1 | /* |
2 | This file is part of the KDE project |
3 | SPDX-FileCopyrightText: 2004 David Faure <faure@kde.org> |
4 | |
5 | SPDX-License-Identifier: LGPL-2.0-or-later |
6 | */ |
7 | |
8 | #include "trashimpl.h" |
9 | #include "discspaceutil.h" |
10 | #include "kiotrashdebug.h" |
11 | #include "trashsizecache.h" |
12 | |
13 | #include "../utils_p.h" |
14 | #include <kdirnotify.h> |
15 | #include <kfileitem.h> |
16 | #include <kio/chmodjob.h> |
17 | #include <kio/copyjob.h> |
18 | #include <kio/deletejob.h> |
19 | #include <kmountpoint.h> |
20 | |
21 | #include <KConfigGroup> |
22 | #include <KFileUtils> |
23 | #include <KJobUiDelegate> |
24 | #include <KLocalizedString> |
25 | #include <KSharedConfig> |
26 | #include <solid/block.h> |
27 | #include <solid/device.h> |
28 | #include <solid/networkshare.h> |
29 | #include <solid/storageaccess.h> |
30 | |
31 | #include <QCoreApplication> |
32 | #include <QDebug> |
33 | #include <QDir> |
34 | #include <QEventLoop> |
35 | #include <QFile> |
36 | #include <QLockFile> |
37 | #include <QStandardPaths> |
38 | #include <QUrl> |
39 | |
40 | #include <cerrno> |
41 | #include <dirent.h> |
42 | #include <fcntl.h> |
43 | #include <stdlib.h> |
44 | #include <sys/param.h> |
45 | #include <sys/stat.h> |
46 | #include <sys/types.h> |
47 | #include <unistd.h> |
48 | |
49 | TrashImpl::TrashImpl() |
50 | : QObject() |
51 | , m_lastErrorCode(0) |
52 | , m_initStatus(InitToBeDone) |
53 | , m_homeDevice(0) |
54 | , m_trashDirectoriesScanned(false) |
55 | , |
56 | // not using kio_trashrc since KIO uses that one already for kio_trash |
57 | // so better have a separate one, for faster parsing by e.g. kmimetype.cpp |
58 | m_config(QStringLiteral("trashrc" ), KConfig::SimpleConfig) |
59 | { |
60 | QT_STATBUF buff; |
61 | if (QT_LSTAT(file: QFile::encodeName(fileName: QDir::homePath()).constData(), buf: &buff) == 0) { |
62 | m_homeDevice = buff.st_dev; |
63 | } else { |
64 | qCWarning(KIO_TRASH) << "Should never happen: couldn't stat $HOME" << strerror(errno); |
65 | } |
66 | } |
67 | |
68 | /*! |
69 | * Test if a directory exists, create otherwise |
70 | * \a _name full path of the directory |
71 | * Returns errorcode, or 0 if the dir was created or existed already |
72 | * Warning, don't use return value like a bool |
73 | */ |
74 | int TrashImpl::testDir(const QString &_name) const |
75 | { |
76 | DIR *dp = ::opendir(name: QFile::encodeName(fileName: _name).constData()); |
77 | if (!dp) { |
78 | QString name = Utils::trailingSlashRemoved(s: _name); |
79 | |
80 | bool ok = QDir().mkdir(dirName: name); |
81 | if (!ok && QFile::exists(fileName: name)) { |
82 | QString new_name = name; |
83 | name.append(QStringLiteral(".orig" )); |
84 | if (QFile::rename(oldName: name, newName: new_name)) { |
85 | ok = QDir().mkdir(dirName: name); |
86 | } else { // foo.orig existed already. How likely is that? |
87 | ok = false; |
88 | } |
89 | if (!ok) { |
90 | return KIO::ERR_DIR_ALREADY_EXIST; |
91 | } |
92 | } |
93 | if (!ok) { |
94 | // KMessageBox::sorry( 0, i18n( "Could not create directory %1. Check for permissions." ).arg( name ) ); |
95 | qCWarning(KIO_TRASH) << "could not create" << name; |
96 | return KIO::ERR_CANNOT_MKDIR; |
97 | } else { |
98 | // qCDebug(KIO_TRASH) << name << "created."; |
99 | } |
100 | } else { // exists already |
101 | closedir(dirp: dp); |
102 | } |
103 | return 0; // success |
104 | } |
105 | |
106 | void TrashImpl::deleteEmptyTrashInfrastructure() |
107 | { |
108 | #ifdef Q_OS_OSX |
109 | // For each known trash directory... |
110 | if (!m_trashDirectoriesScanned) { |
111 | scanTrashDirectories(); |
112 | } |
113 | |
114 | for (auto it = m_trashDirectories.cbegin(); it != m_trashDirectories.cend(); ++it) { |
115 | const QString trashPath = it.value(); |
116 | QString infoPath = trashPath + QLatin1String("/info" ); |
117 | |
118 | // qCDebug(KIO_TRASH) << "empty Trash" << trashPath << "; removing infrastructure"; |
119 | synchronousDel(infoPath, false, true); |
120 | synchronousDel(trashPath + QLatin1String("/files" ), false, true); |
121 | if (trashPath.endsWith(QLatin1String("/KDE.trash" ))) { |
122 | synchronousDel(trashPath, false, true); |
123 | } |
124 | } |
125 | #endif |
126 | } |
127 | |
128 | bool TrashImpl::createTrashInfrastructure(int trashId, const QString &path) |
129 | { |
130 | const QString trashDir = path.isEmpty() ? trashDirectoryPath(trashId) : path; |
131 | if (const int err = testDir(name: trashDir)) { |
132 | error(e: err, s: trashDir); |
133 | return false; |
134 | } |
135 | |
136 | const QString infoDir = trashDir + QLatin1String("/info" ); |
137 | if (const int err = testDir(name: infoDir)) { |
138 | error(e: err, s: infoDir); |
139 | return false; |
140 | } |
141 | |
142 | const QString filesDir = trashDir + QLatin1String("/files" ); |
143 | if (const int err = testDir(name: filesDir)) { |
144 | error(e: err, s: filesDir); |
145 | return false; |
146 | } |
147 | |
148 | return true; |
149 | } |
150 | |
151 | bool TrashImpl::init() |
152 | { |
153 | if (m_initStatus == InitOK) { |
154 | return true; |
155 | } |
156 | if (m_initStatus == InitError) { |
157 | return false; |
158 | } |
159 | |
160 | // Check the trash directory and its info and files subdirs |
161 | // see also kdesktop/init.cc for first time initialization |
162 | m_initStatus = InitError; |
163 | #ifndef Q_OS_OSX |
164 | // $XDG_DATA_HOME/Trash, i.e. ~/.local/share/Trash by default. |
165 | const QString xdgDataDir = QStandardPaths::writableLocation(type: QStandardPaths::GenericDataLocation) + QLatin1Char('/'); |
166 | if (!QDir().mkpath(dirPath: xdgDataDir)) { |
167 | qCWarning(KIO_TRASH) << "failed to create" << xdgDataDir; |
168 | return false; |
169 | } |
170 | |
171 | const QString trashDir = xdgDataDir + QLatin1String("Trash" ); |
172 | if (!createTrashInfrastructure(trashId: 0, path: trashDir)) { |
173 | return false; |
174 | } |
175 | #else |
176 | // we DO NOT create ~/.Trash on OS X, that's the operating system's privilege |
177 | QString trashDir = QDir::homePath() + QLatin1String("/.Trash" ); |
178 | if (!QFileInfo(trashDir).isDir()) { |
179 | error(KIO::ERR_DOES_NOT_EXIST, trashDir); |
180 | return false; |
181 | } |
182 | trashDir += QLatin1String("/KDE.trash" ); |
183 | // we don't have to call createTrashInfrastructure() here because it'll be called when needed. |
184 | #endif |
185 | m_trashDirectories.insert(key: 0, value: trashDir); |
186 | m_initStatus = InitOK; |
187 | // qCDebug(KIO_TRASH) << "initialization OK, home trash dir:" << trashDir; |
188 | return true; |
189 | } |
190 | |
191 | void TrashImpl::migrateOldTrash() |
192 | { |
193 | qCDebug(KIO_TRASH); |
194 | |
195 | KConfigGroup g(KSharedConfig::openConfig(), QStringLiteral("Paths" )); |
196 | const QString oldTrashDir = g.readPathEntry(key: "Trash" , aDefault: QString()); |
197 | |
198 | if (oldTrashDir.isEmpty()) { |
199 | return; |
200 | } |
201 | |
202 | const QStringList entries = listDir(physicalPath: oldTrashDir); |
203 | bool allOK = true; |
204 | for (QString srcPath : entries) { |
205 | if (srcPath == QLatin1Char('.') || srcPath == QLatin1String(".." ) || srcPath == QLatin1String(".directory" )) { |
206 | continue; |
207 | } |
208 | srcPath.prepend(s: oldTrashDir); // make absolute |
209 | int trashId; |
210 | QString fileId; |
211 | if (!createInfo(origPath: srcPath, trashId, fileId)) { |
212 | qCWarning(KIO_TRASH) << "Trash migration: failed to create info for" << srcPath; |
213 | allOK = false; |
214 | } else { |
215 | bool ok = moveToTrash(origPath: srcPath, trashId, fileId); |
216 | if (!ok) { |
217 | (void)deleteInfo(trashId, fileId); |
218 | qCWarning(KIO_TRASH) << "Trash migration: failed to create info for" << srcPath; |
219 | allOK = false; |
220 | } else { |
221 | qCDebug(KIO_TRASH) << "Trash migration: moved" << srcPath; |
222 | } |
223 | } |
224 | } |
225 | if (allOK) { |
226 | // We need to remove the old one, otherwise the desktop will have two trashcans... |
227 | qCDebug(KIO_TRASH) << "Trash migration: all OK, removing old trash directory" ; |
228 | synchronousDel(path: oldTrashDir, setLastErrorCode: false, isDir: true); |
229 | } |
230 | } |
231 | |
232 | bool TrashImpl::createInfo(const QString &origPath, int &trashId, QString &fileId) |
233 | { |
234 | // off_t should be 64bit on Unix systems to have large file support |
235 | // FIXME: on windows this gets disabled until trash gets integrated |
236 | // BUG: 165449 |
237 | #ifndef Q_OS_WIN |
238 | Q_STATIC_ASSERT(sizeof(off_t) >= 8); |
239 | #endif |
240 | |
241 | // qCDebug(KIO_TRASH) << origPath; |
242 | // Check source |
243 | QT_STATBUF buff_src; |
244 | if (QT_LSTAT(file: QFile::encodeName(fileName: origPath).constData(), buf: &buff_src) == -1) { |
245 | if (errno == EACCES) { |
246 | error(e: KIO::ERR_ACCESS_DENIED, s: origPath); |
247 | } else { |
248 | error(e: KIO::ERR_DOES_NOT_EXIST, s: origPath); |
249 | } |
250 | return false; |
251 | } |
252 | |
253 | // Choose destination trash |
254 | trashId = findTrashDirectory(origPath); |
255 | if (trashId < 0) { |
256 | qCWarning(KIO_TRASH) << "OUCH - internal error, TrashImpl::findTrashDirectory returned" << trashId; |
257 | return false; // ### error() needed? |
258 | } |
259 | // qCDebug(KIO_TRASH) << "trashing to" << trashId; |
260 | |
261 | // Grab original filename |
262 | auto url = QUrl::fromLocalFile(localfile: origPath); |
263 | url = url.adjusted(options: QUrl::StripTrailingSlash); |
264 | const QString origFileName = url.fileName(); |
265 | |
266 | // Make destination file in info/ |
267 | #ifdef Q_OS_OSX |
268 | createTrashInfrastructure(trashId); |
269 | #endif |
270 | url.setPath(path: infoPath(trashId, fileId: origFileName)); // we first try with origFileName |
271 | QUrl baseDirectory = QUrl::fromLocalFile(localfile: url.path()); |
272 | // Here we need to use O_EXCL to avoid race conditions with other kioworker processes |
273 | int fd = 0; |
274 | QString fileName; |
275 | do { |
276 | // qCDebug(KIO_TRASH) << "trying to create" << url.path(); |
277 | fd = ::open(file: QFile::encodeName(fileName: url.path()).constData(), O_WRONLY | O_CREAT | O_EXCL, 0600); |
278 | if (fd < 0) { |
279 | if (errno == EEXIST) { |
280 | fileName = url.fileName(); |
281 | url = url.adjusted(options: QUrl::RemoveFilename); |
282 | url.setPath(path: url.path() + KFileUtils::suggestName(baseURL: baseDirectory, oldName: fileName)); |
283 | // and try again on the next iteration |
284 | } else { |
285 | error(e: KIO::ERR_CANNOT_WRITE, s: url.path()); |
286 | return false; |
287 | } |
288 | } |
289 | } while (fd < 0); |
290 | const QString infoPath = url.path(); |
291 | fileId = url.fileName(); |
292 | Q_ASSERT(fileId.endsWith(QLatin1String(".trashinfo" ))); |
293 | fileId.chop(n: 10); // remove .trashinfo from fileId |
294 | |
295 | FILE *file = ::fdopen(fd: fd, modes: "w" ); |
296 | if (!file) { // can't see how this would happen |
297 | error(e: KIO::ERR_CANNOT_WRITE, s: infoPath); |
298 | return false; |
299 | } |
300 | |
301 | // Contents of the info file. We could use KSimpleConfig, but that would |
302 | // mean closing and reopening fd, i.e. opening a race condition... |
303 | QByteArray info = "[Trash Info]\n" ; |
304 | info += "Path=" ; |
305 | // Escape filenames according to the way they are encoded on the filesystem |
306 | // All this to basically get back to the raw 8-bit representation of the filename... |
307 | if (trashId == 0) { // home trash: absolute path |
308 | info += QUrl::toPercentEncoding(origPath, exclude: "/" ); |
309 | } else { |
310 | info += QUrl::toPercentEncoding(makeRelativePath(topdir: topDirectoryPath(trashId), path: origPath), exclude: "/" ); |
311 | } |
312 | info += '\n'; |
313 | info += "DeletionDate=" + QDateTime::currentDateTime().toString(format: Qt::ISODate).toLatin1() + '\n'; |
314 | size_t sz = info.size(); |
315 | |
316 | size_t written = ::fwrite(ptr: info.data(), size: 1, n: sz, s: file); |
317 | if (written != sz) { |
318 | ::fclose(stream: file); |
319 | QFile::remove(fileName: infoPath); |
320 | error(e: KIO::ERR_DISK_FULL, s: infoPath); |
321 | return false; |
322 | } |
323 | |
324 | ::fclose(stream: file); |
325 | |
326 | // qCDebug(KIO_TRASH) << "info file created in trashId=" << trashId << ":" << fileId; |
327 | return true; |
328 | } |
329 | |
330 | QString TrashImpl::makeRelativePath(const QString &topdir, const QString &path) |
331 | { |
332 | QString realPath = QFileInfo(path).canonicalFilePath(); |
333 | if (realPath.isEmpty()) { // shouldn't happen |
334 | realPath = path; |
335 | } |
336 | // topdir ends with '/' |
337 | #ifndef Q_OS_WIN |
338 | if (realPath.startsWith(s: topdir)) { |
339 | #else |
340 | if (realPath.startsWith(topdir, Qt::CaseInsensitive)) { |
341 | #endif |
342 | const QString rel = realPath.mid(position: topdir.length()); |
343 | Q_ASSERT(rel[0] != QLatin1Char('/')); |
344 | return rel; |
345 | } else { // shouldn't happen... |
346 | qCWarning(KIO_TRASH) << "Couldn't make relative path for" << realPath << "(" << path << "), with topdir=" << topdir; |
347 | return realPath; |
348 | } |
349 | } |
350 | |
351 | void TrashImpl::enterLoop() |
352 | { |
353 | QEventLoop eventLoop; |
354 | connect(sender: this, signal: &TrashImpl::leaveModality, context: &eventLoop, slot: &QEventLoop::quit); |
355 | eventLoop.exec(flags: QEventLoop::ExcludeUserInputEvents); |
356 | } |
357 | |
358 | QString TrashImpl::infoPath(int trashId, const QString &fileId) const |
359 | { |
360 | const QString trashPath = trashDirectoryPath(trashId) + QLatin1String("/info/" ) + fileId + QLatin1String(".trashinfo" ); |
361 | return trashPath; |
362 | } |
363 | |
364 | QString TrashImpl::filesPath(int trashId, const QString &fileId) const |
365 | { |
366 | const QString trashPath = trashDirectoryPath(trashId) + QLatin1String("/files/" ) + fileId; |
367 | return trashPath; |
368 | } |
369 | |
370 | bool TrashImpl::deleteInfo(int trashId, const QString &fileId) |
371 | { |
372 | #ifdef Q_OS_OSX |
373 | createTrashInfrastructure(trashId); |
374 | #endif |
375 | |
376 | if (QFile::remove(fileName: infoPath(trashId, fileId))) { |
377 | fileRemoved(); |
378 | return true; |
379 | } |
380 | |
381 | return false; |
382 | } |
383 | |
384 | bool TrashImpl::moveToTrash(const QString &origPath, int trashId, const QString &fileId) |
385 | { |
386 | // qCDebug(KIO_TRASH) << "Trashing" << origPath << trashId << fileId; |
387 | if (!adaptTrashSize(origPath, trashId)) { |
388 | return false; |
389 | } |
390 | |
391 | #ifdef Q_OS_OSX |
392 | createTrashInfrastructure(trashId); |
393 | #endif |
394 | const QString dest = filesPath(trashId, fileId); |
395 | if (!move(src: origPath, dest)) { |
396 | // Maybe the move failed due to no permissions to delete source. |
397 | // In that case, delete dest to keep things consistent, since KIO doesn't do it. |
398 | if (QFileInfo(dest).isFile()) { |
399 | QFile::remove(fileName: dest); |
400 | } else { |
401 | synchronousDel(path: dest, setLastErrorCode: false, isDir: true); |
402 | } |
403 | return false; |
404 | } |
405 | |
406 | if (QFileInfo(dest).isDir()) { |
407 | TrashSizeCache trashSize(trashDirectoryPath(trashId)); |
408 | const qint64 pathSize = DiscSpaceUtil::sizeOfPath(path: dest); |
409 | trashSize.add(directoryName: fileId, directorySize: pathSize); |
410 | } |
411 | |
412 | fileAdded(); |
413 | return true; |
414 | } |
415 | |
416 | bool TrashImpl::moveFromTrash(const QString &dest, int trashId, const QString &fileId, const QString &relativePath) |
417 | { |
418 | QString src = filesPath(trashId, fileId); |
419 | if (!relativePath.isEmpty()) { |
420 | src += QLatin1Char('/') + relativePath; |
421 | } |
422 | if (!move(src, dest)) { |
423 | return false; |
424 | } |
425 | |
426 | TrashSizeCache trashSize(trashDirectoryPath(trashId)); |
427 | trashSize.remove(directoryName: fileId); |
428 | |
429 | return true; |
430 | } |
431 | |
432 | bool TrashImpl::move(const QString &src, const QString &dest) |
433 | { |
434 | if (directRename(src, dest)) { |
435 | // This notification is done by KIO::moveAs when using the code below |
436 | // But if we do a direct rename we need to do the notification ourselves |
437 | #ifdef WITH_QTDBUS |
438 | org::kde::KDirNotify::emitFilesAdded(directory: QUrl::fromLocalFile(localfile: dest)); |
439 | #endif |
440 | return true; |
441 | } |
442 | if (m_lastErrorCode != KIO::ERR_UNSUPPORTED_ACTION) { |
443 | return false; |
444 | } |
445 | |
446 | const auto urlSrc = QUrl::fromLocalFile(localfile: src); |
447 | const auto urlDest = QUrl::fromLocalFile(localfile: dest); |
448 | |
449 | // qCDebug(KIO_TRASH) << urlSrc << "->" << urlDest; |
450 | KIO::CopyJob *job = KIO::moveAs(src: urlSrc, dest: urlDest, flags: KIO::HideProgressInfo); |
451 | job->setUiDelegate(nullptr); |
452 | connect(sender: job, signal: &KJob::result, context: this, slot: &TrashImpl::jobFinished); |
453 | enterLoop(); |
454 | |
455 | return m_lastErrorCode == 0; |
456 | } |
457 | |
458 | void TrashImpl::jobFinished(KJob *job) |
459 | { |
460 | // qCDebug(KIO_TRASH) << "error=" << job->error() << job->errorText(); |
461 | error(e: job->error(), s: job->errorText()); |
462 | |
463 | Q_EMIT leaveModality(); |
464 | } |
465 | |
466 | bool TrashImpl::copyToTrash(const QString &origPath, int trashId, const QString &fileId) |
467 | { |
468 | // qCDebug(KIO_TRASH); |
469 | if (!adaptTrashSize(origPath, trashId)) { |
470 | return false; |
471 | } |
472 | |
473 | #ifdef Q_OS_OSX |
474 | createTrashInfrastructure(trashId); |
475 | #endif |
476 | const QString dest = filesPath(trashId, fileId); |
477 | if (!copy(src: origPath, dest)) { |
478 | return false; |
479 | } |
480 | |
481 | if (QFileInfo(dest).isDir()) { |
482 | TrashSizeCache trashSize(trashDirectoryPath(trashId)); |
483 | const qint64 pathSize = DiscSpaceUtil::sizeOfPath(path: dest); |
484 | trashSize.add(directoryName: fileId, directorySize: pathSize); |
485 | } |
486 | |
487 | fileAdded(); |
488 | return true; |
489 | } |
490 | |
491 | bool TrashImpl::copyFromTrash(const QString &dest, int trashId, const QString &fileId, const QString &relativePath) |
492 | { |
493 | const QString src = physicalPath(trashId, fileId, relativePath); |
494 | return copy(src, dest); |
495 | } |
496 | |
497 | bool TrashImpl::copy(const QString &src, const QString &dest) |
498 | { |
499 | // kio_file's copy() method is quite complex (in order to be fast), let's just call it... |
500 | m_lastErrorCode = 0; |
501 | const auto urlSrc = QUrl::fromLocalFile(localfile: src); |
502 | const auto urlDest = QUrl::fromLocalFile(localfile: dest); |
503 | // qCDebug(KIO_TRASH) << "copying" << src << "to" << dest; |
504 | KIO::CopyJob *job = KIO::copyAs(src: urlSrc, dest: urlDest, flags: KIO::HideProgressInfo); |
505 | job->setUiDelegate(nullptr); |
506 | connect(sender: job, signal: &KJob::result, context: this, slot: &TrashImpl::jobFinished); |
507 | enterLoop(); |
508 | |
509 | return m_lastErrorCode == 0; |
510 | } |
511 | |
512 | bool TrashImpl::directRename(const QString &src, const QString &dest) |
513 | { |
514 | // qCDebug(KIO_TRASH) << src << "->" << dest; |
515 | // Do not use QFile::rename here, we need to be able to move broken symlinks too |
516 | // (and we need to make sure errno is set) |
517 | if (::rename(old: QFile::encodeName(fileName: src).constData(), new: QFile::encodeName(fileName: dest).constData()) != 0) { |
518 | if (errno == EXDEV) { |
519 | error(e: KIO::ERR_UNSUPPORTED_ACTION, QStringLiteral("rename" )); |
520 | } else { |
521 | if ((errno == EACCES) || (errno == EPERM)) { |
522 | error(e: KIO::ERR_ACCESS_DENIED, s: dest); |
523 | } else if (errno == EROFS) { // The file is on a read-only filesystem |
524 | error(e: KIO::ERR_CANNOT_DELETE, s: src); |
525 | } else if (errno == ENOENT) { |
526 | const QString marker(QStringLiteral("Trash/files/" )); |
527 | const int idx = src.lastIndexOf(s: marker) + marker.size(); |
528 | const QString displayName = QLatin1String("trash:/" ) + src.mid(position: idx); |
529 | error(e: KIO::ERR_DOES_NOT_EXIST, s: displayName); |
530 | } else { |
531 | error(e: KIO::ERR_CANNOT_RENAME, s: src); |
532 | } |
533 | } |
534 | return false; |
535 | } |
536 | return true; |
537 | } |
538 | |
539 | bool TrashImpl::moveInTrash(int trashId, const QString &oldFileId, const QString &newFileId) |
540 | { |
541 | m_lastErrorCode = 0; |
542 | |
543 | const QString oldInfo = infoPath(trashId, fileId: oldFileId); |
544 | const QString oldFile = filesPath(trashId, fileId: oldFileId); |
545 | const QString newInfo = infoPath(trashId, fileId: newFileId); |
546 | const QString newFile = filesPath(trashId, fileId: newFileId); |
547 | |
548 | if (directRename(src: oldInfo, dest: newInfo)) { |
549 | if (directRename(src: oldFile, dest: newFile)) { |
550 | // success |
551 | |
552 | if (QFileInfo(newFile).isDir()) { |
553 | TrashSizeCache trashSize(trashDirectoryPath(trashId)); |
554 | trashSize.rename(oldDirectoryName: oldFileId, newDirectoryName: newFileId); |
555 | } |
556 | return true; |
557 | } else { |
558 | // rollback |
559 | directRename(src: newInfo, dest: oldInfo); |
560 | } |
561 | } |
562 | return false; |
563 | } |
564 | |
565 | bool TrashImpl::del(int trashId, const QString &fileId) |
566 | { |
567 | #ifdef Q_OS_OSX |
568 | createTrashInfrastructure(trashId); |
569 | #endif |
570 | |
571 | const QString info = infoPath(trashId, fileId); |
572 | const QString file = filesPath(trashId, fileId); |
573 | |
574 | QT_STATBUF buff; |
575 | if (QT_LSTAT(file: QFile::encodeName(fileName: info).constData(), buf: &buff) == -1) { |
576 | if (errno == EACCES) { |
577 | error(e: KIO::ERR_ACCESS_DENIED, s: file); |
578 | } else { |
579 | error(e: KIO::ERR_DOES_NOT_EXIST, s: file); |
580 | } |
581 | return false; |
582 | } |
583 | |
584 | const bool isDir = QFileInfo(file).isDir(); |
585 | if (!synchronousDel(path: file, setLastErrorCode: true, isDir)) { |
586 | return false; |
587 | } |
588 | |
589 | if (isDir) { |
590 | TrashSizeCache trashSize(trashDirectoryPath(trashId)); |
591 | trashSize.remove(directoryName: fileId); |
592 | } |
593 | |
594 | QFile::remove(fileName: info); |
595 | fileRemoved(); |
596 | return true; |
597 | } |
598 | |
599 | bool TrashImpl::synchronousDel(const QString &path, bool setLastErrorCode, bool isDir) |
600 | { |
601 | const int oldErrorCode = m_lastErrorCode; |
602 | const QString oldErrorMsg = m_lastErrorMessage; |
603 | const auto url = QUrl::fromLocalFile(localfile: path); |
604 | // First ensure that all dirs have u+w permissions, |
605 | // otherwise we won't be able to delete files in them (#130780). |
606 | if (isDir) { |
607 | // qCDebug(KIO_TRASH) << "chmod'ing" << url; |
608 | KFileItem fileItem(url, QStringLiteral("inode/directory" ), KFileItem::Unknown); |
609 | KFileItemList fileItemList; |
610 | fileItemList.append(t: fileItem); |
611 | KIO::ChmodJob *chmodJob = KIO::chmod(lstItems: fileItemList, permissions: 0200, mask: 0200, newOwner: QString(), newGroup: QString(), recursive: true /*recursive*/, flags: KIO::HideProgressInfo); |
612 | connect(sender: chmodJob, signal: &KJob::result, context: this, slot: &TrashImpl::jobFinished); |
613 | enterLoop(); |
614 | } |
615 | |
616 | KIO::DeleteJob *job = KIO::del(src: url, flags: KIO::HideProgressInfo); |
617 | connect(sender: job, signal: &KJob::result, context: this, slot: &TrashImpl::jobFinished); |
618 | enterLoop(); |
619 | bool ok = m_lastErrorCode == 0; |
620 | if (!setLastErrorCode) { |
621 | m_lastErrorCode = oldErrorCode; |
622 | m_lastErrorMessage = oldErrorMsg; |
623 | } |
624 | return ok; |
625 | } |
626 | |
627 | bool TrashImpl::emptyTrash() |
628 | { |
629 | // qCDebug(KIO_TRASH); |
630 | // The naive implementation "delete info and files in every trash directory" |
631 | // breaks when deleted directories contain files owned by other users. |
632 | // We need to ensure that the .trashinfo file is only removed when the |
633 | // corresponding files could indeed be removed (#116371) |
634 | |
635 | // On the other hand, we certainly want to remove any file that has no associated |
636 | // .trashinfo file for some reason (#167051) |
637 | |
638 | QSet<QString> unremovableFiles; |
639 | |
640 | int myErrorCode = 0; |
641 | QString myErrorMsg; |
642 | const TrashedFileInfoList fileInfoList = list(); |
643 | for (const auto &info : fileInfoList) { |
644 | const QString filesPath = info.physicalPath; |
645 | if (synchronousDel(path: filesPath, setLastErrorCode: true, isDir: true) || m_lastErrorCode == KIO::ERR_DOES_NOT_EXIST) { |
646 | QFile::remove(fileName: infoPath(trashId: info.trashId, fileId: info.fileId)); |
647 | } else { |
648 | // error code is set by synchronousDel, let's remember it |
649 | // (so that successfully removing another file doesn't erase the error) |
650 | myErrorCode = m_lastErrorCode; |
651 | myErrorMsg = m_lastErrorMessage; |
652 | // and remember not to remove this file |
653 | unremovableFiles.insert(value: filesPath); |
654 | qCDebug(KIO_TRASH) << "Unremovable:" << filesPath; |
655 | } |
656 | |
657 | TrashSizeCache trashSize(trashDirectoryPath(trashId: info.trashId)); |
658 | trashSize.clear(); |
659 | } |
660 | |
661 | // Now do the orphaned-files cleanup |
662 | for (auto trit = m_trashDirectories.cbegin(); trit != m_trashDirectories.cend(); ++trit) { |
663 | // const int trashId = trit.key(); |
664 | const QString filesDir = trit.value() + QLatin1String("/files" ); |
665 | const QStringList list = listDir(physicalPath: filesDir); |
666 | for (const QString &fileName : list) { |
667 | if (fileName == QLatin1Char('.') || fileName == QLatin1String(".." )) { |
668 | continue; |
669 | } |
670 | const QString filePath = filesDir + QLatin1Char('/') + fileName; |
671 | if (!unremovableFiles.contains(value: filePath)) { |
672 | qCWarning(KIO_TRASH) << "Removing orphaned file" << filePath; |
673 | QFile::remove(fileName: filePath); |
674 | } |
675 | } |
676 | } |
677 | |
678 | m_lastErrorCode = myErrorCode; |
679 | m_lastErrorMessage = myErrorMsg; |
680 | |
681 | fileRemoved(); |
682 | |
683 | return m_lastErrorCode == 0; |
684 | } |
685 | |
686 | TrashImpl::TrashedFileInfoList TrashImpl::list() |
687 | { |
688 | // Here we scan for trash directories unconditionally. This allows |
689 | // noticing plugged-in [e.g. removable] devices, or new mounts etc. |
690 | scanTrashDirectories(); |
691 | |
692 | TrashedFileInfoList lst; |
693 | // For each known trash directory... |
694 | for (auto it = m_trashDirectories.cbegin(); it != m_trashDirectories.cend(); ++it) { |
695 | const int trashId = it.key(); |
696 | QString infoPath = it.value(); |
697 | infoPath += QLatin1String("/info" ); |
698 | // Code taken from kio_file |
699 | const QStringList entryNames = listDir(physicalPath: infoPath); |
700 | // char path_buffer[PATH_MAX]; |
701 | // getcwd(path_buffer, PATH_MAX - 1); |
702 | // if ( chdir( infoPathEnc ) ) |
703 | // continue; |
704 | |
705 | const QLatin1String tail(".trashinfo" ); |
706 | const int tailLength = tail.size(); |
707 | for (const QString &fileName : entryNames) { |
708 | if (fileName == QLatin1Char('.') || fileName == QLatin1String(".." )) { |
709 | continue; |
710 | } |
711 | if (!fileName.endsWith(s: tail)) { |
712 | qCWarning(KIO_TRASH) << "Invalid info file found in" << infoPath << ":" << fileName; |
713 | continue; |
714 | } |
715 | |
716 | TrashedFileInfo info; |
717 | if (infoForFile(trashId, fileId: fileName.chopped(n: tailLength), info)) { |
718 | lst << info; |
719 | } |
720 | } |
721 | } |
722 | return lst; |
723 | } |
724 | |
725 | // Returns the entries in a given directory - including "." and ".." |
726 | QStringList TrashImpl::listDir(const QString &physicalPath) |
727 | { |
728 | return QDir(physicalPath).entryList(filters: QDir::Dirs | QDir::Files | QDir::Hidden | QDir::System); |
729 | } |
730 | |
731 | bool TrashImpl::infoForFile(int trashId, const QString &fileId, TrashedFileInfo &info) |
732 | { |
733 | // qCDebug(KIO_TRASH) << trashId << fileId; |
734 | info.trashId = trashId; // easy :) |
735 | info.fileId = fileId; // equally easy |
736 | info.physicalPath = filesPath(trashId, fileId); |
737 | return readInfoFile(infoPath: infoPath(trashId, fileId), info, trashId); |
738 | } |
739 | |
740 | bool TrashImpl::trashSpaceInfo(const QString &path, TrashSpaceInfo &info) |
741 | { |
742 | const int trashId = findTrashDirectory(origPath: path); |
743 | if (trashId < 0) { |
744 | qCWarning(KIO_TRASH) << "No trash directory found! TrashImpl::findTrashDirectory returned" << trashId; |
745 | return false; |
746 | } |
747 | |
748 | const KConfig config(QStringLiteral("ktrashrc" )); |
749 | |
750 | const QString trashPath = trashDirectoryPath(trashId); |
751 | const auto group = config.group(group: trashPath); |
752 | |
753 | const bool useSizeLimit = group.readEntry(key: "UseSizeLimit" , defaultValue: true); |
754 | const double percent = group.readEntry(key: "Percent" , defaultValue: 10.0); |
755 | |
756 | DiscSpaceUtil util(trashPath + QLatin1String("/files/" )); |
757 | qint64 total = util.size(); |
758 | if (useSizeLimit) { |
759 | total *= percent / 100.0; |
760 | } |
761 | |
762 | TrashSizeCache trashSize(trashPath); |
763 | const qint64 used = trashSize.calculateSize(); |
764 | |
765 | info.totalSize = total; |
766 | info.availableSize = total - used; |
767 | |
768 | return true; |
769 | } |
770 | |
771 | bool TrashImpl::readInfoFile(const QString &infoPath, TrashedFileInfo &info, int trashId) |
772 | { |
773 | KConfig cfg(infoPath, KConfig::SimpleConfig); |
774 | if (!cfg.hasGroup(QStringLiteral("Trash Info" ))) { |
775 | error(e: KIO::ERR_CANNOT_OPEN_FOR_READING, s: infoPath); |
776 | return false; |
777 | } |
778 | const KConfigGroup group = cfg.group(QStringLiteral("Trash Info" )); |
779 | info.origPath = QUrl::fromPercentEncoding(group.readEntry(key: "Path" ).toLatin1()); |
780 | if (info.origPath.isEmpty()) { |
781 | return false; // path is mandatory... |
782 | } |
783 | if (trashId == 0) { |
784 | Q_ASSERT(info.origPath[0] == QLatin1Char('/')); |
785 | } else { |
786 | if (!info.origPath.startsWith(c: QLatin1Char('/'))) { |
787 | const QString topdir = topDirectoryPath(trashId); // includes trailing slash |
788 | info.origPath.prepend(s: topdir); |
789 | } |
790 | } |
791 | const QString line = group.readEntry(key: "DeletionDate" ); |
792 | if (!line.isEmpty()) { |
793 | info.deletionDate = QDateTime::fromString(string: line, format: Qt::ISODate); |
794 | } |
795 | return true; |
796 | } |
797 | |
798 | QString TrashImpl::physicalPath(int trashId, const QString &fileId, const QString &relativePath) |
799 | { |
800 | QString filePath = filesPath(trashId, fileId); |
801 | if (!relativePath.isEmpty()) { |
802 | filePath += QLatin1Char('/') + relativePath; |
803 | } |
804 | return filePath; |
805 | } |
806 | |
807 | void TrashImpl::error(int e, const QString &s) |
808 | { |
809 | if (e) { |
810 | qCDebug(KIO_TRASH) << e << s; |
811 | } |
812 | m_lastErrorCode = e; |
813 | m_lastErrorMessage = s; |
814 | } |
815 | |
816 | bool TrashImpl::isEmpty() const |
817 | { |
818 | // For each known trash directory... |
819 | if (!m_trashDirectoriesScanned) { |
820 | scanTrashDirectories(); |
821 | } |
822 | |
823 | for (auto it = m_trashDirectories.cbegin(); it != m_trashDirectories.cend(); ++it) { |
824 | const QString infoPath = it.value() + QLatin1String("/info" ); |
825 | |
826 | DIR *dp = ::opendir(name: QFile::encodeName(fileName: infoPath).constData()); |
827 | if (dp) { |
828 | struct dirent *ep; |
829 | ep = readdir(dirp: dp); |
830 | ep = readdir(dirp: dp); // ignore '.' and '..' dirent |
831 | ep = readdir(dirp: dp); // look for third file |
832 | closedir(dirp: dp); |
833 | if (ep != nullptr) { |
834 | // qCDebug(KIO_TRASH) << ep->d_name << "in" << infoPath << "-> not empty"; |
835 | return false; // not empty |
836 | } |
837 | } |
838 | } |
839 | return true; |
840 | } |
841 | |
842 | void TrashImpl::fileAdded() |
843 | { |
844 | m_config.reparseConfiguration(); |
845 | KConfigGroup group = m_config.group(QStringLiteral("Status" )); |
846 | if (group.readEntry(key: "Empty" , defaultValue: true) == true) { |
847 | group.writeEntry(key: "Empty" , value: false); |
848 | m_config.sync(); |
849 | } |
850 | // The apps showing the trash (e.g. kdesktop) will be notified |
851 | // of this change when KDirNotify::FilesAdded("trash:/") is emitted, |
852 | // which will be done by the job soon after this. |
853 | } |
854 | |
855 | void TrashImpl::fileRemoved() |
856 | { |
857 | if (isEmpty()) { |
858 | deleteEmptyTrashInfrastructure(); |
859 | |
860 | // the file may have have changed by another trash:/ worker instance |
861 | m_config.reparseConfiguration(); |
862 | KConfigGroup group = m_config.group(QStringLiteral("Status" )); |
863 | group.writeEntry(key: "Empty" , value: true); |
864 | m_config.sync(); |
865 | #ifdef WITH_QTDBUS |
866 | org::kde::KDirNotify::emitFilesChanged(fileList: {QUrl::fromEncoded(input: "trash:/" )}); |
867 | #endif |
868 | } |
869 | // The apps showing the trash (e.g. kdesktop) will be notified |
870 | // of this change when KDirNotify::FilesRemoved(...) is emitted, |
871 | // which will be done by the job soon after this. |
872 | } |
873 | |
874 | #ifdef Q_OS_OSX |
875 | #include <CoreFoundation/CoreFoundation.h> |
876 | #include <DiskArbitration/DiskArbitration.h> |
877 | #include <sys/mount.h> |
878 | |
879 | int TrashImpl::idForMountPoint(const QString &mountPoint) const |
880 | { |
881 | DADiskRef disk; |
882 | CFDictionaryRef descDict; |
883 | DASessionRef session = DASessionCreate(NULL); |
884 | int devId = -1; |
885 | if (session) { |
886 | QByteArray mp = QFile::encodeName(mountPoint); |
887 | struct statfs statFS; |
888 | statfs(mp.constData(), &statFS); |
889 | disk = DADiskCreateFromBSDName(kCFAllocatorDefault, session, statFS.f_mntfromname); |
890 | if (disk) { |
891 | descDict = DADiskCopyDescription(disk); |
892 | if (descDict) { |
893 | CFNumberRef cfMajor = (CFNumberRef)CFDictionaryGetValue(descDict, kDADiskDescriptionMediaBSDMajorKey); |
894 | CFNumberRef cfMinor = (CFNumberRef)CFDictionaryGetValue(descDict, kDADiskDescriptionMediaBSDMinorKey); |
895 | int major, minor; |
896 | if (CFNumberGetValue(cfMajor, kCFNumberIntType, &major) && CFNumberGetValue(cfMinor, kCFNumberIntType, &minor)) { |
897 | qCWarning(KIO_TRASH) << "major=" << major << " minor=" << minor; |
898 | devId = 1000 * major + minor; |
899 | } |
900 | CFRelease(cfMajor); |
901 | CFRelease(cfMinor); |
902 | } else { |
903 | qCWarning(KIO_TRASH) << "couldn't get DADiskCopyDescription from" << disk; |
904 | } |
905 | CFRelease(disk); |
906 | } else { |
907 | qCWarning(KIO_TRASH) << "DADiskCreateFromBSDName failed on statfs from" << mp; |
908 | } |
909 | CFRelease(session); |
910 | } else { |
911 | qCWarning(KIO_TRASH) << "couldn't create DASession" ; |
912 | } |
913 | return devId; |
914 | } |
915 | |
916 | #else |
917 | |
918 | int TrashImpl::idForDevice(const Solid::Device &device) const |
919 | { |
920 | const Solid::Block *block = device.as<Solid::Block>(); |
921 | if (block) { |
922 | // qCDebug(KIO_TRASH) << "major=" << block->deviceMajor() << "minor=" << block->deviceMinor(); |
923 | return block->deviceMajor() * 1000 + block->deviceMinor(); |
924 | } else { |
925 | const Solid::NetworkShare *netshare = device.as<Solid::NetworkShare>(); |
926 | |
927 | if (netshare) { |
928 | QString url = netshare->url().url(); |
929 | |
930 | QLockFile configLock(QStandardPaths::writableLocation(type: QStandardPaths::GenericConfigLocation) + QStringLiteral("/trashrc.nextid.lock" )); |
931 | |
932 | if (!configLock.lock()) { |
933 | return -1; |
934 | } |
935 | |
936 | m_config.reparseConfiguration(); |
937 | KConfigGroup group = m_config.group(QStringLiteral("NetworkShares" )); |
938 | int id = group.readEntry(key: url, aDefault: -1); |
939 | |
940 | if (id == -1) { |
941 | id = group.readEntry(key: "NextID" , defaultValue: 0); |
942 | // qCDebug(KIO_TRASH) << "new share=" << url << " id=" << id; |
943 | |
944 | group.writeEntry(key: url, value: id); |
945 | group.writeEntry(key: "NextID" , value: id + 1); |
946 | group.sync(); |
947 | } |
948 | |
949 | return 6000000 + id; |
950 | } |
951 | |
952 | // Not a block device nor a network share |
953 | return -1; |
954 | } |
955 | } |
956 | |
957 | void TrashImpl::refreshDevices() const |
958 | { |
959 | // this is needed because Solid's fstab backend uses QSocketNotifier |
960 | // to get notifications about changes to mtab |
961 | // otherwise we risk getting old device list |
962 | qApp->processEvents(flags: QEventLoop::ExcludeUserInputEvents); |
963 | } |
964 | #endif |
965 | |
966 | void TrashImpl::insertTrashDir(int id, const QString &trashDir, const QString &topdir) const |
967 | { |
968 | m_trashDirectories.insert(key: id, value: trashDir); |
969 | qCDebug(KIO_TRASH) << "found" << trashDir << "gave it id" << id; |
970 | m_topDirectories.insert(key: id, value: Utils::slashAppended(s: topdir)); |
971 | } |
972 | |
973 | int TrashImpl::findTrashDirectory(const QString &origPath) |
974 | { |
975 | // qCDebug(KIO_TRASH) << origPath; |
976 | // Check if it's on the same device as $HOME |
977 | QT_STATBUF buff; |
978 | if (QT_LSTAT(file: QFile::encodeName(fileName: origPath).constData(), buf: &buff) == 0 && buff.st_dev == m_homeDevice) { |
979 | return 0; |
980 | } |
981 | |
982 | KMountPoint::Ptr mp = KMountPoint::currentMountPoints().findByPath(path: origPath); |
983 | if (!mp) { |
984 | // qCDebug(KIO_TRASH) << "KMountPoint found no mount point for" << origPath; |
985 | return 0; |
986 | } |
987 | |
988 | QString mountPoint = mp->mountPoint(); |
989 | const QString trashDir = trashForMountPoint(topdir: mountPoint, createIfNeeded: true); |
990 | // qCDebug(KIO_TRASH) << "mountPoint=" << mountPoint << "trashDir=" << trashDir; |
991 | |
992 | #ifndef Q_OS_OSX |
993 | if (trashDir.isEmpty()) { |
994 | return 0; // no trash available on partition |
995 | } |
996 | #endif |
997 | |
998 | int id = idForTrashDirectory(trashDir); |
999 | if (id > -1) { |
1000 | qCDebug(KIO_TRASH) << "Found Trash dir" << trashDir << "with id" << id; |
1001 | return id; |
1002 | } |
1003 | |
1004 | #ifdef Q_OS_OSX |
1005 | id = idForMountPoint(mountPoint); |
1006 | #else |
1007 | refreshDevices(); |
1008 | const QString query = QLatin1String("[StorageAccess.accessible == true AND StorageAccess.filePath == '%1']" ).arg(args&: mountPoint); |
1009 | const QList<Solid::Device> lst = Solid::Device::listFromQuery(predicate: query); |
1010 | qCDebug(KIO_TRASH) << "Queried Solid with" << query << "got" << lst.count() << "devices" ; |
1011 | if (lst.isEmpty()) { // not a device. Maybe some tmpfs mount for instance. |
1012 | return 0; |
1013 | } |
1014 | |
1015 | // Pretend we got exactly one... |
1016 | const Solid::Device device = lst.at(i: 0); |
1017 | id = idForDevice(device); |
1018 | #endif |
1019 | if (id == -1) { |
1020 | return 0; |
1021 | } |
1022 | |
1023 | // New trash dir found, register it |
1024 | insertTrashDir(id, trashDir, topdir: mountPoint); |
1025 | return id; |
1026 | } |
1027 | |
1028 | KIO::UDSEntry TrashImpl::trashUDSEntry(KIO::StatDetails details) |
1029 | { |
1030 | KIO::UDSEntry entry; |
1031 | if (details & KIO::StatRecursiveSize) { |
1032 | KIO::filesize_t size = 0; |
1033 | long latestModifiedDate = 0; |
1034 | |
1035 | for (const QString &trashPath : std::as_const(t&: m_trashDirectories)) { |
1036 | TrashSizeCache trashSize(trashPath); |
1037 | TrashSizeCache::SizeAndModTime res = trashSize.calculateSizeAndLatestModDate(); |
1038 | size += res.size; |
1039 | |
1040 | // Find latest modification date |
1041 | if (res.mtime > latestModifiedDate) { |
1042 | latestModifiedDate = res.mtime; |
1043 | } |
1044 | } |
1045 | |
1046 | entry.reserve(size: 3); |
1047 | entry.fastInsert(field: KIO::UDSEntry::UDS_RECURSIVE_SIZE, l: static_cast<long long>(size)); |
1048 | |
1049 | entry.fastInsert(field: KIO::UDSEntry::UDS_MODIFICATION_TIME, l: latestModifiedDate / 1000); |
1050 | // access date is unreliable for the trash folder, use the modified date instead |
1051 | entry.fastInsert(field: KIO::UDSEntry::UDS_ACCESS_TIME, l: latestModifiedDate / 1000); |
1052 | } |
1053 | return entry; |
1054 | } |
1055 | |
1056 | void TrashImpl::scanTrashDirectories() const |
1057 | { |
1058 | #ifndef Q_OS_OSX |
1059 | refreshDevices(); |
1060 | #endif |
1061 | |
1062 | const QList<Solid::Device> lst = Solid::Device::listFromQuery(QStringLiteral("StorageAccess.accessible == true" )); |
1063 | for (const Solid::Device &device : lst) { |
1064 | QString topdir = device.as<Solid::StorageAccess>()->filePath(); |
1065 | QString trashDir = trashForMountPoint(topdir, createIfNeeded: false); |
1066 | if (!trashDir.isEmpty()) { |
1067 | // OK, trashDir is a valid trash directory. Ensure it's registered. |
1068 | int trashId = idForTrashDirectory(trashDir); |
1069 | if (trashId == -1) { |
1070 | // new trash dir found, register it |
1071 | #ifdef Q_OS_OSX |
1072 | trashId = idForMountPoint(topdir); |
1073 | #else |
1074 | trashId = idForDevice(device); |
1075 | #endif |
1076 | if (trashId == -1) { |
1077 | continue; |
1078 | } |
1079 | |
1080 | insertTrashDir(id: trashId, trashDir, topdir); |
1081 | } |
1082 | } |
1083 | } |
1084 | m_trashDirectoriesScanned = true; |
1085 | } |
1086 | |
1087 | TrashImpl::TrashDirMap TrashImpl::trashDirectories() const |
1088 | { |
1089 | if (!m_trashDirectoriesScanned) { |
1090 | scanTrashDirectories(); |
1091 | } |
1092 | return m_trashDirectories; |
1093 | } |
1094 | |
1095 | TrashImpl::TrashDirMap TrashImpl::topDirectories() const |
1096 | { |
1097 | if (!m_trashDirectoriesScanned) { |
1098 | scanTrashDirectories(); |
1099 | } |
1100 | return m_topDirectories; |
1101 | } |
1102 | |
1103 | QString TrashImpl::trashForMountPoint(const QString &topdir, bool createIfNeeded) const |
1104 | { |
1105 | // (1) Administrator-created $topdir/.Trash directory |
1106 | |
1107 | #ifndef Q_OS_OSX |
1108 | const QString rootTrashDir = topdir + QLatin1String("/.Trash" ); |
1109 | #else |
1110 | const QString rootTrashDir = topdir + QLatin1String("/.Trashes" ); |
1111 | #endif |
1112 | const QByteArray rootTrashDir_c = QFile::encodeName(fileName: rootTrashDir); |
1113 | // Can't use QFileInfo here since we need to test for the sticky bit |
1114 | uid_t uid = getuid(); |
1115 | QT_STATBUF buff; |
1116 | const unsigned int requiredBits = S_ISVTX; // Sticky bit required |
1117 | if (QT_LSTAT(file: rootTrashDir_c.constData(), buf: &buff) == 0) { |
1118 | if ((S_ISDIR(buff.st_mode)) // must be a dir |
1119 | && (!S_ISLNK(buff.st_mode)) // not a symlink |
1120 | && ((buff.st_mode & requiredBits) == requiredBits) // |
1121 | && (::access(name: rootTrashDir_c.constData(), W_OK) == 0) // must be user-writable |
1122 | ) { |
1123 | if (buff.st_dev == m_homeDevice) // bind mount, maybe |
1124 | return QString(); |
1125 | #ifndef Q_OS_OSX |
1126 | const QString trashDir = rootTrashDir + QLatin1Char('/') + QString::number(uid); |
1127 | #else |
1128 | QString trashDir = rootTrashDir + QLatin1Char('/') + QString::number(uid); |
1129 | #endif |
1130 | const QByteArray trashDir_c = QFile::encodeName(fileName: trashDir); |
1131 | if (QT_LSTAT(file: trashDir_c.constData(), buf: &buff) == 0) { |
1132 | if ((buff.st_uid == uid) // must be owned by user |
1133 | && (S_ISDIR(buff.st_mode)) // must be a dir |
1134 | && (!S_ISLNK(buff.st_mode)) // not a symlink |
1135 | && (buff.st_mode & 0777) == 0700) { // rwx for user |
1136 | #ifdef Q_OS_OSX |
1137 | trashDir += QStringLiteral("/KDE.trash" ); |
1138 | #endif |
1139 | return trashDir; |
1140 | } |
1141 | qCWarning(KIO_TRASH) << "Directory" << trashDir << "exists but didn't pass the security checks, can't use it" ; |
1142 | } else if (createIfNeeded && initTrashDirectory(trashDir_c)) { |
1143 | return trashDir; |
1144 | } |
1145 | } else { |
1146 | qCWarning(KIO_TRASH) << "Root trash dir" << rootTrashDir << "exists but didn't pass the security checks, can't use it" ; |
1147 | } |
1148 | } |
1149 | |
1150 | #ifndef Q_OS_OSX |
1151 | // (2) $topdir/.Trash-$uid |
1152 | const QString trashDir = topdir + QLatin1String("/.Trash-" ) + QString::number(uid); |
1153 | const QByteArray trashDir_c = QFile::encodeName(fileName: trashDir); |
1154 | if (QT_LSTAT(file: trashDir_c.constData(), buf: &buff) == 0) { |
1155 | if ((buff.st_uid == uid) // must be owned by user |
1156 | && S_ISDIR(buff.st_mode) // must be a dir |
1157 | && !S_ISLNK(buff.st_mode) // not a symlink |
1158 | && ((buff.st_mode & 0700) == 0700)) { // and we need write access to it |
1159 | |
1160 | if (buff.st_dev == m_homeDevice) // bind mount, maybe |
1161 | return QString(); |
1162 | if (checkTrashSubdirs(trashDir_c)) { |
1163 | return trashDir; |
1164 | } |
1165 | } |
1166 | qCWarning(KIO_TRASH) << "Directory" << trashDir << "exists but didn't pass the security checks, can't use it" ; |
1167 | // Exists, but not usable |
1168 | return QString(); |
1169 | } |
1170 | if (createIfNeeded && initTrashDirectory(trashDir_c)) { |
1171 | return trashDir; |
1172 | } |
1173 | #endif |
1174 | return QString(); |
1175 | } |
1176 | |
1177 | int TrashImpl::idForTrashDirectory(const QString &trashDir) const |
1178 | { |
1179 | // If this is too slow we can always use a reverse map... |
1180 | for (auto it = m_trashDirectories.cbegin(); it != m_trashDirectories.cend(); ++it) { |
1181 | if (it.value() == trashDir) { |
1182 | return it.key(); |
1183 | } |
1184 | } |
1185 | return -1; |
1186 | } |
1187 | |
1188 | bool TrashImpl::initTrashDirectory(const QByteArray &trashDir_c) const |
1189 | { |
1190 | if (mkdir(path: trashDir_c.constData(), mode: 0700) != 0) { |
1191 | return false; |
1192 | } |
1193 | return checkTrashSubdirs(trashDir_c); |
1194 | } |
1195 | |
1196 | bool TrashImpl::checkTrashSubdirs(const QByteArray &trashDir_c) const |
1197 | { |
1198 | const QString trashDir = QFile::decodeName(localFileName: trashDir_c); |
1199 | const QString info = trashDir + QLatin1String("/info" ); |
1200 | const QString files = trashDir + QLatin1String("/files" ); |
1201 | return testDir(name: info) == 0 && testDir(name: files) == 0; |
1202 | } |
1203 | |
1204 | QString TrashImpl::trashDirectoryPath(int trashId) const |
1205 | { |
1206 | // Never scanned for trash dirs? (This can happen after killing kio_trash |
1207 | // and reusing a directory listing from the earlier instance.) |
1208 | if (!m_trashDirectoriesScanned) { |
1209 | scanTrashDirectories(); |
1210 | } |
1211 | Q_ASSERT(m_trashDirectories.contains(trashId)); |
1212 | return m_trashDirectories[trashId]; |
1213 | } |
1214 | |
1215 | QString TrashImpl::topDirectoryPath(int trashId) const |
1216 | { |
1217 | if (!m_trashDirectoriesScanned) { |
1218 | scanTrashDirectories(); |
1219 | } |
1220 | assert(trashId != 0); |
1221 | Q_ASSERT(m_topDirectories.contains(trashId)); |
1222 | return m_topDirectories[trashId]; |
1223 | } |
1224 | |
1225 | // Helper method. Creates a URL with the format trash:/trashid-fileid or |
1226 | // trash:/trashid-fileid/relativePath/To/File for a file inside a trashed directory. |
1227 | QUrl TrashImpl::makeURL(int trashId, const QString &fileId, const QString &relativePath) |
1228 | { |
1229 | QUrl url; |
1230 | url.setScheme(QStringLiteral("trash" )); |
1231 | QString path = QLatin1Char('/') + QString::number(trashId) + QLatin1Char('-') + fileId; |
1232 | if (!relativePath.isEmpty()) { |
1233 | path += QLatin1Char('/') + relativePath; |
1234 | } |
1235 | url.setPath(path); |
1236 | return url; |
1237 | } |
1238 | |
1239 | // Helper method. Parses a trash URL with the URL scheme defined in makeURL. |
1240 | // The trash:/ URL itself isn't parsed here, must be caught by the caller before hand. |
1241 | bool TrashImpl::parseURL(const QUrl &url, int &trashId, QString &fileId, QString &relativePath) |
1242 | { |
1243 | if (url.scheme() != QLatin1String("trash" )) { |
1244 | return false; |
1245 | } |
1246 | const QString path = url.path(); |
1247 | if (path.isEmpty()) { |
1248 | return false; |
1249 | } |
1250 | int start = 0; |
1251 | if (path[0] == QLatin1Char('/')) { // always true I hope |
1252 | start = 1; |
1253 | } |
1254 | int slashPos = path.indexOf(ch: QLatin1Char('-'), from: 0); // don't match leading slash |
1255 | if (slashPos <= 0) { |
1256 | return false; |
1257 | } |
1258 | bool ok = false; |
1259 | |
1260 | trashId = QStringView(path).mid(pos: start, n: slashPos - start).toInt(ok: &ok); |
1261 | |
1262 | Q_ASSERT_X(ok, Q_FUNC_INFO, qUtf8Printable(url.toString())); |
1263 | if (!ok) { |
1264 | return false; |
1265 | } |
1266 | start = slashPos + 1; |
1267 | slashPos = path.indexOf(ch: QLatin1Char('/'), from: start); |
1268 | if (slashPos <= 0) { |
1269 | fileId = path.mid(position: start); |
1270 | relativePath.clear(); |
1271 | return true; |
1272 | } |
1273 | fileId = path.mid(position: start, n: slashPos - start); |
1274 | relativePath = path.mid(position: slashPos + 1); |
1275 | return true; |
1276 | } |
1277 | |
1278 | bool TrashImpl::adaptTrashSize(const QString &origPath, int trashId) |
1279 | { |
1280 | KConfig config(QStringLiteral("ktrashrc" )); |
1281 | |
1282 | const QString trashPath = trashDirectoryPath(trashId); |
1283 | KConfigGroup group = config.group(group: trashPath); |
1284 | |
1285 | const bool useTimeLimit = group.readEntry(key: "UseTimeLimit" , defaultValue: false); |
1286 | const bool useSizeLimit = group.readEntry(key: "UseSizeLimit" , defaultValue: true); |
1287 | const double percent = group.readEntry(key: "Percent" , defaultValue: 10.0); |
1288 | const int actionType = group.readEntry(key: "LimitReachedAction" , defaultValue: 0); |
1289 | |
1290 | if (useTimeLimit) { // delete all files in trash older than X days |
1291 | const int maxDays = group.readEntry(key: "Days" , defaultValue: 7); |
1292 | const QDateTime currentDate = QDateTime::currentDateTime(); |
1293 | |
1294 | const TrashedFileInfoList trashedFiles = list(); |
1295 | for (const auto &info : trashedFiles) { |
1296 | if (info.trashId != trashId) { |
1297 | continue; |
1298 | } |
1299 | |
1300 | if (info.deletionDate.daysTo(currentDate) > maxDays) { |
1301 | del(trashId: info.trashId, fileId: info.fileId); |
1302 | } |
1303 | } |
1304 | } |
1305 | |
1306 | if (!useSizeLimit) { // check if size limit exceeded |
1307 | return true; |
1308 | } |
1309 | |
1310 | // calculate size of the files to be put into the trash |
1311 | const qint64 additionalSize = DiscSpaceUtil::sizeOfPath(path: origPath); |
1312 | |
1313 | #ifdef Q_OS_OSX |
1314 | createTrashInfrastructure(trashId); |
1315 | #endif |
1316 | DiscSpaceUtil util(trashPath + QLatin1String("/files/" )); |
1317 | auto cache = TrashSizeCache(trashPath); |
1318 | auto trashSize = cache.calculateSize(); |
1319 | |
1320 | if (util.usage(size: trashSize + additionalSize) < percent) { |
1321 | return true; |
1322 | } |
1323 | |
1324 | // before we start to remove any files from the trash, |
1325 | // check whether the new file will fit into the trash |
1326 | // at all... |
1327 | const qint64 partitionSize = util.size(); |
1328 | |
1329 | if ((util.usage(size: partitionSize + additionalSize)) >= percent) { |
1330 | m_lastErrorCode = KIO::ERR_TRASH_FILE_TOO_LARGE; |
1331 | m_lastErrorMessage = KIO::buildErrorString(errorCode: m_lastErrorCode, errorText: {}); |
1332 | return false; |
1333 | } |
1334 | |
1335 | if (actionType == 0) { // warn the user only |
1336 | m_lastErrorCode = KIO::ERR_WORKER_DEFINED; |
1337 | m_lastErrorMessage = i18n("The trash is full. Empty it or remove items manually." ); |
1338 | return false; |
1339 | } |
1340 | |
1341 | // Start removing some other files from the trash |
1342 | |
1343 | QDir::SortFlags sortFlags; |
1344 | if (actionType == 1) { |
1345 | sortFlags = QDir::Time | QDir::Reversed; // Delete oldest files first |
1346 | } else if (actionType == 2) { |
1347 | sortFlags = QDir::Size; // Delete biggest files first |
1348 | } else { |
1349 | qWarning() << "Called with actionType" << actionType << ", which theoretically should never happen!" ; |
1350 | return false; // Bail out |
1351 | } |
1352 | |
1353 | const auto dirCache = cache.readDirCache(); |
1354 | constexpr QDir::Filters dirFilters = QDir::Files | QDir::AllDirs | QDir::NoDotAndDotDot; |
1355 | const QFileInfoList infoList = QDir(trashPath + QLatin1String("/files" )).entryInfoList(filters: dirFilters, sort: sortFlags); |
1356 | for (const auto &info : infoList) { |
1357 | auto fileSizeFreed = info.size(); |
1358 | if (info.isDir()) { |
1359 | fileSizeFreed = dirCache.constFind(key: info.path().toUtf8())->size; |
1360 | } |
1361 | |
1362 | del(trashId, fileId: info.fileName()); // delete trashed file |
1363 | trashSize -= fileSizeFreed; |
1364 | |
1365 | if (util.usage(size: trashSize + additionalSize) < percent) { // check whether we have enough space now |
1366 | return true; |
1367 | } |
1368 | } |
1369 | |
1370 | return true; |
1371 | } |
1372 | |
1373 | #include "moc_trashimpl.cpp" |
1374 | |