static int cfs_getattr(const char *path, struct stat *stbuf)
{
stbuf->st_uid = geteuid();
stbuf->st_gid = getegid();
if (!strcmp(path, "/"))
{
stbuf->st_mode = S_IFDIR | 0755;
stbuf->st_nlink = 2;
return 0;
}
dir_entry *de = path_info(path);
if (!de)
return -ENOENT;
stbuf->st_ctime = stbuf->st_mtime = de->last_modified;
if (de->isdir)
{
stbuf->st_size = 0;
stbuf->st_mode = S_IFDIR | 0755;
stbuf->st_nlink = 2;
}
else
{
stbuf->st_size = de->size;
/* calc. blocks as if 4K blocksize filesystem; stat uses units of 512B */
stbuf->st_blocks = ((4095 + de->size) / 4096) * 8;
fprintf(stderr, "size %ld blocks %ld\n", de->size, stbuf->st_blocks);
stbuf->st_mode = S_IFREG | 0666;
stbuf->st_nlink = 1;
}
return 0;
}
static int cfs_fgetattr(const char* path, struct stat* stbuf,
struct fuse_file_info* info)
{
debugf(DBG_LEVEL_NORM, KBLU "cfs_fgetattr(%s)", path);
openfile* of = (openfile*)(uintptr_t)info->fh;
if (of)
{
//get file. if not in cache will be downloaded.
dir_entry* de = path_info(path);
if (!de)
{
debug_list_cache_content();
debugf(DBG_LEVEL_NORM, KBLU"exit 1: cfs_fgetattr(%s) "KYEL"not-in-cache/cloud",
path);
return -ENOENT;
}
int default_mode_file;
if (option_enable_chmod)
default_mode_file = de->chmod;
else
default_mode_file = 0666;
stbuf->st_size = cloudfs_file_size(of->fd);
stbuf->st_mode = S_IFREG | default_mode_file;
stbuf->st_nlink = 1;
debugf(DBG_LEVEL_NORM, KBLU "exit 0: cfs_fgetattr(%s)", path);
return 0;
}
debugf(DBG_LEVEL_NORM, KRED "exit 1: cfs_fgetattr(%s)", path);
return -ENOENT;
}
static int cfs_rename(const char* src, const char* dst)
{
debugf(DBG_LEVEL_NORM, KBLU"cfs_rename(%s, %s)", src, dst);
dir_entry* src_de = path_info(src);
if (!src_de)
{
debugf(DBG_LEVEL_NORM, KRED"exit 0: cfs_rename(%s,%s) not-found", src, dst);
return -ENOENT;
}
if (src_de->isdir)
{
debugf(DBG_LEVEL_NORM, KRED"exit 1: cfs_rename(%s,%s) cannot rename dirs!",
src, dst);
return -EISDIR;
}
if (cloudfs_copy_object(src, dst))
{
/* FIXME this isn't quite right as doesn't preserve last modified */
//fix done in cloudfs_copy_object()
update_dir_cache(dst, src_de->size, 0, 0);
int result = cfs_unlink(src);
dir_entry* dst_de = path_info(dst);
if (!dst_de)
debugf(DBG_LEVEL_NORM, KRED"cfs_rename(%s,%s) dest-not-found-in-cache", src,
dst);
else
{
debugf(DBG_LEVEL_NORM, KBLU"cfs_rename(%s,%s) upload ok", src, dst);
//copy attributes, shortcut, rather than forcing a download from cloud
copy_dir_entry(src_de, dst_de);
}
debugf(DBG_LEVEL_NORM, KBLU"exit 3: cfs_rename(%s,%s)", src, dst);
return result;
}
debugf(DBG_LEVEL_NORM, KRED"exit 4: cfs_rename(%s,%s) io error", src, dst);
return -EIO;
}
static int cfs_rename(const char *src, const char *dst)
{
dir_entry *src_de = path_info(src);
if (!src_de)
return -ENOENT;
if (src_de->isdir)
return -EISDIR;
if (cloudfs_copy_object(src, dst))
{
/* FIXME this isn't quite right as doesn't preserve last modified */
update_dir_cache(dst, src_de->size, 0, 0);
return cfs_unlink(src);
}
return -EIO;
}
//http://man7.org/linux/man-pages/man2/utimensat.2.html
static int cfs_utimens(const char* path, const struct timespec times[2])
{
debugf(DBG_LEVEL_NORM, KBLU "cfs_utimens(%s)", path);
dir_entry* path_de = path_info(path);
if (!path_de)
{
debugf(DBG_LEVEL_NORM, KRED"exit 0: cfs_utimens(%s) file not in cache", path);
return -ENOENT;
}
struct timespec now;
clock_gettime(CLOCK_REALTIME, &now);
if (path_de->atime.tv_sec != times[0].tv_sec
|| path_de->atime.tv_nsec != times[0].tv_nsec ||
path_de->mtime.tv_sec != times[1].tv_sec
|| path_de->mtime.tv_nsec != times[1].tv_nsec)
{
debugf(DBG_LEVEL_EXT, KCYN
"cfs_utimens: change for %s, prev: atime=%li.%li mtime=%li.%li, new: atime=%li.%li mtime=%li.%li",
path,
path_de->atime.tv_sec, path_de->atime.tv_nsec, path_de->mtime.tv_sec,
path_de->mtime.tv_nsec,
times[0].tv_sec, times[0].tv_nsec, times[1].tv_sec, times[1].tv_nsec);
char time_str[TIME_CHARS] = "";
get_timespec_as_str(×[1], time_str, sizeof(time_str));
debugf(DBG_LEVEL_EXT, KCYN"cfs_utimens: set mtime=[%s]", time_str);
get_timespec_as_str(×[0], time_str, sizeof(time_str));
debugf(DBG_LEVEL_EXT, KCYN"cfs_utimens: set atime=[%s]", time_str);
path_de->atime = times[0];
path_de->mtime = times[1];
// not sure how to best obtain ctime from fuse source file. just record current date.
path_de->ctime = now;
//calling a meta cloud update here is not always needed.
//touch for example opens and closes/flush the file.
//worth implementing a meta cache functionality to avoid multiple uploads on meta changes
//when changing timestamps on very large files, touch command will trigger 2 x long and useless file uploads on cfs_flush()
}
else
debugf(DBG_LEVEL_EXT, KCYN"cfs_utimens: a/m/time not changed");
debugf(DBG_LEVEL_NORM, KBLU "exit 1: cfs_utimens(%s)", path);
return 0;
}
static int cfs_open(const char *path, struct fuse_file_info *info)
{
FILE *temp_file = tmpfile();
dir_entry *de = path_info(path);
if (!(info->flags & O_WRONLY))
{
if (!cloudfs_object_write_fp(path, temp_file))
{
fclose(temp_file);
return -ENOENT;
}
update_dir_cache(path, (de ? de->size : 0), 0);
}
openfile *of = (openfile *)malloc(sizeof(openfile));
of->fd = dup(fileno(temp_file));
fclose(temp_file);
of->flags = info->flags;
info->fh = (uintptr_t)of;
info->direct_io = 1;
return 0;
}
const std::string download_istream::do_type() const {
dgd_scopef(trace_download);
dgd_echo(m_type);
if( !m_type.empty() )
return m_type;
dgd_echo(m_url);
QUrl url;
url.setUrl(QString::fromStdString(m_url));
QFileInfo path_info(url.path());
QString suffix = path_info.suffix();
dgd_echo(suffix);
if( suffix.compare("wrl", Qt::CaseInsensitive) == 0 ||
suffix.compare("vrml", Qt::CaseInsensitive) == 0 ) {
return std::string(openvrml::vrml_media_type);
}
if( suffix.compare("x3d", Qt::CaseInsensitive) == 0 ||
suffix.compare("x3dv", Qt::CaseInsensitive) == 0 ) {
return std::string(openvrml::x3d_vrml_media_type);
}
if( suffix.compare("png", Qt::CaseInsensitive) == 0 ) {
return std::string("image/png");
}
if( suffix.compare("jpg", Qt::CaseInsensitive) == 0 ||
suffix.compare("jpeg", Qt::CaseInsensitive) == 0 ) {
return std::string("image/jpeg");
}
return std::string();
}
void PrettyImage::SaveAs() {
QString filename = QFileInfo(url_.path()).fileName();
if (filename.isEmpty()) filename = "artwork.jpg";
QSettings s;
s.beginGroup(kSettingsGroup);
QString last_save_dir = s.value("last_save_dir", QDir::homePath()).toString();
QString path = last_save_dir.isEmpty() ? QDir::homePath() : last_save_dir;
QFileInfo path_info(path);
if (path_info.isDir()) {
path += "/" + filename;
} else {
path = path_info.path() + "/" + filename;
}
filename = QFileDialog::getSaveFileName(this, tr("Save image"), path);
if (filename.isEmpty()) return;
image_.save(filename);
s.setValue("last_save_dir", last_save_dir);
}
int
server_fcgi(struct httpd *env, struct client *clt)
{
struct server_fcgi_param param;
struct server_config *srv_conf = clt->clt_srv_conf;
struct http_descriptor *desc = clt->clt_descreq;
struct fcgi_record_header *h;
struct fcgi_begin_request_body *begin;
char hbuf[HOST_NAME_MAX+1];
size_t scriptlen;
int pathlen;
int fd = -1, ret;
const char *stripped, *p, *alias, *errstr = NULL;
char *str, *script = NULL;
if (srv_conf->socket[0] == ':') {
struct sockaddr_storage ss;
in_port_t port;
p = srv_conf->socket + 1;
port = strtonum(p, 0, 0xffff, &errstr);
if (errstr != NULL) {
log_warn("%s: strtonum %s, %s", __func__, p, errstr);
goto fail;
}
memset(&ss, 0, sizeof(ss));
ss.ss_family = AF_INET;
((struct sockaddr_in *)
&ss)->sin_addr.s_addr = htonl(INADDR_LOOPBACK);
port = htons(port);
if ((fd = server_socket_connect(&ss, port, srv_conf)) == -1)
goto fail;
} else {
struct sockaddr_un sun;
size_t len;
if ((fd = socket(AF_UNIX, SOCK_STREAM, 0)) == -1)
goto fail;
memset(&sun, 0, sizeof(sun));
sun.sun_family = AF_UNIX;
len = strlcpy(sun.sun_path,
srv_conf->socket, sizeof(sun.sun_path));
if (len >= sizeof(sun.sun_path)) {
errstr = "socket path to long";
goto fail;
}
sun.sun_len = len;
if (connect(fd, (struct sockaddr *)&sun, sizeof(sun)) == -1)
goto fail;
}
socket_set_blockmode(fd, BM_NONBLOCK);
memset(hbuf, 0, sizeof(hbuf));
clt->clt_fcgi_state = FCGI_READ_HEADER;
clt->clt_fcgi_toread = sizeof(struct fcgi_record_header);
if (clt->clt_srvevb != NULL)
evbuffer_free(clt->clt_srvevb);
clt->clt_srvevb = evbuffer_new();
if (clt->clt_srvevb == NULL) {
errstr = "failed to allocate evbuffer";
goto fail;
}
close(clt->clt_fd);
clt->clt_fd = fd;
if (clt->clt_srvbev != NULL)
bufferevent_free(clt->clt_srvbev);
clt->clt_srvbev_throttled = 0;
clt->clt_srvbev = bufferevent_new(fd, server_fcgi_read,
NULL, server_file_error, clt);
if (clt->clt_srvbev == NULL) {
errstr = "failed to allocate fcgi buffer event";
goto fail;
}
memset(¶m, 0, sizeof(param));
h = (struct fcgi_record_header *)¶m.buf;
h->version = 1;
h->type = FCGI_BEGIN_REQUEST;
h->id = htons(1);
h->content_len = htons(sizeof(struct fcgi_begin_request_body));
h->padding_len = 0;
begin = (struct fcgi_begin_request_body *)¶m.buf[sizeof(struct
fcgi_record_header)];
begin->role = htons(FCGI_RESPONDER);
if (bufferevent_write(clt->clt_srvbev, ¶m.buf,
sizeof(struct fcgi_record_header) +
sizeof(struct fcgi_begin_request_body)) == -1) {
errstr = "failed to write to evbuffer";
goto fail;
}
h->type = FCGI_PARAMS;
h->content_len = param.total_len = 0;
alias = desc->http_path_alias != NULL
? desc->http_path_alias
: desc->http_path;
stripped = server_root_strip(alias, srv_conf->strip);
if ((pathlen = asprintf(&script, "%s%s", srv_conf->root, stripped))
== -1) {
errstr = "failed to get script name";
goto fail;
}
scriptlen = path_info(script);
/*
* no part of root should show up in PATH_INFO.
* therefore scriptlen should be >= strlen(root)
*/
if (scriptlen < strlen(srv_conf->root))
scriptlen = strlen(srv_conf->root);
if ((int)scriptlen < pathlen) {
if (fcgi_add_param(¶m, "PATH_INFO",
script + scriptlen, clt) == -1) {
errstr = "failed to encode param";
goto fail;
}
script[scriptlen] = '\0';
} else {
/* RFC 3875 mandates that PATH_INFO is empty if not set */
if (fcgi_add_param(¶m, "PATH_INFO", "", clt) == -1) {
errstr = "failed to encode param";
goto fail;
}
}
/*
* calculate length of http SCRIPT_NAME:
* add length of stripped prefix,
* subtract length of prepended local root
*/
scriptlen += (stripped - alias) - strlen(srv_conf->root);
if ((str = strndup(alias, scriptlen)) == NULL)
goto fail;
ret = fcgi_add_param(¶m, "SCRIPT_NAME", str, clt);
free(str);
if (ret == -1) {
errstr = "failed to encode param";
goto fail;
}
if (fcgi_add_param(¶m, "SCRIPT_FILENAME", script, clt) == -1) {
errstr = "failed to encode param";
goto fail;
}
if (desc->http_query)
if (fcgi_add_param(¶m, "QUERY_STRING", desc->http_query,
clt) == -1) {
errstr = "failed to encode param";
goto fail;
}
if (fcgi_add_param(¶m, "DOCUMENT_ROOT", srv_conf->root,
clt) == -1) {
errstr = "failed to encode param";
goto fail;
}
if (fcgi_add_param(¶m, "DOCUMENT_URI", alias,
clt) == -1) {
errstr = "failed to encode param";
goto fail;
}
if (fcgi_add_param(¶m, "GATEWAY_INTERFACE", "CGI/1.1",
clt) == -1) {
errstr = "failed to encode param";
goto fail;
}
if (srv_conf->flags & SRVFLAG_AUTH) {
if (fcgi_add_param(¶m, "REMOTE_USER",
clt->clt_remote_user, clt) == -1) {
errstr = "failed to encode param";
goto fail;
}
}
/* Add HTTP_* headers */
if (server_headers(clt, desc, server_fcgi_writeheader, ¶m) == -1) {
errstr = "failed to encode param";
goto fail;
}
if (srv_conf->flags & SRVFLAG_TLS)
if (fcgi_add_param(¶m, "HTTPS", "on", clt) == -1) {
errstr = "failed to encode param";
goto fail;
}
(void)print_host(&clt->clt_ss, hbuf, sizeof(hbuf));
if (fcgi_add_param(¶m, "REMOTE_ADDR", hbuf, clt) == -1) {
errstr = "failed to encode param";
goto fail;
}
(void)snprintf(hbuf, sizeof(hbuf), "%d", ntohs(clt->clt_port));
if (fcgi_add_param(¶m, "REMOTE_PORT", hbuf, clt) == -1) {
errstr = "failed to encode param";
goto fail;
}
if (fcgi_add_param(¶m, "REQUEST_METHOD",
server_httpmethod_byid(desc->http_method), clt) == -1) {
errstr = "failed to encode param";
goto fail;
}
if (!desc->http_query) {
if (fcgi_add_param(¶m, "REQUEST_URI", desc->http_path,
clt) == -1) {
errstr = "failed to encode param";
goto fail;
}
} else {
if (asprintf(&str, "%s?%s", desc->http_path,
desc->http_query) == -1) {
errstr = "failed to encode param";
goto fail;
}
ret = fcgi_add_param(¶m, "REQUEST_URI", str, clt);
free(str);
if (ret == -1) {
errstr = "failed to encode param";
goto fail;
}
}
(void)print_host(&clt->clt_srv_ss, hbuf, sizeof(hbuf));
if (fcgi_add_param(¶m, "SERVER_ADDR", hbuf, clt) == -1) {
errstr = "failed to encode param";
goto fail;
}
(void)snprintf(hbuf, sizeof(hbuf), "%d",
ntohs(server_socket_getport(&clt->clt_srv_ss)));
if (fcgi_add_param(¶m, "SERVER_PORT", hbuf, clt) == -1) {
errstr = "failed to encode param";
goto fail;
}
if (fcgi_add_param(¶m, "SERVER_NAME", srv_conf->name,
clt) == -1) {
errstr = "failed to encode param";
goto fail;
}
if (fcgi_add_param(¶m, "SERVER_PROTOCOL", desc->http_version,
clt) == -1) {
errstr = "failed to encode param";
goto fail;
}
if (fcgi_add_param(¶m, "SERVER_SOFTWARE", HTTPD_SERVERNAME,
clt) == -1) {
errstr = "failed to encode param";
goto fail;
}
if (param.total_len != 0) { /* send last params record */
if (bufferevent_write(clt->clt_srvbev, ¶m.buf,
sizeof(struct fcgi_record_header) +
ntohs(h->content_len)) == -1) {
errstr = "failed to write to client evbuffer";
goto fail;
}
}
/* send "no more params" message */
h->content_len = 0;
if (bufferevent_write(clt->clt_srvbev, ¶m.buf,
sizeof(struct fcgi_record_header)) == -1) {
errstr = "failed to write to client evbuffer";
goto fail;
}
bufferevent_settimeout(clt->clt_srvbev,
srv_conf->timeout.tv_sec, srv_conf->timeout.tv_sec);
bufferevent_enable(clt->clt_srvbev, EV_READ|EV_WRITE);
if (clt->clt_toread != 0) {
server_read_httpcontent(clt->clt_bev, clt);
bufferevent_enable(clt->clt_bev, EV_READ);
} else {
bufferevent_disable(clt->clt_bev, EV_READ);
fcgi_add_stdin(clt, NULL);
}
if (strcmp(desc->http_version, "HTTP/1.1") == 0) {
clt->clt_fcgi_chunked = 1;
} else {
/* HTTP/1.0 does not support chunked encoding */
clt->clt_fcgi_chunked = 0;
clt->clt_persist = 0;
}
clt->clt_fcgi_end = 0;
clt->clt_done = 0;
free(script);
return (0);
fail:
free(script);
if (errstr == NULL)
errstr = strerror(errno);
server_abort_http(clt, 500, errstr);
return (-1);
}
void LibraryWatcher::ScanSubdirectory(const QString& path,
const Subdirectory& subdir,
ScanTransaction* t,
bool force_noincremental) {
QFileInfo path_info(path);
QDir path_dir(path);
// Do not scan symlinked dirs that are already in collection
if (path_info.isSymLink()) {
QString real_path = path_info.symLinkTarget();
for (const Directory& dir : watched_dirs_) {
if (real_path.startsWith(dir.path)) {
t->AddToProgress(1);
return;
}
}
}
// Do not scan directories containing a .nomedia or .nomusic file
if (path_dir.exists(kNoMediaFile) ||
path_dir.exists(kNoMusicFile)) {
t->AddToProgress(1);
return;
}
if (!t->ignores_mtime() && !force_noincremental && t->is_incremental() &&
subdir.mtime == path_info.lastModified().toTime_t()) {
// The directory hasn't changed since last time
t->AddToProgress(1);
return;
}
QMap<QString, QStringList> album_art;
QStringList files_on_disk;
SubdirectoryList my_new_subdirs;
// If a directory is moved then only its parent gets a changed notification,
// so we need to look and see if any of our children don't exist any more.
// If one has been removed, "rescan" it to get the deleted songs
SubdirectoryList previous_subdirs = t->GetImmediateSubdirs(path);
for (const Subdirectory& subdir : previous_subdirs) {
if (!QFile::exists(subdir.path) && subdir.path != path) {
t->AddToProgressMax(1);
ScanSubdirectory(subdir.path, subdir, t, true);
}
}
// First we "quickly" get a list of the files in the directory that we
// think might be music. While we're here, we also look for new
// subdirectories
// and possible album artwork.
QDirIterator it(
path, QDir::Dirs | QDir::Files | QDir::Hidden | QDir::NoDotAndDotDot);
while (it.hasNext()) {
if (stop_requested_) return;
QString child(it.next());
QFileInfo child_info(child);
if (child_info.isDir()) {
if (!child_info.isHidden() && !t->HasSeenSubdir(child)) {
// We haven't seen this subdirectory before - add it to a list and
// later we'll tell the backend about it and scan it.
Subdirectory new_subdir;
new_subdir.directory_id = -1;
new_subdir.path = child;
new_subdir.mtime = child_info.lastModified().toTime_t();
my_new_subdirs << new_subdir;
}
} else {
QString ext_part(ExtensionPart(child));
QString dir_part(DirectoryPart(child));
if (sValidImages.contains(ext_part))
album_art[dir_part] << child;
else if (!child_info.isHidden())
files_on_disk << child;
}
}
if (stop_requested_) return;
// Ask the database for a list of files in this directory
SongList songs_in_db = t->FindSongsInSubdirectory(path);
QSet<QString> cues_processed;
// Now compare the list from the database with the list of files on disk
for (const QString& file : files_on_disk) {
if (stop_requested_) return;
// associated cue
QString matching_cue = NoExtensionPart(file) + ".cue";
Song matching_song;
if (FindSongByPath(songs_in_db, file, &matching_song)) {
uint matching_cue_mtime = GetMtimeForCue(matching_cue);
// The song is in the database and still on disk.
// Check the mtime to see if it's been changed since it was added.
QFileInfo file_info(file);
if (!file_info.exists()) {
// Partially fixes race condition - if file was removed between being
// added to the list and now.
files_on_disk.removeAll(file);
continue;
}
// cue sheet's path from library (if any)
QString song_cue = matching_song.cue_path();
uint song_cue_mtime = GetMtimeForCue(song_cue);
bool cue_deleted = song_cue_mtime == 0 && matching_song.has_cue();
bool cue_added = matching_cue_mtime != 0 && !matching_song.has_cue();
// watch out for cue songs which have their mtime equal to
// qMax(media_file_mtime, cue_sheet_mtime)
bool changed =
(matching_song.mtime() !=
qMax(file_info.lastModified().toTime_t(), song_cue_mtime)) ||
cue_deleted || cue_added;
// Also want to look to see whether the album art has changed
QString image = ImageForSong(file, album_art);
if ((matching_song.art_automatic().isEmpty() && !image.isEmpty()) ||
(!matching_song.art_automatic().isEmpty() &&
!matching_song.has_embedded_cover() &&
!QFile::exists(matching_song.art_automatic()))) {
changed = true;
}
// the song's changed - reread the metadata from file
if (t->ignores_mtime() || changed) {
qLog(Debug) << file << "changed";
// if cue associated...
if (!cue_deleted && (matching_song.has_cue() || cue_added)) {
UpdateCueAssociatedSongs(file, path, matching_cue, image, t);
// if no cue or it's about to lose it...
} else {
UpdateNonCueAssociatedSong(file, matching_song, image, cue_deleted,
t);
}
}
// nothing has changed - mark the song available without re-scanning
if (matching_song.is_unavailable()) t->readded_songs << matching_song;
} else {
// The song is on disk but not in the DB
SongList song_list =
ScanNewFile(file, path, matching_cue, &cues_processed);
if (song_list.isEmpty()) {
continue;
}
qLog(Debug) << file << "created";
// choose an image for the song(s)
QString image = ImageForSong(file, album_art);
for (Song song : song_list) {
song.set_directory_id(t->dir());
if (song.art_automatic().isEmpty()) song.set_art_automatic(image);
t->new_songs << song;
}
}
}
// Look for deleted songs
for (const Song& song : songs_in_db) {
if (!song.is_unavailable() &&
!files_on_disk.contains(song.url().toLocalFile())) {
qLog(Debug) << "Song deleted from disk:" << song.url().toLocalFile();
t->deleted_songs << song;
}
}
// Add this subdir to the new or touched list
Subdirectory updated_subdir;
updated_subdir.directory_id = t->dir();
updated_subdir.mtime =
path_info.exists() ? path_info.lastModified().toTime_t() : 0;
updated_subdir.path = path;
if (subdir.directory_id == -1)
t->new_subdirs << updated_subdir;
else
t->touched_subdirs << updated_subdir;
t->AddToProgress(1);
// Recurse into the new subdirs that we found
t->AddToProgressMax(my_new_subdirs.count());
for (const Subdirectory& my_new_subdir : my_new_subdirs) {
if (stop_requested_) return;
ScanSubdirectory(my_new_subdir.path, my_new_subdir, t, true);
}
}
static int cfs_open(const char *path, struct fuse_file_info *info)
{
FILE *temp_file;
dir_entry *de = path_info(path);
if (*temp_dir)
{
char tmp_path[PATH_MAX];
strncpy(tmp_path, path, PATH_MAX);
char *pch;
while((pch = strchr(tmp_path, '/'))) {
*pch = '.';
}
char file_path[PATH_MAX];
snprintf(file_path, PATH_MAX, "%s/.cloudfuse%ld-%s", temp_dir,
(long)getpid(), tmp_path);
if(access(file_path, F_OK) != -1)
{
// file exists
temp_file = fopen(file_path, "r");
}
else if (!(info->flags & O_WRONLY))
{
// we need to lock on the filename another process could open the file
// while we are writing to it and then only read part of the file
// duplicate the directory caching datastructure to make the code easier
// to understand.
// each file in the cache needs:
// filename, is_writing, last_closed, is_removing
// the first time a file is opened a new entry is created in the cache
// setting the filename and is_writing to true. This check needs to be
// wrapped with a lock.
//
// each time a file is closed we set the last_closed for the file to now
// and we check the cache for files whose last
// closed is greater than cache_timeout, then start a new thread rming
// that file.
// TODO: just to prevent this craziness for now
temp_file = fopen(file_path, "w+b");
if (!cloudfs_object_write_fp(path, temp_file))
{
fclose(temp_file);
return -ENOENT;
}
}
}
else
{
temp_file = tmpfile();
if (!(info->flags & O_WRONLY))
{
if (!cloudfs_object_write_fp(path, temp_file))
{
fclose(temp_file);
return -ENOENT;
}
}
}
update_dir_cache(path, (de ? de->size : 0), 0, 0);
openfile *of = (openfile *)malloc(sizeof(openfile));
of->fd = dup(fileno(temp_file));
if (of->fd == -1)
return -ENOENT;
fclose(temp_file);
of->flags = info->flags;
info->fh = (uintptr_t)of;
info->direct_io = 1;
return 0;
}
static bool newer_than(const QString& path, const QDateTime& time)
{
QFileInfo path_info(path);
if (!path_info.exists())
return false;
else if (!path_info.isDir())
return path_info.lastModified() > time;
IgnoreList ignore_list;
stack<QString> relatives;
relatives.push("");
while (!relatives.empty())
{
const QString r = relatives.top();
relatives.pop();
// 处理特殊操作
if (r == SPECIAL_ID)
{
ignore_list.pop_config();
continue;
}
// 被忽略列表中标记为忽略
if (ignore_list.is_ignored(r))
continue;
const QString p = path_join(path, r);
if (!QFileInfo(p).isDir())
{
if (QFileInfo(p).lastModified() > time)
return true;
// else continue
}
else
{
// 处理忽略列表
if (QFileInfo(path_join(p, IGNORE_FILE1)).exists())
{
ignore_list.push_config(r, path_join(p, IGNORE_FILE1));
relatives.push(SPECIAL_ID);
}
else if (QFileInfo(path_join(p, IGNORE_FILE2)).exists())
{
ignore_list.push_config(r, path_join(p, IGNORE_FILE2));
relatives.push(SPECIAL_ID);
}
else if (QFileInfo(path_join(p, IGNORE_FILE3)).exists())
{
ignore_list.push_config(r, path_join(p, IGNORE_FILE3));
relatives.push(SPECIAL_ID);
}
// 遍历文件夹
QStringList children = QDir(p).entryList(QDir::Files | QDir::Dirs |
QDir::AccessMask | QDir::NoDotAndDotDot);
for (size_t i = 0, size = children.size(); i < size; ++i)
{
const QString& e = children.at(i);
relatives.push(path_join(r, e));
}
}
}
return false;
}
static int cfs_getattr(const char* path, struct stat* stbuf)
{
debugf(DBG_LEVEL_NORM, KBLU "cfs_getattr(%s)", path);
//return standard values for root folder
if (!strcmp(path, "/"))
{
stbuf->st_uid = geteuid();
stbuf->st_gid = getegid();
stbuf->st_mode = S_IFDIR | 0755;
stbuf->st_nlink = 2;
debug_list_cache_content();
debugf(DBG_LEVEL_NORM, KBLU "exit 0: cfs_getattr(%s)", path);
return 0;
}
//get file. if not in cache will be downloaded.
dir_entry* de = path_info(path);
if (!de)
{
debug_list_cache_content();
debugf(DBG_LEVEL_NORM, KBLU"exit 1: cfs_getattr(%s) "KYEL"not-in-cache/cloud",
path);
return -ENOENT;
}
//lazzy download of file metadata, only when really needed
if (option_get_extended_metadata && !de->metadata_downloaded)
get_file_metadata(de);
if (option_enable_chown)
{
stbuf->st_uid = de->uid;
stbuf->st_gid = de->gid;
}
else
{
stbuf->st_uid = geteuid();
stbuf->st_gid = getegid();
}
// change needed due to utimens
stbuf->st_atime = de->atime.tv_sec;
stbuf->st_atim.tv_nsec = de->atime.tv_nsec;
stbuf->st_mtime = de->mtime.tv_sec;
stbuf->st_mtim.tv_nsec = de->mtime.tv_nsec;
stbuf->st_ctime = de->ctime.tv_sec;
stbuf->st_ctim.tv_nsec = de->ctime.tv_nsec;
char time_str[TIME_CHARS] = "";
get_timespec_as_str(&(de->atime), time_str, sizeof(time_str));
debugf(DBG_LEVEL_EXT, KCYN"cfs_getattr: atime=[%s]", time_str);
get_timespec_as_str(&(de->mtime), time_str, sizeof(time_str));
debugf(DBG_LEVEL_EXT, KCYN"cfs_getattr: mtime=[%s]", time_str);
get_timespec_as_str(&(de->ctime), time_str, sizeof(time_str));
debugf(DBG_LEVEL_EXT, KCYN"cfs_getattr: ctime=[%s]", time_str);
int default_mode_dir, default_mode_file;
if (option_enable_chmod)
{
default_mode_dir = de->chmod;
default_mode_file = de->chmod;
}
else
{
default_mode_dir = 0755;
default_mode_file = 0666;
}
if (de->isdir)
{
stbuf->st_size = 0;
stbuf->st_mode = S_IFDIR | default_mode_dir;
stbuf->st_nlink = 2;
}
else if (de->islink)
{
stbuf->st_size = 1;
stbuf->st_mode = S_IFLNK | default_mode_dir;
stbuf->st_nlink = 1;
stbuf->st_size = de->size;
/* calc. blocks as if 4K blocksize filesystem; stat uses units of 512B */
stbuf->st_blocks = ((4095 + de->size) / 4096) * 8;
}
else
{
stbuf->st_size = de->size;
/* calc. blocks as if 4K blocksize filesystem; stat uses units of 512B */
stbuf->st_blocks = ((4095 + de->size) / 4096) * 8;
stbuf->st_mode = S_IFREG | default_mode_file;
stbuf->st_nlink = 1;
}
debugf(DBG_LEVEL_NORM, KBLU "exit 2: cfs_getattr(%s)", path);
return 0;
}
// open (download) file from cloud
// todo: implement etag optimisation, download only if content changed, http://www.17od.com/2012/12/19/ten-useful-openstack-swift-features/
static int cfs_open(const char* path, struct fuse_file_info* info)
{
debugf(DBG_LEVEL_NORM, KBLU "cfs_open(%s)", path);
FILE* temp_file = NULL;
int errsv;
dir_entry* de = path_info(path);
if (*temp_dir)
{
char file_path_safe[NAME_MAX];
get_safe_cache_file_path(path, file_path_safe, temp_dir);
debugf(DBG_LEVEL_EXT, "cfs_open: try open (%s)", file_path_safe);
if (access(file_path_safe, F_OK) != -1)
{
// file exists
temp_file = fopen(file_path_safe, "r");
errsv = errno;
if (temp_file == NULL)
{
debugf(DBG_LEVEL_NORM,
KRED"exit 0: cfs_open can't open temp_file=[%s] err=%d:%s", file_path_safe,
errsv, strerror(errsv));
return -ENOENT;
}
else
debugf(DBG_LEVEL_EXT, "cfs_open: file exists");
}
else
{
errsv = errno;
debugf(DBG_LEVEL_EXT, "cfs_open: file not in cache, err=%s", strerror(errsv));
//FIXME: commented out as this condition will not be meet in some odd cases and program will crash
//if (!(info->flags & O_WRONLY)) {
debugf(DBG_LEVEL_EXT, "cfs_open: opening for write");
// we need to lock on the filename another process could open the file
// while we are writing to it and then only read part of the file
// duplicate the directory caching datastructure to make the code easier
// to understand.
// each file in the cache needs:
// filename, is_writing, last_closed, is_removing
// the first time a file is opened a new entry is created in the cache
// setting the filename and is_writing to true. This check needs to be
// wrapped with a lock.
//
// each time a file is closed we set the last_closed for the file to now
// and we check the cache for files whose last
// closed is greater than cache_timeout, then start a new thread rming
// that file.
// TODO: just to prevent this craziness for now
temp_file = fopen(file_path_safe, "w+b");
errsv = errno;
if (temp_file == NULL)
{
debugf(DBG_LEVEL_NORM,
KRED"exit 1: cfs_open cannot open temp_file=[%s] err=%d:%s", file_path_safe,
errsv, strerror(errsv));
return -ENOENT;
}
if (!cloudfs_object_write_fp(path, temp_file))
{
fclose(temp_file);
debugf(DBG_LEVEL_NORM, KRED "exit 2: cfs_open(%s) cannot download/write",
path);
return -ENOENT;
}
}
}
else
{
temp_file = tmpfile();
if (temp_file == NULL)
{
debugf(DBG_LEVEL_NORM, KRED"exit 3: cfs_open cannot create temp_file err=%s",
strerror(errno));
return -ENOENT;
}
if (!(info->flags & O_TRUNC))
{
if (!cloudfs_object_write_fp(path, temp_file) && !(info->flags & O_CREAT))
{
fclose(temp_file);
debugf(DBG_LEVEL_NORM, KRED"exit 4: cfs_open(%s) cannot download/write", path);
return -ENOENT;
}
}
}
update_dir_cache(path, (de ? de->size : 0), 0, 0);
openfile* of = (openfile*)malloc(sizeof(openfile));
of->fd = dup(fileno(temp_file));
if (of->fd == -1)
{
//FIXME: potential leak if free not used?
free(of);
debugf(DBG_LEVEL_NORM, KRED "exit 5: cfs_open(%s) of->fd", path);
return -ENOENT;
}
fclose(temp_file);
//TODO: why this allocation to of?
of->flags = info->flags;
info->fh = (uintptr_t)of;
info->direct_io = 1;
info->nonseekable = 0;
//FIXME: potential leak if free(of) not used? although if free(of) is used will generate bad descriptor errors
debugf(DBG_LEVEL_NORM, KBLU "exit 6: cfs_open(%s)", path);
return 0;
}