@@ -0,0 +1,230 @@
+use futures::{future, Future, Sink, Stream};
+use std::env::args;
+use std::fs::{create_dir_all, File};
+use std::io::{self, Write};
+use std::process::exit;
+use std::str::FromStr;
+use tokio::runtime::current_thread::Runtime;
+use tokio_xmpp::{Client, Packet};
+use xmpp_parsers::{
+ avatar::{Data as AvatarData, Metadata as AvatarMetadata},
+ caps::{compute_disco, hash_caps, Caps},
+ disco::{DiscoInfoQuery, DiscoInfoResult, Feature, Identity},
+ hashes::Algo,
+ iq::{Iq, IqType},
+ message::Message,
+ ns,
+ presence::{Presence, Type as PresenceType},
+ pubsub::{
+ event::PubSubEvent,
+ pubsub::{Items, PubSub},
+ NodeName,
+ },
+ stanza_error::{StanzaError, ErrorType, DefinedCondition},
+ Jid, TryFrom,
+};
+
+fn main() {
+ let args: Vec<String> = args().collect();
+ if args.len() != 3 {
+ println!("Usage: {} <jid> <password>", args[0]);
+ exit(1);
+ }
+ let jid = &args[1];
+ let password = &args[2];
+
+ // tokio_core context
+ let mut rt = Runtime::new().unwrap();
+ // Client instance
+ let client = Client::new(jid, password).unwrap();
+
+ // Make the two interfaces for sending and receiving independent
+ // of each other so we can move one into a closure.
+ let (sink, stream) = client.split();
+
+ // Create outgoing pipe
+ let (mut tx, rx) = futures::unsync::mpsc::unbounded();
+ rt.spawn(
+ rx.forward(
+ sink.sink_map_err(|_| panic!("Pipe"))
+ )
+ .map(|(rx, mut sink)| {
+ drop(rx);
+ let _ = sink.close();
+ })
+ .map_err(|e| {
+ panic!("Send error: {:?}", e);
+ })
+ );
+
+ let disco_info = make_disco();
+
+ // Main loop, processes events
+ let mut wait_for_stream_end = false;
+ let done = stream.for_each(move |event| {
+ // Helper function to send an iq error.
+ let mut send_error = |to, id, type_, condition, text: &str| {
+ let error = StanzaError::new(type_, condition, "en", text);
+ let iq = Iq::from_error(id, error)
+ .with_to(to);
+ tx.start_send(Packet::Stanza(iq.into())).unwrap();
+ };
+
+ if wait_for_stream_end {
+ /* Do nothing */
+ } else if event.is_online() {
+ println!("Online!");
+
+ let caps = get_disco_caps(&disco_info, "https://gitlab.com/xmpp-rs/tokio-xmpp");
+ let presence = make_presence(caps);
+ tx.start_send(Packet::Stanza(presence.into())).unwrap();
+ } else if let Some(stanza) = event.into_stanza() {
+ if stanza.is("iq", "jabber:client") {
+ let iq = Iq::try_from(stanza).unwrap();
+ if let IqType::Get(payload) = iq.payload {
+ if payload.is("query", ns::DISCO_INFO) {
+ let query = DiscoInfoQuery::try_from(payload);
+ match query {
+ Ok(query) => {
+ let mut disco = disco_info.clone();
+ disco.node = query.node;
+ let iq = Iq::from_result(iq.id, Some(disco))
+ .with_to(iq.from.unwrap());
+ tx.start_send(Packet::Stanza(iq.into())).unwrap();
+ },
+ Err(err) => {
+ send_error(iq.from.unwrap(), iq.id, ErrorType::Modify, DefinedCondition::BadRequest, &format!("{}", err));
+ },
+ }
+ } else {
+ // We MUST answer unhandled get iqs with a service-unavailable error.
+ send_error(iq.from.unwrap(), iq.id, ErrorType::Cancel, DefinedCondition::ServiceUnavailable, "No handler defined for this kind of iq.");
+ }
+ } else if let IqType::Result(Some(payload)) = iq.payload {
+ if payload.is("pubsub", ns::PUBSUB) {
+ let pubsub = PubSub::try_from(payload).unwrap();
+ let from =
+ iq.from.clone().unwrap_or(Jid::from_str(jid).unwrap());
+ handle_iq_result(pubsub, &from);
+ }
+ } else if let IqType::Set(_) = iq.payload {
+ // We MUST answer unhandled set iqs with a service-unavailable error.
+ send_error(iq.from.unwrap(), iq.id, ErrorType::Cancel, DefinedCondition::ServiceUnavailable, "No handler defined for this kind of iq.");
+ }
+ } else if stanza.is("message", "jabber:client") {
+ let message = Message::try_from(stanza).unwrap();
+ let from = message.from.clone().unwrap();
+ if let Some(body) = message.get_best_body(vec!["en"]) {
+ if body.1 .0 == "die" {
+ println!("Secret die command triggered by {}", from);
+ wait_for_stream_end = true;
+ tx.start_send(Packet::StreamEnd).unwrap();
+ }
+ }
+ for child in message.payloads {
+ if child.is("event", ns::PUBSUB_EVENT) {
+ let event = PubSubEvent::try_from(child).unwrap();
+ if let PubSubEvent::PublishedItems { node, items } = event {
+ if node.0 == ns::AVATAR_METADATA {
+ for item in items {
+ let payload = item.payload.clone().unwrap();
+ if payload.is("metadata", ns::AVATAR_METADATA) {
+ // TODO: do something with these metadata.
+ let _metadata = AvatarMetadata::try_from(payload).unwrap();
+ println!(
+ "[1m{}[0m has published an avatar, downloading...",
+ from
+ );
+ let iq = download_avatar(&from);
+ tx.start_send(Packet::Stanza(iq.into())).unwrap();
+ }
+ }
+ }
+ }
+ }
+ }
+ } else if stanza.is("presence", "jabber:client") {
+ // Nothing to do here.
+ } else {
+ panic!("Unknown stanza: {}", String::from(&stanza));
+ }
+ }
+
+ future::ok(())
+ });
+
+ // Start polling `done`
+ match rt.block_on(done) {
+ Ok(_) => (),
+ Err(e) => {
+ println!("Fatal: {}", e);
+ ()
+ }
+ }
+}
+
+fn make_disco() -> DiscoInfoResult {
+ let identities = vec![Identity::new("client", "bot", "en", "tokio-xmpp")];
+ let features = vec![
+ Feature::new(ns::DISCO_INFO),
+ Feature::new(format!("{}+notify", ns::AVATAR_METADATA)),
+ ];
+ DiscoInfoResult {
+ node: None,
+ identities,
+ features,
+ extensions: vec![],
+ }
+}
+
+fn get_disco_caps(disco: &DiscoInfoResult, node: &str) -> Caps {
+ let caps_data = compute_disco(disco);
+ let hash = hash_caps(&caps_data, Algo::Sha_1).unwrap();
+ Caps::new(node, hash)
+}
+
+// Construct a <presence/>
+fn make_presence(caps: Caps) -> Presence {
+ let mut presence = Presence::new(PresenceType::None)
+ .with_priority(-1);
+ presence.set_status("en", "Downloading avatars.");
+ presence.add_payload(caps);
+ presence
+}
+
+fn download_avatar(from: &Jid) -> Iq {
+ Iq::from_get("coucou", PubSub::Items(Items {
+ max_items: None,
+ node: NodeName(String::from(ns::AVATAR_DATA)),
+ subid: None,
+ items: Vec::new(),
+ }))
+ .with_to(from.clone())
+}
+
+fn handle_iq_result(pubsub: PubSub, from: &Jid) {
+ if let PubSub::Items(items) = pubsub {
+ if items.node.0 == ns::AVATAR_DATA {
+ for item in items.items {
+ if let Some(id) = item.id.clone() {
+ if let Some(payload) = &item.payload {
+ let data = AvatarData::try_from(payload.clone()).unwrap();
+ save_avatar(from, id.0, &data.data).unwrap();
+ }
+ }
+ }
+ }
+ }
+}
+
+fn save_avatar(from: &Jid, id: String, data: &[u8]) -> io::Result<()> {
+ let directory = format!("data/{}", from);
+ let filename = format!("data/{}/{}", from, id);
+ println!(
+ "Saving avatar from [1m{}[0m to [4m{}[0m.",
+ from, filename
+ );
+ create_dir_all(directory)?;
+ let mut file = File::create(filename)?;
+ file.write_all(data)
+}