fixes for iw4m, gsc, notifes and more

src/client/component/chat.cpp

@@ -0,0 +1,60 @@
+#include <std_include.hpp>
+#include "loader/component_loader.hpp"
+#include "game/game.hpp"
+
+#include <utils/string.hpp>
+#include <utils/hook.hpp>
+
+#include "command.hpp"
+#include "client_command.hpp"
+
+namespace chat
+{
+	namespace
+	{
+		void cmd_say_f(game::gentity_s* ent, const command::params_sv& params)
+		{
+			if (params.size() < 2)
+			{
+				return;
+			}
+
+			auto mode = 0;
+			if (std::strcmp(params[0], "say_team") == 0)
+			{
+				mode = 1;
+			}
+
+			auto p = params.join(1);
+			game::Scr_AddString(game::SCRIPTINSTANCE_SERVER, p.data() + 1); // Skip special char
+			game::Scr_Notify_Canon(ent, game::Scr_CanonHash(params[0]), 1);
+
+			game::G_Say(ent, nullptr, mode, p.data());
+		}
+
+		void cmd_chat_f(game::gentity_s* ent, const command::params_sv& params)
+		{
+			auto p = params.join(1);
+
+			// Not a mistake! + 2 is necessary for the GSC script to receive only the actual chat text
+			game::Scr_AddString(game::SCRIPTINSTANCE_SERVER, p.data() + 2);
+			game::Scr_Notify_Canon(ent, game::Scr_CanonHash(params[0]), 1);
+
+			utils::hook::invoke<void>(0x140298E70, ent, p.data());
+		}
+	}
+
+	class component final : public server_component
+	{
+	public:
+		void post_unpack() override
+		{
+			client_command::add("say", cmd_say_f);
+			client_command::add("say_team", cmd_say_f);
+
+			client_command::add("chat", cmd_chat_f);
+		}
+	};
+}
+
+REGISTER_COMPONENT(chat::component)

src/client/component/client_command.cpp

@@ -0,0 +1,57 @@
+#include <std_include.hpp>
+#include "loader/component_loader.hpp"
+
+#include "game/game.hpp"
+
+#include <utils/hook.hpp>
+#include <utils/string.hpp>
+
+#include "command.hpp"
+#include "client_command.hpp"
+
+namespace client_command
+{
+	namespace
+	{
+		std::unordered_map<std::string, callback> handlers;
+
+		void client_command_stub(const int client_num)
+		{
+			const auto ent = &game::g_entities[client_num];
+
+			if (ent->client == nullptr)
+			{
+				// Client is not fully in game
+				return;
+			}
+
+			const command::params_sv params;
+
+			const auto command = utils::string::to_lower(params.get(0));
+			if (const auto got = handlers.find(command); got != handlers.end())
+			{
+				got->second(ent, params);
+				return;
+			}
+
+			utils::hook::invoke<void>(0x140295C40, client_num);
+		}
+	}
+
+	void add(const std::string& name, const callback& cmd)
+	{
+		const auto command = utils::string::to_lower(name);
+		handlers[command] = cmd;
+	}
+
+	class component final : public server_component
+	{
+	public:
+		void post_unpack() override
+		{
+			utils::hook::call(0x14052F81B_g, client_command_stub);
+		}
+	};
+}
+
+REGISTER_COMPONENT(client_command::component)

src/client/component/client_command.hpp

@@ -0,0 +1,7 @@
+#pragma once
+
+namespace client_command
+{
+	using callback = std::function<void(game::gentity_s* ent, const command::params_sv& params)>;
+	void add(const std::string& name, const callback& cmd);
+}

src/client/component/command.cpp

@@ -18,6 +18,12 @@ namespace command
 			return command_map;
 		}
 
+		std::unordered_map<std::string, sv_command_param_function>& get_sv_command_map()
+		{
+			static std::unordered_map<std::string, sv_command_param_function> command_map{};
+			return command_map;
+		}
+
 		void execute_custom_command()
 		{
 			const params params{};
@@ -31,6 +37,19 @@ namespace command
 			}
 		}
 
+		void execute_custom_sv_command()
+		{
+			const params_sv params{};
+			const auto command = utils::string::to_lower(params[0]);
+
+			auto& map = get_sv_command_map();
+			const auto entry = map.find(command);
+			if (entry != map.end())
+			{
+				entry->second(params);
+			}
+		}
+
 		game::CmdArgs* get_cmd_args()
 		{
 			return game::Sys_GetTLS()->cmdArgs;
@@ -67,6 +86,40 @@ namespace command
 		return get_cmd_args()->argc[this->nesting_];
 	}
 
+	params_sv::params_sv()
+		: nesting_(game::sv_cmd_args->nesting)
+	{
+		assert(this->nesting_ < game::CMD_MAX_NESTING);
+	}
+
+	int params_sv::size() const
+	{
+		return game::sv_cmd_args->argc[this->nesting_];
+	}
+
+	const char* params_sv::get(const int index) const
+	{
+		if (index >= this->size())
+		{
+			return "";
+		}
+
+		return game::sv_cmd_args->argv[this->nesting_][index];
+	}
+
+	std::string params_sv::join(const int index) const
+	{
+		std::string result;
+
+		for (auto i = index; i < this->size(); ++i)
+		{
+			if (i > index) result.append(" ");
+			result.append(this->get(i));
+		}
+
+		return result;
+	}
+
 	const char* params::get(const int index) const
 	{
 		if (index >= this->size())
@@ -118,6 +171,27 @@ namespace command
 		game::Cmd_AddCommandInternal(cmd_string, execute_custom_command, cmd_function);
 		cmd_function->autoComplete = 1;
 	}
+
+	void add_sv(const std::string& command, sv_command_param_function function)
+	{
+		auto lower_command = utils::string::to_lower(command);
+
+		auto& map = get_sv_command_map();
+		const auto is_registered = map.contains(lower_command);
+
+		map[std::move(lower_command)] = std::move(function);
+
+		if (is_registered)
+		{
+			return;
+		}
+
+		auto& allocator = *utils::memory::get_allocator();
+		const auto* cmd_string = allocator.duplicate_string(command);
+
+		game::Cmd_AddCommandInternal(cmd_string, game::Cbuf_AddServerText_f, allocator.allocate<game::cmd_function_s>());
+		game::Cmd_AddServerCommandInternal(cmd_string, execute_custom_sv_command, allocator.allocate<game::cmd_function_s>());
+	}
 }
 
 REGISTER_COMPONENT(command::component)

src/client/component/command.hpp

@@ -7,11 +7,29 @@ namespace command
 	public:
 		params();
 
-		int size() const;
-		const char* get(int index) const;
-		std::string join(int index) const;
+		[[nodiscard]] int size() const;
+		[[nodiscard]] const char* get(int index) const;
+		[[nodiscard]] std::string join(int index) const;
 
-		const char* operator[](const int index) const
+		[[nodiscard]] const char* operator[](const int index) const
+		{
+			return this->get(index); //
+		}
+
+	private:
+		int nesting_;
+	};
+
+	class params_sv
+	{
+	public:
+		params_sv();
+
+		[[nodiscard]] int size() const;
+		[[nodiscard]] const char* get(int index) const;
+		[[nodiscard]] std::string join(int index) const;
+
+		[[nodiscard]] const char* operator[](const int index) const
 		{
 			return this->get(index); //
 		}
@@ -22,7 +40,10 @@ namespace command
 
 	using command_function = std::function<void()>;
 	using command_param_function = std::function<void(const params&)>;
+	using sv_command_param_function = std::function<void(const params_sv&)>;
 
 	void add(const std::string& command, command_function function);
 	void add(const std::string& command, command_param_function function);
+
+	void add_sv(const std::string& command, sv_command_param_function function);
 }

src/client/component/console_command.cpp

@@ -0,0 +1,51 @@
+#include <std_include.hpp>
+#include "loader/component_loader.hpp"
+
+#include "game/game.hpp"
+
+#include <utils/hook.hpp>
+#include <utils/string.hpp>
+
+#include "command.hpp"
+#include "console_command.hpp"
+
+namespace console_command
+{
+	namespace
+	{
+		utils::hook::detour console_command_hook;
+
+		std::unordered_map<std::string, callback> handlers;
+
+		int console_command_stub()
+		{
+			const command::params params;
+
+			const auto command = utils::string::to_lower(params.get(0));
+			if (const auto got = handlers.find(command); got != handlers.end())
+			{
+				got->second(params);
+				return 1;
+			}
+
+			return console_command_hook.invoke<int>();
+		}
+	}
+
+	void add_console(const std::string& name, const callback& cmd)
+	{
+		const auto command = utils::string::to_lower(name);
+		handlers[command] = cmd;
+	}
+
+	class component final : public server_component
+	{
+	public:
+		void post_unpack() override
+		{
+			console_command_hook.create(0x1402FF8C0_g, &console_command_stub);
+		}
+	};
+}
+
+REGISTER_COMPONENT(console_command::component)

src/client/component/console_command.hpp

@@ -0,0 +1,7 @@
+#pragma once
+
+namespace console_command
+{
+	using callback = std::function<void(const command::params& params)>;
+	void add_console(const std::string& name, const callback& cmd);
+}

src/client/component/dedicated.cpp

@@ -9,6 +9,10 @@ namespace dedicated
 {
 	namespace
 	{
+		void sv_con_tell_f_stub(game::client_s* cl_0, game::svscmd_type type, [[maybe_unused]] const char* fmt, [[maybe_unused]] int c, char* text)
+		{
+			game::SV_SendServerCommand(cl_0, type, "%c \"GAME_SERVER\x15: %s\"", 79, text);
+		}
 	}
 
 	struct component final : server_component
@@ -18,6 +22,9 @@ namespace dedicated
 			// Ignore "bad stats"
 			utils::hook::set<uint8_t>(0x14052D523_g, 0xEB);
 			utils::hook::nop(0x14052D4E4_g, 2);
+
+			// Fix tell command for IW4M
+			utils::hook::call(0x14052A8CF_g, sv_con_tell_f_stub);
 		}
 	};
 }

src/client/component/game_log.cpp

@@ -0,0 +1,71 @@
+#include <std_include.hpp>
+#include "loader/component_loader.hpp"
+
+#include "game/game.hpp"
+
+#include <utils/hook.hpp>
+#include <utils/string.hpp>
+#include <utils/io.hpp>
+
+namespace game_log
+{
+	namespace
+	{
+		void g_scr_log_print()
+		{
+			char string[1024]{};
+			std::size_t i_string_len = 0;
+
+			const auto i_num_parms = game::Scr_GetNumParam(game::SCRIPTINSTANCE_SERVER);
+			for (std::uint32_t i = 0; i < i_num_parms; ++i)
+			{
+				const auto* psz_token = game::Scr_GetString(game::SCRIPTINSTANCE_SERVER, i);
+				const auto i_token_len = std::strlen(psz_token);
+
+				i_string_len += i_token_len;
+				if (i_string_len >= sizeof(string))
+				{
+					// Do not overflow the buffer
+					break;
+				}
+
+				strncat_s(string, psz_token, _TRUNCATE);
+			}
+
+			game::G_LogPrintf("%s", string);
+		}
+
+		void g_log_printf_stub(const char* fmt, ...)
+		{
+			char va_buffer[0x400] = { 0 };
+
+			va_list ap;
+			va_start(ap, fmt);
+			vsprintf_s(va_buffer, fmt, ap);
+			va_end(ap);
+
+			const auto* file = "games_mp.log";
+			const auto time = *game::level_time / 1000;
+
+			utils::io::write_file(file, utils::string::va("%3i:%i%i %s",
+				time / 60,
+				time % 60 / 10,
+				time % 60 % 10,
+				va_buffer
+			), true);
+		}
+	}
+
+	class component final : public server_component
+	{
+	public:
+		void post_unpack() override
+		{
+			// Fix format string vulnerability & make it work
+			utils::hook::jump(0x1402D9300_g, g_scr_log_print);
+			utils::hook::jump(0x1402A7BB0_g, g_log_printf_stub);
+		}
+	};
+}
+
+REGISTER_COMPONENT(game_log::component)

src/client/component/network.cpp

@@ -122,6 +122,11 @@ namespace network
 		{
 			return length + (socket_byte_missing() ? 1 : 0);
 		}
+
+		void con_restricted_execute_buf_stub(int local_clientNum, game::ControllerIndex_t controller_index, const char* buffer)
+		{
+			game::Cbuf_ExecuteBuffer(local_clientNum, controller_index, buffer);
+		}
 	}
 
 	void on(const std::string& command, const callback& callback)
@@ -228,6 +233,9 @@ namespace network
 
 			utils::hook::set<uint8_t>(game::select(0x14224E90D, 0x1405315F9), 0xEB); // don't kick clients without dw handle
 
+			// Remove restrictions for rcon commands
+			utils::hook::call(0x140538D5C_g, con_restricted_execute_buf_stub); // SVC_RemoteCommand
+
 			// TODO: Fix that
 			scheduler::once(create_ip_socket, scheduler::main);
 		}

src/client/game/structs.hpp

@@ -870,6 +870,48 @@ namespace game
 		JoinResult joinResult;
 	};
 
+	typedef uint32_t ScrVarCanonicalName_t;
+
+	enum svscmd_type
+	{
+		SV_CMD_CAN_IGNORE_0 = 0x0,
+		SV_CMD_RELIABLE_0 = 0x1,
+	};
+
+	struct client_s
+	{
+	};
+
+	enum scriptInstance_t
+	{
+		SCRIPTINSTANCE_SERVER = 0x0,
+		SCRIPTINSTANCE_CLIENT = 0x1,
+		SCRIPT_INSTANCE_MAX = 0x2,
+	};
+
+	struct gclient_s
+	{
+		char __pad0[0x8C];
+		float velocity[3];
+		char __pad1[59504];
+		char flags;
+	};
+
+	struct EntityState
+	{
+		int number;
+	};
+
+	struct gentity_s
+	{
+		EntityState s;
+		unsigned char __pad0[0x24C];
+		gclient_s* client;
+		unsigned char __pad1[0x2A0];
+	};
+
+	static_assert(sizeof(gentity_s) == 0x4F8);
+
 #ifdef __cplusplus
 }
 #endif

src/client/game/symbols.cpp

@@ -8,4 +8,35 @@ namespace game
 	{
 		return eModes(*reinterpret_cast<uint32_t*>(game::select(0x1568EF7F4, 0x14948DB04)) << 28 >> 28);
 	}
+
+	bool I_islower(int c)
+	{
+		return c >= 'a' && c <= 'z';
+	}
+
+	bool I_isupper(int c)
+	{
+		return c >= 'A' && c <= 'Z';
+	}
+
+	unsigned int Scr_CanonHash(const char* str)
+	{
+#define FNV_OFFSET 0x4B9ACE2F
+#define FNV_PRIME 16777619
+
+		const auto* s = str;
+		const int first_char = I_islower(*s) ? static_cast<unsigned char>(*s) : tolower(static_cast<unsigned char>(*str));
+
+		unsigned int hash = FNV_PRIME * (first_char ^ FNV_OFFSET);
+		while (*s)
+		{
+			int acc = I_islower(*++s)
+				? static_cast<unsigned char>(*s)
+				: std::tolower(static_cast<unsigned char>(*s));
+
+			hash = FNV_PRIME * (acc ^ hash);
+		}
+
+		return hash;
+	}
 }

src/client/game/symbols.hpp

@@ -13,6 +13,10 @@ namespace game
 	                 int numPrivateSlots, const char* mapname, const char* gametype)> CL_ConnectFromLobby
 		{0x14134C570};
 
+	// Game
+	WEAK symbol<void(gentity_s* ent, gentity_s* target, int mode, const char* chatText)> G_Say{0x0, 0x140299170};
+	WEAK symbol<void(const char* fmt, ...)> G_LogPrintf{0x0, 0x1402A7BB0};
+
 	// Com
 	WEAK symbol<void(int channel, unsigned int label, const char* fmt, ...)> Com_Printf{0x1421499C0, 0x140505630};
 	WEAK symbol<void(const char* file, int line, int code, const char* fmt, ...)> Com_Error_{0x1420F8BD0};
@@ -22,9 +26,14 @@ namespace game
 	};
 
 	WEAK symbol<void(uint32_t localClientNum, const char* text)> Cbuf_AddText{0x1420EC8B0, 0x1404F75B0};
+	WEAK symbol<void(int localClientNum, ControllerIndex_t controllerIndex, const char* buffer)> Cbuf_ExecuteBuffer{0x0, 0x1404F78D0};
 	WEAK symbol<void(const char* cmdName, xcommand_t function, cmd_function_s* allocedCmd)> Cmd_AddCommandInternal{
 		0x1420ED530, 0x1404F8210
 	};
+	WEAK symbol<void()> Cbuf_AddServerText_f{0x0, 0x1407DB4C0};
+	WEAK symbol<void(const char* cmdName, xcommand_t function, cmd_function_s* allocedCmd)> Cmd_AddServerCommandInternal{
+		0x0, 0x1404F8280
+	};
 	WEAK symbol<void(uint32_t localClientNum, ControllerIndex_t controllerIndex, const char* text,
 	                 bool fromRemoteConsol)> Cmd_ExecuteSingleCommand{
 		0x1420EDC20
@@ -64,6 +73,12 @@ namespace game
 		0x1422C7F60
 	};
 
+	// Scr
+	WEAK symbol<void(scriptInstance_t inst, const char* value)> Scr_AddString{0x0, 0x14016F320};
+	WEAK symbol<const char* (scriptInstance_t inst, unsigned int index)> Scr_GetString{0x0, 0x140171490};
+	WEAK symbol<void(gentity_s* ent, ScrVarCanonicalName_t stringValue, unsigned int paramcount)> Scr_Notify_Canon{0x0, 0x1402F5FF0};
+	WEAK symbol<unsigned int(scriptInstance_t inst)> Scr_GetNumParam{0x0, 0x140171320};
+
 	WEAK symbol<void(uint64_t id, bool cancelAll)> Cinematic_StopPlayback{0x1412BEA70};
 
 	// Rendering
@@ -72,13 +87,18 @@ namespace game
 		0x141CD98D0
 	};
 
-	// Rendering
+	// SV
 	WEAK symbol<void*()> SV_AddTestClient{0x1422499A0, 0x14052E3E0};
+	WEAK symbol<void(client_s* cl_0, svscmd_type type, const char* fmt, ...)> SV_SendServerCommand{0x0, 0x140537F10};
 
 	// Variables
 
 	WEAK symbol<cmd_function_s> cmd_functions{0x15689FF58, 0x14946F860};
-	WEAK symbol<CmdArgs> sv_cmd_args{0x15689CE30};
+	WEAK symbol<CmdArgs> sv_cmd_args{0x0, 0x15689CE30};
+
+	WEAK symbol<gentity_s> g_entities{0x0, 0x1471031B0};
+
+	WEAK symbol<int> level_time{0x0, 0x1474FDC94};
 
 	WEAK symbol<SOCKET> ip_socket{0x157E77818, 0x14A640988};
 
@@ -101,4 +121,9 @@ namespace game
 
 	// Re-implementations
 	eModes Com_SessionMode_GetMode();
+
+	bool I_islower(int c);
+	bool I_isupper(int c);
+
+	unsigned int Scr_CanonHash(const char* str);
 }