Doing organization improvements

internal/internal.go

@@ -0,0 +1,79 @@
+package internal
+
+import (
+	"errors"
+	"io"
+	"log"
+	"net/http"
+	"os"
+)
+
+// const
+
+const DefaultLinux_d = "/etc/packets"
+const DefaultCache_d = "/var/cache/packets"
+const DefaultHttpPort = 9123
+const DefaultData_d = "/opt/packets"
+
+// errors
+var ErrResponseNot200OK = errors.New("the request is not 200, download failed")
+
+type ConfigTOML struct {
+	Config struct {
+		HttpPort int    `toml:"httpPort"`
+		Cache_d  string `toml:"cache_d"`
+		Data_d   string `toml:"data_d"`
+		Bin_d    string `toml:"bin_d"`
+	} `toml:"Config"`
+}
+
+func DownloadPackageHTTP(url string) (*[]byte, error) {
+
+	resp, err := http.Get(url)
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	if resp.StatusCode != http.StatusOK {
+		return nil, ErrResponseNot200OK
+	}
+
+	fileBytes, err := io.ReadAll(resp.Body)
+	if err != nil {
+		return nil, err
+	}
+
+	return &fileBytes, nil
+}
+
+// DefaultConfigTOML generate a default toml and create the directorys
+func DefaultConfigTOML() (*ConfigTOML, error) {
+
+	var config ConfigTOML
+
+	_, err := os.Stat(DefaultCache_d)
+	if err != nil {
+		if os.IsNotExist(err) {
+			err := os.MkdirAll(DefaultCache_d, 0666)
+			if err != nil {
+				return nil, err
+			}
+		}
+	}
+
+	_, err = os.Stat(DefaultCache_d)
+	if err != nil {
+		if os.IsNotExist(err) {
+			err := os.MkdirAll(DefaultData_d, 0644)
+			if err != nil {
+				return nil, err
+			}
+		}
+	}
+
+	config.Config.Cache_d = DefaultCache_d
+	config.Config.Data_d = DefaultData_d
+	config.Config.HttpPort = DefaultHttpPort
+
+	return &config, nil
+}