From af5d681c2294654c701d1af88a65111a04ea8d4d Mon Sep 17 00:00:00 2001
From: Alireza Ahmadi <alireza7@gmail.com>
Date: Fri, 25 Aug 2023 20:26:59 +0200
Subject: [PATCH] Transparent Proxy with sockopt Stream Setting

---
 web/assets/js/model/xray.js                   | 40 ++++++++++++++++
 web/html/xui/form/stream/stream_settings.html |  4 ++
 web/html/xui/form/stream/stream_sockopt.html  | 46 +++++++++++++++++++
 3 files changed, 90 insertions(+)
 create mode 100644 web/html/xui/form/stream/stream_sockopt.html

diff --git a/web/assets/js/model/xray.js b/web/assets/js/model/xray.js
index 4b391dfa..08720165 100644
--- a/web/assets/js/model/xray.js
+++ b/web/assets/js/model/xray.js
@@ -676,6 +676,34 @@ RealityStreamSettings.Settings = class extends XrayCommonClass {
     }
 };
 
+class SockoptStreamSettings extends XrayCommonClass {
+    constructor(acceptProxyProtocol = false, tcpFastOpen = false, mark = 0, tproxy="off") {
+        super();
+        this.acceptProxyProtocol = acceptProxyProtocol;
+        this.tcpFastOpen = tcpFastOpen;
+        this.mark = mark;
+        this.tproxy = tproxy;
+    }
+
+    static fromJson(json = {}) {
+        return new SockoptStreamSettings(
+            json.acceptProxyProtocol,
+            json.tcpFastOpen,
+            json.mark,
+            json.tproxy,
+        );
+    }
+
+    toJson() {
+        return {
+            acceptProxyProtocol: this.acceptProxyProtocol,
+            tcpFastOpen: this.tcpFastOpen,
+            mark: this.mark,
+            tproxy: this.tproxy,
+        };
+    }
+}
+
 class StreamSettings extends XrayCommonClass {
     constructor(network='tcp',
                 security='none',
@@ -687,6 +715,7 @@ class StreamSettings extends XrayCommonClass {
                 httpSettings=new HttpStreamSettings(),
                 quicSettings=new QuicStreamSettings(),
                 grpcSettings=new GrpcStreamSettings(),
+                sockopt = undefined,
                 ) {
         super();
         this.network = network;
@@ -699,6 +728,7 @@ class StreamSettings extends XrayCommonClass {
         this.http = httpSettings;
         this.quic = quicSettings;
         this.grpc = grpcSettings;
+        this.sockopt = sockopt;
     }
 
     get isTls() {
@@ -725,6 +755,14 @@ class StreamSettings extends XrayCommonClass {
         }
     }
 
+    get sockoptSwitch() {
+        return this.sockopt != undefined;
+    }
+
+    set sockoptSwitch(value) {
+        this.sockopt = value ? new SockoptStreamSettings() : undefined;
+    }
+
     static fromJson(json={}) {
 
         return new StreamSettings(
@@ -738,6 +776,7 @@ class StreamSettings extends XrayCommonClass {
             HttpStreamSettings.fromJson(json.httpSettings),
             QuicStreamSettings.fromJson(json.quicSettings),
             GrpcStreamSettings.fromJson(json.grpcSettings),
+            SockoptStreamSettings.fromJson(json.sockopt),
         );
     }
 
@@ -754,6 +793,7 @@ class StreamSettings extends XrayCommonClass {
             httpSettings: network === 'http' ? this.http.toJson() : undefined,
             quicSettings: network === 'quic' ? this.quic.toJson() : undefined,
             grpcSettings: network === 'grpc' ? this.grpc.toJson() : undefined,
+            sockopt: this.sockopt != undefined ? this.sockopt.toJson() : undefined,
         };
     }
 }
diff --git a/web/html/xui/form/stream/stream_settings.html b/web/html/xui/form/stream/stream_settings.html
index e2398b15..a78f283b 100644
--- a/web/html/xui/form/stream/stream_settings.html
+++ b/web/html/xui/form/stream/stream_settings.html
@@ -43,4 +43,8 @@
 <template v-if="inbound.stream.network === 'grpc'">
     {{template "form/streamGRPC"}}
 </template>
+<!-- sockopt -->
+<template>
+    {{template "form/streamSockopt"}}
+</template>
 {{end}}
\ No newline at end of file
diff --git a/web/html/xui/form/stream/stream_sockopt.html b/web/html/xui/form/stream/stream_sockopt.html
new file mode 100644
index 00000000..d90bf206
--- /dev/null
+++ b/web/html/xui/form/stream/stream_sockopt.html
@@ -0,0 +1,46 @@
+{{define "form/streamSockopt"}}
+<a-form layout="inline">
+    <a-form-item label="Transparent Proxy">
+        <a-switch v-model="inbound.stream.sockoptSwitch"></a-switch>
+    </a-form-item>
+    <table width="100%" class="ant-table-tbody" v-if="inbound.stream.sockoptSwitch">
+        <tr>
+            <td>Accept Proxy Protocol</td>
+            <td>
+                <a-form-item>
+                    <a-switch v-model="inbound.stream.sockopt.acceptProxyProtocol"></a-switch>
+                </a-form-item>
+            </td>
+        </tr>
+        <tr>
+            <td>TCP FastOpen</td>
+            <td>
+                <a-form-item>
+                    <a-switch v-model.trim="inbound.stream.sockopt.tcpFastOpen"></a-switch>
+                </a-form-item>
+            </td>
+        </tr>
+        <tr>
+            <td>Route Mark</td>
+            <td>
+                <a-form-item>
+                    <a-input-number v-model="inbound.stream.sockopt.mark" :min="0"></a-input-number>
+                </a-form-item>
+            </td>
+        </tr>
+        <tr>
+            <td>T-Proxy</td>
+            <td>
+                <a-form-item>
+                    <a-select v-model="inbound.stream.sockopt.tproxy" style="width: 250px;"
+                        :dropdown-class-name="themeSwitcher.darkCardClass">
+                        <a-select-option value="off">OFF</a-select-option>
+                        <a-select-option value="redirect">Redirect</a-select-option>
+                        <a-select-option value="tproxy">T-Proxy</a-select-option>
+                    </a-select>
+                </a-form-item>
+            </td>
+        </tr>
+    </table>
+</a-form>
+{{end}}
\ No newline at end of file