fix(inbounds): allow port 0 for UDS inbounds (#4783)

Unix Domain Socket inbounds (listen path starting with /) use port 0, which xray-core ignores. Validation was hard-locked to a minimum of 1 in three places: the shared Zod PortSchema, the AntD InputNumber, and the Go Inbound model tag. Adds an InboundPortSchema (min 0) for the inbound form/API schemas, makes the port InputNumber min UDS-aware, and relaxes the Inbound model validate tag to gte=0. PortSchema and the Node model stay min 1.

database/model/model.go

@@ -55,7 +55,7 @@ type Inbound struct {
 
 	// Xray configuration fields
 	Listen         string   `json:"listen" form:"listen"`
-	Port           int      `json:"port" form:"port" validate:"gte=1,lte=65535"`
+	Port           int      `json:"port" form:"port" validate:"gte=0,lte=65535"`
 	Protocol       Protocol `json:"protocol" form:"protocol" validate:"required,oneof=vmess vless trojan shadowsocks wireguard hysteria http mixed tunnel tun"`
 	Settings       string   `json:"settings" form:"settings"`
 	StreamSettings string   `json:"streamSettings" form:"streamSettings"`

frontend/src/generated/zod.ts

@@ -291,7 +291,7 @@ export const InboundSchema = z.object({
   lastTrafficResetTime: z.number().int(),
   listen: z.string(),
   nodeId: z.number().int().nullable().optional(),
-  port: z.number().int().min(1).max(65535),
+  port: z.number().int().min(0).max(65535),
   protocol: z.enum(['vmess', 'vless', 'trojan', 'shadowsocks', 'wireguard', 'hysteria', 'http', 'mixed', 'tunnel', 'tun']),
   remark: z.string(),
   settings: z.unknown(),

frontend/src/pages/inbounds/form/InboundFormModal.tsx

@@ -161,6 +161,8 @@ export default function InboundFormModal({
   const streamEnabled = canEnableStream({ protocol });
 
   const wPort = Form.useWatch('port', form);
+  const wListen = (Form.useWatch('listen', form) ?? '') as string;
+  const isUdsListen = wListen.startsWith('/');
   const wNodeId = Form.useWatch('nodeId', form) ?? null;
   const wTag = Form.useWatch('tag', form) ?? '';
   const wSsNetwork = Form.useWatch(['settings', 'network'], form);
@@ -488,7 +490,7 @@ export default function InboundFormModal({
         label={t('pages.inbounds.port')}
         rules={[antdRule(InboundFormBaseSchema.shape.port, t)]}
       >
-        <InputNumber min={1} max={65535} />
+        <InputNumber min={isUdsListen ? 0 : 1} max={65535} />
       </Form.Item>
 
       <Form.Item

frontend/src/schemas/api/inbound.ts

@@ -1,6 +1,6 @@
 import { z } from 'zod';
 
-import { PortSchema, SniffingSchema } from '@/schemas/primitives';
+import { InboundPortSchema, SniffingSchema } from '@/schemas/primitives';
 import { InboundSettingsSchema } from '@/schemas/protocols/inbound';
 import { SecuritySettingsSchema } from '@/schemas/protocols/security';
 import { NetworkSettingsSchema, StreamExtrasSchema } from '@/schemas/protocols/stream';
@@ -32,7 +32,7 @@ export const InboundCoreSchema = z.object({
   enable: z.boolean().default(true),
   expiryTime: z.number().int().default(0),
   listen: z.string().default(''),
-  port: PortSchema,
+  port: InboundPortSchema,
   tag: z.string().default(''),
   sniffing: SniffingSchema.default({
     enabled: false,

frontend/src/schemas/forms/inbound-form.ts

@@ -1,6 +1,6 @@
 import { z } from 'zod';
 
-import { PortSchema, SniffingSchema } from '@/schemas/primitives';
+import { InboundPortSchema, SniffingSchema } from '@/schemas/primitives';
 import { InboundSettingsSchema } from '@/schemas/protocols/inbound';
 import { SecuritySettingsSchema } from '@/schemas/protocols/security';
 import { NetworkSettingsSchema, StreamExtrasSchema } from '@/schemas/protocols/stream';
@@ -44,7 +44,7 @@ export type InboundDbFields = z.infer<typeof InboundDbFieldsSchema>;
 export const InboundFormBaseSchema = z.object({
   remark: z.string().default(''),
   enable: z.boolean().default(true),
-  port: PortSchema,
+  port: InboundPortSchema,
   listen: z.string().default(''),
   tag: z.string().default(''),
   expiryTime: z.number().int().default(0),

frontend/src/schemas/primitives/port.ts

@@ -2,3 +2,6 @@ import { z } from 'zod';
 
 export const PortSchema = z.number().int().min(1).max(65535);
 export type Port = z.infer<typeof PortSchema>;
+
+export const InboundPortSchema = z.number().int().min(0).max(65535);
+export type InboundPort = z.infer<typeof InboundPortSchema>;