1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
|
// 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
|