no submod

work/notea/server/auth.go

@@ -0,0 +1,61 @@
+package main
+
+import (
+	"errors"
+	"io/ioutil"
+
+	yaml "gopkg.in/yaml.v2"
+)
+
+type auth interface {
+	Login(string, string) (bool, error)
+	Groups(string) ([]string, error)
+}
+
+type FileAuth struct {
+	path string
+}
+
+type fileAuthContent struct {
+	Users map[string]struct {
+		Password string
+		Groups   []string
+	}
+}
+
+func NewFileAuth(path string) FileAuth {
+	return FileAuth{path: path}
+}
+
+func (fileAuth FileAuth) Login(u, p string) (bool, error) {
+	content, err := fileAuth.load()
+	if err != nil {
+		return false, err
+	}
+	entry, ok := content.Users[u]
+	return ok && entry.Password == p, nil
+}
+
+func (fileAuth FileAuth) Groups(u string) ([]string, error) {
+	content, err := fileAuth.load()
+	if err != nil {
+		return nil, err
+	}
+	entry, ok := content.Users[u]
+	if !ok {
+		return nil, errors.New("invalid user")
+	}
+	return entry.Groups, nil
+}
+
+func (fileAuth FileAuth) load() (fileAuthContent, error) {
+	var fileAuthContent fileAuthContent
+	b, err := ioutil.ReadFile(fileAuth.path)
+	if err != nil {
+		return fileAuthContent, err
+	}
+	if err := yaml.Unmarshal(b, &fileAuthContent); err != nil {
+		return fileAuthContent, err
+	}
+	return fileAuthContent, nil
+}