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create_launchd_service.go
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/
create_launchd_service.go
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package client
import (
"bytes"
"fmt"
"os/exec"
"path"
"strconv"
"text/template"
"github.com/pkg/errors"
)
type CreateLaunchdServiceOpts struct {
SsocaExec string
Directory string
Name string
OpenvpnExec string
RunAtLoad bool
LogDir string
}
func (s Service) CreateLaunchdService(opts CreateLaunchdServiceOpts) (string, string, error) {
configManager, err := s.runtime.GetConfigManager()
if err != nil {
return "", "", errors.Wrap(err, "getting config manager")
}
ssocaExec := opts.SsocaExec
if ssocaExec == "" {
ssocaExec = "ssoca" // TODO ssoca.exe
}
ssocaExec, err = exec.LookPath(ssocaExec)
if err != nil {
return "", "", errors.Wrap(err, "resolving ssoca executable")
}
openvpnExec := opts.OpenvpnExec
if openvpnExec == "" {
openvpnExec = "openvpn" // TODO openvpn.exe
}
openvpnExec, err = exec.LookPath(openvpnExec)
if err != nil {
return "", "", errors.Wrap(err, "resolving openvpn executable")
}
dir := opts.Directory
if dir == "" {
dir = "~/Library/LaunchAgents"
}
dirAbs, err := s.fs.ExpandPath(dir)
if err != nil {
return "", "", errors.Wrap(err, "expanding path")
}
logDir := opts.LogDir
if logDir == "" {
logDir = "~/Library/Logs"
}
logDir, err = s.fs.ExpandPath(logDir)
if err != nil {
return "", "", errors.Wrap(err, "expanding log directory")
}
name := opts.Name
if name == "" {
name = s.runtime.GetEnvironmentName()
if s.name != "openvpn" {
name = fmt.Sprintf("%s.%s", s.name, name)
}
name = fmt.Sprintf("%s.openvpn.ssoca.dpb587.github.io", name)
}
err = s.fs.MkdirAll(dirAbs, 0700)
if err != nil {
return "", "", errors.Wrap(err, "creating target directory")
}
pathLaunchdService := path.Join(dirAbs, fmt.Sprintf("%s.plist", name))
var launchdServiceBuf bytes.Buffer
err = launchdService.Execute(
&launchdServiceBuf,
struct {
Name string
Exec string
Config string
Environment string
Service string
OpenvpnExec string
RunAtLoad string
LogDir string
}{
Name: name,
Exec: ssocaExec,
Config: configManager.GetSource(),
Environment: s.runtime.GetEnvironmentName(),
Service: s.name,
OpenvpnExec: openvpnExec,
RunAtLoad: strconv.FormatBool(opts.RunAtLoad),
LogDir: logDir,
},
)
if err != nil {
return "", "", errors.Wrap(err, "generating launchd service")
}
launchdService := launchdServiceBuf.String()
err = s.fs.WriteFileString(pathLaunchdService, launchdService)
if err != nil {
return "", "", errors.Wrap(err, "writing service plist")
}
err = s.fs.Chmod(pathLaunchdService, 0744)
if err != nil {
return "", "", errors.Wrap(err, "chmoding service plist")
}
return pathLaunchdService, name, nil
}
var launchdService = template.Must(template.New("script").Parse(`<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>Label</key>
<string>{{.Name}}</string>
<key>ProgramArguments</key>
<array>
<string>{{.Exec}}</string>
<string>--config={{.Config}}</string>
<string>--environment={{.Environment}}</string>
<string>openvpn</string>
<string>exec</string>
<string>--service={{.Service}}</string>
<string>--exec={{.OpenvpnExec}}</string>
</array>
<key>StandardErrorPath</key>
<string>{{.LogDir}}/{{.Name}}.stderr.log</string>
<key>StandardOutPath</key>
<string>{{.LogDir}}/{{.Name}}.stdout.log</string>
<key>RunAtLoad</key>
<{{.RunAtLoad}}/>
<key>OnDemand</key>
<false/>
<key>KeepAlive</key>
<true/>
</dict>
</plist>
`))