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Arsse/tests/lib/DatabaseInformation.php

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<?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\Test;
use JKingWeb\Arsse\Arsse;
use JKingWeb\Arsse\Db\Driver;
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class DatabaseInformation {
public $name;
public $backend;
public $pdo;
public $resultClass;
public $statementClass;
public $driverClass;
public $stringOutput;
public $interfaceConstructor;
public $truncateFunction;
public $razeFunction;
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protected static $data;
public function __construct(string $name) {
if (!isset(self::$data)) {
self::$data = self::getData();
}
if (!array_key_exists($name, self::$data)) {
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throw new \Exception("Invalid database driver name");
}
$this->name = $name;
foreach (self::$data[$name] as $key => $value) {
$this->$key = $value;
}
}
public static function list(): array {
if (!isset(self::$data)) {
self::$data = self::getData();
}
return array_keys(self::$data);
}
public static function listPDO(): array {
if (!isset(self::$data)) {
self::$data = self::getData();
}
return array_values(array_filter(array_keys(self::$data), function($k) {
return self::$data[$k]['pdo'];
}));
}
protected static function getData() {
$sqlite3TableList = function($db): array {
$listTables = "SELECT name from sqlite_master where type = 'table' and name like 'arsse_%'";
if ($db instanceof Driver) {
$tables = $db->query($listTables)->getAll();
$tables = sizeof($tables) ? array_column($tables, "name") : [];
} elseif ($db instanceof \PDO) {
retry:
try {
$tables = $db->query($listTables)->fetchAll(\PDO::FETCH_ASSOC);
} catch (\PDOException $e) {
goto retry;
}
$tables = sizeof($tables) ? array_column($tables, "name") : [];
} else {
$tables = [];
$result = $db->query($listTables);
while ($r = $result->fetchArray(\SQLITE3_ASSOC)) {
$tables[] = $r['name'];
}
$result->finalize();
}
return $tables;
};
$sqlite3TruncateFunction = function($db, array $afterStatements = []) use ($sqlite3TableList) {
// rollback any pending transaction
try {
$db->exec("ROLLBACK");
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} catch (\Throwable $e) {
}
foreach ($sqlite3TableList($db) as $table) {
if ($table === "arsse_meta") {
$db->exec("DELETE FROM $table where key <> 'schema_version'");
} else {
$db->exec("DELETE FROM $table");
}
}
foreach ($afterStatements as $st) {
$db->exec($st);
}
};
$sqlite3RazeFunction = function($db, array $afterStatements = []) use ($sqlite3TableList) {
// rollback any pending transaction
try {
$db->exec("ROLLBACK");
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} catch (\Throwable $e) {
}
$db->exec("PRAGMA foreign_keys=0");
foreach ($sqlite3TableList($db) as $table) {
$db->exec("DROP TABLE IF EXISTS $table");
}
$db->exec("PRAGMA user_version=0");
$db->exec("PRAGMA foreign_keys=1");
foreach ($afterStatements as $st) {
$db->exec($st);
}
};
$pgObjectList = function($db): array {
$listObjects = "SELECT table_name as name, 'TABLE' as type from information_schema.tables where table_schema = current_schema() and table_name like 'arsse_%' union SELECT collation_name as name, 'COLLATION' as type from information_schema.collations where collation_schema = current_schema()";
if ($db instanceof Driver) {
return $db->query($listObjects)->getAll();
} elseif ($db instanceof \PDO) {
return $db->query($listObjects)->fetchAll(\PDO::FETCH_ASSOC);
} else {
$r = @pg_query($db, $listObjects);
$out = $r ? pg_fetch_all($r) : false;
return $out ? $out : [];
}
};
$pgExecFunction = function($db, $q) {
if ($db instanceof Driver) {
$db->exec($q);
} elseif ($db instanceof \PDO) {
$db->exec($q);
} else {
pg_query($db, $q);
}
};
$pgTruncateFunction = function($db, array $afterStatements = []) use ($pgObjectList, $pgExecFunction) {
// rollback any pending transaction
try {
@$pgExecFunction($db, "ROLLBACK");
} catch (\Throwable $e) {
}
foreach ($pgObjectList($db) as $obj) {
if ($obj['type'] !== "TABLE") {
continue;
} elseif ($obj['name'] === "arsse_meta") {
$pgExecFunction($db, "DELETE FROM {$obj['name']} where key <> 'schema_version'");
} else {
$pgExecFunction($db, "TRUNCATE TABLE {$obj['name']} restart identity cascade");
}
}
foreach ($afterStatements as $st) {
$pgExecFunction($db, $st);
}
};
$pgRazeFunction = function($db, array $afterStatements = []) use ($pgObjectList, $pgExecFunction) {
// rollback any pending transaction
try {
$pgExecFunction($db, "ROLLBACK");
} catch (\Throwable $e) {
}
foreach ($pgObjectList($db) as $obj) {
$pgExecFunction($db, "DROP {$obj['type']} IF EXISTS {$obj['name']} cascade");
}
foreach ($afterStatements as $st) {
$pgExecFunction($db, $st);
}
};
$mysqlTableList = function($db): array {
$listTables = "SELECT table_name as name from information_schema.tables where table_schema = database() and table_name like 'arsse_%'";
if ($db instanceof Driver) {
$tables = $db->query($listTables)->getAll();
} elseif ($db instanceof \PDO) {
$tables = $db->query($listTables)->fetchAll(\PDO::FETCH_ASSOC);
} else {
$tables = $db->query($listTables)->fetch_all(\MYSQLI_ASSOC);
}
$tables = sizeof($tables) ? array_column($tables, "name") : [];
return $tables;
};
$mysqlTruncateFunction = function($db, array $afterStatements = []) use ($mysqlTableList) {
// rollback any pending transaction
try {
$db->query("UNLOCK TABLES; ROLLBACK");
} catch (\Throwable $e) {
}
foreach ($mysqlTableList($db) as $table) {
if ($table === "arsse_meta") {
$db->query("DELETE FROM $table where `key` <> 'schema_version'");
} else {
$db->query("DELETE FROM $table");
}
$db->query("ALTER TABLE $table auto_increment = 1");
}
foreach ($afterStatements as $st) {
$db->query($st);
}
};
$mysqlRazeFunction = function($db, array $afterStatements = []) use ($mysqlTableList) {
// rollback any pending transaction
try {
$db->query("UNLOCK TABLES; ROLLBACK");
} catch (\Throwable $e) {
}
foreach ($mysqlTableList($db) as $table) {
$db->query("DROP TABLE IF EXISTS $table");
}
foreach ($afterStatements as $st) {
$db->query($st);
}
};
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return [
'SQLite 3' => [
'pdo' => false,
'backend' => "SQLite 3",
'statementClass' => \JKingWeb\Arsse\Db\SQLite3\Statement::class,
'resultClass' => \JKingWeb\Arsse\Db\SQLite3\Result::class,
'driverClass' => \JKingWeb\Arsse\Db\SQLite3\Driver::class,
'stringOutput' => false,
'interfaceConstructor' => function() {
try {
$d = new \SQLite3(Arsse::$conf->dbSQLite3File);
} catch (\Throwable $e) {
return;
}
$d->enableExceptions(true);
return $d;
},
'truncateFunction' => $sqlite3TruncateFunction,
'razeFunction' => $sqlite3RazeFunction,
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],
'PDO SQLite 3' => [
'pdo' => true,
'backend' => "SQLite 3",
'statementClass' => \JKingWeb\Arsse\Db\SQLite3\PDOStatement::class,
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'resultClass' => \JKingWeb\Arsse\Db\PDOResult::class,
'driverClass' => \JKingWeb\Arsse\Db\SQLite3\PDODriver::class,
'stringOutput' => true,
'interfaceConstructor' => function() {
try {
$d = new \PDO("sqlite:".Arsse::$conf->dbSQLite3File, "", "", [\PDO::ATTR_ERRMODE => \PDO::ERRMODE_EXCEPTION]);
$d->exec("PRAGMA busy_timeout=0");
return $d;
} catch (\Throwable $e) {
return;
}
},
'truncateFunction' => $sqlite3TruncateFunction,
'razeFunction' => $sqlite3RazeFunction,
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],
'PostgreSQL' => [
'pdo' => false,
'backend' => "PostgreSQL",
'statementClass' => \JKingWeb\Arsse\Db\PostgreSQL\Statement::class,
'resultClass' => \JKingWeb\Arsse\Db\PostgreSQL\Result::class,
'driverClass' => \JKingWeb\Arsse\Db\PostgreSQL\Driver::class,
'stringOutput' => true,
'interfaceConstructor' => function() {
$connString = \JKingWeb\Arsse\Db\PostgreSQL\Driver::makeConnectionString(false, Arsse::$conf->dbPostgreSQLUser, Arsse::$conf->dbPostgreSQLPass, Arsse::$conf->dbPostgreSQLDb, Arsse::$conf->dbPostgreSQLHost, Arsse::$conf->dbPostgreSQLPort, "");
if ($d = @pg_connect($connString, \PGSQL_CONNECT_FORCE_NEW)) {
foreach (\JKingWeb\Arsse\Db\PostgreSQL\Driver::makeSetupQueries(Arsse::$conf->dbPostgreSQLSchema) as $q) {
pg_query($d, $q);
}
return $d;
} else {
return;
}
},
'truncateFunction' => $pgTruncateFunction,
'razeFunction' => $pgRazeFunction,
],
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'PDO PostgreSQL' => [
'pdo' => true,
'backend' => "PostgreSQL",
'statementClass' => \JKingWeb\Arsse\Db\PostgreSQL\PDOStatement::class,
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'resultClass' => \JKingWeb\Arsse\Db\PDOResult::class,
'driverClass' => \JKingWeb\Arsse\Db\PostgreSQL\PDODriver::class,
'stringOutput' => false,
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'interfaceConstructor' => function() {
$connString = \JKingWeb\Arsse\Db\PostgreSQL\Driver::makeConnectionString(true, Arsse::$conf->dbPostgreSQLUser, Arsse::$conf->dbPostgreSQLPass, Arsse::$conf->dbPostgreSQLDb, Arsse::$conf->dbPostgreSQLHost, Arsse::$conf->dbPostgreSQLPort, "");
try {
$d = new \PDO("pgsql:".$connString, Arsse::$conf->dbPostgreSQLUser, Arsse::$conf->dbPostgreSQLPass, [\PDO::ATTR_ERRMODE => \PDO::ERRMODE_EXCEPTION]);
} catch (\Throwable $e) {
return;
}
foreach (\JKingWeb\Arsse\Db\PostgreSQL\PDODriver::makeSetupQueries(Arsse::$conf->dbPostgreSQLSchema) as $q) {
$d->exec($q);
}
return $d;
},
'truncateFunction' => $pgTruncateFunction,
'razeFunction' => $pgRazeFunction,
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],
'PDO MySQL' => [
'pdo' => true,
'backend' => "MySQL",
'statementClass' => \JKingWeb\Arsse\Db\MySQL\PDOStatement::class,
'resultClass' => \JKingWeb\Arsse\Db\PDOResult::class,
'driverClass' => \JKingWeb\Arsse\Db\MySQL\PDODriver::class,
'stringOutput' => true,
'interfaceConstructor' => function() {
try {
$dsn = [];
$params = [
'charset' => "utf8mb4",
'host' => Arsse::$conf->dbMySQLHost,
'port' => Arsse::$conf->dbMySQLPort,
'dbname' => Arsse::$conf->dbMySQLDb,
];
foreach ($params as $k => $v) {
$dsn[] = "$k=$v";
}
$dsn = "mysql:".implode(";", $dsn);
return new \PDO($dsn, Arsse::$conf->dbMySQLUser, Arsse::$conf->dbMySQLPass, [\PDO::ATTR_ERRMODE => \PDO::ERRMODE_EXCEPTION, \PDO::MYSQL_ATTR_MULTI_STATEMENTS => false, \PDO::MYSQL_ATTR_INIT_COMMAND => "SET sql_mode = '".\JKingWeb\Arsse\Db\MySQL\PDODriver::SQL_MODE."'",]);
} catch (\Throwable $e) {
return;
}
},
'truncateFunction' => $mysqlTruncateFunction,
'razeFunction' => $mysqlRazeFunction,
],
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];
}
}