From c7e838c95a82a54ae565a9f33220ec095693853b Mon Sep 17 00:00:00 2001
From: abdulrahman <ug_31107079@ics.tanta.edu.eg>
Date: Tue, 12 May 2026 20:03:06 +0300
Subject: [PATCH] fix(hysteria2): restore missing masquerade config in inbound
 form

Fixes #4303

The Hysteria2 Masquerade option was missing from the Stream settings
tab after the v3.0.0 form rewrite. Added the UI form and ensured the
masquerade block is passed through in subscription JSON generation.
---
 .../src/pages/inbounds/InboundFormModal.vue   | 68 +++++++++++++++++++
 sub/subJsonService.go                         |  3 +
 2 files changed, 71 insertions(+)

diff --git a/frontend/src/pages/inbounds/InboundFormModal.vue b/frontend/src/pages/inbounds/InboundFormModal.vue
index fd045bbb..67ba1693 100644
--- a/frontend/src/pages/inbounds/InboundFormModal.vue
+++ b/frontend/src/pages/inbounds/InboundFormModal.vue
@@ -1671,6 +1671,74 @@ watch(
               </a-select>
             </a-form-item>
           </template>
+
+          <!-- ====== Hysteria Masquerade ====== -->
+          <template v-if="protocol === Protocols.HYSTERIA">
+            <a-divider :style="{ margin: '12px 0' }">Masquerade</a-divider>
+            <a-form-item label="Enable">
+              <a-switch v-model:checked="inbound.stream.hysteria.masqueradeSwitch" />
+            </a-form-item>
+            <template v-if="inbound.stream.hysteria.masqueradeSwitch">
+              <a-form-item label="Type">
+                <a-select v-model:value="inbound.stream.hysteria.masquerade.type" :style="{ width: '50%' }">
+                  <a-select-option value="proxy">Proxy</a-select-option>
+                  <a-select-option value="http">HTTP</a-select-option>
+                  <a-select-option value="file">File</a-select-option>
+                  <a-select-option value="string">String</a-select-option>
+                  <a-select-option value="404">404</a-select-option>
+                </a-select>
+              </a-form-item>
+
+              <!-- File type -->
+              <a-form-item v-if="inbound.stream.hysteria.masquerade.type === 'file'" label="Directory">
+                <a-input v-model:value="inbound.stream.hysteria.masquerade.dir" placeholder="/path/to/www" />
+              </a-form-item>
+
+              <!-- HTTP type -->
+              <template v-if="inbound.stream.hysteria.masquerade.type === 'http'">
+                <a-form-item label="URL">
+                  <a-input v-model:value="inbound.stream.hysteria.masquerade.url" placeholder="https://example.com" />
+                </a-form-item>
+                <a-form-item label="Rewrite Host">
+                  <a-switch v-model:checked="inbound.stream.hysteria.masquerade.rewriteHost" />
+                </a-form-item>
+                <a-form-item label="Insecure">
+                  <a-switch v-model:checked="inbound.stream.hysteria.masquerade.insecure" />
+                </a-form-item>
+                <a-form-item label="Status Code">
+                  <a-input-number v-model:value="inbound.stream.hysteria.masquerade.statusCode" :min="100" :max="599"
+                    placeholder="200" />
+                </a-form-item>
+                <a-form-item label="Headers">
+                  <a-button size="small" @click="inbound.stream.hysteria.masquerade.addHeader('', '')">
+                    <template #icon>
+                      <PlusOutlined />
+                    </template>
+                  </a-button>
+                </a-form-item>
+                <a-form-item v-if="inbound.stream.hysteria.masquerade.headers.length > 0" :wrapper-col="{ span: 24 }">
+                  <a-input-group v-for="(h, idx) in inbound.stream.hysteria.masquerade.headers" :key="`mh-${idx}`" compact
+                    class="mb-8">
+                    <a-input :style="{ width: '45%' }" v-model:value="h.name" placeholder="Name">
+                      <template #addonBefore>{{ idx + 1 }}</template>
+                    </a-input>
+                    <a-input :style="{ width: '45%' }" v-model:value="h.value" placeholder="Value" />
+                    <a-button @click="inbound.stream.hysteria.masquerade.removeHeader(idx)">
+                      <template #icon>
+                        <MinusOutlined />
+                      </template>
+                    </a-button>
+                  </a-input-group>
+                </a-form-item>
+              </template>
+
+              <!-- String type -->
+              <a-form-item v-if="inbound.stream.hysteria.masquerade.type === 'string'" label="Content">
+                <a-textarea v-model:value="inbound.stream.hysteria.masquerade.content"
+                  :auto-size="{ minRows: 2, maxRows: 6 }" />
+              </a-form-item>
+            </template>
+          </template>
         </a-form>
 
         <!-- ====== FinalMask (TCP/UDP masks + QUIC params) ====== -->
diff --git a/sub/subJsonService.go b/sub/subJsonService.go
index fc35698e..4fe77b88 100644
--- a/sub/subJsonService.go
+++ b/sub/subJsonService.go
@@ -447,6 +447,9 @@ func (s *SubJsonService) genHy(inbound *model.Inbound, newStream map[string]any,
 	if udpIdleTimeout, ok := hyStream["udpIdleTimeout"].(float64); ok {
 		outHyStream["udpIdleTimeout"] = int(udpIdleTimeout)
 	}
+	if masquerade, ok := hyStream["masquerade"].(map[string]any); ok {
+		outHyStream["masquerade"] = masquerade
+	}
 	newStream["hysteriaSettings"] = outHyStream
 
 	if finalmask, ok := hyStream["finalmask"].(map[string]any); ok {