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// Copyright (c) 2011 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 "base/logging.h"
#include "base/stl_util-inl.h"
#include "chrome/browser/extensions/extension_service.h"
#include "chrome/browser/extensions/pending_extension_manager.h"
#include "chrome/common/extensions/extension.h"
#include "content/browser/browser_thread.h"
namespace {
// Install predicate used by AddFromExternalUpdateUrl().
bool AlwaysInstall(const Extension& extension) {
return true;
}
} // namespace
PendingExtensionManager::PendingExtensionManager(
const ExtensionServiceInterface& service)
: service_(service) {
}
PendingExtensionManager::~PendingExtensionManager() {}
bool PendingExtensionManager::GetById(
const std::string& id,
PendingExtensionInfo* out_pending_extension_info) const {
PendingExtensionMap::const_iterator it = pending_extension_map_.find(id);
if (it != pending_extension_map_.end()) {
*out_pending_extension_info = it->second;
return true;
}
return false;
}
void PendingExtensionManager::Remove(const std::string& id) {
pending_extension_map_.erase(id);
}
bool PendingExtensionManager::IsIdPending(const std::string& id) const {
return ContainsKey(pending_extension_map_, id);
}
bool PendingExtensionManager::AddFromSync(
const std::string& id,
const GURL& update_url,
PendingExtensionInfo::ShouldAllowInstallPredicate should_allow_install,
bool install_silently) {
CHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
if (service_.GetInstalledExtension(id)) {
LOG(ERROR) << "Trying to add pending extension " << id
<< " which already exists";
return false;
}
const bool kIsFromSync = true;
const Extension::Location kSyncLocation = Extension::INTERNAL;
return AddExtensionImpl(id, update_url, should_allow_install,
kIsFromSync, install_silently, kSyncLocation);
}
void PendingExtensionManager::AddFromExternalUpdateUrl(
const std::string& id, const GURL& update_url,
Extension::Location location) {
CHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
const bool kIsFromSync = false;
const bool kInstallSilently = true;
if (service_.IsExternalExtensionUninstalled(id))
return;
if (service_.GetInstalledExtension(id)) {
LOG(DFATAL) << "Trying to add extension " << id
<< " by external update, but it is already installed.";
return;
}
AddExtensionImpl(id, update_url, &AlwaysInstall,
kIsFromSync, kInstallSilently,
location);
}
void PendingExtensionManager::AddFromExternalFile(
const std::string& id,
Extension::Location location) {
GURL kUpdateUrl = GURL();
bool kIsFromSync = false;
bool kInstallSilently = true;
pending_extension_map_[id] =
PendingExtensionInfo(kUpdateUrl,
&AlwaysInstall,
kIsFromSync,
kInstallSilently,
location);
}
bool PendingExtensionManager::AddExtensionImpl(
const std::string& id, const GURL& update_url,
PendingExtensionInfo::ShouldAllowInstallPredicate should_allow_install,
bool is_from_sync, bool install_silently,
Extension::Location install_source) {
CHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
// Will add a pending extension record unless this variable is set to false.
bool should_add_pending_record = true;
if (ContainsKey(pending_extension_map_, id)) {
// Bugs in this code will manifest as sporadic incorrect extension
// locations in situations where multiple install sources run at the
// same time. For example, on first login to a chrome os machine, an
// extension may be requested by sync sync and the default extension set.
// The following logging will help diagnose such issues.
VLOG(1) << "Extension id " << id
<< " was entered for update more than once."
<< " old location: " << pending_extension_map_[id].install_source()
<< " new location: " << install_source;
Extension::Location higher_priority_location =
Extension::GetHigherPriorityLocation(
install_source, pending_extension_map_[id].install_source());
if (higher_priority_location == install_source) {
VLOG(1) << "Overwrite existing record.";
} else {
VLOG(1) << "Keep existing record.";
should_add_pending_record = false;
}
}
if (should_add_pending_record) {
pending_extension_map_[id] = PendingExtensionInfo(
update_url,
should_allow_install,
is_from_sync,
install_silently,
install_source);
return true;
}
return false;
}
void PendingExtensionManager::AddForTesting(
const std::string& id,
const PendingExtensionInfo& pending_extension_info) {
pending_extension_map_[id] = pending_extension_info;
}
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