[xmpp] no panic!

Cargo.lock

@@ -1376,6 +1376,7 @@ dependencies = [
  "anyhow",
  "assert_matches",
  "derive_more",
+ "lavina-core",
  "lazy_static",
  "quick-xml",
  "regex",

crates/projection-xmpp/src/lib.rs

@@ -83,7 +83,7 @@ pub async fn launch(
 
     let key = match read_one(&mut SyncBufReader::new(File::open(config.key)?))? {
         Some(PemItem::ECKey(k) | PemItem::PKCS8Key(k) | PemItem::RSAKey(k)) => PrivateKey(k),
-        _ => panic!("no keys in file"),
+        _ => return Err(fail("no keys in file")),
     };
 
     let loaded_config = Arc::new(LoadedConfig {

crates/proto-xmpp/Cargo.toml

@@ -4,6 +4,7 @@ edition = "2021"
 version.workspace = true
 
 [dependencies]
+lavina-core.workspace = true
 quick-xml.workspace = true
 lazy_static.workspace = true
 regex.workspace = true

crates/proto-xmpp/src/stream.rs

@@ -3,6 +3,7 @@ use quick_xml::events::{BytesEnd, BytesStart, BytesText, Event};
 use quick_xml::name::{Namespace, QName, ResolveResult};
 use quick_xml::{NsReader, Writer};
 use tokio::io::{AsyncBufRead, AsyncWrite};
+use lavina_core::prelude::fail;
 
 use super::skip_text;
 
@@ -28,10 +29,10 @@ impl ClientStreamStart {
         if let Event::Start(e) = incoming {
             let (ns, local) = reader.resolve_element(e.name());
             if ns != ResolveResult::Bound(Namespace(XMLNS.as_bytes())) {
-                return Err(panic!());
+                return Err(fail("Invalid namespace for stream element"));
             }
             if local.into_inner() != b"stream" {
-                return Err(panic!());
+                return Err(fail("Invalid local name for stream element"));
             }
             let mut to = None;
             let mut lang = None;
@@ -64,7 +65,7 @@ impl ClientStreamStart {
                 version: version.unwrap(),
             })
         } else {
-            Err(panic!())
+            Err(fail("Incoming message does not belong XML Start Event"))
         }
     }
 }