add SetMeta and SetParsed helpers (#2845)

* add SetMeta and SetParsed helpers

pkg/types/event.go

@@ -46,6 +46,22 @@ type Event struct {
 	Meta map[string]string `yaml:"Meta,omitempty" json:"Meta,omitempty"`
 }
 
+func (e *Event) SetMeta(key string, value string) bool {
+	if e.Meta == nil {
+		e.Meta = make(map[string]string)
+	}
+	e.Meta[key] = value
+	return true
+}
+
+func (e *Event) SetParsed(key string, value string) bool {
+	if e.Parsed == nil {
+		e.Parsed = make(map[string]string)
+	}
+	e.Parsed[key] = value
+	return true
+}
+
 func (e *Event) GetType() string {
 	if e.Type == OVFLW {
 		return "overflow"

pkg/types/event_test.go

@@ -9,6 +9,88 @@ import (
 	"github.com/crowdsecurity/crowdsec/pkg/models"
 )
 
+func TestSetParsed(t *testing.T) {
+	tests := []struct {
+		name     string
+		evt      *Event
+		key      string
+		value    string
+		expected bool
+	}{
+		{
+			name:     "SetParsed: Valid",
+			evt:      &Event{},
+			key:      "test",
+			value:    "test",
+			expected: true,
+		},
+		{
+			name:     "SetParsed: Existing map",
+			evt:      &Event{Parsed: map[string]string{}},
+			key:      "test",
+			value:    "test",
+			expected: true,
+		},
+		{
+			name:     "SetParsed: Existing map+key",
+			evt:      &Event{Parsed: map[string]string{"test": "foobar"}},
+			key:      "test",
+			value:    "test",
+			expected: true,
+		},
+	}
+
+	for _, tt := range tests {
+		tt := tt
+		t.Run(tt.name, func(t *testing.T) {
+			tt.evt.SetParsed(tt.key, tt.value)
+			assert.Equal(t, tt.value, tt.evt.Parsed[tt.key])
+		})
+	}
+
+}
+
+func TestSetMeta(t *testing.T) {
+	tests := []struct {
+		name     string
+		evt      *Event
+		key      string
+		value    string
+		expected bool
+	}{
+		{
+			name:     "SetMeta: Valid",
+			evt:      &Event{},
+			key:      "test",
+			value:    "test",
+			expected: true,
+		},
+		{
+			name:     "SetMeta: Existing map",
+			evt:      &Event{Meta: map[string]string{}},
+			key:      "test",
+			value:    "test",
+			expected: true,
+		},
+		{
+			name:     "SetMeta: Existing map+key",
+			evt:      &Event{Meta: map[string]string{"test": "foobar"}},
+			key:      "test",
+			value:    "test",
+			expected: true,
+		},
+	}
+
+	for _, tt := range tests {
+		tt := tt
+		t.Run(tt.name, func(t *testing.T) {
+			tt.evt.SetMeta(tt.key, tt.value)
+			assert.Equal(t, tt.value, tt.evt.GetMeta(tt.key))
+		})
+	}
+
+}
+
 func TestParseIPSources(t *testing.T) {
 	tests := []struct {
 		name     string