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-rw-r--r--src/client/encrypted.rs189
1 files changed, 179 insertions, 10 deletions
diff --git a/src/client/encrypted.rs b/src/client/encrypted.rs
index 08439b2..a4bf0d1 100644
--- a/src/client/encrypted.rs
+++ b/src/client/encrypted.rs
@@ -1,24 +1,35 @@
+use std::str;
+
use quick_xml::{
+ de::Deserializer,
events::{BytesDecl, BytesStart, Event},
+ name::QName,
+ se::Serializer,
Reader, Writer,
};
-use tokio::io::{BufReader, ReadHalf, WriteHalf};
+use rsasl::prelude::{Mechname, SASLClient};
+use serde::{Deserialize, Serialize};
+use tokio::io::{AsyncWriteExt, BufReader, ReadHalf, WriteHalf};
use tokio::net::TcpStream;
use tokio_native_tls::TlsStream;
+use crate::stanza::{
+ sasl::{Auth, Challenge, Mechanisms},
+ stream::{StreamFeature, StreamFeatures},
+};
use crate::Jabber;
use crate::Result;
pub struct JabberClient<'j> {
reader: Reader<BufReader<ReadHalf<TlsStream<TcpStream>>>>,
- writer: Writer<WriteHalf<TlsStream<TcpStream>>>,
+ writer: WriteHalf<TlsStream<TcpStream>>,
jabber: &'j mut Jabber<'j>,
}
impl<'j> JabberClient<'j> {
pub fn new(
reader: Reader<BufReader<ReadHalf<TlsStream<TcpStream>>>>,
- writer: Writer<WriteHalf<TlsStream<TcpStream>>>,
+ writer: WriteHalf<TlsStream<TcpStream>>,
jabber: &'j mut Jabber<'j>,
) -> Self {
Self {
@@ -37,13 +48,9 @@ impl<'j> JabberClient<'j> {
stream_element.push_attribute(("xml:lang", "en"));
stream_element.push_attribute(("xmlns", "jabber:client"));
stream_element.push_attribute(("xmlns:stream", "http://etherx.jabber.org/streams"));
- self.writer
- .write_event_async(Event::Decl(declaration))
- .await;
- self.writer
- .write_event_async(Event::Start(stream_element))
- .await
- .unwrap();
+ let mut writer = Writer::new(&mut self.writer);
+ writer.write_event_async(Event::Decl(declaration)).await;
+ writer.write_event_async(Event::Start(stream_element)).await;
let mut buf = Vec::new();
loop {
match self.reader.read_event_into_async(&mut buf).await.unwrap() {
@@ -56,4 +63,166 @@ impl<'j> JabberClient<'j> {
}
Ok(())
}
+
+ pub async fn get_node<'a>(&mut self) -> Result<String> {
+ let mut buf = Vec::new();
+ let mut txt = Vec::new();
+ let mut qname_set = false;
+ let mut qname: Option<Vec<u8>> = None;
+ loop {
+ match self.reader.read_event_into_async(&mut buf).await? {
+ Event::Start(e) => {
+ if !qname_set {
+ qname = Some(e.name().into_inner().to_owned());
+ qname_set = true;
+ }
+ txt.push(b'<');
+ txt = txt
+ .into_iter()
+ .chain(buf.to_owned())
+ .chain(vec![b'>'])
+ .collect();
+ }
+ Event::End(e) => {
+ let mut end = false;
+ if e.name() == QName(qname.as_deref().unwrap()) {
+ end = true;
+ }
+ txt.push(b'<');
+ txt = txt
+ .into_iter()
+ .chain(buf.to_owned())
+ .chain(vec![b'>'])
+ .collect();
+ if end {
+ break;
+ }
+ }
+ Event::Text(_e) => {
+ txt = txt.into_iter().chain(buf.to_owned()).collect();
+ }
+ _ => {
+ txt.push(b'<');
+ txt = txt
+ .into_iter()
+ .chain(buf.to_owned())
+ .chain(vec![b'>'])
+ .collect();
+ }
+ }
+ buf.clear();
+ }
+ println!("{:?}", txt);
+ let decoded = str::from_utf8(&txt)?.to_owned();
+ println!("{:?}", decoded);
+ Ok(decoded)
+ }
+
+ pub async fn get_features(&mut self) -> Result<Vec<StreamFeature>> {
+ let node = self.get_node().await?;
+ let mut deserializer = Deserializer::from_str(&node);
+ let features = StreamFeatures::deserialize(&mut deserializer).unwrap();
+ println!("{:?}", features);
+ Ok(features.features)
+ }
+
+ pub async fn negotiate(&mut self) -> Result<()> {
+ loop {
+ println!("loop");
+ let features = &self.get_features().await?;
+ println!("{:?}", features);
+ match &features[0] {
+ StreamFeature::Sasl(sasl) => {
+ println!("{:?}", sasl);
+ self.sasl(&sasl).await?;
+ }
+ StreamFeature::Bind => todo!(),
+ x => println!("{:?}", x),
+ }
+ }
+ }
+
+ pub async fn sasl(&mut self, mechanisms: &Mechanisms) -> Result<()> {
+ println!("{:?}", mechanisms);
+ let sasl = SASLClient::new(self.jabber.auth.clone());
+ let mut offered_mechs: Vec<&Mechname> = Vec::new();
+ for mechanism in &mechanisms.mechanisms {
+ offered_mechs.push(Mechname::parse(&mechanism.mechanism.as_bytes())?)
+ }
+ println!("{:?}", offered_mechs);
+ let mut session = sasl.start_suggested(&offered_mechs)?;
+ let selected_mechanism = session.get_mechname().as_str().to_owned();
+ println!("selected mech: {:?}", selected_mechanism);
+ let mut data: Option<Vec<u8>> = None;
+ if !session.are_we_first() {
+ // if not first mention the mechanism then get challenge data
+ // mention mechanism
+ let auth = Auth {
+ ns: "urn:ietf:params:xml:ns:xmpp-sasl".to_owned(),
+ mechanism: selected_mechanism.clone(),
+ sasl_data: Some("=".to_owned()),
+ };
+ let mut buffer = String::new();
+ let ser = Serializer::new(&mut buffer);
+ auth.serialize(ser).unwrap();
+ self.writer.write_all(buffer.as_bytes());
+ // get challenge data
+ let node = self.get_node().await?;
+ let mut deserializer = Deserializer::from_str(&node);
+ let challenge = Challenge::deserialize(&mut deserializer).unwrap();
+ println!("challenge: {:?}", challenge);
+ data = Some(challenge.sasl_data.as_bytes().to_owned());
+ println!("we didn't go first");
+ } else {
+ // if first, mention mechanism and send data
+ let mut sasl_data = Vec::new();
+ session.step64(None, &mut sasl_data).unwrap();
+ let auth = Auth {
+ ns: "urn:ietf:params:xml:ns:xmpp-sasl".to_owned(),
+ mechanism: selected_mechanism.clone(),
+ sasl_data: Some(str::from_utf8(&sasl_data).unwrap().to_owned()),
+ };
+ let mut buffer = String::new();
+ let ser = Serializer::new(&mut buffer);
+ auth.serialize(ser).unwrap();
+ println!("node: {:?}", buffer);
+ self.writer.write_all(buffer.as_bytes()).await;
+ println!("we went first");
+ // get challenge data
+ // TODO: check if needed
+ // let node = self.get_node().await?;
+ // println!("node: {:?}", node);
+ // let mut deserializer = Deserializer::from_str(&node);
+ // let challenge = Challenge::deserialize(&mut deserializer).unwrap();
+ // println!("challenge: {:?}", challenge);
+ // data = Some(challenge.sasl_data.as_bytes().to_owned());
+ }
+
+ // stepping the authentication exchange to completion
+ let mut sasl_data = Vec::new();
+ while {
+ // decide if need to send more data over
+ let state = session
+ .step64(data.as_deref(), &mut sasl_data)
+ .expect("step errored!");
+ state.is_running()
+ } {
+ // While we aren't finished, receive more data from the other party
+ let auth = Auth {
+ ns: "urn:ietf:params:xml:ns:xmpp-sasl".to_owned(),
+ mechanism: selected_mechanism.clone(),
+ sasl_data: Some(str::from_utf8(&sasl_data).unwrap().to_owned()),
+ };
+ let mut buffer = String::new();
+ let ser = Serializer::new(&mut buffer);
+ auth.serialize(ser).unwrap();
+ self.writer.write_all(buffer.as_bytes());
+ let node = self.get_node().await?;
+ let mut deserializer = Deserializer::from_str(&node);
+ let challenge = Challenge::deserialize(&mut deserializer).unwrap();
+ data = Some(challenge.sasl_data.as_bytes().to_owned());
+ }
+ self.start_stream().await?;
+ Ok(())
+ }
}
generated by cgit (git 2.34.1) at 2024-11-21 14:19:58 +0000