qemu: event: Properly handle spice events

Spice events have mostly similar information present in the event JSON
but they differ in the name of the element containing the port.

The JSON event also provides connection ID which might be useful in the
future.

This patch splits up the event parser code into two functions and the
SPICE reimplements the event parsing with correct names and drops the
VNC only stuff.

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1236585

src/qemu/qemu_monitor_json.c

@@ -617,7 +617,10 @@ VIR_ENUM_IMPL(qemuMonitorGraphicsAddressFamily,
               VIR_DOMAIN_EVENT_GRAPHICS_ADDRESS_LAST,
               "ipv4", "ipv6", "unix");
 
-static void qemuMonitorJSONHandleGraphics(qemuMonitorPtr mon, virJSONValuePtr data, int phase)
+static void
+qemuMonitorJSONHandleGraphicsVNC(qemuMonitorPtr mon,
+                                 virJSONValuePtr data,
+                                 int phase)
 {
     const char *localNode, *localService, *localFamily;
     const char *remoteNode, *remoteService, *remoteFamily;
@@ -690,37 +693,101 @@ static void qemuMonitorJSONHandleGraphics(qemuMonitorPtr mon, virJSONValuePtr da
 
 static void qemuMonitorJSONHandleVNCConnect(qemuMonitorPtr mon, virJSONValuePtr data)
 {
-    qemuMonitorJSONHandleGraphics(mon, data, VIR_DOMAIN_EVENT_GRAPHICS_CONNECT);
+    qemuMonitorJSONHandleGraphicsVNC(mon, data, VIR_DOMAIN_EVENT_GRAPHICS_CONNECT);
 }
 
 
 static void qemuMonitorJSONHandleVNCInitialize(qemuMonitorPtr mon, virJSONValuePtr data)
 {
-    qemuMonitorJSONHandleGraphics(mon, data, VIR_DOMAIN_EVENT_GRAPHICS_INITIALIZE);
+    qemuMonitorJSONHandleGraphicsVNC(mon, data, VIR_DOMAIN_EVENT_GRAPHICS_INITIALIZE);
 }
 
 
 static void qemuMonitorJSONHandleVNCDisconnect(qemuMonitorPtr mon, virJSONValuePtr data)
 {
-    qemuMonitorJSONHandleGraphics(mon, data, VIR_DOMAIN_EVENT_GRAPHICS_DISCONNECT);
+    qemuMonitorJSONHandleGraphicsVNC(mon, data, VIR_DOMAIN_EVENT_GRAPHICS_DISCONNECT);
+}
+
+
+static void
+qemuMonitorJSONHandleGraphicsSPICE(qemuMonitorPtr mon,
+                                   virJSONValuePtr data,
+                                   int phase)
+{
+    const char *lhost, *lport, *lfamily;
+    const char *rhost, *rport, *rfamily;
+    const char *auth = "";
+    int lfamilyID, rfamilyID;
+    virJSONValuePtr client;
+    virJSONValuePtr server;
+
+    if (!(client = virJSONValueObjectGetObject(data, "client")) ||
+        !(server = virJSONValueObjectGetObject(data, "server"))) {
+        VIR_WARN("missing server or client info in SPICE event");
+        return;
+    }
+
+    if (phase == VIR_DOMAIN_EVENT_GRAPHICS_INITIALIZE &&
+        !(auth = virJSONValueObjectGetString(server, "auth"))) {
+        VIR_DEBUG("missing auth scheme in SPICE event");
+        auth = "";
+    }
+
+    if (!(lfamily = virJSONValueObjectGetString(server, "family"))) {
+        VIR_WARN("missing local address family in SPICE event");
+        return;
+    }
+    if (!(lhost = virJSONValueObjectGetString(server, "host"))) {
+        VIR_WARN("missing local hostname in SPICE event");
+        return;
+    }
+    if (!(lport = virJSONValueObjectGetString(server, "port"))) {
+        VIR_WARN("missing local port in SPICE event");
+        return;
+    }
+
+    if (!(rfamily = virJSONValueObjectGetString(client, "family"))) {
+        VIR_WARN("missing remote address family in SPICE event");
+        return;
+    }
+    if (!(rhost = virJSONValueObjectGetString(client, "host"))) {
+        VIR_WARN("missing remote hostname in SPICE event");
+        return;
+    }
+    if (!(rport = virJSONValueObjectGetString(client, "port"))) {
+        VIR_WARN("missing remote service in SPICE event");
+        return;
+    }
+
+    if ((lfamilyID = qemuMonitorGraphicsAddressFamilyTypeFromString(lfamily)) < 0) {
+        VIR_WARN("unknown address family '%s'", lfamily);
+        lfamilyID = VIR_DOMAIN_EVENT_GRAPHICS_ADDRESS_IPV4;
+    }
+    if ((rfamilyID = qemuMonitorGraphicsAddressFamilyTypeFromString(rfamily)) < 0) {
+        VIR_WARN("unknown address family '%s'", rfamily);
+        rfamilyID = VIR_DOMAIN_EVENT_GRAPHICS_ADDRESS_IPV4;
+    }
+
+    qemuMonitorEmitGraphics(mon, phase, lfamilyID, lhost, lport, rfamilyID,
+                            rhost, rport, auth, NULL, NULL);
 }
 
 
 static void qemuMonitorJSONHandleSPICEConnect(qemuMonitorPtr mon, virJSONValuePtr data)
 {
-    qemuMonitorJSONHandleGraphics(mon, data, VIR_DOMAIN_EVENT_GRAPHICS_CONNECT);
+    qemuMonitorJSONHandleGraphicsSPICE(mon, data, VIR_DOMAIN_EVENT_GRAPHICS_CONNECT);
 }
 
 
 static void qemuMonitorJSONHandleSPICEInitialize(qemuMonitorPtr mon, virJSONValuePtr data)
 {
-    qemuMonitorJSONHandleGraphics(mon, data, VIR_DOMAIN_EVENT_GRAPHICS_INITIALIZE);
+    qemuMonitorJSONHandleGraphicsSPICE(mon, data, VIR_DOMAIN_EVENT_GRAPHICS_INITIALIZE);
 }
 
 
 static void qemuMonitorJSONHandleSPICEDisconnect(qemuMonitorPtr mon, virJSONValuePtr data)
 {
-    qemuMonitorJSONHandleGraphics(mon, data, VIR_DOMAIN_EVENT_GRAPHICS_DISCONNECT);
+    qemuMonitorJSONHandleGraphicsSPICE(mon, data, VIR_DOMAIN_EVENT_GRAPHICS_DISCONNECT);
 }
 
 static void