using Gee; using Gtk; using Dino.Entities; namespace Dino.Plugins.HttpFiles { public class FileProvider : Plugins.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)"""); Application app = GLib.Application.get_default() as Application; app.plugin_registry.register_message_display(new FileMessageFilterDisplay(dino_db)); stream_interactor.get_module(MessageProcessor.IDENTITY).message_received.connect(check_message); stream_interactor.get_module(MessageProcessor.IDENTITY).message_sent.connect(check_message); stream_interactor.get_module(Manager.IDENTITY).uploading.connect((file_transfer) => { file_transfer.provider = 0; file_incoming(file_transfer); }); stream_interactor.get_module(Manager.IDENTITY).uploaded.connect((file_transfer, url) => { file_transfer.info = url; ignore_once.add(url); }); } public void check_message(Message message, Conversation conversation) { if (ignore_once.remove(message.body)) return; 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; if (message.body.length < 5) return; if (!url_regex.match(message.body)) return; if (!file_ext_regex.match(message.body)) return; var session = new Soup.Session(); var head_message = new Soup.Message("HEAD", message.body); if (head_message != null) { session.send_message(head_message); 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_type != null && content_type.has_prefix("image") && content_length != null && int.parse(content_length) < 5000000) { Soup.Request request = session.request (message.body); FileTransfer file_transfer = new FileTransfer(); 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.input_stream = request.send(); 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); } } } } public class FileMessageFilterDisplay : Plugins.MessageDisplayProvider, Object { public string id { get; set; default="file_message_filter"; } public double priority { get; set; default=10; } public Database db; public FileMessageFilterDisplay(Dino.Database db) { this.db = db; } public bool can_display(Entities.Message? message) { return message_is_file(message); } public Plugins.MetaConversationItem? get_item(Entities.Message message, Conversation conversation) { return null; } private bool message_is_file(Entities.Message message) { Qlite.QueryBuilder builder = db.file_transfer.select() .with(db.file_transfer.info, "=", message.body) .with(db.file_transfer.account_id, "=", message.account.id) .with(db.file_transfer.counterpart_id, "=", db.get_jid_id(message.counterpart)); return builder.count() > 0; } } }