chore: import upstream snapshot with attribution

2026-07-13 13:32:57 +08:00
commit cd420f9332
4811 changed files with 884702 additions and 0 deletions
@@ -0,0 +1,95 @@
+import type { LoaderFunctionArgs } from "@remix-run/server-runtime";
+import { redirect } from "@remix-run/server-runtime";
+import { prisma } from "~/db.server";
+import { redirectWithErrorMessage } from "~/models/message.server";
+import { authenticator } from "~/services/auth.server";
+import { setLastAuthMethodHeader } from "~/services/lastAuthMethod.server";
+import { getRedirectTo } from "~/services/redirectTo.server";
+import { commitSession, getSession } from "~/services/sessionStorage.server";
+import { commitAuthenticatedSession } from "~/services/sessionDuration.server";
+import { trackAndClearReferralSource } from "~/services/referralSource.server";
+import { appendRedirectTo, ssoRedirectFromAuthError } from "~/services/ssoAutoDiscovery.server";
+import type { AuthUser } from "~/services/authUser";
+import { sanitizeRedirectPath } from "~/utils";
+
+export async function loader({ request }: LoaderFunctionArgs) {
+  // Defense-in-depth: sanitize the cookie value to drop non-page paths in case
+  // a stale cookie from before sanitization shipped is still in the browser.
+  const sanitized = sanitizeRedirectPath(await getRedirectTo(request));
+  const redirectTo = sanitized === "/" ? undefined : sanitized;
+
+  // The magic-link verify callback runs the SSO gate before any account
+  // write, so an SSO-enforced domain throws out here. remix-auth's own
+  // redirects are thrown Responses — pass those through.
+  let auth: AuthUser;
+  try {
+    auth = await authenticator.authenticate("email-link", request);
+  } catch (thrown) {
+    if (thrown instanceof Response) throw thrown;
+    const ssoRedirect = ssoRedirectFromAuthError(thrown);
+    if (ssoRedirect) {
+      return redirect(appendRedirectTo(ssoRedirect, redirectTo));
+    }
+    // Without `failureRedirect`, remix-auth no longer flashes the verify
+    // error onto the session before throwing — so flash it here under the
+    // same `auth:error` key the /login/magic loader reads. Otherwise an
+    // expired/invalid link silently re-renders the email form with no
+    // indication of what went wrong.
+    const session = await getSession(request.headers.get("cookie"));
+    session.flash("auth:error", {
+      message:
+        thrown instanceof Error ? thrown.message : "Your magic link is invalid or has expired.",
+    });
+    return redirect("/login/magic", {
+      headers: { "Set-Cookie": await commitSession(session) },
+    });
+  }
+
+  // manually get the session
+  const session = await getSession(request.headers.get("cookie"));
+
+  const userRecord = await prisma.user.findFirst({
+    where: {
+      id: auth.userId,
+    },
+    select: {
+      id: true,
+      mfaEnabledAt: true,
+    },
+  });
+
+  if (!userRecord) {
+    return redirectWithErrorMessage(
+      "/login/magic",
+      request,
+      "Could not find your account. Please contact support."
+    );
+  }
+
+  if (userRecord.mfaEnabledAt) {
+    session.set("pending-mfa-user-id", userRecord.id);
+    session.set("pending-mfa-redirect-to", redirectTo ?? "/");
+    // Clear any `pending-sso` left over from an aborted SSO login in the same
+    // browser session — otherwise `completeLogin` would stamp an SSO marker
+    // onto this magic-link session and `revalidateSsoSession` would later
+    // validate it against an IdP the user never authenticated through.
+    session.unset("pending-sso");
+
+    const headers = new Headers();
+    headers.append("Set-Cookie", await commitSession(session));
+    headers.append("Set-Cookie", await setLastAuthMethodHeader("email"));
+
+    return redirect("/login/mfa", { headers });
+  }
+
+  // and store the user data
+  session.set(authenticator.sessionKey, auth);
+
+  const headers = new Headers();
+  headers.append("Set-Cookie", await commitAuthenticatedSession(session, auth.userId));
+  headers.append("Set-Cookie", await setLastAuthMethodHeader("email"));
+
+  await trackAndClearReferralSource(request, auth.userId, headers);
+
+  return redirect(redirectTo ?? "/", { headers });
+}