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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/master_preferences.h"
#include "base/file_util.h"
#include "base/logging.h"
#include "base/path_service.h"
#include "base/string_util.h"
#include "chrome/common/json_value_serializer.h"
#include "chrome/installer/util/master_preferences_constants.h"
#include "chrome/installer/util/util_constants.h"
#include "googleurl/src/gurl.h"
namespace {
const char kDistroDict[] = "distribution";
const char kFirstRunTabs[] = "first_run_tabs";
bool GetGURLFromValue(const Value* in_value, GURL* out_value) {
if (!in_value || !out_value)
return false;
std::string url;
in_value->GetAsString(&url);
GURL gurl(url);
*out_value = gurl;
return true;
}
std::vector<GURL> GetNamedList(const char* name,
const DictionaryValue* prefs) {
std::vector<GURL> list;
if (!prefs)
return list;
ListValue* value_list = NULL;
if (!prefs->GetList(name, &value_list))
return list;
for (size_t i = 0; i < value_list->GetSize(); ++i) {
Value* entry;
GURL gurl_entry;
if (!value_list->Get(i, &entry) || !GetGURLFromValue(entry, &gurl_entry)) {
NOTREACHED();
break;
}
list.push_back(gurl_entry);
}
return list;
}
DictionaryValue* ParseDistributionPreferences(
const FilePath& master_prefs_path) {
std::string json_data;
if (!file_util::ReadFileToString(master_prefs_path, &json_data)) {
LOG(WARNING) << "Failed to read master prefs file. ";
return NULL;
}
JSONStringValueSerializer json(json_data);
std::string error;
scoped_ptr<Value> root(json.Deserialize(NULL, &error));
if (!root.get()) {
LOG(WARNING) << "Failed to parse master prefs file: " << error;
return NULL;
}
if (!root->IsType(Value::TYPE_DICTIONARY)) {
LOG(WARNING) << "Failed to parse master prefs file: "
<< "Root item must be a dictionary.";
return NULL;
}
return static_cast<DictionaryValue*>(root.release());
}
} // namespace
namespace installer_util {
MasterPreferences::MasterPreferences(const CommandLine& cmd_line)
: distribution_(NULL), preferences_read_from_file_(false) {
#if defined(OS_WIN)
if (cmd_line.HasSwitch(installer_util::switches::kInstallerData)) {
FilePath prefs_path(cmd_line.GetSwitchValuePath(
installer_util::switches::kInstallerData));
this->MasterPreferences::MasterPreferences(prefs_path);
} else {
master_dictionary_.reset(new DictionaryValue());
}
DCHECK(master_dictionary_.get());
// A simple map from command line switches to equivalent switches in the
// distribution dictionary. Currently all switches added will be set to
// 'true'.
static const struct CmdLineSwitchToDistributionSwitch {
const wchar_t* cmd_line_switch;
const char* distribution_switch;
} translate_switches[] = {
{ installer_util::switches::kChromeFrame,
installer_util::master_preferences::kChromeFrame },
{ installer_util::switches::kCreateAllShortcuts,
installer_util::master_preferences::kCreateAllShortcuts },
{ installer_util::switches::kDoNotCreateShortcuts,
installer_util::master_preferences::kDoNotCreateShortcuts },
{ installer_util::switches::kMsi,
installer_util::master_preferences::kMsi },
{ installer_util::switches::kDoNotRegisterForUpdateLaunch,
installer_util::master_preferences::kDoNotRegisterForUpdateLaunch },
{ installer_util::switches::kDoNotLaunchChrome,
installer_util::master_preferences::kDoNotLaunchChrome },
{ installer_util::switches::kMakeChromeDefault,
installer_util::master_preferences::kMakeChromeDefault },
{ installer_util::switches::kSystemLevel,
installer_util::master_preferences::kSystemLevel },
{ installer_util::switches::kVerboseLogging,
installer_util::master_preferences::kVerboseLogging },
{ installer_util::switches::kAltDesktopShortcut,
installer_util::master_preferences::kAltShortcutText },
};
std::string name(kDistroDict);
for (int i = 0; i < arraysize(translate_switches); ++i) {
if (cmd_line.HasSwitch(translate_switches[i].cmd_line_switch)) {
name.resize(arraysize(kDistroDict) - 1);
name.append(".").append(translate_switches[i].distribution_switch);
master_dictionary_->SetBoolean(name, true);
}
}
// Cache a pointer to the distribution dictionary. Ignore errors if any.
master_dictionary_->GetDictionary(kDistroDict, &distribution_);
#endif
}
MasterPreferences::MasterPreferences(const FilePath& prefs_path)
: distribution_(NULL), preferences_read_from_file_(false) {
master_dictionary_.reset(ParseDistributionPreferences(prefs_path));
LOG_IF(ERROR, !master_dictionary_.get()) << "Failed to parse "
<< prefs_path.value();
if (!master_dictionary_.get()) {
master_dictionary_.reset(new DictionaryValue());
} else {
preferences_read_from_file_ = true;
// Cache a pointer to the distribution dictionary.
master_dictionary_->GetDictionary(kDistroDict, &distribution_);
}
}
MasterPreferences::~MasterPreferences() {
}
bool MasterPreferences::GetBool(const std::string& name, bool* value) const {
bool ret = false;
if (distribution_)
ret = distribution_->GetBoolean(name, value);
return ret;
}
bool MasterPreferences::GetInt(const std::string& name, int* value) const {
bool ret = false;
if (distribution_)
ret = distribution_->GetInteger(name, value);
return ret;
}
bool MasterPreferences::GetString(const std::string& name,
std::string* value) const {
bool ret = false;
if (distribution_)
ret = (distribution_->GetString(name, value) && !value->empty());
return ret;
}
std::vector<GURL> MasterPreferences::GetFirstRunTabs() const {
return GetNamedList(kFirstRunTabs, master_dictionary_.get());
}
bool MasterPreferences::GetExtensionsBlock(DictionaryValue** extensions) const {
return master_dictionary_->GetDictionary(
master_preferences::kExtensionsBlock, extensions);
}
} // installer_util
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