fix: Do not escape < > in jsonify

Closes #38

api/v1alpha1/json.go

@@ -0,0 +1,31 @@
+package v1alpha1
+
+import (
+	"bytes"
+	"encoding/json"
+)
+
+func unescapedMarshalIndent(in interface{}, prefix, indent string) ([]byte, error) {
+	var b bytes.Buffer
+	enc := json.NewEncoder(&b)
+	enc.SetEscapeHTML(false)
+	enc.SetIndent(prefix, indent)
+	if err := enc.Encode(in); err != nil {
+		return nil, err
+	}
+
+	result := b.Bytes()
+	return result[:len(result)-1], nil
+}
+
+func unescapedMarshal(in interface{}) ([]byte, error) {
+	var b bytes.Buffer
+	enc := json.NewEncoder(&b)
+	enc.SetEscapeHTML(false)
+	if err := enc.Encode(in); err != nil {
+		return nil, err
+	}
+
+	result := b.Bytes()
+	return result[:len(result)-1], nil
+}

api/v1alpha1/rule_json.go

@@ -1,7 +1,5 @@
 package v1alpha1
 
-import "encoding/json"
-
 // RuleJson is a representation of an Oathkeeper rule.
 type RuleJSON struct {
 	ID       string `json:"id"`
@@ -13,7 +11,7 @@ func (rj RuleJSON) MarshalJSON() ([]byte, error) {
 
 	type Alias RuleJSON
 
-	return json.Marshal(&struct {
+	return unescapedMarshal(&struct {
 		Upstream *UpstreamJSON `json:"upstream"`
 		Alias
 	}{

api/v1alpha1/rule_types.go

@@ -16,11 +16,12 @@ limitations under the License.
 package v1alpha1
 
 import (
-	"encoding/json"
 	"fmt"
-	"github.com/ory/oathkeeper-maester/internal/validation"
+
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/apimachinery/pkg/runtime"
+
+	"github.com/ory/oathkeeper-maester/internal/validation"
 )
 
 const (
@@ -139,7 +140,7 @@ func (rl RuleList) ToOathkeeperRules() ([]byte, error) {
 		rules[i] = rl.Items[i].ToRuleJSON()
 	}
 
-	return json.MarshalIndent(rules, "", "  ")
+	return unescapedMarshalIndent(rules, "", "  ")
 }
 
 // FilterNotValid filters out Rules which doesn't pass validation due to being not processed yet or due to negative result of validation. It returns a list of Rules which passed validation successfully.

api/v1alpha1/rule_types_test.go

@@ -191,7 +191,7 @@ func TestToOathkeeperRules(t *testing.T) {
 				newStringPtr("/api/v1"),
 				nil,
 				newBoolPtr(true),
-				[]*Authenticator{&Authenticator{h1}},
+				[]*Authenticator{{h1}},
 				nil,
 				[]*Mutator{{h1}, {h2}})
 
@@ -203,7 +203,7 @@ func TestToOathkeeperRules(t *testing.T) {
 				nil,
 				nil,
 				newBoolPtr(false),
-				[]*Authenticator{&Authenticator{h1}, {h2}},
+				[]*Authenticator{{h1}, {h2}},
 				nil,
 				nil)