tasklist远程获取进程报错账号密码错误

tasklist 远程获取进程报错账号密码错误

问题描述：写了一个监控程序，需要远程获取 windows 系统下某个进程是否在运行？因为业务需要这个程序需要注冊为 windows 服务（如果直接命令行执行，可能其他人会误操作推出程序，很多人同时会用这服务器）。

服务注冊用的是 github.com/kardianos/service 包。

执行命令的部分代码

args := []string{"/C", "tasklist", "/s", "127.0.0.1", "/u", "Administrator", "/p", "password", "/fi", "IMAGENAME eq ****.exe"}
cmd := exec.Command("cmd.exe", args...)
logger.Info(fmt.Sprintf("%+v", cmd))
var out bytes.Buffer
var outErr bytes.Buffer
cmd.Stdout = &out
cmd.Stderr = &outErr
if err := cmd.Run(); err != nil {
// 如果注冊成服务，这里返回的数据会乱码，返回的是GBK格式。
utf8Data := outErr.Bytes()
if isGBK(outErr.Bytes()) {
utf8Data, _ = simplifiedchinese.GBK.NewDecoder().Bytes(outErr.Bytes())
logger.Info(fmt.Sprintf("outErr isUtf8 %v", isUtf8(utf8Data)))
}
logger.Info(fmt.Sprintf("outErr isGBK %v", isGBK(outErr.Bytes())))
logger.Info(fmt.Sprintf("outErr isUtf8 %v", isUtf8(outErr.Bytes())))
logger.Info(fmt.Sprintf("tasklist %v", string(utf8Data)))
}
logger.Info(fmt.Sprintf("out isGBK %v", isGBK(out.Bytes())))
logger.Info(fmt.Sprintf("out isUtf8 %v", isUtf8(out.Bytes())))
logger.Info(fmt.Sprintf("%v", out.String()))
logger.Info("info app count", zap.Int("count:", strings.Count(out.String(), "*****.exe")))

返回信息大致是这样，乱码部分转码后为账号或密码错误。

明明账号密码都没问题，直接命令行执行都是正常的，这情况真的是有点摸不着头脑。
看了一遍 github.com/kardianos/service 的源码，发现注冊服务是可以设置服务的运行用户的。


// Config provides the setup for a Service. The Name field is required.
type Config struct {
Name string // Required name of the service. No spaces suggested.
DisplayName string // Display name, spaces allowed.
Description string // Long description of service.
UserName string // Run as username.
Arguments []string // Run with arguments.
// Optional field to specify the executable for service.
// If empty the current executable is used.
Executable string
// Array of service dependencies.
// Not yet fully implemented on Linux or OS X:
// 1. Support linux-systemd dependencies, just put each full line as the
// element of the string array, such as
// "After=network.target syslog.target"
// "Requires=syslog.target"
// Note, such lines will be directly appended into the [Unit] of
// the generated service config file, will not check their correctness.
Dependencies []string
// The following fields are not supported on Windows.
WorkingDirectory string // Initial working directory.
ChRoot string
// System specific options.
// * OS X
// - LaunchdConfig string () - Use custom launchd config
// - KeepAlive bool (true)
// - RunAtLoad bool (false)
// - UserService bool (false) - Install as a current user service.
// - SessionCreate bool (false) - Create a full user session.
// * POSIX
// - SystemdScript string () - Use custom systemd script
// - UpstartScript string () - Use custom upstart script
// - SysvScript string () - Use custom sysv script
// - RunWait func() (wait for SIGNAL) - Do not install signal but wait for this function to return.
// - ReloadSignal string () [USR1, ...] - Signal to send on reaload.
// - PIDFile string () [/run/prog.pid] - Location of the PID file.
// - LogOutput bool (false) - Redirect StdErr & StandardOutPath to files.
// - Restart string (always) - How shall service be restarted.
// - SuccessExitStatus string () - The list of exit status that shall be considered as successful,
// in addition to the default ones.
// * Linux (systemd)
// - LimitNOFILE int - Maximum open files (ulimit -n) (https://serverfault.com/questions/628610/increasing-nproc-for-processes-launched-by-systemd-on-centos-7)
// * Windows
// - DelayedAutoStart bool (false) - after booting start this service after some delay
Option KeyValue
}

经过尝试之后，账号密码还是没有生效。在 issues 里面，也没找到什么有用的信息。

正在我一筹莫展之际，我突然想起 windows 服务在注冊好之后是可以设置账号密码的：

一顿操作重启服务，果然服务可以正常执行了。

问题解决，今天又是愉快的一天！！