Add flickr_proxy_is_successful

2 files changed, 39 insertions, 0 deletions

diff --git a/rest/flickr-proxy.c b/rest/flickr-proxy.c
index cff2588..8172373 100644
--- a/rest/flickr-proxy.c
+++ b/rest/flickr-proxy.c
@@ -30,6 +30,7 @@
  */
 
 #include <config.h>
+#include <stdlib.h>
 #include <string.h>
 #include <rest/rest-proxy.h>
 #include <libsoup/soup.h>
@@ -331,3 +332,38 @@ flickr_proxy_build_login_url (FlickrProxy *proxy, const char *frob)
 
   return s;
 }
+
+/**
+ * flickr_proxy_is_successful:
+ * @root: The root node of a parsed Flickr response
+ * @error: #GError to set if the response was an error
+ *
+ * Examines the Flickr response and if it not a successful reply, set @error and
+ * return FALSE.
+ *
+ * Returns: %TRUE if this response is successful, %FALSE otherwise.
+ */
+gboolean
+flickr_proxy_is_successful (RestXmlNode *root, GError **error)
+{
+  RestXmlNode *node;
+
+  g_return_val_if_fail (root, FALSE);
+
+  if (strcmp (root->name, "rsp") != 0) {
+    g_set_error (error, FLICKR_PROXY_ERROR, 0,
+                 "Unexpected response from Flickr (root node %s)",
+                 root->name);
+    return FALSE;
+  }
+
+  if (strcmp (rest_xml_node_get_attr (root, "stat"), "ok") != 0) {
+    node = rest_xml_node_find (root, "err");
+    g_set_error_literal (error,FLICKR_PROXY_ERROR,
+                         atoi (rest_xml_node_get_attr (node, "code")),
+                         rest_xml_node_get_attr (node, "msg"));
+    return FALSE;
+  }
+
+  return TRUE;
+}
diff --git a/rest/flickr-proxy.h b/rest/flickr-proxy.h
index 7104735..9369434 100644
--- a/rest/flickr-proxy.h
+++ b/rest/flickr-proxy.h
@@ -24,6 +24,7 @@
 #define _FLICKR_PROXY
 
 #include <rest/rest-proxy.h>
+#include <rest/rest-xml-parser.h>
 
 G_BEGIN_DECLS
 
@@ -83,6 +84,8 @@ char * flickr_proxy_sign (FlickrProxy *proxy, GHashTable *params);
 
 char * flickr_proxy_build_login_url (FlickrProxy *proxy, const char *frob);
 
+gboolean flickr_proxy_is_successful (RestXmlNode *root, GError **error);
+
 G_END_DECLS
 
 #endif /* _FLICKR_PROXY */