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手写HTTP抓包工具——可视化界面

项目	描述
语言	golang
可视化	fynev2
功能	代理抓包、重发、记录

1. 示例

1.1 主界面

1.2 开启反向代理

1.3 抓包

1.4 历史记录

1.5 重发

2. 核心代码

2.1 GUI

func (cf *Config) CreateUi() {myApp := app.New()mainWin := myApp.NewWindow("Request Handling Tool v1.0")// 创建数据绑定对象cf.MainWin = &mainWin// 创建可以多行输入的 Entry 并绑定数据requestEntry := widget.NewEntryWithData(types.RequestData)requestEntry.MultiLine = truerequestEntry.Wrapping = fyne.TextWrapBreakresponseEntry := widget.NewEntryWithData(types.ResponseData)responseEntry.MultiLine = trueresponseEntry.Wrapping = fyne.TextWrapBreakErrEntry := widget.NewEntryWithData(types.ErrData)ErrEntry.MultiLine = trueErrEntry.Wrapping = fyne.TextWrapBreakhisreq1Entry := widget.NewEntryWithData(types.History_RequestD)hisreq1Entry.MultiLine = truehisreq1Entry.Wrapping = fyne.TextWrapBreakhisres2Entry := widget.NewEntryWithData(types.History_ResponseD)hisres2Entry.MultiLine = truehisres2Entry.Wrapping = fyne.TextWrapBreakrepeat_req1Entry := widget.NewEntryWithData(types.Repeat_RequestD)repeat_req1Entry.MultiLine = truerepeat_req1Entry.Wrapping = fyne.TextWrapBreakrepeat_res2Entry := widget.NewEntryWithData(types.Repeat_ResponseD)repeat_res2Entry.MultiLine = truerepeat_res2Entry.Wrapping = fyne.TextWrapBreaktargetAddrEntry := widget.NewEntryWithData(types.TargetAD)types.TargetAD.Set("127.0.0.1:3443")serverAddrEntry := widget.NewEntryWithData(types.ServerAD)types.ServerAD.Set("0.0.0.0:8089")targetPMEntry := widget.NewEntryWithData(types.TargetPM)types.TargetPM.Set("https")targetAddrLabel := widget.NewLabel("TargetAddr:")serverAddrLabel := widget.NewLabel("ServerAddr:")targetPMLabel := widget.NewLabel("TargetPM:")// 设置请求和响应 Entry 控件铺满父容器check1 := widget.NewCheckWithData("AutoSend", types.AutoSData)check1.SetChecked(true)check_history := widget.NewCheckWithData("HistoryOK", types.HistoryOK)check_history.SetChecked(true)sendButton := widget.NewButton("Send", func() {cf.GUI_Send()})send2Button := widget.NewButton("SendRAW", func() {cf.GUI_Send_repeat()})discardButton := widget.NewButton("Discard", func() {cf.GUI_Discard()})nextButton := widget.NewButton("Next", func() {cf.GUI_Next()})sRepeatButton := widget.NewButton(">>Repeat", func() {cf.GUI_sRepeat()})clearButton := widget.NewButton("ClearHistory", func() {cf.GUI_Clear()})_history_dir_Button := widget.NewButton("ClearHistoryDirFile", func() {cf.GUI_history_dir_Button()})nextButton.Disable()sendButton.Disable()discardButton.Disable()cf.Sendbt = sendButtoncf.Nextbt = nextButtoncf.Discardbt = discardButtonOKconfig := widget.NewButton("Save", func() {cf.GUI_Save_config()})OpenProxyconfig := widget.NewButton("OpenProxy", func() {cf.GUI_OpenProxyconfig()})CloseProxyconfig := widget.NewButton("CloseProxy", func() {cf.GUI_CloseProxyconfig()})CloseProxyconfig.Disable()OKconfig.Disable()cf.OpenProxybt = OpenProxyconfigcf.CloseProxybt = CloseProxyconfigcf.Savebt = OKconfig// 创建 Grid 布局grid_capture := container.NewGridWithColumns(3,container.NewStack(requestEntry),container.NewStack(responseEntry),container.NewVBox(check1, sendButton, discardButton, nextButton, sRepeatButton),)grid_config := container.NewGridWithColumns(3,container.NewVBox(container.NewVBox(targetAddrLabel, targetAddrEntry),container.NewVBox(serverAddrLabel, serverAddrEntry),container.NewVBox(targetPMLabel, targetPMEntry)),container.NewVBox(check_history, OKconfig, OpenProxyconfig, CloseProxyconfig, clearButton, _history_dir_Button),container.NewStack(ErrEntry),)table := widget.NewTable(// 返回表格的行数和列数func() (int, int) {return len(types.History_Data), len(types.History_Data[0]) // 第三列为按钮},// 返回每个单元格的 CanvasObjectfunc() fyne.CanvasObject {entry := widget.NewEntry()ccButton := widget.NewButton("Select", nil)repeatButton := widget.NewButton(">>Repeat", nil)buttonContainer := container.NewGridWithColumns(2, ccButton, repeatButton)en1 := container.NewVBox(entry, buttonContainer)return en1},// 更新每个单元格的内容func(id widget.TableCellID, obj fyne.CanvasObject) {en1 := obj.(*fyne.Container)entry := en1.Objects[0].(*widget.Entry)buttonContainer := en1.Objects[1].(*fyne.Container)ccButton := buttonContainer.Objects[0].(*widget.Button)repeatButton := buttonContainer.Objects[1].(*widget.Button)if id.Col <= 1 { // 前两列显示数据entry.Show()           // 显示 EntrybuttonContainer.Hide() // 隐藏按钮容器entry.SetText(types.History_Data[id.Row][id.Col])} else if id.Col > 1 { // 第三列显示按钮entry.Hide()           // 隐藏 EntrybuttonContainer.Show() // 显示按钮容器ccButton.OnTapped = func(row int) func() {return func() {cf.GUI_Table_bt(row)}}(id.Row)repeatButton.OnTapped = func(row int) func() {return func() {cf.GUI_Table_Repeat_bt(row)}}(id.Row)}})cf.Table_history = table// 创建带有垂直滚动条的容器tableContainer := container.NewVScroll(table)// 创建histroy布局grid_history := container.NewGridWithRows(2,container.NewStack(tableContainer),container.NewGridWithColumns(2,container.NewStack(hisreq1Entry),container.NewStack(hisres2Entry),),)grid_repeat := container.NewGridWithColumns(3,container.NewStack(repeat_req1Entry),container.NewStack(repeat_res2Entry),container.NewVBox(send2Button),)tab2 := container.NewTabItem("capture", grid_capture)tab1 := container.NewTabItem("config", grid_config)tab3 := container.NewTabItem("history", grid_history)tab4 := container.NewTabItem("repeat", grid_repeat)tabContainer := container.NewAppTabs(tab1, tab2, tab3, tab4)tabContainer.SetTabLocation(container.TabLocationTop)// 布局// 拦截关闭事件mainWin.SetCloseIntercept(func() {mainWin.Hide() // 隐藏窗口})mainWin.SetContent(tabContainer)// 添加窗口大小变化监听器mainWin.Resize(fyne.NewSize(800, 600))mainWin.ShowAndRun()}

2.1 抓包

func Run(conf *Config) {for {select {case <-conf.RunTH:types.ErrMainData += fmt.Sprintln("[+] Close-Proxy-OK")// fmt.Println(1)returndefault:// fmt.Println(0)}if conf.ServerAddr == "" || conf.TargetAddr == "" || conf.TargetPM == "" || conf.Nextbt == nil {time.Sleep(2 * time.Second)types.ErrMainData += fmt.Sprintln("[-] Parameters not saved or initialization not completed")} else {break}}Init(conf)// 创建 HTTP 处理函数的中间件middleware := func(http.Handler) http.Handler {return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {types.CHT <- truehisD1 := []string{}hisD2 := []string{}defer func() { <-types.CHT }()// 获取原始请求的字符串表示dump, err := httputil.DumpRequest(r, true)utils.HandleErr(utils.GCFN(), err)dump, err = conf.HostFix(dump)utils.HandleErr(utils.GCFN(), err)if ok, err := types.HistoryOK.Get(); ok {utils.HandleErr(utils.GCFN(), err)hisD1 = append(hisD1, string(dump))hisD2 = append(hisD2, fmt.Sprintf("%v %v", r.Method, r.URL.String()))}// // 打印原始请求字符串// fmt.Printf("\033[32m%s\033[0m\n", dump)if ok, err := types.AutoSData.Get(); !ok {utils.HandleErr(utils.GCFN(), err)err = types.RequestData.Set(string(dump))utils.HandleErr(utils.GCFN(), err)conf.Cf_Enable()CC:for {select {case <-types.SendCH:rdata, err := types.RequestData.Get()utils.HandleErr(utils.GCFN(), err)// 将 rdata 解析成 *http.Request 对象r, err = http.ReadRequest(bufio.NewReader(bytes.NewBufferString(rdata)))utils.HandleErr(utils.GCFN(), err)break CCcase <-types.DiscardCH:returndefault:}time.Sleep(100 * time.Millisecond)}} else {err = types.RequestData.Set("")utils.HandleErr(utils.GCFN(), err)err = types.ResponseData.Set("")utils.HandleErr(utils.GCFN(), err)}recorder := httptest.NewRecorder()recorder.Header().Add("Waf", "Coraza-v3")// 使用反向代理转发请求conf.Proxy.ServeHTTP(recorder, r)// 创建 http.Response 对象response := recorder.Result()// 使用 httputil.DumpResponse 来获取完整响应包res1, err := httputil.DumpResponse(response, true)utils.HandleErr(utils.GCFN(), err)if ok, _ := types.HistoryOK.Get(); ok {hisD1 = append(hisD1, string(res1))ff := utils.Wrtie_history_response(hisD1, conf.TargetAddr)hisD2 = append(hisD2, ff)types.History_Data = append(types.History_Data, hisD2)}if ok, err := types.AutoSData.Get(); !ok {utils.HandleErr(utils.GCFN(), err)err = types.ResponseData.Set(string(res1))utils.HandleErr(utils.GCFN(), err)}conf.TxProcessResponse(recorder, w, r)if ok, err := types.AutoSData.Get(); !ok {utils.HandleErr(utils.GCFN(), err)BB:for {select {case <-types.NextCH:err = types.RequestData.Set("")utils.HandleErr(utils.GCFN(), err)err = types.ResponseData.Set("")utils.HandleErr(utils.GCFN(), err)break BBdefault:}time.Sleep(100 * time.Millisecond)}} else {err = types.RequestData.Set("")utils.HandleErr(utils.GCFN(), err)err = types.ResponseData.Set("")utils.HandleErr(utils.GCFN(), err)conf.Cf_Disable()}})}server := &http.Server{Addr:    conf.ServerAddr,Handler: middleware(http.DefaultServeMux), // 使用中间件包裹默认的 ServeMux}go func() {types.ErrMainData += fmt.Sprintf("[+] Starting server at %v\n", conf.ServerAddr)if err := server.ListenAndServe(); err != nil && err != http.ErrServerClosed {utils.HandleErr(utils.GCFN(), err)}}()AA:for {select {case <-conf.RunTH:break AAdefault:time.Sleep(500 * time.Millisecond)}}// 通过 context 实现优雅关闭ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)defer cancel()if err := server.Shutdown(ctx); err != nil {types.ErrMainData += fmt.Sprintf("[-] Server shutdown failed:%v\n", err)if err := server.Close(); err != nil {types.ErrMainData += fmt.Sprintf("[!] Server Close failed:%v\n", err)} else {types.ErrMainData += fmt.Sprintln("[+] Close-Proxy-OK")}} else {types.ErrMainData += fmt.Sprintln("[+] Close-Proxy-OK")}}

3. 结语

3.1 传送门

MiniBurp.exe(仅供学习)