TpProtocol: add high-level API for the Addressing interface

Bug: https://bugs.freedesktop.org/show_bug.cgi?id=71048
Reviewed-by: Guillaume Desmottes <guillaume.desmottes@collabora.co.uk>

1 files changed, 68 insertions, 0 deletions

diff --git a/examples/cm/echo-message-parts/protocol.c b/examples/cm/echo-message-parts/protocol.c
index ae8894a26..7917ba000 100644
--- a/examples/cm/echo-message-parts/protocol.c
+++ b/examples/cm/echo-message-parts/protocol.c
@@ -226,6 +226,72 @@ dup_supported_vcard_fields (TpBaseProtocol *self)
   return g_strdupv ((GStrv) addressing_vcard_fields);
 }
 
+static gchar *
+normalize_vcard_address (TpBaseProtocol *self,
+    const gchar *vcard_field,
+    const gchar *vcard_address,
+    GError **error)
+{
+  if (g_ascii_strcasecmp (vcard_field, "x-jabber") == 0)
+    {
+      /* This is not really how you normalize a JID but it's good enough
+       * for an example. In real life you'd do syntax-checking beyond
+       * "is it empty?", stringprep, and so on. Here, we just assume
+       * non-empty means valid, and lower-case means normalized. */
+
+      if (tp_str_empty (vcard_address))
+        {
+          g_set_error (error, TP_ERROR, TP_ERROR_INVALID_ARGUMENT,
+              "The empty string is not a valid JID");
+          return NULL;
+        }
+
+      return g_utf8_strdown (vcard_address, -1);
+    }
+  else
+    {
+      g_set_error (error, TP_ERROR, TP_ERROR_NOT_IMPLEMENTED,
+          "Don't know how to normalize vCard field: %s", vcard_field);
+      return NULL;
+    }
+}
+
+static gchar *
+normalize_contact_uri (TpBaseProtocol *self,
+    const gchar *uri,
+    GError **error)
+{
+  gchar *scheme = g_uri_parse_scheme (uri);
+
+  if (g_ascii_strcasecmp (scheme, "xmpp") == 0)
+    {
+      gchar *ret = NULL;
+      gchar *id;
+
+      id = normalize_vcard_address (self, "x-jabber", uri + 5, error);
+
+      if (id != NULL)
+        ret = g_strdup_printf ("%s:%s", scheme, id);
+
+      g_free (scheme);
+      g_free (id);
+      return ret;
+    }
+  else if (scheme == NULL)
+    {
+      g_set_error (error, TP_ERROR, TP_ERROR_INVALID_ARGUMENT,
+          "Not a valid URI: %s", uri);
+      return NULL;
+    }
+  else
+    {
+      g_set_error (error, TP_ERROR, TP_ERROR_NOT_IMPLEMENTED,
+          "Don't know how to normalize URIs of that scheme: %s", scheme);
+      g_free (scheme);
+      return NULL;
+    }
+}
+
 static void
 example_echo_2_protocol_class_init (
     ExampleEcho2ProtocolClass *klass)
@@ -248,4 +314,6 @@ addressing_iface_init (TpProtocolAddressingInterface *iface)
 {
   iface->dup_supported_vcard_fields = dup_supported_vcard_fields;
   iface->dup_supported_uri_schemes = dup_supported_uri_schemes;
+  iface->normalize_vcard_address = normalize_vcard_address;
+  iface->normalize_contact_uri = normalize_contact_uri;
 }