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// Copyright (c) 2012 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 "storage/browser/fileapi/file_system_dir_url_request_job.h"
#include <algorithm>
#include "base/bind.h"
#include "base/compiler_specific.h"
#include "base/message_loop/message_loop.h"
#include "base/strings/sys_string_conversions.h"
#include "base/strings/utf_string_conversions.h"
#include "base/time/time.h"
#include "build/build_config.h"
#include "net/base/io_buffer.h"
#include "net/base/net_util.h"
#include "net/url_request/url_request.h"
#include "storage/browser/fileapi/file_system_context.h"
#include "storage/browser/fileapi/file_system_operation_runner.h"
#include "storage/common/fileapi/directory_entry.h"
#include "storage/common/fileapi/file_system_util.h"
#include "url/gurl.h"
using net::NetworkDelegate;
using net::URLRequest;
using net::URLRequestJob;
using net::URLRequestStatus;
namespace storage {
FileSystemDirURLRequestJob::FileSystemDirURLRequestJob(
URLRequest* request,
NetworkDelegate* network_delegate,
const std::string& storage_domain,
FileSystemContext* file_system_context)
: URLRequestJob(request, network_delegate),
storage_domain_(storage_domain),
file_system_context_(file_system_context),
weak_factory_(this) {
}
FileSystemDirURLRequestJob::~FileSystemDirURLRequestJob() {
}
int FileSystemDirURLRequestJob::ReadRawData(net::IOBuffer* dest,
int dest_size) {
int count = std::min(dest_size, base::checked_cast<int>(data_.size()));
if (count > 0) {
memcpy(dest->data(), data_.data(), count);
data_.erase(0, count);
}
return count;
}
void FileSystemDirURLRequestJob::Start() {
base::MessageLoop::current()->PostTask(
FROM_HERE,
base::Bind(&FileSystemDirURLRequestJob::StartAsync,
weak_factory_.GetWeakPtr()));
}
void FileSystemDirURLRequestJob::Kill() {
URLRequestJob::Kill();
weak_factory_.InvalidateWeakPtrs();
}
bool FileSystemDirURLRequestJob::GetMimeType(std::string* mime_type) const {
*mime_type = "text/html";
return true;
}
bool FileSystemDirURLRequestJob::GetCharset(std::string* charset) {
*charset = "utf-8";
return true;
}
void FileSystemDirURLRequestJob::StartAsync() {
if (!request_)
return;
url_ = file_system_context_->CrackURL(request_->url());
if (!url_.is_valid()) {
file_system_context_->AttemptAutoMountForURLRequest(
request_,
storage_domain_,
base::Bind(&FileSystemDirURLRequestJob::DidAttemptAutoMount,
weak_factory_.GetWeakPtr()));
return;
}
if (!file_system_context_->CanServeURLRequest(url_)) {
// In incognito mode the API is not usable and there should be no data.
if (url_.is_valid() && VirtualPath::IsRootPath(url_.virtual_path())) {
// Return an empty directory if the filesystem root is queried.
DidReadDirectory(base::File::FILE_OK,
std::vector<DirectoryEntry>(),
false);
return;
}
NotifyStartError(URLRequestStatus::FromError(net::ERR_FILE_NOT_FOUND));
return;
}
file_system_context_->operation_runner()->ReadDirectory(
url_, base::Bind(&FileSystemDirURLRequestJob::DidReadDirectory,
weak_factory_.GetWeakPtr()));
}
void FileSystemDirURLRequestJob::DidAttemptAutoMount(base::File::Error result) {
if (result >= 0 &&
file_system_context_->CrackURL(request_->url()).is_valid()) {
StartAsync();
} else {
NotifyStartError(URLRequestStatus::FromError(net::ERR_FILE_NOT_FOUND));
}
}
void FileSystemDirURLRequestJob::DidReadDirectory(
base::File::Error result,
const std::vector<DirectoryEntry>& entries,
bool has_more) {
if (result != base::File::FILE_OK) {
int rv = net::ERR_FILE_NOT_FOUND;
if (result == base::File::FILE_ERROR_INVALID_URL)
rv = net::ERR_INVALID_URL;
NotifyStartError(URLRequestStatus::FromError(rv));
return;
}
if (!request_)
return;
if (data_.empty()) {
base::FilePath relative_path = url_.path();
#if defined(OS_POSIX)
relative_path =
base::FilePath(FILE_PATH_LITERAL("/") + relative_path.value());
#endif
const base::string16& title = relative_path.LossyDisplayName();
data_.append(net::GetDirectoryListingHeader(title));
}
entries_.insert(entries_.end(), entries.begin(), entries.end());
if (!has_more) {
if (entries_.size()) {
GetMetadata(0);
} else {
set_expected_content_size(data_.size());
NotifyHeadersComplete();
}
}
}
void FileSystemDirURLRequestJob::GetMetadata(size_t index) {
const DirectoryEntry& entry = entries_[index];
const FileSystemURL url = file_system_context_->CreateCrackedFileSystemURL(
url_.origin(), url_.type(),
url_.path().Append(base::FilePath(entry.name)));
DCHECK(url.is_valid());
file_system_context_->operation_runner()->GetMetadata(
url, FileSystemOperation::GET_METADATA_FIELD_SIZE |
FileSystemOperation::GET_METADATA_FIELD_LAST_MODIFIED,
base::Bind(&FileSystemDirURLRequestJob::DidGetMetadata,
weak_factory_.GetWeakPtr(), index));
}
void FileSystemDirURLRequestJob::DidGetMetadata(
size_t index,
base::File::Error result,
const base::File::Info& file_info) {
if (result != base::File::FILE_OK) {
int rv = net::ERR_FILE_NOT_FOUND;
if (result == base::File::FILE_ERROR_INVALID_URL)
rv = net::ERR_INVALID_URL;
NotifyStartError(URLRequestStatus(URLRequestStatus::FAILED, rv));
}
if (!request_)
return;
const DirectoryEntry& entry = entries_[index];
const base::string16& name = base::FilePath(entry.name).LossyDisplayName();
data_.append(net::GetDirectoryListingEntry(name, std::string(),
entry.is_directory, file_info.size,
file_info.last_modified));
if (index < entries_.size() - 1) {
GetMetadata(index + 1);
} else {
set_expected_content_size(data_.size());
NotifyHeadersComplete();
}
}
} // namespace storage
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