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// Copyright (c) 2011 The Chromium OS 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 "shill/key_file_store.h"
#include <base/file_util.h>
#include <base/logging.h>
using std::set;
using std::string;
using std::vector;
namespace shill {
KeyFileStore::KeyFileStore(GLib *glib)
: glib_(glib),
crypto_(glib),
key_file_(NULL) {}
KeyFileStore::~KeyFileStore() {
ReleaseKeyFile();
}
void KeyFileStore::ReleaseKeyFile() {
if (key_file_) {
glib_->KeyFileFree(key_file_);
key_file_ = NULL;
}
}
bool KeyFileStore::Open() {
CHECK(!path_.empty());
CHECK(!key_file_);
crypto_.Init();
key_file_ = glib_->KeyFileNew();
int64 file_size = 0;
if (!file_util::GetFileSize(path_, &file_size) || file_size == 0) {
LOG(INFO) << "Creating a new key file at " << path_.value();
return true;
}
GError *error = NULL;
if (glib_->KeyFileLoadFromFile(
key_file_,
path_.value().c_str(),
static_cast<GKeyFileFlags>(G_KEY_FILE_KEEP_COMMENTS |
G_KEY_FILE_KEEP_TRANSLATIONS),
&error)) {
return true;
}
LOG(ERROR) << "Failed to load key file from " << path_.value() << ": "
<< glib_->ConvertErrorToMessage(error);
ReleaseKeyFile();
return false;
}
bool KeyFileStore::Close() {
CHECK(key_file_);
GError *error = NULL;
gsize length = 0;
gchar *data = glib_->KeyFileToData(key_file_, &length, &error);
ReleaseKeyFile();
bool success = true;
if (path_.empty()) {
LOG(ERROR) << "Empty key file path.";
success = false;
}
if (success && (!data || error)) {
LOG(ERROR) << "Failed to convert key file to string: "
<< glib_->ConvertErrorToMessage(error);
success = false;
}
if (success) {
int written = file_util::WriteFile(path_, data, length);
if (written < 0 ||
static_cast<unsigned int>(written) != length) {
LOG(ERROR) << "Failed to store key file: " << path_.value();
success = false;
}
}
glib_->Free(data);
return success;
}
set<string> KeyFileStore::GetGroups() {
CHECK(key_file_);
gsize length = 0;
gchar **groups = g_key_file_get_groups(key_file_, &length);
if (!groups) {
LOG(ERROR) << "Unable to obtain groups.";
return set<string>();
}
set<string> group_set(groups, groups + length);
glib_->Strfreev(groups);
return group_set;
}
bool KeyFileStore::ContainsGroup(const string &group) {
CHECK(key_file_);
return glib_->KeyFileHasGroup(key_file_, group.c_str());
}
bool KeyFileStore::DeleteKey(const string &group, const string &key) {
CHECK(key_file_);
GError *error = NULL;
glib_->KeyFileRemoveKey(key_file_, group.c_str(), key.c_str(), &error);
if (error) {
LOG(ERROR) << "Failed to delete (" << group << ":" << key << "): "
<< glib_->ConvertErrorToMessage(error);
return false;
}
return true;
}
bool KeyFileStore::DeleteGroup(const string &group) {
CHECK(key_file_);
GError *error = NULL;
glib_->KeyFileRemoveGroup(key_file_, group.c_str(), &error);
if (error) {
LOG(ERROR) << "Failed to delete group " << group << ": "
<< glib_->ConvertErrorToMessage(error);
return false;
}
return true;
}
bool KeyFileStore::GetString(const string &group,
const string &key,
string *value) {
CHECK(key_file_);
GError *error = NULL;
gchar *data =
glib_->KeyFileGetString(key_file_, group.c_str(), key.c_str(), &error);
if (!data) {
LOG(ERROR) << "Failed to lookup (" << group << ":" << key << "): "
<< glib_->ConvertErrorToMessage(error);
return false;
}
if (value) {
*value = data;
}
glib_->Free(data);
return true;
}
bool KeyFileStore::SetString(const string &group,
const string &key,
const string &value) {
CHECK(key_file_);
glib_->KeyFileSetString(key_file_, group.c_str(), key.c_str(), value.c_str());
return true;
}
bool KeyFileStore::GetBool(const string &group,
const string &key,
bool *value) {
CHECK(key_file_);
GError *error = NULL;
gboolean data =
glib_->KeyFileGetBoolean(key_file_, group.c_str(), key.c_str(), &error);
if (error) {
LOG(ERROR) << "Failed to lookup (" << group << ":" << key << "): "
<< glib_->ConvertErrorToMessage(error);
return false;
}
if (value) {
*value = data;
}
return true;
}
bool KeyFileStore::SetBool(const string &group, const string &key, bool value) {
CHECK(key_file_);
glib_->KeyFileSetBoolean(key_file_,
group.c_str(),
key.c_str(),
value ? TRUE : FALSE);
return true;
}
bool KeyFileStore::GetInt(const string &group, const string &key, int *value) {
CHECK(key_file_);
GError *error = NULL;
gint data =
glib_->KeyFileGetInteger(key_file_, group.c_str(), key.c_str(), &error);
if (error) {
LOG(ERROR) << "Failed to lookup (" << group << ":" << key << "): "
<< glib_->ConvertErrorToMessage(error);
return false;
}
if (value) {
*value = data;
}
return true;
}
bool KeyFileStore::SetInt(const string &group, const string &key, int value) {
CHECK(key_file_);
glib_->KeyFileSetInteger(key_file_, group.c_str(), key.c_str(), value);
return true;
}
bool KeyFileStore::GetStringList(const string &group,
const string &key,
vector<string> *value) {
CHECK(key_file_);
gsize length = 0;
GError *error = NULL;
gchar **data = glib_->KeyFileGetStringList(key_file_,
group.c_str(),
key.c_str(),
&length,
&error);
if (!data) {
LOG(ERROR) << "Failed to lookup (" << group << ":" << key << "): "
<< glib_->ConvertErrorToMessage(error);
return false;
}
if (value) {
value->assign(data, data + length);
}
glib_->Strfreev(data);
return true;
}
bool KeyFileStore::SetStringList(const string &group,
const string &key,
const vector<string> &value) {
CHECK(key_file_);
vector<const char *> list;
for (vector<string>::const_iterator it = value.begin();
it != value.end(); ++it) {
list.push_back(it->c_str());
}
glib_->KeyFileSetStringList(key_file_,
group.c_str(),
key.c_str(),
list.data(),
list.size());
return true;
}
bool KeyFileStore::GetCryptedString(const string &group,
const string &key,
string *value) {
if (!GetString(group, key, value)) {
return false;
}
if (value) {
*value = crypto_.Decrypt(*value);
}
return true;
}
bool KeyFileStore::SetCryptedString(const string &group,
const string &key,
const string &value) {
return SetString(group, key, crypto_.Encrypt(value));
}
} // namespace shill
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