all: implement interface and API to cancel running attack

On the top of the page, it will display currently running attack with
target name and HTTP target name.  User can cancel the attack by
clicking "Cancel" button on the right.

1 files changed, 6 insertions, 5 deletions

diff --git a/errors.go b/errors.go
index 29dcfee..f5f04b4 100644
--- a/errors.go
+++ b/errors.go
@@ -12,14 +12,15 @@ import (
 	libhttp "github.com/shuLhan/share/lib/http"
 )
 
-func errAttackConflict(ar *AttackResult) error {
+func errAttackConflict(rr *RunRequest) error {
 	res := &libhttp.EndpointResponse{
 		E: liberrors.E{
-			Code:    http.StatusConflict,
-			Message: "another attack is already running",
-			Name:    "ERR_ATTACK_CONFLICT",
+			Code: http.StatusConflict,
+			Message: fmt.Sprintf(`Another attack is already running: "%s/%s`,
+				rr.Target.Name, rr.HttpTarget.Name),
+			Name: "ERR_ATTACK_CONFLICT",
 		},
-		Data: ar,
+		Data: rr,
 	}
 	return res
 }