int belle_sip_auth_helper_fill_authorization(belle_sip_header_authorization_t* authorization
,const char* method
,const char* ha1) {
int auth_mode=0;
char* uri;
char ha2[16*2 + 1];
char response[16*2 + 1];
char cnonce[9];
response[32]=ha2[32]='\0';
if (belle_sip_header_authorization_get_scheme(authorization) != NULL &&
strcmp("Digest",belle_sip_header_authorization_get_scheme(authorization))!=0) {
belle_sip_error("belle_sip_fill_authorization_header, unsupported schema [%s]"
,belle_sip_header_authorization_get_scheme(authorization));
return -1;
}
if (belle_sip_header_authorization_get_qop(authorization)
&& !(auth_mode=strcmp("auth",belle_sip_header_authorization_get_qop(authorization))==0)) {
belle_sip_error("belle_sip_fill_authorization_header, unsupported qop [%s], use auth or nothing instead"
,belle_sip_header_authorization_get_qop(authorization));
return -1;
}
CHECK_IS_PRESENT(authorization,authorization,realm)
CHECK_IS_PRESENT(authorization,authorization,nonce)
CHECK_IS_PRESENT(authorization,authorization,uri)
if (auth_mode) {
CHECK_IS_PRESENT(authorization,authorization,nonce_count)
if (!belle_sip_header_authorization_get_cnonce(authorization)) {
snprintf(cnonce,sizeof(cnonce),"%08x",(short)(long)authorization^0x5555555); /*spseudo randomly genrated cnonce*/
belle_sip_header_authorization_set_cnonce(authorization,cnonce);
}
}
if (!method) {
belle_sip_error("belle_sip_fill_authorization_header, method not found ");
return -1;
}
uri=belle_sip_uri_to_string(belle_sip_header_authorization_get_uri(authorization));
belle_sip_auth_helper_compute_ha2(method,uri,ha2);
belle_sip_free(uri);
if (auth_mode) {
/*response=MD5(HA1:nonce:nonce_count:cnonce:qop:HA2)*/
belle_sip_auth_helper_compute_response_qop_auth(ha1
,belle_sip_header_authorization_get_nonce(authorization)
,belle_sip_header_authorization_get_nonce_count(authorization)
,belle_sip_header_authorization_get_cnonce(authorization)
,belle_sip_header_authorization_get_qop(authorization)
,ha2
,response);
} else {
/*response=MD5(ha1:nonce:ha2)*/
belle_sip_auth_helper_compute_response(ha1,belle_sip_header_authorization_get_nonce(authorization),ha2,response);
}
belle_sip_header_authorization_set_response(authorization,(const char*)response);
return 0;
}
static void test_authentication_qop_auth(void) {
const char* l_raw_header = "WWW-Authenticate: Digest "
"algorithm=MD5, realm=\"sip.linphone.org\", opaque=\"1bc7f9097684320\","
" qop=\"auth,auth-int\", nonce=\"cz3h0gAAAAC06TKKAABmTz1V9OcAAAAA\"";
char ha1[33];
belle_sip_header_www_authenticate_t* www_authenticate=belle_sip_header_www_authenticate_parse(l_raw_header);
belle_sip_header_authorization_t* authorization = belle_sip_auth_helper_create_authorization(www_authenticate);
belle_sip_header_authorization_set_uri(authorization,belle_sip_uri_parse("sip:sip.linphone.org"));
belle_sip_header_authorization_set_nonce_count(authorization,1);
belle_sip_header_authorization_set_qop(authorization,"auth");
belle_sip_header_authorization_set_cnonce(authorization,"8302210f"); /*for testing purpose*/
BC_ASSERT_EQUAL_FATAL(0,belle_sip_auth_helper_compute_ha1("jehan-mac","sip.linphone.org","toto",ha1), int, "%d");
BC_ASSERT_EQUAL_FATAL(0,belle_sip_auth_helper_fill_authorization(authorization,"REGISTER",ha1), int, "%d");
BC_ASSERT_STRING_EQUAL(belle_sip_header_authorization_get_qop(authorization),"auth");
BC_ASSERT_STRING_EQUAL(belle_sip_header_authorization_get_response(authorization),"694dab8dfe7d50d28ba61e8c43e30666");
BC_ASSERT_EQUAL(belle_sip_header_authorization_get_nonce_count(authorization),1, int, "%d");
belle_sip_object_unref(www_authenticate);
belle_sip_object_unref(authorization);
}
int belle_sip_auth_helper_fill_authorization(belle_sip_header_authorization_t* authorization
,const char* method
,const char* ha1) {
int auth_mode=0;
char* uri;
char ha2[16*2 + 1];
char response[16*2 + 1];
char cnonce[9];
response[32]=ha2[32]='\0';
if (belle_sip_header_authorization_get_scheme(authorization) != NULL &&
strcmp("Digest",belle_sip_header_authorization_get_scheme(authorization))!=0) {
belle_sip_error("belle_sip_fill_authorization_header, unsupported schema [%s]"
,belle_sip_header_authorization_get_scheme(authorization));
return -1;
}
if (belle_sip_header_authorization_get_qop(authorization)
&& !(auth_mode=strcmp("auth",belle_sip_header_authorization_get_qop(authorization))==0)) {
belle_sip_error("belle_sip_fill_authorization_header, unsupported qop [%s], use auth or nothing instead"
,belle_sip_header_authorization_get_qop(authorization));
return -1;
}
CHECK_IS_PRESENT(authorization,authorization,realm)
CHECK_IS_PRESENT(authorization,authorization,nonce)
if (BELLE_SIP_IS_INSTANCE_OF(authorization,belle_http_header_authorization_t)) {
/*http case*/
if (!belle_http_header_authorization_get_uri(BELLE_HTTP_HEADER_AUTHORIZATION(authorization))) {
belle_sip_error("parameter uri not found for http header authorization");
return-1;
}
} else {
CHECK_IS_PRESENT(authorization,authorization,uri)
}
if (auth_mode) {
CHECK_IS_PRESENT(authorization,authorization,nonce_count)
if (!belle_sip_header_authorization_get_cnonce(authorization)) {
int cnonce_value=0;
belle_sip_random_bytes((unsigned char*)&cnonce_value, sizeof(cnonce_value));
snprintf(cnonce, sizeof(cnonce), "%08x", cnonce_value);
belle_sip_header_authorization_set_cnonce(authorization,cnonce);
}
}
if (!method) {
belle_sip_error("belle_sip_fill_authorization_header, method not found ");
return -1;
}
if (BELLE_SIP_IS_INSTANCE_OF(authorization,belle_http_header_authorization_t)) {
/*http case*/
uri=belle_generic_uri_to_string(belle_http_header_authorization_get_uri(BELLE_HTTP_HEADER_AUTHORIZATION(authorization)));
} else {
uri=belle_sip_uri_to_string(belle_sip_header_authorization_get_uri(authorization));
}
belle_sip_auth_helper_compute_ha2(method,uri,ha2);
belle_sip_free(uri);
if (auth_mode) {
/*response=MD5(HA1:nonce:nonce_count:cnonce:qop:HA2)*/
belle_sip_auth_helper_compute_response_qop_auth(ha1
,belle_sip_header_authorization_get_nonce(authorization)
,belle_sip_header_authorization_get_nonce_count(authorization)
,belle_sip_header_authorization_get_cnonce(authorization)
,belle_sip_header_authorization_get_qop(authorization)
,ha2
,response);
} else {
/*response=MD5(ha1:nonce:ha2)*/
belle_sip_auth_helper_compute_response(ha1,belle_sip_header_authorization_get_nonce(authorization),ha2,response);
}
belle_sip_header_authorization_set_response(authorization,(const char*)response);
return 0;
}
