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// Copyright 2017-2022 The Mumble Developers. All rights reserved.
// Use of this source code is governed by a BSD-style license
// that can be found in the LICENSE file at the root of the
// Mumble source tree or at <https://www.mumble.info/LICENSE>.
#include "olsettings.h"
#include "lib.h" // include lib.h for Windows headers...
#include "util.h"
#include <algorithm>
#include <iterator>
#include <string>
#include <vector>
#include "overlay_blacklist.h"
#include "overlay_launchers.h"
#include "overlay_whitelist.h"
// Get the default blacklist (from overlay_blacklist.h) as a string vector.
static std::vector< std::string > defaultBlacklistVector() {
std::vector< std::string > out;
size_t i = 0;
while (overlayBlacklist[i]) {
out.push_back(std::string(overlayBlacklist[i]));
i++;
}
return out;
}
// Get the default whitelist (from overlay_whitelist.h) as a string vector.
static std::vector< std::string > defaultWhitelistVector() {
std::vector< std::string > out;
size_t i = 0;
while (overlayWhitelist[i]) {
out.push_back(std::string(overlayWhitelist[i]));
i++;
}
return out;
}
// Get the default launcher list (from overlay_launchers.h) as a string vector.
static std::vector< std::string > defaultLaunchersVector() {
std::vector< std::string > out;
size_t i = 0;
while (overlayLaunchers[i]) {
out.push_back(std::string(overlayLaunchers[i]));
i++;
}
return out;
}
// Read a REG_MULTI_SZ value from the Windows registry and return it as a string vector.
// Returns an empty vector on failure.
static std::vector< std::string > regReadMultiString(HKEY key, const std::string &subKey,
const std::string &valueName) {
LONG err = 0;
std::vector< std::string > out;
char *buf = nullptr;
HKEY subKeyHandle = 0;
err = RegOpenKeyExA(key, subKey.c_str(), 0, KEY_READ, &subKeyHandle);
if (err != ERROR_SUCCESS) {
goto err;
}
DWORD sz = 0;
DWORD type = 0;
err = RegQueryValueExA(subKeyHandle, valueName.c_str(), nullptr, &type, nullptr, &sz);
if (err != ERROR_SUCCESS) {
goto err;
}
if (type != REG_MULTI_SZ) {
goto err;
}
// If the size is longer than 4MB, treat it as an error.
if (sz > 4 * 1024 * 1024) {
goto err;
}
buf = reinterpret_cast< char * >(malloc(sz));
if (!buf) {
goto err;
}
err = RegQueryValueExA(subKeyHandle, valueName.c_str(), nullptr, &type, reinterpret_cast< BYTE * >(buf), &sz);
if (err != ERROR_SUCCESS) {
goto err;
}
size_t begin = 0;
for (size_t i = 0; i < sz; i++) {
if (buf[i] == 0) {
size_t len = i - begin;
if (len > 0) {
std::string s(&buf[begin], len);
out.push_back(s);
}
begin = i + 1;
}
}
err:
free(buf);
return out;
}
// Get the Mumble client's configured overlay exclusion mode as an integer.
// Returns -1 if the function could not read the value from the Windows registry.
static int getModeInternal() {
LONG err = 0;
HKEY key = nullptr;
DWORD mode = -1;
err = RegOpenKeyExA(HKEY_CURRENT_USER, "Software\\Mumble\\Mumble\\overlay", 0, KEY_READ, &key);
if (err != ERROR_SUCCESS) {
return -1;
}
DWORD sz = sizeof(mode);
err = RegQueryValueExA(key, "mode", nullptr, nullptr, reinterpret_cast< BYTE * >(&mode), &sz);
if (err != ERROR_SUCCESS) {
return -1;
}
if (sz != sizeof(mode)) {
return -1;
}
return static_cast< int >(mode);
}
OverlayExclusionMode SettingsGetExclusionMode() {
int mode = getModeInternal();
if (mode == -1) {
// If no exclusion mode is set in the registry,
// use the launcher filter.
return LauncherFilterExclusionMode;
}
return static_cast< OverlayExclusionMode >(mode);
}
std::vector< std::string > SettingsGetLaunchers() {
std::vector< std::string > defaultLaunchers = vlowercase(defaultLaunchersVector());
std::vector< std::string > userLaunchers =
vlowercase(regReadMultiString(HKEY_CURRENT_USER, "Software\\Mumble\\Mumble\\overlay", "launchers"));
std::vector< std::string > userExcludedLaunchers =
vlowercase(regReadMultiString(HKEY_CURRENT_USER, "Software\\Mumble\\Mumble\\overlay", "launchersexclude"));
std::vector< std::string > actualExcludedLaunchers = vintersect(defaultLaunchers, userExcludedLaunchers);
return vexclude(vmerge(defaultLaunchers, userLaunchers), actualExcludedLaunchers);
}
std::vector< std::string > SettingsGetWhitelist() {
std::vector< std::string > defaultWhitelist = vlowercase(defaultWhitelistVector());
// We don't consider Mumble's built-in whitelist when in WhitelistExclusionMode.
// The built-in whitelist is only used in LauncherFilterExclusionMode.
if (SettingsGetExclusionMode() == WhitelistExclusionMode) {
defaultWhitelist = std::vector< std::string >();
}
std::vector< std::string > userWhitelist =
vlowercase(regReadMultiString(HKEY_CURRENT_USER, "Software\\Mumble\\Mumble\\overlay", "whitelist"));
std::vector< std::string > userExcludedWhitelistEntries =
vlowercase(regReadMultiString(HKEY_CURRENT_USER, "Software\\Mumble\\Mumble\\overlay", "whitelistexclude"));
std::vector< std::string > actualExcludedWhitelistEntries =
vintersect(defaultWhitelist, userExcludedWhitelistEntries);
return vexclude(vmerge(defaultWhitelist, userWhitelist), actualExcludedWhitelistEntries);
}
std::vector< std::string > SettingsGetPaths() {
std::vector< std::string > defaultPaths;
std::vector< std::string > userPaths =
vlowercase(regReadMultiString(HKEY_CURRENT_USER, "Software\\Mumble\\Mumble\\overlay", "paths"));
std::vector< std::string > userExcludedPaths =
vlowercase(regReadMultiString(HKEY_CURRENT_USER, "Software\\Mumble\\Mumble\\overlay", "pathsexclude"));
std::vector< std::string > actualExcludedPaths = vintersect(defaultPaths, userExcludedPaths);
return vexclude(vmerge(defaultPaths, userPaths), actualExcludedPaths);
}
std::vector< std::string > SettingsGetBlacklist() {
std::vector< std::string > defaultBlacklist = vlowercase(defaultBlacklistVector());
std::vector< std::string > userBlacklist =
vlowercase(regReadMultiString(HKEY_CURRENT_USER, "Software\\Mumble\\Mumble\\overlay", "blacklist"));
std::vector< std::string > userExcludedBlacklistEntries =
vlowercase(regReadMultiString(HKEY_CURRENT_USER, "Software\\Mumble\\Mumble\\overlay", "blacklistexclude"));
std::vector< std::string > actualExcludedPaths = vintersect(defaultBlacklist, userExcludedBlacklistEntries);
return vexclude(vmerge(defaultBlacklist, userBlacklist), actualExcludedPaths);
}
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