[thumbnailer] Add support for remote files

Fixes bgo#605218.

diff --git a/thumbnailer/evince-thumbnailer.c b/thumbnailer/evince-thumbnailer.c
index 31486bf63be08af0cd20be49dde04139fcce093f..6ec0f6c4fb28b3589ab4ee82b39c06a02c174482 100644 (file)
--- a/thumbnailer/evince-thumbnailer.c
+++ b/thumbnailer/evince-thumbnailer.c
@@ -53,13 +53,63 @@ struct AsyncData {
        gboolean     success;
 };
 
+static void
+delete_temp_file (GFile *file)
+{
+       ev_tmp_file_unlink (file);
+       g_object_unref (file);
+}
+
 static EvDocument *
-evince_thumbnailer_get_document (const gchar *uri)
+evince_thumbnailer_get_document (GFile *file)
 {
        EvDocument *document = NULL;
+       gchar      *uri;
+       GFile      *tmp_file = NULL;
        GError     *error = NULL;
 
-       document = ev_document_factory_get_document  (uri, &error);
+       if (!g_file_is_native (file)) {
+               gchar *base_name, *template;
+
+               base_name = g_file_get_basename (file);
+               template = g_strdup_printf ("document.XXXXXX-%s", base_name);
+               g_free (base_name);
+
+               tmp_file = ev_mkstemp_file (template, &error);
+               g_free (template);
+               if (!tmp_file) {
+                       g_printerr ("Error loading remote document: %s\n", error->message);
+                       g_error_free (error);
+
+                       return NULL;
+               }
+
+               g_file_copy (file, tmp_file, G_FILE_COPY_OVERWRITE,
+                            NULL, NULL, NULL, &error);
+               if (error) {
+                       g_printerr ("Error loading remote document: %s\n", error->message);
+                       g_error_free (error);
+                       g_object_unref (tmp_file);
+
+                       return NULL;
+               }
+               uri = g_file_get_uri (tmp_file);
+       } else {
+               uri = g_file_get_uri (file);
+       }
+
+       document = ev_document_factory_get_document (uri, &error);
+       if (tmp_file) {
+               if (document) {
+                       g_object_weak_ref (G_OBJECT (document),
+                                          (GWeakNotify)delete_temp_file,
+                                          tmp_file);
+               } else {
+                       ev_tmp_file_unlink (tmp_file);
+                       g_object_unref (tmp_file);
+               }
+       }
+       g_free (uri);
        if (error) {
                if (error->domain == EV_DOCUMENT_ERROR &&
                    error->code == EV_DOCUMENT_ERROR_ENCRYPTED) {
@@ -67,10 +117,11 @@ evince_thumbnailer_get_document (const gchar *uri)
                        g_error_free (error);
                        return NULL;
                }
+               g_printerr ("Error loading document: %s\n", error->message);
                g_error_free (error);
                return NULL;
        }
-       
+
        return document;
 }
 
@@ -169,7 +220,6 @@ main (int argc, char *argv[])
        GOptionContext *context;
        const char     *input;
        const char     *output;
-       char           *uri;
        GFile          *file;
        GError         *error = NULL;
 
@@ -213,11 +263,8 @@ main (int argc, char *argv[])
                 return -1;
 
        file = g_file_new_for_commandline_arg (input);
-       uri = g_file_get_uri (file);
-       document = evince_thumbnailer_get_document (uri);
-
+       document = evince_thumbnailer_get_document (file);
        g_object_unref (file);
-       g_free (uri);
 
        if (!document) {
                ev_shutdown ();