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#include <pch.hpp>
#include "storage.h"
#include "fileSink.h"
#include <commonHelpers.h>
#include <fcntl.h>
#include <logger.h>
#include <boost/filesystem/operations.hpp>
#include <boost/uuid/uuid_generators.hpp>
#include <boost/uuid/uuid_io.hpp>
#include <boost/lexical_cast.hpp>
namespace fs = boost::filesystem;
fs::path Storage::root;
fs::path Storage::byAll;
fs::path Storage::byTitle;
fs::path Storage::byDate;
fs::path Storage::byService;
fs::path Storage::bySchedule;
DECLARE_OPTIONS(Storage, "P2PVR Storage options")
("p2pvr.storage.root", Options::value(&root, "recordings"),
"Root folder in which to store recordings")
("p2pvr.storage.all", Options::value(&byAll, "all"),
"Sub folder in which to store all recordings")
("p2pvr.storage.bytitle", Options::value(&byTitle, "title"),
"Sub folder in which to store by title")
("p2pvr.storage.bydate", Options::value(&byDate, "date"),
"Sub folder in which to store by date")
("p2pvr.storage.byservice", Options::value(&byService, "service"),
"Sub folder in which to store by service")
("p2pvr.storage.byschedule", Options::value(&bySchedule, "schedule"),
"Sub folder in which to store by schedule")
END_OPTIONS(Storage);
inline static
fs::path createPath(const fs::path & start)
{
return start;
}
template <typename Arg>
inline static
fs::path
operator/(const fs::path & lhs, const IceUtil::Optional<Arg> & rhs)
{
if (rhs) {
return lhs / *rhs;
}
return lhs;
}
template <typename Arg, typename ... Args>
inline static
fs::path createPath(const fs::path & start, const Arg & arg, const Args & ... args)
{
auto path = start / arg;
return createPath(path, args...);
}
template <typename Arg, typename ... Args>
inline static
std::string firstNotNull(const Arg & arg, const Args & ...)
{
return boost::lexical_cast<std::string>(arg);
}
template <typename Arg, typename ... Args>
inline static
std::string firstNotNull(const IceUtil::Optional<Arg> & arg, const Args & ... args)
{
return arg ? firstNotNull(*arg, args...) : firstNotNull(args...);
}
template <typename ... Args>
inline static
std::string firstNotNull(const std::string & arg, const Args & ...)
{
return arg;
}
inline static
std::string
formatIf(const boost::format & f)
{
return f.str();
}
template <typename Arg, typename ... Args>
inline static
IceUtil::Optional<std::string>
formatIf(boost::format & f, const IceUtil::Optional<Arg> & arg, const Args & ... args)
{
if (arg) {
f % *arg;
return formatIf(f, args...);
}
else {
return IceUtil::Optional<std::string>();
}
}
template <typename Arg, typename ... Args>
inline static
IceUtil::Optional<std::string>
formatIf(boost::format & f, const Arg & arg, const Args & ... args)
{
f % arg;
return formatIf(f, args...);
}
template <typename... Args>
inline static
IceUtil::Optional<std::string>
formatIf(const std::string & msgfmt, const Args & ... args)
{
boost::format fmt(msgfmt);
return formatIf(fmt, args...);
}
std::string
Storage::CreateForEventRecording(const std::string & ext, const P2PVR::SchedulePtr & schedule, const DVBSI::ServicePtr & service, const DVBSI::EventPtr & event, const Ice::Current &)
{
fs::create_directories(root / byAll);
auto id = boost::lexical_cast<std::string>(boost::uuids::random_generator()());
fs::path path = root / byAll / id;
path.replace_extension(ext);
auto fd = open(path.string().c_str(), O_WRONLY | O_CREAT | O_EXCL, 0664);
if (fd < 0) {
Logger()->messagebf(LOG_ERR, "%s: Failed to open file for writing at %s (%d:%s)", __PRETTY_FUNCTION__,
path, errno, strerror(errno));
throw P2PVR::StorageException(path.string(), strerror(errno));
}
createSymlinks(ext, id, schedule, service, event);
Logger()->messagebf(LOG_INFO, "%s: Created new recording %s", __PRETTY_FUNCTION__, path);
close(fd);
return id;
}
void
Storage::createSymlinks(const std::string & ext, const std::string & target, const P2PVR::SchedulePtr & schedule, const DVBSI::ServicePtr & service, const DVBSI::EventPtr & event)
{
// By title, with optional season and episode information
createSymlink(ext, target, createPath(root, byTitle,
event->Title,
formatIf("Season %02d", event->Season),
firstNotNull(
formatIf("Part %02d of %02d - %s", event->Episode, event->Episodes, event->Subtitle),
formatIf("Episode %02d - %s", event->Episode, event->Subtitle),
formatIf("Part %02d of %02d - %s", event->Episode, event->Episodes, event->Description),
formatIf("Part %02d of %02d", event->Episode, event->Episodes),
formatIf("Episode %02d - %s", event->Episode, event->Description),
event->Subtitle,
event->Description,
formatIf("Episode %02d", event->Episode),
event->StartTime)));
// By date
createSymlink(ext, target, createPath(root, byDate,
formatIf("%04d-%02d-%02d", event->StartTime.Year, event->StartTime.Month, event->StartTime.Day),
firstNotNull(
formatIf("%s - %s", event->Title, event->Subtitle),
formatIf("%s - %s", event->Title, event->Description),
event->Title)));
// By service
createSymlink(ext, target, createPath(root, byService,
service->Name,
firstNotNull(
formatIf("%s - %s", event->Title, event->Subtitle),
formatIf("%s - %s", event->Title, event->Description),
event->Title)));
// By schedule title
createSymlink(ext, target, createPath(root, bySchedule,
formatIf("Title: %s", schedule->Title),
formatIf("%04d-%02d-%02d", event->StartTime.Year, event->StartTime.Month, event->StartTime.Day),
firstNotNull(
formatIf("%s - %s", event->Title, event->Subtitle),
formatIf("%s - %s", event->Title, event->Description),
event->Title)));
// By schedule search
createSymlink(ext, target, createPath(root, bySchedule,
formatIf("Search: %s", schedule->Search),
firstNotNull(
formatIf("%s - %s", event->Title, event->Subtitle),
formatIf("%s - %s", event->Title, event->Description),
event->Title)));
}
void
Storage::createSymlink(const std::string & ext, const std::string & target, const fs::path & link)
{
fs::path path = link;
path.replace_extension(ext);
Logger()->messagebf(LOG_DEBUG, "%s: link(%s) -> target(%s)", __PRETTY_FUNCTION__, path, target);
if (fs::exists(path)) {
Logger()->messagebf(LOG_WARNING, "%s: symlink already exists %s", __PRETTY_FUNCTION__, path);
return;
}
fs::create_directories(path.parent_path());
fs::path relativeTarget;
for (fs::path tmp = path.parent_path(); tmp != root; tmp = tmp.parent_path()) {
relativeTarget /= "..";
}
relativeTarget /= byAll;
relativeTarget /= target;
relativeTarget.replace_extension(ext);
fs::create_symlink(relativeTarget, path);
}
std::string
Storage::FindExtension(const std::string & id)
{
fs::directory_iterator end;
for (fs::directory_iterator itr(root / byAll); itr != end; ++itr) {
if (itr->path().stem() == id) {
return itr->path().extension().string();
}
}
return "";
}
P2PVR::RawDataClientPrx
Storage::OpenForWrite(const std::string & id, const Ice::Current & ice)
{
fs::path path = root / byAll / id;
path.replace_extension(FindExtension(id));
auto fd = open(path.string().c_str(), O_WRONLY | O_APPEND | O_LARGEFILE);
if (fd < 0) {
Logger()->messagebf(LOG_ERR, "%s: Failed to open file for reading at %s (%d:%s)", __PRETTY_FUNCTION__,
path, errno, strerror(errno));
throw P2PVR::StorageException(path.string(), strerror(errno));
}
auto openFile = OpenFilePtr(new OpenFile(ice.adapter, new FileSink(fd)));
openFiles.insert(openFile);
return *openFile;
}
void
Storage::Close(const P2PVR::RawDataClientPrx & file, const Ice::Current &)
{
openFiles.erase(std::find_if(openFiles.begin(), openFiles.end(), [&file](const OpenFilePtr & of) { return *of == file; }));
}
void
Storage::Delete(const std::string & id, const Ice::Current &)
{
fs::path path = root / byAll / id;
path.replace_extension(FindExtension(id));
Logger()->messagebf(LOG_INFO, "%s: Deleting links to %s", __PRETTY_FUNCTION__, path);
DeleteFrom(path, fs::canonical(root));
}
void
Storage::DeleteFrom(const fs::path & path, const fs::path & from)
{
Logger()->messagebf(LOG_DEBUG, "%s: Deleting links to %s to %s", __PRETTY_FUNCTION__, path, from);
fs::directory_iterator end;
for (fs::directory_iterator itr(from); itr != end; ++itr) {
if (fs::is_directory(*itr)) {
DeleteFrom(path, *itr);
}
else {
boost::system::error_code err;
auto link = fs::canonical(*itr, err);
if (err || link == path) {
Logger()->messagebf(LOG_DEBUG, "%s: deleting %s", __PRETTY_FUNCTION__, *itr);
fs::remove(*itr);
}
}
}
if (from != root && fs::is_empty(from)) {
Logger()->messagebf(LOG_DEBUG, "%s: deleting directory %s", __PRETTY_FUNCTION__, from);
fs::remove(from);
}
}
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