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// Copyright 2013 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 "extensions/browser/management_policy.h"
namespace extensions {
namespace {
void GetExtensionNameAndId(const Extension* extension,
std::string* name,
std::string* id) {
// The extension may be NULL in testing.
*id = extension ? extension->id() : "[test]";
*name = extension ? extension->name() : "test";
}
} // namespace
ManagementPolicy::ManagementPolicy() {
}
ManagementPolicy::~ManagementPolicy() {
}
bool ManagementPolicy::Provider::UserMayLoad(const Extension* extension,
base::string16* error) const {
return true;
}
bool ManagementPolicy::Provider::UserMayModifySettings(
const Extension* extension, base::string16* error) const {
return true;
}
bool ManagementPolicy::Provider::MustRemainEnabled(const Extension* extension,
base::string16* error)
const {
return false;
}
bool ManagementPolicy::Provider::MustRemainDisabled(
const Extension* extension,
Extension::DisableReason* reason,
base::string16* error) const {
return false;
}
void ManagementPolicy::RegisterProvider(Provider* provider) {
providers_.insert(provider);
}
void ManagementPolicy::UnregisterProvider(Provider* provider) {
providers_.erase(provider);
}
bool ManagementPolicy::UserMayLoad(const Extension* extension,
base::string16* error) const {
return ApplyToProviderList(&Provider::UserMayLoad, "Installation",
true, extension, error);
}
bool ManagementPolicy::UserMayModifySettings(const Extension* extension,
base::string16* error) const {
return ApplyToProviderList(&Provider::UserMayModifySettings, "Modification",
true, extension, error);
}
bool ManagementPolicy::MustRemainEnabled(const Extension* extension,
base::string16* error) const {
return ApplyToProviderList(&Provider::MustRemainEnabled, "Disabling",
false, extension, error);
}
bool ManagementPolicy::MustRemainDisabled(const Extension* extension,
Extension::DisableReason* reason,
base::string16* error) const {
for (ProviderList::const_iterator it = providers_.begin();
it != providers_.end(); ++it)
if ((*it)->MustRemainDisabled(extension, reason, error))
return true;
return false;
}
void ManagementPolicy::UnregisterAllProviders() {
providers_.clear();
}
int ManagementPolicy::GetNumProviders() const {
return providers_.size();
}
bool ManagementPolicy::ApplyToProviderList(ProviderFunction function,
const char* debug_operation_name,
bool normal_result,
const Extension* extension,
base::string16* error) const {
for (ProviderList::const_iterator it = providers_.begin();
it != providers_.end(); ++it) {
const Provider* provider = *it;
bool result = (provider->*function)(extension, error);
if (result != normal_result) {
std::string id;
std::string name;
GetExtensionNameAndId(extension, &name, &id);
DVLOG(1) << debug_operation_name << " of extension " << name
<< " (" << id << ")"
<< " prohibited by " << provider->GetDebugPolicyProviderName();
return !normal_result;
}
}
return normal_result;
}
} // namespace extensions
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