mirror of
https://code.mensbeam.com/MensBeam/Arsse.git
synced 2024-12-24 09:32:40 +00:00
229 lines
8 KiB
PHP
229 lines
8 KiB
PHP
<?php
|
|
/** @license MIT
|
|
* Copyright 2017 J. King, Dustin Wilson et al.
|
|
* See LICENSE and AUTHORS files for details */
|
|
|
|
declare(strict_types=1);
|
|
namespace JKingWeb\Arsse\Db\MySQL;
|
|
|
|
use JKingWeb\Arsse\Arsse;
|
|
use JKingWeb\Arsse\Db\Exception;
|
|
|
|
class Driver extends \JKingWeb\Arsse\Db\AbstractDriver {
|
|
use ExceptionBuilder;
|
|
|
|
const SQL_MODE = "ANSI_QUOTES,HIGH_NOT_PRECEDENCE,NO_BACKSLASH_ESCAPES,NO_ENGINE_SUBSTITUTION,PIPES_AS_CONCAT,STRICT_ALL_TABLES";
|
|
const TRANSACTIONAL_LOCKS = false;
|
|
|
|
/** @var \mysqli */
|
|
protected $db;
|
|
protected $transStart = 0;
|
|
protected $packetSize = 4194304;
|
|
|
|
public function __construct() {
|
|
// check to make sure required extension is loaded
|
|
if (!static::requirementsMet()) {
|
|
throw new Exception("extMissing", static::driverName()); // @codeCoverageIgnore
|
|
}
|
|
$host = strtolower(!strlen(Arsse::$conf->dbMySQLHost) ? "localhost" : Arsse::$conf->dbMySQLHost);
|
|
$socket = strlen(Arsse::$conf->dbMySQLSocket) ? Arsse::$conf->dbMySQLSocket : ini_get("mysqli.default_socket");
|
|
$user = Arsse::$conf->dbMySQLUser;
|
|
$pass = Arsse::$conf->dbMySQLPass;
|
|
$port = Arsse::$conf->dbMySQLPort;
|
|
$db = Arsse::$conf->dbMySQLDb;
|
|
// make the connection
|
|
$this->makeConnection($db, $user, $pass, $host, $port, $socket);
|
|
// set session variables
|
|
foreach (static::makeSetupQueries() as $q) {
|
|
$this->exec($q);
|
|
}
|
|
// get the maximum packet size; parameter strings larger than this size need to be chunked
|
|
$this->packetSize = (int) $this->query("SELECT variable_value from performance_schema.session_variables where variable_name = 'max_allowed_packet'")->getValue();
|
|
}
|
|
|
|
public static function makeSetupQueries(): array {
|
|
return [
|
|
"SET sql_mode = '".self::SQL_MODE."'",
|
|
"SET time_zone = '+00:00'",
|
|
"SET lock_wait_timeout = ".self::lockTimeout(),
|
|
"SET max_execution_time = ".ceil(Arsse::$conf->dbTimeoutExec * 1000),
|
|
];
|
|
}
|
|
|
|
/** @codeCoverageIgnore */
|
|
public static function create(): \JKingWeb\Arsse\Db\Driver {
|
|
if (self::requirementsMet()) {
|
|
return new self;
|
|
} elseif (PDODriver::requirementsMet()) {
|
|
return new PDODriver;
|
|
} else {
|
|
throw new Exception("extMissing", self::driverName());
|
|
}
|
|
}
|
|
|
|
public static function schemaID(): string {
|
|
return "MySQL";
|
|
}
|
|
|
|
public function charsetAcceptable(): bool {
|
|
return true;
|
|
}
|
|
|
|
public function schemaVersion(): int {
|
|
if ($this->query("SELECT count(*) from information_schema.tables where table_name = 'arsse_meta'")->getValue()) {
|
|
return (int) $this->query("SELECT value from arsse_meta where `key` = 'schema_version'")->getValue();
|
|
} else {
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
public function sqlToken(string $token): string {
|
|
switch (strtolower($token)) {
|
|
case "nocase":
|
|
return '"utf8mb4_unicode_ci"';
|
|
default:
|
|
return $token;
|
|
}
|
|
}
|
|
|
|
public function savepointCreate(bool $lock = false): int {
|
|
if (!$this->transStart && !$lock) {
|
|
$this->exec("BEGIN");
|
|
$this->transStart = parent::savepointCreate($lock);
|
|
return $this->transStart;
|
|
} else {
|
|
return parent::savepointCreate($lock);
|
|
}
|
|
}
|
|
|
|
public function savepointRelease(int $index = null): bool {
|
|
$index = $index ?? $this->transDepth;
|
|
$out = parent::savepointRelease($index);
|
|
if ($index == $this->transStart) {
|
|
$this->exec("COMMIT");
|
|
$this->transStart = 0;
|
|
}
|
|
return $out;
|
|
}
|
|
|
|
public function savepointUndo(int $index = null): bool {
|
|
$index = $index ?? $this->transDepth;
|
|
$out = parent::savepointUndo($index);
|
|
if ($index == $this->transStart) {
|
|
$this->exec("ROLLBACK");
|
|
$this->transStart = 0;
|
|
}
|
|
return $out;
|
|
}
|
|
|
|
protected function lock(): bool {
|
|
$tables = $this->query("SELECT table_name as name from information_schema.tables where table_schema = database() and table_name like 'arsse_%'")->getAll();
|
|
if ($tables) {
|
|
$tables = array_column($tables, "name");
|
|
$tables = array_map(function($table) {
|
|
$table = str_replace('"', '""', $table);
|
|
return "\"$table\" write";
|
|
}, $tables);
|
|
$tables = implode(", ", $tables);
|
|
try {
|
|
$this->exec("SET lock_wait_timeout = 1; LOCK TABLES $tables");
|
|
} finally {
|
|
$this->exec("SET lock_wait_timeout = ".self::lockTimeout());
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
protected function unlock(bool $rollback = false): bool {
|
|
$this->exec("UNLOCK TABLES");
|
|
return true;
|
|
}
|
|
|
|
protected static function lockTimeout(): int {
|
|
return (int) max(min(ceil(Arsse::$conf->dbTimeoutLock ?? 31536000), 31536000), 1);
|
|
}
|
|
|
|
public function __destruct() {
|
|
if (isset($this->db)) {
|
|
$this->db->close();
|
|
unset($this->db);
|
|
}
|
|
}
|
|
|
|
public static function driverName(): string {
|
|
return Arsse::$lang->msg("Driver.Db.MySQL.Name");
|
|
}
|
|
|
|
public static function requirementsMet(): bool {
|
|
return class_exists("mysqli");
|
|
}
|
|
|
|
protected function makeConnection(string $db, string $user, string $password, string $host, int $port, string $socket) {
|
|
$this->db = mysqli_init();
|
|
$this->db->options(\MYSQLI_OPT_CONNECT_TIMEOUT, ceil(Arsse::$conf->dbTimeoutConnect));
|
|
@$this->db->real_connect($host, $user, $password, $db, $port, $socket);
|
|
if ($this->db->connect_errno) {
|
|
list($excClass, $excMsg, $excData) = $this->buildConnectionException($this->db->connect_errno, $this->db->connect_error);
|
|
throw new $excClass($excMsg, $excData);
|
|
}
|
|
$this->db->set_charset("utf8mb4");
|
|
}
|
|
|
|
public function exec(string $query): bool {
|
|
$this->dispatch($query, true);
|
|
return true;
|
|
}
|
|
|
|
protected function dispatch(string $query, bool $multi = false) {
|
|
if ($multi) {
|
|
$this->db->multi_query($query);
|
|
} else {
|
|
$this->db->real_query($query);
|
|
}
|
|
$e = null;
|
|
do {
|
|
if ($this->db->sqlstate !== "00000") {
|
|
if ($this->db->sqlstate === "HY000") {
|
|
list($excClass, $excMsg, $excData) = $this->buildEngineException($this->db->errno, $this->db->error);
|
|
} else {
|
|
list($excClass, $excMsg, $excData) = $this->buildStandardException($this->db->sqlstate, $this->db->error);
|
|
}
|
|
$e = new $excClass($excMsg, $excData, $e);
|
|
}
|
|
$r = $this->db->store_result();
|
|
} while ($this->db->more_results() && $this->db->next_result());
|
|
if ($e) {
|
|
throw $e;
|
|
} else {
|
|
return $r;
|
|
}
|
|
}
|
|
|
|
public function query(string $query): \JKingWeb\Arsse\Db\Result {
|
|
$r = $this->dispatch($query);
|
|
$rows = (int) $this->db->affected_rows;
|
|
$id = (int) $this->db->insert_id;
|
|
return new Result($r, [$rows, $id]);
|
|
}
|
|
|
|
public function prepareArray(string $query, array $paramTypes): \JKingWeb\Arsse\Db\Statement {
|
|
return new Statement($this->db, $query, $paramTypes, $this->packetSize);
|
|
}
|
|
|
|
public function literalString(string $str): string {
|
|
return "'".$this->db->real_escape_string($str)."'";
|
|
}
|
|
|
|
public function maintenance(): bool {
|
|
// with MySQL each table must be analyzed separately, so we first have to get a list of tables
|
|
foreach ($this->query("SHOW TABLES like 'arsse\\_%'") as $table) {
|
|
$table = array_pop($table);
|
|
if (!preg_match("/^arsse_[a-z_]+$/", $table)) {
|
|
// table is not one of ours
|
|
continue; // @codeCoverageIgnore
|
|
}
|
|
$this->query("ANALYZE TABLE $table");
|
|
}
|
|
return true;
|
|
}
|
|
}
|