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Backup application files before patches

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This commit is contained in:
rw-r-r-0644 2020-11-30 22:09:08 +01:00
parent 29e8b0b8c3
commit 2d07e8fe9d
4 changed files with 50 additions and 2 deletions
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12
source/ApplicationState.cpp
View File

@ -129,6 +129,8 @@ void ApplicationState::render() {
}
} else if (this->state == STATE_INSTALL_STARTED) {
WiiUScreen::drawLine("Installing...");
} else if (this->state == STATE_INSTALL_BACKUP) {
WiiUScreen::drawLine("... backing up files");
} else if (this->state == STATE_INSTALL_FST) {
WiiUScreen::drawLine("... patching title.fst");
} else if (this->state == STATE_INSTALL_COS) {
@ -233,7 +235,15 @@ void ApplicationState::update(Input *input) {
return;
}
} else if (this->state == STATE_INSTALL_STARTED) {
this->state = STATE_INSTALL_FST;
this->state = STATE_INSTALL_BACKUP;
} else if (this->state == STATE_INSTALL_BACKUP) {
auto result = InstallerService::backupAppFiles(this->appInfo->path);
if (result != InstallerService::SUCCESS) {
setError(ERROR_INSTALLER_ERROR);
this->installerError = result;
} else {
this->state = STATE_INSTALL_FST;
}
} else if (this->state == STATE_INSTALL_FST) {
auto result = InstallerService::patchFST(this->appInfo->path, this->appInfo->fstHash);
if (result != InstallerService::SUCCESS) {

1
source/ApplicationState.h
View File

@ -26,6 +26,7 @@ public:
STATE_INSTALL_NO_COLDBOOT_ALLOWED,
STATE_INSTALL_CONFIRM_DIALOG,
STATE_INSTALL_STARTED,
STATE_INSTALL_BACKUP,
STATE_INSTALL_FST,
STATE_INSTALL_COS,
STATE_INSTALL_RPX,

35
source/InstallerService.cpp
View File

@ -317,6 +317,41 @@ std::string InstallerService::ErrorMessage(InstallerService::eResults error) {
}
InstallerService::eResults InstallerService::backupAppFiles(const std::string &path) {
std::string backupList[][2] = {
{"/code/title.fst", "/content/title.fst.bak"},
{"/code/cos.xml", "/content/cos.xml.bak" },
{"/code/safe.rpx", "/content/safe.rpx.bak" },
};
for (auto &backupOp : backupList) {
std::string backupSrc = path + backupOp[0];
std::string backupDst = path + backupOp[1];
if (FSUtils::CheckFile(backupDst.c_str())) {
DEBUG_FUNCTION_LINE("Already backed up: %s", backupSrc.c_str());
continue;
}
if (!FSUtils::copyFile(backupSrc, backupDst)) {
DEBUG_FUNCTION_LINE("Failed to copy files");
return FAILED_TO_COPY_FILES;
}
std::string srcHash = Utils::hashFile(backupSrc);
std::string dstHash = Utils::hashFile(backupDst);
if (srcHash != dstHash) {
::remove(backupDst.c_str());
DEBUG_FUNCTION_LINE("Hashes do not match. %s %s", srcHash.c_str(), dstHash.c_str());
return FAILED_TO_CHECK_HASH_COPIED_FILES;
}
}
DEBUG_FUNCTION_LINE("Successfully backed up app files");
return SUCCESS;
}
InstallerService::eResults InstallerService::patchFST(const std::string &path, const char *fstHash) {
std::string fstFilePath = path + "/code/title.fst";
std::string fstBackupFilePath = path + "/code/backup.fst";

4
source/InstallerService.h
View File

@ -43,6 +43,8 @@ public:
return false;
}
static eResults backupAppFiles(const std::string &path);
static eResults patchCOS(const std::string &path, char *hash);
static eResults checkCOS(const std::string &path, char *hash);
@ -79,4 +81,4 @@ private:
static bool patchCOSXMLData(pugi::xml_document *doc);
static eResults checkFileHash(const std::string &filePath, const std::string &hash);
};
};