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import merge from 'deepmerge';
import * as fs from 'fs';
import {
IUnleashOptions,
IUnleashConfig,
IDBOption,
ISessionOption,
IServerOption,
IVersionOption,
IAuthOption,
IAuthType,
IImportOption,
IEmailOption,
IListeningPipe,
IListeningHost,
IUIConfig,
} from './types/option';
import { getDefaultLogProvider, LogLevel, validateLogProvider } from './logger';
import { defaultCustomAuthDenyAll } from './default-custom-auth-deny-all';
import { formatBaseUri } from './util/format-base-uri';
import { minutesToMilliseconds, secondsToMilliseconds } from 'date-fns';
import EventEmitter from 'events';
import {
ApiTokenType,
mapLegacyToken,
validateApiToken,
} from './types/models/api-token';
const safeToUpper = (s: string) => (s ? s.toUpperCase() : s);
export function authTypeFromString(
s?: string,
defaultType: IAuthType = IAuthType.OPEN_SOURCE,
): IAuthType {
return IAuthType[safeToUpper(s)] || defaultType;
}
function safeNumber(envVar, defaultVal): number {
if (envVar) {
try {
return Number.parseInt(envVar, 10);
} catch (err) {
return defaultVal;
}
} else {
return defaultVal;
}
}
function safeBoolean(envVar: string, defaultVal: boolean): boolean {
Iif (envVar) {
return envVar === 'true' || envVar === '1' || envVar === 't';
}
return defaultVal;
}
function mergeAll<T>(objects: Partial<T>[]): T {
return merge.all<T>(objects.filter((i) => i));
}
function loadExperimental(options: IUnleashOptions): any {
const experimental = options.experimental || {};
return experimental;
}
function loadUI(options: IUnleashOptions): IUIConfig {
const uiO = options.ui || {};
const ui: IUIConfig = {};
ui.flags = {
E: true,
};
return mergeAll([uiO, ui]);
}
const defaultDbOptions: IDBOption = {
user: process.env.DATABASE_USERNAME,
password: process.env.DATABASE_PASSWORD,
host: process.env.DATABASE_HOST,
port: safeNumber(process.env.DATABASE_PORT, 5432),
database: process.env.DATABASE_NAME || 'unleash',
ssl:
process.env.DATABASE_SSL != null
? JSON.parse(process.env.DATABASE_SSL)
: { rejectUnauthorized: false },
driver: 'postgres',
version: process.env.DATABASE_VERSION,
acquireConnectionTimeout: secondsToMilliseconds(30),
pool: {
min: safeNumber(process.env.DATABASE_POOL_MIN, 0),
max: safeNumber(process.env.DATABASE_POOL_MAX, 4),
idleTimeoutMillis: safeNumber(
process.env.DATABASE_POOL_IDLE_TIMEOUT_MS,
secondsToMilliseconds(30),
),
propagateCreateError: false,
},
schema: process.env.DATABASE_SCHEMA || 'public',
disableMigration: false,
applicationName: process.env.DATABASE_APPLICATION_NAME || 'unleash',
};
const defaultSessionOption: ISessionOption = {
ttlHours: safeNumber(process.env.SESSION_TTL_HOURS, 48),
db: true,
};
const defaultServerOption: IServerOption = {
pipe: undefined,
host: process.env.HTTP_HOST,
port: safeNumber(process.env.HTTP_PORT || process.env.PORT, 4242),
baseUriPath: formatBaseUri(process.env.BASE_URI_PATH),
cdnPrefix: process.env.CDN_PREFIX,
unleashUrl: process.env.UNLEASH_URL || 'http://localhost:4242',
serverMetrics: true,
keepAliveTimeout: minutesToMilliseconds(1),
headersTimeout: secondsToMilliseconds(61),
enableRequestLogger: false,
gracefulShutdownEnable: safeBoolean(
process.env.GRACEFUL_SHUTDOWN_ENABLE,
true,
),
gracefulShutdownTimeout: safeNumber(
process.env.GRACEFUL_SHUTDOWN_TIMEOUT,
secondsToMilliseconds(1),
),
secret: process.env.UNLEASH_SECRET || 'super-secret',
};
const defaultVersionOption: IVersionOption = {
url: process.env.UNLEASH_VERSION_URL || 'https://version.unleash.run',
enable: safeBoolean(process.env.CHECK_VERSION, true),
};
const defaultAuthentication: IAuthOption = {
enableApiToken: safeBoolean(process.env.AUTH_ENABLE_API_TOKEN, true),
type: authTypeFromString(process.env.AUTH_TYPE),
customAuthHandler: defaultCustomAuthDenyAll,
createAdminUser: true,
initApiTokens: [],
};
const defaultImport: IImportOption = {
file: process.env.IMPORT_FILE,
dropBeforeImport: safeBoolean(process.env.IMPORT_DROP_BEFORE_IMPORT, false),
keepExisting: safeBoolean(process.env.IMPORT_KEEP_EXISTING, false),
};
const defaultEmail: IEmailOption = {
host: process.env.EMAIL_HOST,
secure: safeBoolean(process.env.EMAIL_SECURE, false),
port: safeNumber(process.env.EMAIL_PORT, 587),
sender: process.env.EMAIL_SENDER || 'noreply@unleash-hosted.com',
smtpuser: process.env.EMAIL_USER,
smtppass: process.env.EMAIL_PASSWORD,
};
const dbPort = (dbConfig: Partial<IDBOption>): Partial<IDBOption> => {
if (typeof dbConfig.port === 'string') {
// eslint-disable-next-line no-param-reassign
dbConfig.port = Number.parseInt(dbConfig.port, 10);
}
return dbConfig;
};
const removeUndefinedKeys = (o: object): object =>
Object.keys(o).reduce((a, key) => {
if (o[key] !== undefined) {
// eslint-disable-next-line no-param-reassign
a[key] = o[key];
return a;
}
return a;
}, {});
const formatServerOptions = (
serverOptions?: Partial<IServerOption>,
): Partial<IServerOption> | undefined => {
if (!serverOptions) return;
/* eslint-disable-next-line */
return {
...serverOptions,
baseUriPath: formatBaseUri(serverOptions.baseUriPath),
};
};
const loadTokensFromString = (tokenString: String, tokenType: ApiTokenType) => {
if (!tokenString) {
return [];
}
const initApiTokens = tokenString.split(/,\s?/);
const tokens = initApiTokens.map((secret) => {
const [project = '*', rest] = secret.split(':');
const [environment = '*'] = rest.split('.');
const token = {
createdAt: undefined,
project,
environment,
secret,
type: tokenType,
username: 'admin',
};
validateApiToken(mapLegacyToken(token));
return token;
});
return tokens;
};
const loadInitApiTokens = () => {
return [
...loadTokensFromString(
process.env.INIT_ADMIN_API_TOKENS,
ApiTokenType.ADMIN,
),
...loadTokensFromString(
process.env.INIT_CLIENT_API_TOKENS,
ApiTokenType.CLIENT,
),
];
};
const loadEnvironmentEnableOverrides = () => {
const environmentsString = process.env.ENABLED_ENVIRONMENTS;
if (environmentsString) {
return environmentsString.split(',');
}
return [];
};
export function createConfig(options: IUnleashOptions): IUnleashConfig {
let extraDbOptions = {};
if (options.databaseUrl) {
extraDbOptions = parse(options.databaseUrl);
} else if (process.env.DATABASE_URL) {
extraDbOptions = parse(process.env.DATABASE_URL);
}
let fileDbOptions = {};
Iif (options.databaseUrlFile && fs.existsSync(options.databaseUrlFile)) {
fileDbOptions = parse(
fs.readFileSync(options.databaseUrlFile, 'utf-8'),
);
} else if (
process.env.DATABASE_URL_FILE &&
fs.existsSync(process.env.DATABASE_URL_FILE)
) {
fileDbOptions = parse(
fs.readFileSync(process.env.DATABASE_URL_FILE, 'utf-8'),
);
}
const db: IDBOption = mergeAll<IDBOption>([
defaultDbOptions,
dbPort(extraDbOptions),
dbPort(fileDbOptions),
options.db,
]);
const session: ISessionOption = mergeAll([
defaultSessionOption,
options.session,
]);
const logLevel =
options.logLevel || LogLevel[process.env.LOG_LEVEL] || LogLevel.error;
const getLogger = options.getLogger || getDefaultLogProvider(logLevel);
validateLogProvider(getLogger);
const server: IServerOption = mergeAll([
defaultServerOption,
formatServerOptions(options.server),
]);
const versionCheck: IVersionOption = mergeAll([
defaultVersionOption,
options.versionCheck,
]);
const initApiTokens = loadInitApiTokens();
const authentication: IAuthOption = mergeAll([
defaultAuthentication,
options.authentication
? removeUndefinedKeys(options.authentication)
: options.authentication,
{ initApiTokens: initApiTokens },
]);
const environmentEnableOverrides = loadEnvironmentEnableOverrides();
const importSetting: IImportOption = mergeAll([
defaultImport,
options.import,
]);
const experimental = loadExperimental(options);
const ui = loadUI(options);
const email: IEmailOption = mergeAll([defaultEmail, options.email]);
let listen: IListeningPipe | IListeningHost;
Iif (server.pipe) {
listen = { path: server.pipe };
} else {
listen = { host: server.host || undefined, port: server.port };
}
const secureHeaders =
options.secureHeaders || safeBoolean(process.env.SECURE_HEADERS, false);
const enableOAS =
options.enableOAS || safeBoolean(process.env.ENABLE_OAS, false);
const disableLegacyFeaturesApi =
options.disableLegacyFeaturesApi ||
safeBoolean(process.env.DISABLE_LEGACY_FEATURES_API, false);
return {
db,
session,
getLogger,
server,
listen,
versionCheck,
authentication,
ui,
import: importSetting,
experimental,
email,
secureHeaders,
enableOAS,
disableLegacyFeaturesApi,
preHook: options.preHook,
preRouterHook: options.preRouterHook,
eventHook: options.eventHook,
enterpriseVersion: options.enterpriseVersion,
eventBus: new EventEmitter(),
environmentEnableOverrides,
};
}
module.exports = {
createConfig,
authTypeFromString,
};
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