Files
zipline/src/lib/readConfig.js
2022-02-19 20:17:02 -08:00

107 lines
3.3 KiB
JavaScript

const { existsSync, readFileSync } = require('fs');
const { join } = require('path');
const parse = require('@iarna/toml/parse-string.js');
const Logger = require('./logger.js');
const e = (val, type, fn) => ({ val, type, fn });
const envValues = [
e('SECURE', 'boolean', (c, v) => c.core.secure = v),
e('SECRET', 'string', (c, v) => c.core.secret = v),
e('HOST', 'string', (c, v) => c.core.host = v),
e('PORT', 'number', (c, v) => c.core.port = v),
e('DATABASE_URL', 'string', (c, v) => c.core.database_url = v),
e('LOGGER', 'boolean', (c, v) => c.core.logger = v ?? true),
e('STATS_INTERVAL', 'number', (c, v) => c.core.stats_interval = v),
e('UPLOADER_ROUTE', 'string', (c, v) => c.uploader.route = v),
e('UPLOADER_LENGTH', 'number', (c, v) => c.uploader.length = v),
e('UPLOADER_DIRECTORY', 'string', (c, v) => c.uploader.directory = v),
e('UPLOADER_ADMIN_LIMIT', 'number', (c, v) => c.uploader.admin_limit = v),
e('UPLOADER_USER_LIMIT', 'number', (c, v) => c.uploader.user_limit = v),
e('UPLOADER_DISABLED_EXTS', 'array', (c, v) => v ? c.uploader.disabled_extentions = v : c.uploader.disabled_extentions = []),
e('URLS_ROUTE', 'string', (c, v) => c.urls.route = v),
e('URLS_LENGTH', 'number', (c, v) => c.urls.length = v),
e('RATELIMIT_USER', 'number', (c, v) => c.ratelimit.user = v ?? 0),
e('RATELIMIT_ADMIN', 'number', (c, v) => c.ratelimit.user = v ?? 0),
];
module.exports = function readConfig() {
if (!existsSync(join(process.cwd(), 'config.toml'))) {
if (!process.env.ZIPLINE_DOCKER_BUILD) Logger.get('config').info('reading environment');
return tryReadEnv();
} else {
if (process.env.ZIPLINE_DOCKER_BUILD) return;
Logger.get('config').info('reading config file');
const str = readFileSync(join(process.cwd(), 'config.toml'), 'utf8');
const parsed = parse(str);
return parsed;
}
};
function tryReadEnv() {
const config = {
core: {
secure: undefined,
secret: undefined,
host: undefined,
port: undefined,
database_url: undefined,
logger: undefined,
stats_interval: undefined,
},
uploader: {
route: undefined,
length: undefined,
directory: undefined,
admin_limit: undefined,
user_limit: undefined,
disabled_extentions: undefined,
},
urls: {
route: undefined,
length: undefined,
},
ratelimit: {
user: undefined,
admin: undefined,
},
};
for (let i = 0, L = envValues.length; i !== L; ++i) {
const envValue = envValues[i];
let value = process.env[envValue.val];
if (!value) {
envValues[i].fn(config, undefined);
} else {
envValues[i].fn(config, value);
if (envValue.type === 'number') value = parseToNumber(value);
else if (envValue.type === 'boolean') value = parseToBoolean(value);
else if (envValue.type === 'array') value = parseToArray(value);
envValues[i].fn(config, value);
}
}
return config;
}
function parseToNumber(value) {
// infer that it is a string since env values are only strings
const number = Number(value);
if (isNaN(number)) return undefined;
return number;
}
function parseToBoolean(value) {
// infer that it is a string since env values are only strings
if (!value || value === 'false') return false;
else return true;
}
function parseToArray(value) {
return value.split(',');
}