qnetworkaccessfilebackend.cpp

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1/****************************************************************************-
2**-
3** Copyright (C) 2015 The Qt Company Ltd.-
4** Contact: http://www.qt.io/licensing/-
5**-
6** This file is part of the QtNetwork module of the Qt Toolkit.-
7**-
8** $QT_BEGIN_LICENSE:LGPL21$-
9** Commercial License Usage-
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13** a written agreement between you and The Qt Company. For licensing terms-
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15** information use the contact form at http://www.qt.io/contact-us.-
16**-
17** GNU Lesser General Public License Usage-
18** Alternatively, this file may be used under the terms of the GNU Lesser-
19** General Public License version 2.1 or version 3 as published by the Free-
20** Software Foundation and appearing in the file LICENSE.LGPLv21 and-
21** LICENSE.LGPLv3 included in the packaging of this file. Please review the-
22** following information to ensure the GNU Lesser General Public License-
23** requirements will be met: https://www.gnu.org/licenses/lgpl.html and-
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25**-
26** As a special exception, The Qt Company gives you certain additional-
27** rights. These rights are described in The Qt Company LGPL Exception-
28** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.-
29**-
30** $QT_END_LICENSE$-
31**-
32****************************************************************************/-
33-
34#include "qnetworkaccessfilebackend_p.h"-
35#include "qfileinfo.h"-
36#include "qurlinfo_p.h"-
37#include "qdir.h"-
38#include "private/qnoncontiguousbytedevice_p.h"-
39-
40#include <QtCore/QCoreApplication>-
41-
42QT_BEGIN_NAMESPACE-
43-
44QStringList QNetworkAccessFileBackendFactory::supportedSchemes() const-
45{-
46 QStringList schemes;-
47 schemes << QStringLiteral("file")
never executed: return qstring_literal_temp;
0
48 << QStringLiteral("qrc");
never executed: return qstring_literal_temp;
0
49#if defined(Q_OS_ANDROID)-
50 schemes << QStringLiteral("assets");-
51#endif-
52 return schemes;
never executed: return schemes;
0
53}-
54-
55QNetworkAccessBackend *-
56QNetworkAccessFileBackendFactory::create(QNetworkAccessManager::Operation op,-
57 const QNetworkRequest &request) const-
58{-
59 // is it an operation we know of?-
60 switch (op) {-
61 case QNetworkAccessManager::GetOperation:
executed 8 times by 1 test: case QNetworkAccessManager::GetOperation:
Executed by:
  • tst_QNetworkReply
8
62 case QNetworkAccessManager::PutOperation:
executed 39 times by 1 test: case QNetworkAccessManager::PutOperation:
Executed by:
  • tst_QNetworkReply
39
63 break;
executed 47 times by 1 test: break;
Executed by:
  • tst_QNetworkReply
47
64-
65 default:
never executed: default:
0
66 // no, we can't handle this operation-
67 return 0;
never executed: return 0;
0
68 }-
69-
70 QUrl url = request.url();-
71 if (url.scheme().compare(QLatin1String("qrc"), Qt::CaseInsensitive) == 0
url.scheme().c...ensitive) == 0Description
TRUEnever evaluated
FALSEevaluated 47 times by 1 test
Evaluated by:
  • tst_QNetworkReply
0-47
72#if defined(Q_OS_ANDROID)-
73 || url.scheme().compare(QLatin1String("assets"), Qt::CaseInsensitive) == 0-
74#endif-
75 || url.isLocalFile()) {
url.isLocalFile()Description
TRUEevaluated 39 times by 1 test
Evaluated by:
  • tst_QNetworkReply
FALSEevaluated 8 times by 1 test
Evaluated by:
  • tst_QNetworkReply
8-39
76 return new QNetworkAccessFileBackend;
executed 39 times by 1 test: return new QNetworkAccessFileBackend;
Executed by:
  • tst_QNetworkReply
39
77 } else if (!url.scheme().isEmpty() && url.authority().isEmpty() && (url.scheme().length() > 1)) {
!url.scheme().isEmpty()Description
TRUEevaluated 5 times by 1 test
Evaluated by:
  • tst_QNetworkReply
FALSEevaluated 3 times by 1 test
Evaluated by:
  • tst_QNetworkReply
url.authority().isEmpty()Description
TRUEevaluated 4 times by 1 test
Evaluated by:
  • tst_QNetworkReply
FALSEevaluated 1 time by 1 test
Evaluated by:
  • tst_QNetworkReply
(url.scheme().length() > 1)Description
TRUEevaluated 4 times by 1 test
Evaluated by:
  • tst_QNetworkReply
FALSEnever evaluated
0-5
78 // check if QFile could, in theory, open this URL via the file engines-
79 // it has to be in the format:-
80 // prefix:path/to/file-
81 // or prefix:/path/to/file-
82 //-
83 // this construct here must match the one below in open()-
84 QFileInfo fi(url.toString(QUrl::RemoveAuthority | QUrl::RemoveFragment | QUrl::RemoveQuery));-
85 if (fi.exists() || (op == QNetworkAccessManager::PutOperation && fi.dir().exists()))
fi.exists()Description
TRUEevaluated 4 times by 1 test
Evaluated by:
  • tst_QNetworkReply
FALSEnever evaluated
op == QNetwork...::PutOperationDescription
TRUEnever evaluated
FALSEnever evaluated
fi.dir().exists()Description
TRUEnever evaluated
FALSEnever evaluated
0-4
86 return new QNetworkAccessFileBackend;
executed 4 times by 1 test: return new QNetworkAccessFileBackend;
Executed by:
  • tst_QNetworkReply
4
87 }
never executed: end of block
0
88-
89 return 0;
executed 4 times by 1 test: return 0;
Executed by:
  • tst_QNetworkReply
4
90}-
91-
92QNetworkAccessFileBackend::QNetworkAccessFileBackend()-
93 : uploadByteDevice(0), totalBytes(0), hasUploadFinished(false)-
94{-
95}
executed 43 times by 1 test: end of block
Executed by:
  • tst_QNetworkReply
43
96-
97QNetworkAccessFileBackend::~QNetworkAccessFileBackend()-
98{-
99}-
100-
101void QNetworkAccessFileBackend::open()-
102{-
103 QUrl url = this->url();-
104-
105 if (url.host() == QLatin1String("localhost"))
url.host() == ...g("localhost")Description
TRUEnever evaluated
FALSEevaluated 43 times by 1 test
Evaluated by:
  • tst_QNetworkReply
0-43
106 url.setHost(QString());
never executed: url.setHost(QString());
0
107#if !defined(Q_OS_WIN)-
108 // do not allow UNC paths on Unix-
109 if (!url.host().isEmpty()) {
!url.host().isEmpty()Description
TRUEnever evaluated
FALSEevaluated 43 times by 1 test
Evaluated by:
  • tst_QNetworkReply
0-43
110 // we handle only local files-
111 error(QNetworkReply::ProtocolInvalidOperationError,-
112 QCoreApplication::translate("QNetworkAccessFileBackend", "Request for opening non-local file %1").arg(url.toString()));-
113 finished();-
114 return;
never executed: return;
0
115 }-
116#endif // !defined(Q_OS_WIN)-
117 if (url.path().isEmpty())
url.path().isEmpty()Description
TRUEnever evaluated
FALSEevaluated 43 times by 1 test
Evaluated by:
  • tst_QNetworkReply
0-43
118 url.setPath(QLatin1String("/"));
never executed: url.setPath(QLatin1String("/"));
0
119 setUrl(url);-
120-
121 QString fileName = url.toLocalFile();-
122 if (fileName.isEmpty()) {
fileName.isEmpty()Description
TRUEevaluated 4 times by 1 test
Evaluated by:
  • tst_QNetworkReply
FALSEevaluated 39 times by 1 test
Evaluated by:
  • tst_QNetworkReply
4-39
123 if (url.scheme() == QLatin1String("qrc")) {
url.scheme() =...1String("qrc")Description
TRUEnever evaluated
FALSEevaluated 4 times by 1 test
Evaluated by:
  • tst_QNetworkReply
0-4
124 fileName = QLatin1Char(':') + url.path();-
125 } else {
never executed: end of block
0
126#if defined(Q_OS_ANDROID)-
127 if (url.scheme() == QLatin1String("assets"))-
128 fileName = QLatin1String("assets:") + url.path();-
129 else-
130#endif-
131 fileName = url.toString(QUrl::RemoveAuthority | QUrl::RemoveFragment | QUrl::RemoveQuery);-
132 }
executed 4 times by 1 test: end of block
Executed by:
  • tst_QNetworkReply
4
133 }-
134 file.setFileName(fileName);-
135-
136 if (operation() == QNetworkAccessManager::GetOperation) {
operation() ==...::GetOperationDescription
TRUEevaluated 4 times by 1 test
Evaluated by:
  • tst_QNetworkReply
FALSEevaluated 39 times by 1 test
Evaluated by:
  • tst_QNetworkReply
4-39
137 if (!loadFileInfo())
!loadFileInfo()Description
TRUEnever evaluated
FALSEevaluated 4 times by 1 test
Evaluated by:
  • tst_QNetworkReply
0-4
138 return;
never executed: return;
0
139 }
executed 4 times by 1 test: end of block
Executed by:
  • tst_QNetworkReply
4
140-
141 QIODevice::OpenMode mode;-
142 switch (operation()) {-
143 case QNetworkAccessManager::GetOperation:
executed 4 times by 1 test: case QNetworkAccessManager::GetOperation:
Executed by:
  • tst_QNetworkReply
4
144 mode = QIODevice::ReadOnly;-
145 break;
executed 4 times by 1 test: break;
Executed by:
  • tst_QNetworkReply
4
146 case QNetworkAccessManager::PutOperation:
executed 39 times by 1 test: case QNetworkAccessManager::PutOperation:
Executed by:
  • tst_QNetworkReply
39
147 mode = QIODevice::WriteOnly | QIODevice::Truncate;-
148 uploadByteDevice = createUploadByteDevice();-
149 QObject::connect(uploadByteDevice, SIGNAL(readyRead()), this, SLOT(uploadReadyReadSlot()));-
150 QMetaObject::invokeMethod(this, "uploadReadyReadSlot", Qt::QueuedConnection);-
151 break;
executed 39 times by 1 test: break;
Executed by:
  • tst_QNetworkReply
39
152 default:
never executed: default:
0
153 Q_ASSERT_X(false, "QNetworkAccessFileBackend::open",-
154 "Got a request operation I cannot handle!!");-
155 return;
never executed: return;
0
156 }-
157-
158 mode |= QIODevice::Unbuffered;-
159 bool opened = file.open(mode);-
160-
161 // could we open the file?-
162 if (!opened) {
!openedDescription
TRUEnever evaluated
FALSEevaluated 43 times by 1 test
Evaluated by:
  • tst_QNetworkReply
0-43
163 QString msg = QCoreApplication::translate("QNetworkAccessFileBackend", "Error opening %1: %2")-
164 .arg(this->url().toString(), file.errorString());-
165-
166 // why couldn't we open the file?-
167 // if we're opening for reading, either it doesn't exist, or it's access denied-
168 // if we're opening for writing, not existing means it's access denied too-
169 if (file.exists() || operation() == QNetworkAccessManager::PutOperation)
file.exists()Description
TRUEnever evaluated
FALSEnever evaluated
operation() ==...::PutOperationDescription
TRUEnever evaluated
FALSEnever evaluated
0
170 error(QNetworkReply::ContentAccessDenied, msg);
never executed: error(QNetworkReply::ContentAccessDenied, msg);
0
171 else-
172 error(QNetworkReply::ContentNotFoundError, msg);
never executed: error(QNetworkReply::ContentNotFoundError, msg);
0
173 finished();-
174 }
never executed: end of block
0
175}
executed 43 times by 1 test: end of block
Executed by:
  • tst_QNetworkReply
43
176-
177void QNetworkAccessFileBackend::uploadReadyReadSlot()-
178{-
179 if (hasUploadFinished)
hasUploadFinishedDescription
TRUEevaluated 2 times by 1 test
Evaluated by:
  • tst_QNetworkReply
FALSEevaluated 124 times by 1 test
Evaluated by:
  • tst_QNetworkReply
2-124
180 return;
executed 2 times by 1 test: return;
Executed by:
  • tst_QNetworkReply
2
181-
182 forever {-
183 qint64 haveRead;-
184 const char *readPointer = uploadByteDevice->readPointer(-1, haveRead);-
185 if (haveRead == -1) {
haveRead == -1Description
TRUEevaluated 39 times by 1 test
Evaluated by:
  • tst_QNetworkReply
FALSEevaluated 672 times by 1 test
Evaluated by:
  • tst_QNetworkReply
39-672
186 // EOF-
187 hasUploadFinished = true;-
188 file.flush();-
189 file.close();-
190 finished();-
191 break;
executed 39 times by 1 test: break;
Executed by:
  • tst_QNetworkReply
39
192 } else if (haveRead == 0 || readPointer == 0) {
haveRead == 0Description
TRUEevaluated 85 times by 1 test
Evaluated by:
  • tst_QNetworkReply
FALSEevaluated 587 times by 1 test
Evaluated by:
  • tst_QNetworkReply
readPointer == 0Description
TRUEnever evaluated
FALSEevaluated 587 times by 1 test
Evaluated by:
  • tst_QNetworkReply
0-587
193 // nothing to read right now, we will be called again later-
194 break;
executed 85 times by 1 test: break;
Executed by:
  • tst_QNetworkReply
85
195 } else {-
196 qint64 haveWritten;-
197 haveWritten = file.write(readPointer, haveRead);-
198-
199 if (haveWritten < 0) {
haveWritten < 0Description
TRUEnever evaluated
FALSEevaluated 587 times by 1 test
Evaluated by:
  • tst_QNetworkReply
0-587
200 // write error!-
201 QString msg = QCoreApplication::translate("QNetworkAccessFileBackend", "Write error writing to %1: %2")-
202 .arg(url().toString(), file.errorString());-
203 error(QNetworkReply::ProtocolFailure, msg);-
204-
205 finished();-
206 return;
never executed: return;
0
207 } else {-
208 uploadByteDevice->advanceReadPointer(haveWritten);-
209 }
executed 587 times by 1 test: end of block
Executed by:
  • tst_QNetworkReply
587
210-
211-
212 file.flush();-
213 }
executed 587 times by 1 test: end of block
Executed by:
  • tst_QNetworkReply
587
214 }-
215}
executed 124 times by 1 test: end of block
Executed by:
  • tst_QNetworkReply
124
216-
217void QNetworkAccessFileBackend::closeDownstreamChannel()-
218{-
219 if (operation() == QNetworkAccessManager::GetOperation) {
operation() ==...::GetOperationDescription
TRUEnever evaluated
FALSEnever evaluated
0
220 file.close();-
221 }
never executed: end of block
0
222}
never executed: end of block
0
223-
224void QNetworkAccessFileBackend::downstreamReadyWrite()-
225{-
226 Q_ASSERT_X(operation() == QNetworkAccessManager::GetOperation, "QNetworkAccessFileBackend",-
227 "We're being told to download data but operation isn't GET!");-
228-
229 readMoreFromFile();-
230}
executed 4 times by 1 test: end of block
Executed by:
  • tst_QNetworkReply
4
231-
232bool QNetworkAccessFileBackend::loadFileInfo()-
233{-
234 QFileInfo fi(file);-
235 setHeader(QNetworkRequest::LastModifiedHeader, fi.lastModified());-
236 setHeader(QNetworkRequest::ContentLengthHeader, fi.size());-
237-
238 // signal we're open-
239 metaDataChanged();-
240-
241 if (fi.isDir()) {
fi.isDir()Description
TRUEnever evaluated
FALSEevaluated 4 times by 1 test
Evaluated by:
  • tst_QNetworkReply
0-4
242 error(QNetworkReply::ContentOperationNotPermittedError,-
243 QCoreApplication::translate("QNetworkAccessFileBackend", "Cannot open %1: Path is a directory").arg(url().toString()));-
244 finished();-
245 return false;
never executed: return false;
0
246 }-
247-
248 return true;
executed 4 times by 1 test: return true;
Executed by:
  • tst_QNetworkReply
4
249}-
250-
251bool QNetworkAccessFileBackend::readMoreFromFile()-
252{-
253 qint64 wantToRead;-
254 while ((wantToRead = nextDownstreamBlockSize()) > 0) {
(wantToRead = ...ockSize()) > 0Description
TRUEevaluated 38 times by 1 test
Evaluated by:
  • tst_QNetworkReply
FALSEnever evaluated
0-38
255 // ### FIXME!!-
256 // Obtain a pointer from the ringbuffer!-
257 // Avoid extra copy-
258 QByteArray data;-
259 data.reserve(wantToRead);-
260 qint64 actuallyRead = file.read(data.data(), wantToRead);-
261 if (actuallyRead <= 0) {
actuallyRead <= 0Description
TRUEevaluated 4 times by 1 test
Evaluated by:
  • tst_QNetworkReply
FALSEevaluated 34 times by 1 test
Evaluated by:
  • tst_QNetworkReply
4-34
262 // EOF or error-
263 if (file.error() != QFile::NoError) {
file.error() != QFile::NoErrorDescription
TRUEnever evaluated
FALSEevaluated 4 times by 1 test
Evaluated by:
  • tst_QNetworkReply
0-4
264 QString msg = QCoreApplication::translate("QNetworkAccessFileBackend", "Read error reading from %1: %2")-
265 .arg(url().toString(), file.errorString());-
266 error(QNetworkReply::ProtocolFailure, msg);-
267-
268 finished();-
269 return false;
never executed: return false;
0
270 }-
271-
272 finished();-
273 return true;
executed 4 times by 1 test: return true;
Executed by:
  • tst_QNetworkReply
4
274 }-
275-
276 data.resize(actuallyRead);-
277 totalBytes += actuallyRead;-
278-
279 QByteDataBuffer list;-
280 list.append(data);-
281 data.clear(); // important because of implicit sharing!-
282 writeDownstreamData(list);-
283 }
executed 34 times by 1 test: end of block
Executed by:
  • tst_QNetworkReply
34
284 return true;
never executed: return true;
0
285}-
286-
287QT_END_NAMESPACE-
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