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<?php |
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namespace fkooman\VPN\Server\Log; |
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use PDO; |
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use RuntimeException; |
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/** |
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* With this we store events from client-connect and client-disconnect |
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* from the OpenVPN server. |
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*/ |
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class ConnectionLog |
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{ |
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/** @var PDO */ |
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private $db; |
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/** @var string */ |
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private $prefix; |
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public function __construct(PDO $db, $prefix = '') |
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{ |
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$db->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION); |
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$this->db = $db; |
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$this->prefix = $prefix; |
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} |
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/** |
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* Handle connecting client. |
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* |
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* @param array $v the environment variables from the connect event |
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* |
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* @throws RuntimeException if the insert fails |
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*/ |
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public function connect(array $v) |
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{ |
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$stmt = $this->db->prepare( |
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sprintf( |
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'INSERT INTO %s ( |
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common_name, |
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time_unix, |
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v4, |
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v6 |
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) |
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VALUES( |
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:common_name, |
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:time_unix, |
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:v4, |
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:v6 |
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)', |
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$this->prefix.'connections' |
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) |
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); |
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$stmt->bindValue(':common_name', $v['common_name'], PDO::PARAM_STR); |
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$stmt->bindValue(':time_unix', intval($v['time_unix']), PDO::PARAM_INT); |
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$stmt->bindValue(':v4', $v['v4'], PDO::PARAM_STR); |
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$stmt->bindValue(':v6', $v['v6'], PDO::PARAM_STR); |
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$stmt->execute(); |
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if (1 !== $stmt->rowCount()) { |
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throw new RuntimeException('unable to insert'); |
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} |
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} |
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/** |
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* Handle disconnecting client. |
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* |
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* @param array $v the environment variables from the disconnect event |
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* |
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* @return bool whether the update succeeded, returns false if there is no |
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* matching 'connect' in the database |
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*/ |
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public function disconnect(array $v) |
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{ |
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$stmt = $this->db->prepare( |
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sprintf( |
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'UPDATE %s |
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SET bytes_received = :bytes_received, bytes_sent = :bytes_sent, disconnect_time_unix = :disconnect_time_unix |
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WHERE common_name = :common_name |
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AND time_unix = :time_unix |
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AND v4 = :v4 |
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AND v6 = :v6', |
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$this->prefix.'connections' |
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) |
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); |
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$stmt->bindValue(':common_name', $v['common_name'], PDO::PARAM_STR); |
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$stmt->bindValue(':time_unix', intval($v['time_unix']), PDO::PARAM_INT); |
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$stmt->bindValue(':v4', $v['v4'], PDO::PARAM_STR); |
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$stmt->bindValue(':v6', $v['v6'], PDO::PARAM_STR); |
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$stmt->bindValue(':bytes_received', intval($v['bytes_received']), PDO::PARAM_INT); |
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$stmt->bindValue(':bytes_sent', intval($v['bytes_sent']), PDO::PARAM_INT); |
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$stmt->bindValue(':disconnect_time_unix', intval($v['disconnect_time_unix']), PDO::PARAM_INT); |
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$stmt->execute(); |
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return 1 === $stmt->rowCount(); |
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} |
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public function getConnectionHistory($minUnix, $maxUnix) |
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{ |
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$stmt = $this->db->prepare( |
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sprintf( |
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'SELECT * |
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FROM %s |
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WHERE |
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disconnect_time_unix NOT NULL |
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AND |
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disconnect_time_unix >= :min_unix |
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AND |
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disconnect_time_unix <= :max_unix |
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ORDER BY disconnect_time_unix DESC', |
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$this->prefix.'connections' |
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) |
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); |
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$stmt->bindValue(':min_unix', $minUnix, PDO::PARAM_INT); |
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$stmt->bindValue(':max_unix', $maxUnix, PDO::PARAM_INT); |
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$stmt->execute(); |
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return $stmt->fetchAll(PDO::FETCH_ASSOC); |
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} |
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public static function createTableQueries($prefix) |
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{ |
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$query = array( |
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sprintf( |
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'CREATE TABLE IF NOT EXISTS %s ( |
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common_name VARCHAR(255) NOT NULL, |
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time_unix INTEGER NOT NULL, |
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v4 VARCHAR(255) NOT NULL, |
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v6 VARCHAR(255) NOT NULL, |
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bytes_received INTEGER DEFAULT NULL, |
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bytes_sent INTEGER DEFAULT NULL, |
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disconnect_time_unix INTEGER DEFAULT NULL |
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)', |
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$prefix.'connections' |
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), |
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); |
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return $query; |
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} |
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public function initDatabase() |
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{ |
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$queries = self::createTableQueries($this->prefix); |
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foreach ($queries as $q) { |
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$this->db->query($q); |
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} |
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$tables = array('connections'); |
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foreach ($tables as $t) { |
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// make sure the tables are empty |
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$this->db->query( |
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sprintf( |
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'DELETE FROM %s', |
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$this->prefix.$t |
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) |
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); |
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} |
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160
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} |
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161
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} |
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162
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eduVPN /
vpn-server-api
