/// <summary>Checks if user has a specified privilege.</summary>
/// <param name="context">Context of the command execution.</param>
/// <param name="userID">ID of the user.</param>
/// <param name="privileges">Required privileges flags.</param>
/// <param name="cancellationToken">Cancellation token for cancelling the task.</param>
/// <returns>True if user has at least one of specified privileges; otherwise false.</returns>
public static async Task <bool> CheckPrivilegeAsync(ICommandContext context, uint userID, WolfGroupCapabilities privileges, CancellationToken cancellationToken = default)
{
WolfGroup group = await context.GetRecipientAsync <WolfGroup>(cancellationToken).ConfigureAwait(false);
if (!group.Members.TryGetValue(userID, out WolfGroupMember member) && group.Members?.Any() != true)
{
GroupMembersListResponse membersResponse = await context.Client.SendAsync <GroupMembersListResponse>(
new GroupMembersListMessage(group.ID), cancellationToken).ConfigureAwait(false);
member = membersResponse.GroupMembers.FirstOrDefault(u => u.UserID == userID);
}
if (member == null)
{
return(false);
}
return((privileges & member.Capabilities) == member.Capabilities);
}
/// <summary>Checks if group members are downloaded. If not, it'll attempt to repopulate it.</summary>
/// <param name="client">Client to request group members with.</param>
/// <param name="group">Group to validate members of.</param>
/// <param name="cancellationToken">Token to cancel the task.</param>
/// <returns>True if members list is valid after the operation; otherwise false.</returns>
public static async Task <bool> RevalidateGroupMembersAsync(this IWolfClient client, WolfGroup group,
CancellationToken cancellationToken = default)
{
if (group == null)
{
throw new ArgumentNullException(nameof(group));
}
if (group.Members?.Any() == true)
{
return(true);
}
if (client == null)
{
throw new ArgumentNullException(nameof(client));
}
try
{
GroupMembersListResponse membersResponse = await client.SendAsync <GroupMembersListResponse>(
new GroupMembersListMessage(group.ID), cancellationToken).ConfigureAwait(false);
// client should be configured to intercept this response
// however, just in case it's not (like when caching is disabled), do it here as well
if (membersResponse?.GroupMembers?.Any() == true)
{
try
{
EntityModificationHelper.ReplaceAllGroupMembers(group, membersResponse.GroupMembers);
}
catch (NotSupportedException) { return(false); }
return(true);
}
}
// handle case when requesting profiles for group the user is not in
catch (MessageSendingException ex) when(ex.StatusCode == System.Net.HttpStatusCode.Forbidden)
{
}
return(false);
}