Added check to prevent duplicate experiments with same name

chaoscenter/graphql/server/pkg/chaos_experiment/handler/handler.go

@@ -105,6 +105,20 @@ func (c *ChaosExperimentHandler) SaveChaosExperiment(ctx context.Context, reques
 	// Updating the existing experiment
 	if wfDetails.ExperimentID == request.ID {
 		logrus.WithFields(logFields).Info("request received to update k8s chaos experiment")
+		if wfDetails.Name != request.Name {
+			filterQuery := bson.D{
+				{"project_id", request.ID},
+				{"name", request.Name},
+				{"is_removed", false},
+			}
+			experimentCount, err := c.chaosExperimentOperator.CountChaosExperiments(ctx, filterQuery)
+			if err != nil {
+				return "", err
+			}
+			if experimentCount > 0 {
+				return "", errors.New("experiment name should be unique, duplicate experiment found with name: " + request.Name)
+			}
+		}
 
 		err = c.chaosExperimentService.ProcessExperimentUpdate(newRequest, username, wfType, revID, false, projectID, nil)
 		if err != nil {
@@ -129,19 +143,18 @@ func (c *ChaosExperimentHandler) CreateChaosExperiment(ctx context.Context, requ
 
 	var revID = uuid.New().String()
 
-	// Check if the workflow_name exists under same project
-	wfDetails, err := c.chaosExperimentOperator.GetExperiments(bson.D{
-		{"name", request.ExperimentName},
+	// Check if the experiment_name exists under same project
+	filterQuery := bson.D{
 		{"project_id", projectID},
-		{"tags", request.Tags},
+		{"name", request.ExperimentName},
 		{"is_removed", false},
-	})
+	}
+	experimentCount, err := c.chaosExperimentOperator.CountChaosExperiments(ctx, filterQuery)
 	if err != nil {
 		return nil, err
 	}
-
-	if wfDetails != nil || len(wfDetails) > 0 {
-		return nil, errors.New("experiment name already exists in this project")
+	if experimentCount > 0 {
+		return nil, errors.New("experiment name should be unique, duplicate experiment found with name: " + request.ExperimentName)
 	}
 
 	newRequest, wfType, err := c.chaosExperimentService.ProcessExperiment(request, projectID, revID)
@@ -226,6 +239,20 @@ func (c *ChaosExperimentHandler) UpdateChaosExperiment(ctx context.Context, requ
 		revID = uuid.New().String()
 	)
 
+	// Check if the experiment_name exists under same project
+	filterQuery := bson.D{
+		{"project_id", projectID},
+		{"name", request.ExperimentName},
+		{"is_removed", false},
+	}
+	experimentCount, err := c.chaosExperimentOperator.CountChaosExperiments(ctx, filterQuery)
+	if err != nil {
+		return nil, err
+	}
+	if experimentCount > 0 {
+		return nil, errors.New("experiment name should be unique, duplicate experiment found with name: " + request.ExperimentName)
+	}
+
 	newRequest, wfType, err := c.chaosExperimentService.ProcessExperiment(request, projectID, revID)
 	if err != nil {
 		return nil, err

chaoscenter/graphql/server/pkg/database/mongodb/chaos_experiment/operations.go

@@ -124,3 +124,12 @@ func (c *Operator) UpdateChaosExperiments(ctx context.Context, query bson.D, upd
 
 	return nil
 }
+
+// CountChaosExperiments returns total number of matched documents
+func (c *Operator) CountChaosExperiments(ctx context.Context, query bson.D) (int64, error) {
+	res, err := mongodb.Operator.CountDocuments(ctx, mongodb.ChaosExperimentCollection, query)
+	if err != nil {
+		return 0, err
+	}
+	return res, nil
+}

litmus-portal/graphql-server/pkg/chaos-workflow/handler/handler.go

@@ -5,6 +5,7 @@ import (
 	"encoding/base64"
 	"encoding/json"
 	"errors"
+	"fmt"
 	"strconv"
 	"strings"
 	"time"
@@ -64,6 +65,21 @@ func NewChaosWorkflowHandler(
 
 // CreateChaosWorkflow creates a new chaos workflow
 func (c *ChaosWorkflowHandler) CreateChaosWorkflow(ctx context.Context, request *model.ChaosWorkFlowRequest, r *store.StateData) (*model.ChaosWorkFlowResponse, error) {
+
+	// Check if the experiment_name exists under same project
+	expDetails, err := c.chaosWorkflowOperator.GetWorkflow(bson.D{
+		{"name", request.WorkflowName},
+		{"project_id", request.ProjectID},
+		{"is_removed", false},
+	})
+	if err != nil && err != mongo.ErrNoDocuments {
+		return nil, err
+	}
+	if expDetails.WorkflowID == "" {
+		log.Errorf("experiment with name %s already exists", request.WorkflowName)
+		return nil, fmt.Errorf("experiment with name %s already exists", request.WorkflowName)
+	}
+
 	request, wfType, err := c.chaosWorkflowService.ProcessWorkflow(request)
 	if err != nil {
 		log.Error("error processing workflow: ", err)
@@ -198,6 +214,20 @@ func (c *ChaosWorkflowHandler) TerminateChaosWorkflow(ctx context.Context, proje
 }
 
 func (c *ChaosWorkflowHandler) UpdateChaosWorkflow(ctx context.Context, request *model.ChaosWorkFlowRequest, r *store.StateData) (*model.ChaosWorkFlowResponse, error) {
+	// Check if the experiment_name exists under same project
+	expDetails, err := c.chaosWorkflowOperator.GetWorkflow(bson.D{
+		{"name", request.WorkflowName},
+		{"project_id", request.ProjectID},
+		{"is_removed", false},
+	})
+	if err != nil && err != mongo.ErrNoDocuments {
+		return nil, err
+	}
+	if expDetails.WorkflowID == "" {
+		log.Errorf("experiment with name %s already exists", request.WorkflowName)
+		return nil, fmt.Errorf("experiment with name %s already exists", request.WorkflowName)
+	}
+
 	request, wfType, err := c.chaosWorkflowService.ProcessWorkflow(request)
 	if err != nil {
 		log.Error("error processing workflow update: ", err)