diff --git a/.github/workflows/linux-build.yml b/.github/workflows/linux-build.yml
index 33d8f2173a653..67ad32517efeb 100644
--- a/.github/workflows/linux-build.yml
+++ b/.github/workflows/linux-build.yml
@@ -25,6 +25,8 @@ jobs:
launcher: ccache
steps:
- uses: actions/checkout@v5
+ with:
+ submodules: recursive
- name: Set reusable strings
id: strings
shell: bash
@@ -54,7 +56,7 @@ jobs:
CXX: /usr/bin/${{ matrix.cxx }}
run: >
cmake -GNinja -S ${{ github.workspace }} -B ${{ steps.strings.outputs.build-output-dir }}
- -DWITH_WARNINGS=1 -DWITH_WARNINGS_AS_ERRORS=1 -DWITH_COREDEBUG=0 -DUSE_COREPCH=${{ matrix.pch }} -DUSE_SCRIPTPCH=${{ matrix.pch }} -DTOOLS=1 -DSCRIPTS=dynamic -DSERVERS=1 -DNOJEM=0
+ -DWITH_WARNINGS=1 -DWITH_WARNINGS_AS_ERRORS=1 -DWITH_COREDEBUG=0 -DUSE_COREPCH=${{ matrix.pch }} -DUSE_SCRIPTPCH=${{ matrix.pch }} -DTOOLS=1 -DSCRIPTS=dynamic -DSERVERS=1 -DNOJEM=0 -DWITH_CAIO_EXAMPLES=1
-DCMAKE_C_FLAGS_DEBUG="-DNDEBUG -g0" -DCMAKE_CXX_FLAGS_DEBUG="-DNDEBUG -g0"
-DCMAKE_INSTALL_PREFIX=check_install -DBUILD_TESTING=1
- name: Build
diff --git a/.github/workflows/macos-arm-build.yml b/.github/workflows/macos-arm-build.yml
index 63b3f18dd1f26..0dfcbde9df9cf 100644
--- a/.github/workflows/macos-arm-build.yml
+++ b/.github/workflows/macos-arm-build.yml
@@ -10,6 +10,8 @@ jobs:
steps:
- uses: actions/checkout@v5
+ with:
+ submodules: recursive
- name: Set reusable strings
id: strings
@@ -42,7 +44,7 @@ jobs:
CMAKE_BUILD_TYPE: Debug
run: >
cmake -GNinja -B ${{ steps.strings.outputs.build-output-dir }}
- -DWITH_WARNINGS=1 -DWITH_WARNINGS_AS_ERRORS=1 -DWITH_COREDEBUG=0 -DUSE_COREPCH=1 -DUSE_SCRIPTPCH=1 -DTOOLS=1 -DSCRIPTS=static -DSERVERS=1 -DBUILD_TESTING=1
+ -DWITH_WARNINGS=1 -DWITH_WARNINGS_AS_ERRORS=1 -DWITH_COREDEBUG=0 -DUSE_COREPCH=1 -DUSE_SCRIPTPCH=1 -DTOOLS=1 -DSCRIPTS=static -DSERVERS=1 -DBUILD_TESTING=1 -DWITH_CAIO_EXAMPLES=1
-DCMAKE_C_FLAGS_DEBUG="-DNDEBUG" -DCMAKE_CXX_FLAGS_DEBUG="-DNDEBUG"
-DCMAKE_INSTALL_PREFIX=check_install
-S ${{ github.workspace }}
diff --git a/.github/workflows/win-x64-build.yml b/.github/workflows/win-x64-build.yml
index c0f2675e7e510..6db310c89bf85 100644
--- a/.github/workflows/win-x64-build.yml
+++ b/.github/workflows/win-x64-build.yml
@@ -13,6 +13,8 @@ jobs:
OPENSSL_ROOT_DIR: C:/libs/openssl
steps:
- uses: actions/checkout@v5
+ with:
+ submodules: recursive
- name: Set reusable strings
id: strings
@@ -74,7 +76,7 @@ jobs:
BOOST_ROOT: ${{ steps.install-boost.outputs.BOOST_ROOT }}
run: >
cmake -GNinja -S ${{ github.workspace }} -B ${{ steps.strings.outputs.build-output-dir }}
- -DWITH_WARNINGS_AS_ERRORS=ON -DTOOLS=ON
+ -DWITH_WARNINGS_AS_ERRORS=ON -DTOOLS=ON -DWITH_CAIO_EXAMPLES=ON
- name: Build
run: |
diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000000000..9ab51a8b7e203
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "dep/smallfolk_cpp/smallfolk_cpp"]
+ path = dep/smallfolk_cpp/smallfolk_cpp
+ url = https://github.com/Rochet2/smallfolk_cpp.git
diff --git a/CAIO LICENSE.txt b/CAIO LICENSE.txt
new file mode 100644
index 0000000000000..94a9ed024d385
--- /dev/null
+++ b/CAIO LICENSE.txt
@@ -0,0 +1,674 @@
+ GNU GENERAL PUBLIC LICENSE
+ Version 3, 29 June 2007
+
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+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
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+
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+or that patent license was granted, prior to 28 March 2007.
+
+ Nothing in this License shall be construed as excluding or limiting
+any implied license or other defenses to infringement that may
+otherwise be available to you under applicable patent law.
+
+ 12. No Surrender of Others' Freedom.
+
+ If conditions are imposed on you (whether by court order, agreement or
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+ 13. Use with the GNU Affero General Public License.
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+ 14. Revised Versions of this License.
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+to choose that version for the Program.
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+ Later license versions may give you additional or different
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+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
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+ END OF TERMS AND CONDITIONS
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+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
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+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
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+ Copyright (C)
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see .
+
+Also add information on how to contact you by electronic and paper mail.
+
+ If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
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+ Copyright (C)
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+ This is free software, and you are welcome to redistribute it
+ under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License. Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+ You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+.
+
+ The GNU General Public License does not permit incorporating your program
+into proprietary programs. If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library. If this is what you want to do, use the GNU Lesser General
+Public License instead of this License. But first, please read
+.
diff --git a/CAIO_README.md b/CAIO_README.md
new file mode 100644
index 0000000000000..1b41ddc670600
--- /dev/null
+++ b/CAIO_README.md
@@ -0,0 +1,3 @@
+CAIO documentation lives in [doc/CAIO_README.md](doc/CAIO_README.md).
+
+Also see [doc/CAIO_MESSAGE_FORMAT.md](doc/CAIO_MESSAGE_FORMAT.md) and [doc/CAIO_SCRIPT_EXAMPLE.md](doc/CAIO_SCRIPT_EXAMPLE.md).
diff --git a/cmake/macros/ConfigureScripts.cmake b/cmake/macros/ConfigureScripts.cmake
index 7ad99f95ba72a..de6304b8d8ac4 100644
--- a/cmake/macros/ConfigureScripts.cmake
+++ b/cmake/macros/ConfigureScripts.cmake
@@ -36,7 +36,7 @@ endfunction()
# Stores the project name of the given module in the variable
function(GetProjectNameOfScriptModule module variable)
- string(TOLOWER "scripts_${SCRIPT_MODULE}" GENERATED_NAME)
+ string(TOLOWER "scripts_${module}" GENERATED_NAME)
set(${variable} "${GENERATED_NAME}" PARENT_SCOPE)
endfunction()
diff --git a/cmake/options.cmake b/cmake/options.cmake
index e939528584f0a..005d74770001c 100644
--- a/cmake/options.cmake
+++ b/cmake/options.cmake
@@ -33,6 +33,7 @@ foreach(SCRIPT_MODULE ${SCRIPT_MODULE_LIST})
set_property(CACHE ${SCRIPT_MODULE_VARIABLE} PROPERTY STRINGS default disabled static dynamic)
endforeach()
+option(WITH_CAIO_EXAMPLES "Build optional CAIO ExampleWindow test script" 0)
option(TOOLS "Build map/vmap/mmap extraction/assembler tools" 1)
option(USE_SCRIPTPCH "Use precompiled headers when compiling scripts" 1)
option(USE_COREPCH "Use precompiled headers when compiling servers" 1)
diff --git a/cmake/showoptions.cmake b/cmake/showoptions.cmake
index 242b2500cdefc..9206f803f0d79 100644
--- a/cmake/showoptions.cmake
+++ b/cmake/showoptions.cmake
@@ -34,6 +34,12 @@ else()
message("* Build with scripts : No")
endif()
+if(WITH_CAIO_EXAMPLES)
+ message("* CAIO ExampleWindow : Yes")
+else()
+ message("* CAIO ExampleWindow : No (default)")
+endif()
+
if(TOOLS)
message("* Build map/vmap tools : Yes (default)")
else()
diff --git a/dep/CMakeLists.txt b/dep/CMakeLists.txt
index 869f4ef298165..4d0d859c7783e 100644
--- a/dep/CMakeLists.txt
+++ b/dep/CMakeLists.txt
@@ -31,6 +31,11 @@ if(SERVERS)
add_subdirectory(mysql)
add_subdirectory(readline)
add_subdirectory(gsoap)
+ set(SMALLFOLK_BUILD_TESTS OFF CACHE BOOL "" FORCE)
+ set(SMALLFOLK_BUILD_BENCHMARK OFF CACHE BOOL "" FORCE)
+ set(SMALLFOLK_BUILD_EXAMPLES OFF CACHE BOOL "" FORCE)
+ set(SMALLFOLK_ENABLE_CLANG_TIDY OFF CACHE BOOL "" FORCE)
+ add_subdirectory(smallfolk_cpp/smallfolk_cpp)
endif()
if(SERVERS AND BUILD_EFSW)
diff --git a/dep/smallfolk_cpp/smallfolk_cpp b/dep/smallfolk_cpp/smallfolk_cpp
new file mode 160000
index 0000000000000..750580db99847
--- /dev/null
+++ b/dep/smallfolk_cpp/smallfolk_cpp
@@ -0,0 +1 @@
+Subproject commit 750580db99847f6043fdf952d572f0c40acc3e55
diff --git a/doc/CAIO_MESSAGE_FORMAT.md b/doc/CAIO_MESSAGE_FORMAT.md
new file mode 100644
index 0000000000000..5453f5251968c
--- /dev/null
+++ b/doc/CAIO_MESSAGE_FORMAT.md
@@ -0,0 +1,39 @@
+# CAIO / AIO message format
+
+This matches [Rochet2 AIO](https://github.com/Rochet2/AIO) block layout as used by CAIO and `smallfolk_cpp`.
+
+## Serialized message
+
+One whisper addon payload is a **smallfolk** dump of an array of blocks:
+
+```lua
+{
+ { n, scriptKey, handlerKey, arg1, arg2, ... },
+ { n, scriptKey2, handlerKey2, ... },
+}
+```
+
+- `n` — number of arguments **including** `handlerKey` (CAIO sets `block[1]` accordingly). Server rejects `n > 15` (stock `AIO_SERVER` limit).
+- `scriptKey` — block name (`AIO`, `AIOExample`, …); must be registered with `AIO.RegisterEvent` on the client or `AIOScript` on the server.
+- Arguments from index 4 onward are handler parameters (`unpack(data, 3, n+2)` on the Lua side).
+
+Use `AIOMsg` / `AIO.Msg():Add(...)` rather than building tables manually.
+
+## Wire encoding (3.3.5)
+
+On TrinityCore, AIO uses **`CHAT_MSG_WHISPER` with `LANG_ADDON`** (not a separate addon channel packet). The client still sees **`CHAT_MSG_ADDON`**; this matches stock `AIO.lua` server behaviour.
+
+- Prefix: `S` + `AIO.Prefix` + `\t` (server→client) or `C` + prefix + `\t` (client→server).
+- Short message: two bytes `\1\1` then the smallfolk string.
+- Long message: 2-byte message id + 2-byte part count + 2-byte part id + chunk.
+- Each whisper packet must fit in **255 bytes** total (WoW addon limit). Configure `AIO.MsgMaxLen` (default **255**). Long payloads split using `chunkLen = MsgMaxLen - headerBytes` where `headerBytes = 1 + len(prefix) + 1 + 6`.
+
+## Version handshake
+
+On init, client sends `AIO` / `Init` with protocol version **1.75**. Server defines `AIO_VERSION` / `AIO_VERSION_STRING` in `src/server/game/AIO/AIO.h`. Both sides currently require an exact numeric match (stock AIO `~=` / CAIO `|a-b| > 0.01`). Messaging fixes from [AIO PR #27](https://github.com/Rochet2/AIO/pull/27) do **not** change this wire version.
+
+Future work may introduce semver (`MAJOR.MINOR.PATCH`) with handshake on major+minor only; that is deferred until the AIO client supports it.
+
+## Compression / obfuscation
+
+Not implemented on this branch. Addon files are sent with an `U` (uncompressed) prefix only.
diff --git a/doc/CAIO_README.md b/doc/CAIO_README.md
new file mode 100644
index 0000000000000..31f881a1ea8af
--- /dev/null
+++ b/doc/CAIO_README.md
@@ -0,0 +1,195 @@
+## Introduction
+
+CAIO is a server-client communication system for WoW AddOns. It is an extension of [AIO](https://github.com/Rochet2/AIO) to support C++ server side handling.
+AIO is designed for sending lua addons and data between players and server.
+
+Currently CAIO only supports TrinityCore 3.3.5. This work lives on [Rochet2/TrinityCore](https://github.com/Rochet2/TrinityCore) (branch `c_aio_new` / PR #183).
+
+## License
+
++ TrinityCore base: GPLv2 text in `COPYING`; existing TrinityCore sources keep their per-file headers (**GPLv2 or later**).
++ CAIO: GPLv3 text in `CAIO LICENSE.txt`.
++ CAIO-owned units (e.g. `src/server/game/AIO/*`, `AIOMsg.*`, `AIOScript.*`, `cs_caio.cpp`, `src/server/scripts/AIO/*`, and CAIO tests) intentionally have **no** per-file license banner — same as original SaiFi CAIO; their license is via `CAIO LICENSE.txt`.
++ Because TrinityCore headers permit “or later”, a combined TrinityCore+CAIO tree may be distributed under **GPLv3**.
+
+## Supported AIO version
+
+AIO protocol version **1.75** — must match `AIO_VERSION` in your server and client `AIO.lua` files (see [Rochet2/AIO](https://github.com/Rochet2/AIO)). Init still uses exact float equality (`|a-b| > 0.01`), so stock 1.75 clients keep working.
+
+CAIO mirrors messaging hardening from [AIO PR #27](https://github.com/Rochet2/AIO/pull/27) (cache TTL in ms, hole-safe reassembly, buffered-byte accounting, framing helpers/tests) **without** bumping the Init version — those fixes are wire-compatible.
+
+**Future (not in this branch):** semantic versioning (`MAJOR.MINOR.PATCH`) with Init matching major+minor only so patch releases can diverge. That should land in the AIO client first, then CAIO.
+
+## Security notes (untrusted client → server)
+
++ Treat all client→server AIO payloads as untrusted: validate block `n`, script/handler keys, sizes, and part metadata before dispatch.
++ Production toggles: `AIO.MsgRateLimitMs`, `AIO.MaxIncomingMessageSize`, `AIO.MaxBlocks`, `AIO.MaxParts`, `AIO.MaxBufferSize`, `AIO.MaxParseFailures`, `AIO.MsgCacheTime` / `AIO.MsgCacheDelay`.
++ Addon file paths are restricted via `IsSafeAddonRelativePath` (no `..`, absolute paths, or shell metacharacters).
+
+## PR #27 parity (already in CAIO vs newly covered)
+
++ Already present: ms message-cache TTL/sweep, hole-safe long-message completion, per-message `BufferedBytes` caps, middle-`nil` `AIOMsg` packing, path safety, rate/parse abuse gates.
++ This work: extracted framing encode/split + reassembler (unit-tested), basename/expiry helpers, `AIO.ForceReloadOnStartup`, expanded Catch2 coverage mirroring AIO’s framing/reassembler/util tests.
+
+## Install
+
++ Clone this repository/branch or merge with your own TrinityCore 3.3.5 branch
++ `git submodule update --init --recursive` (required for `dep/smallfolk_cpp/smallfolk_cpp` — [smallfolk_cpp](https://github.com/Rochet2/smallfolk_cpp); pin the submodule commit in production, currently `750580db99847f6043fdf952d572f0c40acc3e55`)
++ Build/Install TrinityCore
++ [Install(Add) (C)AIO scripts](#api-reference) — see also `doc/CAIO_SCRIPT_EXAMPLE.md` and `doc/CAIO_MESSAGE_FORMAT.md`
++ Run SQL files from `TrinityCore_Installation_Dir/sql/CAIO` (`Auth.sql` on auth DB, `World.sql` on world DB)
++ Copy `AIO_Client` from your AIO tree to `WoW_Installation_Dir/Interface/AddOns/AIO_Client` (use the same AIO repo/commit as the server expects)
++ Copy server-side client addon sources into `TrinityCore_Installation_Dir/lua_client_scripts` (one folder per addon, e.g. `lua_client_scripts/ExampleWindow/ExampleWindow.lua`)
++ Set `AIO.MsgMaxLen` to **255** in `worldserver.conf` (WoW addon whisper limit; matches client `AIO.lua` when `AIO_SERVER` is false)
++ Ensure `Logger.AIO` is enabled in the logging config if you want AIO diagnostics
++ Optional: build with `-DWITH_CAIO_EXAMPLES=ON` to include the `ExampleWindow` test script (ships `worldserver/lua_client_scripts/ExampleWindow/ExampleWindow.lua` for install; try `/caioexample` in-game)
+
+## Build notes (TrinityCore 3.3.5 + CAIO)
+
++ OpenSSL **3.x** is detected by upstream `cmake/macros/FindOpenSSL.cmake`.
++ Boost **1.86** with MSVC may still fail on very old 3.3.5 code paths; **Boost 1.81** is a safe choice if you hit `std::_snprintf` errors in Boost headers.
++ CI builds use recursive submodules and `-DWITH_CAIO_EXAMPLES=1` (see `.github/workflows/linux-build.yml`).
+
+## Stock AIO server parity (C++ vs `AIO.lua` with `AIO_SERVER = true`)
+
++ **Transport:** `LANG_ADDON` whispers with `S`/`C` prefix are required on 3.3.5; the client receives them as `CHAT_MSG_ADDON`.
++ **Init hooks:** C++ `AddInitArgs` appends extra handler blocks to the init reply. `AddOnInit` on `AIOScript` mutates the full outgoing init table before send (**done** — stock `AIO.AddOnInit` parity).
++ **Pre-init gating:** Stock server does **not** queue pre-init blocks (`AIO_INITED` is client-only). CAIO matches that.
++ **Block arg limit:** Server rejects blocks with invalid `n` (non-integer / out of range / `n > 15`).
++ **Message cache:** `AIO.MsgCacheTime` / `AIO.MsgCacheDelay` match `AIO_MSG_CACHE_TIME` / `AIO_MSG_CACHE_DELAY` in `AIO.lua`.
+
+## Todo (out of scope for v1 unless noted)
+
++ Implement obfuscation (optional, deferred)
++ Implement compression (optional, deferred)
++ Add individual RBAC permissions per `.caio` subcommand (optional; all subcommands use `RBAC_PERM_COMMAND_CAIO` today)
+
+## API reference
+
+### Creating a CAIO script
+
+```cpp
+class ExampleCAIOScript : public AIOScript
+{
+ public:
+ ExampleCAIOScript()
+ : AIOScript("ExampleScriptName")
+ {
+ using namespace std::placeholders;
+
+ // Loads addon files; path from AIO.ClientScriptPath in worldserver.conf
+ AddAddon("ExampleAddon", "example_addon.lua");
+ AddAddon("AnotherAddon", "example_addon.lua", 192);
+
+ AddHandler("Print", std::bind(&ExampleCAIOScript::HandlePrint, this, _1, _2));
+ AddInitArgs("ExampleScriptName", "Init", std::bind(&ExampleCAIOScript::InitArg, this, _1));
+ }
+
+ void HandlePrint(Player* sender, LuaVal const& args)
+ {
+ LuaVal inputVal = args.get(4);
+ if (!inputVal.isstring())
+ return;
+ }
+
+ private:
+ std::string storedString;
+};
+```
+
+### smallfolk_cpp LuaVal reference
+
+https://github.com/Rochet2/smallfolk_cpp (v2.x on `master` — linked as CMake target `smallfolk_cpp::smallfolk`, include `smallfolk.h`)
+
+Use `LuaVal::nil` (not `LuaVal::nil()`) for default optional arguments. Type tag accessor is `typetag()`.
+
+### CAIO reference and functions
+
+**AIOScript.h** (included from `ScriptMgr.h`)
+
+```cpp
+class AIOScript : public ScriptObject
+{
+ protected:
+ AIOScript(LuaVal const& scriptKey);
+ void AddHandler(LuaVal const& handlerKey, HandlerFunc function);
+ void AddInitArgs(LuaVal const& scriptKey, LuaVal const& handlerKey, ...);
+ void AddOnInit(InitMessageFunc func); // mutates full init reply (AIO.AddOnInit parity)
+ bool AddAddon(std::string const& addonName, std::string const& addonFile, uint32 permission = AIO_DEFAULT_ADDON_PERMISSION);
+};
+```
+
+**AIOMsg.h**
+
+```cpp
+class AIOMsg
+{
+ public:
+ AIOMsg();
+ AIOMsg(LuaVal const& scriptKey, LuaVal const& handlerKey,
+ LuaVal const& a1 = LuaVal::nil, LuaVal const& a2 = LuaVal::nil, LuaVal const& a3 = LuaVal::nil,
+ LuaVal const& a4 = LuaVal::nil, LuaVal const& a5 = LuaVal::nil, LuaVal const& a6 = LuaVal::nil);
+ AIOMsg& Add(LuaVal const& scriptKey, LuaVal const& handlerKey,
+ LuaVal const& a1 = LuaVal::nil, LuaVal const& a2 = LuaVal::nil, LuaVal const& a3 = LuaVal::nil,
+ LuaVal const& a4 = LuaVal::nil, LuaVal const& a5 = LuaVal::nil, LuaVal const& a6 = LuaVal::nil);
+ AIOMsg& AppendLast(LuaVal const& a1 = LuaVal::nil, LuaVal const& a2 = LuaVal::nil, LuaVal const& a3 = LuaVal::nil,
+ LuaVal const& a4 = LuaVal::nil, LuaVal const& a5 = LuaVal::nil, LuaVal const& a6 = LuaVal::nil);
+ std::string dumps() const;
+};
+```
+
+**Player.h** / **PlayerAIO.h**
+
+```cpp
+// Player.h — no LuaVal in the public player API
+void Player::SendSimpleAIOMessage(std::string const& message);
+void Player::ForceReloadAddons();
+void Player::ForceResetAddons();
+
+// PlayerAIO.h — use from CAIO scripts
+namespace Trinity::AIO {
+ void Message(Player* player, AIOMsg& msg);
+ void Handle(Player* player, LuaVal const& scriptKey, LuaVal const& handlerKey, ...);
+ void Handle(Player* player, char const* scriptKey, char const* handlerKey, ...);
+}
+```
+
+**World.h**
+
+```cpp
+struct AIOAddon { /* name, file, permission */ };
+
+std::string GetAIOPrefix() const;
+std::string GetAIOClientScriptPath() const;
+void ForceReloadPlayerAddons(uint32 permission = AIO_DEFAULT_ADDON_PERMISSION);
+void ForceResetPlayerAddons(uint32 permission = AIO_DEFAULT_ADDON_PERMISSION);
+void AIOMessageAll(AIOMsg& msg, uint32 permission = AIO_DEFAULT_ADDON_PERMISSION);
+void SendAllSimpleAIOMessage(std::string const& message, uint32 permission = AIO_DEFAULT_ADDON_PERMISSION);
+bool ReloadAddons();
+bool AddAddon(AIOAddon const& addon);
+bool RemoveAddon(std::string const& addonName, uint32* permission = nullptr);
+```
+
+## CAIO game commands
+
++ `.caio version`
++ `.caio addaddon $addonName "$addonFile" [$permission]`
++ `.caio removeaddon $addonName`
++ `.caio reloadaddons`
++ `.caio forcereload $playerName`
++ `.caio forcereset $playerName`
++ `.caio forcereloadall [$permission]`
++ `.caio forceresetall [$permission]`
++ `.caio send $playerName "Message"`
++ `.caio sendall "Message" [$permission]`
+
+`$permission` is an **exact** RBAC permission id (`HasPermission`), not “permission and above”. Default player permission is typically `195` when omitted.
+
+## Reporting issues and submitting fixes
+
+Issues and pull requests: [Rochet2/TrinityCore](https://github.com/Rochet2/TrinityCore).
+
+## Authors, Contributors & Thanks
+
++ Saif — CAIO
++ Rochet2 — [AIO](https://github.com/Rochet2/AIO), [smallfolk_cpp](https://github.com/Rochet2/smallfolk_cpp)
diff --git a/doc/CAIO_SCRIPT_EXAMPLE.md b/doc/CAIO_SCRIPT_EXAMPLE.md
new file mode 100644
index 0000000000000..fde77911f2686
--- /dev/null
+++ b/doc/CAIO_SCRIPT_EXAMPLE.md
@@ -0,0 +1,75 @@
+# CAIO script example
+
+Inherit `AIOScript` to register server-side AIO handlers. See [smallfolk_cpp](https://github.com/Rochet2/smallfolk_cpp) for `LuaVal` usage.
+
+```cpp
+class ExampleAIOScript : public AIOScript
+{
+ public:
+ ExampleAIOScript()
+ : AIOScript("ExampleScriptName")
+ {
+ using namespace std::placeholders;
+
+ // Loads addon files; path from AIO.ClientScriptPath in worldserver.conf
+ AddAddon("ExampleAddon", "example_addon.lua");
+
+ // Optional permission-gated addon (RBAC id)
+ AddAddon("AnotherAddon", "example_addon.lua", 192);
+
+ AddHandler("Print", std::bind(&ExampleAIOScript::HandlePrint, this, _1, _2));
+ AddHandler("Save", std::bind(&ExampleAIOScript::HandleSave, this, _1, _2));
+
+ AddInitArgs("ExampleScriptName", "Init", std::bind(&ExampleAIOScript::InitArg, this, _1), std::bind(&ExampleAIOScript::InitArg, this, _1));
+ AddInitArgs("ExampleScriptName", "Init", std::bind(&ExampleAIOScript::InitArg2, this, _1));
+ AddInitArgs("AnotherScript", "InitB");
+ }
+
+ void HandlePrint(Player* sender, LuaVal const& args)
+ {
+ LuaVal inputVal = args.get(4);
+ LuaVal sliderVal = args.get(5);
+
+ if (!inputVal.isstring() || !sliderVal.isnumber())
+ return;
+
+ sender->GetSession()->SendNotification("HandlePrint -> Stored String: %s, Input: %s, Slider Value: %f",
+ storedString.c_str(), inputVal.str().c_str(), sliderVal.num());
+ }
+
+ void HandleSave(Player* sender, LuaVal const& args)
+ {
+ LuaVal saveVal = args.get(4);
+
+ if (!saveVal.isstring())
+ return;
+
+ storedString = saveVal.str();
+ sender->GetSession()->SendNotification("Saved");
+ }
+
+ LuaVal InitArg(Player* /*sender*/)
+ {
+ LuaVal arg(TTABLE);
+ arg.set("key", 12.3);
+ arg["key2"] = false;
+ return arg;
+ }
+
+ LuaVal InitArg2(Player* /*sender*/)
+ {
+ return LuaVal("LuaVal will implicitly create a string LuaVal for this arg");
+ }
+
+ private:
+ std::string storedString;
+};
+```
+
+Register the script in a loader (see `src/server/scripts/AIO/aio_script_loader.cpp` and `WITH_CAIO_EXAMPLES`).
+
+To send messages to the client from C++, use `Trinity::AIO::Handle` / `Trinity::AIO::Message` from `PlayerAIO.h` (keeps `Player.h` free of `LuaVal`).
+
+For full init-message rewriting (stock `AIO.AddOnInit`), call `AddOnInit` with a callback that receives `(Player*, LuaVal& initMessage)` after the init blocks are assembled and before send.
+
+Handler `args` is always a table; handler parameters start at index **4**. Always check value types before use.
diff --git a/sql/CAIO/Auth.sql b/sql/CAIO/Auth.sql
new file mode 100644
index 0000000000000..8cf9785f911db
--- /dev/null
+++ b/sql/CAIO/Auth.sql
@@ -0,0 +1,2 @@
+REPLACE INTO `rbac_permissions` (`id`, `name`) VALUES (5000, 'Command: caio');
+REPLACE INTO `rbac_linked_permissions` (`id`, `linkedId`) VALUES (192, 5000);
\ No newline at end of file
diff --git a/sql/CAIO/World.sql b/sql/CAIO/World.sql
new file mode 100644
index 0000000000000..2db2f640c333c
--- /dev/null
+++ b/sql/CAIO/World.sql
@@ -0,0 +1,24 @@
+-- CAIO command result strings
+REPLACE INTO `trinity_string` (`entry`, `content_default`, `content_loc1`, `content_loc2`, `content_loc3`, `content_loc4`, `content_loc5`, `content_loc6`, `content_loc7`, `content_loc8`)
+VALUES (60002, 'Force reload message sent to %s', NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);
+REPLACE INTO `trinity_string` (`entry`, `content_default`, `content_loc1`, `content_loc2`, `content_loc3`, `content_loc4`, `content_loc5`, `content_loc6`, `content_loc7`, `content_loc8`)
+VALUES (60003, 'Force reset message sent to %s', NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);
+REPLACE INTO `trinity_string` (`entry`, `content_default`, `content_loc1`, `content_loc2`, `content_loc3`, `content_loc4`, `content_loc5`, `content_loc6`, `content_loc7`, `content_loc8`)
+VALUES (60004, 'There was a problem reloading client addons. Force reload was not sent.', NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);
+REPLACE INTO `trinity_string` (`entry`, `content_default`, `content_loc1`, `content_loc2`, `content_loc3`, `content_loc4`, `content_loc5`, `content_loc6`, `content_loc7`, `content_loc8`)
+VALUES (60005, 'Addon with name \'%s\' already exists or file not found.', NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);
+REPLACE INTO `trinity_string` (`entry`, `content_default`, `content_loc1`, `content_loc2`, `content_loc3`, `content_loc4`, `content_loc5`, `content_loc6`, `content_loc7`, `content_loc8`)
+VALUES (60006, 'Addon with name \'%s\' not found.', NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);
+
+-- CAIO commands
+REPLACE INTO `command` (`name`, `permission`, `help`) VALUES ('caio', 5000, 'Syntax: .caio $subcommand\nType .caio to see the list of possible subcommands or .help caio $subcommand to see info on subcommands');
+REPLACE INTO `command` (`name`, `permission`, `help`) VALUES ('caio version', 5000, 'Syntax: .caio version\nShows the AIO version');
+REPLACE INTO `command` (`name`, `permission`, `help`) VALUES ('caio addaddon', 5000, 'Syntax: .caio addaddon $addonName "$addonFile" [$permission]\nAdds an addon to the addon list (default permission if omitted) and force-reloads players that have that RBAC permission');
+REPLACE INTO `command` (`name`, `permission`, `help`) VALUES ('caio removeaddon', 5000, 'Syntax: .caio removeaddon $addonName\nRemoves an addon from addon list and force reloads all affected player addons');
+REPLACE INTO `command` (`name`, `permission`, `help`) VALUES ('caio reloadaddons', 5000, 'Syntax: .caio reloadaddons\nReloads all client addons loaded on the server and forces reload on all players.');
+REPLACE INTO `command` (`name`, `permission`, `help`) VALUES ('caio forcereload', 5000, 'Syntax: .caio forcereload $playerName\nForce reloads player\'s addons. Player addons are synced with server.');
+REPLACE INTO `command` (`name`, `permission`, `help`) VALUES ('caio forcereset', 5000, 'Syntax: .caio forcereset $playerName\nForce resets player\'s addons. Player addons are deleted and downloaded again.');
+REPLACE INTO `command` (`name`, `permission`, `help`) VALUES ('caio forcereloadall', 5000, 'Syntax: .caio forcereloadall [$permission]\nForce reloads players that have the given RBAC permission (exact match). Affected players\' addons are synced with the server.');
+REPLACE INTO `command` (`name`, `permission`, `help`) VALUES ('caio forceresetall', 5000, 'Syntax: .caio forceresetall [$permission]\nForce resets players that have the given RBAC permission (exact match). Affected players\' addons are deleted and downloaded again.');
+REPLACE INTO `command` (`name`, `permission`, `help`) VALUES ('caio send', 5000, 'Syntax: .caio send $playerName "Message"\nSends an addon message to player');
+REPLACE INTO `command` (`name`, `permission`, `help`) VALUES ('caio sendall', 5000, 'Syntax: .caio sendall "Message" [$permission]\nSends an addon message to all players that have the given RBAC permission (exact match)');
diff --git a/src/common/Logging/Log.cpp b/src/common/Logging/Log.cpp
index 304cee0fbfa74..1cd98cc057755 100644
--- a/src/common/Logging/Log.cpp
+++ b/src/common/Logging/Log.cpp
@@ -224,6 +224,11 @@ void Log::OutCommandImpl(uint32 account, Trinity::FormatStringView messageFormat
write(std::make_unique(LOG_LEVEL_INFO, "commands.gm", Trinity::StringVFormat(messageFormat, messageFormatArgs), Trinity::ToString(account)));
}
+void Log::OutAIOMessageImpl(uint32 account, LogLevel level, Trinity::FormatStringView messageFormat, Trinity::FormatArgs messageFormatArgs)
+{
+ write(std::make_unique(level, "AIO", Trinity::StringVFormat(messageFormat, messageFormatArgs), account ? Trinity::ToString(account) : "World"));
+}
+
void Log::write(std::unique_ptr msg) const
{
Logger const* logger = GetLoggerByType(msg->type);
diff --git a/src/common/Logging/Log.h b/src/common/Logging/Log.h
index 33a4d6c5731e9..d6ee52f671186 100644
--- a/src/common/Logging/Log.h
+++ b/src/common/Logging/Log.h
@@ -86,6 +86,15 @@ class TC_COMMON_API Log
this->OutCommandImpl(account, fmt, Trinity::MakeFormatArgs(args...));
}
+ template
+ void outAIOMessage(uint32 account, LogLevel level, Trinity::FormatString fmt, Args&&... args)
+ {
+ if (!ShouldLog("AIO", level))
+ return;
+
+ OutAIOMessageImpl(account, level, fmt, Trinity::MakeFormatArgs(args...));
+ }
+
void OutCharDump(char const* str, uint32 account_id, uint64 guid, char const* name);
void SetRealmId(uint32 id);
@@ -113,6 +122,7 @@ class TC_COMMON_API Log
void RegisterAppender(uint8 index, AppenderCreatorFn appenderCreateFn);
void OutMessageImpl(std::string_view filter, LogLevel level, Trinity::FormatStringView messageFormat, Trinity::FormatArgs messageFormatArgs);
void OutCommandImpl(uint32 account, Trinity::FormatStringView messageFormat, Trinity::FormatArgs messageFormatArgs);
+ void OutAIOMessageImpl(uint32 account, LogLevel level, Trinity::FormatStringView messageFormat, Trinity::FormatArgs messageFormatArgs);
std::unordered_map appenderFactory;
std::unordered_map> appenders;
diff --git a/src/server/game/AIO/AIO.h b/src/server/game/AIO/AIO.h
new file mode 100644
index 0000000000000..3c677ed3a7861
--- /dev/null
+++ b/src/server/game/AIO/AIO.h
@@ -0,0 +1,14 @@
+#ifndef TRINITY_AIO_H
+#define TRINITY_AIO_H
+
+#include "Define.h"
+
+#define AIO_VERSION 1.75
+#define AIO_VERSION_STRING "1.75"
+
+// RBAC permission id used when distributing addons/messages to players (see sql/CAIO/Auth.sql)
+constexpr uint32 AIO_DEFAULT_ADDON_PERMISSION = 195;
+// WoW addon whisper payload limit (matches client AIO.lua when AIO_SERVER is false)
+constexpr uint32 AIO_MAX_WHISPER_LENGTH = 255;
+
+#endif
diff --git a/src/server/game/AIO/AIOCodec.cpp b/src/server/game/AIO/AIOCodec.cpp
new file mode 100644
index 0000000000000..70679d35a2361
--- /dev/null
+++ b/src/server/game/AIO/AIOCodec.cpp
@@ -0,0 +1,83 @@
+#include "AIOCodec.h"
+
+namespace Trinity::AIO::Codec
+{
+std::vector SplitPayload(std::string const& payload, uint32 maxAfterTab, uint32 messageId)
+{
+ std::vector packets;
+ if (!maxAfterTab)
+ return packets;
+
+ if (2u + payload.size() <= size_t(maxAfterTab))
+ {
+ std::string packet;
+ packet.reserve(2 + payload.size());
+ packet.push_back(SHORT_TAG_HIGH);
+ packet.push_back(SHORT_TAG_LOW);
+ packet += payload;
+ packets.push_back(std::move(packet));
+ return packets;
+ }
+
+ if (maxAfterTab <= 6u)
+ return packets;
+
+ uint32 const chunkLen = maxAfterTab - 6u;
+ uint32 const partsNeeded = uint32((payload.size() + chunkLen - 1) / chunkLen);
+ if (partsNeeded < 2 || partsNeeded > MAX_ENCODED_UINT16 || messageId == 0 || messageId > MAX_ENCODED_UINT16)
+ return packets;
+
+ std::string const messageIdStr = EncodePair(messageId);
+ std::string const partsStr = EncodePair(partsNeeded);
+ if (messageIdStr.empty() || partsStr.empty())
+ return packets;
+
+ size_t cursor = 0;
+ packets.reserve(partsNeeded);
+ for (uint32 partId = 1; partId <= partsNeeded; ++partId)
+ {
+ std::string const partIdStr = EncodePair(partId);
+ if (partIdStr.empty())
+ {
+ packets.clear();
+ return packets;
+ }
+
+ std::string packet;
+ packet.reserve(6 + chunkLen);
+ packet += messageIdStr;
+ packet += partsStr;
+ packet += partIdStr;
+ packet += payload.substr(cursor, chunkLen);
+ packets.push_back(std::move(packet));
+ cursor += chunkLen;
+ }
+
+ return packets;
+}
+
+ParsedFrame ParseAfterTab(std::string_view body)
+{
+ ParsedFrame frame;
+ if (body.size() < 2)
+ return frame;
+
+ uint32 const messageId = DecodePair(body[0], body[1]);
+ if (messageId == 0)
+ {
+ frame.kind = FrameKind::Short;
+ frame.shortPayload = std::string(body.substr(2));
+ return frame;
+ }
+
+ if (body.size() < 6)
+ return frame;
+
+ frame.messageId = messageId;
+ frame.parts = DecodePair(body[2], body[3]);
+ frame.partId = DecodePair(body[4], body[5]);
+ frame.partPayload = std::string(body.substr(6));
+ frame.kind = FrameKind::LongPart;
+ return frame;
+}
+}
diff --git a/src/server/game/AIO/AIOCodec.h b/src/server/game/AIO/AIOCodec.h
new file mode 100644
index 0000000000000..ca0c3ae358c86
--- /dev/null
+++ b/src/server/game/AIO/AIOCodec.h
@@ -0,0 +1,84 @@
+#ifndef TRINITY_AIO_CODEC_H
+#define TRINITY_AIO_CODEC_H
+
+#include "Define.h"
+#include
+#include
+#include
+#include
+#include
+
+namespace Trinity::AIO::Codec
+{
+ // Matches AIO.lua / aio_framing.lua: usable uint16 range without NUL bytes.
+ constexpr uint32 MAX_ENCODED_UINT16 = 64769u; // 2^16 - 767
+
+ inline constexpr char SHORT_TAG_HIGH = '\x01';
+ inline constexpr char SHORT_TAG_LOW = '\x01';
+
+ inline uint32 DecodeByte(char value)
+ {
+ return uint32(static_cast(value) - 1u);
+ }
+
+ inline uint32 DecodePair(char high, char low)
+ {
+ return DecodeByte(high) * 254u + DecodeByte(low);
+ }
+
+ inline bool TryEncodePair(uint32 value, char& high, char& low)
+ {
+ if (value > MAX_ENCODED_UINT16)
+ return false;
+
+ uint32 const hi = value / 254u;
+ high = char(hi + 1u);
+ low = char(value - hi * 254u + 1u);
+ return true;
+ }
+
+ inline std::string EncodePair(uint32 value)
+ {
+ char high = 0;
+ char low = 0;
+ if (!TryEncodePair(value, high, low))
+ return {};
+ std::string out(1, high);
+ out += low;
+ return out;
+ }
+
+ inline bool IsClientPrefix(std::string const& clientWirePrefix, std::string const& msg, size_t& delimPosOut)
+ {
+ delimPosOut = msg.find('\t');
+ if (delimPosOut == std::string::npos)
+ return false;
+
+ return delimPosOut == clientWirePrefix.size() && msg.compare(0, delimPosOut, clientWirePrefix) == 0;
+ }
+
+ // maxAfterTab: max bytes after the wire prefix tab (short tag + payload, or long meta + chunk).
+ TC_GAME_API std::vector SplitPayload(std::string const& payload, uint32 maxAfterTab, uint32 messageId);
+
+ enum class FrameKind : uint8
+ {
+ Invalid,
+ Short,
+ LongPart
+ };
+
+ struct ParsedFrame
+ {
+ FrameKind kind = FrameKind::Invalid;
+ std::string shortPayload;
+ uint32 messageId = 0;
+ uint32 parts = 0;
+ uint32 partId = 0;
+ std::string partPayload;
+ };
+
+ // body = bytes after the client/server prefix tab.
+ TC_GAME_API ParsedFrame ParseAfterTab(std::string_view body);
+}
+
+#endif
diff --git a/src/server/game/AIO/AIOReassembler.cpp b/src/server/game/AIO/AIOReassembler.cpp
new file mode 100644
index 0000000000000..679c733cef71a
--- /dev/null
+++ b/src/server/game/AIO/AIOReassembler.cpp
@@ -0,0 +1,98 @@
+#include "AIOReassembler.h"
+
+namespace Trinity::AIO
+{
+void Reassembler::Clear()
+{
+ _messages.clear();
+}
+
+void Reassembler::Remove(uint32 messageId)
+{
+ _messages.erase(messageId);
+}
+
+uint32 Reassembler::GetBufferedBytes(uint32 messageId) const
+{
+ MessageMap::const_iterator itr = _messages.find(messageId);
+ return itr == _messages.end() ? 0u : itr->second.BufferedBytes;
+}
+
+uint32 Reassembler::Sweep(uint32 sweepDelayMs, uint32 cacheTimeMs)
+{
+ uint32 expired = 0;
+ for (MessageMap::iterator itr = _messages.begin(); itr != _messages.end();)
+ {
+ itr->second.Timer += sweepDelayMs;
+ if (itr->second.Timer >= cacheTimeMs)
+ {
+ _messages.erase(itr++);
+ ++expired;
+ }
+ else
+ ++itr;
+ }
+ return expired;
+}
+
+Reassembler::IngestResult Reassembler::Ingest(uint32 messageId, uint32 parts, uint32 partId, std::string partPayload,
+ uint32 maxConcurrent, uint32 maxBufferBytes)
+{
+ IngestResult result;
+
+ MessageMap::iterator messagePartsItr = _messages.find(messageId);
+ if (messagePartsItr == _messages.end())
+ {
+ if (_messages.size() >= maxConcurrent)
+ {
+ result.error = IngestError::TooManyConcurrent;
+ return result;
+ }
+ messagePartsItr = _messages.insert(std::make_pair(messageId, MessageBuffer())).first;
+ }
+ else if (parts != messagePartsItr->second.Parts)
+ messagePartsItr->second = MessageBuffer();
+
+ if (messagePartsItr->second.Map.find(partId) != messagePartsItr->second.Map.end())
+ {
+ result.error = IngestError::DuplicatePart;
+ return result;
+ }
+
+ messagePartsItr->second.Parts = parts;
+ messagePartsItr->second.Timer = 0;
+ messagePartsItr->second.BufferedBytes += uint32(partPayload.size());
+ if (messagePartsItr->second.BufferedBytes > maxBufferBytes)
+ {
+ result.error = IngestError::BufferExceeded;
+ _messages.erase(messagePartsItr);
+ return result;
+ }
+
+ messagePartsItr->second.Map[partId] = std::move(partPayload);
+
+ bool haveAllParts = messagePartsItr->second.Map.size() >= static_cast(messagePartsItr->second.Parts);
+ if (haveAllParts)
+ {
+ for (uint32 expectedPart = 1; expectedPart <= parts; ++expectedPart)
+ {
+ if (messagePartsItr->second.Map.find(expectedPart) == messagePartsItr->second.Map.end())
+ {
+ haveAllParts = false;
+ break;
+ }
+ }
+ }
+
+ if (!haveAllParts)
+ return result;
+
+ result.payload.reserve(messagePartsItr->second.BufferedBytes);
+ for (uint32 expectedPart = 1; expectedPart <= parts; ++expectedPart)
+ result.payload += messagePartsItr->second.Map.find(expectedPart)->second;
+
+ _messages.erase(messagePartsItr);
+ result.complete = true;
+ return result;
+}
+}
diff --git a/src/server/game/AIO/AIOReassembler.h b/src/server/game/AIO/AIOReassembler.h
new file mode 100644
index 0000000000000..08524e4f312fe
--- /dev/null
+++ b/src/server/game/AIO/AIOReassembler.h
@@ -0,0 +1,55 @@
+#ifndef TRINITY_AIO_REASSEMBLER_H
+#define TRINITY_AIO_REASSEMBLER_H
+
+#include "Define.h"
+#include