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using Gee;
namespace Xmpp.StreamError {
private const string NS_URI = "jabber:client";
private const string NS_ERROR = "urn:ietf:params:xml:ns:xmpp-streams";
public class Module : XmppStreamModule {
public static ModuleIdentity<Module> IDENTITY = new ModuleIdentity<Module>(NS_URI, "stream_error_module");
public override void attach(XmppStream stream) {
stream.received_nonza.connect(on_received_nonstanza);
}
public override void detach(XmppStream stream) {
stream.received_nonza.disconnect(on_received_nonstanza);
}
public static void require(XmppStream stream) {
if (stream.get_module(IDENTITY) == null) stream.add_module(new Module());
}
public override string get_ns() { return NS_URI; }
public override string get_id() { return IDENTITY.id; }
private void on_received_nonstanza(XmppStream stream, StanzaNode node) {
if (node.name == "error" && node.ns_uri == "http://etherx.jabber.org/streams") {
stream.add_flag(generate_error_flag(node));
}
}
private Flag generate_error_flag(StanzaNode node) {
string? subnode_name = null;
Gee.List<StanzaNode> subnodes = node.sub_nodes;
foreach (StanzaNode subnode in subnodes) { // TODO get subnode by ns
if (subnode.ns_uri == "urn:ietf:params:xml:ns:xmpp-streams" && subnode.name != "text") {
subnode_name = subnode.name;
}
}
Flag flag = new StreamError.Flag();
flag.error_type = subnode_name;
switch (subnode_name) {
case "bad-format":
case "conflict":
case "connection-timeout":
case "bad-namespace-prefix":
flag.reconnection_recomendation = StreamError.Flag.Reconnect.NOW;
break;
case "host-gone":
case "host-unknown":
flag.reconnection_recomendation = StreamError.Flag.Reconnect.LATER;
break;
case "improper-addressing":
case "internal-server-error":
case "invalid-from":
case "invalid-namespace":
case "invalid-xml":
case "not-authorized":
case "not-well-formed":
case "policy-violation":
case "remote-connection-failed":
case "reset":
flag.reconnection_recomendation = StreamError.Flag.Reconnect.NOW;
break;
case "resource-constraint":
flag.reconnection_recomendation = StreamError.Flag.Reconnect.LATER;
break;
case "restricted-xml":
flag.reconnection_recomendation = StreamError.Flag.Reconnect.NOW;
break;
case "see-other-host":
case "system-shutdown":
flag.reconnection_recomendation = StreamError.Flag.Reconnect.LATER;
break;
case "undefined-condition":
case "unsupported-encoding":
case "unsupported-feature":
case "unsupported-stanza-type":
case "unsupported-version":
flag.reconnection_recomendation = StreamError.Flag.Reconnect.NOW;
break;
}
if (subnode_name == "conflict") flag.resource_rejected = true;
return flag;
}
}
public class Flag : XmppStreamFlag {
public static FlagIdentity<Flag> IDENTITY = new FlagIdentity<Flag>(NS_URI, "stream_error");
public enum Reconnect {
UNKNOWN,
NOW,
LATER,
NEVER
}
public string? error_type;
public Reconnect reconnection_recomendation = Reconnect.UNKNOWN;
public bool resource_rejected = false;
public override string get_ns() { return NS_URI; }
public override string get_id() { return IDENTITY.id; }
}
}
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