[gnome-boxes] wizard: More thorough validation of local URIs

[Zeeshan Ali Khattak <zeeshanak src gnome org>]

commit c1056e122c16b0f9795d63f2e8bc984d7b67213c
Author: Zeeshan Ali (Khattak) <zeeshanak gnome org>
Date:   Mon Feb 16 17:27:52 2015 +0000

    wizard: More thorough validation of local URIs
    
    Check if the file is of a supported extension and has correct file type.

 src/wizard.vala |   19 +++++++++++++++++++
 1 files changed, 19 insertions(+), 0 deletions(-)
---
diff --git a/src/wizard.vala b/src/wizard.vala
index 64ddf75..cb2c0d9 100644
--- a/src/wizard.vala
+++ b/src/wizard.vala
@@ -279,6 +279,25 @@ private class Boxes.Wizard: Gtk.Stack, Boxes.UI {
         if (path != null && (file.has_uri_scheme ("file") || file.has_uri_scheme ("smb"))) {
             if (!probing)
                 prepare_for_installer (path, progress);
+            else {
+                var supported = false;
+                var extensions = InstalledMedia.supported_extensions;
+                extensions += "iso";
+                foreach (var extension in extensions)
+                    if (path.has_suffix (extension)) {
+                        supported = true;
+
+                        break;
+                    }
+                if (!supported)
+                    throw new Boxes.Error.INVALID (_("Unsupported file"));
+
+                var info = file.query_info (FileAttribute.STANDARD_TYPE, FileQueryInfoFlags.NONE, null);
+                var file_type = info.get_file_type ();
+
+                if (file_type != FileType.REGULAR && file_type != FileType.SYMBOLIC_LINK)
+                    throw new Boxes.Error.INVALID (_("Invalid file"));
+            }
 
             return;
         }