41 lines
1.6 KiB
C#
41 lines
1.6 KiB
C#
using SharpChat.EventStorage;
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using SharpChat.SockChat.PacketsS2C;
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using System.Linq;
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namespace SharpChat.SockChat.Commands {
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public class MessageDeleteCommand : ISockChatClientCommand {
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public bool IsMatch(SockChatClientCommandContext ctx) {
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return ctx.NameEquals("delmsg") || (
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ctx.NameEquals("delete")
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&& ctx.Args.FirstOrDefault()?.All(char.IsDigit) == true
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);
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}
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public void Dispatch(SockChatClientCommandContext ctx) {
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bool deleteAnyMessage = ctx.User.Permissions.HasFlag(UserPermissions.DeleteAnyMessage);
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if(!deleteAnyMessage && !ctx.User.Permissions.HasFlag(UserPermissions.DeleteOwnMessage)) {
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ctx.Chat.SendTo(ctx.User, new CommandNotAllowedErrorS2CPacket(ctx.Name));
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return;
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}
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string? firstArg = ctx.Args.FirstOrDefault();
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if(string.IsNullOrWhiteSpace(firstArg) || !firstArg.All(char.IsDigit) || !long.TryParse(firstArg, out long delSeqId)) {
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ctx.Chat.SendTo(ctx.User, new CommandFormatErrorS2CPacket());
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return;
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}
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StoredEventInfo? delMsg = ctx.Chat.Events.GetEvent(delSeqId);
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if(delMsg == null || delMsg.Sender?.Rank > ctx.User.Rank || (!deleteAnyMessage && delMsg.Sender?.UserId != ctx.User.UserId)) {
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ctx.Chat.SendTo(ctx.User, new MessageDeleteNotAllowedErrorS2CPacket());
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return;
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}
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ctx.Chat.Events.RemoveEvent(delMsg);
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ctx.Chat.Send(new MessageDeleteS2CPacket(delMsg.Id));
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}
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}
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}
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