MMCTL: Add import delete cmd for removing the import files (#29764)

Co-authored-by: Ben Schumacher <ben.schumacher@mattermost.com>

server/channels/api4/import.go

@@ -9,10 +9,12 @@ import (
 
 	"github.com/mattermost/mattermost/server/public/model"
 	"github.com/mattermost/mattermost/server/public/shared/mlog"
+	"github.com/mattermost/mattermost/server/v8/channels/audit"
 )
 
 func (api *API) InitImport() {
 	api.BaseRoutes.Imports.Handle("", api.APISessionRequired(listImports)).Methods(http.MethodGet)
+	api.BaseRoutes.Import.Handle("", api.APISessionRequired(deleteImport)).Methods(http.MethodDelete)
 }
 
 func listImports(c *Context, w http.ResponseWriter, r *http.Request) {
@@ -31,3 +33,23 @@ func listImports(c *Context, w http.ResponseWriter, r *http.Request) {
 		c.Logger.Warn("Error writing imports", mlog.Err(err))
 	}
 }
+
+func deleteImport(c *Context, w http.ResponseWriter, r *http.Request) {
+	importName := c.Params.ImportName
+	auditRec := c.MakeAuditRecord("deleteImport", audit.Fail)
+	defer c.LogAuditRec(auditRec)
+	auditRec.AddMeta("import_name", importName)
+
+	if !c.App.SessionHasPermissionTo(*c.AppContext.Session(), model.PermissionManageSystem) {
+		c.SetPermissionError(model.PermissionManageSystem)
+		return
+	}
+
+	if err := c.App.DeleteImport(importName); err != nil {
+		c.Err = err
+		return
+	}
+
+	auditRec.Success()
+	ReturnStatusOK(w)
+}