camel/providers/nntp/camel-nntp-auth.c

   1 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
   2 /* camel-nntp-auth.c : authentication for nntp */
   3
   4 /*
   5  *
   6  * Copyright (C) 2000 Ximian, Inc. <toshok@ximian.com>
   7  *
   8  * This program is free software; you can redistribute it and/or
   9  * modify it under the terms of version 2 of the GNU Lesser General Public
  10  * License as published by the Free Software Foundation.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public License
  18  * along with this program; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
  20  * USA
  21  */
  22
  23 #ifdef HAVE_CONFIG_H
  24 #include <config.h>
  25 #endif
  26
  27 #include <string.h>
  28
  29 #include "camel-exception.h"
  30 #include "camel-session.h"
  31
  32 #include "camel-nntp-auth.h"
  33 #include "camel-nntp-store.h"
  34 #include "camel-nntp-resp-codes.h"
  35
  36 int
  37 camel_nntp_auth_authenticate (CamelNNTPStore *store, CamelException *ex)
  38 {
  39         CamelService *service = CAMEL_SERVICE (store);
  40         CamelSession *session = camel_service_get_session (service);
  41         int resp;
  42
  43         if (!service->url->authmech && !service->url->passwd) {
  44                 gchar *prompt;
  45
  46                 prompt = g_strdup_printf (_("Please enter the NNTP password for %s@%s"),
  47                                           service->url->user, service->url->host);
  48                 service->url->passwd =
  49                         camel_session_get_password (session, prompt,
  50                                                     TRUE, service, "password", ex);
  51                 g_free (prompt);
  52
  53                 if (!service->url->passwd) {
  54                         camel_exception_set (ex, CAMEL_EXCEPTION_USER_CANCEL,
  55                                              "You didn\'t enter a password.");
  56                         resp = 666;
  57                         goto done;
  58                 }
  59         }
  60
  61         /* first send username */
  62         resp = camel_nntp_command (store, ex, NULL, "AUTHINFO USER %s", service->url->user);
  63
  64         if (resp == NNTP_AUTH_REJECTED) {
  65                 camel_exception_setv (ex, CAMEL_EXCEPTION_SERVICE_CANT_AUTHENTICATE,
  66                                       _("Server rejected username"));
  67                 goto done;
  68
  69         }
  70         else if (resp != NNTP_AUTH_CONTINUE) {
  71                 camel_exception_setv (ex, CAMEL_EXCEPTION_SERVICE_CANT_AUTHENTICATE,
  72                                       _("Failed to send username to server"));
  73                 goto done;
  74         }
  75
  76         /* then send the username if the server asks for it */
  77         resp = camel_nntp_command (store, ex, NULL, "AUTHINFO PASS %s", service->url->passwd);
  78
  79         if (resp == NNTP_AUTH_REJECTED) {
  80                 camel_exception_setv (ex, CAMEL_EXCEPTION_SERVICE_CANT_AUTHENTICATE,
  81                                       _("Server rejected username/password"));
  82                 goto done;
  83         }
  84
  85  done:
  86
  87         if (service->url->passwd) {
  88                 /* let's be paranoid */
  89                 memset (service->url->passwd, 0, strlen (service->url->passwd));
  90                 g_free (service->url->passwd);
  91                 service->url->passwd = NULL;
  92         }
  93         return resp;
  94 }