base_file.cc revision 72a454cd3513ac24fbdd0e0cb9ad70b86a99b801
172a454cd3513ac24fbdd0e0cb9ad70b86a99b801Kristian Monsen// Copyright (c) 2011 The Chromium Authors. All rights reserved. 2bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen// Use of this source code is governed by a BSD-style license that can be 3bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen// found in the LICENSE file. 4bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen 5bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen#include "chrome/browser/download/base_file.h" 6bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen 772a454cd3513ac24fbdd0e0cb9ad70b86a99b801Kristian Monsen#include "base/crypto/secure_hash.h" 8bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen#include "base/file_util.h" 9bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen#include "base/logging.h" 10201ade2fbba22bfb27ae029f4d23fca6ded109a0Ben Murdoch#include "base/stringprintf.h" 11bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen#include "net/base/file_stream.h" 12bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen#include "net/base/net_errors.h" 13731df977c0511bca2206b5f333555b1205ff1f43Iain Merrick#include "chrome/browser/browser_thread.h" 14bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen#include "chrome/browser/download/download_util.h" 15bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen 16bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen#if defined(OS_WIN) 17bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen#include "chrome/common/win_safe_util.h" 18bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen#elif defined(OS_MACOSX) 1921d179b334e59e9a3bfcaed4c4430bef1bc5759dKristian Monsen#include "chrome/browser/ui/cocoa/file_metadata.h" 20bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen#endif 21bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen 22bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian MonsenBaseFile::BaseFile(const FilePath& full_path, 23bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen const GURL& source_url, 24bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen const GURL& referrer_url, 25bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen int64 received_bytes, 26bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen const linked_ptr<net::FileStream>& file_stream) 27bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen : full_path_(full_path), 28bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen path_renamed_(false), 29bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen source_url_(source_url), 30bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen referrer_url_(referrer_url), 31bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen file_stream_(file_stream), 32bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen bytes_so_far_(received_bytes), 3372a454cd3513ac24fbdd0e0cb9ad70b86a99b801Kristian Monsen power_save_blocker_(true), 3472a454cd3513ac24fbdd0e0cb9ad70b86a99b801Kristian Monsen calculate_hash_(false) { 35731df977c0511bca2206b5f333555b1205ff1f43Iain Merrick DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE)); 36bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen} 37bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen 38bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian MonsenBaseFile::~BaseFile() { 39731df977c0511bca2206b5f333555b1205ff1f43Iain Merrick DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE)); 40bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen if (in_progress()) 41bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen Cancel(); 42bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen Close(); 43bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen} 44bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen 4572a454cd3513ac24fbdd0e0cb9ad70b86a99b801Kristian Monsenbool BaseFile::Initialize(bool calculate_hash) { 46731df977c0511bca2206b5f333555b1205ff1f43Iain Merrick DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE)); 4772a454cd3513ac24fbdd0e0cb9ad70b86a99b801Kristian Monsen 4872a454cd3513ac24fbdd0e0cb9ad70b86a99b801Kristian Monsen calculate_hash_ = calculate_hash; 4972a454cd3513ac24fbdd0e0cb9ad70b86a99b801Kristian Monsen 5072a454cd3513ac24fbdd0e0cb9ad70b86a99b801Kristian Monsen if (calculate_hash_) 5172a454cd3513ac24fbdd0e0cb9ad70b86a99b801Kristian Monsen secure_hash_.reset(base::SecureHash::Create(base::SecureHash::SHA256)); 5272a454cd3513ac24fbdd0e0cb9ad70b86a99b801Kristian Monsen 53bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen if (!full_path_.empty() || 54bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen download_util::CreateTemporaryFileForDownload(&full_path_)) 55bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen return Open(); 56bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen return false; 57bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen} 58bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen 59bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsenbool BaseFile::AppendDataToFile(const char* data, size_t data_len) { 60731df977c0511bca2206b5f333555b1205ff1f43Iain Merrick DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE)); 61bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen 62bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen if (!file_stream_.get()) 63bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen return false; 64bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen 65bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen // TODO(phajdan.jr): get rid of this check. 66bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen if (data_len == 0) 67bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen return true; 68bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen 69bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen bytes_so_far_ += data_len; 70bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen 71731df977c0511bca2206b5f333555b1205ff1f43Iain Merrick // TODO(phajdan.jr): handle errors on file writes. http://crbug.com/58355 72bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen size_t written = file_stream_->Write(data, data_len, NULL); 7372a454cd3513ac24fbdd0e0cb9ad70b86a99b801Kristian Monsen if (written != data_len) 7472a454cd3513ac24fbdd0e0cb9ad70b86a99b801Kristian Monsen return false; 7572a454cd3513ac24fbdd0e0cb9ad70b86a99b801Kristian Monsen 7672a454cd3513ac24fbdd0e0cb9ad70b86a99b801Kristian Monsen if (calculate_hash_) 7772a454cd3513ac24fbdd0e0cb9ad70b86a99b801Kristian Monsen secure_hash_->Update(data, data_len); 7872a454cd3513ac24fbdd0e0cb9ad70b86a99b801Kristian Monsen 7972a454cd3513ac24fbdd0e0cb9ad70b86a99b801Kristian Monsen return true; 80bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen} 81bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen 82bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsenbool BaseFile::Rename(const FilePath& new_path, bool is_final_rename) { 83731df977c0511bca2206b5f333555b1205ff1f43Iain Merrick DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE)); 84bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen 85bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen // Save the information whether the download is in progress because 86bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen // it will be overwritten by closing the file. 87bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen bool saved_in_progress = in_progress(); 88bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen 89bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen // If the new path is same as the old one, there is no need to perform the 90bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen // following renaming logic. 91bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen if (new_path == full_path_) { 92bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen path_renamed_ = is_final_rename; 93bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen 94bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen // Don't close the file if we're not done (finished or canceled). 95bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen if (!saved_in_progress) 96bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen Close(); 97bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen 98bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen return true; 99bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen } 100bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen 101bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen Close(); 102bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen 103bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen file_util::CreateDirectory(new_path.DirName()); 104bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen 105bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen#if defined(OS_WIN) 106bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen // We cannot rename because rename will keep the same security descriptor 107bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen // on the destination file. We want to recreate the security descriptor 108bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen // with the security that makes sense in the new path. 109bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen if (!file_util::RenameFileAndResetSecurityDescriptor(full_path_, new_path)) 110bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen return false; 111bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen#elif defined(OS_POSIX) 112bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen { 113bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen // Similarly, on Unix, we're moving a temp file created with permissions 114bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen // 600 to |new_path|. Here, we try to fix up the destination file with 115bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen // appropriate permissions. 116bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen struct stat st; 117bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen // First check the file existence and create an empty file if it doesn't 118bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen // exist. 119bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen if (!file_util::PathExists(new_path)) 120bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen file_util::WriteFile(new_path, "", 0); 121bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen bool stat_succeeded = (stat(new_path.value().c_str(), &st) == 0); 122bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen 123bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen // TODO(estade): Move() falls back to copying and deleting when a simple 124bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen // rename fails. Copying sucks for large downloads. crbug.com/8737 125bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen if (!file_util::Move(full_path_, new_path)) 126bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen return false; 127bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen 128bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen if (stat_succeeded) 129bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen chmod(new_path.value().c_str(), st.st_mode); 130bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen } 131bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen#endif 132bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen 133bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen full_path_ = new_path; 134bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen path_renamed_ = is_final_rename; 135bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen 136bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen // We don't need to re-open the file if we're done (finished or canceled). 137bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen if (!saved_in_progress) 138bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen return true; 139bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen 140bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen if (!Open()) 141bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen return false; 142bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen 143bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen return true; 144bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen} 145bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen 146bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsenvoid BaseFile::Cancel() { 147731df977c0511bca2206b5f333555b1205ff1f43Iain Merrick DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE)); 148bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen Close(); 149bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen if (!full_path_.empty()) 150bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen file_util::Delete(full_path_, false); 151bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen} 152bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen 153bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsenvoid BaseFile::Finish() { 154731df977c0511bca2206b5f333555b1205ff1f43Iain Merrick DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE)); 15572a454cd3513ac24fbdd0e0cb9ad70b86a99b801Kristian Monsen 15672a454cd3513ac24fbdd0e0cb9ad70b86a99b801Kristian Monsen if (calculate_hash_) 15772a454cd3513ac24fbdd0e0cb9ad70b86a99b801Kristian Monsen secure_hash_->Finish(sha256_hash_, kSha256HashLen); 15872a454cd3513ac24fbdd0e0cb9ad70b86a99b801Kristian Monsen 159bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen Close(); 160bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen} 161bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen 16272a454cd3513ac24fbdd0e0cb9ad70b86a99b801Kristian Monsenbool BaseFile::GetSha256Hash(std::string* hash) { 16372a454cd3513ac24fbdd0e0cb9ad70b86a99b801Kristian Monsen if (!calculate_hash_ || in_progress()) 16472a454cd3513ac24fbdd0e0cb9ad70b86a99b801Kristian Monsen return false; 16572a454cd3513ac24fbdd0e0cb9ad70b86a99b801Kristian Monsen hash->assign(reinterpret_cast<const char*>(sha256_hash_), 16672a454cd3513ac24fbdd0e0cb9ad70b86a99b801Kristian Monsen sizeof(sha256_hash_)); 16772a454cd3513ac24fbdd0e0cb9ad70b86a99b801Kristian Monsen return true; 16872a454cd3513ac24fbdd0e0cb9ad70b86a99b801Kristian Monsen} 16972a454cd3513ac24fbdd0e0cb9ad70b86a99b801Kristian Monsen 170bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsenvoid BaseFile::AnnotateWithSourceInformation() { 171731df977c0511bca2206b5f333555b1205ff1f43Iain Merrick DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE)); 172bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen#if defined(OS_WIN) 173bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen // Sets the Zone to tell Windows that this file comes from the internet. 174bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen // We ignore the return value because a failure is not fatal. 175bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen win_util::SetInternetZoneIdentifier(full_path_); 176bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen#elif defined(OS_MACOSX) 177bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen file_metadata::AddQuarantineMetadataToFile(full_path_, source_url_, 178bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen referrer_url_); 179bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen file_metadata::AddOriginMetadataToFile(full_path_, source_url_, 180bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen referrer_url_); 181bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen#endif 182bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen} 183bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen 184bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsenbool BaseFile::Open() { 185731df977c0511bca2206b5f333555b1205ff1f43Iain Merrick DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE)); 186bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen DCHECK(!full_path_.empty()); 187bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen 188bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen // Create a new file steram if it is not provided. 189bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen if (!file_stream_.get()) { 190bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen file_stream_.reset(new net::FileStream); 191bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen if (file_stream_->Open(full_path_, 192bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen base::PLATFORM_FILE_OPEN_ALWAYS | 193bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen base::PLATFORM_FILE_WRITE) != net::OK) { 194bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen file_stream_.reset(); 195bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen return false; 196bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen } 197bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen 198bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen // We may be re-opening the file after rename. Always make sure we're 199bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen // writing at the end of the file. 200bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen if (file_stream_->Seek(net::FROM_END, 0) < 0) { 201bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen file_stream_.reset(); 202bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen return false; 203bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen } 204bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen } 205bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen 206bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen#if defined(OS_WIN) 207bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen AnnotateWithSourceInformation(); 208bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen#endif 209bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen return true; 210bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen} 211bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen 212bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsenvoid BaseFile::Close() { 213731df977c0511bca2206b5f333555b1205ff1f43Iain Merrick DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE)); 214bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen if (file_stream_.get()) { 215bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen#if defined(OS_CHROMEOS) 216bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen // Currently we don't really care about the return value, since if it fails 217bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen // theres not much we can do. But we might in the future. 218bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen file_stream_->Flush(); 219bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen#endif 220bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen file_stream_->Close(); 221bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen file_stream_.reset(); 222bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen } 223bda42a81ee5f9b20d2bebedcf0bbef1e30e5b293Kristian Monsen} 224201ade2fbba22bfb27ae029f4d23fca6ded109a0Ben Murdoch 225201ade2fbba22bfb27ae029f4d23fca6ded109a0Ben Murdochstd::string BaseFile::DebugString() const { 226201ade2fbba22bfb27ae029f4d23fca6ded109a0Ben Murdoch return base::StringPrintf("{ source_url_ = \"%s\" full_path_ = \"%s\" }", 227201ade2fbba22bfb27ae029f4d23fca6ded109a0Ben Murdoch source_url_.spec().c_str(), 228201ade2fbba22bfb27ae029f4d23fca6ded109a0Ben Murdoch full_path_.value().c_str()); 229201ade2fbba22bfb27ae029f4d23fca6ded109a0Ben Murdoch} 230