION;
}
} catch (Exception $exception) {
// When Redis is unavailable, fall back to the internal back by forcing all groups to be "no redis" groups
$this->no_redis_groups = array_unique(array_merge($this->no_redis_groups, $this->global_groups));
$this->redis_connected = false;
}
/**
* This approach is borrowed from Sivel and Boren. Use the salt for easy cache invalidation and for
* multi single WP installs on the same server.
*/
if (!defined('WP_CACHE_KEY_SALT')) {
define('WP_CACHE_KEY_SALT', '');
}
// Assign global and blog prefixes for use with keys
if (function_exists('is_multisite')) {
$this->global_prefix = is_multisite() || defined('CUSTOM_USER_TABLE') && defined('CUSTOM_USER_META_TABLE') ? '' : $table_prefix;
$this->blog_prefix = (is_multisite() ? $blog_id : $table_prefix) . ':';
}
}
function redisLink() {
global $redisHost, $redisKey;
static $r = false;
if ($r) return $r;
if($redisHost && $redisKey) { // Host and Key loaded from Environment Variable
$r = new Predis\Client($redisHost);
$r->auth($redisKey);
} else {
$r = new Predis\Client();
}
return $r;
}
function getlink()
{
$client = new Predis\Client(['scheme' => 'tcp', 'host' => '127.0.0.1', 'port' => 6379]);
$client->auth('jakehu');
return $client;
}
}
$server = $config['servers'][$i];
$server['id'] = $i;
if (isset($login, $login['servers'])) {
if (array_search($i, $login['servers']) === false) {
die('You are not allowed to access this database.');
}
foreach ($config['servers'] as $key => $ignore) {
if (array_search($key, $login['servers']) === false) {
unset($config['servers'][$key]);
}
}
}
if (!isset($server['db'])) {
$server['db'] = 0;
}
if (!isset($server['filter'])) {
$server['filter'] = '*';
}
// Setup a connection to Redis.
$redis = new Predis\Client('tcp://' . $server['host'] . ':' . $server['port']);
if (isset($server['auth'])) {
if (!$redis->auth($server['auth'])) {
die('ERROR: Authentication failed (' . $server['host'] . ':' . $server['port'] . ')');
}
}
if ($server['db'] != 0) {
if (!$redis->select($server['db'])) {
die('ERROR: Selecting database failed (' . $server['host'] . ':' . $server['port'] . ',' . $server['db'] . ')');
}
}
/**
* Instantiate the Redis class.
*
* Instantiates the Redis class.
*
* @param null $persistent_id To create an instance that persists between requests, use persistent_id to specify a unique ID for the instance.
*/
public function __construct()
{
global $blog_id, $table_prefix;
// General Redis settings
$redis = array('host' => '127.0.0.1', 'port' => 6379);
if (defined('WP_REDIS_BACKEND_HOST') && WP_REDIS_BACKEND_HOST) {
$redis['host'] = WP_REDIS_BACKEND_HOST;
}
if (defined('WP_REDIS_BACKEND_PORT') && WP_REDIS_BACKEND_PORT) {
$redis['port'] = WP_REDIS_BACKEND_PORT;
}
if (defined('WP_REDIS_BACKEND_AUTH') && WP_REDIS_BACKEND_AUTH) {
$redis['auth'] = WP_REDIS_BACKEND_AUTH;
}
if (defined('WP_REDIS_BACKEND_DB') && WP_REDIS_BACKEND_DB) {
$redis['database'] = WP_REDIS_BACKEND_DB;
}
try {
$params = ['tcp://redis-master:6379?alias=master', 'tcp://localhost:6379?alias=slave'];
$options = ['replication' => true];
$this->redis = new Predis\Client($params, $options);
if (isset($redis['auth'])) {
$this->redis->auth($redis['auth']);
}
if (isset($redis['database'])) {
$this->redis->select($redis['database']);
}
$this->redis_connected = true;
} catch (Predis\PredisException $e) {
// When Redis is unavailable, fall back to the internal back by forcing all groups to be "no redis" groups
$this->no_redis_groups = array_unique(array_merge($this->no_redis_groups, $this->global_groups));
$this->redis_connected = false;
}
/**
* This approach is borrowed from Sivel and Boren. Use the salt for easy cache invalidation and for
* multi single WP installs on the same server.
*/
if (!defined('WP_CACHE_KEY_SALT')) {
define('WP_CACHE_KEY_SALT', '');
}
// Assign global and blog prefixes for use with keys
if (function_exists('is_multisite')) {
$this->global_prefix = is_multisite() || defined('CUSTOM_USER_TABLE') && defined('CUSTOM_USER_META_TABLE') ? '' : $table_prefix;
$this->blog_prefix = (is_multisite() ? $blog_id : $table_prefix) . ':';
}
}
/**
* Instantiate the Redis class.
*
* Instantiates the Redis class.
*
* @param null $persistent_id To create an instance that persists between requests, use persistent_id to specify a unique ID for the instance.
*/
public function __construct()
{
global $blog_id, $table_prefix;
// General Redis settings
$redis = array('host' => '127.0.0.1', 'port' => 6379);
if (defined('WP_REDIS_BACKEND_HOST') && WP_REDIS_BACKEND_HOST) {
$redis['host'] = WP_REDIS_BACKEND_HOST;
}
if (defined('WP_REDIS_BACKEND_PORT') && WP_REDIS_BACKEND_PORT) {
$redis['port'] = WP_REDIS_BACKEND_PORT;
}
if (defined('WP_REDIS_BACKEND_AUTH') && WP_REDIS_BACKEND_AUTH) {
$redis['auth'] = WP_REDIS_BACKEND_AUTH;
}
if (defined('WP_REDIS_BACKEND_DB') && WP_REDIS_BACKEND_DB) {
$redis['database'] = WP_REDIS_BACKEND_DB;
}
if (defined('WP_REDIS_SERIALIZER')) {
$redis['serializer'] = WP_REDIS_SERIALIZER;
} else {
$redis['serializer'] = Redis::SERIALIZER_PHP;
}
// Use Redis PECL library.
try {
$this->redis = new Redis();
$this->redis->connect($redis['host'], $redis['port']);
$this->redis->setOption(Redis::OPT_SERIALIZER, $redis['serializer']);
if (isset($redis['auth'])) {
$this->redis->auth($redis['auth']);
}
if (isset($redis['database'])) {
$this->redis->select($redis['database']);
}
$this->redis_connected = true;
} catch (RedisException $e) {
// When Redis is unavailable, fall back to the internal back by forcing all groups to be "no redis" groups
$this->no_redis_groups = array_unique(array_merge($this->no_redis_groups, $this->global_groups));
$this->redis_connected = false;
}
/**
* This approach is borrowed from Sivel and Boren. Use the salt for easy cache invalidation and for
* multi single WP installs on the same server.
*/
if (!defined('WP_CACHE_KEY_SALT')) {
define('WP_CACHE_KEY_SALT', '');
}
// Assign global and blog prefixes for use with keys
if (function_exists('is_multisite')) {
$this->global_prefix = is_multisite() || defined('CUSTOM_USER_TABLE') && defined('CUSTOM_USER_META_TABLE') ? '' : $table_prefix;
$this->blog_prefix = (is_multisite() ? $blog_id : $table_prefix) . ':';
}
}
