1 files changed, 67 insertions, 0 deletions
diff --git a/src/librygel-server/rygel-http-seek.vala b/src/librygel-server/rygel-http-seek.vala
new file mode 100644
index 00000000..a8577349
--- /dev/null
+++ b/src/librygel-server/rygel-http-seek.vala
@@ -0,0 +1,67 @@
+/*
+ * Copyright (C) 2008-2009 Nokia Corporation.
+ *
+ * Author: Zeeshan Ali (Khattak) <zeeshanak@gnome.org>
+ *                               <zeeshan.ali@nokia.com>
+ *
+ * This file is part of Rygel.
+ *
+ * Rygel is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * Rygel is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+internal errordomain Rygel.HTTPSeekError {
+    INVALID_RANGE = Soup.KnownStatusCode.BAD_REQUEST,
+    OUT_OF_RANGE = Soup.KnownStatusCode.REQUESTED_RANGE_NOT_SATISFIABLE,
+}
+
+internal abstract class Rygel.HTTPSeek : GLib.Object {
+    public Soup.Message msg { get; private set; }
+
+    // These are either number of bytes or microseconds
+    public int64 start { get; private set; }
+    public int64 stop { get; private set; }
+    public int64 step { get; private set; }
+    public int64 length { get; private set; }
+    public int64 total_length { get; private set; }
+
+    public HTTPSeek (Soup.Message msg,
+                     int64        start,
+                     int64        stop,
+                     int64        step,
+                     int64        total_length) throws HTTPSeekError {
+        this.msg = msg;
+        this.start = start;
+        this.stop = stop;
+        this.length = length;
+        this.total_length = total_length;
+
+        if (start < 0 || start >= total_length) {
+            throw new HTTPSeekError.OUT_OF_RANGE (_("Out Of Range Start '%ld'"),
+                                                  start);
+        }
+        if (stop < 0 || stop >= total_length) {
+            throw new HTTPSeekError.OUT_OF_RANGE (_("Out Of Range Stop '%ld'"),
+                                                  stop);
+        }
+
+        if (length > 0) {
+            this.stop = stop.clamp (start + 1, length - 1);
+        }
+
+        this.length = stop + step - start;
+    }
+
+    public abstract void add_response_headers ();
+}