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Atmosphere/stratosphere/libstratosphere/source/cfg/cfg_override.cpp
2019-12-07 12:41:28 -08:00

302 lines
12 KiB
C++

/*
* Copyright (c) 2018-2019 Atmosphère-NX
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope 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/>.
*/
#include <stratosphere.hpp>
namespace ams::cfg {
namespace {
/* Types. */
struct OverrideKey {
u64 key_combination;
bool override_by_default;
};
struct HblOverrideConfig {
OverrideKey override_key;
OverrideKey override_any_app_key;
ncm::ProgramId program_id;
bool override_any_app;
};
struct ContentSpecificOverrideConfig {
OverrideKey override_key;
OverrideKey cheat_enable_key;
OverrideLocale locale;
};
/* Override globals. */
OverrideKey g_default_override_key = {
.key_combination = KEY_L,
.override_by_default = true,
};
OverrideKey g_default_cheat_enable_key = {
.key_combination = KEY_L,
.override_by_default = true,
};
HblOverrideConfig g_hbl_override_config = {
.override_key = {
.key_combination = KEY_R,
.override_by_default = true,
},
.override_any_app_key = {
.key_combination = KEY_R,
.override_by_default = false,
},
.program_id = ncm::ProgramId::AppletPhotoViewer,
.override_any_app = true,
};
char g_hbl_sd_path[0x100] = "/atmosphere/hbl.nsp";
/* Helpers. */
OverrideKey ParseOverrideKey(const char *value) {
OverrideKey cfg = {};
/* Parse on by default. */
if (value[0] == '!') {
cfg.override_by_default = true;
value++;
}
/* Parse key combination. */
if (strcasecmp(value, "A") == 0) {
cfg.key_combination = KEY_A;
} else if (strcasecmp(value, "B") == 0) {
cfg.key_combination = KEY_B;
} else if (strcasecmp(value, "X") == 0) {
cfg.key_combination = KEY_X;
} else if (strcasecmp(value, "Y") == 0) {
cfg.key_combination = KEY_Y;
} else if (strcasecmp(value, "LS") == 0) {
cfg.key_combination = KEY_LSTICK;
} else if (strcasecmp(value, "RS") == 0) {
cfg.key_combination = KEY_RSTICK;
} else if (strcasecmp(value, "L") == 0) {
cfg.key_combination = KEY_L;
} else if (strcasecmp(value, "R") == 0) {
cfg.key_combination = KEY_R;
} else if (strcasecmp(value, "ZL") == 0) {
cfg.key_combination = KEY_ZL;
} else if (strcasecmp(value, "ZR") == 0) {
cfg.key_combination = KEY_ZR;
} else if (strcasecmp(value, "PLUS") == 0) {
cfg.key_combination = KEY_PLUS;
} else if (strcasecmp(value, "MINUS") == 0) {
cfg.key_combination = KEY_MINUS;
} else if (strcasecmp(value, "DLEFT") == 0) {
cfg.key_combination = KEY_DLEFT;
} else if (strcasecmp(value, "DUP") == 0) {
cfg.key_combination = KEY_DUP;
} else if (strcasecmp(value, "DRIGHT") == 0) {
cfg.key_combination = KEY_DRIGHT;
} else if (strcasecmp(value, "DDOWN") == 0) {
cfg.key_combination = KEY_DDOWN;
} else if (strcasecmp(value, "SL") == 0) {
cfg.key_combination = KEY_SL;
} else if (strcasecmp(value, "SR") == 0) {
cfg.key_combination = KEY_SR;
}
return cfg;
}
int LoaderIniHandler(void *user, const char *section, const char *name, const char *value) {
/* Taken and modified, with love, from Rajkosto's implementation. */
if (strcasecmp(section, "hbl_config") == 0) {
/* TODO: Consider deprecating "title_id" string in the future." */
if (strcasecmp(name, "program_id") == 0 || strcasecmp(name, "title_id") == 0) {
u64 override_program_id = strtoul(value, NULL, 16);
if (override_program_id != 0) {
g_hbl_override_config.program_id = {override_program_id};
}
} else if (strcasecmp(name, "path") == 0) {
while (*value == '/' || *value == '\\') {
value++;
}
std::snprintf(g_hbl_sd_path, sizeof(g_hbl_sd_path) - 1, "/%s", value);
g_hbl_sd_path[sizeof(g_hbl_sd_path) - 1] = '\0';
} else if (strcasecmp(name, "override_key") == 0) {
g_hbl_override_config.override_key = ParseOverrideKey(value);
} else if (strcasecmp(name, "override_any_app") == 0) {
if (strcasecmp(value, "true") == 0 || strcasecmp(value, "1") == 0) {
g_hbl_override_config.override_any_app = true;
} else if (strcasecmp(value, "false") == 0 || strcasecmp(value, "0") == 0) {
g_hbl_override_config.override_any_app = false;
} else {
/* I guess we default to not changing the value? */
}
} else if (strcasecmp(name, "override_any_app_key") == 0) {
g_hbl_override_config.override_any_app_key = ParseOverrideKey(value);
}
} else if (strcasecmp(section, "default_config") == 0) {
if (strcasecmp(name, "override_key") == 0) {
g_default_override_key = ParseOverrideKey(value);
} else if (strcasecmp(name, "cheat_enable_key") == 0) {
g_default_cheat_enable_key = ParseOverrideKey(value);
}
} else {
return 0;
}
return 1;
}
int ContentSpecificIniHandler(void *user, const char *section, const char *name, const char *value) {
ContentSpecificOverrideConfig *config = reinterpret_cast<ContentSpecificOverrideConfig *>(user);
if (strcasecmp(section, "override_config") == 0) {
if (strcasecmp(name, "override_key") == 0) {
config->override_key = ParseOverrideKey(value);
} else if (strcasecmp(name, "cheat_enable_key") == 0) {
config->cheat_enable_key = ParseOverrideKey(value);
} else if (strcasecmp(name, "override_language") == 0) {
config->locale.language_code = settings::LanguageCode::Encode(value);
} else if (strcasecmp(name, "override_region") == 0) {
if (strcasecmp(value, "jpn") == 0) {
config->locale.region_code = settings::RegionCode_Japan;
} else if (strcasecmp(value, "usa") == 0) {
config->locale.region_code = settings::RegionCode_America;
} else if (strcasecmp(value, "eur") == 0) {
config->locale.region_code = settings::RegionCode_Europe;
} else if (strcasecmp(value, "aus") == 0) {
config->locale.region_code = settings::RegionCode_Australia;
} else if (strcasecmp(value, "chn") == 0) {
config->locale.region_code = settings::RegionCode_China;
} else if (strcasecmp(value, "kor") == 0) {
config->locale.region_code = settings::RegionCode_Korea;
} else if (strcasecmp(value, "twn") == 0) {
config->locale.region_code = settings::RegionCode_Taiwan;
}
}
} else {
return 0;
}
return 1;
}
constexpr inline bool IsOverrideMatch(const OverrideStatus &status, const OverrideKey &cfg) {
bool keys_triggered = ((status.keys_held & cfg.key_combination) != 0);
return (cfg.override_by_default ^ keys_triggered);
}
inline bool IsApplicationHblProgramId(ncm::ProgramId program_id) {
return g_hbl_override_config.override_any_app && ncm::IsApplicationProgramId(program_id);
}
inline bool IsSpecificHblProgramId(ncm::ProgramId program_id) {
return program_id == g_hbl_override_config.program_id;
}
void ParseIniFile(util::ini::Handler handler, const char *path, void *user_ctx) {
/* Mount the SD card. */
FsFileSystem sd_fs = {};
if (R_FAILED(fsOpenSdCardFileSystem(&sd_fs))) {
return;
}
ON_SCOPE_EXIT { serviceClose(&sd_fs.s); };
/* Open the file. */
FsFile config_file;
if (R_FAILED(fsFsOpenFile(&sd_fs, path, FsOpenMode_Read, &config_file))) {
return;
}
ON_SCOPE_EXIT { fsFileClose(&config_file); };
/* Parse the config. */
util::ini::ParseFile(&config_file, user_ctx, handler);
}
void RefreshLoaderConfiguration() {
ParseIniFile(LoaderIniHandler, "/atmosphere/loader.ini", nullptr);
}
ContentSpecificOverrideConfig GetContentOverrideConfig(ncm::ProgramId program_id) {
char path[FS_MAX_PATH];
std::snprintf(path, sizeof(path) - 1, "/atmosphere/contents/%016lx/config.ini", static_cast<u64>(program_id));
ContentSpecificOverrideConfig config = {
.override_key = g_default_override_key,
.cheat_enable_key = g_default_cheat_enable_key,
};
std::memset(&config.locale, 0xCC, sizeof(config.locale));
ParseIniFile(ContentSpecificIniHandler, path, &config);
return config;
}
}
OverrideStatus CaptureOverrideStatus(ncm::ProgramId program_id) {
OverrideStatus status = {};
/* If the SD card isn't initialized, we can't override. */
if (!IsSdCardInitialized()) {
return status;
}
/* For system modules and anything launched before the home menu, always override. */
if (program_id < ncm::ProgramId::AppletStart || !pm::info::HasLaunchedProgram(ncm::ProgramId::AppletQlaunch)) {
status.SetProgramSpecific();
return status;
}
/* Unconditionally refresh loader.ini contents. */
RefreshLoaderConfiguration();
/* If we can't read the key state, don't override anything. */
if (R_FAILED(hid::GetKeysHeld(&status.keys_held))) {
return status;
}
/* Detect Hbl. */
if ((IsApplicationHblProgramId(program_id) && IsOverrideMatch(status, g_hbl_override_config.override_any_app_key)) ||
(IsSpecificHblProgramId(program_id) && IsOverrideMatch(status, g_hbl_override_config.override_key)))
{
status.SetHbl();
}
/* Detect content specific keys. */
const auto content_cfg = GetContentOverrideConfig(program_id);
if (IsOverrideMatch(status, content_cfg.override_key)) {
status.SetProgramSpecific();
}
/* Only allow cheat enable if not HBL. */
if (!status.IsHbl() && IsOverrideMatch(status, content_cfg.cheat_enable_key)) {
status.SetCheatEnabled();
}
return status;
}
OverrideLocale GetOverrideLocale(ncm::ProgramId program_id) {
return GetContentOverrideConfig(program_id).locale;
}
/* HBL Configuration utilities. */
bool IsHblProgramId(ncm::ProgramId program_id) {
return IsApplicationHblProgramId(program_id) || IsSpecificHblProgramId(program_id);
}
const char *GetHblPath() {
return g_hbl_sd_path;
}
}