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65 lines
No EOL
2.5 KiB
PHP
65 lines
No EOL
2.5 KiB
PHP
<?php
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declare(strict_types=1);
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namespace JKingWeb\NewsSync\Db;
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class DriverSQLite3 implements Driver {
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use Common, CommonSQLite3;
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protected $db;
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private function __construct(\JKingWeb\NewsSync\Conf $conf, bool $install = false) {
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// normalize the path
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$path = $conf->dbSQLite3Path;
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$sep = \DIRECTORY_SEPARATOR;
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if(substr($path,-(strlen($sep))) != $sep) $path .= $sep;
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$mainfile = $path."newssync-main.db";
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$feedfile = $path."newssync-feeds.db";
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// if the files exists (or we're initializing the database), try to open it and set initial options
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try {
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$this->db = new \SQLite3($mainfile, ($install) ? \SQLITE3_OPEN_READWRITE | \SQLITE3_OPEN_CREATE : \SQLITE3_OPEN_READWRITE, $conf->dbSQLite3Key);
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$this->db->enableExceptions(true);
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$attach = "'".$this->db->escapeString($feedfile)."'";
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$this->exec("ATTACH DATABASE $attach AS feeds");
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$this->exec("PRAGMA main.jounral_mode = wal");
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$this->exec("PRAGMA feeds.jounral_mode = wal");
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$this->exec("PRAGMA foreign_keys = yes");
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} catch(\Throwable $e) {
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// if opening the database doesn't work, check various pre-conditions to find out what the problem might be
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foreach([$mainfile, $mainfile."-wal", $mainfile."-shm", $feedfile, $feedfile."-wal", $feedfile."-shm"] as $file) {
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if(!file_exists($file)) {
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if($install && !is_writable(dirname($file))) throw new Exception("fileUncreatable", dirname($file));
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throw new Exception("fileMissing", $file);
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}
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if(!is_readable($file) && !is_writable($file)) throw new Exception("fileUnusable", $file);
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if(!is_readable($file)) throw new Exception("fileUnreadable", $file);
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if(!is_writable($file)) throw new Exception("fileUnwritable", $file);
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}
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// otherwise the database is probably corrupt
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throw new Exception("fileCorrupt", $mainfile);
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}
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}
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public function __destruct() {
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$this->db->close();
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unset($this->db);
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}
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static public function create(\JKingWeb\NewsSync\Conf $conf, bool $install = false): Driver {
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// check to make sure required extensions are loaded
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if(class_exists("SQLite3")) {
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return new self($conf, $install);
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} else if(class_exists("PDO") && in_array("sqlite",\PDO::getAvailableDrivers())) {
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return new DriverSQLite3PDO($conf, $install);
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} else {
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throw new Exception("extMissing", self::driverName());
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}
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}
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public function unsafeQuery(string $query): Result {
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return new ResultSQLite3($this->db->query($query));
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}
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public function prepareArray(string $query, array $paramTypes): Statement {
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return new StatementSQLite3($query, $paramTypes);
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}
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} |