diff options
Diffstat (limited to 'xmpp-vala/src')
| -rw-r--r-- | xmpp-vala/src/module/xep/0363_http_file_upload.vala | 160 |
1 files changed, 160 insertions, 0 deletions
diff --git a/xmpp-vala/src/module/xep/0363_http_file_upload.vala b/xmpp-vala/src/module/xep/0363_http_file_upload.vala new file mode 100644 index 00000000..d2e2af2c --- /dev/null +++ b/xmpp-vala/src/module/xep/0363_http_file_upload.vala @@ -0,0 +1,160 @@ +using Xmpp; +using Xmpp; +using Xmpp.Xep; + +namespace Xmpp.Xep.HttpFileUpload { + +private const string NS_URI = "urn:xmpp:http:upload"; +private const string NS_URI_0 = "urn:xmpp:http:upload:0"; + +public class Module : XmppStreamModule { + public static Xmpp.ModuleIdentity<Module> IDENTITY = new Xmpp.ModuleIdentity<Module>(NS_URI, "0363_http_file_upload"); + + public signal void feature_available(XmppStream stream, long max_file_size); + public signal void received_url(XmppStream stream, MessageStanza message); + + public delegate void OnSlotOk(XmppStream stream, string url_get, string url_put); + public delegate void OnError(XmppStream stream, string error); + public 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 (Error Iq)"); + 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, Jid 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<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 long.parse(max_file_size_str); + return -1; + } +} + +public class ReceivedPipelineListener : StanzaListener<MessageStanza> { + + private const string[] after_actions_const = {"EXTRACT_MESSAGE_2"}; + + public override string action_group { get { return "EXTRACT_MESSAGE_2"; } } + public override string[] after_actions { get { return after_actions_const; } } + + public override async bool run(XmppStream stream, MessageStanza message) { + string? oob_url = OutOfBandData.get_url_from_message(message); + if (oob_url != null && oob_url == message.body) { + stream.get_module(Module.IDENTITY).received_url(stream, message); + } + return true; + } +} + +public class Flag : XmppStreamFlag { + public static FlagIdentity<Flag> IDENTITY = new FlagIdentity<Flag>(NS_URI, "http_file_upload"); + + public Jid file_store_jid; + public string ns_ver; + public int? max_file_size; + + public Flag(Jid 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; } +} + +} |