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// Copyright (c) 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/download_database.h"
#include <limits>
#include <vector>
#include "app/sql/connection.h"
#include "app/sql/statement.h"
#include "base/string_util.h"
#include "build/build_config.h"
#include "chrome/browser/download/download_manager.h"
#include "chrome/browser/history/download_types.h"
// Download schema:
//
// id SQLite-generated primary key.
// full_path Location of the download on disk.
// url URL of the downloaded file.
// start_time When the download was started.
// received_bytes Total size downloaded.
// total_bytes Total size of the download.
// state Identifies if this download is completed or not. Not used
// directly by the history system. See DownloadItem's
// DownloadState for where this is used.
namespace history {
namespace {
#if defined(OS_POSIX)
// Binds/reads the given file path to the given column of the given statement.
void BindFilePath(sql::Statement& statement, const FilePath& path, int col) {
statement.BindString(col, path.value());
}
FilePath ColumnFilePath(sql::Statement& statement, int col) {
return FilePath(statement.ColumnString(col));
}
#else
// See above.
void BindFilePath(sql::Statement& statement, const FilePath& path, int col) {
statement.BindString(col, UTF16ToUTF8(path.value()));
}
FilePath ColumnFilePath(sql::Statement& statement, int col) {
return FilePath(UTF8ToUTF16(statement.ColumnString(col)));
}
#endif
} // namespace
DownloadDatabase::DownloadDatabase() {
}
DownloadDatabase::~DownloadDatabase() {
}
bool DownloadDatabase::InitDownloadTable() {
if (!GetDB().DoesTableExist("downloads")) {
if (!GetDB().Execute(
"CREATE TABLE downloads ("
"id INTEGER PRIMARY KEY,"
"full_path LONGVARCHAR NOT NULL,"
"url LONGVARCHAR NOT NULL,"
"start_time INTEGER NOT NULL,"
"received_bytes INTEGER NOT NULL,"
"total_bytes INTEGER NOT NULL,"
"state INTEGER NOT NULL)"))
return false;
}
return true;
}
bool DownloadDatabase::DropDownloadTable() {
return GetDB().Execute("DROP TABLE downloads");
}
void DownloadDatabase::QueryDownloads(
std::vector<DownloadCreateInfo>* results) {
results->clear();
sql::Statement statement(GetDB().GetCachedStatement(SQL_FROM_HERE,
"SELECT id, full_path, url, start_time, received_bytes, "
"total_bytes, state "
"FROM downloads "
"ORDER BY start_time"));
if (!statement)
return;
while (statement.Step()) {
DownloadCreateInfo info;
info.db_handle = statement.ColumnInt64(0);
info.path = ColumnFilePath(statement, 1);
info.url = GURL(statement.ColumnString(2));
info.start_time = base::Time::FromTimeT(statement.ColumnInt64(3));
info.received_bytes = statement.ColumnInt64(4);
info.total_bytes = statement.ColumnInt64(5);
info.state = statement.ColumnInt(6);
results->push_back(info);
}
}
bool DownloadDatabase::UpdateDownload(int64 received_bytes,
int32 state,
DownloadID db_handle) {
DCHECK(db_handle > 0);
sql::Statement statement(GetDB().GetCachedStatement(SQL_FROM_HERE,
"UPDATE downloads "
"SET received_bytes=?, state=? WHERE id=?"));
if (!statement)
return false;
statement.BindInt64(0, received_bytes);
statement.BindInt(1, state);
statement.BindInt64(2, db_handle);
return statement.Run();
}
bool DownloadDatabase::UpdateDownloadPath(const std::wstring& path,
DownloadID db_handle) {
DCHECK(db_handle > 0);
sql::Statement statement(GetDB().GetCachedStatement(SQL_FROM_HERE,
"UPDATE downloads SET full_path=? WHERE id=?"));
if (!statement)
return false;
statement.BindString(0, WideToUTF8(path));
statement.BindInt64(1, db_handle);
return statement.Run();
}
int64 DownloadDatabase::CreateDownload(const DownloadCreateInfo& info) {
sql::Statement statement(GetDB().GetCachedStatement(SQL_FROM_HERE,
"INSERT INTO downloads "
"(full_path, url, start_time, received_bytes, total_bytes, state) "
"VALUES (?, ?, ?, ?, ?, ?)"));
if (!statement)
return 0;
BindFilePath(statement, info.path, 0);
statement.BindString(1, info.url.spec());
statement.BindInt64(2, info.start_time.ToTimeT());
statement.BindInt64(3, info.received_bytes);
statement.BindInt64(4, info.total_bytes);
statement.BindInt(5, info.state);
if (statement.Run())
return GetDB().GetLastInsertRowId();
return 0;
}
void DownloadDatabase::RemoveDownload(DownloadID db_handle) {
sql::Statement statement(GetDB().GetCachedStatement(SQL_FROM_HERE,
"DELETE FROM downloads WHERE id=?"));
if (!statement)
return;
statement.BindInt64(0, db_handle);
statement.Run();
}
void DownloadDatabase::RemoveDownloadsBetween(base::Time delete_begin,
base::Time delete_end) {
// This does not use an index. We currently aren't likely to have enough
// downloads where an index by time will give us a lot of benefit.
sql::Statement statement(GetDB().GetCachedStatement(SQL_FROM_HERE,
"DELETE FROM downloads WHERE start_time >= ? AND start_time < ? "
"AND (State = ? OR State = ?)"));
if (!statement)
return;
time_t start_time = delete_begin.ToTimeT();
time_t end_time = delete_end.ToTimeT();
statement.BindInt64(0, start_time);
statement.BindInt64(
1,
end_time ? end_time : std::numeric_limits<int64>::max());
statement.BindInt(2, DownloadItem::COMPLETE);
statement.BindInt(3, DownloadItem::CANCELLED);
statement.Run();
}
void DownloadDatabase::SearchDownloads(std::vector<int64>* results,
const std::wstring& search_text) {
sql::Statement statement(GetDB().GetCachedStatement(SQL_FROM_HERE,
"SELECT id FROM downloads WHERE url LIKE ? "
"OR full_path LIKE ? ORDER BY id"));
if (!statement)
return;
std::string text("%");
text.append(WideToUTF8(search_text));
text.push_back('%');
statement.BindString(0, text);
statement.BindString(1, text);
while (statement.Step())
results->push_back(statement.ColumnInt64(0));
}
} // namespace history
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