52 lines
1.8 KiB
TypeScript
52 lines
1.8 KiB
TypeScript
export const LOCAL_DEFAULT_BACKEND_URL = "http://localhost:8000"
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export type ConfiguredBackendUrl =
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| { kind: "local" }
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| { kind: "fixed"; url: string }
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| { kind: "same-origin" }
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export function configuredBackendUrl(): ConfiguredBackendUrl {
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const raw = process.env.NEXT_PUBLIC_BACKEND_URL
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if (raw === undefined || raw === "local") return { kind: "local" }
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if (raw === "" || raw === "same-origin") return { kind: "same-origin" }
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return { kind: "fixed", url: raw.replace(/\/$/, "") }
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}
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export function defaultDataSourceMode(): "mock" | "live" {
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if (!isMockDataSourceAvailable()) return "live"
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return process.env.NEXT_PUBLIC_DEFAULT_DATA_SOURCE === "live" ? "live" : "mock"
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}
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export function isMockDataSourceAvailable(): boolean {
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return process.env.NEXT_PUBLIC_ALLOW_MOCK_DATA !== "false"
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}
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export function isBackendUrlLocked(): boolean {
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const cfg = configuredBackendUrl()
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return cfg.kind === "same-origin" || cfg.kind === "fixed"
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}
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function isLoopbackHost(hostname: string): boolean {
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return hostname === "localhost" || hostname === "127.0.0.1"
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}
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/** Prefer same-origin when the UI is not on loopback — never point the browser at localhost. */
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export function resolveStoredBackendUrl(stored: string | null): string {
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const cfg = configuredBackendUrl()
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if (cfg.kind === "fixed") return cfg.url
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if (cfg.kind === "same-origin") {
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if (typeof window !== "undefined") return window.location.origin
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return ""
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}
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if (typeof window !== "undefined" && !isLoopbackHost(window.location.hostname)) {
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return window.location.origin
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}
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const trimmed = stored?.trim().replace(/\/$/, "")
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if (trimmed && /^https?:\/\/(localhost|127\.0\.0\.1)(:\d+)?$/i.test(trimmed)) {
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if (typeof window !== "undefined" && !isLoopbackHost(window.location.hostname)) {
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return window.location.origin
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}
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}
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return trimmed || LOCAL_DEFAULT_BACKEND_URL
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}
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