[PATCH 05/18] flickr: Add helper function to get token

["Juan A. Suarez Romero" <jasuarez igalia com>]

---
 src/flickr/grl-flickr-auth.c |   49 ++++++++++++++++++++++++++++++++++++++++++
 src/flickr/grl-flickr-auth.h |    4 +++
 2 files changed, 53 insertions(+), 0 deletions(-)

diff --git a/src/flickr/grl-flickr-auth.c b/src/flickr/grl-flickr-auth.c
index 40a3104..5a28a84 100644
--- a/src/flickr/grl-flickr-auth.c
+++ b/src/flickr/grl-flickr-auth.c
@@ -177,3 +177,52 @@ grl_flickr_get_login_link (const gchar *api_key,
 
   return url;
 }
+
+gchar *
+grl_flickr_get_token (const gchar *api_key,
+                      const gchar *secret,
+                      const gchar *frob)
+{
+  GError *error = NULL;
+  GFile *uri;
+  GVfs *vfs;
+  gchar *api_sig;
+  gchar *contents;
+  gchar *token;
+  gchar *url;
+
+  api_sig = get_api_sig (secret,
+                         "method", "flickr.auth.getToken",
+                         "api_key", api_key,
+                         "frob", frob,
+                         NULL);
+
+  /* Build url */
+  url = g_strdup_printf (FLICKR_ENTRYPOINT
+                         "method=flickr.auth.getToken&"
+                         "api_key=%s&"
+                         "api_sig=%s&"
+                         "frob=%s",
+                         api_key,
+                         api_sig,
+                         frob);
+  g_free (api_sig);
+
+  /* Load content */
+  vfs = g_vfs_get_default ();
+  uri = g_vfs_get_file_for_uri (vfs, url);
+  g_free (url);
+  if (!g_file_load_contents (uri, NULL, &contents, NULL, NULL, &error)) {
+    g_warning ("Unable to get Flickr's token: %s", error->message);
+    return NULL;
+  }
+
+  /* Get token */
+  token = get_xpath_element (contents, "/rsp/auth/token");
+  g_free (contents);
+  if (!token) {
+    g_warning ("Can not get Flickr's token");
+  }
+
+  return token;
+}
diff --git a/src/flickr/grl-flickr-auth.h b/src/flickr/grl-flickr-auth.h
index 6c32452..a34307f 100644
--- a/src/flickr/grl-flickr-auth.h
+++ b/src/flickr/grl-flickr-auth.h
@@ -41,4 +41,8 @@ gchar *grl_flickr_get_login_link (const gchar *api_key,
                                   const gchar *frob,
                                   FlickrPerm perm);
 
+gchar *grl_flickr_get_token (const gchar *api_key,
+                             const gchar *secret,
+                             const gchar *frob);
+
 #endif /* _GRL_FLICKR_AUTH_SOURCE_H_ */
-- 
1.7.0.4