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Jarrod Norwell 2024-03-05 22:41:35 +08:00
parent 0e8eb68f0e
commit a3e52484d9
82 changed files with 7050 additions and 0 deletions
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DisableFormat: true
SortIncludes: false

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/build*/
/.vscode/
/thirdparty/
.vs/
.DS_Store

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language: cpp
env:
global:
- CLANG_FORMAT_SUFFIX="-dummy" # don't use formatting on Travis, this is
# needed not to use default 3.5 version
# which is too old.
matrix:
include:
- os: linux
env: MATRIX_EVAL="CC=gcc-5 && CXX=g++-5"
addons:
apt:
sources:
- ubuntu-toolchain-r-test
packages:
- g++-5
- os: linux
env: MATRIX_EVAL="CC=clang-4.0 && CXX=clang++-4.0"
addons:
apt:
sources:
- llvm-toolchain-trusty-4.0
packages:
- clang-4.0
- os: linux
env: MATRIX_EVAL="CC=clang-5.0 && CXX=clang++-5.0"
addons:
apt:
sources:
- llvm-toolchain-trusty-5.0
packages:
- clang-5.0
- os: osx
osx_image: xcode9
# prevent Travis from overwriting our CXX variables
before_install:
- eval "${MATRIX_EVAL}"
- echo $CXX
script:
- mkdir build
- cd build
- cmake -DCLANG_FORMAT_SUFFIX=$CLANG_FORMAT_SUFFIX -DWARNINGS_AS_ERRORS=On --config Release ..
- cmake --build . -- -j2

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cmake_minimum_required (VERSION 3.2.0)
project (DiscordRPC)
include(GNUInstallDirs)
option(BUILD_EXAMPLES "Build example apps" ON)
# format
file(GLOB_RECURSE ALL_SOURCE_FILES
examples/*.cpp examples/*.h examples/*.c
include/*.h
src/*.cpp src/*.h src/*.c
)
# Set CLANG_FORMAT_SUFFIX if you are using custom clang-format, e.g. clang-format-5.0
find_program(CLANG_FORMAT_CMD clang-format${CLANG_FORMAT_SUFFIX})
if (CLANG_FORMAT_CMD)
add_custom_target(
clangformat
COMMAND ${CLANG_FORMAT_CMD}
-i -style=file -fallback-style=none
${ALL_SOURCE_FILES}
DEPENDS
${ALL_SOURCE_FILES}
)
endif(CLANG_FORMAT_CMD)
# thirdparty stuff
execute_process(
COMMAND mkdir ${CMAKE_CURRENT_SOURCE_DIR}/thirdparty
ERROR_QUIET
)
find_file(RAPIDJSONTEST NAMES rapidjson rapidjson-1.1.0 PATHS ${CMAKE_CURRENT_SOURCE_DIR}/thirdparty CMAKE_FIND_ROOT_PATH_BOTH)
if (NOT RAPIDJSONTEST)
message("no rapidjson, download")
set(RJ_TAR_FILE ${CMAKE_CURRENT_SOURCE_DIR}/thirdparty/v1.1.0.tar.gz)
file(DOWNLOAD https://github.com/miloyip/rapidjson/archive/v1.1.0.tar.gz ${RJ_TAR_FILE})
execute_process(
COMMAND ${CMAKE_COMMAND} -E tar xzf ${RJ_TAR_FILE}
WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/thirdparty
)
file(REMOVE ${RJ_TAR_FILE})
endif(NOT RAPIDJSONTEST)
find_file(RAPIDJSON NAMES rapidjson rapidjson-1.1.0 PATHS ${CMAKE_CURRENT_SOURCE_DIR}/thirdparty CMAKE_FIND_ROOT_PATH_BOTH)
add_library(rapidjson STATIC IMPORTED ${RAPIDJSON})
# add subdirs
add_subdirectory(src)
if (BUILD_EXAMPLES)
add_subdirectory(examples/send-presence)
endif(BUILD_EXAMPLES)

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# windows-binaries

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version: '{build}'
install:
- python -m pip install click
build_script:
- mkdir examples\unrealstatus\Plugins\discordrpc\Binaries\ThirdParty\discordrpcLibrary\Win64
- python build.py
artifacts:
- path: builds\install\win32-dynamic
name: win32-dynamic
- path: builds\install\win32-static
name: win32-static
- path: builds\install\win64-dynamic
name: win64-dynamic
- path: builds\install\win64-static
name: win64-static

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#!/usr/bin/env python
import os
import subprocess
import sys
import shutil
import zipfile
from contextlib import contextmanager
import click
def get_platform():
""" a name for the platform """
if sys.platform.startswith('win'):
return 'win'
elif sys.platform == 'darwin':
return 'osx'
elif sys.platform.startswith('linux'):
return 'linux'
raise Exception('Unsupported platform ' + sys.platform)
SCRIPT_PATH = os.path.dirname(os.path.abspath(__file__))
# we use Buildkite which sets this env variable by default
IS_BUILD_MACHINE = os.environ.get('CI', '') == 'true'
PLATFORM = get_platform()
INSTALL_ROOT = os.path.join(SCRIPT_PATH, 'builds', 'install')
def get_signtool():
""" get path to code signing tool """
if PLATFORM == 'win':
sdk_dir = 'c:\\Program Files (x86)\\Windows Kits\\10' # os.environ['WindowsSdkDir']
return os.path.join(sdk_dir, 'bin', 'x86', 'signtool.exe')
elif PLATFORM == 'osx':
return '/usr/bin/codesign'
@contextmanager
def cd(new_dir):
""" Temporarily change current directory """
if new_dir:
old_dir = os.getcwd()
os.chdir(new_dir)
yield
if new_dir:
os.chdir(old_dir)
def mkdir_p(path):
""" mkdir -p """
if not os.path.isdir(path):
click.secho('Making ' + path, fg='yellow')
os.makedirs(path)
@click.group(invoke_without_command=True)
@click.pass_context
@click.option('--clean', is_flag=True)
def cli(ctx, clean):
""" click wrapper for command line stuff """
if ctx.invoked_subcommand is None:
ctx.invoke(libs, clean=clean)
if IS_BUILD_MACHINE:
ctx.invoke(sign)
ctx.invoke(archive)
@cli.command()
@click.pass_context
def unity(ctx):
""" build just dynamic libs for use in unity project """
ctx.invoke(libs, clean=False, static=False, shared=True, skip_formatter=True, just_release=True)
BUILDS = []
click.echo('--- Copying libs and header into unity example')
UNITY_PROJECT_PATH = os.path.join(SCRIPT_PATH, 'examples', 'button-clicker', 'Assets', 'Plugins')
if sys.platform.startswith('win'):
LIBRARY_NAME = 'discord-rpc.dll'
BUILD_64_BASE_PATH = os.path.join(SCRIPT_PATH, 'builds', 'win64-dynamic', 'src', 'Release')
UNITY_64_DLL_PATH = os.path.join(UNITY_PROJECT_PATH, 'x86_64')
BUILDS.append({BUILD_64_BASE_PATH: UNITY_64_DLL_PATH})
BUILD_32_BASE_PATH = os.path.join(SCRIPT_PATH, 'builds', 'win32-dynamic', 'src', 'Release')
UNITY_32_DLL_PATH = os.path.join(UNITY_PROJECT_PATH, 'x86')
BUILDS.append({BUILD_32_BASE_PATH: UNITY_32_DLL_PATH})
elif sys.platform == 'darwin':
LIBRARY_NAME = 'discord-rpc.bundle'
BUILD_BASE_PATH = os.path.join(SCRIPT_PATH, 'builds', 'osx-dynamic', 'src')
UNITY_DLL_PATH = UNITY_PROJECT_PATH
os.rename(
os.path.join(BUILD_BASE_PATH, 'libdiscord-rpc.dylib'), os.path.join(BUILD_BASE_PATH, 'discord-rpc.bundle'))
BUILDS.append({BUILD_BASE_PATH: UNITY_DLL_PATH})
elif sys.platform.startswith('linux'):
LIBRARY_NAME = 'discord-rpc.so'
BUILD_BASE_PATH = os.path.join(SCRIPT_PATH, 'builds', 'linux-dynamic', 'src')
UNITY_DLL_PATH = os.path.join(UNITY_PROJECT_PATH, 'x86')
os.rename(os.path.join(BUILD_BASE_PATH, 'libdiscord-rpc.so'), os.path.join(BUILD_BASE_PATH, 'discord-rpc.so'))
BUILDS.append({BUILD_BASE_PATH: UNITY_DLL_PATH})
else:
raise Exception('Unsupported platform ' + sys.platform)
for build in BUILDS:
for i in build:
mkdir_p(build[i])
shutil.copy(os.path.join(i, LIBRARY_NAME), build[i])
@cli.command()
@click.pass_context
def unreal(ctx):
""" build libs and copy them into the unreal project """
ctx.invoke(libs, clean=False, static=False, shared=True, skip_formatter=True, just_release=True)
BUILDS = []
click.echo('--- Copying libs and header into unreal example')
UNREAL_PROJECT_PATH = os.path.join(SCRIPT_PATH, 'examples', 'unrealstatus', 'Plugins', 'discordrpc')
UNREAL_INCLUDE_PATH = os.path.join(UNREAL_PROJECT_PATH, 'Source', 'ThirdParty', 'DiscordRpcLibrary', 'Include')
mkdir_p(UNREAL_INCLUDE_PATH)
shutil.copy(os.path.join(SCRIPT_PATH, 'include', 'discord_rpc.h'), UNREAL_INCLUDE_PATH)
if sys.platform.startswith('win'):
LIBRARY_NAME = 'discord-rpc.lib'
BUILD_64_BASE_PATH = os.path.join(SCRIPT_PATH, 'builds', 'win64-dynamic', 'src', 'Release')
UNREAL_64_DLL_PATH = os.path.join(UNREAL_PROJECT_PATH, 'Source', 'ThirdParty', 'DiscordRpcLibrary', 'Win64')
BUILDS.append({BUILD_64_BASE_PATH: UNREAL_64_DLL_PATH})
BUILD_32_BASE_PATH = os.path.join(SCRIPT_PATH, 'builds', 'win32-dynamic', 'src', 'Release')
UNREAL_32_DLL_PATH = os.path.join(UNREAL_PROJECT_PATH, 'Source', 'ThirdParty', 'DiscordRpcLibrary', 'Win32')
BUILDS.append({BUILD_32_BASE_PATH: UNREAL_32_DLL_PATH})
elif sys.platform == 'darwin':
LIBRARY_NAME = 'libdiscord-rpc.dylib'
BUILD_BASE_PATH = os.path.join(SCRIPT_PATH, 'builds', 'osx-dynamic', 'src')
UNREAL_DLL_PATH = os.path.join(UNREAL_PROJECT_PATH, 'Source', 'ThirdParty', 'DiscordRpcLibrary', 'Mac')
BUILDS.append({BUILD_BASE_PATH: UNREAL_DLL_PATH})
elif sys.platform.startswith('linux'):
LIBRARY_NAME = 'libdiscord-rpc.so'
BUILD_BASE_PATH = os.path.join(SCRIPT_PATH, 'builds', 'linux-dynamic', 'src')
UNREAL_DLL_PATH = os.path.join(UNREAL_PROJECT_PATH, 'Source', 'ThirdParty', 'DiscordRpcLibrary', 'Linux')
BUILDS.append({BUILD_BASE_PATH: UNREAL_DLL_PATH})
else:
raise Exception('Unsupported platform ' + sys.platform)
for build in BUILDS:
for i in build:
mkdir_p(build[i])
shutil.copy(os.path.join(i, LIBRARY_NAME), build[i])
def build_lib(build_name, generator, options, just_release):
""" Create a dir under builds, run build and install in it """
build_path = os.path.join(SCRIPT_PATH, 'builds', build_name)
install_path = os.path.join(INSTALL_ROOT, build_name)
mkdir_p(build_path)
mkdir_p(install_path)
with cd(build_path):
initial_cmake = ['cmake', SCRIPT_PATH, '-DCMAKE_INSTALL_PREFIX=%s' % os.path.join('..', 'install', build_name)]
if generator:
initial_cmake.extend(['-G', generator])
for key in options:
val = options[key]
if type(val) is bool:
val = 'ON' if val else 'OFF'
initial_cmake.append('-D%s=%s' % (key, val))
click.echo('--- Building ' + build_name)
subprocess.check_call(initial_cmake)
if not just_release:
subprocess.check_call(['cmake', '--build', '.', '--config', 'Debug'])
subprocess.check_call(['cmake', '--build', '.', '--config', 'Release', '--target', 'install'])
@cli.command()
def archive():
""" create zip of install dir """
click.echo('--- Archiving')
archive_file_path = os.path.join(SCRIPT_PATH, 'builds', 'discord-rpc-%s.zip' % get_platform())
archive_file = zipfile.ZipFile(archive_file_path, 'w', zipfile.ZIP_DEFLATED)
archive_src_base_path = INSTALL_ROOT
archive_dst_base_path = 'discord-rpc'
with cd(archive_src_base_path):
for path, _, filenames in os.walk('.'):
for fname in filenames:
fpath = os.path.join(path, fname)
dst_path = os.path.normpath(os.path.join(archive_dst_base_path, fpath))
click.echo('Adding ' + dst_path)
archive_file.write(fpath, dst_path)
@cli.command()
def sign():
""" Do code signing within install directory using our cert """
tool = get_signtool()
signable_extensions = set()
if PLATFORM == 'win':
signable_extensions.add('.dll')
sign_command_base = [
tool,
'sign',
'/n',
'Discord Inc.',
'/a',
'/tr',
'http://timestamp.digicert.com/rfc3161',
'/as',
'/td',
'sha256',
'/fd',
'sha256',
]
elif PLATFORM == 'osx':
signable_extensions.add('.dylib')
sign_command_base = [
tool,
'--keychain',
os.path.expanduser('~/Library/Keychains/login.keychain'),
'-vvvv',
'--deep',
'--force',
'--sign',
'Developer ID Application: Hammer & Chisel Inc. (53Q6R32WPB)',
]
else:
click.secho('Not signing things on this platform yet', fg='red')
return
click.echo('--- Signing')
for path, _, filenames in os.walk(INSTALL_ROOT):
for fname in filenames:
ext = os.path.splitext(fname)[1]
if ext not in signable_extensions:
continue
fpath = os.path.join(path, fname)
click.echo('Sign ' + fpath)
sign_command = sign_command_base + [fpath]
subprocess.check_call(sign_command)
@cli.command()
@click.option('--clean', is_flag=True)
@click.option('--static', is_flag=True)
@click.option('--shared', is_flag=True)
@click.option('--skip_formatter', is_flag=True)
@click.option('--just_release', is_flag=True)
def libs(clean, static, shared, skip_formatter, just_release):
""" Do all the builds for this platform """
if clean:
shutil.rmtree('builds', ignore_errors=True)
mkdir_p('builds')
if not (static or shared):
static = True
shared = True
static_options = {}
dynamic_options = {
'BUILD_SHARED_LIBS': True,
'USE_STATIC_CRT': True,
}
if skip_formatter or IS_BUILD_MACHINE:
static_options['CLANG_FORMAT_SUFFIX'] = 'none'
dynamic_options['CLANG_FORMAT_SUFFIX'] = 'none'
if IS_BUILD_MACHINE:
just_release = True
static_options['WARNINGS_AS_ERRORS'] = True
dynamic_options['WARNINGS_AS_ERRORS'] = True
if PLATFORM == 'win':
generator32 = 'Visual Studio 14 2015'
generator64 = 'Visual Studio 14 2015 Win64'
if static:
build_lib('win32-static', generator32, static_options, just_release)
build_lib('win64-static', generator64, static_options, just_release)
if shared:
build_lib('win32-dynamic', generator32, dynamic_options, just_release)
build_lib('win64-dynamic', generator64, dynamic_options, just_release)
elif PLATFORM == 'osx':
if static:
build_lib('osx-static', None, static_options, just_release)
if shared:
build_lib('osx-dynamic', None, dynamic_options, just_release)
elif PLATFORM == 'linux':
if static:
build_lib('linux-static', None, static_options, just_release)
if shared:
build_lib('linux-dynamic', None, dynamic_options, just_release)
if __name__ == '__main__':
os.chdir(SCRIPT_PATH)
sys.exit(cli())

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# Hard Mode: Roll Your Own Client
Discord's Rich Presence feature is designed as an obfuscated addition to our existing [RPC infrastructure](https://discordapp.com/developers/docs/topics/rpc). The standalone library and header files make it easy for any dev to drop it into their game.
Our library communicates with Discord over the local Discord RPC socket. We've already done the work in connecting properly, handling disconnects and reconnects, and other RPC intracacies, but those who have done this implementation for our private alpha Voice and Chat SDK can simply make use of the new RPC commands and events to implement Rich Presence.
## Hark! A warning!
By committing to an RPC-only integration, you decide to forego the work our library and header file have done for you in the way of error handling, state storage, disconnecting and reconnecting, and other quality of life abstractions. While simply implementing the new RPC command and events will enable Rich Presence for your game, we highly suggest that you do your best to mimic the functionality of the SDK the most that you can. It ensure not only code quality on your part, but also an excellent experience on the part of your players.
## Application Protocol Registration
One thing that cannot be explicitly done over RPC is registering an application protocol for your game. If you choose to do an RPC-only implementation, you will have to register your application protocol yourself in the format of `discord-[your_app_id]://`. You can use `Discord_Register()` as a good(?) example of how to properly register an application protocol for use with Discord. For OSX and Linux it is probably simpler to handle the protocol registration as part of your install/packaging.
## New RPC Command
The new RPC command for Rich Presence is `SET_ACTIVITY`. The fields are similar to what is outlined in the SDK; we've combined similar fields into objects for the sake of less data on the wire.
The one major difference is the `party.size` field. It is an array with a size of two. The first element is the current party size, `partySize` from the main documentation. The second element is the maximum party size, `partyMax` from the main documentation.
Below is a full example of a `SET_ACTIVITY` command. Field restrictions like size are the same as outlined in the main documentation.
```
{
"cmd": "SET_ACTIVITY",
"args": {
"pid": 9999, // Your application's process id - required field
"activity": {
"state": "In a Group",
"details": "Competitive | In a Match",
"timestamps": {
"start": time(nullptr),
"end": time(nullptr) + ((60 * 5) + 23)
},
"assets": {
"large_image": "numbani_map",
"large_text": "Numbani",
"small_image": "pharah_profile",
"small_text": "Pharah"
},
"party": {
"id": GameEngine.GetPartyId(),
"size": [3, 6]
},
"secrets": {
"join": "025ed05c71f639de8bfaa0d679d7c94b2fdce12f",
"spectate": "e7eb30d2ee025ed05c71ea495f770b76454ee4e0",
"match": "4b2fdce12f639de8bfa7e3591b71a0d679d7c93f"
},
"instance": true
}
},
"nonce": "647d814a-4cf8-4fbb-948f-898abd24f55b"
}
```
## New RPC Events
The three new RPC events for Rich Presence power the ability to join and spectate your friends' games.
First is the `ACTIVITY_JOIN` event:
```json
{
"cmd": "DISPATCH",
"data": {
"secret": "025ed05c71f639de8bfaa0d679d7c94b2fdce12f"
},
"evt": "ACTIVITY_JOIN"
}
```
Second is the `ACTIVITY_SPECTATE` event:
```json
{
"cmd": "DISPATCH",
"data": {
"secret": "e7eb30d2ee025ed05c71ea495f770b76454ee4e0"
},
"evt": "ACTIVITY_SPECTATE"
}
```
And third is the `ACTIVITY_JOIN_REQUEST` event:
```json
{
"cmd": "DISPATCH",
"data": {
"user": {
"id": "53908232506183680",
"username": "Mason",
"discriminator": "1337",
"avatar": "a_bab14f271d565501444b2ca3be944b25"
}
},
"evt": "ACTIVITY_JOIN_REQUEST"
}
```
In order to receive these events, you need to [subscribe](https://discordapp.com/developers/docs/topics/rpc#subscribe) to them like so:
```json
{
"nonce": "be9a6de3-31d0-4767-a8e9-4818c5690015",
"evt": "ACTIVITY_JOIN",
"cmd": "SUBSCRIBE"
}
```
```json
{
"nonce": "ae9qdde3-31d0-8989-a8e9-dnakwy174he",
"evt": "ACTIVITY_SPECTATE",
"cmd": "SUBSCRIBE"
}
```
```json
{
"nonce": "5dc0c062-98c6-47a0-8922-bbb52e9d6afa",
"evt": "ACTIVITY_JOIN_REQUEST",
"cmd": "SUBSCRIBE"
}
```
To unsubscribe from these events, resend with the command `UNSUBSCRIBE`
## Responding
A discord user will request access to the game. If the ACTIVITY_JOIN_REQUEST has been subscribed too, the ACTIVITY_JOIN_REQUEST event will be sent to the host's game. Accept it with following model:
```json
{
"nonce": "5dc0c062-98c6-47a0-8922-15aerg126",
"cmd": "SEND_ACTIVITY_JOIN_INVITE",
"args":
{
"user_id": "53908232506183680"
}
}
```
To reject the request, use `CLOSE_ACTIVITY_REQUEST`:
```json
{
"nonce": "5dc0c062-98c6-47a0-8922-dasg256eafg",
"cmd": "CLOSE_ACTIVITY_REQUEST",
"args":
{
"user_id": "53908232506183680"
}
}
```
## Notes
Here are just some quick notes to help with some common troubleshooting problems.
* IPC will echo back every command you send as a response. Use this as a lock-step feature to avoid flooding messages. Can be used to validate messages such as the Presence or Subscribes.
* The pipe expects for frames to be written in a single byte array. You cannot do multiple `stream.Write(opcode);` `stream.Write(length);` as it will break the pipe. Instead create a buffer, write the data to the buffer, then send the entire buffer to the stream.
* Discord can be on any pipe ranging from `discord-ipc-0` to `discord-ipc-9`. It is a good idea to try and connect to each one and keeping the first one you connect too. For multiple clients (eg Discord and Canary), you might want to add a feature to manually select the pipe so you can more easily debug the application.
* All enums are `lower_snake_case`.
* The opcode and length in the header are `Little Endian Unsigned Integers (32bits)`. In some languages, you must convert them as they can be architecture specific.
* [Discord Rich Presence How-To](https://discordapp.com/developers/docs/rich-presence/how-to) contains a lot of the information this document doesn't. For example, it will tell you about the response payload.
* In the documentation, DISCORD_REPLY_IGNORE is just implemented the same as DISCORD_REPLY_NO.
* You can test the Join / Spectate feature by enabling them in your profile and whitelisting a test account. Use Canary to run 2 accounts on the same machine.

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/Library/
/Temp/
/obj/
/Assets/Plugins/
/Assets/Plugins.meta
*.sln
*.csproj
*.userprefs

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using UnityEngine;
[System.Serializable]
public class DiscordJoinEvent : UnityEngine.Events.UnityEvent<string> { }
[System.Serializable]
public class DiscordSpectateEvent : UnityEngine.Events.UnityEvent<string> { }
[System.Serializable]
public class DiscordJoinRequestEvent : UnityEngine.Events.UnityEvent<DiscordRpc.DiscordUser> { }
public class DiscordController : MonoBehaviour
{
public DiscordRpc.RichPresence presence = new DiscordRpc.RichPresence();
public string applicationId;
public string optionalSteamId;
public int clickCounter;
public DiscordRpc.DiscordUser joinRequest;
public UnityEngine.Events.UnityEvent onConnect;
public UnityEngine.Events.UnityEvent onDisconnect;
public UnityEngine.Events.UnityEvent hasResponded;
public DiscordJoinEvent onJoin;
public DiscordJoinEvent onSpectate;
public DiscordJoinRequestEvent onJoinRequest;
DiscordRpc.EventHandlers handlers;
public void OnClick()
{
Debug.Log("Discord: on click!");
clickCounter++;
presence.details = string.Format("Button clicked {0} times", clickCounter);
presence.joinSecret = "aSecret";
presence.partyId = "aPartyId";
presence.partySize = 1;
presence.partyMax = 3;
presence.partyPrivacy = DiscordRpc.PartyPrivacy.Public;
DiscordRpc.UpdatePresence(presence);
}
public void RequestRespondYes()
{
Debug.Log("Discord: responding yes to Ask to Join request");
DiscordRpc.Respond(joinRequest.userId, DiscordRpc.Reply.Yes);
hasResponded.Invoke();
}
public void RequestRespondNo()
{
Debug.Log("Discord: responding no to Ask to Join request");
DiscordRpc.Respond(joinRequest.userId, DiscordRpc.Reply.No);
hasResponded.Invoke();
}
public void ReadyCallback(ref DiscordRpc.DiscordUser connectedUser)
{
Debug.Log(string.Format("Discord: connected to {0}#{1}: {2}", connectedUser.username, connectedUser.discriminator, connectedUser.userId));
onConnect.Invoke();
}
public void DisconnectedCallback(int errorCode, string message)
{
Debug.Log(string.Format("Discord: disconnect {0}: {1}", errorCode, message));
onDisconnect.Invoke();
}
public void ErrorCallback(int errorCode, string message)
{
Debug.Log(string.Format("Discord: error {0}: {1}", errorCode, message));
}
public void JoinCallback(string secret)
{
Debug.Log(string.Format("Discord: join ({0})", secret));
onJoin.Invoke(secret);
}
public void SpectateCallback(string secret)
{
Debug.Log(string.Format("Discord: spectate ({0})", secret));
onSpectate.Invoke(secret);
}
public void RequestCallback(ref DiscordRpc.DiscordUser request)
{
Debug.Log(string.Format("Discord: join request {0}#{1}: {2}", request.username, request.discriminator, request.userId));
joinRequest = request;
onJoinRequest.Invoke(request);
}
void Start()
{
}
void Update()
{
DiscordRpc.RunCallbacks();
}
void OnEnable()
{
Debug.Log("Discord: init");
handlers = new DiscordRpc.EventHandlers();
handlers.readyCallback += ReadyCallback;
handlers.disconnectedCallback += DisconnectedCallback;
handlers.errorCallback += ErrorCallback;
handlers.joinCallback += JoinCallback;
handlers.spectateCallback += SpectateCallback;
handlers.requestCallback += RequestCallback;
DiscordRpc.Initialize(applicationId, ref handlers, true, optionalSteamId);
}
void OnDisable()
{
Debug.Log("Discord: shutdown");
DiscordRpc.Shutdown();
}
void OnDestroy()
{
}
}

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using System;
using System.Collections.Generic;
using System.Runtime.InteropServices;
using System.Text;
using AOT;
public class DiscordRpc
{
[MonoPInvokeCallback(typeof(OnReadyInfo))]
public static void ReadyCallback(ref DiscordUser connectedUser) { Callbacks.readyCallback(ref connectedUser); }
public delegate void OnReadyInfo(ref DiscordUser connectedUser);
[MonoPInvokeCallback(typeof(OnDisconnectedInfo))]
public static void DisconnectedCallback(int errorCode, string message) { Callbacks.disconnectedCallback(errorCode, message); }
public delegate void OnDisconnectedInfo(int errorCode, string message);
[MonoPInvokeCallback(typeof(OnErrorInfo))]
public static void ErrorCallback(int errorCode, string message) { Callbacks.errorCallback(errorCode, message); }
public delegate void OnErrorInfo(int errorCode, string message);
[MonoPInvokeCallback(typeof(OnJoinInfo))]
public static void JoinCallback(string secret) { Callbacks.joinCallback(secret); }
public delegate void OnJoinInfo(string secret);
[MonoPInvokeCallback(typeof(OnSpectateInfo))]
public static void SpectateCallback(string secret) { Callbacks.spectateCallback(secret); }
public delegate void OnSpectateInfo(string secret);
[MonoPInvokeCallback(typeof(OnRequestInfo))]
public static void RequestCallback(ref DiscordUser request) { Callbacks.requestCallback(ref request); }
public delegate void OnRequestInfo(ref DiscordUser request);
static EventHandlers Callbacks { get; set; }
public struct EventHandlers
{
public OnReadyInfo readyCallback;
public OnDisconnectedInfo disconnectedCallback;
public OnErrorInfo errorCallback;
public OnJoinInfo joinCallback;
public OnSpectateInfo spectateCallback;
public OnRequestInfo requestCallback;
}
[Serializable, StructLayout(LayoutKind.Sequential)]
public struct RichPresenceStruct
{
public IntPtr state; /* max 128 bytes */
public IntPtr details; /* max 128 bytes */
public long startTimestamp;
public long endTimestamp;
public IntPtr largeImageKey; /* max 32 bytes */
public IntPtr largeImageText; /* max 128 bytes */
public IntPtr smallImageKey; /* max 32 bytes */
public IntPtr smallImageText; /* max 128 bytes */
public IntPtr partyId; /* max 128 bytes */
public int partySize;
public int partyMax;
public int partyPrivacy;
public IntPtr matchSecret; /* max 128 bytes */
public IntPtr joinSecret; /* max 128 bytes */
public IntPtr spectateSecret; /* max 128 bytes */
public bool instance;
}
[Serializable]
public struct DiscordUser
{
public string userId;
public string username;
public string discriminator;
public string avatar;
}
public enum Reply
{
No = 0,
Yes = 1,
Ignore = 2
}
public enum PartyPrivacy
{
Private = 0,
Public = 1
}
public static void Initialize(string applicationId, ref EventHandlers handlers, bool autoRegister, string optionalSteamId)
{
Callbacks = handlers;
EventHandlers staticEventHandlers = new EventHandlers();
staticEventHandlers.readyCallback += DiscordRpc.ReadyCallback;
staticEventHandlers.disconnectedCallback += DiscordRpc.DisconnectedCallback;
staticEventHandlers.errorCallback += DiscordRpc.ErrorCallback;
staticEventHandlers.joinCallback += DiscordRpc.JoinCallback;
staticEventHandlers.spectateCallback += DiscordRpc.SpectateCallback;
staticEventHandlers.requestCallback += DiscordRpc.RequestCallback;
InitializeInternal(applicationId, ref staticEventHandlers, autoRegister, optionalSteamId);
}
[DllImport("discord-rpc", EntryPoint = "Discord_Initialize", CallingConvention = CallingConvention.Cdecl)]
static extern void InitializeInternal(string applicationId, ref EventHandlers handlers, bool autoRegister, string optionalSteamId);
[DllImport("discord-rpc", EntryPoint = "Discord_Shutdown", CallingConvention = CallingConvention.Cdecl)]
public static extern void Shutdown();
[DllImport("discord-rpc", EntryPoint = "Discord_RunCallbacks", CallingConvention = CallingConvention.Cdecl)]
public static extern void RunCallbacks();
[DllImport("discord-rpc", EntryPoint = "Discord_UpdatePresence", CallingConvention = CallingConvention.Cdecl)]
private static extern void UpdatePresenceNative(ref RichPresenceStruct presence);
[DllImport("discord-rpc", EntryPoint = "Discord_ClearPresence", CallingConvention = CallingConvention.Cdecl)]
public static extern void ClearPresence();
[DllImport("discord-rpc", EntryPoint = "Discord_Respond", CallingConvention = CallingConvention.Cdecl)]
public static extern void Respond(string userId, Reply reply);
[DllImport("discord-rpc", EntryPoint = "Discord_UpdateHandlers", CallingConvention = CallingConvention.Cdecl)]
public static extern void UpdateHandlers(ref EventHandlers handlers);
public static void UpdatePresence(RichPresence presence)
{
var presencestruct = presence.GetStruct();
UpdatePresenceNative(ref presencestruct);
presence.FreeMem();
}
public class RichPresence
{
private RichPresenceStruct _presence;
private readonly List<IntPtr> _buffers = new List<IntPtr>(10);
public string state; /* max 128 bytes */
public string details; /* max 128 bytes */
public long startTimestamp;
public long endTimestamp;
public string largeImageKey; /* max 32 bytes */
public string largeImageText; /* max 128 bytes */
public string smallImageKey; /* max 32 bytes */
public string smallImageText; /* max 128 bytes */
public string partyId; /* max 128 bytes */
public int partySize;
public int partyMax;
public PartyPrivacy partyPrivacy;
public string matchSecret; /* max 128 bytes */
public string joinSecret; /* max 128 bytes */
public string spectateSecret; /* max 128 bytes */
public bool instance;
/// <summary>
/// Get the <see cref="RichPresenceStruct"/> reprensentation of this instance
/// </summary>
/// <returns><see cref="RichPresenceStruct"/> reprensentation of this instance</returns>
internal RichPresenceStruct GetStruct()
{
if (_buffers.Count > 0)
{
FreeMem();
}
_presence.state = StrToPtr(state);
_presence.details = StrToPtr(details);
_presence.startTimestamp = startTimestamp;
_presence.endTimestamp = endTimestamp;
_presence.largeImageKey = StrToPtr(largeImageKey);
_presence.largeImageText = StrToPtr(largeImageText);
_presence.smallImageKey = StrToPtr(smallImageKey);
_presence.smallImageText = StrToPtr(smallImageText);
_presence.partyId = StrToPtr(partyId);
_presence.partySize = partySize;
_presence.partyMax = partyMax;
_presence.partyPrivacy = (int)partyPrivacy;
_presence.matchSecret = StrToPtr(matchSecret);
_presence.joinSecret = StrToPtr(joinSecret);
_presence.spectateSecret = StrToPtr(spectateSecret);
_presence.instance = instance;
return _presence;
}
/// <summary>
/// Returns a pointer to a representation of the given string with a size of maxbytes
/// </summary>
/// <param name="input">String to convert</param>
/// <returns>Pointer to the UTF-8 representation of <see cref="input"/></returns>
private IntPtr StrToPtr(string input)
{
if (string.IsNullOrEmpty(input)) return IntPtr.Zero;
var convbytecnt = Encoding.UTF8.GetByteCount(input);
var buffer = Marshal.AllocHGlobal(convbytecnt + 1);
for (int i = 0; i < convbytecnt + 1; i++)
{
Marshal.WriteByte(buffer, i, 0);
}
_buffers.Add(buffer);
Marshal.Copy(Encoding.UTF8.GetBytes(input), 0, buffer, convbytecnt);
return buffer;
}
/// <summary>
/// Convert string to UTF-8 and add null termination
/// </summary>
/// <param name="toconv">string to convert</param>
/// <returns>UTF-8 representation of <see cref="toconv"/> with added null termination</returns>
private static string StrToUtf8NullTerm(string toconv)
{
var str = toconv.Trim();
var bytes = Encoding.Default.GetBytes(str);
if (bytes.Length > 0 && bytes[bytes.Length - 1] != 0)
{
str += "\0\0";
}
return Encoding.UTF8.GetString(Encoding.UTF8.GetBytes(str));
}
/// <summary>
/// Free the allocated memory for conversion to <see cref="RichPresenceStruct"/>
/// </summary>
internal void FreeMem()
{
for (var i = _buffers.Count - 1; i >= 0; i--)
{
Marshal.FreeHGlobal(_buffers[i]);
_buffers.RemoveAt(i);
}
}
}
}

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using UnityEditor;
using System.Diagnostics;
using System.IO;
[InitializeOnLoad]
public class ScriptBatch
{
static ScriptBatch()
{
EnsureDLL();
}
public static bool FileExists(string filename)
{
return new FileInfo(filename).Exists;
}
public static bool RunRpcBuildScript()
{
UnityEngine.Debug.Log("Try to run build script");
Process proc = new Process();
#if UNITY_STANDALONE_OSX || UNITY_EDITOR_OSX
proc.StartInfo.UseShellExecute = false;
// brew installs cmake in /usr/local/bin, which Unity seems to strip from PATH?
string newPath = proc.StartInfo.EnvironmentVariables["PATH"] + ":/usr/local/bin";
proc.StartInfo.EnvironmentVariables["PATH"] = newPath;
#endif
proc.StartInfo.FileName = "python";
proc.StartInfo.Arguments = "build.py unity";
proc.StartInfo.WorkingDirectory = "../..";
proc.Start();
proc.WaitForExit();
return proc.ExitCode == 0;
}
public static void EnsureDLL()
{
#if UNITY_STANDALONE_WIN || UNITY_EDITOR_WIN
string[] dstDirs = { "Assets/Plugins", "Assets/Plugins/x86", "Assets/Plugins/x86_64" };
string[] dstDlls = { "Assets/Plugins/x86/discord-rpc.dll", "Assets/Plugins/x86_64/discord-rpc.dll" };
string[] srcDlls = { "../../builds/install/win64-dynamic/bin/discord-rpc.dll", "../../builds/install/win64-dynamic/bin/discord-rpc.dll" };
#elif UNITY_STANDALONE_OSX || UNITY_EDITOR_OSX
string[] dstDirs = { "Assets/Plugins" };
string[] dstDlls = { "Assets/Plugins/discord-rpc.bundle" };
string[] srcDlls = { "../../builds/install/osx-dynamic/lib/libdiscord-rpc.dylib" };
#else
string[] dstDirs = { "Assets/Plugins", "Assets/Plugins/x86", "Assets/Plugins/x86_64" };
string[] dstDlls = { "Assets/Plugins/discord-rpc.so" };
string[] srcDlls = { "../../builds/install/linux-dynamic/lib/libdiscord-rpc.so" };
#endif
Debug.Assert(dstDlls.Length == srcDlls.Length);
bool exists = true;
foreach (string fname in dstDlls)
{
if (!FileExists(fname))
{
exists = false;
break;
}
}
if (exists)
{
return;
}
exists = true;
foreach (string fname in srcDlls)
{
if (!FileExists(fname))
{
exists = false;
break;
}
}
if (!exists)
{
if (!RunRpcBuildScript())
{
UnityEngine.Debug.LogError("Build failed");
return;
}
}
// make sure the dirs exist
foreach (string dirname in dstDirs)
{
Directory.CreateDirectory(dirname);
}
// Copy dlls
for (int i = 0; i < dstDlls.Length; ++i)
{
FileUtil.CopyFileOrDirectory(srcDlls[i], dstDlls[i]);
}
}
}

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excludedTargetPlatforms: []
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34
examples/button-clicker/ProjectSettings/UnityConnectSettings.asset Normal file
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4
examples/button-clicker/UnityPackageManager/manifest.json Normal file
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{
"dependencies": {
}
}

21
examples/send-presence/CMakeLists.txt Normal file
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include_directories(${PROJECT_SOURCE_DIR}/include)
add_executable(
send-presence
MACOSX_BUNDLE
send-presence.c
)
set_target_properties(send-presence PROPERTIES
MACOSX_BUNDLE_BUNDLE_NAME "Send Presence"
MACOSX_BUNDLE_GUI_IDENTIFIER "com.discordapp.examples.send-presence"
)
target_link_libraries(send-presence discord-rpc)
install(
TARGETS send-presence
RUNTIME
DESTINATION "bin"
CONFIGURATIONS Release
BUNDLE
DESTINATION "bin"
CONFIGURATIONS Release
)

206
examples/send-presence/send-presence.c Normal file
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/*
This is a simple example in C of using the rich presence API asynchronously.
*/
#define _CRT_SECURE_NO_WARNINGS /* thanks Microsoft */
#include <stdint.h>
#include <stdio.h>
#include <string.h>
#include <time.h>
#include "discord_rpc.h"
static const char* APPLICATION_ID = "345229890980937739";
static int FrustrationLevel = 0;
static int64_t StartTime;
static int SendPresence = 1;
static int prompt(char* line, size_t size)
{
int res;
char* nl;
printf("\n> ");
fflush(stdout);
res = fgets(line, (int)size, stdin) ? 1 : 0;
line[size - 1] = 0;
nl = strchr(line, '\n');
if (nl) {
*nl = 0;
}
return res;
}
static void updateDiscordPresence()
{
if (SendPresence) {
char buffer[256];
DiscordRichPresence discordPresence;
memset(&discordPresence, 0, sizeof(discordPresence));
discordPresence.state = "West of House";
sprintf(buffer, "Frustration level: %d", FrustrationLevel);
discordPresence.details = buffer;
discordPresence.startTimestamp = StartTime;
discordPresence.endTimestamp = time(0) + 5 * 60;
discordPresence.largeImageKey = "canary-large";
discordPresence.smallImageKey = "ptb-small";
discordPresence.partyId = "party1234";
discordPresence.partySize = 1;
discordPresence.partyMax = 6;
discordPresence.partyPrivacy = DISCORD_PARTY_PUBLIC;
discordPresence.matchSecret = "xyzzy";
discordPresence.joinSecret = "join";
discordPresence.spectateSecret = "look";
discordPresence.instance = 0;
Discord_UpdatePresence(&discordPresence);
}
else {
Discord_ClearPresence();
}
}
static void handleDiscordReady(const DiscordUser* connectedUser)
{
printf("\nDiscord: connected to user %s#%s - %s\n",
connectedUser->username,
connectedUser->discriminator,
connectedUser->userId);
}
static void handleDiscordDisconnected(int errcode, const char* message)
{
printf("\nDiscord: disconnected (%d: %s)\n", errcode, message);
}
static void handleDiscordError(int errcode, const char* message)
{
printf("\nDiscord: error (%d: %s)\n", errcode, message);
}
static void handleDiscordJoin(const char* secret)
{
printf("\nDiscord: join (%s)\n", secret);
}
static void handleDiscordSpectate(const char* secret)
{
printf("\nDiscord: spectate (%s)\n", secret);
}
static void handleDiscordJoinRequest(const DiscordUser* request)
{
int response = -1;
char yn[4];
printf("\nDiscord: join request from %s#%s - %s\n",
request->username,
request->discriminator,
request->userId);
do {
printf("Accept? (y/n)");
if (!prompt(yn, sizeof(yn))) {
break;
}
if (!yn[0]) {
continue;
}
if (yn[0] == 'y') {
response = DISCORD_REPLY_YES;
break;
}
if (yn[0] == 'n') {
response = DISCORD_REPLY_NO;
break;
}
} while (1);
if (response != -1) {
Discord_Respond(request->userId, response);
}
}
static void discordInit()
{
DiscordEventHandlers handlers;
memset(&handlers, 0, sizeof(handlers));
handlers.ready = handleDiscordReady;
handlers.disconnected = handleDiscordDisconnected;
handlers.errored = handleDiscordError;
handlers.joinGame = handleDiscordJoin;
handlers.spectateGame = handleDiscordSpectate;
handlers.joinRequest = handleDiscordJoinRequest;
Discord_Initialize(APPLICATION_ID, &handlers, 1, NULL);
}
static void gameLoop()
{
char line[512];
char* space;
StartTime = time(0);
printf("You are standing in an open field west of a white house.\n");
while (prompt(line, sizeof(line))) {
if (line[0]) {
if (line[0] == 'q') {
break;
}
if (line[0] == 't') {
printf("Shutting off Discord.\n");
Discord_Shutdown();
continue;
}
if (line[0] == 'c') {
if (SendPresence) {
printf("Clearing presence information.\n");
SendPresence = 0;
}
else {
printf("Restoring presence information.\n");
SendPresence = 1;
}
updateDiscordPresence();
continue;
}
if (line[0] == 'y') {
printf("Reinit Discord.\n");
discordInit();
continue;
}
if (time(NULL) & 1) {
printf("I don't understand that.\n");
}
else {
space = strchr(line, ' ');
if (space) {
*space = 0;
}
printf("I don't know the word \"%s\".\n", line);
}
++FrustrationLevel;
updateDiscordPresence();
}
#ifdef DISCORD_DISABLE_IO_THREAD
Discord_UpdateConnection();
#endif
Discord_RunCallbacks();
}
}
int main(int argc, char* argv[])
{
discordInit();
gameLoop();
Discord_Shutdown();
return 0;
}

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# Visual Studio 2015 user specific files
.vs/
# Visual Studio 2015 database file
*.VC.db
# Compiled Object files
*.slo
*.lo
*.o
*.obj
# Precompiled Headers
*.gch
*.pch
# Compiled Dynamic libraries
*.so
*.dylib
*.dll
# Fortran module files
*.mod
# Compiled Static libraries
*.lai
*.la
*.a
*.lib
# Executables
*.exe
*.out
*.app
*.ipa
# These project files can be generated by the engine
*.xcodeproj
*.xcworkspace
*.sln
*.suo
*.opensdf
*.sdf
*.VC.db
*.VC.opendb
# Precompiled Assets
SourceArt/**/*.png
SourceArt/**/*.tga
# Binary Files
Binaries/
# Builds
Build/*
# Whitelist PakBlacklist-<BuildConfiguration>.txt files
!Build/*/
Build/*/**
!Build/*/PakBlacklist*.txt
# Don't ignore icon files in Build
!Build/**/*.ico
# Built data for maps
*_BuiltData.uasset
# Configuration files generated by the Editor
Saved/*
# Compiled source files for the engine to use
Intermediate/
# Cache files for the editor to use
DerivedDataCache/
# Library headers must be copied automatically by the build script (build.py unreal)
Plugins/DiscordRpc/Source/ThirdParty/DiscordRpcLibrary/Include

0
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examples/unrealstatus/Config/DefaultEngine.ini Normal file
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[URL]
[/Script/HardwareTargeting.HardwareTargetingSettings]
TargetedHardwareClass=Desktop
AppliedTargetedHardwareClass=Desktop
DefaultGraphicsPerformance=Maximum
AppliedDefaultGraphicsPerformance=Maximum
[/Script/Engine.EndUserSettings]
bSendAnonymousUsageDataToEpic=False
[/Script/Engine.PhysicsSettings]
DefaultGravityZ=-980.000000
DefaultTerminalVelocity=4000.000000
DefaultFluidFriction=0.300000
SimulateScratchMemorySize=262144
RagdollAggregateThreshold=4
TriangleMeshTriangleMinAreaThreshold=5.000000
bEnableAsyncScene=False
bEnableShapeSharing=False
bEnablePCM=False
bEnableStabilization=False
bWarnMissingLocks=True
bEnable2DPhysics=False
LockedAxis=Invalid
DefaultDegreesOfFreedom=Full3D
BounceThresholdVelocity=200.000000
FrictionCombineMode=Average
RestitutionCombineMode=Average
MaxAngularVelocity=3600.000000
MaxDepenetrationVelocity=0.000000
ContactOffsetMultiplier=0.010000
MinContactOffset=0.000100
MaxContactOffset=1.000000
bSimulateSkeletalMeshOnDedicatedServer=True
DefaultShapeComplexity=CTF_UseSimpleAndComplex
bDefaultHasComplexCollision=True
bSuppressFaceRemapTable=False
bSupportUVFromHitResults=False
bDisableActiveActors=False
bDisableCCD=False
MaxPhysicsDeltaTime=0.033333
bSubstepping=False
bSubsteppingAsync=False
MaxSubstepDeltaTime=0.016667
MaxSubsteps=6
SyncSceneSmoothingFactor=0.000000
AsyncSceneSmoothingFactor=0.990000
InitialAverageFrameRate=0.016667
[/Script/EngineSettings.GameMapsSettings]
EditorStartupMap=/Game/ShowTheUILevel.ShowTheUILevel
GameDefaultMap=/Game/ShowTheUILevel.ShowTheUILevel

7
examples/unrealstatus/Config/DefaultGame.ini Normal file
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[/Script/EngineSettings.GeneralProjectSettings]
ProjectID=E5977A24492699DF20B8ADBF736AF6C6
ProjectName=Discord RPC Example
CompanyName=Discord Inc.
Homepage="https://discordapp.com/"
CopyrightNotice=

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examples/unrealstatus/Plugins/discordrpc/DiscordRpc.uplugin Normal file
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{
"FileVersion": 3,
"Version": 1,
"VersionName": "1.0",
"FriendlyName": "Discord RPC",
"Description": "Wrap the Discord RPC library.",
"Category": "Messaging",
"CreatedBy": "Chris Marsh <chris@discordapp.com>",
"CreatedByURL": "https://discordapp.com/",
"DocsURL": "",
"MarketplaceURL": "",
"SupportURL": "",
"CanContainContent": true,
"IsBetaVersion": true,
"Installed": false,
"Modules": [
{
"Name": "DiscordRpc",
"Type": "Runtime",
"LoadingPhase": "PreDefault",
"WhitelistPlatforms" :
[
"Win64",
"Linux",
"Mac"
]
}
]
}

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57
examples/unrealstatus/Plugins/discordrpc/Source/DiscordRpc/DiscordRpc.Build.cs Normal file
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// Copyright 1998-2017 Epic Games, Inc. All Rights Reserved.
using UnrealBuildTool;
using System.IO;
public class DiscordRpc : ModuleRules
{
#if WITH_FORWARDED_MODULE_RULES_CTOR
public DiscordRpc(ReadOnlyTargetRules Target) : base(Target)
#else
public DiscordRpc(TargetInfo Target)
#endif
{
Definitions.Add("DISCORD_DYNAMIC_LIB=1");
PublicIncludePaths.AddRange(
new string[] {
"DiscordRpc/Public"
}
);
PrivateIncludePaths.AddRange(
new string[] {
"DiscordRpc/Private"
}
);
PublicDependencyModuleNames.AddRange(
new string[]
{
"Core",
"DiscordRpcLibrary"
}
);
PrivateDependencyModuleNames.AddRange(
new string[]
{
"CoreUObject",
"Engine",
"Slate",
"SlateCore",
"Projects"
}
);
DynamicallyLoadedModuleNames.AddRange(
new string[]
{
// ... add any modules that your module loads dynamically here ...
}
);
string BaseDirectory = Path.GetFullPath(Path.Combine(ModuleDirectory, "..", "..", "Source", "ThirdParty", "DiscordRpcLibrary"));
PublicIncludePaths.Add(Path.Combine(BaseDirectory, "Include"));
}
}

76
examples/unrealstatus/Plugins/discordrpc/Source/DiscordRpc/Private/DiscordRpc.cpp Normal file
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// Copyright 1998-2017 Epic Games, Inc. All Rights Reserved.
#include "DiscordRpcPrivatePCH.h"
#include "IPluginManager.h"
#include "ModuleManager.h"
#define LOCTEXT_NAMESPACE "FDiscordRpcModule"
void FDiscordRpcModule::StartupModule()
{
#if !PLATFORM_LINUX
#if defined(DISCORD_DYNAMIC_LIB)
// Get the base directory of this plugin
FString BaseDir = IPluginManager::Get().FindPlugin("DiscordRpc")->GetBaseDir();
const FString SDKDir =
FPaths::Combine(*BaseDir, TEXT("Source"), TEXT("ThirdParty"), TEXT("DiscordRpcLibrary"));
#if PLATFORM_WINDOWS
const FString LibName = TEXT("discord-rpc");
const FString LibDir = FPaths::Combine(*SDKDir, TEXT("Win64"));
if (!LoadDependency(LibDir, LibName, DiscordRpcLibraryHandle)) {
FMessageDialog::Open(
EAppMsgType::Ok,
LOCTEXT(LOCTEXT_NAMESPACE,
"Failed to load DiscordRpc plugin. Plug-in will not be functional."));
FreeDependency(DiscordRpcLibraryHandle);
}
#elif PLATFORM_MAC
const FString LibName = TEXT("libdiscord-rpc");
const FString LibDir = FPaths::Combine(*SDKDir, TEXT("Mac"));
if (!LoadDependency(LibDir, LibName, DiscordRpcLibraryHandle)) {
FMessageDialog::Open(
EAppMsgType::Ok,
LOCTEXT(LOCTEXT_NAMESPACE,
"Failed to load DiscordRpc plugin. Plug-in will not be functional."));
FreeDependency(DiscordRpcLibraryHandle);
}
#endif
#endif
#endif
}
void FDiscordRpcModule::ShutdownModule()
{
// Free the dll handle
#if !PLATFORM_LINUX
#if defined(DISCORD_DYNAMIC_LIB)
FreeDependency(DiscordRpcLibraryHandle);
#endif
#endif
}
bool FDiscordRpcModule::LoadDependency(const FString& Dir, const FString& Name, void*& Handle)
{
FString Lib = Name + TEXT(".") + FPlatformProcess::GetModuleExtension();
FString Path = Dir.IsEmpty() ? *Lib : FPaths::Combine(*Dir, *Lib);
Handle = FPlatformProcess::GetDllHandle(*Path);
if (Handle == nullptr) {
return false;
}
return true;
}
void FDiscordRpcModule::FreeDependency(void*& Handle)
{
if (Handle != nullptr) {
FPlatformProcess::FreeDllHandle(Handle);
Handle = nullptr;
}
}
#undef LOCTEXT_NAMESPACE
IMPLEMENT_MODULE(FDiscordRpcModule, DiscordRpc)

172
examples/unrealstatus/Plugins/discordrpc/Source/DiscordRpc/Private/DiscordRpcBlueprint.cpp Normal file
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#include "DiscordRpcPrivatePCH.h"
#include "DiscordRpcBlueprint.h"
#include "discord_rpc.h"
DEFINE_LOG_CATEGORY(Discord)
static UDiscordRpc* self = nullptr;
static void ReadyHandler(const DiscordUser* connectedUser)
{
FDiscordUserData ud;
ud.userId = ANSI_TO_TCHAR(connectedUser->userId);
ud.username = ANSI_TO_TCHAR(connectedUser->username);
ud.discriminator = ANSI_TO_TCHAR(connectedUser->discriminator);
ud.avatar = ANSI_TO_TCHAR(connectedUser->avatar);
UE_LOG(Discord,
Log,
TEXT("Discord connected to %s - %s#%s"),
*ud.userId,
*ud.username,
*ud.discriminator);
if (self) {
self->IsConnected = true;
self->OnConnected.Broadcast(ud);
}
}
static void DisconnectHandler(int errorCode, const char* message)
{
auto msg = FString(message);
UE_LOG(Discord, Log, TEXT("Discord disconnected (%d): %s"), errorCode, *msg);
if (self) {
self->IsConnected = false;
self->OnDisconnected.Broadcast(errorCode, msg);
}
}
static void ErroredHandler(int errorCode, const char* message)
{
auto msg = FString(message);
UE_LOG(Discord, Log, TEXT("Discord error (%d): %s"), errorCode, *msg);
if (self) {
self->OnErrored.Broadcast(errorCode, msg);
}
}
static void JoinGameHandler(const char* joinSecret)
{
auto secret = FString(joinSecret);
UE_LOG(Discord, Log, TEXT("Discord join %s"), *secret);
if (self) {
self->OnJoin.Broadcast(secret);
}
}
static void SpectateGameHandler(const char* spectateSecret)
{
auto secret = FString(spectateSecret);
UE_LOG(Discord, Log, TEXT("Discord spectate %s"), *secret);
if (self) {
self->OnSpectate.Broadcast(secret);
}
}
static void JoinRequestHandler(const DiscordUser* request)
{
FDiscordUserData ud;
ud.userId = ANSI_TO_TCHAR(request->userId);
ud.username = ANSI_TO_TCHAR(request->username);
ud.discriminator = ANSI_TO_TCHAR(request->discriminator);
ud.avatar = ANSI_TO_TCHAR(request->avatar);
UE_LOG(Discord,
Log,
TEXT("Discord join request from %s - %s#%s"),
*ud.userId,
*ud.username,
*ud.discriminator);
if (self) {
self->OnJoinRequest.Broadcast(ud);
}
}
void UDiscordRpc::Initialize(const FString& applicationId,
bool autoRegister,
const FString& optionalSteamId)
{
self = this;
IsConnected = false;
DiscordEventHandlers handlers{};
handlers.ready = ReadyHandler;
handlers.disconnected = DisconnectHandler;
handlers.errored = ErroredHandler;
if (OnJoin.IsBound()) {
handlers.joinGame = JoinGameHandler;
}
if (OnSpectate.IsBound()) {
handlers.spectateGame = SpectateGameHandler;
}
if (OnJoinRequest.IsBound()) {
handlers.joinRequest = JoinRequestHandler;
}
auto appId = StringCast<ANSICHAR>(*applicationId);
auto steamId = StringCast<ANSICHAR>(*optionalSteamId);
Discord_Initialize(
(const char*)appId.Get(), &handlers, autoRegister, (const char*)steamId.Get());
}
void UDiscordRpc::Shutdown()
{
Discord_Shutdown();
self = nullptr;
}
void UDiscordRpc::RunCallbacks()
{
Discord_RunCallbacks();
}
void UDiscordRpc::UpdatePresence()
{
DiscordRichPresence rp{};
auto state = StringCast<ANSICHAR>(*RichPresence.state);
rp.state = state.Get();
auto details = StringCast<ANSICHAR>(*RichPresence.details);
rp.details = details.Get();
auto largeImageKey = StringCast<ANSICHAR>(*RichPresence.largeImageKey);
rp.largeImageKey = largeImageKey.Get();
auto largeImageText = StringCast<ANSICHAR>(*RichPresence.largeImageText);
rp.largeImageText = largeImageText.Get();
auto smallImageKey = StringCast<ANSICHAR>(*RichPresence.smallImageKey);
rp.smallImageKey = smallImageKey.Get();
auto smallImageText = StringCast<ANSICHAR>(*RichPresence.smallImageText);
rp.smallImageText = smallImageText.Get();
auto partyId = StringCast<ANSICHAR>(*RichPresence.partyId);
rp.partyId = partyId.Get();
auto matchSecret = StringCast<ANSICHAR>(*RichPresence.matchSecret);
rp.matchSecret = matchSecret.Get();
auto joinSecret = StringCast<ANSICHAR>(*RichPresence.joinSecret);
rp.joinSecret = joinSecret.Get();
auto spectateSecret = StringCast<ANSICHAR>(*RichPresence.spectateSecret);
rp.spectateSecret = spectateSecret.Get();
rp.startTimestamp = RichPresence.startTimestamp;
rp.endTimestamp = RichPresence.endTimestamp;
rp.partySize = RichPresence.partySize;
rp.partyMax = RichPresence.partyMax;
rp.partyPrivacy = (int)RichPresence.partyPrivacy;
rp.instance = RichPresence.instance;
Discord_UpdatePresence(&rp);
}
void UDiscordRpc::ClearPresence()
{
Discord_ClearPresence();
}
void UDiscordRpc::Respond(const FString& userId, int reply)
{
UE_LOG(Discord, Log, TEXT("Responding %d to join request from %s"), reply, *userId);
FTCHARToUTF8 utf8_userid(*userId);
Discord_Respond(utf8_userid.Get(), reply);
}

2
examples/unrealstatus/Plugins/discordrpc/Source/DiscordRpc/Private/DiscordRpcPrivatePCH.h Normal file
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#include "Core.h"
#include "DiscordRpc.h"

20
examples/unrealstatus/Plugins/discordrpc/Source/DiscordRpc/Public/DiscordRpc.h Normal file
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// Copyright 1998-2017 Epic Games, Inc. All Rights Reserved.
#pragma once
#include "ModuleManager.h"
class FDiscordRpcModule : public IModuleInterface {
public:
/** IModuleInterface implementation */
virtual void StartupModule() override;
virtual void ShutdownModule() override;
private:
/** Handle to the test dll we will load */
void* DiscordRpcLibraryHandle;
/** StartupModule is covered with defines, these functions are the place to put breakpoints */
static bool LoadDependency(const FString& Dir, const FString& Name, void*& Handle);
static void FreeDependency(void*& Handle);
};

181
examples/unrealstatus/Plugins/discordrpc/Source/DiscordRpc/Public/DiscordRpcBlueprint.h Normal file
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#pragma once
#include "CoreMinimal.h"
#include "Engine.h"
#include "DiscordRpcBlueprint.generated.h"
// unreal's header tool hates clang-format
// clang-format off
/**
* Ask to join callback data
*/
USTRUCT(BlueprintType)
struct FDiscordUserData {
GENERATED_USTRUCT_BODY()
UPROPERTY(BlueprintReadOnly)
FString userId;
UPROPERTY(BlueprintReadOnly)
FString username;
UPROPERTY(BlueprintReadOnly)
FString discriminator;
UPROPERTY(BlueprintReadOnly)
FString avatar;
};
/**
* Valid response codes for Respond function
*/
UENUM(BlueprintType)
enum class EDiscordJoinResponseCodes : uint8
{
DISCORD_REPLY_NO UMETA(DisplayName="No"),
DISCORD_REPLY_YES UMETA(DisplayName="Yes"),
DISCORD_REPLY_IGNORE UMETA(DisplayName="Ignore")
};
/**
* Valid party privacy values
*/
UENUM(BlueprintType)
enum class EDiscordPartyPrivacy: uint8
{
DISCORD_PARTY_PRIVATE UMETA(DisplayName="Private"),
DISCORD_PARTY_PUBLIC UMETA(DisplayName="Public")
};
DECLARE_LOG_CATEGORY_EXTERN(Discord, Log, All);
DECLARE_DYNAMIC_MULTICAST_DELEGATE_OneParam(FDiscordConnected, const FDiscordUserData&, joinRequest);
DECLARE_DYNAMIC_MULTICAST_DELEGATE_TwoParams(FDiscordDisconnected, int, errorCode, const FString&, errorMessage);
DECLARE_DYNAMIC_MULTICAST_DELEGATE_TwoParams(FDiscordErrored, int, errorCode, const FString&, errorMessage);
DECLARE_DYNAMIC_MULTICAST_DELEGATE_OneParam(FDiscordJoin, const FString&, joinSecret);
DECLARE_DYNAMIC_MULTICAST_DELEGATE_OneParam(FDiscordSpectate, const FString&, spectateSecret);
DECLARE_DYNAMIC_MULTICAST_DELEGATE_OneParam(FDiscordJoinRequest, const FDiscordUserData&, joinRequest);
// clang-format on
/**
* Rich presence data
*/
USTRUCT(BlueprintType)
struct FDiscordRichPresence {
GENERATED_USTRUCT_BODY()
UPROPERTY(BlueprintReadWrite)
FString state;
UPROPERTY(BlueprintReadWrite)
FString details;
// todo, timestamps are 64bit, does that even matter?
UPROPERTY(BlueprintReadWrite)
int startTimestamp;
UPROPERTY(BlueprintReadWrite)
int endTimestamp;
UPROPERTY(BlueprintReadWrite)
FString largeImageKey;
UPROPERTY(BlueprintReadWrite)
FString largeImageText;
UPROPERTY(BlueprintReadWrite)
FString smallImageKey;
UPROPERTY(BlueprintReadWrite)
FString smallImageText;
UPROPERTY(BlueprintReadWrite)
FString partyId;
UPROPERTY(BlueprintReadWrite)
int partySize;
UPROPERTY(BlueprintReadWrite)
int partyMax;
UPROPERTY(BlueprintReadWrite)
EDiscordPartyPrivacy partyPrivacy;
UPROPERTY(BlueprintReadWrite)
FString matchSecret;
UPROPERTY(BlueprintReadWrite)
FString joinSecret;
UPROPERTY(BlueprintReadWrite)
FString spectateSecret;
UPROPERTY(BlueprintReadWrite)
bool instance;
};
/**
*
*/
UCLASS(BlueprintType, meta = (DisplayName = "Discord RPC"), Category = "Discord")
class DISCORDRPC_API UDiscordRpc : public UObject {
GENERATED_BODY()
public:
UFUNCTION(BlueprintCallable,
meta = (DisplayName = "Initialize connection", Keywords = "Discord rpc"),
Category = "Discord")
void Initialize(const FString& applicationId,
bool autoRegister,
const FString& optionalSteamId);
UFUNCTION(BlueprintCallable,
meta = (DisplayName = "Shut down connection", Keywords = "Discord rpc"),
Category = "Discord")
void Shutdown();
UFUNCTION(BlueprintCallable,
meta = (DisplayName = "Check for callbacks", Keywords = "Discord rpc"),
Category = "Discord")
void RunCallbacks();
UFUNCTION(BlueprintCallable,
meta = (DisplayName = "Send presence", Keywords = "Discord rpc"),
Category = "Discord")
void UpdatePresence();
UFUNCTION(BlueprintCallable,
meta = (DisplayName = "Clear presence", Keywords = "Discord rpc"),
Category = "Discord")
void ClearPresence();
UFUNCTION(BlueprintCallable,
meta = (DisplayName = "Respond to join request", Keywords = "Discord rpc"),
Category = "Discord")
void Respond(const FString& userId, int reply);
UPROPERTY(BlueprintReadOnly,
meta = (DisplayName = "Is Discord connected", Keywords = "Discord rpc"),
Category = "Discord")
bool IsConnected;
UPROPERTY(BlueprintAssignable,
meta = (DisplayName = "On connection", Keywords = "Discord rpc"),
Category = "Discord")
FDiscordConnected OnConnected;
UPROPERTY(BlueprintAssignable,
meta = (DisplayName = "On disconnection", Keywords = "Discord rpc"),
Category = "Discord")
FDiscordDisconnected OnDisconnected;
UPROPERTY(BlueprintAssignable,
meta = (DisplayName = "On error message", Keywords = "Discord rpc"),
Category = "Discord")
FDiscordErrored OnErrored;
UPROPERTY(BlueprintAssignable,
meta = (DisplayName = "When Discord user presses join", Keywords = "Discord rpc"),
Category = "Discord")
FDiscordJoin OnJoin;
UPROPERTY(BlueprintAssignable,
meta = (DisplayName = "When Discord user presses spectate", Keywords = "Discord rpc"),
Category = "Discord")
FDiscordSpectate OnSpectate;
UPROPERTY(BlueprintAssignable,
meta = (DisplayName = "When Discord another user sends a join request",
Keywords = "Discord rpc"),
Category = "Discord")
FDiscordJoinRequest OnJoinRequest;
UPROPERTY(BlueprintReadWrite,
meta = (DisplayName = "Rich presence info", Keywords = "Discord rpc"),
Category = "Discord")
FDiscordRichPresence RichPresence;
};

59
examples/unrealstatus/Plugins/discordrpc/Source/ThirdParty/DiscordRpcLibrary/DiscordRpcLibrary.Build.cs vendored Normal file
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// Fill out your copyright notice in the Description page of Project Settings.
using System.IO;
using UnrealBuildTool;
public class DiscordRpcLibrary : ModuleRules
{
#if WITH_FORWARDED_MODULE_RULES_CTOR
public DiscordRpcLibrary(ReadOnlyTargetRules Target) : base(Target)
#else
public DiscordRpcLibrary(TargetInfo Target)
#endif
{
Type = ModuleType.External;
Definitions.Add("DISCORD_DYNAMIC_LIB=1");
string BaseDirectory = Path.GetFullPath(Path.Combine(ModuleDirectory, "..", "..", "ThirdParty", "DiscordRpcLibrary"));
if (Target.Platform == UnrealTargetPlatform.Win64)
{
string lib = Path.Combine(BaseDirectory, "Win64");
// Include headers
PublicIncludePaths.Add(Path.Combine(BaseDirectory, "Include"));
// Add the import library
PublicLibraryPaths.Add(lib);
PublicAdditionalLibraries.Add(Path.Combine(lib, "discord-rpc.lib"));
// Dynamic
RuntimeDependencies.Add(new RuntimeDependency(Path.Combine(lib, "discord-rpc.dll")));
PublicDelayLoadDLLs.Add("discord-rpc.dll");
}
else if (Target.Platform == UnrealTargetPlatform.Linux)
{
string lib = Path.Combine(BaseDirectory, "Linux", "x86_64-unknown-linux-gnu");
// Include headers
PublicIncludePaths.Add(Path.Combine(BaseDirectory, "Include"));
// Add the import library
PublicLibraryPaths.Add(lib);
PublicAdditionalLibraries.Add(Path.Combine(lib, "libdiscord-rpc.so"));
RuntimeDependencies.Add(new RuntimeDependency(Path.Combine(lib, "libdiscord-rpc.so")));
}
else if (Target.Platform == UnrealTargetPlatform.Mac)
{
string lib = Path.Combine(BaseDirectory, "Mac");
// Include headers
PublicIncludePaths.Add(Path.Combine(BaseDirectory, "Include"));
// Add the import library
PublicLibraryPaths.Add(lib);
PublicAdditionalLibraries.Add(Path.Combine(lib, "libdiscord-rpc.dylib"));
RuntimeDependencies.Add(new RuntimeDependency(Path.Combine(lib, "libdiscord-rpc.dylib")));
}
}
}

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examples/unrealstatus/Source/unrealstatus.Target.cs Normal file
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// Fill out your copyright notice in the Description page of Project Settings.
using UnrealBuildTool;
using System.Collections.Generic;
public class unrealstatusTarget : TargetRules
{
public unrealstatusTarget(TargetInfo Target) : base(Target)
{
Type = TargetType.Game;
ExtraModuleNames.AddRange( new string[] { "unrealstatus" } );
}
}

23
examples/unrealstatus/Source/unrealstatus/unrealstatus.Build.cs Normal file
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// Fill out your copyright notice in the Description page of Project Settings.
using UnrealBuildTool;
public class unrealstatus : ModuleRules
{
public unrealstatus(ReadOnlyTargetRules Target) : base(Target)
{
PCHUsage = PCHUsageMode.UseExplicitOrSharedPCHs;
PublicDependencyModuleNames.AddRange(new string[] { "Core", "CoreUObject", "Engine", "InputCore" });
PrivateDependencyModuleNames.AddRange(new string[] { });
// Uncomment if you are using Slate UI
// PrivateDependencyModuleNames.AddRange(new string[] { "Slate", "SlateCore" });
// Uncomment if you are using online features
// PrivateDependencyModuleNames.Add("OnlineSubsystem");
// To include OnlineSubsystemSteam, add it to the plugins section in your uproject file with the Enabled attribute set to true
}
}

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examples/unrealstatus/Source/unrealstatus/unrealstatus.cpp Normal file
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// Fill out your copyright notice in the Description page of Project Settings.
#include "unrealstatus.h"
#include "Modules/ModuleManager.h"
IMPLEMENT_PRIMARY_GAME_MODULE(FDefaultGameModuleImpl, unrealstatus, "unrealstatus");

5
examples/unrealstatus/Source/unrealstatus/unrealstatus.h Normal file
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// Fill out your copyright notice in the Description page of Project Settings.
#pragma once
#include "CoreMinimal.h"

3
examples/unrealstatus/Source/unrealstatus/unrealstatusGameModeBase.cpp Normal file
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// Fill out your copyright notice in the Description page of Project Settings.
#include "unrealstatusGameModeBase.h"

15
examples/unrealstatus/Source/unrealstatus/unrealstatusGameModeBase.h Normal file
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// Fill out your copyright notice in the Description page of Project Settings.
#pragma once
#include "CoreMinimal.h"
#include "GameFramework/GameModeBase.h"
#include "unrealstatusGameModeBase.generated.h"
/**
*
*/
UCLASS()
class UNREALSTATUS_API AunrealstatusGameModeBase : public AGameModeBase {
GENERATED_BODY()
};

14
examples/unrealstatus/Source/unrealstatusEditor.Target.cs Normal file
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// Fill out your copyright notice in the Description page of Project Settings.
using UnrealBuildTool;
using System.Collections.Generic;
public class unrealstatusEditorTarget : TargetRules
{
public unrealstatusEditorTarget(TargetInfo Target) : base(Target)
{
Type = TargetType.Editor;
ExtraModuleNames.AddRange( new string[] { "unrealstatus" } );
}
}

19
examples/unrealstatus/unrealstatus.uproject Normal file
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{
"FileVersion": 3,
"EngineAssociation": "4.18",
"Category": "",
"Description": "",
"Modules": [
{
"Name": "unrealstatus",
"Type": "Runtime",
"LoadingPhase": "Default"
}
],
"TargetPlatforms": [
"LinuxNoEditor",
"MacNoEditor",
"WindowsNoEditor",
"AllDesktop"
]
}

26
include/discord_register.h Normal file
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#pragma once
#if defined(DISCORD_DYNAMIC_LIB)
#if defined(_WIN32)
#if defined(DISCORD_BUILDING_SDK)
#define DISCORD_EXPORT __declspec(dllexport)
#else
#define DISCORD_EXPORT __declspec(dllimport)
#endif
#else
#define DISCORD_EXPORT __attribute__((visibility("default")))
#endif
#else
#define DISCORD_EXPORT
#endif
#ifdef __cplusplus
extern "C" {
#endif
DISCORD_EXPORT void Discord_Register(const char* applicationId, const char* command);
DISCORD_EXPORT void Discord_RegisterSteamGame(const char* applicationId, const char* steamId);
#ifdef __cplusplus
}
#endif

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include/discord_rpc.h Normal file
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#pragma once
#include <stdint.h>
// clang-format off
#if defined(DISCORD_DYNAMIC_LIB)
# if defined(_WIN32)
# if defined(DISCORD_BUILDING_SDK)
# define DISCORD_EXPORT __declspec(dllexport)
# else
# define DISCORD_EXPORT __declspec(dllimport)
# endif
# else
# define DISCORD_EXPORT __attribute__((visibility("default")))
# endif
#else
# define DISCORD_EXPORT
#endif
// clang-format on
#ifdef __cplusplus
extern "C" {
#endif
typedef struct DiscordRichPresence {
const char* state; /* max 128 bytes */
const char* details; /* max 128 bytes */
int64_t startTimestamp;
int64_t endTimestamp;
const char* largeImageKey; /* max 32 bytes */
const char* largeImageText; /* max 128 bytes */
const char* smallImageKey; /* max 32 bytes */
const char* smallImageText; /* max 128 bytes */
const char* partyId; /* max 128 bytes */
int partySize;
int partyMax;
int partyPrivacy;
const char* matchSecret; /* max 128 bytes */
const char* joinSecret; /* max 128 bytes */
const char* spectateSecret; /* max 128 bytes */
int8_t instance;
} DiscordRichPresence;
typedef struct DiscordUser {
const char* userId;
const char* username;
const char* discriminator;
const char* avatar;
} DiscordUser;
typedef struct DiscordEventHandlers {
void (*ready)(const DiscordUser* request);
void (*disconnected)(int errorCode, const char* message);
void (*errored)(int errorCode, const char* message);
void (*joinGame)(const char* joinSecret);
void (*spectateGame)(const char* spectateSecret);
void (*joinRequest)(const DiscordUser* request);
} DiscordEventHandlers;
#define DISCORD_REPLY_NO 0
#define DISCORD_REPLY_YES 1
#define DISCORD_REPLY_IGNORE 2
#define DISCORD_PARTY_PRIVATE 0
#define DISCORD_PARTY_PUBLIC 1
DISCORD_EXPORT void Discord_Initialize(const char* applicationId,
DiscordEventHandlers* handlers,
int autoRegister,
const char* optionalSteamId);
DISCORD_EXPORT void Discord_Shutdown(void);
/* checks for incoming messages, dispatches callbacks */
DISCORD_EXPORT void Discord_RunCallbacks(void);
/* If you disable the lib starting its own io thread, you'll need to call this from your own */
#ifdef DISCORD_DISABLE_IO_THREAD
DISCORD_EXPORT void Discord_UpdateConnection(void);
#endif
DISCORD_EXPORT void Discord_UpdatePresence(const DiscordRichPresence* presence);
DISCORD_EXPORT void Discord_ClearPresence(void);
DISCORD_EXPORT void Discord_Respond(const char* userid, /* DISCORD_REPLY_ */ int reply);
DISCORD_EXPORT void Discord_UpdateHandlers(DiscordEventHandlers* handlers);
#ifdef __cplusplus
} /* extern "C" */
#endif

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include_directories(${PROJECT_SOURCE_DIR}/include)
option(ENABLE_IO_THREAD "Start up a separate I/O thread, otherwise I'd need to call an update function" ON)
option(USE_STATIC_CRT "Use /MT[d] for dynamic library" OFF)
option(WARNINGS_AS_ERRORS "When enabled, compiles with `-Werror` (on *nix platforms)." OFF)
set(CMAKE_CXX_STANDARD 14)
set(BASE_RPC_SRC
${PROJECT_SOURCE_DIR}/include/discord_rpc.h
discord_rpc.cpp
${PROJECT_SOURCE_DIR}/include/discord_register.h
rpc_connection.h
rpc_connection.cpp
serialization.h
serialization.cpp
connection.h
backoff.h
msg_queue.h
)
if (${BUILD_SHARED_LIBS})
if(WIN32)
set(BASE_RPC_SRC ${BASE_RPC_SRC} dllmain.cpp)
endif(WIN32)
endif(${BUILD_SHARED_LIBS})
if(WIN32)
add_definitions(-DDISCORD_WINDOWS)
set(BASE_RPC_SRC ${BASE_RPC_SRC} connection_win.cpp discord_register_win.cpp)
add_library(discord-rpc ${BASE_RPC_SRC})
if (MSVC)
if(USE_STATIC_CRT)
foreach(CompilerFlag
CMAKE_CXX_FLAGS
CMAKE_CXX_FLAGS_DEBUG
CMAKE_CXX_FLAGS_RELEASE
CMAKE_C_FLAGS
CMAKE_C_FLAGS_DEBUG
CMAKE_C_FLAGS_RELEASE)
string(REPLACE "/MD" "/MT" ${CompilerFlag} "${${CompilerFlag}}")
endforeach()
endif(USE_STATIC_CRT)
target_compile_options(discord-rpc PRIVATE /EHsc
/Wall
/wd4100 # unreferenced formal parameter
/wd4514 # unreferenced inline
/wd4625 # copy constructor deleted
/wd5026 # move constructor deleted
/wd4626 # move assignment operator deleted
/wd4668 # not defined preprocessor macro
/wd4710 # function not inlined
/wd4711 # function was inlined
/wd4820 # structure padding
/wd4946 # reinterpret_cast used between related classes
/wd5027 # move assignment operator was implicitly defined as deleted
)
endif(MSVC)
target_link_libraries(discord-rpc PRIVATE psapi advapi32)
endif(WIN32)
if(UNIX)
set(BASE_RPC_SRC ${BASE_RPC_SRC} connection_unix.cpp)
if (APPLE)
add_definitions(-DDISCORD_OSX)
set(BASE_RPC_SRC ${BASE_RPC_SRC} discord_register_osx.m)
else (APPLE)
add_definitions(-DDISCORD_LINUX)
set(BASE_RPC_SRC ${BASE_RPC_SRC} discord_register_linux.cpp)
endif(APPLE)
add_library(discord-rpc ${BASE_RPC_SRC})
target_link_libraries(discord-rpc PUBLIC pthread)
if (APPLE)
target_link_libraries(discord-rpc PRIVATE "-framework AppKit, -mmacosx-version-min=10.10")
endif (APPLE)
target_compile_options(discord-rpc PRIVATE
-g
-Wall
-Wextra
-Wpedantic
)
if (${WARNINGS_AS_ERRORS})
target_compile_options(discord-rpc PRIVATE -Werror)
endif (${WARNINGS_AS_ERRORS})
target_compile_options(discord-rpc PRIVATE
-Wno-unknown-pragmas # pragma push thing doesn't work on clang
-Wno-old-style-cast # it's fine
-Wno-c++98-compat # that was almost 2 decades ago
-Wno-c++98-compat-pedantic
-Wno-missing-noreturn
-Wno-padded # structure padding
-Wno-covered-switch-default
-Wno-exit-time-destructors # not sure about these
-Wno-global-constructors
)
if (${BUILD_SHARED_LIBS})
target_compile_options(discord-rpc PRIVATE -fPIC)
endif (${BUILD_SHARED_LIBS})
if (APPLE)
target_link_libraries(discord-rpc PRIVATE "-framework AppKit")
endif (APPLE)
endif(UNIX)
target_include_directories(discord-rpc PRIVATE ${RAPIDJSON}/include)
if (NOT ${ENABLE_IO_THREAD})
target_compile_definitions(discord-rpc PUBLIC -DDISCORD_DISABLE_IO_THREAD)
endif (NOT ${ENABLE_IO_THREAD})
if (${BUILD_SHARED_LIBS})
target_compile_definitions(discord-rpc PUBLIC -DDISCORD_DYNAMIC_LIB)
target_compile_definitions(discord-rpc PRIVATE -DDISCORD_BUILDING_SDK)
endif(${BUILD_SHARED_LIBS})
if (CLANG_FORMAT_CMD)
add_dependencies(discord-rpc clangformat)
endif(CLANG_FORMAT_CMD)
# install
install(
TARGETS discord-rpc
EXPORT "discord-rpc"
RUNTIME
DESTINATION "${CMAKE_INSTALL_BINDIR}"
LIBRARY
DESTINATION "${CMAKE_INSTALL_LIBDIR}"
ARCHIVE
DESTINATION "${CMAKE_INSTALL_LIBDIR}"
INCLUDES
DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}"
)
install(
FILES
"../include/discord_rpc.h"
"../include/discord_register.h"
DESTINATION "include"
)

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#pragma once
#include <algorithm>
#include <random>
#include <stdint.h>
#include <time.h>
struct Backoff {
int64_t minAmount;
int64_t maxAmount;
int64_t current;
int fails;
std::mt19937_64 randGenerator;
std::uniform_real_distribution<> randDistribution;
double rand01() { return randDistribution(randGenerator); }
Backoff(int64_t min, int64_t max)
: minAmount(min)
, maxAmount(max)
, current(min)
, fails(0)
, randGenerator((uint64_t)time(0))
{
}
void reset()
{
fails = 0;
current = minAmount;
}
int64_t nextDelay()
{
++fails;
int64_t delay = (int64_t)((double)current * 2.0 * rand01());
current = std::min(current + delay, maxAmount);
return current;
}
};

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src/connection.h Normal file
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#pragma once
// This is to wrap the platform specific kinds of connect/read/write.
#include <stdint.h>
#include <stdlib.h>
// not really connectiony, but need per-platform
int GetProcessId();
struct BaseConnection {
static BaseConnection* Create();
static void Destroy(BaseConnection*&);
bool isOpen{false};
bool Open();
bool Close();
bool Write(const void* data, size_t length);
bool Read(void* data, size_t length);
};

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src/connection_unix.cpp Normal file
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#include "connection.h"
#include <errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <string.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <sys/un.h>
#include <unistd.h>
int GetProcessId()
{
return ::getpid();
}
struct BaseConnectionUnix : public BaseConnection {
int sock{-1};
};
static BaseConnectionUnix Connection;
static sockaddr_un PipeAddr{};
#ifdef MSG_NOSIGNAL
static int MsgFlags = MSG_NOSIGNAL;
#else
static int MsgFlags = 0;
#endif
static const char* GetTempPath()
{
const char* temp = getenv("XDG_RUNTIME_DIR");
temp = temp ? temp : getenv("TMPDIR");
temp = temp ? temp : getenv("TMP");
temp = temp ? temp : getenv("TEMP");
temp = temp ? temp : "/tmp";
return temp;
}
/*static*/ BaseConnection* BaseConnection::Create()
{
PipeAddr.sun_family = AF_UNIX;
return &Connection;
}
/*static*/ void BaseConnection::Destroy(BaseConnection*& c)
{
auto self = reinterpret_cast<BaseConnectionUnix*>(c);
self->Close();
c = nullptr;
}
bool BaseConnection::Open()
{
const char* tempPath = GetTempPath();
auto self = reinterpret_cast<BaseConnectionUnix*>(this);
self->sock = socket(AF_UNIX, SOCK_STREAM, 0);
if (self->sock == -1) {
return false;
}
fcntl(self->sock, F_SETFL, O_NONBLOCK);
#ifdef SO_NOSIGPIPE
int optval = 1;
setsockopt(self->sock, SOL_SOCKET, SO_NOSIGPIPE, &optval, sizeof(optval));
#endif
for (int pipeNum = 0; pipeNum < 10; ++pipeNum) {
snprintf(
PipeAddr.sun_path, sizeof(PipeAddr.sun_path), "%s/discord-ipc-%d", tempPath, pipeNum);
int err = connect(self->sock, (const sockaddr*)&PipeAddr, sizeof(PipeAddr));
if (err == 0) {
self->isOpen = true;
return true;
}
}
self->Close();
return false;
}
bool BaseConnection::Close()
{
auto self = reinterpret_cast<BaseConnectionUnix*>(this);
if (self->sock == -1) {
return false;
}
close(self->sock);
self->sock = -1;
self->isOpen = false;
return true;
}
bool BaseConnection::Write(const void* data, size_t length)
{
auto self = reinterpret_cast<BaseConnectionUnix*>(this);
if (self->sock == -1) {
return false;
}
ssize_t sentBytes = send(self->sock, data, length, MsgFlags);
if (sentBytes < 0) {
Close();
}
return sentBytes == (ssize_t)length;
}
bool BaseConnection::Read(void* data, size_t length)
{
auto self = reinterpret_cast<BaseConnectionUnix*>(this);
if (self->sock == -1) {
return false;
}
int res = (int)recv(self->sock, data, length, MsgFlags);
if (res < 0) {
if (errno == EAGAIN) {
return false;
}
Close();
}
else if (res == 0) {
Close();
}
return res == (int)length;
}

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#include "connection.h"
#define WIN32_LEAN_AND_MEAN
#define NOMCX
#define NOSERVICE
#define NOIME
#include <assert.h>
#include <windows.h>
int GetProcessId()
{
return (int)::GetCurrentProcessId();
}
struct BaseConnectionWin : public BaseConnection {
HANDLE pipe{INVALID_HANDLE_VALUE};
};
static BaseConnectionWin Connection;
/*static*/ BaseConnection* BaseConnection::Create()
{
return &Connection;
}
/*static*/ void BaseConnection::Destroy(BaseConnection*& c)
{
auto self = reinterpret_cast<BaseConnectionWin*>(c);
self->Close();
c = nullptr;
}
bool BaseConnection::Open()
{
wchar_t pipeName[]{L"\\\\?\\pipe\\discord-ipc-0"};
const size_t pipeDigit = sizeof(pipeName) / sizeof(wchar_t) - 2;
pipeName[pipeDigit] = L'0';
auto self = reinterpret_cast<BaseConnectionWin*>(this);
for (;;) {
self->pipe = ::CreateFileW(
pipeName, GENERIC_READ | GENERIC_WRITE, 0, nullptr, OPEN_EXISTING, 0, nullptr);
if (self->pipe != INVALID_HANDLE_VALUE) {
self->isOpen = true;
return true;
}
auto lastError = GetLastError();
if (lastError == ERROR_FILE_NOT_FOUND) {
if (pipeName[pipeDigit] < L'9') {
pipeName[pipeDigit]++;
continue;
}
}
else if (lastError == ERROR_PIPE_BUSY) {
if (!WaitNamedPipeW(pipeName, 10000)) {
return false;
}
continue;
}
return false;
}
}
bool BaseConnection::Close()
{
auto self = reinterpret_cast<BaseConnectionWin*>(this);
::CloseHandle(self->pipe);
self->pipe = INVALID_HANDLE_VALUE;
self->isOpen = false;
return true;
}
bool BaseConnection::Write(const void* data, size_t length)
{
if (length == 0) {
return true;
}
auto self = reinterpret_cast<BaseConnectionWin*>(this);
assert(self);
if (!self) {
return false;
}
if (self->pipe == INVALID_HANDLE_VALUE) {
return false;
}
assert(data);
if (!data) {
return false;
}
const DWORD bytesLength = (DWORD)length;
DWORD bytesWritten = 0;
return ::WriteFile(self->pipe, data, bytesLength, &bytesWritten, nullptr) == TRUE &&
bytesWritten == bytesLength;
}
bool BaseConnection::Read(void* data, size_t length)
{
assert(data);
if (!data) {
return false;
}
auto self = reinterpret_cast<BaseConnectionWin*>(this);
assert(self);
if (!self) {
return false;
}
if (self->pipe == INVALID_HANDLE_VALUE) {
return false;
}
DWORD bytesAvailable = 0;
if (::PeekNamedPipe(self->pipe, nullptr, 0, nullptr, &bytesAvailable, nullptr)) {
if (bytesAvailable >= length) {
DWORD bytesToRead = (DWORD)length;
DWORD bytesRead = 0;
if (::ReadFile(self->pipe, data, bytesToRead, &bytesRead, nullptr) == TRUE) {
assert(bytesToRead == bytesRead);
return true;
}
else {
Close();
}
}
}
else {
Close();
}
return false;
}

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#include "discord_rpc.h"
#include "discord_register.h"
#include <stdio.h>
#include <errno.h>
#include <stdlib.h>
#include <string.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <unistd.h>
static bool Mkdir(const char* path)
{
int result = mkdir(path, 0755);
if (result == 0) {
return true;
}
if (errno == EEXIST) {
return true;
}
return false;
}
// we want to register games so we can run them from Discord client as discord-<appid>://
extern "C" DISCORD_EXPORT void Discord_Register(const char* applicationId, const char* command)
{
// Add a desktop file and update some mime handlers so that xdg-open does the right thing.
const char* home = getenv("HOME");
if (!home) {
return;
}
char exePath[1024];
if (!command || !command[0]) {
ssize_t size = readlink("/proc/self/exe", exePath, sizeof(exePath));
if (size <= 0 || size >= (ssize_t)sizeof(exePath)) {
return;
}
exePath[size] = '\0';
command = exePath;
}
const char* desktopFileFormat = "[Desktop Entry]\n"
"Name=Game %s\n"
"Exec=%s %%u\n" // note: it really wants that %u in there
"Type=Application\n"
"NoDisplay=true\n"
"Categories=Discord;Games;\n"
"MimeType=x-scheme-handler/discord-%s;\n";
char desktopFile[2048];
int fileLen = snprintf(
desktopFile, sizeof(desktopFile), desktopFileFormat, applicationId, command, applicationId);
if (fileLen <= 0) {
return;
}
char desktopFilename[256];
snprintf(desktopFilename, sizeof(desktopFilename), "/discord-%s.desktop", applicationId);
char desktopFilePath[1024];
snprintf(desktopFilePath, sizeof(desktopFilePath), "%s/.local", home);
if (!Mkdir(desktopFilePath)) {
return;
}
strcat(desktopFilePath, "/share");
if (!Mkdir(desktopFilePath)) {
return;
}
strcat(desktopFilePath, "/applications");
if (!Mkdir(desktopFilePath)) {
return;
}
strcat(desktopFilePath, desktopFilename);
FILE* fp = fopen(desktopFilePath, "w");
if (fp) {
fwrite(desktopFile, 1, fileLen, fp);
fclose(fp);
}
else {
return;
}
char xdgMimeCommand[1024];
snprintf(xdgMimeCommand,
sizeof(xdgMimeCommand),
"xdg-mime default discord-%s.desktop x-scheme-handler/discord-%s",
applicationId,
applicationId);
if (system(xdgMimeCommand) < 0) {
fprintf(stderr, "Failed to register mime handler\n");
}
}
extern "C" DISCORD_EXPORT void Discord_RegisterSteamGame(const char* applicationId,
const char* steamId)
{
char command[256];
sprintf(command, "xdg-open steam://rungameid/%s", steamId);
Discord_Register(applicationId, command);
}

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#include <stdio.h>
#include <sys/stat.h>
#import <AppKit/AppKit.h>
#include "discord_register.h"
static void RegisterCommand(const char* applicationId, const char* command)
{
// There does not appear to be a way to register arbitrary commands on OSX, so instead we'll save the command
// to a file in the Discord config path, and when it is needed, Discord can try to load the file there, open
// the command therein (will pass to js's window.open, so requires a url-like thing)
// Note: will not work for sandboxed apps
NSString *home = NSHomeDirectory();
if (!home) {
return;
}
NSString *path = [[[[[[home stringByAppendingPathComponent:@"Library"]
stringByAppendingPathComponent:@"Application Support"]
stringByAppendingPathComponent:@"discord"]
stringByAppendingPathComponent:@"games"]
stringByAppendingPathComponent:[NSString stringWithUTF8String:applicationId]]
stringByAppendingPathExtension:@"json"];
[[NSFileManager defaultManager] createDirectoryAtPath:[path stringByDeletingLastPathComponent] withIntermediateDirectories:YES attributes:nil error:nil];
NSString *jsonBuffer = [NSString stringWithFormat:@"{\"command\": \"%s\"}", command];
[jsonBuffer writeToFile:path atomically:NO encoding:NSUTF8StringEncoding error:nil];
}
static void RegisterURL(const char* applicationId)
{
char url[256];
snprintf(url, sizeof(url), "discord-%s", applicationId);
CFStringRef cfURL = CFStringCreateWithCString(NULL, url, kCFStringEncodingUTF8);
NSString* myBundleId = [[NSBundle mainBundle] bundleIdentifier];
if (!myBundleId) {
fprintf(stderr, "No bundle id found\n");
return;
}
NSURL* myURL = [[NSBundle mainBundle] bundleURL];
if (!myURL) {
fprintf(stderr, "No bundle url found\n");
return;
}
OSStatus status = LSSetDefaultHandlerForURLScheme(cfURL, (__bridge CFStringRef)myBundleId);
if (status != noErr) {
fprintf(stderr, "Error in LSSetDefaultHandlerForURLScheme: %d\n", (int)status);
return;
}
status = LSRegisterURL((__bridge CFURLRef)myURL, true);
if (status != noErr) {
fprintf(stderr, "Error in LSRegisterURL: %d\n", (int)status);
}
}
void Discord_Register(const char* applicationId, const char* command)
{
if (command) {
RegisterCommand(applicationId, command);
}
else {
// raii lite
@autoreleasepool {
RegisterURL(applicationId);
}
}
}
void Discord_RegisterSteamGame(const char* applicationId, const char* steamId)
{
char command[256];
snprintf(command, 256, "steam://rungameid/%s", steamId);
Discord_Register(applicationId, command);
}

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#include "discord_rpc.h"
#include "discord_register.h"
#define WIN32_LEAN_AND_MEAN
#define NOMCX
#define NOSERVICE
#define NOIME
#include <windows.h>
#include <psapi.h>
#include <cstdio>
/**
* Updated fixes for MinGW and WinXP
* This block is written the way it does not involve changing the rest of the code
* Checked to be compiling
* 1) strsafe.h belongs to Windows SDK and cannot be added to MinGW
* #include guarded, functions redirected to <string.h> substitutes
* 2) RegSetKeyValueW and LSTATUS are not declared in <winreg.h>
* The entire function is rewritten
*/
#ifdef __MINGW32__
#include <wchar.h>
/// strsafe.h fixes
static HRESULT StringCbPrintfW(LPWSTR pszDest, size_t cbDest, LPCWSTR pszFormat, ...)
{
HRESULT ret;
va_list va;
va_start(va, pszFormat);
cbDest /= 2; // Size is divided by 2 to convert from bytes to wide characters - causes segfault
// othervise
ret = vsnwprintf(pszDest, cbDest, pszFormat, va);
pszDest[cbDest - 1] = 0; // Terminate the string in case a buffer overflow; -1 will be returned
va_end(va);
return ret;
}
#else
#include <cwchar>
#include <strsafe.h>
#endif // __MINGW32__
/// winreg.h fixes
#ifndef LSTATUS
#define LSTATUS LONG
#endif
#ifdef RegSetKeyValueW
#undefine RegSetKeyValueW
#endif
#define RegSetKeyValueW regset
static LSTATUS regset(HKEY hkey,
LPCWSTR subkey,
LPCWSTR name,
DWORD type,
const void* data,
DWORD len)
{
HKEY htkey = hkey, hsubkey = nullptr;
LSTATUS ret;
if (subkey && subkey[0]) {
if ((ret = RegCreateKeyExW(hkey, subkey, 0, 0, 0, KEY_ALL_ACCESS, 0, &hsubkey, 0)) !=
ERROR_SUCCESS)
return ret;
htkey = hsubkey;
}
ret = RegSetValueExW(htkey, name, 0, type, (const BYTE*)data, len);
if (hsubkey && hsubkey != hkey)
RegCloseKey(hsubkey);
return ret;
}
static void Discord_RegisterW(const wchar_t* applicationId, const wchar_t* command)
{
// https://msdn.microsoft.com/en-us/library/aa767914(v=vs.85).aspx
// we want to register games so we can run them as discord-<appid>://
// Update the HKEY_CURRENT_USER, because it doesn't seem to require special permissions.
wchar_t exeFilePath[MAX_PATH];
DWORD exeLen = GetModuleFileNameW(nullptr, exeFilePath, MAX_PATH);
wchar_t openCommand[1024];
if (command && command[0]) {
StringCbPrintfW(openCommand, sizeof(openCommand), L"%s", command);
}
else {
// StringCbCopyW(openCommand, sizeof(openCommand), exeFilePath);
StringCbPrintfW(openCommand, sizeof(openCommand), L"%s", exeFilePath);
}
wchar_t protocolName[64];
StringCbPrintfW(protocolName, sizeof(protocolName), L"discord-%s", applicationId);
wchar_t protocolDescription[128];
StringCbPrintfW(
protocolDescription, sizeof(protocolDescription), L"URL:Run game %s protocol", applicationId);
wchar_t urlProtocol = 0;
wchar_t keyName[256];
StringCbPrintfW(keyName, sizeof(keyName), L"Software\\Classes\\%s", protocolName);
HKEY key;
auto status =
RegCreateKeyExW(HKEY_CURRENT_USER, keyName, 0, nullptr, 0, KEY_WRITE, nullptr, &key, nullptr);
if (status != ERROR_SUCCESS) {
fprintf(stderr, "Error creating key\n");
return;
}
DWORD len;
LSTATUS result;
len = (DWORD)lstrlenW(protocolDescription) + 1;
result =
RegSetKeyValueW(key, nullptr, nullptr, REG_SZ, protocolDescription, len * sizeof(wchar_t));
if (FAILED(result)) {
fprintf(stderr, "Error writing description\n");
}
len = (DWORD)lstrlenW(protocolDescription) + 1;
result = RegSetKeyValueW(key, nullptr, L"URL Protocol", REG_SZ, &urlProtocol, sizeof(wchar_t));
if (FAILED(result)) {
fprintf(stderr, "Error writing description\n");
}
result = RegSetKeyValueW(
key, L"DefaultIcon", nullptr, REG_SZ, exeFilePath, (exeLen + 1) * sizeof(wchar_t));
if (FAILED(result)) {
fprintf(stderr, "Error writing icon\n");
}
len = (DWORD)lstrlenW(openCommand) + 1;
result = RegSetKeyValueW(
key, L"shell\\open\\command", nullptr, REG_SZ, openCommand, len * sizeof(wchar_t));
if (FAILED(result)) {
fprintf(stderr, "Error writing command\n");
}
RegCloseKey(key);
}
extern "C" DISCORD_EXPORT void Discord_Register(const char* applicationId, const char* command)
{
wchar_t appId[32];
MultiByteToWideChar(CP_UTF8, 0, applicationId, -1, appId, 32);
wchar_t openCommand[1024];
const wchar_t* wcommand = nullptr;
if (command && command[0]) {
const auto commandBufferLen = sizeof(openCommand) / sizeof(*openCommand);
MultiByteToWideChar(CP_UTF8, 0, command, -1, openCommand, commandBufferLen);
wcommand = openCommand;
}
Discord_RegisterW(appId, wcommand);
}
extern "C" DISCORD_EXPORT void Discord_RegisterSteamGame(const char* applicationId,
const char* steamId)
{
wchar_t appId[32];
MultiByteToWideChar(CP_UTF8, 0, applicationId, -1, appId, 32);
wchar_t wSteamId[32];
MultiByteToWideChar(CP_UTF8, 0, steamId, -1, wSteamId, 32);
HKEY key;
auto status = RegOpenKeyExW(HKEY_CURRENT_USER, L"Software\\Valve\\Steam", 0, KEY_READ, &key);
if (status != ERROR_SUCCESS) {
fprintf(stderr, "Error opening Steam key\n");
return;
}
wchar_t steamPath[MAX_PATH];
DWORD pathBytes = sizeof(steamPath);
status = RegQueryValueExW(key, L"SteamExe", nullptr, nullptr, (BYTE*)steamPath, &pathBytes);
RegCloseKey(key);
if (status != ERROR_SUCCESS || pathBytes < 1) {
fprintf(stderr, "Error reading SteamExe key\n");
return;
}
DWORD pathChars = pathBytes / sizeof(wchar_t);
for (DWORD i = 0; i < pathChars; ++i) {
if (steamPath[i] == L'/') {
steamPath[i] = L'\\';
}
}
wchar_t command[1024];
StringCbPrintfW(command, sizeof(command), L"\"%s\" steam://rungameid/%s", steamPath, wSteamId);
Discord_RegisterW(appId, command);
}

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#include "discord_rpc.h"
#include "backoff.h"
#include "discord_register.h"
#include "msg_queue.h"
#include "rpc_connection.h"
#include "serialization.h"
#include <atomic>
#include <chrono>
#include <mutex>
#ifndef DISCORD_DISABLE_IO_THREAD
#include <condition_variable>
#include <thread>
#endif
constexpr size_t MaxMessageSize{16 * 1024};
constexpr size_t MessageQueueSize{8};
constexpr size_t JoinQueueSize{8};
struct QueuedMessage {
size_t length;
char buffer[MaxMessageSize];
void Copy(const QueuedMessage& other)
{
length = other.length;
if (length) {
memcpy(buffer, other.buffer, length);
}
}
};
struct User {
// snowflake (64bit int), turned into a ascii decimal string, at most 20 chars +1 null
// terminator = 21
char userId[32];
// 32 unicode glyphs is max name size => 4 bytes per glyph in the worst case, +1 for null
// terminator = 129
char username[344];
// 4 decimal digits + 1 null terminator = 5
char discriminator[8];
// optional 'a_' + md5 hex digest (32 bytes) + null terminator = 35
char avatar[128];
// Rounded way up because I'm paranoid about games breaking from future changes in these sizes
};
static RpcConnection* Connection{nullptr};
static DiscordEventHandlers QueuedHandlers{};
static DiscordEventHandlers Handlers{};
static std::atomic_bool WasJustConnected{false};
static std::atomic_bool WasJustDisconnected{false};
static std::atomic_bool GotErrorMessage{false};
static std::atomic_bool WasJoinGame{false};
static std::atomic_bool WasSpectateGame{false};
static std::atomic_bool UpdatePresence{false};
static char JoinGameSecret[256];
static char SpectateGameSecret[256];
static int LastErrorCode{0};
static char LastErrorMessage[256];
static int LastDisconnectErrorCode{0};
static char LastDisconnectErrorMessage[256];
static std::mutex PresenceMutex;
static std::mutex HandlerMutex;
static QueuedMessage QueuedPresence{};
static MsgQueue<QueuedMessage, MessageQueueSize> SendQueue;
static MsgQueue<User, JoinQueueSize> JoinAskQueue;
static User connectedUser;
// We want to auto connect, and retry on failure, but not as fast as possible. This does expoential
// backoff from 0.5 seconds to 1 minute
static Backoff ReconnectTimeMs(500, 60 * 1000);
static auto NextConnect = std::chrono::system_clock::now();
static int Pid{0};
static int Nonce{1};
#ifndef DISCORD_DISABLE_IO_THREAD
static void Discord_UpdateConnection(void);
class IoThreadHolder {
private:
std::atomic_bool keepRunning{true};
std::mutex waitForIOMutex;
std::condition_variable waitForIOActivity;
std::thread ioThread;
public:
void Start()
{
keepRunning.store(true);
ioThread = std::thread([&]() {
const std::chrono::duration<int64_t, std::milli> maxWait{500LL};
Discord_UpdateConnection();
while (keepRunning.load()) {
std::unique_lock<std::mutex> lock(waitForIOMutex);
waitForIOActivity.wait_for(lock, maxWait);
Discord_UpdateConnection();
}
});
}
void Notify() { waitForIOActivity.notify_all(); }
void Stop()
{
keepRunning.exchange(false);
Notify();
if (ioThread.joinable()) {
ioThread.join();
}
}
~IoThreadHolder() { Stop(); }
};
#else
class IoThreadHolder {
public:
void Start() {}
void Stop() {}
void Notify() {}
};
#endif // DISCORD_DISABLE_IO_THREAD
static IoThreadHolder* IoThread{nullptr};
static void UpdateReconnectTime()
{
NextConnect = std::chrono::system_clock::now() +
std::chrono::duration<int64_t, std::milli>{ReconnectTimeMs.nextDelay()};
}
#ifdef DISCORD_DISABLE_IO_THREAD
extern "C" DISCORD_EXPORT void Discord_UpdateConnection(void)
#else
static void Discord_UpdateConnection(void)
#endif
{
if (!Connection) {
return;
}
if (!Connection->IsOpen()) {
if (std::chrono::system_clock::now() >= NextConnect) {
UpdateReconnectTime();
Connection->Open();
}
}
else {
// reads
for (;;) {
JsonDocument message;
if (!Connection->Read(message)) {
break;
}
const char* evtName = GetStrMember(&message, "evt");
const char* nonce = GetStrMember(&message, "nonce");
if (nonce) {
// in responses only -- should use to match up response when needed.
if (evtName && strcmp(evtName, "ERROR") == 0) {
auto data = GetObjMember(&message, "data");
LastErrorCode = GetIntMember(data, "code");
StringCopy(LastErrorMessage, GetStrMember(data, "message", ""));
GotErrorMessage.store(true);
}
}
else {
// should have evt == name of event, optional data
if (evtName == nullptr) {
continue;
}
auto data = GetObjMember(&message, "data");
if (strcmp(evtName, "ACTIVITY_JOIN") == 0) {
auto secret = GetStrMember(data, "secret");
if (secret) {
StringCopy(JoinGameSecret, secret);
WasJoinGame.store(true);
}
}
else if (strcmp(evtName, "ACTIVITY_SPECTATE") == 0) {
auto secret = GetStrMember(data, "secret");
if (secret) {
StringCopy(SpectateGameSecret, secret);
WasSpectateGame.store(true);
}
}
else if (strcmp(evtName, "ACTIVITY_JOIN_REQUEST") == 0) {
auto user = GetObjMember(data, "user");
auto userId = GetStrMember(user, "id");
auto username = GetStrMember(user, "username");
auto avatar = GetStrMember(user, "avatar");
auto joinReq = JoinAskQueue.GetNextAddMessage();
if (userId && username && joinReq) {
StringCopy(joinReq->userId, userId);
StringCopy(joinReq->username, username);
auto discriminator = GetStrMember(user, "discriminator");
if (discriminator) {
StringCopy(joinReq->discriminator, discriminator);
}
if (avatar) {
StringCopy(joinReq->avatar, avatar);
}
else {
joinReq->avatar[0] = 0;
}
JoinAskQueue.CommitAdd();
}
}
}
}
// writes
if (UpdatePresence.exchange(false) && QueuedPresence.length) {
QueuedMessage local;
{
std::lock_guard<std::mutex> guard(PresenceMutex);
local.Copy(QueuedPresence);
}
if (!Connection->Write(local.buffer, local.length)) {
// if we fail to send, requeue
std::lock_guard<std::mutex> guard(PresenceMutex);
QueuedPresence.Copy(local);
UpdatePresence.exchange(true);
}
}
while (SendQueue.HavePendingSends()) {
auto qmessage = SendQueue.GetNextSendMessage();
Connection->Write(qmessage->buffer, qmessage->length);
SendQueue.CommitSend();
}
}
}
static void SignalIOActivity()
{
if (IoThread != nullptr) {
IoThread->Notify();
}
}
static bool RegisterForEvent(const char* evtName)
{
auto qmessage = SendQueue.GetNextAddMessage();
if (qmessage) {
qmessage->length =
JsonWriteSubscribeCommand(qmessage->buffer, sizeof(qmessage->buffer), Nonce++, evtName);
SendQueue.CommitAdd();
SignalIOActivity();
return true;
}
return false;
}
static bool DeregisterForEvent(const char* evtName)
{
auto qmessage = SendQueue.GetNextAddMessage();
if (qmessage) {
qmessage->length =
JsonWriteUnsubscribeCommand(qmessage->buffer, sizeof(qmessage->buffer), Nonce++, evtName);
SendQueue.CommitAdd();
SignalIOActivity();
return true;
}
return false;
}
extern "C" DISCORD_EXPORT void Discord_Initialize(const char* applicationId,
DiscordEventHandlers* handlers,
int autoRegister,
const char* optionalSteamId)
{
IoThread = new (std::nothrow) IoThreadHolder();
if (IoThread == nullptr) {
return;
}
if (autoRegister) {
if (optionalSteamId && optionalSteamId[0]) {
Discord_RegisterSteamGame(applicationId, optionalSteamId);
}
else {
Discord_Register(applicationId, nullptr);
}
}
Pid = GetProcessId();
{
std::lock_guard<std::mutex> guard(HandlerMutex);
if (handlers) {
QueuedHandlers = *handlers;
}
else {
QueuedHandlers = {};
}
Handlers = {};
}
if (Connection) {
return;
}
Connection = RpcConnection::Create(applicationId);
Connection->onConnect = [](JsonDocument& readyMessage) {
Discord_UpdateHandlers(&QueuedHandlers);
if (QueuedPresence.length > 0) {
UpdatePresence.exchange(true);
SignalIOActivity();
}
auto data = GetObjMember(&readyMessage, "data");
auto user = GetObjMember(data, "user");
auto userId = GetStrMember(user, "id");
auto username = GetStrMember(user, "username");
auto avatar = GetStrMember(user, "avatar");
if (userId && username) {
StringCopy(connectedUser.userId, userId);
StringCopy(connectedUser.username, username);
auto discriminator = GetStrMember(user, "discriminator");
if (discriminator) {
StringCopy(connectedUser.discriminator, discriminator);
}
if (avatar) {
StringCopy(connectedUser.avatar, avatar);
}
else {
connectedUser.avatar[0] = 0;
}
}
WasJustConnected.exchange(true);
ReconnectTimeMs.reset();
};
Connection->onDisconnect = [](int err, const char* message) {
LastDisconnectErrorCode = err;
StringCopy(LastDisconnectErrorMessage, message);
WasJustDisconnected.exchange(true);
UpdateReconnectTime();
};
IoThread->Start();
}
extern "C" DISCORD_EXPORT void Discord_Shutdown(void)
{
if (!Connection) {
return;
}
Connection->onConnect = nullptr;
Connection->onDisconnect = nullptr;
Handlers = {};
QueuedPresence.length = 0;
UpdatePresence.exchange(false);
if (IoThread != nullptr) {
IoThread->Stop();
delete IoThread;
IoThread = nullptr;
}
RpcConnection::Destroy(Connection);
}
extern "C" DISCORD_EXPORT void Discord_UpdatePresence(const DiscordRichPresence* presence)
{
{
std::lock_guard<std::mutex> guard(PresenceMutex);
QueuedPresence.length = JsonWriteRichPresenceObj(
QueuedPresence.buffer, sizeof(QueuedPresence.buffer), Nonce++, Pid, presence);
UpdatePresence.exchange(true);
}
SignalIOActivity();
}
extern "C" DISCORD_EXPORT void Discord_ClearPresence(void)
{
Discord_UpdatePresence(nullptr);
}
extern "C" DISCORD_EXPORT void Discord_Respond(const char* userId, /* DISCORD_REPLY_ */ int reply)
{
// if we are not connected, let's not batch up stale messages for later
if (!Connection || !Connection->IsOpen()) {
return;
}
auto qmessage = SendQueue.GetNextAddMessage();
if (qmessage) {
qmessage->length =
JsonWriteJoinReply(qmessage->buffer, sizeof(qmessage->buffer), userId, reply, Nonce++);
SendQueue.CommitAdd();
SignalIOActivity();
}
}
extern "C" DISCORD_EXPORT void Discord_RunCallbacks(void)
{
// Note on some weirdness: internally we might connect, get other signals, disconnect any number
// of times inbetween calls here. Externally, we want the sequence to seem sane, so any other
// signals are book-ended by calls to ready and disconnect.
if (!Connection) {
return;
}
bool wasDisconnected = WasJustDisconnected.exchange(false);
bool isConnected = Connection->IsOpen();
if (isConnected) {
// if we are connected, disconnect cb first
std::lock_guard<std::mutex> guard(HandlerMutex);
if (wasDisconnected && Handlers.disconnected) {
Handlers.disconnected(LastDisconnectErrorCode, LastDisconnectErrorMessage);
}
}
if (WasJustConnected.exchange(false)) {
std::lock_guard<std::mutex> guard(HandlerMutex);
if (Handlers.ready) {
DiscordUser du{connectedUser.userId,
connectedUser.username,
connectedUser.discriminator,
connectedUser.avatar};
Handlers.ready(&du);
}
}
if (GotErrorMessage.exchange(false)) {
std::lock_guard<std::mutex> guard(HandlerMutex);
if (Handlers.errored) {
Handlers.errored(LastErrorCode, LastErrorMessage);
}
}
if (WasJoinGame.exchange(false)) {
std::lock_guard<std::mutex> guard(HandlerMutex);
if (Handlers.joinGame) {
Handlers.joinGame(JoinGameSecret);
}
}
if (WasSpectateGame.exchange(false)) {
std::lock_guard<std::mutex> guard(HandlerMutex);
if (Handlers.spectateGame) {
Handlers.spectateGame(SpectateGameSecret);
}
}
// Right now this batches up any requests and sends them all in a burst; I could imagine a world
// where the implementer would rather sequentially accept/reject each one before the next invite
// is sent. I left it this way because I could also imagine wanting to process these all and
// maybe show them in one common dialog and/or start fetching the avatars in parallel, and if
// not it should be trivial for the implementer to make a queue themselves.
while (JoinAskQueue.HavePendingSends()) {
auto req = JoinAskQueue.GetNextSendMessage();
{
std::lock_guard<std::mutex> guard(HandlerMutex);
if (Handlers.joinRequest) {
DiscordUser du{req->userId, req->username, req->discriminator, req->avatar};
Handlers.joinRequest(&du);
}
}
JoinAskQueue.CommitSend();
}
if (!isConnected) {
// if we are not connected, disconnect message last
std::lock_guard<std::mutex> guard(HandlerMutex);
if (wasDisconnected && Handlers.disconnected) {
Handlers.disconnected(LastDisconnectErrorCode, LastDisconnectErrorMessage);
}
}
}
extern "C" DISCORD_EXPORT void Discord_UpdateHandlers(DiscordEventHandlers* newHandlers)
{
if (newHandlers) {
#define HANDLE_EVENT_REGISTRATION(handler_name, event) \
if (!Handlers.handler_name && newHandlers->handler_name) { \
RegisterForEvent(event); \
} \
else if (Handlers.handler_name && !newHandlers->handler_name) { \
DeregisterForEvent(event); \
}
std::lock_guard<std::mutex> guard(HandlerMutex);
HANDLE_EVENT_REGISTRATION(joinGame, "ACTIVITY_JOIN")
HANDLE_EVENT_REGISTRATION(spectateGame, "ACTIVITY_SPECTATE")
HANDLE_EVENT_REGISTRATION(joinRequest, "ACTIVITY_JOIN_REQUEST")
#undef HANDLE_EVENT_REGISTRATION
Handlers = *newHandlers;
}
else {
std::lock_guard<std::mutex> guard(HandlerMutex);
Handlers = {};
}
return;
}

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#include <windows.h>
// outsmart GCC's missing-declarations warning
BOOL WINAPI DllMain(HMODULE, DWORD, LPVOID);
BOOL WINAPI DllMain(HMODULE, DWORD, LPVOID)
{
return TRUE;
}

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#pragma once
#include <atomic>
// A simple queue. No locks, but only works with a single thread as producer and a single thread as
// a consumer. Mutex up as needed.
template <typename ElementType, size_t QueueSize>
class MsgQueue {
ElementType queue_[QueueSize];
std::atomic_uint nextAdd_{0};
std::atomic_uint nextSend_{0};
std::atomic_uint pendingSends_{0};
public:
MsgQueue() {}
ElementType* GetNextAddMessage()
{
// if we are falling behind, bail
if (pendingSends_.load() >= QueueSize) {
return nullptr;
}
auto index = (nextAdd_++) % QueueSize;
return &queue_[index];
}
void CommitAdd() { ++pendingSends_; }
bool HavePendingSends() const { return pendingSends_.load() != 0; }
ElementType* GetNextSendMessage()
{
auto index = (nextSend_++) % QueueSize;
return &queue_[index];
}
void CommitSend() { --pendingSends_; }
};

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#include "rpc_connection.h"
#include "serialization.h"
#include <atomic>
static const int RpcVersion = 1;
static RpcConnection Instance;
/*static*/ RpcConnection* RpcConnection::Create(const char* applicationId)
{
Instance.connection = BaseConnection::Create();
StringCopy(Instance.appId, applicationId);
return &Instance;
}
/*static*/ void RpcConnection::Destroy(RpcConnection*& c)
{
c->Close();
BaseConnection::Destroy(c->connection);
c = nullptr;
}
void RpcConnection::Open()
{
if (state == State::Connected) {
return;
}
if (state == State::Disconnected && !connection->Open()) {
return;
}
if (state == State::SentHandshake) {
JsonDocument message;
if (Read(message)) {
auto cmd = GetStrMember(&message, "cmd");
auto evt = GetStrMember(&message, "evt");
if (cmd && evt && !strcmp(cmd, "DISPATCH") && !strcmp(evt, "READY")) {
state = State::Connected;
if (onConnect) {
onConnect(message);
}
}
}
}
else {
sendFrame.opcode = Opcode::Handshake;
sendFrame.length = (uint32_t)JsonWriteHandshakeObj(
sendFrame.message, sizeof(sendFrame.message), RpcVersion, appId);
if (connection->Write(&sendFrame, sizeof(MessageFrameHeader) + sendFrame.length)) {
state = State::SentHandshake;
}
else {
Close();
}
}
}
void RpcConnection::Close()
{
if (onDisconnect && (state == State::Connected || state == State::SentHandshake)) {
onDisconnect(lastErrorCode, lastErrorMessage);
}
connection->Close();
state = State::Disconnected;
}
bool RpcConnection::Write(const void* data, size_t length)
{
sendFrame.opcode = Opcode::Frame;
memcpy(sendFrame.message, data, length);
sendFrame.length = (uint32_t)length;
if (!connection->Write(&sendFrame, sizeof(MessageFrameHeader) + length)) {
Close();
return false;
}
return true;
}
bool RpcConnection::Read(JsonDocument& message)
{
if (state != State::Connected && state != State::SentHandshake) {
return false;
}
MessageFrame readFrame;
for (;;) {
bool didRead = connection->Read(&readFrame, sizeof(MessageFrameHeader));
if (!didRead) {
if (!connection->isOpen) {
lastErrorCode = (int)ErrorCode::PipeClosed;
StringCopy(lastErrorMessage, "Pipe closed");
Close();
}
return false;
}
if (readFrame.length > 0) {
didRead = connection->Read(readFrame.message, readFrame.length);
if (!didRead) {
lastErrorCode = (int)ErrorCode::ReadCorrupt;
StringCopy(lastErrorMessage, "Partial data in frame");
Close();
return false;
}
readFrame.message[readFrame.length] = 0;
}
switch (readFrame.opcode) {
case Opcode::Close: {
message.ParseInsitu(readFrame.message);
lastErrorCode = GetIntMember(&message, "code");
StringCopy(lastErrorMessage, GetStrMember(&message, "message", ""));
Close();
return false;
}
case Opcode::Frame:
message.ParseInsitu(readFrame.message);
return true;
case Opcode::Ping:
readFrame.opcode = Opcode::Pong;
if (!connection->Write(&readFrame, sizeof(MessageFrameHeader) + readFrame.length)) {
Close();
}
break;
case Opcode::Pong:
break;
case Opcode::Handshake:
default:
// something bad happened
lastErrorCode = (int)ErrorCode::ReadCorrupt;
StringCopy(lastErrorMessage, "Bad ipc frame");
Close();
return false;
}
}
}

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#pragma once
#include "connection.h"
#include "serialization.h"
// I took this from the buffer size libuv uses for named pipes; I suspect ours would usually be much
// smaller.
constexpr size_t MaxRpcFrameSize = 64 * 1024;
struct RpcConnection {
enum class ErrorCode : int {
Success = 0,
PipeClosed = 1,
ReadCorrupt = 2,
};
enum class Opcode : uint32_t {
Handshake = 0,
Frame = 1,
Close = 2,
Ping = 3,
Pong = 4,
};
struct MessageFrameHeader {
Opcode opcode;
uint32_t length;
};
struct MessageFrame : public MessageFrameHeader {
char message[MaxRpcFrameSize - sizeof(MessageFrameHeader)];
};
enum class State : uint32_t {
Disconnected,
SentHandshake,
AwaitingResponse,
Connected,
};
BaseConnection* connection{nullptr};
State state{State::Disconnected};
void (*onConnect)(JsonDocument& message){nullptr};
void (*onDisconnect)(int errorCode, const char* message){nullptr};
char appId[64]{};
int lastErrorCode{0};
char lastErrorMessage[256]{};
RpcConnection::MessageFrame sendFrame;
static RpcConnection* Create(const char* applicationId);
static void Destroy(RpcConnection*&);
inline bool IsOpen() const { return state == State::Connected; }
void Open();
void Close();
bool Write(const void* data, size_t length);
bool Read(JsonDocument& message);
};

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#include "serialization.h"
#include "connection.h"
#include "discord_rpc.h"
template <typename T>
void NumberToString(char* dest, T number)
{
if (!number) {
*dest++ = '0';
*dest++ = 0;
return;
}
if (number < 0) {
*dest++ = '-';
number = -number;
}
char temp[32];
int place = 0;
while (number) {
auto digit = number % 10;
number = number / 10;
temp[place++] = '0' + (char)digit;
}
for (--place; place >= 0; --place) {
*dest++ = temp[place];
}
*dest = 0;
}
// it's ever so slightly faster to not have to strlen the key
template <typename T>
void WriteKey(JsonWriter& w, T& k)
{
w.Key(k, sizeof(T) - 1);
}
struct WriteObject {
JsonWriter& writer;
WriteObject(JsonWriter& w)
: writer(w)
{
writer.StartObject();
}
template <typename T>
WriteObject(JsonWriter& w, T& name)
: writer(w)
{
WriteKey(writer, name);
writer.StartObject();
}
~WriteObject() { writer.EndObject(); }
};
struct WriteArray {
JsonWriter& writer;
template <typename T>
WriteArray(JsonWriter& w, T& name)
: writer(w)
{
WriteKey(writer, name);
writer.StartArray();
}
~WriteArray() { writer.EndArray(); }
};
template <typename T>
void WriteOptionalString(JsonWriter& w, T& k, const char* value)
{
if (value && value[0]) {
w.Key(k, sizeof(T) - 1);
w.String(value);
}
}
static void JsonWriteNonce(JsonWriter& writer, int nonce)
{
WriteKey(writer, "nonce");
char nonceBuffer[32];
NumberToString(nonceBuffer, nonce);
writer.String(nonceBuffer);
}
size_t JsonWriteRichPresenceObj(char* dest,
size_t maxLen,
int nonce,
int pid,
const DiscordRichPresence* presence)
{
JsonWriter writer(dest, maxLen);
{
WriteObject top(writer);
JsonWriteNonce(writer, nonce);
WriteKey(writer, "cmd");
writer.String("SET_ACTIVITY");
{
WriteObject args(writer, "args");
WriteKey(writer, "pid");
writer.Int(pid);
if (presence != nullptr) {
WriteObject activity(writer, "activity");
WriteOptionalString(writer, "state", presence->state);
WriteOptionalString(writer, "details", presence->details);
if (presence->startTimestamp || presence->endTimestamp) {
WriteObject timestamps(writer, "timestamps");
if (presence->startTimestamp) {
WriteKey(writer, "start");
writer.Int64(presence->startTimestamp);
}
if (presence->endTimestamp) {
WriteKey(writer, "end");
writer.Int64(presence->endTimestamp);
}
}
if ((presence->largeImageKey && presence->largeImageKey[0]) ||
(presence->largeImageText && presence->largeImageText[0]) ||
(presence->smallImageKey && presence->smallImageKey[0]) ||
(presence->smallImageText && presence->smallImageText[0])) {
WriteObject assets(writer, "assets");
WriteOptionalString(writer, "large_image", presence->largeImageKey);
WriteOptionalString(writer, "large_text", presence->largeImageText);
WriteOptionalString(writer, "small_image", presence->smallImageKey);
WriteOptionalString(writer, "small_text", presence->smallImageText);
}
if ((presence->partyId && presence->partyId[0]) || presence->partySize ||
presence->partyMax || presence->partyPrivacy) {
WriteObject party(writer, "party");
WriteOptionalString(writer, "id", presence->partyId);
if (presence->partySize && presence->partyMax) {
WriteArray size(writer, "size");
writer.Int(presence->partySize);
writer.Int(presence->partyMax);
}
if (presence->partyPrivacy) {
WriteKey(writer, "privacy");
writer.Int(presence->partyPrivacy);
}
}
if ((presence->matchSecret && presence->matchSecret[0]) ||
(presence->joinSecret && presence->joinSecret[0]) ||
(presence->spectateSecret && presence->spectateSecret[0])) {
WriteObject secrets(writer, "secrets");
WriteOptionalString(writer, "match", presence->matchSecret);
WriteOptionalString(writer, "join", presence->joinSecret);
WriteOptionalString(writer, "spectate", presence->spectateSecret);
}
writer.Key("instance");
writer.Bool(presence->instance != 0);
}
}
}
return writer.Size();
}
size_t JsonWriteHandshakeObj(char* dest, size_t maxLen, int version, const char* applicationId)
{
JsonWriter writer(dest, maxLen);
{
WriteObject obj(writer);
WriteKey(writer, "v");
writer.Int(version);
WriteKey(writer, "client_id");
writer.String(applicationId);
}
return writer.Size();
}
size_t JsonWriteSubscribeCommand(char* dest, size_t maxLen, int nonce, const char* evtName)
{
JsonWriter writer(dest, maxLen);
{
WriteObject obj(writer);
JsonWriteNonce(writer, nonce);
WriteKey(writer, "cmd");
writer.String("SUBSCRIBE");
WriteKey(writer, "evt");
writer.String(evtName);
}
return writer.Size();
}
size_t JsonWriteUnsubscribeCommand(char* dest, size_t maxLen, int nonce, const char* evtName)
{
JsonWriter writer(dest, maxLen);
{
WriteObject obj(writer);
JsonWriteNonce(writer, nonce);
WriteKey(writer, "cmd");
writer.String("UNSUBSCRIBE");
WriteKey(writer, "evt");
writer.String(evtName);
}
return writer.Size();
}
size_t JsonWriteJoinReply(char* dest, size_t maxLen, const char* userId, int reply, int nonce)
{
JsonWriter writer(dest, maxLen);
{
WriteObject obj(writer);
WriteKey(writer, "cmd");
if (reply == DISCORD_REPLY_YES) {
writer.String("SEND_ACTIVITY_JOIN_INVITE");
}
else {
writer.String("CLOSE_ACTIVITY_JOIN_REQUEST");
}
WriteKey(writer, "args");
{
WriteObject args(writer);
WriteKey(writer, "user_id");
writer.String(userId);
}
JsonWriteNonce(writer, nonce);
}
return writer.Size();
}

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#pragma once
#include <stdint.h>
#ifndef __MINGW32__
#pragma warning(push)
#pragma warning(disable : 4061) // enum is not explicitly handled by a case label
#pragma warning(disable : 4365) // signed/unsigned mismatch
#pragma warning(disable : 4464) // relative include path contains
#pragma warning(disable : 4668) // is not defined as a preprocessor macro
#pragma warning(disable : 6313) // Incorrect operator
#endif // __MINGW32__
#include "rapidjson/document.h"
#include "rapidjson/stringbuffer.h"
#include "rapidjson/writer.h"
#ifndef __MINGW32__
#pragma warning(pop)
#endif // __MINGW32__
// if only there was a standard library function for this
template <size_t Len>
inline size_t StringCopy(char (&dest)[Len], const char* src)
{
if (!src || !Len) {
return 0;
}
size_t copied;
char* out = dest;
for (copied = 1; *src && copied < Len; ++copied) {
*out++ = *src++;
}
*out = 0;
return copied - 1;
}
size_t JsonWriteHandshakeObj(char* dest, size_t maxLen, int version, const char* applicationId);
// Commands
struct DiscordRichPresence;
size_t JsonWriteRichPresenceObj(char* dest,
size_t maxLen,
int nonce,
int pid,
const DiscordRichPresence* presence);
size_t JsonWriteSubscribeCommand(char* dest, size_t maxLen, int nonce, const char* evtName);
size_t JsonWriteUnsubscribeCommand(char* dest, size_t maxLen, int nonce, const char* evtName);
size_t JsonWriteJoinReply(char* dest, size_t maxLen, const char* userId, int reply, int nonce);
// I want to use as few allocations as I can get away with, and to do that with RapidJson, you need
// to supply some of your own allocators for stuff rather than use the defaults
class LinearAllocator {
public:
char* buffer_;
char* end_;
LinearAllocator()
{
assert(0); // needed for some default case in rapidjson, should not use
}
LinearAllocator(char* buffer, size_t size)
: buffer_(buffer)
, end_(buffer + size)
{
}
static const bool kNeedFree = false;
void* Malloc(size_t size)
{
char* res = buffer_;
buffer_ += size;
if (buffer_ > end_) {
buffer_ = res;
return nullptr;
}
return res;
}
void* Realloc(void* originalPtr, size_t originalSize, size_t newSize)
{
if (newSize == 0) {
return nullptr;
}
// allocate how much you need in the first place
assert(!originalPtr && !originalSize);
// unused parameter warning
(void)(originalPtr);
(void)(originalSize);
return Malloc(newSize);
}
static void Free(void* ptr)
{
/* shrug */
(void)ptr;
}
};
template <size_t Size>
class FixedLinearAllocator : public LinearAllocator {
public:
char fixedBuffer_[Size];
FixedLinearAllocator()
: LinearAllocator(fixedBuffer_, Size)
{
}
static const bool kNeedFree = false;
};
// wonder why this isn't a thing already, maybe I missed it
class DirectStringBuffer {
public:
using Ch = char;
char* buffer_;
char* end_;
char* current_;
DirectStringBuffer(char* buffer, size_t maxLen)
: buffer_(buffer)
, end_(buffer + maxLen)
, current_(buffer)
{
}
void Put(char c)
{
if (current_ < end_) {
*current_++ = c;
}
}
void Flush() {}
size_t GetSize() const { return (size_t)(current_ - buffer_); }
};
using MallocAllocator = rapidjson::CrtAllocator;
using PoolAllocator = rapidjson::MemoryPoolAllocator<MallocAllocator>;
using UTF8 = rapidjson::UTF8<char>;
// Writer appears to need about 16 bytes per nested object level (with 64bit size_t)
using StackAllocator = FixedLinearAllocator<2048>;
constexpr size_t WriterNestingLevels = 2048 / (2 * sizeof(size_t));
using JsonWriterBase =
rapidjson::Writer<DirectStringBuffer, UTF8, UTF8, StackAllocator, rapidjson::kWriteNoFlags>;
class JsonWriter : public JsonWriterBase {
public:
DirectStringBuffer stringBuffer_;
StackAllocator stackAlloc_;
JsonWriter(char* dest, size_t maxLen)
: JsonWriterBase(stringBuffer_, &stackAlloc_, WriterNestingLevels)
, stringBuffer_(dest, maxLen)
, stackAlloc_()
{
}
size_t Size() const { return stringBuffer_.GetSize(); }
};
using JsonDocumentBase = rapidjson::GenericDocument<UTF8, PoolAllocator, StackAllocator>;
class JsonDocument : public JsonDocumentBase {
public:
static const int kDefaultChunkCapacity = 32 * 1024;
// json parser will use this buffer first, then allocate more if needed; I seriously doubt we
// send any messages that would use all of this, though.
char parseBuffer_[32 * 1024];
MallocAllocator mallocAllocator_;
PoolAllocator poolAllocator_;
StackAllocator stackAllocator_;
JsonDocument()
: JsonDocumentBase(rapidjson::kObjectType,
&poolAllocator_,
sizeof(stackAllocator_.fixedBuffer_),
&stackAllocator_)
, poolAllocator_(parseBuffer_, sizeof(parseBuffer_), kDefaultChunkCapacity, &mallocAllocator_)
, stackAllocator_()
{
}
};
using JsonValue = rapidjson::GenericValue<UTF8, PoolAllocator>;
inline JsonValue* GetObjMember(JsonValue* obj, const char* name)
{
if (obj) {
auto member = obj->FindMember(name);
if (member != obj->MemberEnd() && member->value.IsObject()) {
return &member->value;
}
}
return nullptr;
}
inline int GetIntMember(JsonValue* obj, const char* name, int notFoundDefault = 0)
{
if (obj) {
auto member = obj->FindMember(name);
if (member != obj->MemberEnd() && member->value.IsInt()) {
return member->value.GetInt();
}
}
return notFoundDefault;
}
inline const char* GetStrMember(JsonValue* obj,
const char* name,
const char* notFoundDefault = nullptr)
{
if (obj) {
auto member = obj->FindMember(name);
if (member != obj->MemberEnd() && member->value.IsString()) {
return member->value.GetString();
}
}
return notFoundDefault;
}