forked from mirrors/linphone-iphone
276 lines
10 KiB
C
276 lines
10 KiB
C
/*
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linphone
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Copyright (C) 2012 Belledonne Communications, Grenoble, France
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#include "sal_impl.h"
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/*create an operation */
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SalOp * sal_op_new(Sal *sal){
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SalOp *op=ms_new0(SalOp,1);
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__sal_op_init(op,sal);
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sal_op_ref(op);
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return op;
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}
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void sal_op_release(SalOp *op){
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op->state=SalOpStateTerminated;
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sal_op_unref(op);
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}
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void sal_op_release_impl(SalOp *op){
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ms_message("Destroying op [%p]",op);
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if (op->pending_auth_transaction) belle_sip_object_unref(op->pending_auth_transaction);
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if (op->auth_info) sal_auth_info_delete(op->auth_info);
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if (op->sdp_answer) belle_sip_object_unref(op->sdp_answer);
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if (op->registration_refresher) {
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belle_sip_refresher_stop(op->registration_refresher);
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belle_sip_object_unref(op->registration_refresher);
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}
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if(op->replaces) belle_sip_object_unref(op->replaces);
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if(op->referred_by) belle_sip_object_unref(op->referred_by);
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if (op->pending_inv_client_trans) belle_sip_object_unref(op->pending_inv_client_trans);
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__sal_op_free(op);
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return ;
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}
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void sal_op_authenticate(SalOp *op, const SalAuthInfo *info){
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/*for sure auth info will be accesible from the provider*/
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sal_process_authentication(op);
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return ;
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}
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void sal_op_cancel_authentication(SalOp *h){
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ms_fatal("sal_op_cancel_authentication not implemented yet");
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return ;
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}
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int sal_op_get_auth_requested(SalOp *op, const char **realm, const char **username){
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*realm=op->auth_info?op->auth_info->realm:NULL;
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*username=op->auth_info?op->auth_info->username:NULL;
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return 0;
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}
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belle_sip_header_contact_t* sal_op_create_contact(SalOp *op,belle_sip_header_from_t* from_header) {
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belle_sip_uri_t* req_uri = (belle_sip_uri_t*)belle_sip_object_clone((belle_sip_object_t*)belle_sip_header_address_get_uri((belle_sip_header_address_t*)from_header));
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belle_sip_header_contact_t* contact_header;
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if (sal_op_get_contact_address(op)) {
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contact_header = belle_sip_header_contact_create(BELLE_SIP_HEADER_ADDRESS(sal_op_get_contact_address(op)));
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} else {
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contact_header= belle_sip_header_contact_new();
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belle_sip_header_address_set_uri((belle_sip_header_address_t*)contact_header,belle_sip_uri_new());
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belle_sip_uri_set_user(belle_sip_header_address_get_uri((belle_sip_header_address_t*)contact_header),belle_sip_uri_get_user(req_uri));
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}
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belle_sip_object_unref(req_uri);
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return contact_header;
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}
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belle_sip_request_t* sal_op_build_request(SalOp *op,const char* method) {
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belle_sip_header_from_t* from_header;
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belle_sip_header_to_t* to_header;
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belle_sip_provider_t* prov=op->base.root->prov;
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belle_sip_request_t *req;
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belle_sip_uri_t* req_uri;
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char token[10];
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from_header = belle_sip_header_from_create(BELLE_SIP_HEADER_ADDRESS(sal_op_get_from_address(op))
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,belle_sip_random_token(token,sizeof(token)));
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to_header = belle_sip_header_to_create(BELLE_SIP_HEADER_ADDRESS(sal_op_get_to_address(op)),NULL);
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req_uri = (belle_sip_uri_t*)belle_sip_object_clone((belle_sip_object_t*)belle_sip_header_address_get_uri((belle_sip_header_address_t*)to_header));
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req=belle_sip_request_create(
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req_uri,
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method,
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belle_sip_provider_create_call_id(prov),
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belle_sip_header_cseq_create(20,method),
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from_header,
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to_header,
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belle_sip_header_via_new(),
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70);
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belle_sip_message_add_header(BELLE_SIP_MESSAGE(req),BELLE_SIP_HEADER(op->base.root->user_agent));
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return req;
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}
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/*ping: main purpose is to obtain its own contact address behind firewalls*/
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int sal_ping(SalOp *op, const char *from, const char *to){
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sal_op_set_from(op,from);
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sal_op_set_to(op,to);
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return sal_op_send_request(op,sal_op_build_request(op,"OPTION"));
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}
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void sal_op_set_remote_ua(SalOp*op,belle_sip_message_t* message) {
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belle_sip_header_user_agent_t* user_agent=belle_sip_message_get_header_by_type(message,belle_sip_header_user_agent_t);
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char user_agent_string[256];
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if(user_agent && belle_sip_header_user_agent_get_products_as_string(user_agent,user_agent_string,sizeof(user_agent_string))>0) {
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op->base.remote_ua=ms_strdup(user_agent_string);
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}
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}
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void sal_op_resend_request(SalOp* op, belle_sip_request_t* request) {
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belle_sip_header_cseq_t* cseq=(belle_sip_header_cseq_t*)belle_sip_message_get_header(BELLE_SIP_MESSAGE(request),BELLE_SIP_CSEQ);
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belle_sip_header_cseq_set_seq_number(cseq,belle_sip_header_cseq_get_seq_number(cseq)+1);
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sal_op_send_request(op,request);
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}
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static int _sal_op_send_request_with_contact(SalOp* op, belle_sip_request_t* request,bool_t add_contact) {
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belle_sip_client_transaction_t* client_transaction;
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belle_sip_provider_t* prov=op->base.root->prov;
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belle_sip_header_route_t* route_header;
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belle_sip_uri_t* outbound_proxy=NULL;
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belle_sip_header_contact_t* contact;
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MSList* iterator;
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if (!op->dialog || belle_sip_dialog_get_state(op->dialog) == BELLE_SIP_DIALOG_NULL) {
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/*don't put route header if dialog is in confirmed state*/
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for(iterator=(MSList*)sal_op_get_route_addresses(op);iterator!=NULL;iterator=iterator->next) {
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if(!outbound_proxy) {
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/*first toute is outbound proxy*/
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outbound_proxy=belle_sip_header_address_get_uri(BELLE_SIP_HEADER_ADDRESS(iterator->data));
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} else {
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/*next are Route headers*/
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route_header = belle_sip_header_route_create(BELLE_SIP_HEADER_ADDRESS(iterator->data));
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belle_sip_message_add_header(BELLE_SIP_MESSAGE(request),BELLE_SIP_HEADER(route_header));
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}
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}
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}
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client_transaction = belle_sip_provider_create_client_transaction(prov,request);
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belle_sip_transaction_set_application_data(BELLE_SIP_TRANSACTION(client_transaction),sal_op_ref(op));
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if ( strcmp("INVITE",belle_sip_request_get_method(request))==0) {
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if (op->pending_inv_client_trans) belle_sip_object_unref(op->pending_inv_client_trans);
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op->pending_inv_client_trans=client_transaction; /*update pending inv for being able to cancel*/
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belle_sip_object_ref(op->pending_inv_client_trans);
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}
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if (add_contact) {
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contact = sal_op_create_contact(op,belle_sip_message_get_header_by_type(BELLE_SIP_MESSAGE(request),belle_sip_header_from_t));
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belle_sip_message_remove_header(BELLE_SIP_MESSAGE(request),BELLE_SIP_CONTACT);
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belle_sip_message_add_header(BELLE_SIP_MESSAGE(request),BELLE_SIP_HEADER(contact));
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}
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if (!belle_sip_message_get_header(BELLE_SIP_MESSAGE(request),BELLE_SIP_AUTHORIZATION)
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&& !belle_sip_message_get_header(BELLE_SIP_MESSAGE(request),BELLE_SIP_PROXY_AUTHORIZATION)) {
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/*hmm just in case we already have authentication param in cache*/
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belle_sip_provider_add_authorization(op->base.root->prov,request,NULL,NULL);
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}
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return belle_sip_client_transaction_send_request_to(client_transaction,outbound_proxy/*might be null*/);
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}
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int sal_op_send_request(SalOp* op, belle_sip_request_t* request) {
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bool_t need_contact=FALSE;
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/*
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Header field where proxy ACK BYE CAN INV OPT REG
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___________________________________________________________
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Contact R o - - m o o
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*/
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if (strcmp(belle_sip_request_get_method(request),"INVITE")==0
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||strcmp(belle_sip_request_get_method(request),"REGISTER")==0
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||strcmp(belle_sip_request_get_method(request),"SUBSCRIBE")==0
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||strcmp(belle_sip_request_get_method(request),"OPTION")==0)
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need_contact=TRUE;
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return _sal_op_send_request_with_contact(op, request,need_contact);
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}
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void sal_compute_sal_errors_from_code(int code ,SalError* sal_err,SalReason* sal_reason) {
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switch(code) {
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case 400:
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*sal_err=SalErrorUnknown;
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break;
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case 404:
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*sal_err=SalErrorFailure;
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*sal_reason=SalReasonNotFound;
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break;
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case 415:
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*sal_err=SalErrorFailure;
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*sal_reason=SalReasonMedia;
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break;
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case 422:
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ms_error ("422 not implemented yet");;
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break;
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case 480:
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*sal_err=SalErrorFailure;
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*sal_reason=SalReasonTemporarilyUnavailable;
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break;
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case 486:
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*sal_err=SalErrorFailure;
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*sal_reason=SalReasonBusy;
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break;
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case 487:
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break;
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case 600:
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*sal_err=SalErrorFailure;
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*sal_reason=SalReasonDoNotDisturb;
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break;
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case 603:
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*sal_err=SalErrorFailure;
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*sal_reason=SalReasonDeclined;
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break;
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default:
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if (code>0){
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*sal_err=SalErrorFailure;
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*sal_reason=SalReasonUnknown;
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}else *sal_err=SalErrorNoResponse;
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/* no break */
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}
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}
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/*return TRUE if error code*/
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bool_t sal_compute_sal_errors(belle_sip_response_t* response,SalError* sal_err,SalReason* sal_reason,char* reason, size_t reason_size) {
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int code = belle_sip_response_get_status_code(response);
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belle_sip_header_t* reason_header = belle_sip_message_get_header(BELLE_SIP_MESSAGE(response),"Reason");
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*sal_err=SalErrorUnknown;
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*sal_reason = SalReasonUnknown;
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if (reason_header){
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snprintf(reason
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,reason_size
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,"%s %s"
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,belle_sip_response_get_reason_phrase(response)
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,belle_sip_header_extension_get_value(BELLE_SIP_HEADER_EXTENSION(reason_header)));
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} else {
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strncpy(reason,belle_sip_response_get_reason_phrase(response),reason_size);
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}
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if (code>400) {
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sal_compute_sal_errors_from_code(code,sal_err,sal_reason);
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return TRUE;
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} else {
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return FALSE;
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}
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}
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void set_or_update_dialog(SalOp* op, belle_sip_dialog_t* dialog) {
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/*check if dialog has changed*/
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if (dialog != op->dialog) {
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ms_message("Dialog set from [%p] to [%p] for op [%p]",op->dialog,dialog,op);
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/*fixme, shouldn't we cancel previous dialog*/
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if (op->dialog)belle_sip_object_unref(op->dialog);
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op->dialog=dialog;
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belle_sip_dialog_set_application_data(op->dialog,op);
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belle_sip_object_ref(op->dialog);
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}
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}
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/*return reffed op*/
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SalOp* sal_op_ref(SalOp* op) {
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op->ref++;
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return op;
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}
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/*return null, destroy op if ref count =0*/
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void* sal_op_unref(SalOp* op) {
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if (--op->ref <=0) {
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sal_op_release_impl(op);
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}
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return NULL;
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}
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