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// Copyright (c) 2010 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/installer/util/package.h"
#include "base/file_util.h"
#include "base/logging.h"
#include "base/utf_string_conversions.h"
#include "base/win/registry.h"
#include "chrome/installer/util/channel_info.h"
#include "chrome/installer/util/delete_tree_work_item.h"
#include "chrome/installer/util/google_update_constants.h"
#include "chrome/installer/util/master_preferences.h"
#include "chrome/installer/util/package_properties.h"
#include "chrome/installer/util/product.h"
using base::win::RegKey;
using installer::ChannelInfo;
using installer::MasterPreferences;
namespace installer {
Package::Package(bool system_level, const FilePath& path,
PackageProperties* properties)
: system_level_(system_level), path_(path), properties_(properties) {
DCHECK(properties_);
}
Package::~Package() {
}
const FilePath& Package::path() const {
return path_;
}
const Products& Package::products() const {
return products_;
}
PackageProperties* Package::properties() const {
return properties_;
}
bool Package::IsEqual(const FilePath& path) const {
return FilePath::CompareEqualIgnoreCase(path_.value(), path.value());
}
void Package::AssociateProduct(const Product* product) {
#ifndef NDEBUG
for (size_t i = 0; i < products_.size(); ++i) {
DCHECK_NE(product->distribution()->GetType(),
products_[i]->distribution()->GetType());
}
#endif
products_.push_back(product);
}
bool Package::system_level() const {
return system_level_;
}
FilePath Package::GetInstallerDirectory(
const Version& version) const {
return path_.Append(UTF8ToWide(version.GetString()))
.Append(installer::kInstallerDir);
}
Version* Package::GetCurrentVersion() const {
scoped_ptr<Version> current_version;
// Be aware that there might be a pending "new_chrome.exe" already in the
// installation path.
FilePath new_chrome_exe(path_.Append(installer::kChromeNewExe));
bool new_chrome_exists = file_util::PathExists(new_chrome_exe);
HKEY root = system_level_ ? HKEY_LOCAL_MACHINE : HKEY_CURRENT_USER;
for (size_t i = 0; i < products_.size(); ++i) {
const Product* product = products_[i];
RegKey chrome_key(root, product->distribution()->GetVersionKey().c_str(),
KEY_READ);
std::wstring version;
if (new_chrome_exists)
chrome_key.ReadValue(google_update::kRegOldVersionField, &version);
if (version.empty())
chrome_key.ReadValue(google_update::kRegVersionField, &version);
if (!version.empty()) {
scoped_ptr<Version> this_version(Version::GetVersionFromString(version));
if (this_version.get()) {
if (!current_version.get() ||
(current_version->CompareTo(*this_version) > 0)) {
current_version.reset(this_version.release());
} else if (current_version.get()) {
DCHECK_EQ(current_version->GetString(), this_version->GetString())
<< "found distributions of different versions in the same "
"installation folder!";
}
}
}
}
return current_version.release();
}
void Package::RemoveOldVersionDirectories(
const Version& latest_version) const {
file_util::FileEnumerator version_enum(path_, false,
file_util::FileEnumerator::DIRECTORIES);
scoped_ptr<Version> version;
// We try to delete all directories whose versions are lower than
// latest_version.
FilePath next_version = version_enum.Next();
while (!next_version.empty()) {
file_util::FileEnumerator::FindInfo find_data = {0};
version_enum.GetFindInfo(&find_data);
VLOG(1) << "directory found: " << find_data.cFileName;
version.reset(Version::GetVersionFromString(find_data.cFileName));
if (version.get() && (latest_version.CompareTo(*version) > 0)) {
std::vector<FilePath> key_files;
for (Products::const_iterator it = products_.begin();
it != products_.end(); ++it) {
BrowserDistribution* dist = it->get()->distribution();
std::vector<FilePath> dist_key_files(dist->GetKeyFiles());
std::vector<FilePath>::const_iterator key_file_iter(
dist_key_files.begin());
for (; key_file_iter != dist_key_files.end(); ++key_file_iter) {
key_files.push_back(next_version.Append(*key_file_iter));
}
}
VLOG(1) << "Deleting directory: " << next_version.value();
scoped_ptr<DeleteTreeWorkItem> item(
WorkItem::CreateDeleteTreeWorkItem(next_version, key_files));
if (!item->Do())
item->Rollback();
}
next_version = version_enum.Next();
}
}
size_t Package::GetMultiInstallDependencyCount() const {
BrowserDistribution::Type product_types[] = {
BrowserDistribution::CHROME_BROWSER,
BrowserDistribution::CHROME_FRAME,
};
const MasterPreferences& prefs = MasterPreferences::ForCurrentProcess();
HKEY root_key = system_level_ ? HKEY_LOCAL_MACHINE : HKEY_CURRENT_USER;
size_t ret = 0;
for (int i = 0; i < arraysize(product_types); ++i) {
BrowserDistribution* dist =
BrowserDistribution::GetSpecificDistribution(product_types[i], prefs);
// First see if the product is installed by checking its version key.
// If the key doesn't exist, the product isn't installed.
RegKey version_key(root_key, dist->GetVersionKey().c_str(), KEY_READ);
if (!version_key.Valid()) {
VLOG(1) << "Product not installed: " << dist->GetApplicationName();
} else {
RegKey key(root_key, dist->GetStateKey().c_str(), KEY_READ);
ChannelInfo channel_info;
if (channel_info.Initialize(key)) {
if (channel_info.IsMultiInstall()) {
VLOG(1) << "Product dependency: " << dist->GetApplicationName();
ret++;
} else {
VLOG(1) << "Product is installed, but not multi: "
<< dist->GetApplicationName();
}
} else {
LOG(INFO) << "Product missing 'ap' value: "
<< dist->GetApplicationName();
}
}
}
return ret;
}
} // namespace installer
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