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using Gee;
using Gtk;
using Dino.Entities;
using Xmpp;
namespace Dino.Plugins.HttpFiles {
public class FileProvider : Dino.FileProvider, Object {
public string id { get { return "http"; } }
private StreamInteractor stream_interactor;
private Regex url_regex;
private Regex file_ext_regex;
private Gee.List<string> ignore_once = new ArrayList<string>();
public FileProvider(StreamInteractor stream_interactor, Dino.Database dino_db) {
this.stream_interactor = stream_interactor;
this.url_regex = new Regex("""^(?i)\b((?:[a-z][\w-]+:(?:\/{1,3}|[a-z0-9%])|www\d{0,3}[.]|[a-z0-9.\-]+[.][a-z]{2,4}\/)(?:[^\s()<>]+|\(([^\s()<>]+|(\([^\s()<>]+\)))*\))+(?:\(([^\s()<>]+|(\([^\s()<>]+\)))*\)|[^\s`!()\[\]{};:'".,<>?«»“”‘’]))$""");
this.file_ext_regex = new Regex("""\.(png|jpg|jpeg|svg|gif|pgp)$""");
stream_interactor.get_module(MessageProcessor.IDENTITY).message_sent.connect(check_out_message);
stream_interactor.get_module(MessageProcessor.IDENTITY).received_pipeline.connect(new ReceivedMessageListener(this));
stream_interactor.get_module(Manager.IDENTITY).uploaded.connect((file_transfer, url) => {
file_transfer.info = url;
ignore_once.add(url);
});
}
private class ReceivedMessageListener : MessageListener {
public string[] after_actions_const = new string[]{ "" };
public override string action_group { get { return "DECRYPT"; } }
public override string[] after_actions { get { return after_actions_const; } }
private FileProvider outer;
private StreamInteractor stream_interactor;
public ReceivedMessageListener(FileProvider outer) {
this.outer = outer;
this.stream_interactor = outer.stream_interactor;
}
public override async bool run(Entities.Message message, Xmpp.MessageStanza stanza, Conversation conversation) {
if (!outer.url_regex.match(message.body)) return false;
Jid relevant_jid = stream_interactor.get_module(MucManager.IDENTITY).get_real_jid(message.from, conversation.account) ?? conversation.counterpart;
bool in_roster = stream_interactor.get_module(RosterManager.IDENTITY).get_roster_item(conversation.account, relevant_jid) != null;
if (message.direction == Message.DIRECTION_RECEIVED && !in_roster) return false;
string? oob_url = Xmpp.Xep.OutOfBandData.get_url_from_message(message.stanza);
if ((oob_url != null && oob_url == message.body) || outer.file_ext_regex.match(message.body)) {
yield outer.download_url(message, conversation);
}
return false;
}
}
public void check_out_message(Message message, Conversation conversation) {
if (ignore_once.remove(message.body)) return;
if (message.body.length < 5) return;
if (!url_regex.match(message.body)) return;
if (!file_ext_regex.match(message.body)) return;
download_url(message, conversation);
}
private async bool download_url(Message message, Conversation conversation) {
bool success = false;
var session = new Soup.Session();
var head_message = new Soup.Message("HEAD", message.body);
if (head_message != null) {
SourceFunc callback = download_url.callback;
session.send_async.begin(head_message, null, (obj, res) => {
string? content_type = null, content_length = null;
print(message.body + ":\n");
head_message.response_headers.foreach((name, val) => {
print(name + " " + val + "\n");
if (name == "Content-Type") content_type = val;
if (name == "Content-Length") content_length = val;
});
if (content_length != null && int.parse(content_length) < 5000000) {
FileTransfer file_transfer = new FileTransfer();
try {
Soup.Request request = session.request(message.body);
request.send_async.begin(null, (obj, res) => {
try {
file_transfer.input_stream = request.send_async.end(res);
} catch (Error e) {
Idle.add((owned)callback);
return;
}
file_transfer.account = conversation.account;
file_transfer.counterpart = message.counterpart;
file_transfer.ourpart = message.ourpart;
file_transfer.encryption = Encryption.NONE;
file_transfer.time = message.time;
file_transfer.local_time = message.local_time;
file_transfer.direction = message.direction;
file_transfer.file_name = message.body.substring(message.body.last_index_of("/") + 1);
file_transfer.mime_type = content_type;
file_transfer.size = int.parse(content_length);
file_transfer.state = FileTransfer.State.NOT_STARTED;
file_transfer.provider = 0;
file_transfer.info = message.body;
file_incoming(file_transfer);
success = true;
Idle.add((owned)callback);
});
} catch (Error e) {
Idle.add((owned)callback);
}
} else {
Idle.add((owned)callback);
}
});
yield;
}
return success;
}
}
}
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