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// Copyright (c) 2008-2009 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/browser/history/history_publisher.h"
#include <atlsafe.h>
#include <objbase.h>
#include <oleauto.h>
#include <wtypes.h>
#include "base/scoped_bstr_win.h"
#include "base/scoped_comptr_win.h"
#include "base/scoped_variant_win.h"
#include "base/string_util.h"
#include "base/time.h"
#include "base/utf_string_conversions.h"
#include "base/win/registry.h"
#include "googleurl/src/gurl.h"
namespace {
// Instantiates a IChromeHistoryIndexer COM object. Takes a COM class id
// in |name| and returns the object in |indexer|. Returns false if the
// operation fails.
bool CoCreateIndexerFromName(const wchar_t* name,
IChromeHistoryIndexer** indexer) {
CLSID clsid;
HRESULT hr = CLSIDFromString(const_cast<wchar_t*>(name), &clsid);
if (FAILED(hr))
return false;
hr = CoCreateInstance(clsid, NULL, CLSCTX_INPROC,
__uuidof(IChromeHistoryIndexer),
reinterpret_cast<void**>(indexer));
if (FAILED(hr))
return false;
return true;
}
// Instantiates the registered indexers from the registry |root| + |path| key
// and adds them to the |indexers| list.
void AddRegisteredIndexers(HKEY root, const wchar_t* path,
std::vector< ScopedComPtr<IChromeHistoryIndexer> >* indexers) {
IChromeHistoryIndexer* indexer;
base::win::RegistryKeyIterator r_iter(root, path);
while (r_iter.Valid()) {
if (CoCreateIndexerFromName(r_iter.Name(), &indexer)) {
indexers->push_back(ScopedComPtr<IChromeHistoryIndexer>(indexer));
indexer->Release();
}
++r_iter;
}
}
} // namespace
namespace history {
const wchar_t* const HistoryPublisher::kRegKeyRegisteredIndexersInfo =
L"Software\\Google\\Google Chrome\\IndexerPlugins";
// static
double HistoryPublisher::TimeToUTCVariantTime(const base::Time& time) {
double var_time = 0;
if (!time.is_null()) {
base::Time::Exploded exploded;
time.UTCExplode(&exploded);
// Create the system time struct representing our exploded time.
SYSTEMTIME system_time;
system_time.wYear = exploded.year;
system_time.wMonth = exploded.month;
system_time.wDayOfWeek = exploded.day_of_week;
system_time.wDay = exploded.day_of_month;
system_time.wHour = exploded.hour;
system_time.wMinute = exploded.minute;
system_time.wSecond = exploded.second;
system_time.wMilliseconds = exploded.millisecond;
SystemTimeToVariantTime(&system_time, &var_time);
}
return var_time;
}
HistoryPublisher::HistoryPublisher() {
CoInitialize(NULL);
}
HistoryPublisher::~HistoryPublisher() {
CoUninitialize();
}
bool HistoryPublisher::Init() {
return ReadRegisteredIndexersFromRegistry();
}
// Peruse the registry for Indexer to instantiate and store in |indexers_|.
// Return true if we found at least one indexer object. We look both in HKCU
// and HKLM.
bool HistoryPublisher::ReadRegisteredIndexersFromRegistry() {
AddRegisteredIndexers(HKEY_CURRENT_USER,
kRegKeyRegisteredIndexersInfo, &indexers_);
AddRegisteredIndexers(HKEY_LOCAL_MACHINE,
kRegKeyRegisteredIndexersInfo, &indexers_);
return indexers_.size() > 0;
}
void HistoryPublisher::PublishDataToIndexers(const PageData& page_data)
const {
double var_time = TimeToUTCVariantTime(page_data.time);
CComSafeArray<unsigned char> thumbnail_arr;
if (page_data.thumbnail) {
for (size_t i = 0; i < page_data.thumbnail->size(); ++i)
thumbnail_arr.Add((*page_data.thumbnail)[i]);
}
// Send data to registered indexers.
ScopedVariant time(var_time, VT_DATE);
ScopedBstr url(ASCIIToWide(page_data.url.spec()).c_str());
ScopedBstr html(page_data.html);
ScopedBstr title(page_data.title);
// Don't send a NULL string through ASCIIToWide.
ScopedBstr format(page_data.thumbnail_format ?
ASCIIToWide(page_data.thumbnail_format).c_str() :
NULL);
ScopedVariant psa(thumbnail_arr.m_psa);
for (size_t i = 0; i < indexers_.size(); ++i) {
indexers_[i]->SendPageData(time, url, html, title, format, psa);
}
}
void HistoryPublisher::DeleteUserHistoryBetween(const base::Time& begin_time,
const base::Time& end_time)
const {
ScopedVariant var_begin_time(TimeToUTCVariantTime(begin_time), VT_DATE);
ScopedVariant var_end_time(TimeToUTCVariantTime(end_time), VT_DATE);
for (size_t i = 0; i < indexers_.size(); ++i) {
indexers_[i]->DeleteUserHistoryBetween(var_begin_time, var_end_time);
}
}
} // namespace history
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