How to use makeCommand method of ipc Package

Best Syzkaller code snippet using ipc.makeCommand

extraterm-launcher.go

Source:extraterm-launcher.go

1/*2 * Copyright 2021 Simon Edwards <simon@simonzone.com>3 *4 * This source code is licensed under the MIT license which is detailed in the LICENSE.txt file.5 */6package main7import (8	"encoding/json"9	"extraterm-launcher/internal/argsparser"10	"extraterm-launcher/internal/settings"11	"extraterm-launcher/internal/wordcase"12	"fmt"13	"io/ioutil"14	"net/http"15	"os"16	"os/exec"17	"path/filepath"18	"strconv"19	"strings"20	"time"21)22func main() {23	parsedArgs, errorString := argsparser.Parse(&os.Args)24	if len(errorString) != 0 {25		panic(errorString)26	}27	url := launchMainExecutable()28	exitCode := 029	if len(parsedArgs.BareArgs) > 0 {30		exitCode = runOpenWindowAtCommand(url, parsedArgs.BareArgs[0])31		if exitCode == 0 {32			exitCode = runShowWindowCommand(url)33		}34	} else if len(parsedArgs.Commands) == 0 {35		cwd, _ := os.Getwd()36		exitCode = runOpenWindowAtCommand(url, cwd)37		if exitCode == 0 {38			exitCode = runShowWindowCommand(url)39		}40	} else {41		exitCode = runAllCommands(url, parsedArgs)42	}43	os.Stdout.Sync()44	os.Exit(exitCode)45}46// Returns: URL to Extraterm's localhost IPC server47func launchMainExecutable() string {48	url := readIpcRunFile(settings.IpcRunPath())49	if url != "" {50		if ping(url) {51			return url52		}53	}54	return runMainExecutable()55}56func readIpcRunFile(ipcRunPath string) string {57	contentBytes, err := os.ReadFile(settings.IpcRunPath())58	if err != nil {59		return ""60	}61	content := string(contentBytes)62	parts := strings.Split(content, "\n")63	_, err = strconv.Atoi(parts[0])64	if err != nil {65		return ""66	}67	return parts[1]68}69// Returns: URL to Extraterm's localhost IPC server70func runMainExecutable() string {71	exePath, err := os.Executable()72	if err != nil {73		panic(err)74	}75	exePathDir := filepath.Dir(exePath)76	qodeExePath := filepath.Join(exePathDir, settings.QodeExePath)77	mainJsPath := filepath.Join(exePathDir, settings.MainJsPath)78	cmd := exec.Command(qodeExePath, mainJsPath)79	cmd.Stdout = os.Stdout80	cmd.Stderr = os.Stderr81	if err := cmd.Start(); err != nil {82		fmt.Fprintf(os.Stderr, "Unable to start the main Extraterm executable. %s\n", err)83		panic(nil)84	}85	return waitForMainExecutableToAppear(settings.IpcRunPath())86}87// Returns: URL to Extraterm's localhost IPC server or empty string if Extraterm didn't respond.88func waitForMainExecutableToAppear(ipcRunPath string) string {89	sleepTime := 250 * time.Millisecond90	retryTime := 10 * time.Second91	for i := time.Duration(0); i < retryTime; i += sleepTime {92		url := readIpcRunFile(ipcRunPath)93		if ping(url) {94			return url95		}96		time.Sleep(sleepTime)97	}98	return "" // Time-out99}100func runShowWindowCommand(url string) int {101	command := argsparser.MakeCommand()102	showCommandName := string("extraterm:window.show")103	command.CommandName = &showCommandName104	httpStatusCode, jsonResult := runCommand(url, command)105	if isErrorHttpStatusCode(httpStatusCode) {106		fmt.Println(jsonResult)107		return 1108	}109	return 0110}111func runOpenWindowAtCommand(url string, path string) int {112	command := argsparser.MakeCommand()113	newTerminalCommandName := string("extraterm:window.newTerminal")114	command.CommandName = &newTerminalCommandName115	command.CommandParameters["--working-directory"] = path116	httpStatusCode, jsonResult := runCommand(url, command)117	if isErrorHttpStatusCode(httpStatusCode) {118		fmt.Println(jsonResult)119		return 1120	}121	return 0122}123func runAllCommands(url string, parsedArgs *argsparser.CommandLineArguments) int {124	var window *string = nil125	if len(parsedArgs.Commands) != 1 {126		fmt.Println("[")127	}128	for i, command := range parsedArgs.Commands {129		if command.Window != nil {130			window = command.Window131		}132		if command.Window == nil {133			command.Window = window134		}135		httpStatusCode, jsonResult := runCommand(url, command)136		if isErrorHttpStatusCode(httpStatusCode) {137			fmt.Println(jsonResult)138			if len(parsedArgs.Commands) != 1 {139				fmt.Println("[")140			}141			return 1142		} else {143			fmt.Print(jsonResult)144			if i != len(parsedArgs.Commands)-1 {145				fmt.Println(",")146			} else {147				fmt.Println("")148			}149		}150	}151	if len(parsedArgs.Commands) != 1 {152		fmt.Println("[")153	}154	return 0155}156type CommandJson struct {157	CommandName *string           `json:"command"`158	Window      *string           `json:"window"`159	Args        map[string]string `json:"args"`160}161func runCommand(url string, command *argsparser.Command) (httpStatusCode int, jsonBody string) {162	payload := new(CommandJson)163	payload.CommandName = command.CommandName164	payload.Window = command.Window165	payload.Args = wordcase.KababCaseToCamelCaseMapKeys(command.CommandParameters)166	payloadString, _ := json.Marshal(payload)167	buf := strings.NewReader(string(payloadString))168	resp, err := http.Post(url+"/command", "application/json", buf)169	if err != nil {170		panic(err)171	}172	bodyBytes, err := ioutil.ReadAll(resp.Body)173	if err != nil {174		panic(err)175	}176	jsonResult := string(bodyBytes)177	return resp.StatusCode, jsonResult178}179func isErrorHttpStatusCode(httpStatusCode int) bool {180	return httpStatusCode < 200 || httpStatusCode >= 300181}182func ping(url string) bool {183	resp, err := http.Get(url + "/ping")184	if err != nil || resp.StatusCode != 200 {185		return false186	}187	bodyBytes, err := ioutil.ReadAll(resp.Body)188	message := string(bodyBytes)189	return message == "pong"190}...

ipc_priv_test.go

Source:ipc_priv_test.go

...5	"testing"6)7func TestOutputDeadline(t *testing.T) {8	// Run the command that leaks stderr to a child process.9	c, err := makeCommand(1, []string{10		"sh",11		"-c",12		"exec 1>&2; ( sleep 100; echo fail ) & echo done",13	}, &Config{}, nil, nil, nil, "/tmp")14	if err != nil {15		t.Fatal(err)16	}17	c.wait()18	out := <-c.readDone19	if string(out) != "done\n" {20		t.Errorf("Unexpected output: '%s'", out)21	}22}...

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