Merge pull request 'Make ESVM socket accept json data instead of raw text commands' (#1) from json_switch into master

Reviewed-on: #1
This commit is contained in:
2025-08-30 10:54:57 +00:00
6 changed files with 496 additions and 310 deletions
-2
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@@ -1,5 +1,3 @@
module ectl
go 1.23.4
require gopkg.in/yaml.v3 v3.0.1
-4
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@@ -1,4 +0,0 @@
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+168 -227
View File
@@ -1,15 +1,14 @@
package main
import (
"encoding/json"
"flag"
"fmt"
"gopkg.in/yaml.v3"
"io"
"log"
"net"
"os"
"path"
"strconv"
"strings"
"syscall"
"time"
)
@@ -19,17 +18,18 @@ var version = "dev"
var sysconfdir = "/etc/"
var runstatedir = "/var/run/"
var socket net.Conn
var conn net.Conn
func main() {
// Set and parse flags
printVersion := flag.Bool("version", false, "print version and exit")
printJson := flag.Bool("json", false, "print output in json format")
flag.Parse()
// Dial esvm socket
dialSocket()
defer socket.Close()
defer conn.Close()
if flag.NArg() < 1 {
printUsage()
@@ -58,202 +58,190 @@ func main() {
if len(flag.Args()) <= 1 {
fmt.Println("Usage: ectl service <start/stop/enable/disable/status/list> [service]")
return
} else if flag.Args()[1] == "list" {
if _, err := os.Stat(path.Join(runstatedir, "esvm")); err != nil {
log.Fatalf("Could not list services! Error: %s\n", err)
}
entries, err := os.ReadDir(path.Join(runstatedir, "esvm"))
if err != nil {
log.Fatalf("Could not list services! Error: %s\n", err)
}
for _, entry := range entries {
if !entry.IsDir() {
continue
}
state := getServiceState(entry.Name())
enabled := strconv.FormatBool(isServiceEnabled(entry.Name()))
enabled = strings.ToUpper(enabled[:1]) + strings.ToLower(enabled[1:])
fmt.Println("Service name: " + entry.Name())
fmt.Printf(" State: %s\n", state)
fmt.Printf(" Enabled: %s\n", enabled)
}
return
} else if len(flag.Args()) <= 2 {
fmt.Printf("Usage: ectl service %s <service>\n", flag.Args()[1])
return
} else if flag.Args()[1] == "start" {
if _, err := os.Stat(path.Join(runstatedir, "esvm", flag.Args()[2])); err != nil {
log.Fatalf("Could not start service! Error: %s\n", err)
}
_, err := socket.Write([]byte("start " + flag.Args()[2]))
if err != nil {
log.Fatalf("Could not start service! Error: %s\n", err)
}
buf := make([]byte, 1024)
n, err := socket.Read(buf)
if err != nil {
log.Fatalf("Could not start service! Error: %s\n", err)
}
if string(buf[:n]) != "ok" {
log.Fatalf("Could not start service! Error: expcted 'ok' got '%s'\n", string(buf))
}
fmt.Println("Service started successfully!")
return
} else if flag.Args()[1] == "stop" {
if _, err := os.Stat(path.Join(runstatedir, "esvm", flag.Args()[2])); err != nil {
log.Fatalf("Could not stop service! Error: %s\n", err)
}
_, err := socket.Write([]byte("stop " + flag.Args()[2]))
if err != nil {
log.Fatalf("Could not stop service! Error: %s\n", err)
}
buf := make([]byte, 1024)
n, err := socket.Read(buf)
if err != nil {
log.Fatalf("Could not stop service! Error: %s\n", err)
}
if string(buf[:n]) != "ok" {
log.Fatalf("Could not stop service! Error: expcted 'ok' got '%s'\n", string(buf))
}
fmt.Println("Service stopped successfully!")
return
} else if flag.Args()[1] == "restart" || flag.Args()[1] == "reload" {
if _, err := os.Stat(path.Join(runstatedir, "esvm", flag.Args()[2])); err != nil {
log.Fatalf("Could not restart service! Error: %s\n", err)
}
_, err := socket.Write([]byte("restart " + flag.Args()[2]))
if err != nil {
log.Fatalf("Could not restart service! Error: %s\n", err)
}
buf := make([]byte, 1024)
n, err := socket.Read(buf)
if err != nil {
log.Fatalf("Could not restart service! Error: %s\n", err)
}
if string(buf[:n]) != "ok" {
log.Fatalf("Could not restart service! Error: expcted 'ok' got '%s'\n", string(buf))
}
fmt.Println("Service restarted successfully!")
return
} else if flag.Args()[1] == "enable" {
// Check if service exists
found := false
entries, err := os.ReadDir(path.Join(sysconfdir, "esvm/services/"))
if err != nil {
log.Fatalf("Could not enable service! Error: %s\n", err)
}
type minimalServiceStruct struct {
Name string `yaml:"name"`
}
for _, entry := range entries {
if entry.IsDir() || !strings.HasSuffix(entry.Name(), ".esv") {
continue
}
bytes, err := os.ReadFile(path.Join(sysconfdir, "esvm/services", entry.Name()))
if err != nil {
log.Fatalf("Could not enable service! Error: %s\n", err)
}
sv := minimalServiceStruct{Name: ""}
err = yaml.Unmarshal(bytes, &sv)
if err != nil {
log.Fatalf("Could not enable service! Error: %s\n", err)
}
if sv.Name == flag.Args()[2] {
found = true
break
}
}
if !found {
log.Fatalf("Service does not exist!")
}
if _, err := os.Stat(path.Join(sysconfdir, "esvm/enabled_services")); err != nil {
err := os.WriteFile(path.Join(sysconfdir, "esvm/enabled_services"), []byte(flag.Args()[2]+"\n"), 0644)
if err != nil {
log.Fatalf("Could not enable service! Error: %s\n", err)
}
} else if flag.Arg(1) == "start" || flag.Arg(1) == "stop" || flag.Arg(1) == "restart" || flag.Arg(1) == "enable" || flag.Arg(1) == "disable" {
// Ensure service name argument has been set
if len(flag.Args()) <= 2 {
fmt.Printf("Usage: ectl service %s <service>\n", flag.Args()[1])
return
}
file, err := os.ReadFile(path.Join(sysconfdir, "esvm/enabled_services"))
if err != nil {
log.Fatalf("Could not enable service! Error: %s\n", err)
type ServiceCommandJsonStruct struct {
Command string `json:"command"`
Service string `json:"service"`
}
for _, line := range strings.Split(string(file), "\n") {
if strings.TrimSpace(line) == flag.Args()[2] {
fmt.Println("Service is already enabled!")
return
}
serviceCommandJson := ServiceCommandJsonStruct{
Command: flag.Arg(1),
Service: flag.Arg(2),
}
err = os.WriteFile(path.Join(sysconfdir, "esvm/enabled_services"), []byte(string(file)+flag.Args()[2]+"\n"), 0644)
// Encode struct to json string
jsonData, err := json.Marshal(serviceCommandJson)
if err != nil {
log.Fatalf("Could not enable service! Error: %s\n", err)
log.Fatalf("Could not encode JSON data! Error: %s\n", err)
}
fmt.Printf("Service (%s) has been enabled!\n", flag.Args()[2])
return
} else if flag.Args()[1] == "disable" {
if _, err := os.Stat(path.Join(sysconfdir, "esvm/enabled_services")); err != nil {
fmt.Println("Service is already disabled!")
_, err = conn.Write(jsonData)
if err != nil {
log.Fatalf("Could not write JSON data to socket! Error: %s\n", err)
}
// Create a buffer for incoming data.
buf := make([]byte, 4096)
// Read data from the connection.
n, err := conn.Read(buf)
if err == io.EOF {
return
}
if err != nil {
return
}
file, err := os.ReadFile(path.Join(sysconfdir, "esvm/enabled_services"))
if err != nil {
log.Fatalf("Could not disable service! Error: %s\n", err)
}
lines := strings.Split(string(file), "\n")
found := false
for i := len(lines) - 1; i >= 0; i-- {
line := strings.TrimSpace(lines[i])
if strings.TrimSpace(line) == flag.Args()[2] {
lines = append(lines[:i], lines[i+1:]...)
found = true
} else if strings.TrimSpace(line) == "" {
lines = append(lines[:i], lines[i+1:]...)
}
}
if !found {
fmt.Println("Service is already disabled!")
// Print json data if flag is set
if *printJson {
fmt.Println(string(buf[:n]))
return
}
err = os.WriteFile(path.Join(sysconfdir, "esvm/enabled_services"), []byte(strings.Join(lines, "\n")+"\n"), 0644)
// Decoode JSON data
var returnedJsonData map[string]any
err = json.Unmarshal(buf[:n], &returnedJsonData)
if err != nil {
log.Fatalf("Could not disable service! Error: %s\n", err)
log.Fatalf("Could not decode JSON data from connection!")
}
if err, ok := returnedJsonData["error"]; ok {
log.Fatal(err)
} else if msg, ok := returnedJsonData["success"]; ok {
fmt.Println(msg)
} else {
log.Fatal("Connection returned empty string!")
}
fmt.Printf("Service (%s) has been disabled!\n", flag.Args()[2])
return
} else if flag.Args()[1] == "status" {
if _, err := os.Stat(path.Join(runstatedir, "esvm", flag.Args()[2])); err != nil {
log.Fatalf("Could not get service status! Error: %s\n", err)
// Ensure service name argument has been set
if len(flag.Args()) <= 2 {
fmt.Printf("Usage: ectl service %s <service>\n", flag.Args()[1])
return
}
state := getServiceState(flag.Args()[2])
enabled := strconv.FormatBool(isServiceEnabled(flag.Args()[2]))
enabled = strings.ToUpper(enabled[:1]) + strings.ToLower(enabled[1:])
type ServiceCommandJsonStruct struct {
Command string `json:"command"`
Service string `json:"service"`
}
serviceCommandJson := ServiceCommandJsonStruct{
Command: flag.Arg(1),
Service: flag.Arg(2),
}
// Encode struct to json string
jsonData, err := json.Marshal(serviceCommandJson)
if err != nil {
log.Fatalf("Could not encode JSON data! Error: %s\n", err)
}
_, err = conn.Write(jsonData)
if err != nil {
log.Fatalf("Could not write JSON data to socket! Error: %s\n", err)
}
// Create a buffer for incoming data.
buf := make([]byte, 4096)
// Read data from the connection.
n, err := conn.Read(buf)
if err == io.EOF {
return
}
if err != nil {
return
}
// Print json data if flag is set
if *printJson {
fmt.Println(string(buf[:n]))
return
}
// Decoode JSON data
var returnedJsonData map[string]any
err = json.Unmarshal(buf[:n], &returnedJsonData)
if err != nil {
log.Fatalf("Could not decode JSON data from connection!")
}
if err, ok := returnedJsonData["error"]; ok {
log.Fatal(err)
}
serviceState := returnedJsonData["state"].(string)
serviceEnabled := returnedJsonData["is_enabled"].(bool)
fmt.Printf("Name: %s\n", flag.Arg(2))
fmt.Printf("State: %s\n", serviceState)
fmt.Printf("Enabled: %t\n", serviceEnabled)
return
} else if flag.Arg(1) == "list" {
type ServiceCommandJsonStruct struct {
Command string `json:"command"`
}
serviceCommandJson := ServiceCommandJsonStruct{
Command: flag.Arg(1),
}
// Encode struct to json string
jsonData, err := json.Marshal(serviceCommandJson)
if err != nil {
log.Fatalf("Could not encode JSON data! Error: %s\n", err)
}
_, err = conn.Write(jsonData)
if err != nil {
log.Fatalf("Could not write JSON data to socket! Error: %s\n", err)
}
// Create a buffer for incoming data.
buf := make([]byte, 4096)
// Read data from the connection.
n, err := conn.Read(buf)
if err == io.EOF {
return
}
if err != nil {
return
}
// Print json data if flag is set
if *printJson {
fmt.Println(string(buf[:n]))
return
}
// Decoode JSON data
var returnedJsonData map[string]any
err = json.Unmarshal(buf[:n], &returnedJsonData)
if err != nil {
log.Fatalf("Could not decode JSON data from connection!")
}
if err, ok := returnedJsonData["error"]; ok {
log.Fatal(err)
}
for _, serviceMap := range returnedJsonData["services"].([]any) {
serviceName := serviceMap.(map[string]any)["name"].(string)
serviceState := serviceMap.(map[string]any)["state"].(string)
serviceEnabled := serviceMap.(map[string]any)["is_enabled"].(bool)
fmt.Printf("Name: %s\n", serviceName)
fmt.Printf("State: %s\n", serviceState)
fmt.Printf("Enabled: %t\n", serviceEnabled)
fmt.Println()
}
fmt.Println("Service name: " + flag.Args()[2])
fmt.Printf(" State: %s\n", state)
fmt.Printf(" Enabled: %s\n", enabled)
return
}
}
@@ -262,53 +250,6 @@ func main() {
os.Exit(1)
}
func getServiceState(serviceName string) string {
if _, err := os.Stat(path.Join(runstatedir, "esvm", serviceName)); err != nil {
return ""
}
var state uint64
bytes, err := os.ReadFile(path.Join(runstatedir, "esvm", serviceName, "state"))
if err != nil {
state = 0
}
state, err = strconv.ParseUint(string(bytes), 10, 8)
switch state {
case 1:
return "Unloaded"
case 2:
return "Running"
case 3:
return "Stopped"
case 4:
return "Crashed"
case 5:
return "Completed"
default:
return "Unknown"
}
}
func isServiceEnabled(serviceName string) bool {
if _, err := os.Stat(path.Join(sysconfdir, "esvm/enabled_services")); err != nil {
return false
}
file, err := os.ReadFile(path.Join(sysconfdir, "esvm/enabled_services"))
if err != nil {
return false
}
for _, line := range strings.Split(string(file), "\n") {
if strings.TrimSpace(line) == serviceName {
return true
}
}
return false
}
func printUsage() {
fmt.Println("Available sucommands:")
fmt.Println("ectl version | Show enit version")
@@ -329,12 +270,12 @@ func dialSocket() {
}
var err error
socket, err = net.Dial("unix", path.Join(runstatedir, "esvm/esvm.sock"))
conn, err = net.Dial("unix", path.Join(runstatedir, "esvm/esvm.sock"))
if err != nil {
log.Fatalf("Failed to connect to esvm.sock! Error: %s\n", err)
}
if err := socket.SetDeadline(time.Now().Add(5 * time.Second)); err != nil {
if err := conn.SetDeadline(time.Now().Add(5 * time.Second)); err != nil {
log.Fatalf("Failed to set write deadline! Error: %s\n", err)
}
}
+1 -16
View File
@@ -8,7 +8,6 @@ import (
"os"
"os/signal"
"path"
"slices"
"strings"
"syscall"
"time"
@@ -23,7 +22,6 @@ var runtimeServiceDir string
var serviceConfigDir string
var Services = make([]EnitService, 0)
var EnabledServices = make([]string, 0)
var logger *log.Logger
var socket net.Listener
@@ -203,23 +201,10 @@ func Init() {
}
}
// Get enabled services
if _, err := os.Stat(path.Join(serviceConfigDir, "enabled_services")); err == nil {
file, err := os.ReadFile(path.Join(serviceConfigDir, "enabled_services"))
if err != nil {
return
}
for _, line := range strings.Split(string(file), "\n") {
if line != "" {
EnabledServices = append(EnabledServices, line)
}
}
}
// Get enabled services that meet their dependencies
servicesWithMetDepends := make([]EnitService, 0)
for _, service := range Services {
if slices.Contains(EnabledServices, service.Name) && len(service.GetUnmetDependencies()) == 0 {
if service.isEnabled() && len(service.GetUnmetDependencies()) == 0 {
servicesWithMetDepends = append(servicesWithMetDepends, service)
}
}
+71
View File
@@ -1,6 +1,7 @@
package main
import (
"io"
"os"
"os/exec"
"path"
@@ -21,6 +22,15 @@ const (
EnitServiceCompleted
)
var EnitServiceStateNames map[EnitServiceState]string = map[EnitServiceState]string{
EnitServiceUnknown: "unknown",
EnitServiceUnloaded: "unloaded",
EnitServiceRunning: "running",
EnitServiceStopped: "stopped",
EnitServiceCrashed: "crashed",
EnitServiceCompleted: "completed",
}
type EnitService struct {
Name string `yaml:"name"`
Description string `yaml:"description,omitempty"`
@@ -308,3 +318,64 @@ func (service *EnitService) RestartService() error {
return nil
}
// Functions will be rewritten at some point to allow enabling unloaded services
func (service *EnitService) isEnabled() bool {
contents, err := os.ReadFile(path.Join(serviceConfigDir, "enabled_services"))
if err != nil {
return false
}
for _, line := range strings.Split(string(contents), "\n") {
line = strings.TrimSpace(line)
if line == "" {
continue
}
if line == service.Name {
return true
}
}
return false
}
func (service *EnitService) SetEnabled(isEnabled bool) error {
// Return if service is already in correct state
if service.isEnabled() == isEnabled {
return nil
}
// Create or open enabled_services file
file, err := os.OpenFile(path.Join(serviceConfigDir, "enabled_services"), os.O_CREATE|os.O_RDWR, 0644)
if err != nil {
return err
}
defer file.Close()
// Get enabled_services file contents
contents, err := io.ReadAll(file)
if err != nil {
return err
}
// Modify contents
strContents := string(contents)
if isEnabled {
strContents += service.Name + "\n"
} else {
strContents = strings.ReplaceAll(strContents, service.Name+"\n", "")
}
// Write new contents to file
file.Truncate(0)
file.Seek(0, 0)
_, err = file.WriteString(strContents)
if err != nil {
return err
}
file.Sync()
return nil
}
+256 -61
View File
@@ -1,18 +1,30 @@
package main
import (
"encoding/json"
"fmt"
"io"
"net"
"path"
"strings"
)
var commandHandlers = make(map[string]func(conn net.Conn, jsonData map[string]any))
func initSocket() (socket net.Listener, err error) {
socket, err = net.Listen("unix", path.Join(runtimeServiceDir, "esvm.sock"))
if err != nil {
return nil, err
}
// Register command handlers
commandHandlers["start"] = handleStartServiceCommand
commandHandlers["stop"] = handleStopServiceCommand
commandHandlers["restart"] = handleRestartServiceCommand
commandHandlers["enable"] = handleEnableServiceCommand
commandHandlers["disable"] = handleDisableServiceCommand
commandHandlers["status"] = handleStatusServiceCommand
commandHandlers["list"] = handleListServicesCommand
return socket, nil
}
@@ -35,68 +47,251 @@ func listenToSocket() {
return
}
if err != nil {
logger.Fatal(err)
return
}
command := string(buf[:n])
commandSplit := strings.Split(command, " ")
if len(commandSplit) >= 2 {
if commandSplit[0] == "start" {
service := GetServiceByName(commandSplit[1])
if service == nil {
_, err := conn.Write([]byte("service not found"))
if err != nil {
return
}
}
if err := service.StartService(); err != nil {
_, err := conn.Write([]byte("could not start service"))
if err != nil {
return
}
}
_, err := conn.Write([]byte("ok"))
if err != nil {
return
}
} else if commandSplit[0] == "stop" {
service := GetServiceByName(commandSplit[1])
if service == nil {
_, err := conn.Write([]byte("service not found"))
if err != nil {
return
}
}
if err := service.StopService(); err != nil {
_, err := conn.Write([]byte("could not stop service"))
if err != nil {
return
}
}
_, err := conn.Write([]byte("ok"))
if err != nil {
return
}
} else if commandSplit[0] == "restart" {
service := GetServiceByName(commandSplit[1])
if service == nil {
_, err := conn.Write([]byte("service not found"))
if err != nil {
return
}
}
if err := service.RestartService(); err != nil {
_, err := conn.Write([]byte("could not restart service"))
if err != nil {
return
}
}
_, err := conn.Write([]byte("ok"))
if err != nil {
return
}
}
// Decoode JSON data
var jsonData map[string]any
err = json.Unmarshal(buf[:n], &jsonData)
if err != nil {
conn.Write(wrapErrorInJson(fmt.Errorf("Invalid JSON")))
return
}
// Get command to execute
command, ok := jsonData["command"]
if !ok {
conn.Write(wrapErrorInJson(fmt.Errorf("'command' field missing")))
return
}
// Get command handler
commandHandler, ok := commandHandlers[command.(string)]
if !ok {
conn.Write(wrapErrorInJson(fmt.Errorf("command (%s) has not been implemented", command.(string))))
return
}
commandHandler(conn, jsonData)
}(conn)
}
func handleStartServiceCommand(conn net.Conn, jsonData map[string]any) {
// Get service name from json data
serviceName, ok := jsonData["service"]
if !ok {
conn.Write(wrapErrorInJson(fmt.Errorf("'service' field missing")))
return
}
// Ensure service exists
service := GetServiceByName(serviceName.(string))
if service == nil {
conn.Write(wrapErrorInJson(fmt.Errorf("Service (%s) not found", serviceName.(string))))
return
}
// Start the service
if err := service.StartService(); err != nil {
conn.Write(wrapErrorInJson(fmt.Errorf("Service (%s) could not be started", serviceName.(string))))
return
}
conn.Write(wrapSuccessMsgInJson(fmt.Sprintf("Service (%s) has started sucessfully", serviceName.(string))))
}
func handleStopServiceCommand(conn net.Conn, jsonData map[string]any) {
// Get service name from json data
serviceName, ok := jsonData["service"]
if !ok {
conn.Write(wrapErrorInJson(fmt.Errorf("'service' field missing")))
return
}
// Ensure service exists
service := GetServiceByName(serviceName.(string))
if service == nil {
conn.Write(wrapErrorInJson(fmt.Errorf("Service (%s) not found", serviceName.(string))))
return
}
// Stop the service
if err := service.StopService(); err != nil {
conn.Write(wrapErrorInJson(fmt.Errorf("Service (%s) could not be stopped", serviceName.(string))))
return
}
conn.Write(wrapSuccessMsgInJson(fmt.Sprintf("Service (%s) has stopped sucessfully", serviceName.(string))))
}
func handleRestartServiceCommand(conn net.Conn, jsonData map[string]any) {
// Get service name from json data
serviceName, ok := jsonData["service"]
if !ok {
conn.Write(wrapErrorInJson(fmt.Errorf("'service' field missing")))
return
}
// Ensure service exists
service := GetServiceByName(serviceName.(string))
if service == nil {
conn.Write(wrapErrorInJson(fmt.Errorf("Service (%s) not found", serviceName.(string))))
return
}
// Restart the service
if err := service.RestartService(); err != nil {
conn.Write(wrapErrorInJson(fmt.Errorf("Service (%s) could not be restarted", serviceName.(string))))
return
}
conn.Write(wrapSuccessMsgInJson(fmt.Sprintf("Service (%s) has restarted sucessfully", serviceName.(string))))
}
func handleEnableServiceCommand(conn net.Conn, jsonData map[string]any) {
// Get service name from json data
serviceName, ok := jsonData["service"]
if !ok {
conn.Write(wrapErrorInJson(fmt.Errorf("'service' field missing")))
return
}
// Ensure service exists
service := GetServiceByName(serviceName.(string))
if service == nil {
conn.Write(wrapErrorInJson(fmt.Errorf("Service (%s) not found", serviceName.(string))))
return
}
// Check if service is already enabled
if service.isEnabled() {
conn.Write(wrapSuccessMsgInJson(fmt.Sprintf("Service (%s) is already enabled", serviceName.(string))))
return
}
// Enable service
err := service.SetEnabled(true)
if err != nil {
conn.Write(wrapErrorInJson(fmt.Errorf("Could not enable service! Error: %s", err)))
return
}
conn.Write(wrapSuccessMsgInJson(fmt.Sprintf("Service (%s) was enabled sucessfully", serviceName.(string))))
}
func handleDisableServiceCommand(conn net.Conn, jsonData map[string]any) {
// Get service name from json data
serviceName, ok := jsonData["service"]
if !ok {
conn.Write(wrapErrorInJson(fmt.Errorf("'service' field missing")))
return
}
// Ensure service exists
service := GetServiceByName(serviceName.(string))
if service == nil {
conn.Write(wrapErrorInJson(fmt.Errorf("Service (%s) not found", serviceName.(string))))
return
}
// Check if service is already disabled
if !service.isEnabled() {
conn.Write(wrapSuccessMsgInJson(fmt.Sprintf("Service (%s) is already disabled", serviceName.(string))))
return
}
// Disable service
err := service.SetEnabled(false)
if err != nil {
conn.Write(wrapErrorInJson(fmt.Errorf("Could not disable service! Error: %s", err)))
return
}
conn.Write(wrapSuccessMsgInJson(fmt.Sprintf("Service (%s) was disabled sucessfully", serviceName.(string))))
}
func handleStatusServiceCommand(conn net.Conn, jsonData map[string]any) {
// Get service name from json data
serviceName, ok := jsonData["service"]
if !ok {
conn.Write(wrapErrorInJson(fmt.Errorf("'service' field missing")))
return
}
// Ensure service exists
service := GetServiceByName(serviceName.(string))
if service == nil {
conn.Write(wrapErrorInJson(fmt.Errorf("Service (%s) not found", serviceName.(string))))
return
}
statusMap := make(map[string]any)
statusMap["name"] = service.Name
statusMap["state"] = EnitServiceStateNames[service.GetCurrentState()]
statusMap["is_enabled"] = service.isEnabled()
// Encode map to json string
newJsonData, err := json.Marshal(statusMap)
if err != nil {
conn.Write(wrapErrorInJson(fmt.Errorf("Could not encode JSON data")))
return
}
conn.Write(newJsonData)
}
func handleListServicesCommand(conn net.Conn, _ map[string]any) {
servicesMap := make(map[string]any)
servicesMap["services"] = make([]map[string]any, 0)
// Loop through each service
for _, service := range Services {
statusMap := make(map[string]any)
statusMap["name"] = service.Name
statusMap["state"] = EnitServiceStateNames[service.GetCurrentState()]
statusMap["is_enabled"] = service.isEnabled()
servicesMap["services"] = append(servicesMap["services"].([]map[string]any), statusMap)
}
// Encode map to json string
newJsonData, err := json.Marshal(servicesMap)
if err != nil {
conn.Write(wrapErrorInJson(fmt.Errorf("Could not encode JSON data")))
return
}
conn.Write(newJsonData)
}
func wrapErrorInJson(err error) []byte {
// Wrap error in struct
type jsonErrorStruct struct {
Error string `json:"error"`
}
jsonError := jsonErrorStruct{
Error: err.Error(),
}
// Encode struct to json string
jsonData, _err := json.Marshal(jsonError)
if _err != nil {
return nil
}
return jsonData
}
func wrapSuccessMsgInJson(msg string) []byte {
// Wrap message in struct
type jsonSuccessStruct struct {
Success string `json:"success"`
}
jsonSuccess := jsonSuccessStruct{
Success: msg,
}
// Encode struct to json string
jsonData, _err := json.Marshal(jsonSuccess)
if _err != nil {
return nil
}
return jsonData
}