belle_sip_request_t* sal_op_build_request(SalOp *op,const char* method) {
belle_sip_header_from_t* from_header;
belle_sip_header_to_t* to_header;
belle_sip_provider_t* prov=op->base.root->prov;
belle_sip_request_t *req;
belle_sip_uri_t* req_uri;
char token[10];
if (strcmp("REGISTER",method)==0 || op->privacy==SalPrivacyNone) {
from_header = belle_sip_header_from_create(BELLE_SIP_HEADER_ADDRESS(sal_op_get_from_address(op))
,belle_sip_random_token(token,sizeof(token)));
} else {
from_header=belle_sip_header_from_create2("Anonymous <sip:[email protected]>",belle_sip_random_token(token,sizeof(token)));
}
/*make sure to preserve components like headers or port*/
req_uri = (belle_sip_uri_t*)belle_sip_object_clone((belle_sip_object_t*)belle_sip_header_address_get_uri(BELLE_SIP_HEADER_ADDRESS(sal_op_get_to_address(op))));
belle_sip_uri_set_secure(req_uri,sal_op_is_secure(op));
to_header = belle_sip_header_to_create(BELLE_SIP_HEADER_ADDRESS(sal_op_get_to_address(op)),NULL);
req=belle_sip_request_create(
req_uri,
method,
belle_sip_provider_create_call_id(prov),
belle_sip_header_cseq_create(20,method),
from_header,
to_header,
belle_sip_header_via_new(),
70);
if (op->privacy & SalPrivacyId) {
belle_sip_header_p_preferred_identity_t* p_preferred_identity=belle_sip_header_p_preferred_identity_create(BELLE_SIP_HEADER_ADDRESS(sal_op_get_from_address(op)));
belle_sip_message_add_header(BELLE_SIP_MESSAGE(req),BELLE_SIP_HEADER(p_preferred_identity));
}
if (strcmp("REGISTER",method)!=0 && op->privacy!=SalPrivacyNone ){
belle_sip_header_privacy_t* privacy_header=belle_sip_header_privacy_new();
if (op->privacy&SalPrivacyCritical)
belle_sip_header_privacy_add_privacy(privacy_header,sal_privacy_to_string(SalPrivacyCritical));
if (op->privacy&SalPrivacyHeader)
belle_sip_header_privacy_add_privacy(privacy_header,sal_privacy_to_string(SalPrivacyHeader));
if (op->privacy&SalPrivacyId)
belle_sip_header_privacy_add_privacy(privacy_header,sal_privacy_to_string(SalPrivacyId));
if (op->privacy&SalPrivacyNone)
belle_sip_header_privacy_add_privacy(privacy_header,sal_privacy_to_string(SalPrivacyNone));
if (op->privacy&SalPrivacySession)
belle_sip_header_privacy_add_privacy(privacy_header,sal_privacy_to_string(SalPrivacySession));
if (op->privacy&SalPrivacyUser)
belle_sip_header_privacy_add_privacy(privacy_header,sal_privacy_to_string(SalPrivacyUser));
belle_sip_message_add_header(BELLE_SIP_MESSAGE(req),BELLE_SIP_HEADER(privacy_header));
}
belle_sip_message_add_header(BELLE_SIP_MESSAGE(req),sal_make_supported_header(op->base.root));
return req;
}
BELLE_SIP_INSTANCIATE_CUSTOM_VPTR_END
void belle_sip_server_transaction_init(belle_sip_server_transaction_t *t, belle_sip_provider_t *prov,belle_sip_request_t *req){
const char *branch;
belle_sip_header_via_t *via=BELLE_SIP_HEADER_VIA(belle_sip_message_get_header((belle_sip_message_t*)req,"via"));
branch=belle_sip_header_via_get_branch(via);
if (branch==NULL || strncmp(branch,BELLE_SIP_BRANCH_MAGIC_COOKIE,strlen(BELLE_SIP_BRANCH_MAGIC_COOKIE))!=0){
branch=req->rfc2543_branch;
if (branch==NULL) belle_sip_fatal("No computed branch for RFC2543 style of message, this should never happen.");
}
t->base.branch_id=belle_sip_strdup(branch);
belle_sip_transaction_init((belle_sip_transaction_t*)t,prov,req);
belle_sip_random_token(t->to_tag,sizeof(t->to_tag));
}
BELLE_SIP_INSTANCIATE_CUSTOM_VPTR_END
void belle_sip_client_transaction_init(belle_sip_client_transaction_t *obj, belle_sip_provider_t *prov, belle_sip_request_t *req){
belle_sip_header_via_t *via=BELLE_SIP_HEADER_VIA(belle_sip_message_get_header((belle_sip_message_t*)req,"via"));
char token[BELLE_SIP_BRANCH_ID_LENGTH];
if (!via){
belle_sip_fatal("belle_sip_client_transaction_init(): No via in request.");
}
if (strcmp(belle_sip_request_get_method(req),"CANCEL")!=0){
obj->base.branch_id=belle_sip_strdup_printf(BELLE_SIP_BRANCH_MAGIC_COOKIE ".%s",belle_sip_random_token(token,sizeof(token)));
belle_sip_header_via_set_branch(via,obj->base.branch_id);
}else{
obj->base.branch_id=belle_sip_strdup(belle_sip_header_via_get_branch(via));
}
belle_sip_transaction_init((belle_sip_transaction_t*)obj, prov,req);
}
belle_sip_request_t* sal_op_build_request(SalOp *op,const char* method) {
belle_sip_header_from_t* from_header;
belle_sip_header_to_t* to_header;
belle_sip_provider_t* prov=op->base.root->prov;
belle_sip_request_t *req;
belle_sip_uri_t* req_uri;
belle_sip_uri_t* to_uri;
const SalAddress* to_address;
const MSList *elem=sal_op_get_route_addresses(op);
char token[10];
/* check that the op has a correct to address */
to_address = sal_op_get_to_address(op);
if( to_address == NULL ){
ms_error("No To: address, cannot build request");
return NULL;
}
to_uri = belle_sip_header_address_get_uri(BELLE_SIP_HEADER_ADDRESS(to_address));
if( to_uri == NULL ){
ms_error("To: address is invalid, cannot build request");
return NULL;
}
if (strcmp("REGISTER",method)==0 || op->privacy==SalPrivacyNone) {
from_header = belle_sip_header_from_create(BELLE_SIP_HEADER_ADDRESS(sal_op_get_from_address(op))
,belle_sip_random_token(token,sizeof(token)));
} else {
from_header=belle_sip_header_from_create2("Anonymous <sip:[email protected]>",belle_sip_random_token(token,sizeof(token)));
}
/*make sure to preserve components like headers or port*/
req_uri = (belle_sip_uri_t*)belle_sip_object_clone((belle_sip_object_t*)to_uri);
belle_sip_uri_set_secure(req_uri,sal_op_is_secure(op));
to_header = belle_sip_header_to_create(BELLE_SIP_HEADER_ADDRESS(to_address),NULL);
req=belle_sip_request_create(
req_uri,
method,
belle_sip_provider_create_call_id(prov),
belle_sip_header_cseq_create(20,method),
from_header,
to_header,
belle_sip_header_via_new(),
70);
if (op->privacy & SalPrivacyId) {
belle_sip_header_p_preferred_identity_t* p_preferred_identity=belle_sip_header_p_preferred_identity_create(BELLE_SIP_HEADER_ADDRESS(sal_op_get_from_address(op)));
belle_sip_message_add_header(BELLE_SIP_MESSAGE(req),BELLE_SIP_HEADER(p_preferred_identity));
}
if (elem && strcmp(method,"REGISTER")!=0 && !op->base.root->no_initial_route){
add_initial_route_set(req,elem);
}
if (strcmp("REGISTER",method)!=0 && op->privacy!=SalPrivacyNone ){
belle_sip_header_privacy_t* privacy_header=belle_sip_header_privacy_new();
if (op->privacy&SalPrivacyCritical)
belle_sip_header_privacy_add_privacy(privacy_header,sal_privacy_to_string(SalPrivacyCritical));
if (op->privacy&SalPrivacyHeader)
belle_sip_header_privacy_add_privacy(privacy_header,sal_privacy_to_string(SalPrivacyHeader));
if (op->privacy&SalPrivacyId)
belle_sip_header_privacy_add_privacy(privacy_header,sal_privacy_to_string(SalPrivacyId));
if (op->privacy&SalPrivacyNone)
belle_sip_header_privacy_add_privacy(privacy_header,sal_privacy_to_string(SalPrivacyNone));
if (op->privacy&SalPrivacySession)
belle_sip_header_privacy_add_privacy(privacy_header,sal_privacy_to_string(SalPrivacySession));
if (op->privacy&SalPrivacyUser)
belle_sip_header_privacy_add_privacy(privacy_header,sal_privacy_to_string(SalPrivacyUser));
belle_sip_message_add_header(BELLE_SIP_MESSAGE(req),BELLE_SIP_HEADER(privacy_header));
}
belle_sip_message_add_header(BELLE_SIP_MESSAGE(req),op->base.root->supported);
return req;
}
char *sal_get_random_token(int size){
return belle_sip_random_token(ms_malloc(size),size);
}
static int belle_sip_refresher_refresh_internal(belle_sip_refresher_t* refresher, int expires, int auth_mandatory, belle_sip_list_t** auth_infos, belle_sip_uri_t *requri) {
belle_sip_request_t*old_request=belle_sip_transaction_get_request(BELLE_SIP_TRANSACTION(refresher->transaction));
belle_sip_response_t*old_response=belle_sip_transaction_get_response(BELLE_SIP_TRANSACTION(refresher->transaction));
belle_sip_dialog_t* dialog = refresher->dialog;
belle_sip_client_transaction_t* client_transaction;
belle_sip_request_t* request;
belle_sip_header_expires_t* expires_header;
belle_sip_uri_t* preset_route=refresher->transaction->preset_route;
belle_sip_provider_t* prov=refresher->transaction->base.provider;
belle_sip_header_contact_t* contact;
/*first remove timer if any*/
if (expires >=0) {
refresher->target_expires=expires;
} else {
/*-1 keep last value*/
}
if (!dialog) {
const belle_sip_transaction_state_t state=belle_sip_transaction_get_state(BELLE_SIP_TRANSACTION(refresher->transaction));
/*create new request*/
if (belle_sip_transaction_state_is_transient(state)) {
/*operation pending, cannot update authorization headers*/
belle_sip_header_cseq_t* cseq;
belle_sip_message("Refresher [%p] already has transaction [%p] in state [%s]" ,refresher
,refresher->transaction
,belle_sip_transaction_state_to_string(state));
if (strcmp(belle_sip_request_get_method(old_request),"PUBLISH")==0) {
belle_sip_message("Refresher [%p] new publish is delayed to end of ongoing transaction" ,refresher);
refresher->publish_pending = TRUE;
return 0;
} else {
request=belle_sip_request_clone_with_body(belle_sip_transaction_get_request(BELLE_SIP_TRANSACTION(refresher->transaction)));
cseq=belle_sip_message_get_header_by_type(request,belle_sip_header_cseq_t);
belle_sip_header_cseq_set_seq_number(cseq,belle_sip_header_cseq_get_seq_number(cseq)+1);
}
} else {
request=belle_sip_client_transaction_create_authenticated_request(refresher->transaction,auth_infos,refresher->realm);
}
if (requri){
/*case where we are redirected*/
belle_sip_request_set_uri(request,requri);
/*remove auth headers, they are not valid for new destination*/
belle_sip_message_remove_header(BELLE_SIP_MESSAGE(request),BELLE_SIP_AUTHORIZATION);
belle_sip_message_remove_header(BELLE_SIP_MESSAGE(request),BELLE_SIP_PROXY_AUTHORIZATION);
}
} else {
switch (belle_sip_dialog_get_state(dialog)) {
case BELLE_SIP_DIALOG_CONFIRMED: {
if (belle_sip_dialog_request_pending(dialog)){
belle_sip_message("Cannot refresh now, there is a pending request in the dialog.");
return -1;
}
request=belle_sip_dialog_create_request_from(dialog,old_request);
if (strcmp(belle_sip_request_get_method(request),"SUBSCRIBE")==0) {
belle_sip_header_content_type_t *content_type;
/*put expire header*/
if (!(expires_header = belle_sip_message_get_header_by_type(request,belle_sip_header_expires_t))) {
expires_header = belle_sip_header_expires_new();
belle_sip_message_add_header(BELLE_SIP_MESSAGE(request),BELLE_SIP_HEADER(expires_header));
}
if ((content_type = belle_sip_message_get_header_by_type(request, belle_sip_header_content_type_t))
&& strcasecmp("application", belle_sip_header_content_type_get_type(content_type)) == 0
&& strcasecmp("resource-lists+xml", belle_sip_header_content_type_get_subtype(content_type)) == 0) {
/*rfc5367
3.2. Subsequent SUBSCRIBE Requests
...
At this point, there are no semantics associated with resource-list
bodies in subsequent SUBSCRIBE requests (although future extensions
can define them). Therefore, UACs SHOULD NOT include resource-list
bodies in subsequent SUBSCRIBE requests to a resource list server.
*/
belle_sip_message("Removing body, content type and content length for refresher [%p]",refresher);
belle_sip_message_set_body(BELLE_SIP_MESSAGE(request), NULL, 0);
belle_sip_message_remove_header(BELLE_SIP_MESSAGE(request),BELLE_SIP_CONTENT_TYPE);
belle_sip_message_remove_header(BELLE_SIP_MESSAGE(request),BELLE_SIP_CONTENT_LENGTH);
}
}
belle_sip_provider_add_authorization(prov,request,old_response,NULL,auth_infos,refresher->realm);
break;
}
case BELLE_SIP_DIALOG_TERMINATED: {
if (refresher->first_acknoleged_request) {
char tmp[11];
belle_sip_message("Dialog [%p] is in state terminated, recreating a new one for refresher [%p]",dialog,refresher);
request = refresher->first_acknoleged_request;
belle_sip_header_cseq_set_seq_number(belle_sip_message_get_header_by_type(request,belle_sip_header_cseq_t)
,20);
belle_sip_parameters_remove_parameter(BELLE_SIP_PARAMETERS(belle_sip_message_get_header_by_type(request,belle_sip_header_to_t)),"tag");
belle_sip_header_call_id_set_call_id( belle_sip_message_get_header_by_type(request,belle_sip_header_call_id_t)
, belle_sip_random_token(tmp,sizeof(tmp)));
break;
} /*else nop, error case*/
}
default: {
belle_sip_error("Unexpected dialog state [%s] for dialog [%p], cannot refresh [%s]"
,belle_sip_dialog_state_to_string(belle_sip_dialog_get_state(dialog))
,dialog
,belle_sip_request_get_method(old_request));
return -1;
}
}
}
if (auth_mandatory && auth_infos && belle_sip_list_find_custom(*auth_infos, unfilled_auth_info, NULL)) {
belle_sip_message("Auth info not found for this refresh operation on [%p]",refresher);
if (request) belle_sip_object_unref(request);
return -1;
}
refresher->on_io_error=0; /*reset this flag*/
/*update expires in any cases*/
expires_header = belle_sip_message_get_header_by_type(request,belle_sip_header_expires_t);
if (expires_header)
belle_sip_header_expires_set_expires(expires_header,refresher->target_expires);
contact=belle_sip_message_get_header_by_type(request,belle_sip_header_contact_t);
if (contact && belle_sip_header_contact_get_expires(contact)>=0)
belle_sip_header_contact_set_expires(contact,refresher->target_expires);
/*update the Date header if it exists*/
{
belle_sip_header_date_t *date=belle_sip_message_get_header_by_type(request,belle_sip_header_date_t);
if (date){
time_t curtime=time(NULL);
belle_sip_header_date_set_time(date,&curtime);
}
}
client_transaction = belle_sip_provider_create_client_transaction(prov,request);
client_transaction->base.is_internal=1;
belle_sip_transaction_set_application_data(BELLE_SIP_TRANSACTION(client_transaction),refresher);
if (request == refresher->first_acknoleged_request) { /*request is now ref by transaction so no need to keepo it*/
belle_sip_object_unref(refresher->first_acknoleged_request);
refresher->first_acknoleged_request = NULL;
}
switch (belle_sip_transaction_get_state(BELLE_SIP_TRANSACTION(refresher->transaction))) {
case BELLE_SIP_TRANSACTION_INIT:
case BELLE_SIP_TRANSACTION_CALLING:
case BELLE_SIP_TRANSACTION_TRYING:
/*very early state, we can assume nobody will answer, stop retransmiting*/
belle_sip_transaction_terminate(BELLE_SIP_TRANSACTION(refresher->transaction));
break;
default: /*we preserve the transaction "as is"*/
break;
}
/*update reference transaction for next refresh*/
belle_sip_object_unref(refresher->transaction);
refresher->transaction=client_transaction;
belle_sip_object_ref(refresher->transaction);
if (belle_sip_client_transaction_send_request_to(client_transaction,requri?requri:preset_route)) { /*send imediatly to requri in case of redirect*/
belle_sip_error("Cannot send refresh method [%s] for refresher [%p]"
,belle_sip_request_get_method(request)
,refresher);
return -1;
}
if (expires==0) belle_sip_refresher_stop_internal(refresher,0); /*unregister transaction must be preserved*/
return 0;
}
static LinphoneNatPolicy * linphone_nat_policy_new(LinphoneCore *lc) {
char ref[17] = { 0 };
belle_sip_random_token(ref, 16);
return _linphone_nat_policy_new_with_ref(lc, ref);
}
