[evolution-ews] Fix leak and avoid to pass NULL to g_strrstr()

[Fabiano Fidêncio <ffidencio src gnome org>]

commit 50c6948f396ea99ec4993f4e6344d1af32f52b6c
Author: Fabiano Fidêncio <fidencio redhat com>
Date:   Thu Jun 20 13:59:46 2013 +0200

    Fix leak and avoid to pass NULL to g_strrstr()

 src/server/e-ews-oof-settings.c |   23 +++++++++++++++--------
 1 files changed, 15 insertions(+), 8 deletions(-)
---
diff --git a/src/server/e-ews-oof-settings.c b/src/server/e-ews-oof-settings.c
index b4c06ba..6f2e307 100644
--- a/src/server/e-ews-oof-settings.c
+++ b/src/server/e-ews-oof-settings.c
@@ -148,6 +148,7 @@ ews_oof_settings_get_response_cb (ESoapResponse *response,
        ESoapParameter *subsubparam;
        GDateTime *date_time;
        gchar *string;
+       gchar *text;
        GError *error = NULL;
 
        param = e_soap_response_get_first_parameter_by_name (
@@ -239,24 +240,30 @@ ews_oof_settings_get_response_cb (ESoapResponse *response,
        subsubparam = e_soap_parameter_get_first_child_by_name (
                subparam, "Message");
        string = e_soap_parameter_get_string_value (subsubparam);
-       if (g_strrstr (string, "</body>") != NULL)
-               string = ews_oof_settings_text_from_html (string);
+       if (string == NULL)
+               text = NULL;
+       else if (g_strrstr (string, "</body>") != NULL)
+               text = ews_oof_settings_text_from_html (string);
        else if (g_strrstr (string, "BodyFragment") != NULL)
-               string = ews_oof_settings_text_from_html (string);
-       e_ews_oof_settings_set_internal_reply (settings, string);
+               text = ews_oof_settings_text_from_html (string);
+       e_ews_oof_settings_set_internal_reply (settings, text ? text : "");
        g_free (string);
+       g_free (text);
 
        subparam = e_soap_parameter_get_first_child_by_name (
                param, "ExternalReply");
        subsubparam = e_soap_parameter_get_first_child_by_name (
                subparam, "Message");
        string = e_soap_parameter_get_string_value (subsubparam);
-       if (g_strrstr (string, "</body>") != NULL)
-               string = ews_oof_settings_text_from_html (string);
+       if (string == NULL)
+               text = NULL;
+       else if (g_strrstr (string, "</body>") != NULL)
+               text = ews_oof_settings_text_from_html (string);
        else if (g_strrstr (string, "BodyFragment") != NULL)
-               string = ews_oof_settings_text_from_html (string);
-       e_ews_oof_settings_set_external_reply (settings, string);
+               text = ews_oof_settings_text_from_html (string);
+       e_ews_oof_settings_set_external_reply (settings, text ? text : "");
        g_free (string);
+       g_free (text);
 
        g_object_unref (source_object);
 }