338 lines
9.5 KiB
Go
338 lines
9.5 KiB
Go
package service
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import (
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"encoding/json"
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"errors"
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"runtime"
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"sync"
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"strconv"
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"x-ui/logger"
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"x-ui/xray"
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json_util "x-ui/util/json_util"
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"go.uber.org/atomic"
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)
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var (
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p *xray.Process
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lock sync.Mutex
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isNeedXrayRestart atomic.Bool // Indicates that restart was requested for Xray
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isManuallyStopped atomic.Bool // Indicates that Xray was stopped manually from the panel
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result string
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)
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type XrayService struct {
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inboundService InboundService
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settingService SettingService
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xrayAPI xray.XrayAPI
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}
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// IsXrayRunning 检查 Xray 是否正在运行
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func (s *XrayService) IsXrayRunning() bool {
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return p != nil && p.IsRunning()
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}
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// 中文注释:
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// 新增 GetApiPort 函数。
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// 这个函数的作用是安全地返回当前 Xray 进程正在监听的 API 端口号。
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// 如果 Xray 没有运行 (p == nil)，则返回 0。
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// 我们的后台任务将调用这个函数来获取端口号。
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func (s *XrayService) GetApiPort() int {
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if p == nil {
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return 0
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}
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return p.GetAPIPort()
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}
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func (s *XrayService) GetXrayErr() error {
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if p == nil {
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return nil
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}
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err := p.GetErr()
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if runtime.GOOS == "windows" && err.Error() == "exit status 1" {
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// exit status 1 on Windows means that Xray process was killed
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// as we kill process to stop in on Windows, this is not an error
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return nil
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}
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return err
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}
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func (s *XrayService) GetXrayResult() string {
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if result != "" {
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return result
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}
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if s.IsXrayRunning() {
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return ""
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}
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if p == nil {
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return ""
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}
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result = p.GetResult()
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if runtime.GOOS == "windows" && result == "exit status 1" {
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// exit status 1 on Windows means that Xray process was killed
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// as we kill process to stop in on Windows, this is not an error
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return ""
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}
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return result
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}
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func (s *XrayService) GetXrayVersion() string {
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if p == nil {
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return "Unknown"
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}
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return p.GetVersion()
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}
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func RemoveIndex(s []any, index int) []any {
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return append(s[:index], s[index+1:]...)
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}
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func (s *XrayService) GetXrayConfig() (*xray.Config, error) {
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templateConfig, err := s.settingService.GetXrayConfigTemplate()
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if err != nil {
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return nil, err
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}
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xrayConfig := &xray.Config{}
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err = json.Unmarshal([]byte(templateConfig), xrayConfig)
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if err != nil {
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return nil, err
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}
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s.inboundService.AddTraffic(nil, nil)
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inbounds, err := s.inboundService.GetAllInbounds()
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if err != nil {
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return nil, err
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}
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// =================================================================
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// 中文注释: 动态限速核心逻辑 - 第一步: 收集所有限速值
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// =================================================================
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// 创建一个 map 用于存储所有出现过的、不为0的限速值
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uniqueSpeeds := make(map[int]bool)
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for _, inbound := range inbounds {
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if !inbound.Enable {
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continue
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}
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// 获取该入站下的所有客户端设置
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clients, _ := s.inboundService.GetClients(inbound)
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for _, client := range clients {
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if client.SpeedLimit > 0 {
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uniqueSpeeds[client.SpeedLimit] = true
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}
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}
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}
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// =================================================================
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// 中文注释: 动态限速核心逻辑 - 第二步: 根据收集到的限速值，动态生成 Policy Levels
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// =================================================================
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// 初始化 policy levels，并加入默认的 level 0 (不限速)
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policyLevels := make(map[string]interface{})
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policyLevels["0"] = map[string]interface{}{"handshake": 8, "connIdle": 500}
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// 遍历所有收集到的限速值
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for speed := range uniqueSpeeds {
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// 为每个速率创建一个 level，level 的名字就是速率的字符串形式
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// 例如，速率 1024 KB/s 对应 level "1024"
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policyLevels[strconv.Itoa(speed)] = map[string]interface{}{
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"downlinkOnly": speed, // 限制下载速度
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"uplinkOnly": speed, // 同时限制上传速度 (您可以根据需要调整)
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}
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}
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// 将生成的 policy 应用到 Xray 配置中
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policyJSON, err := json.Marshal(map[string]interface{}{
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"levels": policyLevels,
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})
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if err != nil {
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return nil, err
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}
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xrayConfig.Policy = json_util.RawMessage(policyJSON)
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// =================================================================
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// 中文注释: 在这里增加日志，打印最终生成的限速策略
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// =================================================================
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if len(uniqueSpeeds) > 0 {
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finalPolicyLog, _ := json.Marshal(policyLevels)
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logger.Infof("已为Xray动态生成〔限速策略〕: %s", string(finalPolicyLog))
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}
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// =================================================================
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// =================================================================
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// 中文注释: 动态限速核心逻辑 - 第三步: 为设置了限速的用户分配对应的 Level
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// =================================================================
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for _, inbound := range inbounds {
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if !inbound.Enable {
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continue
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}
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// get settings clients
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settings := map[string]any{}
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json.Unmarshal([]byte(inbound.Settings), &settings)
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clients, ok := settings["clients"].([]any)
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if ok {
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// check users active or not
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clientStats := inbound.ClientStats
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for _, clientTraffic := range clientStats {
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indexDecrease := 0
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for index, client := range clients {
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c := client.(map[string]any)
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if c["email"] == clientTraffic.Email {
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if !clientTraffic.Enable {
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clients = RemoveIndex(clients, index-indexDecrease)
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indexDecrease++
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logger.Infof("Remove Inbound User %s due to expiration or traffic limit", c["email"])
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}
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}
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}
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}
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// clear client config for additional parameters
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var final_clients []any
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for _, client := range clients {
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c := client.(map[string]any)
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if enable, ok := c["enable"].(bool); ok && !enable { continue }
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// =================================================================
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// 这里的逻辑是准备将 client 对象提交给 Xray-core。
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// 我们需要将 speedLimit 转换为 Xray 认识的 level 字段。
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// 并且，我们不再删除任何字段，因为 Xray-core 会自动忽略它不认识的字段。
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// 这样可以确保包含 speedLimit 的完整用户信息被用于生成配置。
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// =================================================================
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if speedLimit, ok := c["speedLimit"].(float64); ok && speedLimit > 0 {
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c["level"] = int(speedLimit)
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// 【新增功能】在这里添加日志记录
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if email, emailOk := c["email"].(string); emailOk {
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logger.Infof("为用户 %s 应用〔独立限速〕: %d KB/s", email, int(speedLimit))
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}
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} else {
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c["level"] = 0
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}
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if c["flow"] == "xtls-rprx-vision-udp443" {
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c["flow"] = "xtls-rprx-vision"
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}
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final_clients = append(final_clients, c)
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}
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settings["clients"] = final_clients
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modifiedSettings, err := json.MarshalIndent(settings, "", " ")
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if err != nil {
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return nil, err
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}
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inbound.Settings = string(modifiedSettings)
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}
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if len(inbound.StreamSettings) > 0 {
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// Unmarshal stream JSON
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var stream map[string]any
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json.Unmarshal([]byte(inbound.StreamSettings), &stream)
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// Remove the "settings" field under "tlsSettings" and "realitySettings"
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tlsSettings, ok1 := stream["tlsSettings"].(map[string]any)
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realitySettings, ok2 := stream["realitySettings"].(map[string]any)
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if ok1 || ok2 {
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if ok1 {
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delete(tlsSettings, "settings")
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} else if ok2 {
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delete(realitySettings, "settings")
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}
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}
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delete(stream, "externalProxy")
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newStream, err := json.MarshalIndent(stream, "", " ")
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if err != nil {
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return nil, err
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}
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inbound.StreamSettings = string(newStream)
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}
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inboundConfig := inbound.GenXrayInboundConfig()
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xrayConfig.InboundConfigs = append(xrayConfig.InboundConfigs, *inboundConfig)
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}
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return xrayConfig, nil
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}
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func (s *XrayService) GetXrayTraffic() ([]*xray.Traffic, []*xray.ClientTraffic, error) {
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if !s.IsXrayRunning() {
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err := errors.New("xray is not running")
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logger.Debug("Attempted to fetch Xray traffic, but Xray is not running:", err)
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return nil, nil, err
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}
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apiPort := p.GetAPIPort()
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s.xrayAPI.Init(apiPort)
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defer s.xrayAPI.Close()
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traffic, clientTraffic, err := s.xrayAPI.GetTraffic(true)
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if err != nil {
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logger.Debug("Failed to fetch Xray traffic:", err)
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return nil, nil, err
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}
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return traffic, clientTraffic, nil
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}
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func (s *XrayService) RestartXray(isForce bool) error {
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lock.Lock()
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defer lock.Unlock()
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logger.Debug("restart Xray, force:", isForce)
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isManuallyStopped.Store(false)
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xrayConfig, err := s.GetXrayConfig()
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if err != nil {
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return err
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}
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if s.IsXrayRunning() {
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if !isForce && p.GetConfig().Equals(xrayConfig) && !isNeedXrayRestart.Load() {
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logger.Debug("It does not need to restart Xray")
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return nil
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}
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p.Stop()
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}
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p = xray.NewProcess(xrayConfig)
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result = ""
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err = p.Start()
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if err != nil {
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return err
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}
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return nil
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}
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func (s *XrayService) StopXray() error {
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lock.Lock()
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defer lock.Unlock()
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isManuallyStopped.Store(true)
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logger.Debug("Attempting to stop Xray...")
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if s.IsXrayRunning() {
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return p.Stop()
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}
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return errors.New("xray is not running")
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}
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func (s *XrayService) SetToNeedRestart() {
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isNeedXrayRestart.Store(true)
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}
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func (s *XrayService) IsNeedRestartAndSetFalse() bool {
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return isNeedXrayRestart.CompareAndSwap(true, false)
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}
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// Check if Xray is not running and wasn't stopped manually, i.e. crashed
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func (s *XrayService) DidXrayCrash() bool {
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return !s.IsXrayRunning() && !isManuallyStopped.Load()
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}
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