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using Dino.Entities;
using Xmpp;
using Gee;
namespace Dino.Plugins.HttpFiles {
public class Manager : StreamInteractionModule, FileSender, Object {
public static ModuleIdentity<Manager> IDENTITY = new ModuleIdentity<Manager>("http_files");
public string id { get { return IDENTITY.id; } }
public signal void uploading(FileTransfer file_transfer);
public signal void uploaded(FileTransfer file_transfer, string url);
private StreamInteractor stream_interactor;
private Database db;
private HashMap<Account, long> max_file_sizes = new HashMap<Account, long>(Account.hash_func, Account.equals_func);
public static void start(StreamInteractor stream_interactor, Database db) {
Manager m = new Manager(stream_interactor, db);
stream_interactor.add_module(m);
}
private Manager(StreamInteractor stream_interactor, Database db) {
this.stream_interactor = stream_interactor;
this.db = db;
stream_interactor.get_module(FileManager.IDENTITY).add_sender(this);
stream_interactor.stream_negotiated.connect(on_stream_negotiated);
stream_interactor.get_module(MessageProcessor.IDENTITY).build_message_stanza.connect(check_add_oob);
}
public delegate void OnUploadOk(XmppStream stream, string url_down);
public delegate void OnError(XmppStream stream, string error);
public void upload(XmppStream stream, FileTransfer file_transfer, owned OnUploadOk listener, owned OnError error_listener) {
uint8[] buf = new uint8[256];
Array<uint8> data = new Array<uint8>(false, true, 0);
size_t len = -1;
do {
try {
len = file_transfer.input_stream.read(buf);
} catch (IOError error) {
error_listener(stream, @"HTTP upload: IOError reading stream: $(error.message)");
}
data.append_vals(buf, (uint) len);
} while(len > 0);
stream_interactor.module_manager.get_module(file_transfer.account, Xmpp.Xep.HttpFileUpload.Module.IDENTITY).request_slot(stream, file_transfer.server_file_name, (int) data.length, file_transfer.mime_type,
(stream, url_down, url_up) => {
Soup.Message message = new Soup.Message("PUT", url_up);
message.set_request(file_transfer.mime_type, Soup.MemoryUse.COPY, data.data);
Soup.Session session = new Soup.Session();
session.send_async.begin(message, null, (obj, res) => {
try {
session.send_async.end(res);
if (message.status_code >= 200 && message.status_code < 300) {
listener(stream, url_down);
} else {
error_listener(stream, "HTTP status code " + message.status_code.to_string());
}
} catch (Error e) {
error_listener(stream, e.message);
}
});
},
(stream, error) => error_listener(stream, error));
}
public void send_file(Conversation conversation, FileTransfer file_transfer) {
Xmpp.XmppStream? stream = stream_interactor.get_stream(file_transfer.account);
if (stream != null) {
upload(stream, file_transfer,
(stream, url_down) => {
uploaded(file_transfer, url_down);
file_transfer.info = url_down; // store the message content temporarily so the message gets filtered out
Entities.Message message = stream_interactor.get_module(MessageProcessor.IDENTITY).create_out_message(url_down, conversation);
message.encryption = Encryption.NONE;
stream_interactor.get_module(MessageProcessor.IDENTITY).send_message(message, conversation);
file_transfer.info = message.id.to_string();
ContentItem? content_item = stream_interactor.get_module(ContentItemStore.IDENTITY).get_item(conversation, 1, message.id);
if (content_item != null) {
stream_interactor.get_module(ContentItemStore.IDENTITY).set_item_hide(content_item, true);
}
},
(stream, error_str) => {
print(@"Failed getting upload url + $error_str\n");
file_transfer.state = FileTransfer.State.FAILED;
}
);
}
}
public bool can_send(Conversation conversation, FileTransfer file_transfer) {
return file_transfer.encryption != Encryption.OMEMO;
}
public bool is_upload_available(Conversation conversation) {
lock (max_file_sizes) {
return max_file_sizes.has_key(conversation.account);
}
}
public long get_max_file_size(Account account) {
lock (max_file_sizes) {
return max_file_sizes[account];
}
}
private void on_stream_negotiated(Account account, XmppStream stream) {
stream_interactor.module_manager.get_module(account, Xmpp.Xep.HttpFileUpload.Module.IDENTITY).feature_available.connect((stream, max_file_size) => {
lock (max_file_sizes) {
max_file_sizes[account] = max_file_size;
}
upload_available(account);
});
}
private void check_add_oob(Entities.Message message, Xmpp.MessageStanza message_stanza, Conversation conversation) {
if (message_is_file(db, message) && message.body.has_prefix("http")) {
Xep.OutOfBandData.add_url_to_message(message_stanza, message_stanza.body);
}
}
}
public class FileMessageFilter : ContentFilter, Object {
public Database db;
public FileMessageFilter(Dino.Database db) {
this.db = db;
}
public bool discard(ContentItem content_item) {
if (content_item.type_ == MessageItem.TYPE) {
MessageItem message_item = content_item as MessageItem;
return message_is_file(db, message_item.message);
}
return false;
}
}
private bool message_is_file(Database db, Entities.Message message) {
Qlite.QueryBuilder builder = db.file_transfer.select({db.file_transfer.id}).with(db.file_transfer.info, "=", message.id.to_string());
Qlite.QueryBuilder builder2 = db.file_transfer.select({db.file_transfer.id}).with(db.file_transfer.info, "=", message.body);
return builder.count() > 0 || builder2.count() > 0;
}
}
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