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https://github.com/citra-emu/citra-nightly.git
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network/room: Moderation implementation
Currently consist of 4 moderation commands (kick, ban, unban and get ban list).
This commit is contained in:
zhupengfei
parent
6c29d441f4
commit
38f86cce94
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@ -48,6 +48,10 @@ public:
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mutable std::mutex member_mutex; ///< Mutex for locking the members list
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/// This should be a std::shared_mutex as soon as C++17 is supported
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UsernameBanList username_ban_list; ///< List of banned usernames
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IPBanList ip_ban_list; ///< List of banned IP addresses
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mutable std::mutex ban_list_mutex; ///< Mutex for the ban lists
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RoomImpl()
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: random_gen(std::random_device()()), NintendoOUI{0x00, 0x1F, 0x32, 0x00, 0x00, 0x00} {}
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@ -68,6 +72,30 @@ public:
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*/
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void HandleJoinRequest(const ENetEvent* event);
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/**
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* Parses and answers a kick request from a client.
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* Validates the permissions and that the given user exists and then kicks the member.
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*/
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void HandleModKickPacket(const ENetEvent* event);
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/**
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* Parses and answers a ban request from a client.
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* Validates the permissions and bans the user (by forum username or IP).
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*/
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void HandleModBanPacket(const ENetEvent* event);
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/**
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* Parses and answers a unban request from a client.
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* Validates the permissions and unbans the address.
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*/
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void HandleModUnbanPacket(const ENetEvent* event);
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/**
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* Parses and answers a get ban list request from a client.
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* Validates the permissions and returns the ban list.
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*/
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void HandleModGetBanListPacket(const ENetEvent* event);
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/**
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* Returns whether the nickname is valid, ie. isn't already taken by someone else in the room.
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*/
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@ -85,6 +113,11 @@ public:
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*/
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bool IsValidConsoleId(const std::string& console_id_hash) const;
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/**
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* Returns whether a user has mod permissions.
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*/
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bool HasModPermission(const ENetPeer* client) const;
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/**
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* Sends a ID_ROOM_IS_FULL message telling the client that the room is full.
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*/
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@ -122,6 +155,32 @@ public:
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*/
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void SendJoinSuccess(ENetPeer* client, MacAddress mac_address);
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/**
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* Sends a IdHostKicked message telling the client that they have been kicked.
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*/
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void SendUserKicked(ENetPeer* client);
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/**
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* Sends a IdHostBanned message telling the client that they have been banned.
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*/
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void SendUserBanned(ENetPeer* client);
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/**
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* Sends a IdModPermissionDenied message telling the client that they do not have mod
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* permission.
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*/
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void SendModPermissionDenied(ENetPeer* client);
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/**
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* Sends a IdModNoSuchUser message telling the client that the given user could not be found.
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*/
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void SendModNoSuchUser(ENetPeer* client);
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/**
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* Sends the ban list in response to a client's request for getting ban list.
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*/
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void SendModBanListResponse(ENetPeer* client);
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/**
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* Notifies the members that the room is closed,
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*/
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@ -202,6 +261,19 @@ void Room::RoomImpl::ServerLoop() {
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case IdChatMessage:
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HandleChatPacket(&event);
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break;
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// Moderation
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case IdModKick:
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HandleModKickPacket(&event);
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break;
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case IdModBan:
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HandleModBanPacket(&event);
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break;
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case IdModUnban:
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HandleModUnbanPacket(&event);
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break;
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case IdModGetBanList:
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HandleModGetBanListPacket(&event);
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break;
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}
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enet_packet_destroy(event.packet);
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break;
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@ -296,6 +368,29 @@ void Room::RoomImpl::HandleJoinRequest(const ENetEvent* event) {
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}
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member.user_data = verify_backend->LoadUserData(uid, token);
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{
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std::lock_guard<std::mutex> lock(ban_list_mutex);
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// Check username ban
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if (!member.user_data.username.empty() &&
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std::find(username_ban_list.begin(), username_ban_list.end(),
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member.user_data.username) != username_ban_list.end()) {
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SendUserBanned(event->peer);
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return;
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}
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// Check IP ban
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char ip_raw[256];
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enet_address_get_host_ip(&event->peer->address, ip_raw, sizeof(ip_raw) - 1);
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std::string ip = ip_raw;
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if (std::find(ip_ban_list.begin(), ip_ban_list.end(), ip) != ip_ban_list.end()) {
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SendUserBanned(event->peer);
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return;
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}
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}
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// Notify everyone that the user has joined.
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SendStatusMessage(IdMemberJoin, member.nickname, member.user_data.username);
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@ -309,6 +404,153 @@ void Room::RoomImpl::HandleJoinRequest(const ENetEvent* event) {
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SendJoinSuccess(event->peer, preferred_mac);
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}
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void Room::RoomImpl::HandleModKickPacket(const ENetEvent* event) {
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if (!HasModPermission(event->peer)) {
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SendModPermissionDenied(event->peer);
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return;
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}
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Packet packet;
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packet.Append(event->packet->data, event->packet->dataLength);
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packet.IgnoreBytes(sizeof(u8)); // Ignore the message type
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std::string nickname;
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packet >> nickname;
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std::string username;
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{
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std::lock_guard<std::mutex> lock(member_mutex);
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const auto target_member =
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std::find_if(members.begin(), members.end(),
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[&nickname](const auto& member) { return member.nickname == nickname; });
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if (target_member == members.end()) {
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SendModNoSuchUser(event->peer);
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return;
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}
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// Notify the kicked member
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SendUserKicked(target_member->peer);
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username = target_member->user_data.username;
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enet_peer_disconnect(target_member->peer, 0);
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members.erase(target_member);
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}
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// Announce the change to all clients.
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SendStatusMessage(IdMemberKicked, nickname, username);
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BroadcastRoomInformation();
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}
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void Room::RoomImpl::HandleModBanPacket(const ENetEvent* event) {
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if (!HasModPermission(event->peer)) {
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SendModPermissionDenied(event->peer);
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return;
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}
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Packet packet;
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packet.Append(event->packet->data, event->packet->dataLength);
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packet.IgnoreBytes(sizeof(u8)); // Ignore the message type
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std::string nickname;
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packet >> nickname;
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std::string username;
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std::string ip;
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{
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std::lock_guard<std::mutex> lock(member_mutex);
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const auto target_member =
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std::find_if(members.begin(), members.end(),
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[&nickname](const auto& member) { return member.nickname == nickname; });
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if (target_member == members.end()) {
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SendModNoSuchUser(event->peer);
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return;
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}
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// Notify the banned member
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SendUserBanned(target_member->peer);
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nickname = target_member->nickname;
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username = target_member->user_data.username;
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char ip_raw[256];
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enet_address_get_host_ip(&target_member->peer->address, ip_raw, sizeof(ip_raw) - 1);
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ip = ip_raw;
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enet_peer_disconnect(target_member->peer, 0);
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members.erase(target_member);
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}
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{
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std::lock_guard<std::mutex> lock(ban_list_mutex);
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if (!username.empty()) {
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// Ban the forum username
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if (std::find(username_ban_list.begin(), username_ban_list.end(), username) ==
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username_ban_list.end()) {
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username_ban_list.emplace_back(username);
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}
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}
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// Ban the member's IP as well
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if (std::find(ip_ban_list.begin(), ip_ban_list.end(), ip) == ip_ban_list.end()) {
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ip_ban_list.emplace_back(ip);
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}
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}
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// Announce the change to all clients.
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SendStatusMessage(IdMemberBanned, nickname, username);
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BroadcastRoomInformation();
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}
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void Room::RoomImpl::HandleModUnbanPacket(const ENetEvent* event) {
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if (!HasModPermission(event->peer)) {
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SendModPermissionDenied(event->peer);
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return;
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}
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Packet packet;
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packet.Append(event->packet->data, event->packet->dataLength);
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packet.IgnoreBytes(sizeof(u8)); // Ignore the message type
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std::string address;
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packet >> address;
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bool unbanned = false;
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{
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std::lock_guard<std::mutex> lock(ban_list_mutex);
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auto it = std::find(username_ban_list.begin(), username_ban_list.end(), address);
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if (it != username_ban_list.end()) {
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unbanned = true;
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username_ban_list.erase(it);
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}
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it = std::find(ip_ban_list.begin(), ip_ban_list.end(), address);
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if (it != ip_ban_list.end()) {
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unbanned = true;
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ip_ban_list.erase(it);
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}
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}
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if (unbanned) {
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SendStatusMessage(IdAddressUnbanned, address, "");
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} else {
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SendModNoSuchUser(event->peer);
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}
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}
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void Room::RoomImpl::HandleModGetBanListPacket(const ENetEvent* event) {
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if (!HasModPermission(event->peer)) {
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SendModPermissionDenied(event->peer);
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return;
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}
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SendModBanListResponse(event->peer);
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}
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bool Room::RoomImpl::IsValidNickname(const std::string& nickname) const {
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// A nickname is valid if it matches the regex and is not already taken by anybody else in the
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// room.
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@ -336,6 +578,22 @@ bool Room::RoomImpl::IsValidConsoleId(const std::string& console_id_hash) const
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});
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}
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bool Room::RoomImpl::HasModPermission(const ENetPeer* client) const {
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if (room_information.host_username.empty())
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return false; // This room does not support moderation
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std::lock_guard<std::mutex> lock(member_mutex);
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const auto sending_member =
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std::find_if(members.begin(), members.end(),
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[client](const auto& member) { return member.peer == client; });
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if (sending_member == members.end()) {
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return false;
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}
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if (sending_member->user_data.username != room_information.host_username) {
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return false;
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}
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return true;
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}
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void Room::RoomImpl::SendNameCollision(ENetPeer* client) {
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Packet packet;
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packet << static_cast<u8>(IdNameCollision);
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@ -407,6 +665,61 @@ void Room::RoomImpl::SendJoinSuccess(ENetPeer* client, MacAddress mac_address) {
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enet_host_flush(server);
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}
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void Room::RoomImpl::SendUserKicked(ENetPeer* client) {
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Packet packet;
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packet << static_cast<u8>(IdHostKicked);
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ENetPacket* enet_packet =
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enet_packet_create(packet.GetData(), packet.GetDataSize(), ENET_PACKET_FLAG_RELIABLE);
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enet_peer_send(client, 0, enet_packet);
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enet_host_flush(server);
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}
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void Room::RoomImpl::SendUserBanned(ENetPeer* client) {
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Packet packet;
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packet << static_cast<u8>(IdHostBanned);
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ENetPacket* enet_packet =
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enet_packet_create(packet.GetData(), packet.GetDataSize(), ENET_PACKET_FLAG_RELIABLE);
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enet_peer_send(client, 0, enet_packet);
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enet_host_flush(server);
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}
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void Room::RoomImpl::SendModPermissionDenied(ENetPeer* client) {
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Packet packet;
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packet << static_cast<u8>(IdModPermissionDenied);
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ENetPacket* enet_packet =
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enet_packet_create(packet.GetData(), packet.GetDataSize(), ENET_PACKET_FLAG_RELIABLE);
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enet_peer_send(client, 0, enet_packet);
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enet_host_flush(server);
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}
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void Room::RoomImpl::SendModNoSuchUser(ENetPeer* client) {
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Packet packet;
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packet << static_cast<u8>(IdModNoSuchUser);
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ENetPacket* enet_packet =
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enet_packet_create(packet.GetData(), packet.GetDataSize(), ENET_PACKET_FLAG_RELIABLE);
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enet_peer_send(client, 0, enet_packet);
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enet_host_flush(server);
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}
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void Room::RoomImpl::SendModBanListResponse(ENetPeer* client) {
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Packet packet;
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packet << static_cast<u8>(IdModBanListResponse);
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{
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std::lock_guard<std::mutex> lock(ban_list_mutex);
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packet << username_ban_list;
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packet << ip_ban_list;
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}
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ENetPacket* enet_packet =
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enet_packet_create(packet.GetData(), packet.GetDataSize(), ENET_PACKET_FLAG_RELIABLE);
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enet_peer_send(client, 0, enet_packet);
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enet_host_flush(server);
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}
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void Room::RoomImpl::SendCloseMessage() {
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Packet packet;
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packet << static_cast<u8>(IdCloseRoom);
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@ -450,6 +763,7 @@ void Room::RoomImpl::BroadcastRoomInformation() {
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packet << room_information.member_slots;
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packet << room_information.port;
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packet << room_information.preferred_game;
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packet << room_information.host_username;
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packet << static_cast<u32>(members.size());
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{
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@ -625,8 +939,10 @@ Room::~Room() = default;
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bool Room::Create(const std::string& name, const std::string& description,
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const std::string& server_address, u16 server_port, const std::string& password,
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const u32 max_connections, const std::string& preferred_game,
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u64 preferred_game_id, std::unique_ptr<VerifyUser::Backend> verify_backend) {
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const u32 max_connections, const std::string& host_username,
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const std::string& preferred_game, u64 preferred_game_id,
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std::unique_ptr<VerifyUser::Backend> verify_backend,
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const Room::BanList& ban_list) {
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ENetAddress address;
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address.host = ENET_HOST_ANY;
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if (!server_address.empty()) {
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@ -648,8 +964,11 @@ bool Room::Create(const std::string& name, const std::string& description,
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room_impl->room_information.port = server_port;
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room_impl->room_information.preferred_game = preferred_game;
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room_impl->room_information.preferred_game_id = preferred_game_id;
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room_impl->room_information.host_username = host_username;
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room_impl->password = password;
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room_impl->verify_backend = std::move(verify_backend);
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room_impl->username_ban_list = ban_list.first;
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room_impl->ip_ban_list = ban_list.second;
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room_impl->StartLoop();
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return true;
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@ -668,6 +987,11 @@ std::string Room::GetVerifyUID() const {
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return room_impl->verify_UID;
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}
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Room::BanList Room::GetBanList() const {
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std::lock_guard<std::mutex> lock(room_impl->ban_list_mutex);
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return {room_impl->username_ban_list, room_impl->ip_ban_list};
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}
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std::vector<Room::Member> Room::GetRoomMemberList() const {
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std::vector<Room::Member> member_list;
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std::lock_guard<std::mutex> lock(room_impl->member_mutex);
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@ -31,6 +31,7 @@ struct RoomInformation {
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u16 port; ///< The port of this room
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std::string preferred_game; ///< Game to advertise that you want to play
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u64 preferred_game_id; ///< Title ID for the advertised game
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std::string host_username; ///< Forum username of the host
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};
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struct GameInfo {
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@ -62,12 +63,26 @@ enum RoomMessageTypes : u8 {
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IdRoomIsFull,
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IdConsoleIdCollision,
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IdStatusMessage,
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IdHostKicked,
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IdHostBanned,
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/// Moderation requests
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IdModKick,
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IdModBan,
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IdModUnban,
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IdModGetBanList,
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// Moderation responses
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IdModBanListResponse,
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IdModPermissionDenied,
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IdModNoSuchUser,
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};
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/// Types of system status messages
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enum StatusMessageTypes : u8 {
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IdMemberJoin = 1, ///< Member joining
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IdMemberLeave, ///< Member leaving
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IdMemberJoin = 1, ///< Member joining
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IdMemberLeave, ///< Member leaving
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IdMemberKicked, ///< A member is kicked from the room
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IdMemberBanned, ///< A member is banned from the room
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IdAddressUnbanned, ///< A username / ip address is unbanned from the room
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};
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/// This is what a server [person creating a server] would use.
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@ -115,6 +130,11 @@ public:
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*/
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bool HasPassword() const;
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using UsernameBanList = std::vector<std::string>;
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using IPBanList = std::vector<std::string>;
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using BanList = std::pair<UsernameBanList, IPBanList>;
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/**
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* Creates the socket for this room. Will bind to default address if
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* server is empty string.
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@ -123,14 +143,21 @@ public:
|
|||
const std::string& server = "", u16 server_port = DefaultRoomPort,
|
||||
const std::string& password = "",
|
||||
const u32 max_connections = MaxConcurrentConnections,
|
||||
const std::string& preferred_game = "", u64 preferred_game_id = 0,
|
||||
std::unique_ptr<VerifyUser::Backend> verify_backend = nullptr);
|
||||
const std::string& host_username = "", const std::string& preferred_game = "",
|
||||
u64 preferred_game_id = 0,
|
||||
std::unique_ptr<VerifyUser::Backend> verify_backend = nullptr,
|
||||
const BanList& ban_list = {});
|
||||
|
||||
/**
|
||||
* Sets the verification GUID of the room.
|
||||
*/
|
||||
void SetVerifyUID(const std::string& uid);
|
||||
|
||||
/**
|
||||
* Gets the ban list (including banned forum usernames and IPs) of the room.
|
||||
*/
|
||||
BanList GetBanList() const;
|
||||
|
||||
/**
|
||||
* Destroys the socket
|
||||
*/
|
||||
|
|
|
|||
Loading…
Reference in a new issue