fix: use server-side fetch for logo save (bypass CORS), detect file MIME on extension

src/actions/save-logo.ts

@@ -38,3 +38,36 @@ export async function saveLogo(formData: FormData): Promise<{ success: boolean;
     return { success: false, error: e instanceof Error ? e.message : "Unknown error" };
   }
 }
+
+export async function saveLogoFromUrl(gifUrl: string): Promise<{ success: boolean; url?: string; error?: string }> {
+  try {
+    const res = await fetch(gifUrl);
+    if (!res.ok) return { success: false, error: `Failed to fetch GIF: ${res.status}` };
+
+    const contentType = res.headers.get("content-type") ?? "image/gif";
+    const buffer = Buffer.from(await res.arrayBuffer());
+
+    const mimeExt: Record<string, string> = { "image/png": "png", "image/gif": "gif", "image/jpeg": "jpg", "image/webp": "webp" };
+    const ext = mimeExt[contentType] ?? "gif";
+    const filename = `logo-${Date.now()}-${Math.random().toString(36).slice(2, 8)}.${ext}`;
+    const dir = path.join(process.cwd(), MEDIA_DIR);
+    const filePath = path.join(dir, filename);
+
+    await writeFile(filePath, buffer);
+
+    const url = `/api/media/${filename}`;
+
+    await prisma.websiteSetting.upsert({
+      where: { key: "cms_logo" },
+      update: { value: url },
+      create: { key: "cms_logo", value: url, comment: "Logo (generator)" },
+    });
+
+    siteSettings.reload();
+    revalidatePath("/", "layout");
+
+    return { success: true, url };
+  } catch (e) {
+    return { success: false, error: e instanceof Error ? e.message : "Unknown error" };
+  }
+}