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using Gdk;
using Gee;
using Xmpp;
using Dino.Entities;
namespace Dino {
public class JingleFileProvider : FileProvider, Object {
private StreamInteractor stream_interactor;
private HashMap<string, Xmpp.Xep.JingleFileTransfer.FileTransfer> file_transfers = new HashMap<string, Xmpp.Xep.JingleFileTransfer.FileTransfer>();
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");
}
jingle_file_transfer.accept(stream);
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<Jid>? 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; }
}
}
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