void PluginManager::openPlugin(const std::string &path) {
LOGD("Loading plugin: <%s>", path.c_str());
void *handle = dlopen(path.c_str(), RTLD_LAZY);
if (!handle) {
LOGW("File could not be dlopened <%s> : <%s>", path.c_str(), dlerror());
return;
}
PluginLibPtr handlePtr(handle, std::ptr_fun(dlclose));
//Flush any previous errors
dlerror();
create_t creator = reinterpret_cast<create_t>(dlsym(handle, "create"));
char *error;
if ((error = dlerror()) != NULL) {
LOGE("Couldn't resolve symbol <create> from lib <%s> : <%s>", path.c_str(), error);
return;
}
destroy_t destroyer = reinterpret_cast<destroy_t>(dlsym(handle, "destroy"));
if ((error = dlerror()) != NULL) {
LOGE("Couldn't resolve symbol <destroy> from lib <%s> : <%s>", path.c_str(), error);
return;
}
ExternalPluginPtr pluginPtr(creator(), destroyer);
if (!pluginPtr) {
LOGE("Couldn't create plugin for <%s>", path.c_str());
return;
}
auto policies = pluginPtr->getSupportedPolicyDescr();
if (policies.empty()) {
LOGE("Plugin <%s> does not support any type!", path.c_str());
return;
}
for (auto &desc : policies) {
if (!m_plugins.insert(std::make_pair(desc, pluginPtr)).second) {
LOGW("Policy: type [%" PRIu16 "] name <%s> was already supported.",
desc.type, desc.name.c_str());
} else {
LOGD("Supported policy: type [%" PRIu16 "] name <%s>", desc.type, desc.name.c_str());
}
}
m_pluginLibs.push_back(std::move(handlePtr));
}
void Directory::read() const
{
#if WINAPI_FAMILY_PARTITION (WINAPI_PARTITION_DESKTOP)
WIN32_FIND_DATA f;
auto pattern = m_path + '*';
auto wpattern = charset::ToWide( pattern.c_str() );
auto h = FindFirstFile( wpattern.get(), &f );
if ( h == INVALID_HANDLE_VALUE )
{
LOG_ERROR( "Failed to browse ", m_path );
throw std::system_error( GetLastError(), std::generic_category(), "Failed to browse through directory" );
}
do
{
auto file = charset::FromWide( f.cFileName );
if ( file[0] == '.' && strcasecmp( file.get(), ".nomedia" ) )
continue;
auto fullpath = m_path + file.get();
try
{
if ( ( f.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY ) != 0 )
m_dirs.emplace_back( m_fsFactory.createDirectory(
m_mrl + utils::url::encode( file.get() ) ) );
else
m_files.emplace_back( std::make_shared<File>( fullpath ) );
}
catch ( const std::system_error& ex )
{
LOG_WARN( "Failed to access a listed file/dir: ", ex.what() ,
". Ignoring this entry." );
}
} while ( FindNextFile( h, &f ) != 0 );
FindClose( h );
#else
// We must remove the trailing /
// https://msdn.microsoft.com/en-us/library/windows/desktop/aa363858(v=vs.85).aspx
// «Do not use a trailing backslash (\), which indicates the root directory of a drive»
auto tmpPath = m_path.substr( 0, m_path.length() - 1 );
auto wpath = charset::ToWide( tmpPath.c_str() );
CREATEFILE2_EXTENDED_PARAMETERS params{};
params.dwFileFlags = FILE_FLAG_BACKUP_SEMANTICS;
auto handle = CreateFile2( wpath.get(), GENERIC_READ, FILE_SHARE_READ, OPEN_EXISTING, ¶ms );
if ( handle == INVALID_HANDLE_VALUE )
{
LOG_ERROR( "Failed to open directory ", m_path );
throw std::system_error( GetLastError(), std::generic_category(), "Failed to open directory" );
}
std::unique_ptr<typename std::remove_pointer<HANDLE>::type,
decltype(&CloseHandle)> handlePtr( handle, &CloseHandle );
// Allocating a 32 bytes buffer to contain the file name. If more is required, we'll allocate
size_t buffSize = sizeof( FILE_FULL_DIR_INFO ) + 32;
std::unique_ptr<FILE_FULL_DIR_INFO, void(*)(FILE_FULL_DIR_INFO*)> dirInfo(
reinterpret_cast<FILE_FULL_DIR_INFO*>( malloc( buffSize ) ),
[](FILE_FULL_DIR_INFO* ptr) { free( ptr ); } );
if ( dirInfo == nullptr )
throw std::bad_alloc();
while ( true )
{
auto h = GetFileInformationByHandleEx( handle, FileFullDirectoryInfo, dirInfo.get(), buffSize );
if ( h == 0 )
{
auto error = GetLastError();
if ( error == ERROR_FILE_NOT_FOUND )
break;
else if ( error == ERROR_MORE_DATA )
{
buffSize *= 2;
dirInfo.reset( reinterpret_cast<FILE_FULL_DIR_INFO*>( malloc( buffSize ) ) );
if ( dirInfo == nullptr )
throw std::bad_alloc();
continue;
}
LOG_ERROR( "Failed to browse ", m_path, ". GetLastError(): ", GetLastError() );
throw std::system_error( GetLastError(), std::generic_category(), "Failed to browse through directory" );
}
auto file = charset::FromWide( dirInfo->FileName );
if ( file[0] == '.' && strcasecmp( file.get(), ".nomedia" ) )
continue;
try
{
if ( ( dirInfo->FileAttributes & FILE_ATTRIBUTE_DIRECTORY ) != 0 )
m_dirs.emplace_back( m_fsFactory.createDirectory( m_path + utils::url::encode( file.get() ) ) );
else
m_files.emplace_back( std::make_shared<File>( m_path + file.get()) );
}
catch ( const std::system_error& ex )
{
LOG_WARN( "Failed to access a listed file/dir: ", ex.what() ,
". Ignoring this entry." );
}
}
#endif
}
