Server: Implement function for checking renewal button visibility

1 files changed, 78 insertions, 0 deletions

diff --git a/internal/log/log.go b/internal/log/log.go
new file mode 100644
index 0000000..cba3364
--- /dev/null
+++ b/internal/log/log.go
@@ -0,0 +1,78 @@
+package log
+
+import (
+	"fmt"
+	"log"
+	"os"
+	"path"
+	"github.com/jwijenbergh/eduvpn-common/internal/util"
+)
+
+type FileLogger struct {
+	Level LogLevel
+	File  *os.File
+}
+
+type LogLevel int8
+
+const (
+	LOG_NOTSET LogLevel = iota
+	LOG_INFO
+	LOG_WARNING
+	LOG_ERROR
+)
+
+func (e LogLevel) String() string {
+	switch e {
+	case LOG_NOTSET:
+		return "NOTSET"
+	case LOG_INFO:
+		return "INFO"
+	case LOG_WARNING:
+		return "WARNING"
+	case LOG_ERROR:
+		return "ERROR"
+	default:
+		return "UNKNOWN"
+	}
+}
+
+func (logger *FileLogger) Init(level LogLevel, name string, directory string) error {
+	configDirErr := util.EnsureDirectory(directory)
+	if configDirErr != nil {
+		return &LogInitializeError{Name: name, Directory: directory, Err: configDirErr}
+	}
+	logFile, logOpenErr := os.OpenFile(logger.getFilename(directory, name), os.O_RDWR|os.O_CREATE|os.O_APPEND, 0o666)
+	if logOpenErr != nil {
+		return &LogInitializeError{Name: name, Directory: directory, Err: logOpenErr}
+	}
+	log.SetOutput(logFile)
+	logger.File = logFile
+	logger.Level = level
+	return nil
+}
+
+func (logger *FileLogger) getFilename(directory string, name string) string {
+	pathString := path.Join(directory, name)
+	return fmt.Sprintf("%s.log", pathString)
+}
+
+func (logger *FileLogger) Log(level LogLevel, str string) {
+	if level >= logger.Level && logger.Level != LOG_NOTSET {
+		log.Printf("[%s]: %s", level.String(), str)
+	}
+}
+
+func (logger *FileLogger) Close() {
+	logger.File.Close()
+}
+
+type LogInitializeError struct {
+	Name      string
+	Directory string
+	Err       error
+}
+
+func (e *LogInitializeError) Error() string {
+	return fmt.Sprintf("failed initializing logging with name: %s and directory: %s with error: %v", e.Name, e.Directory, e.Err)
+}