61 lines
2.2 KiB
JavaScript
61 lines
2.2 KiB
JavaScript
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export function loadConfig(environment = process.env) {
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const publicOrigin = required(environment, 'REMORA_WEB_PUBLIC_ORIGIN')
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const apiUpstream = required(environment, 'REMORA_WEB_API_UPSTREAM')
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const oidcAuthority = required(environment, 'REMORA_WEB_OIDC_AUTHORITY')
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return {
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root: environment.REMORA_WEB_ROOT || '/app/dist',
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port: port(environment.REMORA_WEB_PORT || '8080'),
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publicOrigin: new URL(publicOrigin).origin,
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apiUpstream: trailingSlash(new URL(apiUpstream)),
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eventsUpstream: webSocketUrl(
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environment.REMORA_WEB_EVENTS_UPSTREAM ||
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new URL('events', trailingSlash(new URL(apiUpstream))).toString(),
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),
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oidcAuthority: oidcAuthority.replace(/\/$/, ''),
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oidcClientId: required(environment, 'REMORA_WEB_OIDC_CLIENT_ID'),
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oidcClientSecret: required(environment, 'REMORA_WEB_OIDC_CLIENT_SECRET'),
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oidcScope: environment.REMORA_WEB_OIDC_SCOPE || 'openid profile',
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sessionUrl: required(environment, 'REMORA_WEB_SESSION_URL'),
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sessionNamespace:
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environment.REMORA_WEB_SESSION_NAMESPACE || 'remora:web-session:',
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sessionTtlSeconds: positiveInteger(
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environment.REMORA_WEB_SESSION_TTL_SECONDS || '28800',
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'REMORA_WEB_SESSION_TTL_SECONDS',
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),
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secureCookie: true,
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}
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}
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function required(environment, name) {
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const value = environment[name]
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if (value === undefined || value === '')
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throw new Error(`${name} is required`)
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return value
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}
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function port(value) {
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const parsed = positiveInteger(value, 'REMORA_WEB_PORT')
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if (parsed > 65535) throw new Error('REMORA_WEB_PORT must be a valid port')
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return parsed
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}
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function positiveInteger(value, name) {
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const parsed = Number(value)
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if (!Number.isSafeInteger(parsed) || parsed < 1)
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throw new Error(`${name} must be a positive integer`)
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return parsed
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}
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function trailingSlash(url) {
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if (!url.pathname.endsWith('/')) url.pathname += '/'
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return url
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}
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function webSocketUrl(value) {
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const url = new URL(value)
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if (url.protocol === 'http:') url.protocol = 'ws:'
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else if (url.protocol === 'https:') url.protocol = 'wss:'
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if (url.protocol !== 'ws:' && url.protocol !== 'wss:')
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throw new Error('REMORA_WEB_EVENTS_UPSTREAM must use HTTP or WebSocket')
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return url
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}
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