@ -18,32 +18,35 @@ class Driver extends \JKingWeb\Arsse\Db\AbstractDriver {
public function __construct(bool $install = false) {
// check to make sure required extension is loaded
if(!class_exists("SQLite3")) throw new Exception("extMissing", self::driverName());
if(!class_exists("SQLite3")) {
throw new Exception("extMissing", self::driverName());
}
$file = Arsse::$conf->dbSQLite3File;
// if the file exists (or we're initializing the database), try to open it
try {
$this->db = $this->makeConnection($file, ($install) ? \SQLITE3_OPEN_READWRITE | \SQLITE3_OPEN_CREATE : \SQLITE3_OPEN_READWRITE, Arsse::$conf->dbSQLite3Key);
$this->db = $this->makeConnection($file, \SQLITE3_OPEN_CREATE | \SQLITE3_OPEN_READWRITE, Arsse::$conf->dbSQLite3Key);
// set initial options
$this->db->enableExceptions(true);
$this->exec("PRAGMA journal_mode = wal");
$this->exec("PRAGMA foreign_keys = yes");
} catch(\Throwable $e) {
// if opening the database doesn't work, check various pre-conditions to find out what the problem might be
if(!file_exists($file)) {
if($install & & !is_writable(dirname($file))) throw new Exception("fileUncreatable", dirname($file));
if($install & & !is_writable(dirname($file))) {
throw new Exception("fileUncreatable", dirname($file));
}
throw new Exception("fileMissing", $file);
}
if(!is_readable($file) & & !is_writable($file)) throw new Exception("fileUnusable", $file);
if(!is_readable($file)) throw new Exception("fileUnreadable", $file);
if(!is_writable($file)) throw new Exception("fileUnwritable", $file);
if(!is_readable($file) & & !is_writable($file)) {
throw new Exception("fileUnusable", $file);
} else if(!is_readable($file)) {
throw new Exception("fileUnreadable", $file);
} else if(!is_writable($file)) {
throw new Exception("fileUnwritable", $file);
}
// otherwise the database is probably corrupt
throw new Exception("fileCorrupt", $mainfile);
}
try {
// set initial options
$this->db->enableExceptions(true);
$this->exec("PRAGMA journal_mode = wal");
$this->exec("PRAGMA foreign_keys = yes");
} catch(\Exception $e) {
list($excClass, $excMsg, $excData) = $this->exceptionBuild();
throw new $excClass($excMsg, $excData);
}
}
protected function makeConnection(string $file, int $opts, string $key) {
@ -66,8 +69,11 @@ class Driver extends \JKingWeb\Arsse\Db\AbstractDriver {
public function schemaUpdate(int $to): bool {
$ver = $this->schemaVersion();
if(!Arsse::$conf->dbAutoUpdate) throw new Exception("updateManual", ['version' => $ver, 'driver_name' => $this->driverName()]);
if($ver >= $to) throw new Exception("updateTooNew", ['difference' => ($ver - $to), 'current' => $ver, 'target' => $to, 'driver_name' => $this->driverName()]);
if(!Arsse::$conf->dbAutoUpdate) {
throw new Exception("updateManual", ['version' => $ver, 'driver_name' => $this->driverName()]);
} else if($ver >= $to) {
throw new Exception("updateTooNew", ['difference' => ($ver - $to), 'current' => $ver, 'target' => $to, 'driver_name' => $this->driverName()]);
}
$sep = \DIRECTORY_SEPARATOR;
$path = Arsse::$conf->dbSchemaBase.$sep."SQLite3".$sep;
// lock the database
@ -76,16 +82,23 @@ class Driver extends \JKingWeb\Arsse\Db\AbstractDriver {
$this->savepointCreate();
try {
$file = $path.$a.".sql";
if(!file_exists($file)) throw new Exception("updateFileMissing", ['file' => $file, 'driver_name' => $this->driverName(), 'current' => $a]);
if(!is_readable($file)) throw new Exception("updateFileUnreadable", ['file' => $file, 'driver_name' => $this->driverName(), 'current' => $a]);
if(!file_exists($file)) {
throw new Exception("updateFileMissing", ['file' => $file, 'driver_name' => $this->driverName(), 'current' => $a]);
} else if(!is_readable($file)) {
throw new Exception("updateFileUnreadable", ['file' => $file, 'driver_name' => $this->driverName(), 'current' => $a]);
}
$sql = @file_get_contents($file);
if($sql===false) throw new Exception("updateFileUnusable", ['file' => $file, 'driver_name' => $this->driverName(), 'current' => $a]);
if($sql===false) {
throw new Exception("updateFileUnusable", ['file' => $file, 'driver_name' => $this->driverName(), 'current' => $a]);
}
try {
$this->exec($sql);
} catch(\Throwable $e) {
throw new Exception("updateFileError", ['file' => $file, 'driver_name' => $this->driverName(), 'current' => $a, 'message' => $this->getError()]);
}
if($this->schemaVersion() != $a+1) throw new Exception("updateFileIncomplete", ['file' => $file, 'driver_name' => $this->driverName(), 'current' => $a]);
if($this->schemaVersion() != $a+1) {
throw new Exception("updateFileIncomplete", ['file' => $file, 'driver_name' => $this->driverName(), 'current' => $a]);
}
} catch(\Throwable $e) {
// undo any partial changes from the failed update
$this->savepointUndo();
