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Deps: Remove discord-rpc from in-tree

This commit is contained in:
Stenzek 2024-07-04 14:49:12 +10:00
parent e59e93696b
commit 4bc9fd7574
No known key found for this signature in database
20 changed files with 0 additions and 2111 deletions
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33
dep/discord-rpc/CMakeLists.txt
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@ -1,33 +0,0 @@
set(SRCS
include/discord_register.h
include/discord_rpc.h
src/backoff.h
src/connection.h
src/discord_rpc.cpp
src/msg_queue.h
src/rpc_connection.cpp
src/rpc_connection.h
src/serialization.cpp
src/serialization.h
)
add_library(discord-rpc ${SRCS})
target_include_directories(discord-rpc PUBLIC "${CMAKE_CURRENT_SOURCE_DIR}/include")
target_link_libraries(discord-rpc rapidjson)
if(WIN32)
target_sources(discord-rpc PRIVATE
src/connection_win.cpp
src/discord_register_win.cpp
)
elseif(APPLE)
target_sources(discord-rpc PRIVATE
src/connection_unix.cpp
src/discord_register_osx.m
)
elseif(LINUX OR FREEBSD)
target_sources(discord-rpc PRIVATE
src/connection_unix.cpp
src/discord_register_linux.cpp
)
endif()

19
dep/discord-rpc/LICENSE
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@ -1,19 +0,0 @@
Copyright 2017 Discord, Inc.
Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the "Software"), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
of the Software, and to permit persons to whom the Software is furnished to do
so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

36
dep/discord-rpc/discord-rpc.vcxproj
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@ -1,36 +0,0 @@
<?xml version="1.0" encoding="utf-8"?>
<Project ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
<Import Project="..\msvc\vsprops\Configurations.props" />
<ItemGroup>
<ClInclude Include="include\discord_register.h" />
<ClInclude Include="include\discord_rpc.h" />
<ClInclude Include="src\backoff.h" />
<ClInclude Include="src\connection.h" />
<ClInclude Include="src\msg_queue.h" />
<ClInclude Include="src\rpc_connection.h" />
<ClInclude Include="src\serialization.h" />
</ItemGroup>
<ItemGroup>
<ClCompile Include="src\connection_win.cpp" />
<ClCompile Include="src\discord_register_win.cpp" />
<ClCompile Include="src\discord_rpc.cpp" />
<ClCompile Include="src\rpc_connection.cpp" />
<ClCompile Include="src\serialization.cpp" />
</ItemGroup>
<PropertyGroup Label="Globals">
<ProjectGuid>{4266505B-DBAF-484B-AB31-B53B9C8235B3}</ProjectGuid>
</PropertyGroup>
<Import Project="..\msvc\vsprops\StaticLibrary.props" />
<ItemDefinitionGroup>
<ClCompile>
<WarningLevel>TurnOffAllWarnings</WarningLevel>
<AdditionalIncludeDirectories>$(SolutionDir)dep\rapidjson\include;$(ProjectDir)include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
</ClCompile>
</ItemDefinitionGroup>
<Import Project="..\msvc\vsprops\Targets.props" />
</Project>

19
dep/discord-rpc/discord-rpc.vcxproj.filters
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@ -1,19 +0,0 @@
<?xml version="1.0" encoding="utf-8"?>
<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
<ItemGroup>
<ClInclude Include="include\discord_rpc.h" />
<ClInclude Include="include\discord_register.h" />
<ClInclude Include="src\connection.h" />
<ClInclude Include="src\msg_queue.h" />
<ClInclude Include="src\rpc_connection.h" />
<ClInclude Include="src\serialization.h" />
<ClInclude Include="src\backoff.h" />
</ItemGroup>
<ItemGroup>
<ClCompile Include="src\connection_win.cpp" />
<ClCompile Include="src\discord_register_win.cpp" />
<ClCompile Include="src\discord_rpc.cpp" />
<ClCompile Include="src\rpc_connection.cpp" />
<ClCompile Include="src\serialization.cpp" />
</ItemGroup>
</Project>

26
dep/discord-rpc/include/discord_register.h
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@ -1,26 +0,0 @@
#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

87
dep/discord-rpc/include/discord_rpc.h
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@ -1,87 +0,0 @@
#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;
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
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

40
dep/discord-rpc/src/backoff.h
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@ -1,40 +0,0 @@
#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;
}
};

19
dep/discord-rpc/src/connection.h
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@ -1,19 +0,0 @@
#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);
};

125
dep/discord-rpc/src/connection_unix.cpp
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@ -1,125 +0,0 @@
#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;
}

128
dep/discord-rpc/src/connection_win.cpp
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@ -1,128 +0,0 @@
#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;
}

102
dep/discord-rpc/src/discord_register_linux.cpp
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@ -1,102 +0,0 @@
#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);
}

80
dep/discord-rpc/src/discord_register_osx.m
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@ -1,80 +0,0 @@
#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);
}

186
dep/discord-rpc/src/discord_register_win.cpp
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@ -1,186 +0,0 @@
#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);
}

511
dep/discord-rpc/src/discord_rpc.cpp
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@ -1,511 +0,0 @@
#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 = {};
if (IoThread != nullptr) {
IoThread->Stop();
delete IoThread;
IoThread = nullptr;
}
// HACK: We need to send the updated (cleared) presence, but we're shutting down.
// Force an update, wait 100ms for it to clear (hopefully this will be long enough), and get any responses.
Discord_UpdateConnection();
std::this_thread::sleep_for(std::chrono::milliseconds(100));
Discord_UpdateConnection();
QueuedPresence.length = 0;
UpdatePresence.exchange(false);
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;
}

8
dep/discord-rpc/src/dllmain.cpp
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@ -1,8 +0,0 @@
#include <windows.h>
// outsmart GCC's missing-declarations warning
BOOL WINAPI DllMain(HMODULE, DWORD, LPVOID);
BOOL WINAPI DllMain(HMODULE, DWORD, LPVOID)
{
return TRUE;
}

36
dep/discord-rpc/src/msg_queue.h
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@ -1,36 +0,0 @@
#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_; }
};

137
dep/discord-rpc/src/rpc_connection.cpp
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@ -1,137 +0,0 @@
#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;
}
}
}

59
dep/discord-rpc/src/rpc_connection.h
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@ -1,59 +0,0 @@
#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);
};

245
dep/discord-rpc/src/serialization.cpp
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@ -1,245 +0,0 @@
#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) {
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->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();
}

215
dep/discord-rpc/src/serialization.h
View File

@ -1,215 +0,0 @@
#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;
}