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network, web_service: Add Verification backend and use new lobby API

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Added verify_backend to load user_data for members. and removed method to generate UID as this is now done server-side.

Added GetUsername function and a "token" param to room_member.
Also added a username to ChatEntry, so that the username can be shown (along with nicknames) in the chat dialog.
This commit is contained in:
zhupengfei 2018-10-27 15:35:01 +08:00
parent 5f0e189238
commit 1a8841f96e
No known key found for this signature in database
GPG Key ID: DD129E108BD09378
12 changed files with 262 additions and 45 deletions
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5
.gitmodules vendored
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@ -42,4 +42,7 @@
url = https://github.com/zeromq/libzmq
[submodule "externals/cppzmq"]
path = externals/cppzmq
url = https://github.com/zeromq/cppzmq
url = https://github.com/zeromq/cppzmq
[submodule "cpp-jwt"]
path = externals/cpp-jwt
url = https://github.com/arun11299/cpp-jwt.git

10
externals/CMakeLists.txt vendored
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@ -82,6 +82,10 @@ if (ENABLE_WEB_SERVICE)
target_include_directories(ssl INTERFACE ./libressl/include)
target_compile_definitions(ssl PRIVATE -DHAVE_INET_NTOP)
# JSON
add_library(json-headers INTERFACE)
target_include_directories(json-headers INTERFACE ./json)
# lurlparser
add_subdirectory(lurlparser EXCLUDE_FROM_ALL)
@ -89,9 +93,9 @@ if (ENABLE_WEB_SERVICE)
add_library(httplib INTERFACE)
target_include_directories(httplib INTERFACE ./httplib)
# JSON
add_library(json-headers INTERFACE)
target_include_directories(json-headers INTERFACE ./json)
# cpp-jwt
add_library(cpp-jwt INTERFACE)
target_include_directories(cpp-jwt INTERFACE ./cpp-jwt/include)
endif()
if (ENABLE_SCRIPTING)

4
src/network/CMakeLists.txt
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@ -7,8 +7,10 @@ add_library(network STATIC
room.h
room_member.cpp
room_member.h
verify_user.cpp
verify_user.h
)
create_target_directory_groups(network)
target_link_libraries(network PRIVATE common enet)
target_link_libraries(network PRIVATE common cpp-jwt enet)

66
src/network/room.cpp
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@ -14,6 +14,7 @@
#include "enet/enet.h"
#include "network/packet.h"
#include "network/room.h"
#include "network/verify_user.h"
namespace Network {
@ -28,6 +29,9 @@ public:
std::atomic<State> state{State::Closed}; ///< Current state of the room.
RoomInformation room_information; ///< Information about this room.
std::string verify_UID; ///< A GUID which may be used for verfication.
mutable std::mutex verify_UID_mutex; ///< Mutex for verify_UID
std::string password; ///< The password required to connect to this room.
struct Member {
@ -35,7 +39,9 @@ public:
std::string console_id_hash; ///< A hash of the console ID of the member.
GameInfo game_info; ///< The current game of the member
MacAddress mac_address; ///< The assigned mac address of the member.
ENetPeer* peer; ///< The remote peer.
/// Data of the user, often including authenticated forum username.
VerifyUser::UserData user_data;
ENetPeer* peer; ///< The remote peer.
};
using MemberList = std::vector<Member>;
MemberList members; ///< Information about the members of this room
@ -48,6 +54,9 @@ public:
/// Thread that receives and dispatches network packets
std::unique_ptr<std::thread> room_thread;
/// Verification backend of the room
std::unique_ptr<VerifyUser::Backend> verify_backend;
/// Thread function that will receive and dispatch messages until the room is destroyed.
void ServerLoop();
void StartLoop();
@ -165,11 +174,6 @@ public:
* to all other clients.
*/
void HandleClientDisconnection(ENetPeer* client);
/**
* Creates a random ID in the form 12345678-1234-1234-1234-123456789012
*/
void CreateUniqueID();
};
// RoomImpl
@ -238,6 +242,9 @@ void Room::RoomImpl::HandleJoinRequest(const ENetEvent* event) {
std::string pass;
packet >> pass;
std::string token;
packet >> token;
if (pass != password) {
SendWrongPassword(event->peer);
return;
@ -276,6 +283,13 @@ void Room::RoomImpl::HandleJoinRequest(const ENetEvent* event) {
member.nickname = nickname;
member.peer = event->peer;
std::string uid;
{
std::lock_guard<std::mutex> lock(verify_UID_mutex);
uid = verify_UID;
}
member.user_data = verify_backend->LoadUserData(uid, token);
{
std::lock_guard<std::mutex> lock(member_mutex);
members.push_back(std::move(member));
@ -407,7 +421,6 @@ void Room::RoomImpl::BroadcastRoomInformation() {
packet << room_information.name;
packet << room_information.description;
packet << room_information.member_slots;
packet << room_information.uid;
packet << room_information.port;
packet << room_information.preferred_game;
@ -419,6 +432,9 @@ void Room::RoomImpl::BroadcastRoomInformation() {
packet << member.mac_address;
packet << member.game_info.name;
packet << member.game_info.id;
packet << member.user_data.username;
packet << member.user_data.display_name;
packet << member.user_data.avatar_url;
}
}
@ -511,6 +527,7 @@ void Room::RoomImpl::HandleChatPacket(const ENetEvent* event) {
Packet out_packet;
out_packet << static_cast<u8>(IdChatMessage);
out_packet << sending_member->nickname;
out_packet << sending_member->user_data.username;
out_packet << message;
ENetPacket* enet_packet = enet_packet_create(out_packet.GetData(), out_packet.GetDataSize(),
@ -567,20 +584,6 @@ void Room::RoomImpl::HandleClientDisconnection(ENetPeer* client) {
BroadcastRoomInformation();
}
void Room::RoomImpl::CreateUniqueID() {
std::uniform_int_distribution<> dis(0, 9999);
std::ostringstream stream;
stream << std::setfill('0') << std::setw(4) << dis(random_gen);
stream << std::setfill('0') << std::setw(4) << dis(random_gen) << "-";
stream << std::setfill('0') << std::setw(4) << dis(random_gen) << "-";
stream << std::setfill('0') << std::setw(4) << dis(random_gen) << "-";
stream << std::setfill('0') << std::setw(4) << dis(random_gen) << "-";
stream << std::setfill('0') << std::setw(4) << dis(random_gen);
stream << std::setfill('0') << std::setw(4) << dis(random_gen);
stream << std::setfill('0') << std::setw(4) << dis(random_gen);
room_information.uid = stream.str();
}
// Room
Room::Room() : room_impl{std::make_unique<RoomImpl>()} {}
@ -589,7 +592,7 @@ Room::~Room() = default;
bool Room::Create(const std::string& name, const std::string& description,
const std::string& server_address, u16 server_port, const std::string& password,
const u32 max_connections, const std::string& preferred_game,
u64 preferred_game_id) {
u64 preferred_game_id, std::unique_ptr<VerifyUser::Backend> verify_backend) {
ENetAddress address;
address.host = ENET_HOST_ANY;
if (!server_address.empty()) {
@ -597,8 +600,8 @@ bool Room::Create(const std::string& name, const std::string& description,
}
address.port = server_port;
// In order to send the room is full message to the connecting client, we need to leave one slot
// open so enet won't reject the incoming connection without telling us
// In order to send the room is full message to the connecting client, we need to leave one
// slot open so enet won't reject the incoming connection without telling us
room_impl->server = enet_host_create(&address, max_connections + 1, NumChannels, 0, 0);
if (!room_impl->server) {
return false;
@ -612,7 +615,7 @@ bool Room::Create(const std::string& name, const std::string& description,
room_impl->room_information.preferred_game = preferred_game;
room_impl->room_information.preferred_game_id = preferred_game_id;
room_impl->password = password;
room_impl->CreateUniqueID();
room_impl->verify_backend = std::move(verify_backend);
room_impl->StartLoop();
return true;
@ -626,12 +629,20 @@ const RoomInformation& Room::GetRoomInformation() const {
return room_impl->room_information;
}
std::string Room::GetVerifyUID() const {
std::lock_guard<std::mutex> lock(room_impl->verify_UID_mutex);
return room_impl->verify_UID;
}
std::vector<Room::Member> Room::GetRoomMemberList() const {
std::vector<Room::Member> member_list;
std::lock_guard<std::mutex> lock(room_impl->member_mutex);
for (const auto& member_impl : room_impl->members) {
Member member;
member.nickname = member_impl.nickname;
member.username = member_impl.user_data.username;
member.display_name = member_impl.user_data.display_name;
member.avatar_url = member_impl.user_data.avatar_url;
member.mac_address = member_impl.mac_address;
member.game_info = member_impl.game_info;
member_list.push_back(member);
@ -643,6 +654,11 @@ bool Room::HasPassword() const {
return !room_impl->password.empty();
}
void Room::SetVerifyUID(const std::string& uid) {
std::lock_guard<std::mutex> lock(room_impl->verify_UID_mutex);
room_impl->verify_UID = uid;
}
void Room::Destroy() {
room_impl->state = State::Closed;
room_impl->room_thread->join();

24
src/network/room.h
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@ -9,6 +9,7 @@
#include <string>
#include <vector>
#include "common/common_types.h"
#include "network/verify_user.h"
namespace Network {
@ -27,7 +28,6 @@ struct RoomInformation {
std::string name; ///< Name of the server
std::string description; ///< Server description
u32 member_slots; ///< Maximum number of members in this room
std::string uid; ///< The unique ID of the room
u16 port; ///< The port of this room
std::string preferred_game; ///< Game to advertise that you want to play
u64 preferred_game_id; ///< Title ID for the advertised game
@ -72,9 +72,12 @@ public:
};
struct Member {
std::string nickname; ///< The nickname of the member.
GameInfo game_info; ///< The current game of the member
MacAddress mac_address; ///< The assigned mac address of the member.
std::string nickname; ///< The nickname of the member.
std::string username; ///< The web services username of the member. Can be empty.
std::string display_name; ///< The web services display name of the member. Can be empty.
std::string avatar_url; ///< Url to the member's avatar. Can be empty.
GameInfo game_info; ///< The current game of the member
MacAddress mac_address; ///< The assigned mac address of the member.
};
Room();
@ -90,6 +93,11 @@ public:
*/
const RoomInformation& GetRoomInformation() const;
/**
* Gets the verify UID of this room.
*/
std::string GetVerifyUID() const;
/**
* Gets a list of the mbmers connected to the room.
*/
@ -108,7 +116,13 @@ 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);
const std::string& preferred_game = "", u64 preferred_game_id = 0,
std::unique_ptr<VerifyUser::Backend> verify_backend = nullptr);
/**
* Sets the verification GUID of the room.
*/
void SetVerifyUID(const std::string& uid);
/**
* Destroys the socket

34
src/network/room_member.cpp
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@ -33,7 +33,11 @@ public:
void SetState(const State new_state);
bool IsConnected() const;
std::string nickname; ///< The nickname of this member.
std::string nickname; ///< The nickname of this member.
std::string username; ///< The username of this member.
mutable std::mutex username_mutex; ///< Mutex for locking username.
MacAddress mac_address; ///< The mac_address of this member.
std::mutex network_mutex; ///< Mutex that controls access to the `client` variable.
@ -80,7 +84,7 @@ public:
*/
void SendJoinRequest(const std::string& nickname, const std::string& console_id_hash,
const MacAddress& preferred_mac = NoPreferredMac,
const std::string& password = "");
const std::string& password = "", const std::string& token = "");
/**
* Extracts a MAC Address from a received ENet packet.
@ -210,7 +214,8 @@ void RoomMember::RoomMemberImpl::Send(Packet&& packet) {
void RoomMember::RoomMemberImpl::SendJoinRequest(const std::string& nickname,
const std::string& console_id_hash,
const MacAddress& preferred_mac,
const std::string& password) {
const std::string& password,
const std::string& token) {
Packet packet;
packet << static_cast<u8>(IdJoinRequest);
packet << nickname;
@ -218,6 +223,7 @@ void RoomMember::RoomMemberImpl::SendJoinRequest(const std::string& nickname,
packet << preferred_mac;
packet << network_version;
packet << password;
packet << token;
Send(std::move(packet));
}
@ -232,7 +238,6 @@ void RoomMember::RoomMemberImpl::HandleRoomInformationPacket(const ENetEvent* ev
packet >> info.name;
packet >> info.description;
packet >> info.member_slots;
packet >> info.uid;
packet >> info.port;
packet >> info.preferred_game;
room_information.name = info.name;
@ -250,6 +255,16 @@ void RoomMember::RoomMemberImpl::HandleRoomInformationPacket(const ENetEvent* ev
packet >> member.mac_address;
packet >> member.game_info.name;
packet >> member.game_info.id;
packet >> member.username;
packet >> member.display_name;
packet >> member.avatar_url;
{
std::lock_guard<std::mutex> lock(username_mutex);
if (member.nickname == nickname) {
username = member.username;
}
}
}
Invoke(room_information);
}
@ -297,6 +312,7 @@ void RoomMember::RoomMemberImpl::HandleChatPacket(const ENetEvent* event) {
ChatEntry chat_entry{};
packet >> chat_entry.nickname;
packet >> chat_entry.username;
packet >> chat_entry.message;
Invoke<ChatEntry>(chat_entry);
}
@ -391,6 +407,11 @@ const std::string& RoomMember::GetNickname() const {
return room_member_impl->nickname;
}
const std::string& RoomMember::GetUsername() const {
std::lock_guard<std::mutex> lock(room_member_impl->username_mutex);
return room_member_impl->username;
}
const MacAddress& RoomMember::GetMacAddress() const {
ASSERT_MSG(IsConnected(), "Tried to get MAC address while not connected");
return room_member_impl->mac_address;
@ -402,7 +423,8 @@ RoomInformation RoomMember::GetRoomInformation() const {
void RoomMember::Join(const std::string& nick, const std::string& console_id_hash,
const char* server_addr, u16 server_port, u16 client_port,
const MacAddress& preferred_mac, const std::string& password) {
const MacAddress& preferred_mac, const std::string& password,
const std::string& token) {
// If the member is connected, kill the connection first
if (room_member_impl->loop_thread && room_member_impl->loop_thread->joinable()) {
Leave();
@ -435,7 +457,7 @@ void RoomMember::Join(const std::string& nick, const std::string& console_id_has
if (net > 0 && event.type == ENET_EVENT_TYPE_CONNECT) {
room_member_impl->nickname = nick;
room_member_impl->StartLoop();
room_member_impl->SendJoinRequest(nick, console_id_hash, preferred_mac, password);
room_member_impl->SendJoinRequest(nick, console_id_hash, preferred_mac, password, token);
SendGameInfo(room_member_impl->current_game_info);
} else {
enet_peer_disconnect(room_member_impl->server, 0);

16
src/network/room_member.h
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@ -35,7 +35,9 @@ struct WifiPacket {
/// Represents a chat message.
struct ChatEntry {
std::string nickname; ///< Nickname of the client who sent this message.
std::string message; ///< Body of the message.
/// Web services username of the client who sent this message, can be empty.
std::string username;
std::string message; ///< Body of the message.
};
/**
@ -64,7 +66,10 @@ public:
};
struct MemberInformation {
std::string nickname; ///< Nickname of the member.
std::string nickname; ///< Nickname of the member.
std::string username; ///< The web services username of the member. Can be empty.
std::string display_name; ///< The web services display name of the member. Can be empty.
std::string avatar_url; ///< Url to the member's avatar. Can be empty.
GameInfo game_info; ///< Name of the game they're currently playing, or empty if they're
/// not playing anything.
MacAddress mac_address; ///< MAC address associated with this member.
@ -100,6 +105,11 @@ public:
*/
const std::string& GetNickname() const;
/**
* Returns the username of the RoomMember.
*/
const std::string& GetUsername() const;
/**
* Returns the MAC address of the RoomMember.
*/
@ -123,7 +133,7 @@ public:
void Join(const std::string& nickname, const std::string& console_id_hash,
const char* server_addr = "127.0.0.1", const u16 server_port = DefaultRoomPort,
const u16 client_port = 0, const MacAddress& preferred_mac = NoPreferredMac,
const std::string& password = "");
const std::string& password = "", const std::string& token = "");
/**
* Sends a WiFi packet to the room.

18
src/network/verify_user.cpp Normal file
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@ -0,0 +1,18 @@
// Copyright 2018 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include "network/verify_user.h"
namespace Network::VerifyUser {
Backend::~Backend() = default;
NullBackend::~NullBackend() = default;
UserData NullBackend::LoadUserData([[maybe_unused]] const std::string& verify_UID,
[[maybe_unused]] const std::string& token) {
return {};
}
} // namespace Network::VerifyUser

45
src/network/verify_user.h Normal file
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@ -0,0 +1,45 @@
// Copyright 2018 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include <string>
#include "common/logging/log.h"
namespace Network::VerifyUser {
struct UserData {
std::string username;
std::string display_name;
std::string avatar_url;
};
/**
* A backend used for verifying users and loading user data.
*/
class Backend {
public:
virtual ~Backend();
/**
* Verifies the given token and loads the information into a UserData struct.
* @param verify_UID A GUID that may be used for verification.
* @param token A token that contains user data and verification data. The format and content is
* decided by backends.
*/
virtual UserData LoadUserData(const std::string& verify_UID, const std::string& token) = 0;
};
/**
* A null backend where the token is ignored.
* No verification is performed here and the function returns an empty UserData.
*/
class NullBackend final : public Backend {
public:
~NullBackend();
UserData LoadUserData(const std::string& verify_UID, const std::string& token) override;
};
} // namespace Network::VerifyUser

4
src/web_service/CMakeLists.txt
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@ -5,6 +5,8 @@ add_library(web_service STATIC
telemetry_json.h
verify_login.cpp
verify_login.h
verify_user_jwt.cpp
verify_user_jwt.h
web_backend.cpp
web_backend.h
)
@ -15,4 +17,4 @@ get_directory_property(OPENSSL_LIBS
DIRECTORY ${PROJECT_SOURCE_DIR}/externals/libressl
DEFINITION OPENSSL_LIBS)
target_compile_definitions(web_service PRIVATE -DCPPHTTPLIB_OPENSSL_SUPPORT)
target_link_libraries(web_service PRIVATE common json-headers ${OPENSSL_LIBS} httplib lurlparser)
target_link_libraries(web_service PRIVATE common network json-headers ${OPENSSL_LIBS} httplib lurlparser cpp-jwt)

56
src/web_service/verify_user_jwt.cpp Normal file
View File

@ -0,0 +1,56 @@
// Copyright 2018 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <system_error>
#include <jwt/jwt.hpp>
#include "common/logging/log.h"
#include "common/web_result.h"
#include "web_service/verify_user_jwt.h"
#include "web_service/web_backend.h"
namespace WebService {
static std::string public_key;
std::string GetPublicKey(const std::string& host) {
if (public_key.empty()) {
Client client(host, "", ""); // no need for credentials here
public_key = client.GetJson("/jwt/external/key.pem", true).returned_data;
if (public_key.empty()) {
LOG_ERROR(WebService, "Could not fetch external JWT public key, verification may fail");
} else {
LOG_INFO(WebService, "Fetched external JWT public key (size={})", public_key.size());
}
}
return public_key;
}
VerifyUserJWT::VerifyUserJWT(const std::string& host) : pub_key(GetPublicKey(host)) {}
Network::VerifyUser::UserData VerifyUserJWT::LoadUserData(const std::string& verify_UID,
const std::string& token) {
const std::string audience = fmt::format("external-{}", verify_UID);
using namespace jwt::params;
std::error_code error;
auto decoded =
jwt::decode(token, algorithms({"rs256"}), error, secret(pub_key), issuer("citra-core"),
aud(audience), validate_iat(true), validate_jti(true));
if (error) {
LOG_INFO(WebService, "Verification failed: category={}, code={}, message={}",
error.category().name(), error.value(), error.message());
return {};
}
Network::VerifyUser::UserData user_data{};
if (decoded.payload().has_claim("username")) {
user_data.username = decoded.payload().get_claim_value<std::string>("username");
}
if (decoded.payload().has_claim("displayName")) {
user_data.display_name = decoded.payload().get_claim_value<std::string>("displayName");
}
if (decoded.payload().has_claim("avatarUrl")) {
user_data.avatar_url = decoded.payload().get_claim_value<std::string>("avatarUrl");
}
return user_data;
}
} // namespace WebService

25
src/web_service/verify_user_jwt.h Normal file
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@ -0,0 +1,25 @@
// Copyright 2018 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include <fmt/format.h>
#include "network/verify_user.h"
#include "web_service/web_backend.h"
namespace WebService {
class VerifyUserJWT final : public Network::VerifyUser::Backend {
public:
VerifyUserJWT(const std::string& host);
~VerifyUserJWT() = default;
Network::VerifyUser::UserData LoadUserData(const std::string& verify_UID,
const std::string& token) override;
private:
std::string pub_key;
};
} // namespace WebService