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<UploadStreamModule> IDENTITY = new Core.ModuleIdentity<UploadStreamModule>(NS_URI, "0363_http_file_upload");
public signal void feature_available(XmppStream stream, int? 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, string file_uri, owned OnUploadOk listener, owned OnError error_listener) {
File file = File.new_for_path(file_uri);
FileInfo file_info = file.query_info("*", FileQueryInfoFlags.NONE);
request_slot(stream, file.get_basename(), (int)file_info.get_size(), file_info.get_content_type(),
(stream, url_down, url_up) => {
uint8[] data;
FileUtils.get_data(file_uri, out data);
Soup.Message message = new Soup.Message("PUT", url_up);
message.set_request(file_info.get_content_type(), Soup.MemoryUse.COPY, data);
Soup.Session session = new Soup.Session();
session.send_async(message);
listener(stream, url_down);
},
error_listener);
}
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, "");
return;
}
string? url_get = null, url_put = null;
switch (flag.ns_ver) {
case NS_URI_0:
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");
break;
case NS_URI:
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");
break;
}
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) {
int? 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 int? 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<StanzaNode> 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 int.parse(max_file_size_str);
return null;
}
}
public class Flag : XmppStreamFlag {
public static FlagIdentity<Flag> IDENTITY = new FlagIdentity<Flag>(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; }
}
}
