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Consider verifying that the user has sufficient permissions when calling List.AddItem()

Before adding a ListItem in a List, consider verifying that the user has permission to perform that action.

CheckId SPC059011
TypeName CheckHasListItemPermissionsBeforeAdding
Severity Warning
Type Assembly

Bad Practice

    using (ClientContext context = new ClientContext("http://yoursite"))
    {
        List list = context.Web.Lists.GetByTitle("MyCustomerList");
        ListItemCreationInformation itemCreateInfo = new ListItemCreationInformation();
        ListItem newItem = list.AddItem(itemCreateInfo);
        newItem["Title"] = "My New List Item";
        newItem.Update();
        context.ExecuteQuery();
    }

Good Practice
    using (ClientContext context = new ClientContext("http://yoursite"))
    {
        List list = context.Web.Lists.GetByTitle("MyCustomerList");
        context.Load(list, l => l.EffectiveBasePermissions);
        context.ExecuteQuery();

        if (list.EffectiveBasePermissions.Has(PermissionKind.AddListItems))
        {
            ListItemCreationInformation itemCreateInfo = new ListItemCreationInformation();
            ListItem newItem = list.AddItem(itemCreateInfo);
            newItem["Title"] = "My New List Item";
            newItem.Update();
            context.ExecuteQuery();
        }
    }

To suppress this violation in managed code add the following attribute to the method which contains the instruction (available since SPCAF version v5.2). Learn more about SuppressMessage here.

// Important: Ensure to have #define CODE_ANALYSIS at the beginning of your .cs file
[SuppressMessage("SPCAF.Rules.ManagedCSOM.CSOMBestPracticesGroup", "SPC059011:CheckHasListItemPermissionsBeforeAdding", Justification = "Provide reason for suppression here")]
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