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 ignore_once = new ArrayList(); 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; } } }