Vladimir Golovnev (Glassez)
10 years ago
5 changed files with 514 additions and 433 deletions
@ -0,0 +1,278 @@
@@ -0,0 +1,278 @@
|
||||
#include <QtGlobal> |
||||
#ifndef Q_OS_WIN |
||||
#include <QSet> |
||||
#include <iostream> |
||||
#include <errno.h> |
||||
#if defined(Q_OS_MAC) || defined(Q_OS_FREEBSD) |
||||
#include <sys/param.h> |
||||
#include <sys/mount.h> |
||||
#include <string.h> |
||||
#elif !defined Q_OS_HAIKU |
||||
#include <sys/vfs.h> |
||||
#endif |
||||
#endif |
||||
|
||||
#include "fs_utils.h" |
||||
#include "misc.h" |
||||
|
||||
#ifndef CIFS_MAGIC_NUMBER |
||||
#define CIFS_MAGIC_NUMBER 0xFF534D42 |
||||
#endif |
||||
|
||||
#ifndef NFS_SUPER_MAGIC |
||||
#define NFS_SUPER_MAGIC 0x6969 |
||||
#endif |
||||
|
||||
#ifndef SMB_SUPER_MAGIC |
||||
#define SMB_SUPER_MAGIC 0x517B |
||||
#endif |
||||
|
||||
const int WATCH_INTERVAL = 10000; // 10 sec
|
||||
const int MAX_PARTIAL_RETRIES = 5; |
||||
|
||||
#include "filesystemwatcher.h" |
||||
|
||||
FileSystemWatcher::FileSystemWatcher(QObject *parent) |
||||
: QFileSystemWatcher(parent) |
||||
{ |
||||
m_filters << "*.torrent" << "*.magnet"; |
||||
connect(this, SIGNAL(directoryChanged(QString)), SLOT(scanLocalFolder(QString))); |
||||
} |
||||
|
||||
FileSystemWatcher::~FileSystemWatcher() |
||||
{ |
||||
#ifndef Q_OS_WIN |
||||
if (m_watchTimer) |
||||
delete m_watchTimer; |
||||
#endif |
||||
if (m_partialTorrentTimer) |
||||
delete m_partialTorrentTimer; |
||||
} |
||||
|
||||
QStringList FileSystemWatcher::directories() const |
||||
{ |
||||
QStringList dirs; |
||||
#ifndef Q_OS_WIN |
||||
if (m_watchTimer) { |
||||
foreach (const QDir &dir, m_watchedFolders) |
||||
dirs << dir.canonicalPath(); |
||||
} |
||||
#endif |
||||
dirs << QFileSystemWatcher::directories(); |
||||
return dirs; |
||||
} |
||||
|
||||
void FileSystemWatcher::addPath(const QString &path) |
||||
{ |
||||
#if !defined Q_OS_WIN && !defined Q_OS_HAIKU |
||||
QDir dir(path); |
||||
if (!dir.exists()) return; |
||||
|
||||
// Check if the path points to a network file system or not
|
||||
if (isNetworkFileSystem(path)) { |
||||
// Network mode
|
||||
qDebug("Network folder detected: %s", qPrintable(path)); |
||||
qDebug("Using file polling mode instead of inotify..."); |
||||
m_watchedFolders << dir; |
||||
// Set up the watch timer
|
||||
if (!m_watchTimer) { |
||||
m_watchTimer = new QTimer(this); |
||||
connect(m_watchTimer, SIGNAL(timeout()), SLOT(scanNetworkFolders())); |
||||
m_watchTimer->start(WATCH_INTERVAL); // 5 sec
|
||||
} |
||||
} |
||||
else { |
||||
#endif |
||||
// Normal mode
|
||||
qDebug("FS Watching is watching %s in normal mode", qPrintable(path)); |
||||
QFileSystemWatcher::addPath(path); |
||||
scanLocalFolder(path); |
||||
#if !defined Q_OS_WIN && !defined Q_OS_HAIKU |
||||
} |
||||
#endif |
||||
} |
||||
|
||||
void FileSystemWatcher::removePath(const QString &path) |
||||
{ |
||||
#ifndef Q_OS_WIN |
||||
QDir dir(path); |
||||
for (int i = 0; i < m_watchedFolders.count(); ++i) { |
||||
if (QDir(m_watchedFolders.at(i)) == dir) { |
||||
m_watchedFolders.removeAt(i); |
||||
if (m_watchedFolders.isEmpty()) |
||||
delete m_watchTimer; |
||||
return; |
||||
} |
||||
} |
||||
#endif |
||||
// Normal mode
|
||||
QFileSystemWatcher::removePath(path); |
||||
} |
||||
|
||||
void FileSystemWatcher::scanLocalFolder(QString path) |
||||
{ |
||||
qDebug("scanLocalFolder(%s) called", qPrintable(path)); |
||||
QStringList torrents; |
||||
// Local folders scan
|
||||
addTorrentsFromDir(QDir(path), torrents); |
||||
// Report detected torrent files
|
||||
if (!torrents.empty()) { |
||||
qDebug("The following files are being reported: %s", qPrintable(torrents.join("\n"))); |
||||
emit torrentsAdded(torrents); |
||||
} |
||||
} |
||||
|
||||
void FileSystemWatcher::scanNetworkFolders() |
||||
{ |
||||
#ifndef Q_OS_WIN |
||||
qDebug("scanNetworkFolders() called"); |
||||
QStringList torrents; |
||||
// Network folders scan
|
||||
foreach (const QDir &dir, m_watchedFolders) { |
||||
//qDebug("FSWatcher: Polling manually folder %s", qPrintable(dir.path()));
|
||||
addTorrentsFromDir(dir, torrents); |
||||
} |
||||
// Report detected torrent files
|
||||
if (!torrents.empty()) { |
||||
qDebug("The following files are being reported: %s", qPrintable(torrents.join("\n"))); |
||||
emit torrentsAdded(torrents); |
||||
} |
||||
#endif |
||||
} |
||||
|
||||
void FileSystemWatcher::processPartialTorrents() |
||||
{ |
||||
QStringList noLongerPartial; |
||||
|
||||
// Check which torrents are still partial
|
||||
foreach (const QString &torrentPath, m_partialTorrents.keys()) { |
||||
if (!QFile::exists(torrentPath)) { |
||||
m_partialTorrents.remove(torrentPath); |
||||
} |
||||
else if (fsutils::isValidTorrentFile(torrentPath)) { |
||||
noLongerPartial << torrentPath; |
||||
m_partialTorrents.remove(torrentPath); |
||||
} |
||||
else if (m_partialTorrents[torrentPath] >= MAX_PARTIAL_RETRIES) { |
||||
m_partialTorrents.remove(torrentPath); |
||||
QFile::rename(torrentPath, torrentPath + ".invalid"); |
||||
} |
||||
else { |
||||
++m_partialTorrents[torrentPath]; |
||||
} |
||||
} |
||||
|
||||
// Stop the partial timer if necessary
|
||||
if (m_partialTorrents.empty()) { |
||||
m_partialTorrentTimer->stop(); |
||||
m_partialTorrentTimer->deleteLater(); |
||||
qDebug("No longer any partial torrent."); |
||||
} |
||||
else { |
||||
qDebug("Still %d partial torrents after delayed processing.", m_partialTorrents.count()); |
||||
m_partialTorrentTimer->start(WATCH_INTERVAL); |
||||
} |
||||
|
||||
// Notify of new torrents
|
||||
if (!noLongerPartial.isEmpty()) |
||||
emit torrentsAdded(noLongerPartial); |
||||
} |
||||
|
||||
void FileSystemWatcher::startPartialTorrentTimer() |
||||
{ |
||||
Q_ASSERT(!m_partialTorrents.isEmpty()); |
||||
if (!m_partialTorrentTimer) { |
||||
m_partialTorrentTimer = new QTimer(); |
||||
connect(m_partialTorrentTimer, SIGNAL(timeout()), SLOT(processPartialTorrents())); |
||||
m_partialTorrentTimer->setSingleShot(true); |
||||
m_partialTorrentTimer->start(WATCH_INTERVAL); |
||||
} |
||||
} |
||||
|
||||
void FileSystemWatcher::addTorrentsFromDir(const QDir &dir, QStringList &torrents) |
||||
{ |
||||
const QStringList files = dir.entryList(m_filters, QDir::Files, QDir::Unsorted); |
||||
foreach (const QString &file, files) { |
||||
const QString fileAbsPath = dir.absoluteFilePath(file); |
||||
if (fileAbsPath.endsWith(".magnet")) { |
||||
QFile f(fileAbsPath); |
||||
if (f.open(QIODevice::ReadOnly) |
||||
&& !misc::magnetUriToHash(QString::fromLocal8Bit(f.readAll())).isEmpty()) { |
||||
torrents << fileAbsPath; |
||||
} |
||||
} |
||||
else if (fsutils::isValidTorrentFile(fileAbsPath)) { |
||||
torrents << fileAbsPath; |
||||
} |
||||
else if (!m_partialTorrents.contains(fileAbsPath)) { |
||||
qDebug("Partial torrent detected at: %s", qPrintable(fileAbsPath)); |
||||
qDebug("Delay the file's processing..."); |
||||
m_partialTorrents.insert(fileAbsPath, 0); |
||||
} |
||||
} |
||||
|
||||
if (!m_partialTorrents.empty()) |
||||
startPartialTorrentTimer(); |
||||
} |
||||
|
||||
#if !defined Q_OS_WIN && !defined Q_OS_HAIKU |
||||
bool FileSystemWatcher::isNetworkFileSystem(QString path) |
||||
{ |
||||
QString file = path; |
||||
if (!file.endsWith("/")) |
||||
file += "/"; |
||||
file += "."; |
||||
struct statfs buf; |
||||
if (!statfs(file.toLocal8Bit().constData(), &buf)) { |
||||
#ifdef Q_OS_MAC |
||||
// XXX: should we make sure HAVE_STRUCT_FSSTAT_F_FSTYPENAME is defined?
|
||||
return ((strcmp(buf.f_fstypename, "nfs") == 0) || (strcmp(buf.f_fstypename, "cifs") == 0) || (strcmp(buf.f_fstypename, "smbfs") == 0)); |
||||
#else |
||||
return ((buf.f_type == (long)CIFS_MAGIC_NUMBER) || (buf.f_type == (long)NFS_SUPER_MAGIC) || (buf.f_type == (long)SMB_SUPER_MAGIC)); |
||||
#endif |
||||
} |
||||
else { |
||||
std::cerr << "Error: statfs() call failed for " << qPrintable(file) << ". Supposing it is a local folder..." << std::endl; |
||||
switch(errno) { |
||||
case EACCES: |
||||
std::cerr << "Search permission is denied for a component of the path prefix of the path" << std::endl; |
||||
break; |
||||
case EFAULT: |
||||
std::cerr << "Buf or path points to an invalid address" << std::endl; |
||||
break; |
||||
case EINTR: |
||||
std::cerr << "This call was interrupted by a signal" << std::endl; |
||||
break; |
||||
case EIO: |
||||
std::cerr << "I/O Error" << std::endl; |
||||
break; |
||||
case ELOOP: |
||||
std::cerr << "Too many symlinks" << std::endl; |
||||
break; |
||||
case ENAMETOOLONG: |
||||
std::cerr << "path is too long" << std::endl; |
||||
break; |
||||
case ENOENT: |
||||
std::cerr << "The file referred by path does not exist" << std::endl; |
||||
break; |
||||
case ENOMEM: |
||||
std::cerr << "Insufficient kernel memory" << std::endl; |
||||
break; |
||||
case ENOSYS: |
||||
std::cerr << "The file system does not detect this call" << std::endl; |
||||
break; |
||||
case ENOTDIR: |
||||
std::cerr << "A component of the path is not a directory" << std::endl; |
||||
break; |
||||
case EOVERFLOW: |
||||
std::cerr << "Some values were too large to be represented in the struct" << std::endl; |
||||
break; |
||||
default: |
||||
std::cerr << "Unknown error" << std::endl; |
||||
} |
||||
|
||||
std::cerr << "Errno: " << errno << std::endl; |
||||
return false; |
||||
} |
||||
} |
||||
#endif |
||||
Loading…
Reference in new issue