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- Added Steam detection for Stife: Veteran Edition.
- Added Steam install scanning for Linux and OS X. (OS X and Win32 not yet tested.)
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/* | ||
** i_steam.cpp | ||
** | ||
**--------------------------------------------------------------------------- | ||
** Copyright 2013 Braden Obrzut | ||
** All rights reserved. | ||
** | ||
** Redistribution and use in source and binary forms, with or without | ||
** modification, are permitted provided that the following conditions | ||
** are met: | ||
** | ||
** 1. Redistributions of source code must retain the above copyright | ||
** notice, this list of conditions and the following disclaimer. | ||
** 2. Redistributions in binary form must reproduce the above copyright | ||
** notice, this list of conditions and the following disclaimer in the | ||
** documentation and/or other materials provided with the distribution. | ||
** 3. The name of the author may not be used to endorse or promote products | ||
** derived from this software without specific prior written permission. | ||
** | ||
** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR | ||
** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES | ||
** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. | ||
** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, | ||
** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | ||
** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | ||
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | ||
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | ||
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF | ||
** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | ||
**--------------------------------------------------------------------------- | ||
** | ||
** | ||
*/ | ||
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#include <sys/stat.h> | ||
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#include "doomerrors.h" | ||
#include "d_main.h" | ||
#include "zstring.h" | ||
#include "sc_man.h" | ||
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static void PSR_FindEndBlock(FScanner &sc) | ||
{ | ||
int depth = 1; | ||
do | ||
{ | ||
if(sc.CheckToken('}')) | ||
--depth; | ||
else if(sc.CheckToken('{')) | ||
++depth; | ||
else | ||
sc.MustGetAnyToken(); | ||
} | ||
while(depth); | ||
} | ||
static void PSR_SkipBlock(FScanner &sc) | ||
{ | ||
sc.MustGetToken('{'); | ||
PSR_FindEndBlock(sc); | ||
} | ||
static bool PSR_FindAndEnterBlock(FScanner &sc, const char* keyword) | ||
{ | ||
// Finds a block with a given keyword and then enter it (opening brace) | ||
// Should be closed with PSR_FindEndBlock | ||
while(sc.GetToken()) | ||
{ | ||
if(sc.TokenType == '}') | ||
{ | ||
sc.UnGet(); | ||
return false; | ||
} | ||
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sc.TokenMustBe(TK_StringConst); | ||
if(!sc.Compare(keyword)) | ||
{ | ||
if(!sc.CheckToken(TK_StringConst)) | ||
PSR_SkipBlock(sc); | ||
} | ||
else | ||
{ | ||
sc.MustGetToken('{'); | ||
return true; | ||
} | ||
} | ||
return false; | ||
} | ||
static TArray<FString> PSR_ReadBaseInstalls(FScanner &sc) | ||
{ | ||
TArray<FString> result; | ||
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// Get a list of possible install directories. | ||
while(sc.GetToken()) | ||
{ | ||
if(sc.TokenType == '}') | ||
break; | ||
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sc.TokenMustBe(TK_StringConst); | ||
FString key(sc.String); | ||
if(key.Left(18).CompareNoCase("BaseInstallFolder_") == 0) | ||
{ | ||
sc.MustGetToken(TK_StringConst); | ||
result.Push(sc.String); | ||
} | ||
else | ||
{ | ||
if(sc.CheckToken('{')) | ||
PSR_FindEndBlock(sc); | ||
else | ||
sc.MustGetToken(TK_StringConst); | ||
} | ||
} | ||
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return result; | ||
} | ||
static TArray<FString> ParseSteamRegistry(const char* path) | ||
{ | ||
TArray<FString> dirs; | ||
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// Read registry data | ||
FScanner sc; | ||
sc.OpenFile(path); | ||
sc.SetCMode(true); | ||
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// Find the SteamApps listing | ||
if(PSR_FindAndEnterBlock(sc, "InstallConfigStore")) | ||
{ | ||
if(PSR_FindAndEnterBlock(sc, "Software")) | ||
{ | ||
if(PSR_FindAndEnterBlock(sc, "Valve")) | ||
{ | ||
if(PSR_FindAndEnterBlock(sc, "Steam")) | ||
{ | ||
dirs = PSR_ReadBaseInstalls(sc); | ||
} | ||
PSR_FindEndBlock(sc); | ||
} | ||
PSR_FindEndBlock(sc); | ||
} | ||
PSR_FindEndBlock(sc); | ||
} | ||
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return dirs; | ||
} | ||
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static struct SteamAppInfo | ||
{ | ||
const char* const BasePath; | ||
const int AppID; | ||
} AppInfo[] = | ||
{ | ||
/*{"doom 2/base", 2300}, | ||
{"final doom/base", 2290}, | ||
{"heretic shadow of the serpent riders/base", 2390}, | ||
{"hexen/base", 2360}, | ||
{"hexen deathkings of the dark citadel/base", 2370}, | ||
{"ultimate doom/base", 2280}, | ||
{"DOOM 3 BFG Edition/base/wads", 208200},*/ | ||
{"Strife", 317040} | ||
}; | ||
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TArray<FString> I_GetSteamPath() | ||
{ | ||
TArray<FString> result; | ||
TArray<FString> SteamInstallFolders; | ||
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// Linux and OS X actually allow the user to install to any location, so | ||
// we need to figure out on an app-by-app basis where the game is installed. | ||
// To do so, we read the virtual registry. | ||
#ifdef __APPLE__ | ||
FString OSX_FindApplicationSupport(); | ||
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FString regPath = OSX_FindApplicationSupport() + "/Steam/config/config.vdf"; | ||
try | ||
{ | ||
SteamInstallFolders = ParseSteamRegistry(regPath); | ||
} | ||
catch(class CDoomError &error) | ||
{ | ||
// If we can't parse for some reason just pretend we can't find anything. | ||
return result; | ||
} | ||
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SteamInstallFolders.Push(OSX_FindApplicationSupport() + "/Steam/SteamApps/common"); | ||
#else | ||
char* home = getenv("HOME"); | ||
if(home != NULL && *home != '\0') | ||
{ | ||
FString regPath; | ||
regPath.Format("%s/.local/share/Steam/config/config.vdf", home); | ||
try | ||
{ | ||
SteamInstallFolders = ParseSteamRegistry(regPath); | ||
} | ||
catch(class CDoomError &error) | ||
{ | ||
// If we can't parse for some reason just pretend we can't find anything. | ||
return result; | ||
} | ||
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regPath.Format("%s/.local/share/Steam/SteamApps/common", home); | ||
SteamInstallFolders.Push(regPath); | ||
} | ||
#endif | ||
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for(unsigned int i = 0;i < SteamInstallFolders.Size();++i) | ||
{ | ||
for(unsigned int app = 0;app < countof(AppInfo);++app) | ||
{ | ||
struct stat st; | ||
FString candidate(SteamInstallFolders[i] + "/" + AppInfo[app].BasePath); | ||
if(stat(candidate, &st) == 0 && S_ISDIR(st.st_mode)) | ||
result.Push(candidate); | ||
} | ||
} | ||
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return result; | ||
} |
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