const fs = require("fs"); const { R } = require("redbean-node"); const { setSetting, setting } = require("./util-server"); const { debug, sleep } = require("../src/util"); const dayjs = require("dayjs"); class Database { static templatePath = "./db/kuma.db"; static dataDir; static path; /** * @type {boolean} */ static patched = false; /** * For Backup only */ static backupPath = null; /** * Add patch filename in key * Values: * true: Add it regardless of order * false: Do nothing * { parents: []}: Need parents before add it */ static patchList = { "patch-setting-value-type.sql": true, "patch-improve-performance.sql": true, "patch-2fa.sql": true, "patch-add-retry-interval-monitor.sql": true, "patch-incident-table.sql": true, "patch-group-table.sql": true, } /** * The finally version should be 10 after merged tag feature * @deprecated Use patchList for any new feature */ static latestVersion = 10; static noReject = true; static init(args) { // Data Directory (must be end with "/") Database.dataDir = process.env.DATA_DIR || args["data-dir"] || "./data/"; Database.path = Database.dataDir + "kuma.db"; if (! fs.existsSync(Database.dataDir)) { fs.mkdirSync(Database.dataDir, { recursive: true }); } console.log(`Data Dir: ${Database.dataDir}`); } static async connect() { const acquireConnectionTimeout = 120 * 1000; R.setup("sqlite", { filename: Database.path, useNullAsDefault: true, acquireConnectionTimeout: acquireConnectionTimeout, }, { min: 1, max: 1, idleTimeoutMillis: 120 * 1000, propagateCreateError: false, acquireTimeoutMillis: acquireConnectionTimeout, }); if (process.env.SQL_LOG === "1") { R.debug(true); } // Auto map the model to a bean object R.freeze(true); await R.autoloadModels("./server/model"); // Change to WAL await R.exec("PRAGMA journal_mode = WAL"); await R.exec("PRAGMA cache_size = -12000"); console.log("SQLite config:"); console.log(await R.getAll("PRAGMA journal_mode")); console.log(await R.getAll("PRAGMA cache_size")); } static async patch() { let version = parseInt(await setting("database_version")); if (! version) { version = 0; } console.info("Your database version: " + version); console.info("Latest database version: " + this.latestVersion); if (version === this.latestVersion) { console.info("Database no need to patch"); } else if (version > this.latestVersion) { console.info("Warning: Database version is newer than expected"); } else { console.info("Database patch is needed"); this.backup(version); // Try catch anything here, if gone wrong, restore the backup try { for (let i = version + 1; i <= this.latestVersion; i++) { const sqlFile = `./db/patch${i}.sql`; console.info(`Patching ${sqlFile}`); await Database.importSQLFile(sqlFile); console.info(`Patched ${sqlFile}`); await setSetting("database_version", i); } } catch (ex) { await Database.close(); console.error(ex); console.error("Start Uptime-Kuma failed due to patch db failed"); console.error("Please submit the bug report if you still encounter the problem after restart: https://github.com/louislam/uptime-kuma/issues"); this.restore(); process.exit(1); } } await this.patch2(); } /** * Call it from patch() only * @returns {Promise} */ static async patch2() { console.log("Database Patch 2.0 Process"); let databasePatchedFiles = await setting("databasePatchedFiles"); if (! databasePatchedFiles) { databasePatchedFiles = {}; } debug("Patched files:"); debug(databasePatchedFiles); try { for (let sqlFilename in this.patchList) { await this.patch2Recursion(sqlFilename, databasePatchedFiles); } if (this.patched) { console.log("Database Patched Successfully"); } } catch (ex) { await Database.close(); console.error(ex); console.error("Start Uptime-Kuma failed due to patch db failed"); console.error("Please submit the bug report if you still encounter the problem after restart: https://github.com/louislam/uptime-kuma/issues"); this.restore(); process.exit(1); } await setSetting("databasePatchedFiles", databasePatchedFiles); } /** * Used it patch2() only * @param sqlFilename * @param databasePatchedFiles */ static async patch2Recursion(sqlFilename, databasePatchedFiles) { let value = this.patchList[sqlFilename]; if (! value) { console.log(sqlFilename + " skip"); return; } // Check if patched if (! databasePatchedFiles[sqlFilename]) { console.log(sqlFilename + " is not patched"); if (value.parents) { console.log(sqlFilename + " need parents"); for (let parentSQLFilename of value.parents) { await this.patch2Recursion(parentSQLFilename, databasePatchedFiles); } } this.backup(dayjs().format("YYYYMMDDHHmmss")); console.log(sqlFilename + " is patching"); this.patched = true; await this.importSQLFile("./db/" + sqlFilename); databasePatchedFiles[sqlFilename] = true; console.log(sqlFilename + " is patched successfully"); } else { debug(sqlFilename + " is already patched, skip"); } } /** * Sadly, multi sql statements is not supported by many sqlite libraries, I have to implement it myself * @param filename * @returns {Promise} */ static async importSQLFile(filename) { await R.getCell("SELECT 1"); let text = fs.readFileSync(filename).toString(); // Remove all comments (--) let lines = text.split("\n"); lines = lines.filter((line) => { return ! line.startsWith("--"); }); // Split statements by semicolon // Filter out empty line text = lines.join("\n"); let statements = text.split(";") .map((statement) => { return statement.trim(); }) .filter((statement) => { return statement !== ""; }); for (let statement of statements) { await R.exec(statement); } } static getBetterSQLite3Database() { return R.knex.client.acquireConnection(); } /** * Special handle, because tarn.js throw a promise reject that cannot be caught * @returns {Promise} */ static async close() { const listener = (reason, p) => { Database.noReject = false; }; process.addListener("unhandledRejection", listener); console.log("Closing DB"); while (true) { Database.noReject = true; await R.close(); await sleep(2000); if (Database.noReject) { break; } else { console.log("Waiting to close the db"); } } console.log("SQLite closed"); process.removeListener("unhandledRejection", listener); } /** * One backup one time in this process. * Reset this.backupPath if you want to backup again * @param version */ static backup(version) { if (! this.backupPath) { console.info("Backup the db"); this.backupPath = this.dataDir + "kuma.db.bak" + version; fs.copyFileSync(Database.path, this.backupPath); const shmPath = Database.path + "-shm"; if (fs.existsSync(shmPath)) { this.backupShmPath = shmPath + ".bak" + version; fs.copyFileSync(shmPath, this.backupShmPath); } const walPath = Database.path + "-wal"; if (fs.existsSync(walPath)) { this.backupWalPath = walPath + ".bak" + version; fs.copyFileSync(walPath, this.backupWalPath); } } } /** * */ static restore() { if (this.backupPath) { console.error("Patch db failed!!! Restoring the backup"); const shmPath = Database.path + "-shm"; const walPath = Database.path + "-wal"; // Delete patch failed db try { if (fs.existsSync(Database.path)) { fs.unlinkSync(Database.path); } if (fs.existsSync(shmPath)) { fs.unlinkSync(shmPath); } if (fs.existsSync(walPath)) { fs.unlinkSync(walPath); } } catch (e) { console.log("Restore failed, you may need to restore the backup manually"); process.exit(1); } // Restore backup fs.copyFileSync(this.backupPath, Database.path); if (this.backupShmPath) { fs.copyFileSync(this.backupShmPath, shmPath); } if (this.backupWalPath) { fs.copyFileSync(this.backupWalPath, walPath); } } else { console.log("Nothing to restore"); } } } module.exports = Database;