025e09aca6
This way, we don't end up with breakage if rustls is built with more than one provider enabled. This can (and does) happen if a transitive dependency (such as reqwest *hinthint*) depends on a specific, non-default rustls backend.
247 lines
9.5 KiB
Rust
247 lines
9.5 KiB
Rust
use futures::stream::StreamExt;
|
||
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_xmpp::{rustls, Client, Stanza};
|
||
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},
|
||
jid::{BareJid, Jid},
|
||
ns,
|
||
presence::{Presence, Type as PresenceType},
|
||
pubsub::{
|
||
self,
|
||
pubsub::{Items, PubSub},
|
||
NodeName,
|
||
},
|
||
stanza_error::{DefinedCondition, ErrorType, StanzaError},
|
||
};
|
||
|
||
#[tokio::main]
|
||
async fn main() {
|
||
env_logger::init();
|
||
|
||
#[cfg(feature = "tls-rust")]
|
||
rustls::crypto::aws_lc_rs::default_provider()
|
||
.install_default()
|
||
.expect("failed to install rustls crypto provider");
|
||
|
||
let args: Vec<String> = args().collect();
|
||
if args.len() != 3 {
|
||
println!("Usage: {} <jid> <password>", args[0]);
|
||
exit(1);
|
||
}
|
||
let jid = BareJid::from_str(&args[1]).expect(&format!("Invalid JID: {}", &args[1]));
|
||
let password = args[2].clone();
|
||
|
||
// Client instance
|
||
let mut client = Client::new(jid.clone(), password);
|
||
|
||
let disco_info = make_disco();
|
||
|
||
// Main loop, processes events
|
||
while let Some(event) = client.next().await {
|
||
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);
|
||
client.send_stanza(presence.into()).await.unwrap();
|
||
} else if let Some(stanza) = event.into_stanza() {
|
||
match stanza {
|
||
Stanza::Iq(iq) => {
|
||
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());
|
||
client.send_stanza(iq.into()).await.unwrap();
|
||
}
|
||
Err(err) => {
|
||
client
|
||
.send_stanza(
|
||
make_error(
|
||
iq.from.unwrap(),
|
||
iq.id,
|
||
ErrorType::Modify,
|
||
DefinedCondition::BadRequest,
|
||
&format!("{}", err),
|
||
)
|
||
.into(),
|
||
)
|
||
.await
|
||
.unwrap();
|
||
}
|
||
}
|
||
} else {
|
||
// We MUST answer unhandled get iqs with a service-unavailable error.
|
||
client
|
||
.send_stanza(
|
||
make_error(
|
||
iq.from.unwrap(),
|
||
iq.id,
|
||
ErrorType::Cancel,
|
||
DefinedCondition::ServiceUnavailable,
|
||
"No handler defined for this kind of iq.",
|
||
)
|
||
.into(),
|
||
)
|
||
.await
|
||
.unwrap();
|
||
}
|
||
} 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.clone().into());
|
||
handle_iq_result(pubsub, &from);
|
||
}
|
||
} else if let IqType::Set(_) = iq.payload {
|
||
// We MUST answer unhandled set iqs with a service-unavailable error.
|
||
client
|
||
.send_stanza(
|
||
make_error(
|
||
iq.from.unwrap(),
|
||
iq.id,
|
||
ErrorType::Cancel,
|
||
DefinedCondition::ServiceUnavailable,
|
||
"No handler defined for this kind of iq.",
|
||
)
|
||
.into(),
|
||
)
|
||
.await
|
||
.unwrap();
|
||
}
|
||
}
|
||
Stanza::Message(message) => {
|
||
let from = message.from.clone().unwrap();
|
||
if let Some(body) = message.get_best_body(vec!["en"]) {
|
||
if body.0 == "die" {
|
||
println!("Secret die command triggered by {}", from);
|
||
break;
|
||
}
|
||
}
|
||
for child in message.payloads {
|
||
if child.is("event", ns::PUBSUB_EVENT) {
|
||
let event = pubsub::Event::try_from(child).unwrap();
|
||
if let pubsub::event::Payload::Items {
|
||
node,
|
||
published,
|
||
retracted: _,
|
||
} = event.payload
|
||
{
|
||
if node.0 == ns::AVATAR_METADATA {
|
||
for item in published.into_iter() {
|
||
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.clone()
|
||
);
|
||
let iq = download_avatar(from.clone());
|
||
client.send_stanza(iq.into()).await.unwrap();
|
||
}
|
||
}
|
||
}
|
||
}
|
||
}
|
||
}
|
||
}
|
||
// Nothing to do here.
|
||
Stanza::Presence(_) => (),
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
fn make_error(
|
||
to: Jid,
|
||
id: String,
|
||
type_: ErrorType,
|
||
condition: DefinedCondition,
|
||
text: &str,
|
||
) -> Iq {
|
||
let error = StanzaError::new(type_, condition, "en", text);
|
||
Iq::from_error(id, error).with_to(to)
|
||
}
|
||
|
||
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)
|
||
}
|
||
|
||
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 {
|
||
match (item.id.clone(), item.payload.clone()) {
|
||
(Some(id), Some(payload)) => {
|
||
let data = AvatarData::try_from(payload).unwrap();
|
||
save_avatar(from, id.0, &data.data).unwrap();
|
||
}
|
||
_ => {}
|
||
}
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
// TODO: may use tokio?
|
||
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)
|
||
}
|