Y-Panel/xray/api.go
2025-09-20 23:30:28 +08:00

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package xray
import (
"context"
"encoding/json"
"fmt"
"regexp"
"time"
"math"
"x-ui/logger"
"x-ui/util/common"
"github.com/xtls/xray-core/app/proxyman/command"
statsService "github.com/xtls/xray-core/app/stats/command"
"github.com/xtls/xray-core/common/protocol"
"github.com/xtls/xray-core/common/serial"
"github.com/xtls/xray-core/infra/conf"
"github.com/xtls/xray-core/proxy/shadowsocks"
"github.com/xtls/xray-core/proxy/shadowsocks_2022"
"github.com/xtls/xray-core/proxy/trojan"
"github.com/xtls/xray-core/proxy/vless"
"github.com/xtls/xray-core/proxy/vmess"
"google.golang.org/grpc"
"google.golang.org/grpc/credentials/insecure"
)
type XrayAPI struct {
HandlerServiceClient *command.HandlerServiceClient
StatsServiceClient *statsService.StatsServiceClient
grpcClient *grpc.ClientConn
isConnected bool
}
func (x *XrayAPI) Init(apiPort int) error {
if apiPort <= 0 || apiPort > math.MaxUint16 {
return fmt.Errorf("invalid Xray API port: %d", apiPort)
}
addr := fmt.Sprintf("127.0.0.1:%d", apiPort)
conn, err := grpc.NewClient(addr, grpc.WithTransportCredentials(insecure.NewCredentials()))
if err != nil {
return fmt.Errorf("failed to connect to Xray API: %w", err)
}
x.grpcClient = conn
x.isConnected = true
hsClient := command.NewHandlerServiceClient(conn)
ssClient := statsService.NewStatsServiceClient(conn)
x.HandlerServiceClient = &hsClient
x.StatsServiceClient = &ssClient
return nil
}
func (x *XrayAPI) Close() {
if x.grpcClient != nil {
x.grpcClient.Close()
}
x.HandlerServiceClient = nil
x.StatsServiceClient = nil
x.isConnected = false
}
func (x *XrayAPI) AddInbound(inbound []byte) error {
client := *x.HandlerServiceClient
conf := new(conf.InboundDetourConfig)
err := json.Unmarshal(inbound, conf)
if err != nil {
logger.Debug("Failed to unmarshal inbound:", err)
return err
}
config, err := conf.Build()
if err != nil {
logger.Debug("Failed to build inbound Detur:", err)
return err
}
inboundConfig := command.AddInboundRequest{Inbound: config}
_, err = client.AddInbound(context.Background(), &inboundConfig)
return err
}
func (x *XrayAPI) DelInbound(tag string) error {
client := *x.HandlerServiceClient
_, err := client.RemoveInbound(context.Background(), &command.RemoveInboundRequest{
Tag: tag,
})
return err
}
func (x *XrayAPI) AddUser(Protocol string, inboundTag string, user map[string]any) error {
var account *serial.TypedMessage
switch Protocol {
case "vmess":
account = serial.ToTypedMessage(&vmess.Account{
Id: user["id"].(string),
})
case "vless":
account = serial.ToTypedMessage(&vless.Account{
Id: user["id"].(string),
Flow: user["flow"].(string),
})
case "trojan":
account = serial.ToTypedMessage(&trojan.Account{
Password: user["password"].(string),
})
case "shadowsocks":
var ssCipherType shadowsocks.CipherType
switch user["cipher"].(string) {
case "aes-128-gcm":
ssCipherType = shadowsocks.CipherType_AES_128_GCM
case "aes-256-gcm":
ssCipherType = shadowsocks.CipherType_AES_256_GCM
case "chacha20-poly1305", "chacha20-ietf-poly1305":
ssCipherType = shadowsocks.CipherType_CHACHA20_POLY1305
case "xchacha20-poly1305", "xchacha20-ietf-poly1305":
ssCipherType = shadowsocks.CipherType_XCHACHA20_POLY1305
default:
ssCipherType = shadowsocks.CipherType_NONE
}
if ssCipherType != shadowsocks.CipherType_NONE {
account = serial.ToTypedMessage(&shadowsocks.Account{
Password: user["password"].(string),
CipherType: ssCipherType,
})
} else {
account = serial.ToTypedMessage(&shadowsocks_2022.ServerConfig{
Key: user["password"].(string),
Email: user["email"].(string),
})
}
default:
return nil
}
// 〔中文注释〕: (修改点) 创建一个有5秒超时限制的上下文Context
// 这确保了如果 Xray-Core API 因为某些原因没有及时响应,
// 这个操作不会永久阻塞而是在5秒后自动失败从而提高程序的健壮性。
// 这与 RemoveUser 函数中的超时设置保持了一致。
ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
defer cancel()
client := *x.HandlerServiceClient
_, err := client.AlterInbound(ctx, &command.AlterInboundRequest{ // 〔中文注释〕: (修改点) 使用上面创建的带超时的 ctx
Tag: inboundTag,
Operation: serial.ToTypedMessage(&command.AddUserOperation{
User: &protocol.User{
Email: user["email"].(string),
Account: account,
},
}),
})
// 〔中文注释〕: (修改点) 增加更详细的错误日志,方便排查问题。
if err != nil {
emailStr, _ := user["email"].(string)
return fmt.Errorf("failed to add user '%s' to inbound '%s': %w", emailStr, inboundTag, err)
}
return nil
}
func (x *XrayAPI) RemoveUser(inboundTag, email string) error {
ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
defer cancel()
op := &command.RemoveUserOperation{Email: email}
req := &command.AlterInboundRequest{
Tag: inboundTag,
Operation: serial.ToTypedMessage(op),
}
_, err := (*x.HandlerServiceClient).AlterInbound(ctx, req)
if err != nil {
return fmt.Errorf("failed to remove user: %w", err)
}
return nil
}
func (x *XrayAPI) GetTraffic(reset bool) ([]*Traffic, []*ClientTraffic, error) {
if x.grpcClient == nil {
return nil, nil, common.NewError("xray api is not initialized")
}
trafficRegex := regexp.MustCompile(`(inbound|outbound)>>>([^>]+)>>>traffic>>>(downlink|uplink)`)
clientTrafficRegex := regexp.MustCompile(`user>>>([^>]+)>>>traffic>>>(downlink|uplink)`)
ctx, cancel := context.WithTimeout(context.Background(), time.Second*10)
defer cancel()
if x.StatsServiceClient == nil {
return nil, nil, common.NewError("xray StatusServiceClient is not initialized")
}
resp, err := (*x.StatsServiceClient).QueryStats(ctx, &statsService.QueryStatsRequest{Reset_: reset})
if err != nil {
logger.Debug("Failed to query Xray stats:", err)
return nil, nil, err
}
tagTrafficMap := make(map[string]*Traffic)
emailTrafficMap := make(map[string]*ClientTraffic)
for _, stat := range resp.GetStat() {
if matches := trafficRegex.FindStringSubmatch(stat.Name); len(matches) == 4 {
processTraffic(matches, stat.Value, tagTrafficMap)
} else if matches := clientTrafficRegex.FindStringSubmatch(stat.Name); len(matches) == 3 {
processClientTraffic(matches, stat.Value, emailTrafficMap)
}
}
return mapToSlice(tagTrafficMap), mapToSlice(emailTrafficMap), nil
}
func processTraffic(matches []string, value int64, trafficMap map[string]*Traffic) {
isInbound := matches[1] == "inbound"
tag := matches[2]
isDown := matches[3] == "downlink"
if tag == "api" {
return
}
traffic, ok := trafficMap[tag]
if !ok {
traffic = &Traffic{
IsInbound: isInbound,
IsOutbound: !isInbound,
Tag: tag,
}
trafficMap[tag] = traffic
}
if isDown {
traffic.Down = value
} else {
traffic.Up = value
}
}
func processClientTraffic(matches []string, value int64, clientTrafficMap map[string]*ClientTraffic) {
email := matches[1]
isDown := matches[2] == "downlink"
traffic, ok := clientTrafficMap[email]
if !ok {
traffic = &ClientTraffic{Email: email}
clientTrafficMap[email] = traffic
}
if isDown {
traffic.Down = value
} else {
traffic.Up = value
}
}
func mapToSlice[T any](m map[string]*T) []*T {
result := make([]*T, 0, len(m))
for _, v := range m {
result = append(result, v)
}
return result
}