src/core/sip-sec-basic.c

   1 /**
   2  * @file sip-sec-basic.c
   3  *
   4  * pidgin-sipe
   5  *
   6  * Copyright (C) 2013-2015 SIPE Project <http://sipe.sourceforge.net/>
   7  *
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation; either version 2 of the License, or
  12  * (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  22  *
  23  *
  24  * Implementation for HTTP "WWW-Authenticate: Basic" scheme (RFC1945).
  25  */
  26
  27 #include <string.h>
  28
  29 #include <glib.h>
  30
  31 #include "sipe-common.h"
  32 #include "sip-sec.h"
  33 #include "sip-sec-mech.h"
  34 #include "sip-sec-basic.h"
  35 #include "sipe-backend.h"
  36
  37 /* Security context for Basic */
  38 typedef struct _context_basic {
  39         struct sip_sec_context common;
  40         gchar *token;
  41         guint length;
  42 } *context_basic;
  43
  44 /* sip-sec-mech.h API implementation for Basic */
  45
  46 static gboolean
  47 sip_sec_acquire_cred__basic(SipSecContext context,
  48                             const gchar *username,
  49                             const gchar *password)
  50 {
  51         context_basic ctx = (context_basic) context;
  52
  53         SIPE_DEBUG_INFO_NOFORMAT("sip_sec_acquire_cred__basic: entering");
  54
  55         if (!username || !password)
  56                 return(FALSE);
  57
  58         /* calculate Basic token (RFC1945 section 11.1) */
  59         ctx->token  = g_strdup_printf("%s:%s", username, password);
  60         ctx->length = strlen(ctx->token);
  61
  62         return(TRUE);
  63 }
  64
  65 static gboolean
  66 sip_sec_init_sec_context__basic(SipSecContext context,
  67                                 SIPE_UNUSED_PARAMETER SipSecBuffer in_buff,
  68                                 SipSecBuffer *out_buff,
  69                                 SIPE_UNUSED_PARAMETER const gchar *service_name)
  70 {
  71         context_basic ctx = (context_basic) context;
  72
  73         out_buff->length = ctx->length;
  74         out_buff->value  = (guint8 *) g_strdup(ctx->token);
  75
  76         return(TRUE);
  77 }
  78
  79 static gboolean
  80 sip_sec_make_signature__basic(SIPE_UNUSED_PARAMETER SipSecContext context,
  81                               SIPE_UNUSED_PARAMETER const gchar *message,
  82                               SIPE_UNUSED_PARAMETER SipSecBuffer *signature)
  83 {
  84         /* No implementation needed, as Basic is not used for SIP */
  85         return(FALSE);
  86 }
  87
  88 static gboolean
  89 sip_sec_verify_signature__basic(SIPE_UNUSED_PARAMETER SipSecContext context,
  90                                 SIPE_UNUSED_PARAMETER const gchar *message,
  91                                 SIPE_UNUSED_PARAMETER SipSecBuffer signature)
  92 {
  93         /* No implementation needed, as Basic is not used for SIP */
  94         return(FALSE);
  95 }
  96
  97 static void
  98 sip_sec_destroy_sec_context__basic(SipSecContext context)
  99 {
 100         context_basic ctx = (context_basic) context;
 101
 102         g_free(ctx->token);
 103         g_free(ctx);
 104 }
 105
 106 static const gchar *
 107 sip_sec_context_name__basic(SIPE_UNUSED_PARAMETER SipSecContext context)
 108 {
 109         return("Basic");
 110 }
 111
 112 SipSecContext
 113 sip_sec_create_context__basic(SIPE_UNUSED_PARAMETER guint type)
 114 {
 115         context_basic context = g_malloc0(sizeof(struct _context_basic));
 116         if (!context) return(NULL);
 117
 118         context->common.acquire_cred_func     = sip_sec_acquire_cred__basic;
 119         context->common.init_context_func     = sip_sec_init_sec_context__basic;
 120         context->common.destroy_context_func  = sip_sec_destroy_sec_context__basic;
 121         context->common.make_signature_func   = sip_sec_make_signature__basic;
 122         context->common.verify_signature_func = sip_sec_verify_signature__basic;
 123         context->common.context_name_func     = sip_sec_context_name__basic;
 124
 125         return((SipSecContext) context);
 126 }
 127
 128 /*
 129   Local Variables:
 130   mode: c
 131   c-file-style: "bsd"
 132   indent-tabs-mode: t
 133   tab-width: 8
 134   End:
 135 */