Added header interpolation

internal/executors/action/action.go

@@ -102,6 +102,14 @@ func (executor *Executor) ExecuteActionStep(metadata execution.Metadata,
 		command.Content = variables.Interpolate(command.Content)
 		command.ContentB64 = variables.Interpolate(command.ContentB64)
 
+		for key, headers := range command.Headers {
+			var slice []string
+			for _, header := range headers {
+				slice = append(slice, variables.Interpolate(header))
+			}
+			command.Headers[key] = slice
+		}
+
 		for key, addresses := range target.Address {
 			var slice []string
 			for _, address := range addresses {

test/unittest/executor/action/action_executor_test.go

@@ -315,6 +315,26 @@ func TestVariableInterpolation(t *testing.T) {
 		},
 	}
 
+	varheader1 := cacao.Variable{
+		Type:  "string",
+		Name:  "__header_var1__",
+		Value: "headerinfo one",
+	}
+
+	varheader2 := cacao.Variable{
+		Type:  "string",
+		Name:  "__header_var2__",
+		Value: "headerinfo two",
+	}
+
+	inputHeaders := cacao.Headers{
+		"header1": []string{"__header_var1__:value", "__header_var2__:value"},
+	}
+
+	expectedHeaders := cacao.Headers{
+		"header1": []string{"headerinfo one", "headerinfo two"},
+	}
+
 	agent := cacao.AgentTarget{
 		Type: "ssh",
 		Name: "cap1",
@@ -325,15 +345,15 @@ func TestVariableInterpolation(t *testing.T) {
 		expectedCommand,
 		expectedAuth,
 		expectedTarget,
-		cacao.NewVariables(var1, var2, var3, varUser, varPassword, varOauth, varPrivateKey, varToken, varUserId)).
+		cacao.NewVariables(var1, var2, var3, varUser, varPassword, varOauth, varPrivateKey, varToken, varUserId, varheader1, varheader2)).
 		Return(cacao.NewVariables(var1),
 			nil)
 
 	_, err := executerObject.ExecuteActionStep(metadata,
 		inputCommand,
 		inputAuth,
 		inputTarget,
-		cacao.NewVariables(var1, var2, var3, varUser, varPassword, varOauth, varPrivateKey, varToken, varUserId),
+		cacao.NewVariables(var1, var2, var3, varUser, varPassword, varOauth, varPrivateKey, varToken, varUserId, varheader1, varheader2),
 		agent)
 
 	assert.Equal(t, err, nil)
@@ -345,13 +365,15 @@ func TestVariableInterpolation(t *testing.T) {
 		Command:    "GET / HTTP1.1",
 		Content:    "__http-api-content__:value",
 		ContentB64: "__http-api-content__:value",
+		Headers:    inputHeaders,
 	}
 
 	expectedHttpCommand := cacao.Command{
 		Type:       "http-api",
 		Command:    "GET / HTTP1.1",
 		Content:    "some content of the body",
 		ContentB64: "some content of the body",
+		Headers:    expectedHeaders,
 	}
 
 	metadataHttp := execution.Metadata{ExecutionId: executionId, PlaybookId: playbookId, StepId: stepId}
@@ -361,15 +383,15 @@ func TestVariableInterpolation(t *testing.T) {
 		expectedHttpCommand,
 		expectedAuth,
 		expectedTarget,
-		cacao.NewVariables(varHttpContent)).
+		cacao.NewVariables(varHttpContent, varheader1, varheader2)).
 		Return(cacao.NewVariables(var1),
 			nil)
 
 	_, err = executerObject.ExecuteActionStep(metadata,
 		httpCommand,
 		expectedAuth,
 		expectedTarget,
-		cacao.NewVariables(varHttpContent),
+		cacao.NewVariables(varHttpContent, varheader1, varheader2),
 		agent)
 
 	assert.Equal(t, err, nil)