automatically generate a service user at startup closes #83

config.toml

@@ -6,6 +6,9 @@ NUMBER_OF_WORKERS=20
 
 SUPRESS_CUDA=1
 
+[ServiceUser]
+USER="service"
+
 [Worker]
 PULLING_TIME="500ms"
 NUMBER_OF_WORKERS=1

logic/utils/config.go

@@ -1,7 +1,11 @@
 package utils
 
 import (
+	"database/sql"
 	"os"
+	"strings"
+
+	. "git.andr3h3nriqu3s.com/andr3/fyp/logic/db_types"
 
 	toml "github.com/BurntSushi/toml"
 	"github.com/charmbracelet/log"
@@ -12,6 +16,11 @@ type WorkerConfig struct {
 	Pulling         string `toml:"pulling_time"`
 }
 
+type ServiceUser struct {
+	User   string `toml:"user"`
+	UserId string `toml:"__user__id__"`
+}
+
 type Config struct {
 	Hostname        string
 	Port            int
@@ -19,6 +28,8 @@ type Config struct {
 	SupressCuda     int `toml:"supress_cuda"`
 
 	GpuWorker WorkerConfig `toml:"Worker"`
+
+	ServiceUser ServiceUser `toml:"ServiceUser"`
 }
 
 func LoadConfig() Config {
@@ -37,6 +48,10 @@ func LoadConfig() Config {
 				NumberOfWorkers: 1,
 				Pulling:         "500ms",
 			},
+			ServiceUser: ServiceUser{
+				User:   "Service",
+				UserId: "",
+			},
 		}
 	}
 
@@ -51,3 +66,44 @@ func LoadConfig() Config {
 
 	return conf
 }
+
+func (c *Config) GenerateToken(db *sql.DB) {
+	if c.ServiceUser.User == "" {
+		log.Fatal("A user needs to be set in a configuration file")
+	}
+
+	var user struct {
+		Password string `db:"password"`
+		UserId   string `db:"id"`
+	}
+
+	err := GetDBOnce(db, &user, "users where username=$1;", c.ServiceUser.User)
+	if err == NotFoundError {
+		var newUser = struct {
+			Username string
+			Email    string
+			Salt     string
+			Password string
+            UserType UserType `db:"user_type"`
+		}{
+			c.ServiceUser.User,
+			c.ServiceUser.User,
+			"",
+			"",
+            User_Admin,
+		}
+		id, err := InsertReturnId(db, &newUser, "users", "id")
+		if err != nil {
+			log.Fatal("Failed to create user", "err", err)
+		}
+		c.ServiceUser.UserId = id
+	} else if err != nil {
+		log.Fatal("To get user name", "err", err)
+		return
+	} else {
+		if len(strings.ReplaceAll(user.Password, " ", "")) != 0 {
+			log.Fatal("User already exists and is not the service user", "user", user)
+		}
+		c.ServiceUser.UserId = user.UserId
+	}
+}

main.go

@@ -37,6 +37,7 @@ func main() {
 
 	config := LoadConfig()
 	log.Info("Config loaded!", "config", config)
+    config.GenerateToken(db)
 
 	StartRunners(db, config)