[libgdata/wip/rishi/drive: 3/4] documents: Port gdata_documents_service_copy_document to Drive v2

[Debarshi Ray <debarshir src gnome org>]

commit a03994fa70e202b6f7e4e67f076a6717a4d593ca
Author: Debarshi Ray <debarshir gnome org>
Date:   Fri Sep 4 15:12:04 2015 +0200

    documents: Port gdata_documents_service_copy_document to Drive v2
    
    Now it is a wrapper around gdata_documents_service_add_entry_to_folder,
    so the document can even be an arbitrary file.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=684920

 gdata/services/documents/gdata-documents-service.c |   63 ++++++++++---------
 1 files changed, 33 insertions(+), 30 deletions(-)
---
diff --git a/gdata/services/documents/gdata-documents-service.c 
b/gdata/services/documents/gdata-documents-service.c
index ee7a891..e172147 100644
--- a/gdata/services/documents/gdata-documents-service.c
+++ b/gdata/services/documents/gdata-documents-service.c
@@ -958,8 +958,7 @@ gdata_documents_service_finish_upload (GDataDocumentsService *self, GDataUploadS
  * @cancellable: (allow-none): optional #GCancellable object, or %NULL
  * @error: a #GError, or %NULL
  *
- * Copy the given @document, producing a duplicate document in the same folder and returning its 
#GDataDocumentsDocument. Note that @document
- * may only be a document, not an arbitrary file; i.e. @document must be an instance of a subclass of 
#GDataDocumentsDocument.
+ * Copy the given @document, producing a duplicate document in the same folder and returning its 
#GDataDocumentsDocument.
  *
  * Errors from #GDataServiceError can be returned for exceptional conditions, as determined by the server.
  *
@@ -971,9 +970,10 @@ GDataDocumentsDocument *
 gdata_documents_service_copy_document (GDataDocumentsService *self, GDataDocumentsDocument *document, 
GCancellable *cancellable, GError **error)
 {
        GDataDocumentsDocument *new_document;
-       gchar *upload_data;
-       SoupMessage *message;
-       guint status;
+       GDataEntry *parent = NULL;
+       GList *i;
+       GList *parent_folders_list;
+       const gchar *parent_id = NULL;
 
        g_return_val_if_fail (GDATA_IS_DOCUMENTS_SERVICE (self), NULL);
        g_return_val_if_fail (GDATA_IS_DOCUMENTS_DOCUMENT (document), NULL);
@@ -987,35 +987,38 @@ gdata_documents_service_copy_document (GDataDocumentsService *self, GDataDocumen
                return NULL;
        }
 
-       message = _gdata_service_build_message (GDATA_SERVICE (self), get_documents_authorization_domain (), 
SOUP_METHOD_POST,
-                                               "https://docs.google.com/feeds/default/private/full";, NULL, 
TRUE);
-
-       /* Append the data */
-       upload_data = gdata_parsable_get_xml (GDATA_PARSABLE (document));
-       soup_message_set_request (message, "application/atom+xml", SOUP_MEMORY_TAKE, upload_data, strlen 
(upload_data));
-
-       /* Send the message */
-       status = _gdata_service_send_message (GDATA_SERVICE (self), message, cancellable, error);
+       parent_folders_list = gdata_entry_look_up_links (GDATA_ENTRY (document), GDATA_LINK_PARENT);
+       for (i = parent_folders_list; i != NULL; i = i->next) {
+               GDataLink *_link = GDATA_LINK (i->data);
+               const gchar *uri;
+               gsize uri_prefix_len;
+
+               /* HACK: Extract the ID from the GDataLink:uri by removing the prefix. Ignore links which
+                * don't have the prefix. */
+               uri = gdata_link_get_uri (_link);
+               uri_prefix_len = strlen (GDATA_DOCUMENTS_URI_PREFIX);
+               if (g_str_has_prefix (uri, GDATA_DOCUMENTS_URI_PREFIX)) {
+                       const gchar *id;
+
+                       id = uri + uri_prefix_len;
+                       if (id[0] != '\0') {
+                               parent_id = id;
+                               break;
+                       }
+               }
+       }
 
-       if (status == SOUP_STATUS_NONE || status == SOUP_STATUS_CANCELLED) {
-               /* Redirect error or cancelled */
-               g_object_unref (message);
-               return NULL;
-       } else if (status != SOUP_STATUS_CREATED) {
-               /* Error */
-               GDataServiceClass *klass = GDATA_SERVICE_GET_CLASS (self);
-               g_assert (klass->parse_error_response != NULL);
-               klass->parse_error_response (GDATA_SERVICE (self), GDATA_OPERATION_UPDATE, status, 
message->reason_phrase,
-                                            message->response_body->data, message->response_body->length, 
error);
-               g_object_unref (message);
+       if (parent_id == NULL) {
+               g_set_error_literal (error, GDATA_SERVICE_ERROR, GDATA_SERVICE_ERROR_NOT_FOUND, _("Parent 
folder not found"));
                return NULL;
        }
 
-       /* Parse the XML; and update the entry */
-       g_assert (message->response_body->data != NULL);
-       new_document = GDATA_DOCUMENTS_DOCUMENT (gdata_parsable_new_from_xml (G_OBJECT_TYPE (document), 
message->response_body->data,
-                                                                             message->response_body->length, 
error));
-       g_object_unref (message);
+       parent = gdata_service_query_single_entry (GDATA_SERVICE (self), get_documents_authorization_domain 
(), parent_id, NULL, GDATA_TYPE_DOCUMENTS_FOLDER, cancellable, error);
+       if (parent == NULL)
+               return NULL;
+
+       new_document = GDATA_DOCUMENTS_DOCUMENT (gdata_documents_service_add_entry_to_folder (self, 
GDATA_DOCUMENTS_ENTRY (document), GDATA_DOCUMENTS_FOLDER (parent), cancellable, error));
+       g_object_unref (parent);
 
        return new_document;
 }