glib/demo/attachments.c | 101 ++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 101 insertions(+)
New commits:
commit 9e563d6d877624b1caf82ac30c5ae30a1eb48f21
Author: Carlos Garcia Campos <[EMAIL PROTECTED]>
Date: Thu Aug 21 20:12:33 2008 +0200
[glib-demo] Add checksum validation to attachments demo
diff --git a/glib/demo/attachments.c b/glib/demo/attachments.c
index c31a4e0..6c7b919 100644
--- a/glib/demo/attachments.c
+++ b/glib/demo/attachments.c
@@ -180,6 +180,97 @@ pgd_attachments_save_button_clicked (GtkButton *button,
}
+#if GLIB_CHECK_VERSION(2, 16, 0)
+static gboolean
+attachment_save_callback (const gchar *buf,
+ gsize count,
+ gpointer data,
+ GError **error)
+{
+ GChecksum *cs = (GChecksum *)data;
+
+ g_checksum_update (cs, buf, count);
+}
+
+static void
+message_dialog_run (GtkWindow *parent,
+ const gchar *message)
+{
+ GtkWidget *dialog;
+
+ dialog = gtk_message_dialog_new (parent,
+ GTK_DIALOG_DESTROY_WITH_PARENT,
+ GTK_MESSAGE_INFO,
+ GTK_BUTTONS_CLOSE,
+ message);
+ gtk_dialog_run (GTK_DIALOG (dialog));
+ gtk_widget_destroy (dialog);
+}
+
+static void
+pgd_attachments_validate_button_clicked (GtkButton *button,
+ GtkTreeView *treeview)
+{
+ GtkTreeSelection *selection;
+ GtkTreeModel *model;
+ GtkTreeIter iter;
+ GChecksum *cs;
+ guint8 *digest;
+ gsize digest_len;
+ PopplerAttachment *attachment;
+ gboolean valid = TRUE;
+
+ selection = gtk_tree_view_get_selection (treeview);
+ if (!gtk_tree_selection_get_selected (selection, &model, &iter))
+ return;
+
+ gtk_tree_model_get (model, &iter,
+ ATTACHMENTS_ATTACHMENT_COLUMN, &attachment,
+ -1);
+
+ if (!attachment)
+ return;
+
+ if (attachment->checksum->len == 0) {
+ message_dialog_run (GTK_WINDOW (gtk_widget_get_toplevel
(GTK_WIDGET (treeview))),
+ "Impossible to validate attachment:
checksum is not available");
+ g_object_unref (attachment);
+
+ return;
+ }
+
+ cs = g_checksum_new (G_CHECKSUM_MD5);
+ poppler_attachment_save_to_callback (attachment,
attachment_save_callback,
+ (gpointer)cs, NULL);
+ digest_len = g_checksum_type_get_length (G_CHECKSUM_MD5);
+ digest = (guint8 *) g_malloc (digest_len);
+ g_checksum_get_digest (cs, digest, &digest_len);
+ g_checksum_free (cs);
+
+ if (attachment->checksum->len == digest_len) {
+ gint i;
+
+ for (i = 0; i < digest_len; i++) {
+ if (attachment->checksum->str[i] != digest[i]) {
+ valid = FALSE;
+ break;
+ }
+ }
+ }
+
+ if (valid) {
+ message_dialog_run (GTK_WINDOW (gtk_widget_get_toplevel
(GTK_WIDGET (treeview))),
+ "Attacment is valid");
+ } else {
+ message_dialog_run (GTK_WINDOW (gtk_widget_get_toplevel
(GTK_WIDGET (treeview))),
+ "Attacment is not valid: the checksum does
not match");
+ }
+
+ g_free (digest);
+ g_object_unref (attachment);
+}
+#endif
+
GtkWidget *
pgd_attachments_create_widget (PopplerDocument *document)
{
@@ -233,6 +324,16 @@ pgd_attachments_create_widget (PopplerDocument *document)
gtk_box_pack_start (GTK_BOX (hbox), button, FALSE, FALSE, 0);
gtk_widget_show (button);
+
+#if GLIB_CHECK_VERSION(2, 16, 0)
+ button = gtk_button_new_with_label ("Validate");
+ g_signal_connect (G_OBJECT (button), "clicked",
+ G_CALLBACK (pgd_attachments_validate_button_clicked),
+ (gpointer)treeview);
+
+ gtk_box_pack_start (GTK_BOX (hbox), button, FALSE, FALSE, 0);
+ gtk_widget_show (button);
+#endif
gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, TRUE, 6);
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