mount-points: make vmethod to make path from uri

Make a vmethod to transform an url into a path. The path is then used to lookup
the factory. This makes it possible to also use other bits of the url, such as
the query parameters, to locate the factory.

gst/rtsp-server/rtsp-client.c

@@ -491,7 +491,8 @@ find_media (GstRTSPClient * client, GstRTSPContext * ctx, gint * matched)
   if (!priv->mount_points)
     goto no_mount_points;
 
-  path = ctx->uri->abspath;
+  if (!(path = gst_rtsp_mount_points_make_path (priv->mount_points, ctx->uri)))
+    goto no_path;
 
   /* find the longest matching factory for the uri first */
   if (!(factory = gst_rtsp_mount_points_match (priv->mount_points,
@@ -552,6 +553,7 @@ find_media (GstRTSPClient * client, GstRTSPContext * ctx, gint * matched)
 
   g_object_unref (factory);
   ctx->factory = NULL;
+  g_free (path);
 
   if (media)
     g_object_ref (media);
@@ -565,20 +567,29 @@ no_mount_points:
     send_generic_response (client, GST_RTSP_STS_NOT_FOUND, ctx);
     return NULL;
   }
+no_path:
+  {
+    GST_ERROR ("client %p: can't find path for url", client);
+    send_generic_response (client, GST_RTSP_STS_NOT_FOUND, ctx);
+    return NULL;
+  }
 no_factory:
   {
     GST_ERROR ("client %p: no factory for uri %s", client, path);
+    g_free (path);
     send_generic_response (client, GST_RTSP_STS_NOT_FOUND, ctx);
     return NULL;
   }
 no_factory_access:
   {
     GST_ERROR ("client %p: not authorized to see factory uri %s", client, path);
+    g_free (path);
     return NULL;
   }
 not_authorized:
   {
     GST_ERROR ("client %p: not authorized for factory uri %s", client, path);
+    g_free (path);
     return NULL;
   }
 no_media:
@@ -587,6 +598,7 @@ no_media:
     send_generic_response (client, GST_RTSP_STS_SERVICE_UNAVAILABLE, ctx);
     g_object_unref (factory);
     ctx->factory = NULL;
+    g_free (path);
     return NULL;
   }
 no_thread:
@@ -597,6 +609,7 @@ no_thread:
     ctx->media = NULL;
     g_object_unref (factory);
     ctx->factory = NULL;
+    g_free (path);
     return NULL;
   }
 no_prepare:
@@ -607,6 +620,7 @@ no_prepare:
     ctx->media = NULL;
     g_object_unref (factory);
     ctx->factory = NULL;
+    g_free (path);
     return NULL;
   }
 }

gst/rtsp-server/rtsp-mount-points.c

@@ -102,6 +102,8 @@ G_DEFINE_TYPE (GstRTSPMountPoints, gst_rtsp_mount_points, G_TYPE_OBJECT);
 GST_DEBUG_CATEGORY_STATIC (rtsp_media_debug);
 #define GST_CAT_DEFAULT rtsp_media_debug
 
+static gchar *default_make_path (GstRTSPMountPoints * mounts,
+    const GstRTSPUrl * url);
 static void gst_rtsp_mount_points_finalize (GObject * obj);
 
 static void
@@ -115,6 +117,8 @@ gst_rtsp_mount_points_class_init (GstRTSPMountPointsClass * klass)
 
   gobject_class->finalize = gst_rtsp_mount_points_finalize;
 
+  klass->make_path = default_make_path;
+
   GST_DEBUG_CATEGORY_INIT (rtsp_media_debug, "rtspmountpoints", 0,
       "GstRTSPMountPoints");
 }
@@ -164,6 +168,41 @@ gst_rtsp_mount_points_new (void)
   return result;
 }
 
+static gchar *
+default_make_path (GstRTSPMountPoints * mounts, const GstRTSPUrl * url)
+{
+  return g_strdup (url->abspath);
+}
+
+/**
+ * gst_rtsp_mount_points_make_path:
+ * @mounts: a #GstRTSPMountPoints
+ * @url: a #GstRTSPUrl
+ *
+ * Make a path string from @url.
+ *
+ * Returns: a path string for @url, g_free() after usage.
+ */
+gchar *
+gst_rtsp_mount_points_make_path (GstRTSPMountPoints * mounts,
+    const GstRTSPUrl * url)
+{
+  GstRTSPMountPointsClass *klass;
+  gchar *result;
+
+  g_return_val_if_fail (GST_IS_RTSP_MOUNT_POINTS (mounts), NULL);
+  g_return_val_if_fail (url != NULL, NULL);
+
+  klass = GST_RTSP_MOUNT_POINTS_GET_CLASS (mounts);
+
+  if (klass->make_path)
+    result = klass->make_path (mounts, url);
+  else
+    result = NULL;
+
+  return result;
+}
+
 static gboolean
 has_prefix (DataItem * str, DataItem * prefix)
 {

gst/rtsp-server/rtsp-mount-points.h

@@ -53,11 +53,15 @@ struct _GstRTSPMountPoints {
 
 /**
  * GstRTSPMountPointsClass:
+ * @make_path: make a path from the given url.
  *
  * The class for the media mounts object.
  */
 struct _GstRTSPMountPointsClass {
   GObjectClass  parent_class;
+
+  gchar * (*make_path) (GstRTSPMountPoints *mounts,
+                        const GstRTSPUrl *url);
 };
 
 GType                 gst_rtsp_mount_points_get_type       (void);
@@ -65,6 +69,8 @@ GType                 gst_rtsp_mount_points_get_type       (void);
 /* creating a mount points */
 GstRTSPMountPoints *  gst_rtsp_mount_points_new            (void);
 
+gchar *               gst_rtsp_mount_points_make_path      (GstRTSPMountPoints *mounts,
+                                                            const GstRTSPUrl * url);
 /* finding a media factory */
 GstRTSPMediaFactory * gst_rtsp_mount_points_match          (GstRTSPMountPoints *mounts,
                                                             const gchar *path,