fix: pass public source through signup navigation

src/router/index.ts

@@ -15,15 +15,21 @@ import './admin/routeMeta'
 
 const MainLayout = () => import('../layouts/MainLayout.vue')
 
-function participantRootRedirect() {
+function sourceQueryFrom(to: { query?: Record<string, unknown> }): { src: string } | undefined {
+  const src = typeof to.query?.src === 'string' ? to.query.src.trim() : ''
+  return /^[A-Za-z0-9_-]{2,64}$/.test(src) ? { src } : undefined
+}
+
+function participantRootRedirect(to?: { query?: Record<string, unknown> }) {
   const t = localStorage.getItem(TOKEN_KEY)
   const s = localStorage.getItem(PARTICIPANT_COMPETITION_SLUG_KEY)
+  const query = to ? sourceQueryFrom(to) : undefined
   if (s) {
     return t
-      ? { name: 'participant-apply', params: { slug: s }, replace: true as const }
-      : { name: 'participant-login', params: { slug: s }, replace: true as const }
+      ? { name: 'participant-apply', params: { slug: s }, query, replace: true as const }
+      : { name: 'participant-login', params: { slug: s }, query, replace: true as const }
   }
-  return { path: '/c', replace: true as const }
+  return { path: '/c', query, replace: true as const }
 }
 
 const router = createRouter({
@@ -173,9 +179,13 @@ router.beforeEach(async (to) => {
   if (to.matched.some((r) => r.meta.requiresAuth) && !participantToken) {
     const slug = to.params.slug != null ? String(to.params.slug) : ''
     if (slug) {
-      return { name: 'participant-login', params: { slug }, query: { redirect: to.fullPath } }
+      return {
+        name: 'participant-login',
+        params: { slug },
+        query: { redirect: to.fullPath, ...sourceQueryFrom(to) },
+      }
     }
-    return { path: '/c', query: { redirect: to.fullPath } }
+    return { path: '/c', query: { redirect: to.fullPath, ...sourceQueryFrom(to) } }
   }
 
   if (to.meta.guestOnly && participantToken) {

src/utils/publicSource.ts

@@ -11,6 +11,11 @@ interface ResolveResponse {
   source_name?: string
 }
 
+function normalizeSourceCode(value: unknown): string | null {
+  const sourceCode = typeof value === 'string' ? value.trim() : ''
+  return /^[A-Za-z0-9_-]{2,64}$/.test(sourceCode) ? sourceCode : null
+}
+
 function nowMs(): number {
   return Date.now()
 }
@@ -39,6 +44,14 @@ function writePublicSourceCache(sourceCode: string): void {
 }
 
 export function readPublicSourceCodeForAttribution(): string | null {
+  const currentUrlSourceCode =
+    typeof window !== 'undefined'
+      ? normalizeSourceCode(new URLSearchParams(window.location.search).get('src'))
+      : null
+  if (currentUrlSourceCode) {
+    return currentUrlSourceCode
+  }
+
   if (!storageAvailable()) return null
   const sourceCode = window.localStorage.getItem(SOURCE_CODE_KEY)?.trim() ?? ''
   const checkedAtRaw = window.localStorage.getItem(SOURCE_CHECKED_AT_KEY)?.trim() ?? ''
@@ -56,7 +69,7 @@ export function readPublicSourceCodeForAttribution(): string | null {
 
 async function resolvePublicSource(sourceCode: string): Promise<string | null> {
   const trimmed = sourceCode.trim()
-  if (!/^[A-Za-z0-9_-]{2,64}$/.test(trimmed)) return null
+  if (!normalizeSourceCode(trimmed)) return null
 
   const qs = new URLSearchParams({ source_code: trimmed })
   const res = await fetch(`${getApiBase()}/api/v1/public/source-channels/resolve?${qs.toString()}`, {

src/views/ParticipantLandingView.vue

@@ -1,8 +1,9 @@
 <script setup lang="ts">
 import { ref } from 'vue'
-import { useRouter } from 'vue-router'
+import { useRoute, useRouter } from 'vue-router'
 import 'bootstrap/dist/css/bootstrap.min.css'
 
+const route = useRoute()
 const router = useRouter()
 const slugInput = ref('')
 const error = ref('')
@@ -14,7 +15,12 @@ function navigate() {
     error.value = '请填写访问地址'
     return
   }
-  void router.push({ name: 'participant-login', params: { slug: s } })
+  const src = typeof route.query.src === 'string' ? route.query.src.trim() : ''
+  void router.push({
+    name: 'participant-login',
+    params: { slug: s },
+    query: /^[A-Za-z0-9_-]{2,64}$/.test(src) ? { src } : undefined,
+  })
 }
 </script>