From 2b8bcebfd95338fbee37fd2df018095e24b55e73 Mon Sep 17 00:00:00 2001
From: Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
Date: Fri, 19 May 2017 02:09:23 +0100
Subject: [PATCH] message, iq, presence: Return an Unknown instead of an error
 when the element is unknown.

---
 src/iq.rs       | 6 +++++-
 src/message.rs  | 6 +++++-
 src/presence.rs | 6 +++++-
 3 files changed, 15 insertions(+), 3 deletions(-)

diff --git a/src/iq.rs b/src/iq.rs
index b6216898..43624750 100644
--- a/src/iq.rs
+++ b/src/iq.rs
@@ -29,6 +29,8 @@ pub enum IqPayload {
     IBB(IBB),
     Jingle(Jingle),
     Ping(Ping),
+
+    Unknown(Element),
 }
 
 impl<'a> TryFrom<&'a Element> for IqPayload {
@@ -50,7 +52,7 @@ impl<'a> TryFrom<&'a Element> for IqPayload {
             // XEP-0199
             ("ping", ns::PING) => IqPayload::Ping(Ping::try_from(elem)?),
 
-            _ => return Err(Error::ParseError("Unknown iq payload."))
+            _ => IqPayload::Unknown(elem.clone()),
         })
     }
 }
@@ -164,6 +166,8 @@ impl<'a> Into<Element> for &'a IqPayload {
             IqPayload::IBB(ref ibb) => ibb.into(),
             IqPayload::Jingle(ref jingle) => jingle.into(),
             IqPayload::Ping(ref ping) => ping.into(),
+
+            IqPayload::Unknown(ref elem) => elem.clone(),
         }
     }
 }
diff --git a/src/message.rs b/src/message.rs
index a900502b..96153cfa 100644
--- a/src/message.rs
+++ b/src/message.rs
@@ -36,6 +36,8 @@ pub enum MessagePayload {
     MessageCorrect(Replace),
     ExplicitMessageEncryption(ExplicitMessageEncryption),
     StanzaId(StanzaId),
+
+    Unknown(Element),
 }
 
 impl<'a> TryFrom<&'a Element> for MessagePayload {
@@ -71,7 +73,7 @@ impl<'a> TryFrom<&'a Element> for MessagePayload {
             // XEP-0380
             ("encryption", ns::EME) => MessagePayload::ExplicitMessageEncryption(ExplicitMessageEncryption::try_from(elem)?),
 
-            _ => return Err(Error::ParseError("Unknown message payload."))
+            _ => MessagePayload::Unknown(elem.clone()),
         })
     }
 }
@@ -87,6 +89,8 @@ impl<'a> Into<Element> for &'a MessagePayload {
             MessagePayload::MessageCorrect(ref replace) => replace.into(),
             MessagePayload::ExplicitMessageEncryption(ref eme) => eme.into(),
             MessagePayload::StanzaId(ref stanza_id) => stanza_id.into(),
+
+            MessagePayload::Unknown(ref elem) => elem.clone(),
         }
     }
 }
diff --git a/src/presence.rs b/src/presence.rs
index 67ca5fa0..7eb53b41 100644
--- a/src/presence.rs
+++ b/src/presence.rs
@@ -51,6 +51,8 @@ pub enum PresencePayload {
     StanzaError(StanzaError),
     Delay(Delay),
     ECaps2(ECaps2),
+
+    Unknown(Element),
 }
 
 impl<'a> TryFrom<&'a Element> for PresencePayload {
@@ -66,7 +68,7 @@ impl<'a> TryFrom<&'a Element> for PresencePayload {
             // XEP-0390
             ("c", ns::ECAPS2) => PresencePayload::ECaps2(ECaps2::try_from(elem)?),
 
-            _ => return Err(Error::ParseError("Unknown presence payload."))
+            _ => PresencePayload::Unknown(elem.clone()),
         })
     }
 }
@@ -77,6 +79,8 @@ impl<'a> Into<Element> for &'a PresencePayload {
             PresencePayload::StanzaError(ref stanza_error) => stanza_error.into(),
             PresencePayload::Delay(ref delay) => delay.into(),
             PresencePayload::ECaps2(ref ecaps2) => ecaps2.into(),
+
+            PresencePayload::Unknown(ref elem) => elem.clone(),
         }
     }
 }