[evolution/wip/webkit2] [ECompEditor] Store attachments to calendar's local store on save

[Milan Crha <mcrha src gnome org>]

commit 8a3d63c525a6ff9dba7eacc0d8dd5746756d0364
Author: Milan Crha <mcrha redhat com>
Date:   Tue Nov 10 17:16:38 2015 +0100

    [ECompEditor] Store attachments to calendar's local store on save
    
    It used to do that, before the recent rewrite, and even the right
    place is the backend to play with the attachments, it's required to
    be done till the backends will be capable of it.

 calendar/calendar.error.xml                   |    6 ++
 calendar/gui/e-comp-editor-page-attachments.c |    1 +
 calendar/gui/e-comp-editor.c                  |  103 +++++++++++++++++++++++++
 3 files changed, 110 insertions(+), 0 deletions(-)
---
diff --git a/calendar/calendar.error.xml b/calendar/calendar.error.xml
index f263335..29fd614 100644
--- a/calendar/calendar.error.xml
+++ b/calendar/calendar.error.xml
@@ -305,6 +305,12 @@
     <secondary>{1}</secondary>
   </error>
 
+  <error id="failed-save-attachments" type="error" default="GTK_RESPONSE_YES">
+    <!-- The {0} is a calendar/memo list/task list name, which is useless here -->
+    <_primary>Failed to save attachments</_primary>
+    <secondary>{1}</secondary>
+  </error>
+
   <error id="failed-open-calendar" type="error" default="GTK_RESPONSE_YES">
     <!-- Translators: {0} is the name of the calendar. -->
     <_primary>Failed to open calendar '{0}'</_primary>
diff --git a/calendar/gui/e-comp-editor-page-attachments.c b/calendar/gui/e-comp-editor-page-attachments.c
index 085e13c..f2e860b 100644
--- a/calendar/gui/e-comp-editor-page-attachments.c
+++ b/calendar/gui/e-comp-editor-page-attachments.c
@@ -462,6 +462,7 @@ ecep_attachments_fill_component (ECompEditorPage *page,
                prop = icalproperty_new_attach (attach);
                icalcomponent_add_property (component, prop);
 
+               icalattach_unref (attach);
                g_free (buf);
                g_free (uri);
        }
diff --git a/calendar/gui/e-comp-editor.c b/calendar/gui/e-comp-editor.c
index 0afc487..e37d5b1 100644
--- a/calendar/gui/e-comp-editor.c
+++ b/calendar/gui/e-comp-editor.c
@@ -631,6 +631,103 @@ ece_save_component_done (gpointer ptr)
        save_data_free (sd);
 }
 
+static gboolean
+ece_save_component_attachments_sync (ECalClient *cal_client,
+                                    icalcomponent *component,
+                                    GCancellable *cancellable,
+                                    GError **error)
+{
+       icalproperty *prop;
+       gchar *target_filename_prefix, *filename_prefix, *tmp;
+       gboolean success = TRUE;
+
+       g_return_val_if_fail (E_IS_CAL_CLIENT (cal_client), FALSE);
+       g_return_val_if_fail (component != NULL, FALSE);
+
+       tmp = g_strdup (icalcomponent_get_uid (component));
+       e_filename_make_safe (tmp);
+       filename_prefix = g_strconcat (tmp, "-", NULL);
+       g_free (tmp);
+
+       target_filename_prefix = g_build_filename (
+               e_cal_client_get_local_attachment_store (cal_client),
+               filename_prefix, NULL);
+
+       g_free (filename_prefix);
+
+       for (prop = icalcomponent_get_first_property (component, ICAL_ATTACH_PROPERTY);
+            prop && success;
+            prop = icalcomponent_get_next_property (component, ICAL_ATTACH_PROPERTY)) {
+               icalattach *attach;
+               gchar *uri = NULL;
+
+               attach = icalproperty_get_attach (prop);
+               if (!attach)
+                       continue;
+
+               if (icalattach_get_is_url (attach)) {
+                       const gchar *data;
+                       gsize buf_size;
+
+                       data = icalattach_get_url (attach);
+                       buf_size = strlen (data);
+                       uri = g_malloc0 (buf_size + 1);
+
+                       icalvalue_decode_ical_string (data, uri, buf_size);
+               }
+
+               if (uri) {
+                       if (g_ascii_strncasecmp (uri, "file://", 7) == 0 &&
+                           !g_str_has_prefix (uri + 7, target_filename_prefix)) {
+                               GFile *source, *destination;
+                               gchar *target_filename;
+
+                               target_filename = g_strconcat (target_filename_prefix, strrchr (uri, '/') + 
1, NULL);
+
+                               source = g_file_new_for_uri (uri);
+                               destination = g_file_new_for_path (target_filename);
+
+                               if (source && destination) {
+                                       success = g_file_copy (source, destination, G_FILE_COPY_OVERWRITE, 
cancellable, NULL, NULL, error);
+                                       if (success) {
+                                               g_free (uri);
+                                               uri = g_file_get_uri (destination);
+
+                                               if (uri) {
+                                                       icalattach *new_attach;
+                                                       gsize buf_size;
+                                                       gchar *buf;
+
+                                                       buf_size = 2 * strlen (uri) + 1;
+                                                       buf = g_malloc0 (buf_size);
+
+                                                       icalvalue_encode_ical_string (uri, buf, buf_size);
+                                                       new_attach = icalattach_new_from_url (buf);
+
+                                                       icalproperty_set_attach (prop, new_attach);
+
+                                                       icalattach_unref (new_attach);
+                                                       g_free (buf);
+                                               }
+                                       }
+                               }
+
+                               g_clear_object (&source);
+                               g_clear_object (&destination);
+                               g_free (target_filename);
+                       }
+
+                       g_free (uri);
+               }
+
+               success = success & !g_cancellable_set_error_if_cancelled (cancellable, error);
+       }
+
+       g_free (target_filename_prefix);
+
+       return success;
+}
+
 static void
 ece_gather_tzids_cb (icalparameter *param,
                     gpointer user_data)
@@ -742,6 +839,12 @@ ece_save_component_thread (EAlertSinkThreadJobData *job_data,
                return;
        }
 
+       sd->success = ece_save_component_attachments_sync (sd->target_client, sd->component, cancellable, 
error);
+       if (!sd->success) {
+               e_alert_sink_thread_job_set_alert_ident (job_data, "calendar:failed-save-attachments");
+               return;
+       }
+
        orig_uid = g_strdup (icalcomponent_get_uid (sd->component));
 
        if (cal_comp_is_icalcomp_on_server_sync (sd->component, sd->target_client, cancellable, error)) {