using Gdk; using Gee; using Xmpp; using Dino.Entities; namespace Dino { public class JingleFileProvider : FileProvider, Object { private StreamInteractor stream_interactor; private HashMap file_transfers = new HashMap(); public JingleFileProvider(StreamInteractor stream_interactor) { this.stream_interactor = stream_interactor; stream_interactor.stream_negotiated.connect(on_stream_negotiated); } public FileMeta get_file_meta(FileTransfer file_transfer) throws FileReceiveError { var file_meta = new FileMeta(); file_meta.file_name = file_transfer.file_name; file_meta.size = file_transfer.size; return file_meta; } public FileReceiveData? get_file_receive_data(FileTransfer file_transfer) { return new FileReceiveData(); } public async FileMeta get_meta_info(FileTransfer file_transfer, FileReceiveData receive_data, FileMeta file_meta) throws FileReceiveError { return file_meta; } public async InputStream download(FileTransfer file_transfer, FileReceiveData receive_data, FileMeta file_meta) throws FileReceiveError { // TODO(hrxi) What should happen if `stream == null`? XmppStream? stream = stream_interactor.get_stream(file_transfer.account); Xmpp.Xep.JingleFileTransfer.FileTransfer? jingle_file_transfer = file_transfers[file_transfer.info]; if (jingle_file_transfer == null) { throw new FileReceiveError.DOWNLOAD_FAILED("Transfer data not available anymore"); } try { jingle_file_transfer.accept(stream); } catch (IOError e) { throw new FileReceiveError.DOWNLOAD_FAILED("Establishing connection did not work"); } return jingle_file_transfer.stream; } public int get_id() { return 1; } private void on_stream_negotiated(Account account, XmppStream stream) { stream_interactor.module_manager.get_module(account, Xmpp.Xep.JingleFileTransfer.Module.IDENTITY).file_incoming.connect((stream, jingle_file_transfer) => { Conversation? conversation = stream_interactor.get_module(ConversationManager.IDENTITY).get_conversation(jingle_file_transfer.peer.bare_jid, account); if (conversation == null) { // TODO(hrxi): What to do? return; } string id = random_uuid(); file_transfers[id] = jingle_file_transfer; FileMeta file_meta = new FileMeta(); file_meta.size = jingle_file_transfer.size; file_meta.file_name = jingle_file_transfer.file_name; var time = new DateTime.now_utc(); var from = jingle_file_transfer.peer.bare_jid; file_incoming(id, from, time, time, conversation, new FileReceiveData(), file_meta); }); } } public class JingleFileSender : FileSender, Object { private StreamInteractor stream_interactor; public JingleFileSender(StreamInteractor stream_interactor) { this.stream_interactor = stream_interactor; } public bool is_upload_available(Conversation conversation) { XmppStream? stream = stream_interactor.get_stream(conversation.account); if (stream == null) return false; Gee.List? resources = stream.get_flag(Presence.Flag.IDENTITY).get_resources(conversation.counterpart); if (resources == null) return false; foreach (Jid full_jid in resources) { if (stream.get_module(Xep.JingleFileTransfer.Module.IDENTITY).is_available(stream, full_jid)) { return true; } } return false; } public bool can_send(Conversation conversation, FileTransfer file_transfer) { if (conversation.encryption != Encryption.NONE) return false; XmppStream? stream = stream_interactor.get_stream(file_transfer.account); if (stream == null) return false; foreach (Jid full_jid in stream.get_flag(Presence.Flag.IDENTITY).get_resources(conversation.counterpart)) { if (stream.get_module(Xep.JingleFileTransfer.Module.IDENTITY).is_available(stream, full_jid)) { return true; } } return false; } public async FileSendData? prepare_send_file(Conversation conversation, FileTransfer file_transfer, FileMeta file_meta) throws FileSendError { return new FileSendData(); } public async void send_file(Conversation conversation, FileTransfer file_transfer, FileSendData file_send_data) throws FileSendError { // TODO(hrxi) What should happen if `stream == null`? XmppStream? stream = stream_interactor.get_stream(file_transfer.account); foreach (Jid full_jid in stream.get_flag(Presence.Flag.IDENTITY).get_resources(conversation.counterpart)) { // TODO(hrxi): Prioritization of transports (and resources?). if (!stream.get_module(Xep.JingleFileTransfer.Module.IDENTITY).is_available(stream, full_jid)) { continue; } stream.get_module(Xep.JingleFileTransfer.Module.IDENTITY).offer_file_stream.begin(stream, full_jid, file_transfer.input_stream, file_transfer.file_name, file_transfer.size); return; } } public int get_id() { return 1; } public float get_priority() { return 50; } } }