[gnome-photos] facebook: Don't hard-code the cache file extension

[Debarshi Ray <debarshir src gnome org>]

commit ee3b930cfdf88aa366e3b347c1e16566d46c5f91
Author: Debarshi Ray <debarshir gnome org>
Date:   Mon May 25 16:14:32 2015 +0200

    facebook: Don't hard-code the cache file extension
    
    As a side-effect, the extension for JPEGs is now 'jpg', not 'jpeg'.

 src/photos-facebook-item.c |    9 ++++++++-
 1 files changed, 8 insertions(+), 1 deletions(-)
---
diff --git a/src/photos-facebook-item.c b/src/photos-facebook-item.c
index 3f0b247..3d36bdb 100644
--- a/src/photos-facebook-item.c
+++ b/src/photos-facebook-item.c
@@ -166,7 +166,9 @@ photos_facebook_item_download (PhotosBaseItem *item, GCancellable *cancellable,
   GFile *local_file = NULL;
   GFile *remote_file = NULL;
   const gchar *cache_dir;
+  const gchar *mime_type;
   const gchar *identifier;
+  gchar *extension = NULL;
   gchar *local_dir = NULL;
   gchar *local_filename = NULL;
   gchar *local_path = NULL;
@@ -177,7 +179,11 @@ photos_facebook_item_download (PhotosBaseItem *item, GCancellable *cancellable,
   g_mkdir_with_parents (local_dir, 0700);
 
   identifier = photos_base_item_get_identifier (item) + strlen ("facebook:");
-  local_filename = g_strdup_printf ("%s.jpeg", identifier);
+  mime_type = photos_base_item_get_mime_type (item);
+  extension = photos_utils_get_extension_from_mime_type (mime_type);
+  if (extension == NULL)
+    extension = g_strdup ("tmp");
+  local_filename = g_strdup_printf ("%s.%s", identifier, extension);
   local_path = g_build_filename (local_dir, local_filename, NULL);
   if (g_file_test (local_path, G_FILE_TEST_EXISTS))
     goto end;
@@ -217,6 +223,7 @@ photos_facebook_item_download (PhotosBaseItem *item, GCancellable *cancellable,
   g_free (local_path);
   g_free (local_filename);
   g_free (local_dir);
+  g_free (extension);
   g_clear_object (&local_file);
   g_clear_object (&remote_file);
   g_clear_object (&photo);