using Xmpp; using Xmpp.Core; using Xmpp.Xep; namespace Dino.Plugins.HttpFiles { private const string NS_URI = "urn:xmpp:http:upload"; private const string NS_URI_0 = "urn:xmpp:http:upload:0"; public class UploadStreamModule : XmppStreamModule { public static Core.ModuleIdentity IDENTITY = new Core.ModuleIdentity(NS_URI, "0363_http_file_upload"); public signal void feature_available(XmppStream stream, long max_file_size); public delegate void OnUploadOk(XmppStream stream, string url_down); public delegate void OnError(XmppStream stream, string error); public void upload(XmppStream stream, InputStream input_stream, string file_name, int file_size, string file_content_type, owned OnUploadOk listener, owned OnError error_listener) { request_slot(stream, file_name, file_size, file_content_type, (stream, url_down, url_up) => { uint8[] buf = new uint8[256]; Array data = new Array(false, true, 0); size_t len = -1; do { try { len = 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); Soup.Message message = new Soup.Message("PUT", url_up); message.set_request(file_content_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)); } private delegate void OnSlotOk(XmppStream stream, string url_get, string url_put); private void request_slot(XmppStream stream, string filename, int file_size, string? content_type, owned OnSlotOk listener, owned OnError error_listener) { Flag? flag = stream.get_flag(Flag.IDENTITY); if (flag == null) return; StanzaNode? request_node = null; switch (flag.ns_ver) { case NS_URI_0: request_node = new StanzaNode.build("request", NS_URI_0).add_self_xmlns(); request_node.put_attribute("filename", filename).put_attribute("size", file_size.to_string()); if (content_type != null) request_node.put_attribute("content-type", content_type); break; case NS_URI: request_node = new StanzaNode.build("request", NS_URI).add_self_xmlns() .put_node(new StanzaNode.build("filename", NS_URI).put_node(new StanzaNode.text(filename))) .put_node(new StanzaNode.build("size", NS_URI).put_node(new StanzaNode.text(file_size.to_string()))); if (content_type != null) { request_node.put_node(new StanzaNode.build("content-type", NS_URI).put_node(new StanzaNode.text(content_type))); } break; } Iq.Stanza iq = new Iq.Stanza.get(request_node) { to=flag.file_store_jid }; stream.get_module(Iq.Module.IDENTITY).send_iq(stream, iq, (stream, iq) => { if (iq.is_error()) { error_listener(stream, "Error getting upload/download url"); return; } string? url_get = null, url_put = null; // FIXME change back to switch on version in a while (prosody bug) url_get = iq.stanza.get_deep_attribute(flag.ns_ver + ":slot", flag.ns_ver + ":get", flag.ns_ver + ":url"); url_put = iq.stanza.get_deep_attribute(flag.ns_ver + ":slot", flag.ns_ver + ":put", flag.ns_ver + ":url"); if (url_get == null && url_put == null) { url_get = iq.stanza.get_deep_string_content(flag.ns_ver + ":slot", flag.ns_ver + ":get"); url_put = iq.stanza.get_deep_string_content(flag.ns_ver + ":slot", flag.ns_ver + ":put"); } if (url_get == null || url_put == null) { error_listener(stream, "Error getting upload/download url"); } listener(stream, url_get, url_put); }); } public override void attach(XmppStream stream) { stream.stream_negotiated.connect(query_availability); } public override void detach(XmppStream stream) { stream.get_module(Bind.Module.IDENTITY).bound_to_resource.disconnect(query_availability); } public override string get_ns() { return NS_URI; } public override string get_id() { return IDENTITY.id; } private void query_availability(XmppStream stream) { stream.get_module(ServiceDiscovery.Module.IDENTITY).request_info(stream, stream.remote_name, (stream, info_result) => { bool available = check_ns_in_info(stream, stream.remote_name, info_result); if (!available) { stream.get_module(ServiceDiscovery.Module.IDENTITY).request_items(stream, stream.remote_name, (stream, items_result) => { foreach (Xep.ServiceDiscovery.Item item in items_result.items) { stream.get_module(ServiceDiscovery.Module.IDENTITY).request_info(stream, item.jid, (stream, info_result) => { check_ns_in_info(stream, item.jid, info_result); }); } }); } }); } private bool check_ns_in_info(XmppStream stream, string jid, Xep.ServiceDiscovery.InfoResult info_result) { bool ver_available = false; bool ver_0_available = false; foreach (string feature in info_result.features) { if (feature == NS_URI_0) { ver_0_available = true; break; } else if (feature == NS_URI) { ver_available = true; } } if (ver_available || ver_0_available) { long max_file_size = extract_max_file_size(info_result); if (ver_0_available) { stream.add_flag(new Flag(jid, NS_URI_0)); } else if (ver_available) { stream.add_flag(new Flag(jid, NS_URI)); } feature_available(stream, max_file_size); return true; } return false; } private long extract_max_file_size(Xep.ServiceDiscovery.InfoResult info_result) { string? max_file_size_str = null; StanzaNode x_node = info_result.iq.stanza.get_deep_subnode("http://jabber.org/protocol/disco#info:query", "jabber:x:data:x"); Gee.List field_nodes = x_node.get_subnodes("field", "jabber:x:data"); foreach (StanzaNode node in field_nodes) { string? var_attr = node.get_attribute("var"); if (var_attr == "max-file-size") { StanzaNode value_node = node.get_subnode("value", "jabber:x:data"); max_file_size_str = value_node.get_string_content(); break; } } if (max_file_size_str != null) return long.parse(max_file_size_str); return -1; } } public class Flag : XmppStreamFlag { public static FlagIdentity IDENTITY = new FlagIdentity(NS_URI, "service_discovery"); public string file_store_jid; public string ns_ver; public int? max_file_size; public Flag(string file_store_jid, string ns_ver) { this.file_store_jid = file_store_jid; this.ns_ver = ns_ver; } public override string get_ns() { return NS_URI; } public override string get_id() { return IDENTITY.id; } } }