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using Gdk;
using Gee;
using Xmpp;
using Dino.Entities;
namespace Dino {
public class JingleFileManager : StreamInteractionModule, FileProvider, FileSender, Object {
public static ModuleIdentity<JingleFileManager> IDENTITY = new ModuleIdentity<JingleFileManager>("jingle_files");
public string id { get { return IDENTITY.id; } }
private StreamInteractor stream_interactor;
private HashMap<string, Xmpp.Xep.JingleFileTransfer.FileTransfer> file_transfers
= new HashMap<string, Xmpp.Xep.JingleFileTransfer.FileTransfer>();
public static void start(StreamInteractor stream_interactor) {
JingleFileManager m = new JingleFileManager(stream_interactor);
stream_interactor.add_module(m);
}
private JingleFileManager(StreamInteractor stream_interactor) {
this.stream_interactor = stream_interactor;
stream_interactor.get_module(FileManager.IDENTITY).add_sender(this);
stream_interactor.get_module(FileManager.IDENTITY).add_provider(this);
stream_interactor.stream_negotiated.connect(on_stream_negotiated);
}
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();
FileTransfer file_transfer = new FileTransfer();
file_transfer.account = account;
file_transfer.counterpart = jingle_file_transfer.peer.bare_jid;
file_transfer.ourpart = account.bare_jid;
file_transfer.encryption = Encryption.NONE;
file_transfer.time = new DateTime.now_utc();
file_transfer.local_time = new DateTime.now_utc();
file_transfer.direction = FileTransfer.DIRECTION_RECEIVED;
file_transfer.file_name = jingle_file_transfer.file_name;
file_transfer.size = (int)jingle_file_transfer.size;
file_transfer.state = FileTransfer.State.NOT_STARTED;
file_transfer.provider = 1;
file_transfer.info = id;
file_transfers[id] = jingle_file_transfer;
file_incoming(file_transfer, conversation);
});
}
async void get_meta_info(FileTransfer file_transfer) {
// In Jingle, all the metadata is provided up-front, so there's no more
// metadata to get.
}
async void download(FileTransfer file_transfer, File file_) {
// 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];
jingle_file_transfer.accept(stream);
file_transfer.input_stream = jingle_file_transfer.stream;
// TODO(hrxi): BEGIN: Copied from plugins/http-files/src/file_provider.vala
foreach (IncomingFileProcessor processor in stream_interactor.get_module(FileManager.IDENTITY).incoming_processors) {
if (processor.can_process(file_transfer)) {
processor.process(file_transfer);
}
}
// TODO(hrxi): should this be an &&?
File file = file_;
if (file_transfer.encryption == Encryption.PGP || file.get_path().has_suffix(".pgp")) {
file = File.new_for_path(file.get_path().substring(0, file.get_path().length - 4));
}
// TODO(hrxi): END: Copied from plugins/http-files/src/file_provider.vala
try {
OutputStream os = file.create(FileCreateFlags.REPLACE_DESTINATION);
yield os.splice_async(file_transfer.input_stream, OutputStreamSpliceFlags.CLOSE_SOURCE|OutputStreamSpliceFlags.CLOSE_TARGET);
file_transfer.path = file.get_basename();
file_transfer.input_stream = yield file.read_async();
file_transfer.state = FileTransfer.State.COMPLETE;
} catch (Error e) {
file_transfer.state = FileTransfer.State.FAILED;
return;
}
}
public bool is_upload_available(Conversation conversation) {
// TODO(hrxi) Here and in `send_file`: What should happen if `stream == null`?
XmppStream? stream = stream_interactor.get_stream(conversation.account);
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 bool can_send(Conversation conversation, FileTransfer file_transfer) {
return file_transfer.encryption != Encryption.OMEMO;
}
public void send_file(Conversation conversation, FileTransfer file_transfer) {
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;
}
}
}
}
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