첫 커밋: 로컬 프로젝트 업로드

baron-sso/devfront/src/lib/authConfig.ts

@@ -0,0 +1,88 @@
+export interface DevFrontAuthRedirectUris {
+  redirectUri: string;
+  postLogoutRedirectUri: string;
+  popupRedirectUri: string;
+}
+
+export const DEVFRONT_AUTH_CALLBACK_PATH = "/auth/callback";
+
+export function resolveDevFrontPublicOrigin(
+  configuredOrigin: string | undefined,
+  browserOrigin: string,
+) {
+  const trimmed = configuredOrigin?.trim();
+  if (!trimmed) {
+    return browserOrigin;
+  }
+
+  try {
+    return new URL(trimmed).origin;
+  } catch {
+    return browserOrigin;
+  }
+}
+
+export function buildDevFrontAuthRedirectUris(
+  publicOrigin: string,
+): DevFrontAuthRedirectUris {
+  return {
+    redirectUri: `${publicOrigin}${DEVFRONT_AUTH_CALLBACK_PATH}`,
+    postLogoutRedirectUri: publicOrigin,
+    popupRedirectUri: `${publicOrigin}${DEVFRONT_AUTH_CALLBACK_PATH}`,
+  };
+}
+
+export type BrowserPkceLoginCheck = {
+  isSecureContext?: boolean;
+  origin?: string;
+  cryptoSubtleAvailable?: boolean;
+};
+
+const devTrustedPkceHosts = new Set([
+  "localhost",
+  "127.0.0.1",
+  "::1",
+  "host.docker.internal",
+]);
+
+function isPrivateIPv4(hostname: string) {
+  const parts = hostname.split(".").map((part) => Number.parseInt(part, 10));
+  if (
+    parts.length !== 4 ||
+    parts.some((part) => Number.isNaN(part) || part < 0 || part > 255)
+  ) {
+    return false;
+  }
+
+  const [first, second] = parts;
+  return (
+    first === 10 ||
+    (first === 172 && second >= 16 && second <= 31) ||
+    (first === 192 && second === 168)
+  );
+}
+
+function isDevTrustedPkceOrigin(origin: string) {
+  try {
+    const hostname = new URL(origin).hostname;
+    return devTrustedPkceHosts.has(hostname) || isPrivateIPv4(hostname);
+  } catch {
+    return false;
+  }
+}
+
+export function canStartBrowserPkceLogin({
+  isSecureContext = window.isSecureContext,
+  origin = window.location.origin,
+  cryptoSubtleAvailable = Boolean(window.crypto?.subtle),
+}: BrowserPkceLoginCheck = {}) {
+  if (!cryptoSubtleAvailable) {
+    return false;
+  }
+
+  if (isSecureContext) {
+    return true;
+  }
+
+  return isDevTrustedPkceOrigin(origin);
+}