fix(auth): allow implicit social signup

packages/auth/src/config.test.ts

@@ -0,0 +1,15 @@
+import { describe, expect, it } from "vitest";
+import { env } from "@reactive-resume/env/server";
+import { auth } from "./config";
+
+describe("social provider signup policy", () => {
+	it.each(["google", "github", "linkedin"] as const)(
+		"allows implicit signup through %s while honoring the global signup restriction",
+		(provider) => {
+			const config = auth.options.socialProviders?.[provider];
+
+			expect(config).not.toHaveProperty("disableImplicitSignUp");
+			expect(config?.disableSignUp).toBe(env.FLAG_DISABLE_SIGNUPS);
+		},
+	);
+});

packages/auth/src/config.ts

@@ -197,7 +197,6 @@ const getAuthConfig = () => {
 			google: {
 				enabled: !!env.GOOGLE_CLIENT_ID && !!env.GOOGLE_CLIENT_SECRET,
 				disableSignUp: env.FLAG_DISABLE_SIGNUPS,
-				disableImplicitSignUp: true,
 				clientId: env.GOOGLE_CLIENT_ID ?? "",
 				clientSecret: env.GOOGLE_CLIENT_SECRET ?? "",
 				mapProfileToUser: createProfileMapper({
@@ -210,7 +209,6 @@ const getAuthConfig = () => {
 			github: {
 				enabled: !!env.GITHUB_CLIENT_ID && !!env.GITHUB_CLIENT_SECRET,
 				disableSignUp: env.FLAG_DISABLE_SIGNUPS,
-				disableImplicitSignUp: true,
 				clientId: env.GITHUB_CLIENT_ID ?? "",
 				clientSecret: env.GITHUB_CLIENT_SECRET ?? "",
 				mapProfileToUser: createGithubProfileMapper(),
@@ -219,7 +217,6 @@ const getAuthConfig = () => {
 			linkedin: {
 				enabled: !!env.LINKEDIN_CLIENT_ID && !!env.LINKEDIN_CLIENT_SECRET,
 				disableSignUp: env.FLAG_DISABLE_SIGNUPS,
-				disableImplicitSignUp: true,
 				clientId: env.LINKEDIN_CLIENT_ID ?? "",
 				clientSecret: env.LINKEDIN_CLIENT_SECRET ?? "",
 				mapProfileToUser: createProfileMapper({