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Atmosphere/stratosphere/libstratosphere/source/cfg/cfg_override.cpp
Michael Scire f534d3498e git subrepo clone https://github.com/Atmosphere-NX/libstratosphere stratosphere/libstratosphere
subrepo:
  subdir:   "stratosphere/libstratosphere"
  merged:   "0c5dab80"
upstream:
  origin:   "https://github.com/Atmosphere-NX/libstratosphere"
  branch:   "master"
  commit:   "0c5dab80"
git-subrepo:
  version:  "0.4.0"
  origin:   "https://github.com/ingydotnet/git-subrepo"
  commit:   "5d6aba9"
2019-07-17 20:04:00 -07:00

302 lines
11 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 <cstring>
#include <strings.h>
#include <switch.h>
#include <stratosphere.hpp>
#include <stratosphere/cfg.hpp>
#include <stratosphere/pm.hpp>
#include <stratosphere/util.hpp>
namespace sts::cfg {
namespace {
/* Types. */
struct OverrideKey {
u64 key_combination;
bool override_by_default;
};
struct HblOverrideConfig {
OverrideKey override_key;
ncm::TitleId title_id;
bool override_any_app;
};
struct TitleSpecificOverrideConfig {
OverrideKey override_key;
OverrideKey cheat_enable_key;
};
/* 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 = false,
},
.title_id = ncm::TitleId::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) {
if (strcasecmp(name, "title_id") == 0) {
u64 override_tid = strtoul(value, NULL, 16);
if (override_tid != 0) {
g_hbl_override_config.title_id = {override_tid};
}
} 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(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 TitleSpecificIniHandler(void *user, const char *section, const char *name, const char *value) {
TitleSpecificOverrideConfig *config = reinterpret_cast<TitleSpecificOverrideConfig *>(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 {
return 0;
}
return 1;
}
bool IsOverrideKeyHeld(OverrideKey *cfg) {
u64 kHeld = 0;
bool keys_triggered = (R_SUCCEEDED(hid::GetKeysHeld(&kHeld)) && ((kHeld & cfg->key_combination) != 0));
return IsSdCardInitialized() && (cfg->override_by_default ^ keys_triggered);
}
void ParseIniFile(util::ini::Handler handler, const char *path, void *user_ctx) {
/* Mount the SD card. */
FsFileSystem sd_fs = {};
if (R_FAILED(fsMountSdcard(&sd_fs))) {
return;
}
ON_SCOPE_EXIT { serviceClose(&sd_fs.s); };
/* Open the file. */
FsFile config_file;
if (R_FAILED(fsFsOpenFile(&sd_fs, path, FS_OPEN_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);
}
TitleSpecificOverrideConfig GetTitleOverrideConfig(ncm::TitleId title_id) {
char path[FS_MAX_PATH];
std::snprintf(path, sizeof(path) - 1, "/atmosphere/titles/%016lx/config.ini", static_cast<u64>(title_id));
TitleSpecificOverrideConfig config = {
.override_key = g_default_override_key,
.cheat_enable_key = g_default_cheat_enable_key,
};
ParseIniFile(TitleSpecificIniHandler, path, &config);
return config;
}
}
bool IsHblOverrideKeyHeld(ncm::TitleId title_id) {
/* If the SD card isn't initialized, we can't override. */
if (!IsSdCardInitialized()) {
return false;
}
/* For system modules and anything launched before the home menu, always override. */
if (title_id < ncm::TitleId::AppletStart || !pm::info::HasLaunchedTitle(ncm::TitleId::AppletQlaunch)) {
return true;
}
/* Unconditionally refresh loader.ini contents. */
RefreshLoaderConfiguration();
/* Check HBL config. */
return IsHblTitleId(title_id) && IsOverrideKeyHeld(&g_hbl_override_config.override_key);
}
bool IsTitleOverrideKeyHeld(ncm::TitleId title_id) {
/* If the SD card isn't initialized, we can't override. */
if (!IsSdCardInitialized()) {
return false;
}
/* For system modules and anything launched before the home menu, always override. */
if (title_id < ncm::TitleId::AppletStart || !pm::info::HasLaunchedTitle(ncm::TitleId::AppletQlaunch)) {
return true;
}
/* Unconditionally refresh loader.ini contents. */
RefreshLoaderConfiguration();
TitleSpecificOverrideConfig title_cfg = GetTitleOverrideConfig(title_id);
return IsOverrideKeyHeld(&title_cfg.override_key);
}
void GetOverrideKeyHeldStatus(bool *out_hbl, bool *out_title, ncm::TitleId title_id) {
/* If the SD card isn't initialized, we can't override. */
if (!IsSdCardInitialized()) {
*out_hbl = false;
*out_title = false;
return;
}
/* For system modules and anything launched before the home menu, always override. */
if (title_id < ncm::TitleId::AppletStart || !pm::info::HasLaunchedTitle(ncm::TitleId::AppletQlaunch)) {
*out_hbl = false;
*out_title = true;
return;
}
/* Unconditionally refresh loader.ini contents. */
RefreshLoaderConfiguration();
/* Set HBL output. */
*out_hbl = IsHblTitleId(title_id) && IsOverrideKeyHeld(&g_hbl_override_config.override_key);
/* Set title specific output. */
TitleSpecificOverrideConfig title_cfg = GetTitleOverrideConfig(title_id);
*out_title = IsOverrideKeyHeld(&title_cfg.override_key);
}
bool IsCheatEnableKeyHeld(ncm::TitleId title_id) {
/* If the SD card isn't initialized, don't apply cheats. */
if (!IsSdCardInitialized()) {
return false;
}
/* Don't apply cheats to HBL. */
if (IsHblOverrideKeyHeld(title_id)) {
return false;
}
TitleSpecificOverrideConfig title_cfg = GetTitleOverrideConfig(title_id);
return IsOverrideKeyHeld(&title_cfg.cheat_enable_key);
}
/* HBL Configuration utilities. */
bool IsHblTitleId(ncm::TitleId title_id) {
return (g_hbl_override_config.override_any_app && ncm::IsApplicationTitleId(title_id)) || (title_id == g_hbl_override_config.title_id);
}
const char *GetHblPath() {
return g_hbl_sd_path;
}
}