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
|
// Copyright (c) 2006-2008 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 "net/url_request/url_request_file_dir_job.h"
#include "base/file_util.h"
#include "base/message_loop.h"
#include "base/string_util.h"
#include "googleurl/src/gurl.h"
#include "net/base/net_util.h"
#include "net/base/wininet_util.h"
#include "net/url_request/url_request.h"
using std::string;
using std::wstring;
using net::WinInetUtil;
URLRequestFileDirJob::URLRequestFileDirJob(URLRequest* request,
const wstring& dir_path)
: URLRequestJob(request),
dir_path_(dir_path),
canceled_(false),
list_complete_(false),
wrote_header_(false),
read_pending_(false),
read_buffer_(NULL),
read_buffer_length_(0) {
}
URLRequestFileDirJob::~URLRequestFileDirJob() {
DCHECK(read_pending_ == false);
DCHECK(lister_ == NULL);
}
void URLRequestFileDirJob::Start() {
// Start reading asynchronously so that all error reporting and data
// callbacks happen as they would for network requests.
MessageLoop::current()->PostTask(FROM_HERE, NewRunnableMethod(
this, &URLRequestFileDirJob::StartAsync));
}
void URLRequestFileDirJob::StartAsync() {
DCHECK(!lister_);
// AddRef so that *this* cannot be destroyed while the lister_
// is trying to feed us data.
AddRef();
lister_ = new net::DirectoryLister(dir_path_, this);
lister_->Start();
NotifyHeadersComplete();
}
void URLRequestFileDirJob::Kill() {
if (canceled_)
return;
canceled_ = true;
// Don't call CloseLister or dispatch an error to the URLRequest because we
// want OnListDone to be called to also write the error to the output stream.
// OnListDone will notify the URLRequest at this time.
if (lister_)
lister_->Cancel();
}
bool URLRequestFileDirJob::ReadRawData(char* buf, int buf_size,
int *bytes_read) {
DCHECK(bytes_read);
*bytes_read = 0;
if (is_done())
return true;
if (FillReadBuffer(buf, buf_size, bytes_read))
return true;
// We are waiting for more data
read_pending_ = true;
read_buffer_ = buf;
read_buffer_length_ = buf_size;
SetStatus(URLRequestStatus(URLRequestStatus::IO_PENDING, 0));
return false;
}
bool URLRequestFileDirJob::GetMimeType(string* mime_type) {
*mime_type = "text/html";
return true;
}
bool URLRequestFileDirJob::GetCharset(string* charset) {
// All the filenames are converted to UTF-8 before being added.
*charset = "utf-8";
return true;
}
void URLRequestFileDirJob::OnListFile(const WIN32_FIND_DATA& data) {
FILETIME local_time;
FileTimeToLocalFileTime(&data.ftLastWriteTime, &local_time);
int64 size = (static_cast<unsigned __int64>(data.nFileSizeHigh) << 32) |
data.nFileSizeLow;
// We wait to write out the header until we get the first file, so that we
// can catch errors from DirectoryLister and show an error page.
if (!wrote_header_) {
data_.append(net::GetDirectoryListingHeader(WideToUTF8(dir_path_)));
wrote_header_ = true;
}
data_.append(net::GetDirectoryListingEntry(
WideToUTF8(data.cFileName), data.dwFileAttributes, size, &local_time));
// TODO(darin): coalesce more?
CompleteRead();
}
void URLRequestFileDirJob::OnListDone(int error) {
CloseLister();
if (error) {
read_pending_ = false;
NotifyDone(URLRequestStatus(URLRequestStatus::FAILED,
WinInetUtil::OSErrorToNetError(error)));
} else if (canceled_) {
read_pending_ = false;
NotifyCanceled();
} else {
list_complete_ = true;
CompleteRead();
}
Release(); // The Lister is finished; may delete *this*
}
void URLRequestFileDirJob::CloseLister() {
if (lister_) {
lister_->Cancel();
lister_->set_delegate(NULL);
lister_ = NULL;
}
}
bool URLRequestFileDirJob::FillReadBuffer(char *buf, int buf_size,
int *bytes_read) {
DCHECK(bytes_read);
*bytes_read = 0;
int count = std::min(buf_size, static_cast<int>(data_.size()));
if (count) {
memcpy(buf, &data_[0], count);
data_.erase(0, count);
*bytes_read = count;
return true;
} else if (list_complete_) {
// EOF
return true;
}
return false;
}
void URLRequestFileDirJob::CompleteRead() {
if (read_pending_) {
int bytes_read;
if (FillReadBuffer(read_buffer_, read_buffer_length_, &bytes_read)) {
// We completed the read, so reset the read buffer.
read_pending_ = false;
read_buffer_ = NULL;
read_buffer_length_ = 0;
SetStatus(URLRequestStatus());
NotifyReadComplete(bytes_read);
} else {
NOTREACHED();
NotifyDone(URLRequestStatus(URLRequestStatus::FAILED, 0)); // TODO: Better error code.
}
}
}
|
