Convert the global settings to correct type when reading them from file (#399)

Signed-off-by: Cosmin Cojocar <cosmin.cojocar@gmx.ch>

config.go

@@ -38,6 +38,22 @@ func NewConfig() Config {
 	return cfg
 }
 
+func (c Config) keyToGlobalOptions(key string) GlobalOption {
+	return GlobalOption(key)
+}
+
+func (c Config) convertGlobals() {
+	if globals, ok := c[Globals]; ok {
+		if settings, ok := globals.(map[string]interface{}); ok {
+			validGlobals := map[GlobalOption]string{}
+			for k, v := range settings {
+				validGlobals[c.keyToGlobalOptions(k)] = fmt.Sprintf("%v", v)
+			}
+			c[Globals] = validGlobals
+		}
+	}
+}
+
 // ReadFrom implements the io.ReaderFrom interface. This
 // should be used with io.Reader to load configuration from
 //file or from string etc.
@@ -49,6 +65,7 @@ func (c Config) ReadFrom(r io.Reader) (int64, error) {
 	if err = json.Unmarshal(data, &c); err != nil {
 		return int64(len(data)), err
 	}
+	c.convertGlobals()
 	return int64(len(data)), nil
 }
 
@@ -87,7 +104,6 @@ func (c Config) GetGlobal(option GlobalOption) (string, error) {
 		}
 	}
 	return "", fmt.Errorf("no global config options found")
-
 }
 
 // SetGlobal associates a value with a global configuration option

config_test.go

@@ -2,6 +2,7 @@ package gosec_test
 
 import (
 	"bytes"
+	"strings"
 
 	. "github.com/onsi/ginkgo"
 	. "github.com/onsi/gomega"
@@ -106,6 +107,36 @@ var _ = Describe("Configuration", func() {
 			Expect(err).Should(BeNil())
 			Expect(enabled).Should(BeTrue())
 		})
-	})
 
+		It("should parse the global settings of type string from file", func() {
+			config := `
+			{
+				"global": {
+					"nosec": "enabled"
+				}
+			}`
+			cfg := gosec.NewConfig()
+			_, err := cfg.ReadFrom(strings.NewReader(config))
+			Expect(err).Should(BeNil())
+
+			value, err := cfg.GetGlobal(gosec.Nosec)
+			Expect(err).Should(BeNil())
+			Expect(value).Should(Equal("enabled"))
+		})
+		It("should parse the global settings of other types from file", func() {
+			config := `
+			{
+				"global": {
+					"nosec": true
+				}
+			}`
+			cfg := gosec.NewConfig()
+			_, err := cfg.ReadFrom(strings.NewReader(config))
+			Expect(err).Should(BeNil())
+
+			value, err := cfg.GetGlobal(gosec.Nosec)
+			Expect(err).Should(BeNil())
+			Expect(value).Should(Equal("true"))
+		})
+	})
 })