[librest] Ignore '/' at beginning of REST function

[Christophe Fergeau <teuf src gnome org>]

commit d54c36cc22c365bd21936365f7c9410899ad3ec1
Author: Christophe Fergeau <cfergeau redhat com>
Date:   Fri Apr 25 15:33:40 2014 +0200

    Ignore '/' at beginning of REST function
    
    When building the HTTP URL to access for a REST operation,
    RestProxyCall::prepare_message, a '/' at the end of the base URL
    is ignored, but a '/' at the beginning of the REST function is not.
    
    When interacting with the oVirt REST API, I often end up building calls
    with for example 'https://ovirt.example.com' as the base URI, and '/api/vms/'
    as the function, which then leads to an URI with 2 '/':
    'https://ovirt.example.com//api/vms'
    
    https://bugzilla.gnome.org/show_bug.cgi?id=728952

 rest/rest-proxy-call.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)
---
diff --git a/rest/rest-proxy-call.c b/rest/rest-proxy-call.c
index a264f2e..fbf4880 100644
--- a/rest/rest-proxy-call.c
+++ b/rest/rest-proxy-call.c
@@ -748,7 +748,8 @@ prepare_message (RestProxyCall *call, GError **error_out)
   /* FIXME: Perhaps excessive memory duplication */
   if (priv->function)
   {
-    if (g_str_has_suffix (bound_url, "/"))
+    if (g_str_has_suffix (bound_url, "/")
+          || g_str_has_prefix (priv->function, "/"))
     {
       priv->url = g_strdup_printf ("%s%s", bound_url, priv->function);
     } else {