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Gobligine/gameheaders/stratagus-game-launcher.h
Tim Felgentreff 5e1380c8c5 make the normal game extraction boxes less scary
2019-05-01 09:18:46 +02:00

650 lines
19 KiB
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/*
_________ __ __
/ _____// |_____________ _/ |______ ____ __ __ ______
\_____ \\ __\_ __ \__ \\ __\__ \ / ___\| | \/ ___/
/ \| | | | \// __ \| | / __ \_/ /_/ > | /\___ |
/_______ /|__| |__| (____ /__| (____ /\___ /|____//____ >
\/ \/ \//_____/ \/
______________________ ______________________
T H E W A R B E G I N S
Stratagus - A free fantasy real time strategy game engine
stratagus-game-launcher.h - Stratagus Game Launcher
Copyright (C) 2010-2011 Pali Rohár <pali.rohar@gmail.com>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* @page GameLauncher Stratagus Game Launcher
*
* Stratagus Game Launcher is C code for generating launcher for any Stratagus game.
* Game launcher for concrete game check if game data exists in default Stratagus
* location and spawn Stratagus process with correct game data location. If does not
* exist it show GUI or console error message.
*
* Before including this header, you need to define:
*
* ::GAME_NAME
*
* ::GAME_CD
*
* ::GAME_CD_FILE_PATTERNS
*
* ::GAME
*
* ::EXTRACTOR_TOOL
*
* ::EXTRACTOR_ARGS
*
* On Non Windows system you need to specify also paths:
*
* ::DATA_PATH
*
* ::SCRIPTS_PATH
*
* ::STRATAGUS_BIN
*
* On Windows paths are reading from InstallLocation key in Uninstall section:
* Software\\Microsoft\\Windows\\CurrentVersion\\Uninstall\\Stratagus
*
* Example use of code:
*
* @code
*
* #define GAME_NAME "My Game Name"
* #define GAME_CD "Original Game CD Name"
* #define GAME "my_game"
* #define GAME_CD_FILE_PATTERNS "*.WAR", "*.war"
* #define EXTRACTOR_TOOL "gametool"
* #define EXTRACTOR_ARGS "-v"
*
* #ifndef WIN32
* #define DATA_PATH "/usr/share/games/stratagus/my_game"
* #define SCRIPTS_PATH "/usr/share/games/stratagus/my_game"
* #define STRATAGUS_BIN "/usr/games/stratagus"
* #endif
*
* #include <stratagus-game-launcher.h>
*
* @endcode
**/
/**
* \def GAME_NAME
* Full name of your Game
**/
/**
* \def GAME_CD
* Full name of data CD
**/
/**
* \def GAME_CD_FILE_PATTERNS
* Comma-separated file patterns for the extraction wizard to help users select
* the right folder.
**/
/**
* \def GAME
* Short name of game (lower ascii chars without space)
**/
/**
* \def EXTRACTOR_TOOL
* The name of the game data extractor tool. This code will append the
* arguments, src, and destionation directories.
**/
/**
* \def EXTRACTOR_ARGS
* The default arguments of the game data extractor tool.
**/
/**
* \def DATA_PATH
* Path to game data directory
**/
/**
* \def SCRIPTS_PATH
* Path to game scripts directory
**/
/**
* \def STRATAGUS_BIN
* Path to stratagus executable binary
**/
/* Fake definitions for Doxygen */
#ifdef DOXYGEN
#define GAME_NAME
#define GAME_CD
#define GAME
#define DATA_PATH
#define SCRIPTS_PATH
#define STRATAGUS_BIN
#endif
#if ! defined (GAME_NAME) || ! defined (GAME_CD) || ! defined (GAME) || ! defined(EXTRACTOR_TOOL)
#error You need to define all Game macros, see stratagus-game-launcher.h
#endif
#ifndef GAME_SHOULD_EXTRACT_AGAIN
#define GAME_SHOULD_EXTRACT_AGAIN false
#endif
/**
* \def TITLE_PNG
* OPTIONAL: Path to title screen (for testing if data was extracted)
**/
#ifndef TITLE_PNG
#ifdef WIN32
#define TITLE_PNG "%s\\graphics\\ui\\title.png"
#else
#define TITLE_PNG "%s/graphics/ui/title.png"
#endif
#endif
#ifndef WIN32
#if ! defined (DATA_PATH) || ! defined (SCRIPTS_PATH) || ! defined (STRATAGUS_BIN)
#error You need to define paths, see stratagus-game-launcher.h
#endif
#pragma GCC diagnostic ignored "-Wwrite-strings"
#endif
#ifdef _MSC_VER
#pragma comment(linker, "/SUBSYSTEM:WINDOWS /ENTRY:mainCRTStartup")
#endif
#ifdef _WIN64
#define REGKEY "Software\\Wow6432Node\\Microsoft\\Windows\\CurrentVersion\\Uninstall\\Stratagus (64 bit)"
#elif defined (WIN32)
#define REGKEY "Software\\Microsoft\\Windows\\CurrentVersion\\Uninstall\\Stratagus"
#endif
#define TITLE GAME_NAME
#define STRATAGUS_NOT_FOUND "Stratagus is not installed.\nYou need Stratagus to run " GAME_NAME "!\nFirst install Stratagus from https://launchpad.net/stratagus"
#define DATA_NOT_EXTRACTED GAME_NAME " data was not extracted, is corrupted, or outdated.\nYou need to extract it from original " GAME_CD "."
#include "stratagus-gameutils.h"
static void SetUserDataPath(char* data_path) {
#if defined(WIN32)
strcpy(data_path, getenv("APPDATA"));
#else
strcpy(data_path, getenv("HOME"));
#endif
int datalen = strlen(data_path);
#if defined(WIN32)
strcat(data_path, "\\Stratagus\\");
#elif defined(USE_MAC)
strcat(data_path, "/Library/Stratagus/");
#else
strcat(data_path, "/.stratagus/");
#endif
strcat(data_path, "data." GAME_NAME);
}
int check_version(char* tool_path, char* data_path) {
char buf[4096] = {'\0'};
sprintf(buf, "%s/extracted" , data_path);
FILE *f = fopen(buf, "r");
char dataversion[20] = {'\0'};
char toolversion[20] = {'\0'};
if (f) {
fgets(dataversion, 20, f);
fclose(f);
} else {
#ifdef CHECK_EXTRACTED_VERSION
return 0; // No file means we have a problem
#else
return 1; // No file means we don't care
#endif
}
#ifndef WIN32
sprintf(buf, "%s -V", tool_path);
FILE *pipe = popen(buf, "r");
if (f) {
fgets(toolversion, 20, pipe);
pclose(pipe);
}
#else
sprintf(buf, "%s -V", tool_path); // tool_path is already quoted
HANDLE g_hChildStd_OUT_Rd = NULL;
HANDLE g_hChildStd_OUT_Wr = NULL;
SECURITY_ATTRIBUTES saAttr;
saAttr.nLength = sizeof(SECURITY_ATTRIBUTES);
saAttr.bInheritHandle = TRUE;
saAttr.lpSecurityDescriptor = NULL;
if (!CreatePipe(&g_hChildStd_OUT_Rd, &g_hChildStd_OUT_Wr, &saAttr, 0))
return 1;
if (!SetHandleInformation(g_hChildStd_OUT_Rd, HANDLE_FLAG_INHERIT, 0))
return 1;
PROCESS_INFORMATION piProcInfo;
STARTUPINFO siStartInfo;
ZeroMemory(&piProcInfo, sizeof(PROCESS_INFORMATION));
ZeroMemory(&siStartInfo, sizeof(STARTUPINFO));
siStartInfo.cb = sizeof(STARTUPINFO);
siStartInfo.hStdError = g_hChildStd_OUT_Wr;
siStartInfo.hStdOutput = g_hChildStd_OUT_Wr;
siStartInfo.dwFlags |= STARTF_USESTDHANDLES;
if (!CreateProcess(NULL, buf, NULL, NULL, TRUE, 0, NULL, NULL, &siStartInfo, &piProcInfo))
return 1;
CloseHandle(piProcInfo.hProcess);
CloseHandle(piProcInfo.hThread);
ReadFile(g_hChildStd_OUT_Rd, toolversion, 20, NULL, NULL);
#endif
// strip whitespace
for (size_t i=0, j=0; toolversion[j]=toolversion[i]; j+=!isspace(toolversion[i++]));
for (size_t i=0, j=0; dataversion[j]=dataversion[i]; j+=!isspace(dataversion[i++]));
if (strcmp(dataversion, toolversion) == 0) {
return 1;
}
return 0;
}
static void ExtractData(char* extractor_tool, char* destination, char* scripts_path, int force=0) {
if (force == 0) {
tinyfd_messageBox("Missing data",
DATA_NOT_EXTRACTED " Please select the " GAME_CD, "ok", "question", 1);
} else if (force == 1) {
tinyfd_messageBox("", "Please select the " GAME_CD, "ok", "question", 1);
} else if (force == 2) {
// pass
}
#ifdef USE_MAC
int patterncount = 0;
char* filepatterns[] = { NULL };
// file types as names not working at least on macOS sierra
#else
char* filepatterns[] = { GAME_CD_FILE_PATTERNS, NULL };
int patterncount = 0;
while (filepatterns[patterncount++] != NULL);
#endif
const char* datafile = tinyfd_openFileDialog(GAME_CD " location", "",
patterncount - 1, filepatterns, NULL, 0);
if (datafile == NULL) {
exit(-1);
}
char srcfolder[1024] = {'\0'};
strcpy(srcfolder, datafile);
char* sourcepath = strdup(scripts_path);
#ifdef WIN32
if (sourcepath[0] == '"') {
// if scripts_path is quoted, remove the quotes, i.e.,
// copy all but the first until all but the last char.
// sourcepath is already large enough because it used to contain the
// entire scripts_path
strncpy(sourcepath, scripts_path + 1, strlen(scripts_path) - 2);
sourcepath[strlen(scripts_path) - 2] = '\0';
}
#endif
mkdir_p(destination);
parentdir(srcfolder);
struct stat st;
if (stat(sourcepath, &st) != 0) {
// deployment time path not found, try compile time path
strcpy(sourcepath, SRC_PATH());
parentdir(sourcepath);
}
#ifndef WIN32
if (stat(sourcepath, &st) != 0) {
// deployment time path might be same as extractor
strcpy(sourcepath, extractor_tool);
parentdir(sourcepath);
}
#endif
if (stat(sourcepath, &st) != 0) {
// scripts not found, abort!
tinyfd_messageBox("Error", "There was an error copying the data, could not discover contributed directory path.", "ok", "error", 1);
return;
}
if (force != 2) {
char contrib_src_path[BUFF_SIZE];
char contrib_dest_path[BUFF_SIZE];
int i = 0;
int optional = 0;
char* contrib_directories[] = CONTRIB_DIRECTORIES;
while (contrib_directories[i] != NULL && contrib_directories[i + 1] != NULL) {
if (!strcmp(contrib_directories[i], ":optional:")) {
i += 1;
optional = 1;
} else {
if (contrib_directories[i][0] != '/') {
// absolute Unix paths are not appended to the source path
strcpy(contrib_src_path, sourcepath);
strcat(contrib_src_path, SLASH);
strcat(contrib_src_path, contrib_directories[i]);
} else {
strcpy(contrib_src_path, contrib_directories[i]);
}
if (stat(contrib_src_path, &st) != 0) {
// contrib dir not found, abort!
if (!optional) {
tinyfd_messageBox(contrib_directories[i], "There was an error copying the data, could not discover contributed directory path.", "ok", "error", 1);
return;
}
} else {
strcpy(contrib_dest_path, destination);
strcat(contrib_dest_path, SLASH);
strcat(contrib_dest_path, contrib_directories[i + 1]);
copy_dir(contrib_src_path, contrib_dest_path);
}
i += 2;
}
}
}
char cmdbuf[4096] = {'\0'};
#ifdef USE_MAC
strcat(cmdbuf, "osascript -e \"tell application \\\"Terminal\\\"\n"
" set w to do script \\\"");
#elif defined(WIN32)
strcat(cmdbuf, "/C \"");
#else
if (!isatty(1)) {
strcat(cmdbuf, "xterm -e bash -c ");
strcat(cmdbuf, " \"");
}
#endif
strcat(cmdbuf, extractor_tool);
strcat(cmdbuf, " " QUOTE);
strcat(cmdbuf, srcfolder);
strcat(cmdbuf, QUOTE " " QUOTE);
strcat(cmdbuf, destination);
strcat(cmdbuf, QUOTE);
#ifdef USE_MAC
strcat(cmdbuf, "; exit\\\"\n"
" repeat\n"
" delay 1\n"
" if not busy of w then exit repeat\n"
" end repeat\n"
"end tell\"");
#elif defined(WIN32)
strcat(cmdbuf, "\"");
#else
if (!isatty(1)) {
strcat(cmdbuf, "; echo 'Press RETURN to continue...'; read\"");
}
#endif
#ifdef WIN32
DWORD exitcode = 0;
SHELLEXECUTEINFO ShExecInfo = { 0 };
char* toolpath = strdup(extractor_tool);
if (PathRemoveFileSpec(toolpath)) {
// remove the leading quote
if (toolpath[0] == '"') memmove(toolpath, toolpath + 1, strlen(toolpath) + 1);
} else {
// nothing was removed, use current dir
toolpath = NULL;
}
ShExecInfo.cbSize = sizeof(SHELLEXECUTEINFO);
ShExecInfo.fMask = SEE_MASK_NOCLOSEPROCESS;
ShExecInfo.hwnd = NULL;
ShExecInfo.lpVerb = NULL;
ShExecInfo.lpFile = "cmd";
ShExecInfo.lpParameters = cmdbuf;
ShExecInfo.lpDirectory = toolpath;
ShExecInfo.nShow = SW_SHOW;
ShExecInfo.hInstApp = NULL;
ShellExecuteEx(&ShExecInfo);
WaitForSingleObject(ShExecInfo.hProcess, INFINITE);
GetExitCodeProcess(ShExecInfo.hProcess, &exitcode);
#else
int exitcode = 0;
exitcode = system(cmdbuf);
#endif
if (exitcode != 0) {
char* extractortext = (char*)calloc(sizeof(char), strlen(cmdbuf) + 1024);
sprintf(extractortext, "The following command was used to extract the data\n%s", cmdbuf);
tinyfd_messageBox("Extraction failed!", extractortext, "ok", "error", 1);
unlink(destination);
} else if (GAME_SHOULD_EXTRACT_AGAIN) {
ExtractData(extractor_tool, destination, scripts_path, 2);
}
}
int main(int argc, char * argv[]) {
struct stat st;
int argccpy = argc;
char data_path[BUFF_SIZE];
char scripts_path[BUFF_SIZE];
char stratagus_bin[BUFF_SIZE];
char title_path[BUFF_SIZE];
char extractor_path[BUFF_SIZE];
strcat(extractor_path, EXTRACTOR_TOOL);
if (!detectPresence(extractor_path)) {
// The extractor is in the same dir as we are
if (strchr(argv[0], SLASH[0])) {
strcpy(extractor_path, argv[0]);
parentdir(extractor_path);
strcat(extractor_path, SLASH EXTRACTOR_TOOL);
#ifdef WIN32
if (!strstr(extractor_path, ".exe")) {
strcat(extractor_path, ".exe");
}
#endif
// Once we have the path, we quote it by moving the memory one byte to the
// right, and surrounding it with the quote character and finishing null
// bytes. Then we add the arguments.
extractor_path[strlen(extractor_path) + 1] = '\0';
memmove(extractor_path + 1, extractor_path, strlen(extractor_path));
extractor_path[0] = QUOTE[0];
extractor_path[strlen(extractor_path) + 1] = '\0';
extractor_path[strlen(extractor_path)] = QUOTE[0];
}
}
strcat(extractor_path, " " EXTRACTOR_ARGS);
#ifdef WIN32
char executable_path[BUFF_SIZE];
memset(executable_path, 0, sizeof(executable_path));
GetModuleFileName(NULL, executable_path, sizeof(executable_path)-1);
char executable_drive[_MAX_DRIVE];
char executable_dir[_MAX_DIR];
memset(executable_drive, 0, sizeof(executable_drive));
memset(executable_dir, 0, sizeof(executable_dir));
_splitpath(executable_path, executable_drive, executable_dir, NULL, NULL);
size_t data_path_size = sizeof(data_path);
memset(data_path, 0, data_path_size);
if (executable_path[0] && executable_drive[0] && executable_dir[0]) {
strcpy(data_path, executable_drive);
strcpy(data_path+strlen(executable_drive), executable_dir);
} else {
getcwd(data_path, data_path_size);
}
const size_t data_path_length = strlen(data_path);
if (data_path_length != 0 && data_path[data_path_length - 1] == '\\') {
data_path[data_path_length - 1] = '\0';
}
sprintf(scripts_path, "\"%s\"", data_path);
char stratagus_path[BUFF_SIZE];
// Try to use stratagus.exe from data (install) directory first
sprintf(stratagus_bin, "%s\\stratagus.exe", data_path);
if (stat(stratagus_bin, &st) != 0) {
// If no local stratagus.exe is present, look for a globally installed version
DWORD stratagus_path_size = sizeof(stratagus_path);
memset(stratagus_path, 0, stratagus_path_size);
HKEY key;
if (RegOpenKeyEx(HKEY_LOCAL_MACHINE, REGKEY, 0, KEY_QUERY_VALUE, &key) == ERROR_SUCCESS) {
if (RegQueryValueEx(key, "InstallLocation", NULL, NULL, (LPBYTE)stratagus_path, &stratagus_path_size) == ERROR_SUCCESS) {
if (stratagus_path_size == 0 || strlen(stratagus_path) == 0) {
error(TITLE, STRATAGUS_NOT_FOUND);
}
}
RegCloseKey(key);
}
if (chdir(stratagus_path) != 0) {
error(TITLE, STRATAGUS_NOT_FOUND);
}
sprintf(stratagus_bin, "%s\\stratagus.exe", stratagus_path);
}
#ifdef DATA_PATH
// usually this isn't defined for windows builds. if it is, use it
strcpy(data_path, DATA_PATH);
#endif
#else
strcpy(data_path, DATA_PATH);
strcpy(scripts_path, SCRIPTS_PATH);
strcpy(stratagus_bin, STRATAGUS_BIN);
#endif
if (argc > 1) {
if (!strcmp(argv[1], "--extract")) {
// Force extraction and exit
SetUserDataPath(data_path);
ExtractData(extractor_path, data_path, scripts_path, 1);
return 0;
}
if (!strcmp(argv[1], "--extract-no-gui")) {
// Force extraction without ui and exit
tinyfd_forceConsole = 1;
SetUserDataPath(data_path);
ExtractData(extractor_path, data_path, scripts_path, 1);
return 0;
}
}
if ( stat(stratagus_bin, &st) != 0 ) {
#ifdef WIN32
_fullpath(stratagus_bin, argv[0], BUFF_SIZE);
PathRemoveFileSpec(stratagus_bin);
strcat(extractor_path, "\\stratagus.exe");
if (stat(stratagus_bin, &st) != 0) {
error(TITLE, STRATAGUS_NOT_FOUND);
}
#else
if (!detectPresence(stratagus_bin)) {
realpath(argv[0], stratagus_bin);
parentdir(stratagus_bin);
if (strlen(stratagus_bin) > 0) {
strcat(stratagus_bin, "/stratagus");
} else {
strcat(stratagus_bin, "./stratagus");
}
if ( stat(stratagus_bin, &st) != 0 ) {
error(TITLE, STRATAGUS_NOT_FOUND);
}
}
#endif
}
sprintf(title_path, TITLE_PNG, data_path);
if ( stat(title_path, &st) != 0 ) {
SetUserDataPath(data_path);
sprintf(title_path, TITLE_PNG, data_path);
if ( stat(title_path, &st) != 0 ) {
ExtractData(extractor_path, data_path, scripts_path);
}
if ( stat(title_path, &st) != 0 ) {
error(TITLE, DATA_NOT_EXTRACTED);
}
}
if (!check_version(extractor_path, data_path)) {
ExtractData(extractor_path, data_path, scripts_path);
}
#ifdef WIN32
int data_path_len = strlen(data_path);
_chdir(data_path);
for (int i = data_path_len - 1; i >= 0; --i) {
data_path[i + 1] = data_path[i];
}
data_path[0] = '"';
data_path[data_path_len + 1] = '"';
data_path[data_path_len + 2] = 0;
#endif
#ifdef _MSC_VER
char** stratagus_argv;
stratagus_argv = (char**) malloc((argc + 3) * sizeof (*stratagus_argv));
#else
char * stratagus_argv[argc + 3];
#endif
#ifdef WIN32
char stratagus_argv0_esc[BUFF_SIZE];
memset(stratagus_argv0_esc, 0, sizeof(stratagus_argv0_esc));
strcpy(stratagus_argv0_esc + 1, argv[0]);
stratagus_argv0_esc[0] = '"';
stratagus_argv0_esc[strlen(argv[0]) + 1] = '"';
stratagus_argv0_esc[strlen(argv[0]) + 2] = 0;
stratagus_argv[0] = stratagus_argv0_esc;
#else
stratagus_argv[0] = argv[0];
#endif
stratagus_argv[1] = "-d";
stratagus_argv[2] = data_path;
for (int i = 3; i < argc + 2; ++i ) {
stratagus_argv[i] = argv[i - 2];
}
stratagus_argv[argc + 2] = NULL;
#ifdef WIN32
int ret = spawnvp(_P_WAIT, stratagus_bin, stratagus_argv);
#else
int ret = 0;
int childpid = fork();
if (childpid == 0) {
execvp(stratagus_bin, stratagus_argv);
if (strcmp(stratagus_bin, "stratagus") == 0) {
realpath(argv[0], stratagus_bin);
parentdir(stratagus_bin);
strcat(stratagus_bin, "/stratagus");
}
execvp(stratagus_bin, stratagus_argv);
exit(ENOENT);
} else if (childpid > 0) {
waitpid(childpid, &ret, 0);
} else {
ret = ENOENT;
}
#endif
if (ret == ENOENT) {
error(TITLE, STRATAGUS_NOT_FOUND);
} else if (ret != 0) {
char message[8096] = {'\0'};
snprintf(message, 8096,
"Stratagus failed to load game data. "
"If you just launched the game without any arguments, this may indicate a bug with the extraction process. "
"Please report this on https://github.com/Wargus/stratagus/issues/new, "
"and please give details, including: operating system, installation path, username, kind of source CD. "
"A possible solution is to remove the hidden folder %s).", data_path);
error(TITLE, message);
unlink(title_path);
unlink(data_path);
}
exit(ret);
}
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