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linphone-iphone/coreapi/chat.c

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/***************************************************************************
* chat.c
*
* Sun Jun 5 19:34:18 2005
* Copyright 2005 Simon Morlat
* Email simon dot morlat at linphone dot org
****************************************************************************/
/*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "linphonecore.h"
#include "private.h"
#include "lpconfig.h"
#include "belle-sip/belle-sip.h"
#include <libxml/parser.h>
#include <libxml/xmlwriter.h>
#define COMPOSING_DEFAULT_IDLE_TIMEOUT 15
#define COMPOSING_DEFAULT_REFRESH_TIMEOUT 60
#define COMPOSING_DEFAULT_REMOTE_REFRESH_TIMEOUT 120
static void _linphone_chat_room_send_message(LinphoneChatRoom *cr, LinphoneChatMessage* msg);
#define MULTIPART_BOUNDARY "---------------------------14737809831466499882746641449"
#define FILEPART_HEADER_1 "Content-Disposition: form-data; name=\"File\"; filename=\""
#define FILEPART_HEADER_2 "\"\r\n" \
"Content-Type: "
#define FILEPART_HEADER_3 "\r\n\r\n"
const char *multipart_boundary=MULTIPART_BOUNDARY;
static size_t linphone_chat_message_compute_filepart_header_size(const char *filename, const char *content_type) {
return strlen(FILEPART_HEADER_1)+strlen(filename)+strlen(FILEPART_HEADER_2)+strlen(content_type)+strlen(FILEPART_HEADER_3);
}
static void process_io_error(void *data, const belle_sip_io_error_event_t *event){
LinphoneChatMessage* msg=(LinphoneChatMessage *)data;
msg->cb(msg, LinphoneChatMessageStateNotDelivered, msg->chat_room->lc);
}
static void process_auth_requested(void *data, belle_sip_auth_event_t *event){
printf("We have a auth requested!\n");
}
/**
* Callback called during upload or download of a file from server
* It is just forwarding the call and some parameters to the vtable defined callback
*/
static void linphone_chat_message_file_transfer_on_progress(belle_sip_body_handler_t *bh, belle_sip_message_t *msg, void *data, size_t offset, size_t total){
LinphoneChatMessage* chatMsg=(LinphoneChatMessage *)data;
LinphoneCore *lc = chatMsg->chat_room->lc;
/* call back given by application level */
if (lc->vtable.file_transfer_progress_indication != NULL) {
lc->vtable.file_transfer_progress_indication(lc, chatMsg, chatMsg->file_transfer_information, (size_t)(((double)offset/(double)total)*100.0));
}
return;
}
/**
* Callback called when posting a file to server (following rcs5.1 recommendation)
*
* @param bh the body handler
* @param msg the belle sip message
* @param data the user data associated to the handler, contains the linphoneChatMessage we're working on
* @param offset current position in the input buffer
* @param buffer the ouput buffer we to copy the data to be uploaded
* @param size size in byte of the data requested, as output it will contain the effective copied size
*
*/
static int linphone_chat_message_file_transfer_on_send_body(belle_sip_user_body_handler_t *bh, belle_sip_message_t *msg, void *data, size_t offset, uint8_t *buffer, size_t *size){
LinphoneChatMessage* chatMsg=(LinphoneChatMessage *)data;
LinphoneCore *lc = chatMsg->chat_room->lc;
char *buf = (char *)buffer;
char *content_type=belle_sip_strdup_printf("%s/%s", chatMsg->file_transfer_information->type, chatMsg->file_transfer_information->subtype);
size_t end_of_file=linphone_chat_message_compute_filepart_header_size(chatMsg->file_transfer_information->name, content_type)+chatMsg->file_transfer_information->size;
if (offset==0){
int partlen=linphone_chat_message_compute_filepart_header_size(chatMsg->file_transfer_information->name, content_type);
memcpy(buf,FILEPART_HEADER_1,strlen(FILEPART_HEADER_1));
buf += strlen(FILEPART_HEADER_1);
memcpy(buf,chatMsg->file_transfer_information->name,strlen(chatMsg->file_transfer_information->name));
buf += strlen(chatMsg->file_transfer_information->name);
memcpy(buf,FILEPART_HEADER_2,strlen(FILEPART_HEADER_2));
buf += strlen(FILEPART_HEADER_2);
memcpy(buf,content_type,strlen(content_type));
buf += strlen(content_type);
memcpy(buf,FILEPART_HEADER_3,strlen(FILEPART_HEADER_3));
*size=partlen;
}else if (offset<end_of_file){
/* get data from call back */
lc->vtable.file_transfer_send(lc, chatMsg, chatMsg->file_transfer_information, buf, size);
}
belle_sip_free(content_type);
return BELLE_SIP_CONTINUE;
}
/**
* Callback function called when we have a response from server during a file upload to server (rcs5.1 recommandation)
* Note: The first post is empty and the server shall reply a 204 (No content) message, this will trigger a new post request to the server
* to upoad the file. The server response to this second post is processed by this same function
*
* @param data the user define pointer associated with the request, it contains the linphoneChatMessage we're trying to send
* @param event the response from server
*/
static void linphone_chat_message_process_response_from_post_file(void *data, const belle_http_response_event_t *event){
LinphoneChatMessage* msg=(LinphoneChatMessage *)data;
/* check the answer code */
if (event->response){
int code=belle_http_response_get_status_code(event->response);
if (code == 204) { /* this is the reply to the first post to the server - an empty message */
/* start uploading the file */
belle_http_request_listener_callbacks_t cbs={0};
belle_http_request_listener_t *l;
belle_generic_uri_t *uri;
belle_http_request_t *req;
char *content_type=belle_sip_strdup_printf("%s/%s", msg->file_transfer_information->type, msg->file_transfer_information->subtype);
/* create a user body handler to take care of the file */
belle_sip_user_body_handler_t *first_part_bh=belle_sip_user_body_handler_new(msg->file_transfer_information->size+linphone_chat_message_compute_filepart_header_size(msg->file_transfer_information->name, content_type), NULL, NULL, linphone_chat_message_file_transfer_on_send_body, msg);
/* insert it in a multipart body handler which will manage the boundaries of multipart message */
belle_sip_multipart_body_handler_t *bh=belle_sip_multipart_body_handler_new(linphone_chat_message_file_transfer_on_progress, msg, (belle_sip_body_handler_t *)first_part_bh);
char* ua = ms_strdup_printf("%s/%s", linphone_core_get_user_agent_name(), linphone_core_get_user_agent_version());
belle_sip_free(content_type);
content_type=belle_sip_strdup_printf("multipart/form-data; boundary=%s",multipart_boundary);
uri=belle_generic_uri_parse(msg->chat_room->lc->file_transfer_server);
req=belle_http_request_create("POST",
uri,
belle_sip_header_create("User-Agent",ua),
belle_sip_header_create("Content-type",content_type),
NULL);
ms_free(ua);
belle_sip_free(content_type);
belle_sip_message_set_body_handler(BELLE_SIP_MESSAGE(req),BELLE_SIP_BODY_HANDLER(bh));
cbs.process_response=linphone_chat_message_process_response_from_post_file;
cbs.process_io_error=process_io_error;
cbs.process_auth_requested=process_auth_requested;
l=belle_http_request_listener_create_from_callbacks(&cbs,msg);
belle_http_provider_send_request(msg->chat_room->lc->http_provider,req,l);
}
if (code == 200 ) { /* file has been uplaoded correctly, get server reply and send it */
const char *body = belle_sip_message_get_body((belle_sip_message_t *)event->response);
msg->message = ms_strdup(body);
linphone_content_uninit(msg->file_transfer_information);
ms_free(msg->file_transfer_information);
msg->file_transfer_information = NULL;
msg->content_type = ms_strdup("application/vnd.gsma.rcs-ft-http+xml");
_linphone_chat_room_send_message(msg->chat_room, msg);
}
}
}
static void _linphone_chat_message_destroy(LinphoneChatMessage* msg);
BELLE_SIP_DECLARE_NO_IMPLEMENTED_INTERFACES(LinphoneChatMessage);
BELLE_SIP_INSTANCIATE_VPTR(LinphoneChatMessage,belle_sip_object_t,
(belle_sip_object_destroy_t)_linphone_chat_message_destroy,
NULL, // clone
NULL, // marshal
FALSE
);
/**
* @addtogroup chatroom
* @{
*/
/**
* Inconditionnaly disable incoming chat messages.
* @param lc the core
* @param deny_reason the deny reason (#LinphoneReasonNone has no effect).
**/
void linphone_core_disable_chat(LinphoneCore *lc, LinphoneReason deny_reason){
lc->chat_deny_code=deny_reason;
}
/**
* Enable reception of incoming chat messages.
* By default it is enabled but it can be disabled with linphone_core_disable_chat().
* @param lc the core
**/
void linphone_core_enable_chat(LinphoneCore *lc){
lc->chat_deny_code=LinphoneReasonNone;
}
/**
* Returns whether chat is enabled.
**/
bool_t linphone_core_chat_enabled(const LinphoneCore *lc){
return lc->chat_deny_code!=LinphoneReasonNone;
}
/**
* Returns an array of chat rooms
* @param lc #LinphoneCore object
* @return An array of #LinpĥoneChatRoom
**/
MSList* linphone_core_get_chat_rooms(LinphoneCore *lc) {
return lc->chatrooms;
}
/**
* Create a new chat room for messaging from a sip uri like sip:joe@sip.linphone.org
* @param lc #LinphoneCore object
* @param to destination address for messages
* @return #LinphoneChatRoom where messaging can take place.
*/
LinphoneChatRoom * linphone_core_create_chat_room(LinphoneCore *lc, const char *to){
LinphoneAddress *parsed_url=NULL;
if ((parsed_url=linphone_core_interpret_url(lc,to))!=NULL){
LinphoneChatRoom *cr=ms_new0(LinphoneChatRoom,1);
cr->lc=lc;
cr->peer=linphone_address_as_string(parsed_url);
cr->peer_url=parsed_url;
lc->chatrooms=ms_list_append(lc->chatrooms,(void *)cr);
return cr;
}
return NULL;
}
bool_t linphone_chat_room_matches(LinphoneChatRoom *cr, const LinphoneAddress *from){
return linphone_address_weak_equal(cr->peer_url,from);
}
/**
* Create a new chat room for messaging from a sip uri like sip:joe@sip.linphone.org if not already existing, else return exisiting one
* @param lc #LinphoneCore object
* @param to destination address for messages
* @return #LinphoneChatRoom where messaging can take place.
*/
LinphoneChatRoom* linphone_core_get_or_create_chat_room(LinphoneCore* lc, const char* to) {
LinphoneAddress *to_addr=linphone_core_interpret_url(lc,to);
LinphoneChatRoom *ret;
if (to_addr==NULL){
ms_error("linphone_core_get_or_create_chat_room(): Cannot make a valid address with %s",to);
return NULL;
}
ret=linphone_core_get_chat_room(lc,to_addr);
linphone_address_destroy(to_addr);
if (!ret){
ret=linphone_core_create_chat_room(lc,to);
}
return ret;
}
static void linphone_chat_room_delete_composing_idle_timer(LinphoneChatRoom *cr) {
if (cr->composing_idle_timer) {
sal_cancel_timer(cr->lc->sal, cr->composing_idle_timer);
belle_sip_object_unref(cr->composing_idle_timer);
cr->composing_idle_timer = NULL;
}
}
static void linphone_chat_room_delete_composing_refresh_timer(LinphoneChatRoom *cr) {
if (cr->composing_refresh_timer) {
sal_cancel_timer(cr->lc->sal, cr->composing_refresh_timer);
belle_sip_object_unref(cr->composing_refresh_timer);
cr->composing_refresh_timer = NULL;
}
}
static void linphone_chat_room_delete_remote_composing_refresh_timer(LinphoneChatRoom *cr) {
if (cr->remote_composing_refresh_timer) {
sal_cancel_timer(cr->lc->sal, cr->remote_composing_refresh_timer);
belle_sip_object_unref(cr->remote_composing_refresh_timer);
cr->remote_composing_refresh_timer = NULL;
}
}
/**
* Destroy a LinphoneChatRoom.
* @param cr #LinphoneChatRoom object
*/
void linphone_chat_room_destroy(LinphoneChatRoom *cr){
LinphoneCore *lc=cr->lc;
ms_list_free_with_data(cr->transient_messages, (void (*)(void*))linphone_chat_message_unref);
linphone_chat_room_delete_composing_idle_timer(cr);
linphone_chat_room_delete_composing_refresh_timer(cr);
linphone_chat_room_delete_remote_composing_refresh_timer(cr);
lc->chatrooms=ms_list_remove(lc->chatrooms,(void *) cr);
linphone_address_destroy(cr->peer_url);
ms_free(cr->peer);
ms_free(cr);
}
static void _linphone_chat_room_send_message(LinphoneChatRoom *cr, LinphoneChatMessage* msg){
SalOp *op=NULL;
LinphoneCall *call;
char* content_type;
const char *identity=NULL;
time_t t=time(NULL);
linphone_chat_message_ref(msg);
/* Check if we shall upload a file to a server */
if (msg->file_transfer_information != NULL) {
/* open a transaction with the server and send an empty request(RCS5.1 section 3.5.4.8.3.1) */
belle_http_request_listener_callbacks_t cbs={0};
belle_http_request_listener_t *l;
belle_generic_uri_t *uri;
belle_http_request_t *req;
uri=belle_generic_uri_parse(cr->lc->file_transfer_server);
req=belle_http_request_create("POST",
uri,
NULL,
NULL,
NULL);
cbs.process_response=linphone_chat_message_process_response_from_post_file;
cbs.process_io_error=process_io_error;
cbs.process_auth_requested=process_auth_requested;
l=belle_http_request_listener_create_from_callbacks(&cbs,msg); /* give msg to listener to be able to start the actual file upload when server answer a 204 No content */
belle_http_provider_send_request(cr->lc->http_provider,req,l);
linphone_chat_message_unref(msg);
return;
}
if (lp_config_get_int(cr->lc->config,"sip","chat_use_call_dialogs",0)){
if((call = linphone_core_get_call_by_remote_address(cr->lc,cr->peer))!=NULL){
if (call->state==LinphoneCallConnected ||
call->state==LinphoneCallStreamsRunning ||
call->state==LinphoneCallPaused ||
call->state==LinphoneCallPausing ||
call->state==LinphoneCallPausedByRemote){
ms_message("send SIP message through the existing call.");
op = call->op;
identity=linphone_core_find_best_identity(cr->lc,linphone_call_get_remote_address(call));
}
}
}
msg->time=t;
if (op==NULL){
LinphoneProxyConfig *proxy=linphone_core_lookup_known_proxy(cr->lc,cr->peer_url);
if (proxy){
identity=linphone_proxy_config_get_identity(proxy);
}else identity=linphone_core_get_primary_contact(cr->lc);
/*sending out of calls*/
msg->op = op = sal_op_new(cr->lc->sal);
linphone_configure_op(cr->lc,op,cr->peer_url,msg->custom_headers,lp_config_get_int(cr->lc->config,"sip","chat_msg_with_contact",0));
sal_op_set_user_pointer(op, msg); /*if out of call, directly store msg*/
}
if (msg->external_body_url) {
content_type=ms_strdup_printf("message/external-body; access-type=URL; URL=\"%s\"",msg->external_body_url);
sal_message_send(op,identity,cr->peer,content_type, NULL);
ms_free(content_type);
} else {
if (msg->content_type == NULL) {
sal_text_send(op, identity, cr->peer,msg->message);
} else {
sal_message_send(op, identity, cr->peer, msg->content_type, msg->message);
}
}
msg->dir=LinphoneChatMessageOutgoing;
msg->from=linphone_address_new(identity);
msg->storage_id=linphone_chat_message_store(msg);
// add to transient list
cr->transient_messages = ms_list_append(cr->transient_messages, linphone_chat_message_ref(msg));
if (cr->is_composing == LinphoneIsComposingActive) {
cr->is_composing = LinphoneIsComposingIdle;
}
linphone_chat_room_delete_composing_idle_timer(cr);
linphone_chat_room_delete_composing_refresh_timer(cr);
linphone_chat_message_unref(msg);
}
/**
* Send a message to peer member of this chat room.
* @deprecated linphone_chat_room_send_message2() gives more control on the message expedition.
* @param cr #LinphoneChatRoom object
* @param msg message to be sent
*/
void linphone_chat_room_send_message(LinphoneChatRoom *cr, const char *msg) {
_linphone_chat_room_send_message(cr,linphone_chat_room_create_message(cr,msg));
}
void linphone_chat_room_message_received(LinphoneChatRoom *cr, LinphoneCore *lc, LinphoneChatMessage *msg){
if (msg->message)
//legacy API
if (lc->vtable.text_received!=NULL) lc->vtable.text_received(lc, cr, msg->from, msg->message);
if (lc->vtable.message_received!=NULL) lc->vtable.message_received(lc, cr,msg);
if (cr->lc->vtable.is_composing_received != NULL) {
cr->remote_is_composing = LinphoneIsComposingIdle;
cr->lc->vtable.is_composing_received(cr->lc, cr);
}
}
/**
* Retrieve an existing chat room whose peer is the supplied address, if exists.
* @param lc the linphone core
* @param addr a linphone address.
* @returns the matching chatroom, or NULL if no such chatroom exists.
**/
LinphoneChatRoom *linphone_core_get_chat_room(LinphoneCore *lc, const LinphoneAddress *addr){
LinphoneChatRoom *cr=NULL;
MSList *elem;
for(elem=lc->chatrooms;elem!=NULL;elem=ms_list_next(elem)){
cr=(LinphoneChatRoom*)elem->data;
if (linphone_chat_room_matches(cr,addr)){
break;
}
cr=NULL;
}
return cr;
}
void linphone_core_message_received(LinphoneCore *lc, SalOp *op, const SalMessage *sal_msg){
LinphoneChatRoom *cr=NULL;
LinphoneAddress *addr;
char *cleanfrom;
char *from;
LinphoneChatMessage* msg;
const SalCustomHeader *ch;
addr=linphone_address_new(sal_msg->from);
linphone_address_clean(addr);
cr=linphone_core_get_chat_room(lc,addr);
cleanfrom=linphone_address_as_string(addr);
from=linphone_address_as_string_uri_only(addr);
if (cr==NULL){
/* create a new chat room */
cr=linphone_core_create_chat_room(lc,cleanfrom);
}
if (sal_msg->content_type != NULL) { /* content_type field is, for now, used only for rcs file transfer bu twe shall strcmp it with "application/vnd.gsma.rcs-ft-http+xml" */
xmlChar *file_url = NULL;
xmlDocPtr xmlMessageBody;
xmlNodePtr cur;
msg = linphone_chat_room_create_message(cr, NULL); /* create a message with empty body */
msg->content_type = ms_strdup(sal_msg->content_type); /* add the content_type "application/vnd.gsma.rcs-ft-http+xml" */
msg->file_transfer_information = (LinphoneContent *)malloc(sizeof(LinphoneContent));
memset(msg->file_transfer_information, 0, sizeof(*(msg->file_transfer_information)));
/* parse the message body to get all informations from it */
xmlMessageBody = xmlParseDoc((const xmlChar *)sal_msg->text);
cur = xmlDocGetRootElement(xmlMessageBody);
if (cur != NULL) {
cur = cur->xmlChildrenNode;
while (cur!=NULL) {
if (!xmlStrcmp(cur->name, (const xmlChar *)"file-info")) { /* we found a file info node, check it has a type="file" attribute */
xmlChar *typeAttribute = xmlGetProp(cur, (const xmlChar *)"type");
if(!xmlStrcmp(typeAttribute, (const xmlChar *)"file")) { /* this is the node we are looking for */
cur = cur->xmlChildrenNode; /* now loop on the content of the file-info node */
while (cur!=NULL) {
if (!xmlStrcmp(cur->name, (const xmlChar *)"file-size")) {
xmlChar *fileSizeString = xmlNodeListGetString(xmlMessageBody, cur->xmlChildrenNode, 1);
msg->file_transfer_information->size = strtol((const char*)fileSizeString, NULL, 10);
xmlFree(fileSizeString);
}
if (!xmlStrcmp(cur->name, (const xmlChar *)"file-name")) {
msg->file_transfer_information->name = (char *)xmlNodeListGetString(xmlMessageBody, cur->xmlChildrenNode, 1);
}
if (!xmlStrcmp(cur->name, (const xmlChar *)"content-type")) {
xmlChar *contentType = xmlNodeListGetString(xmlMessageBody, cur->xmlChildrenNode, 1);
int contentTypeIndex = 0;
while (contentType[contentTypeIndex]!='/' && contentType[contentTypeIndex]!='\0') {
contentTypeIndex++;
}
msg->file_transfer_information->type = ms_strndup((char *)contentType, contentTypeIndex);
msg->file_transfer_information->subtype = ms_strdup(((char *)contentType+contentTypeIndex+1));
xmlFree(contentType);
}
if (!xmlStrcmp(cur->name, (const xmlChar *)"data")) {
file_url = xmlGetProp(cur, (const xmlChar *)"url");
}
cur=cur->next;
}
xmlFree(typeAttribute);
break;
}
xmlFree(typeAttribute);
}
cur = cur->next;
}
}
xmlFreeDoc(xmlMessageBody);
linphone_chat_message_set_external_body_url(msg, (const char *)file_url);
xmlFree(file_url);
} else { /* message is not rcs file transfer, create it with provided sal_msg->text as ->message */
msg = linphone_chat_room_create_message(cr, sal_msg->text);
}
linphone_chat_message_set_from(msg, cr->peer_url);
{
LinphoneAddress *to;
to=sal_op_get_to(op) ? linphone_address_new(sal_op_get_to(op)) : linphone_address_new(linphone_core_get_identity(lc));
msg->to=to;
}
msg->time=sal_msg->time;
msg->state=LinphoneChatMessageStateDelivered;
msg->is_read=FALSE;
msg->dir=LinphoneChatMessageIncoming;
ch=sal_op_get_recv_custom_header(op);
if (ch) msg->custom_headers=sal_custom_header_clone(ch);
if (sal_msg->url) {
linphone_chat_message_set_external_body_url(msg, sal_msg->url);
}
linphone_address_destroy(addr);
msg->storage_id=linphone_chat_message_store(msg);
linphone_chat_room_message_received(cr,lc,msg);
ms_free(cleanfrom);
ms_free(from);
}
static int linphone_chat_room_remote_refresh_composing_expired(void *data, unsigned int revents) {
LinphoneChatRoom *cr = (LinphoneChatRoom *)data;
belle_sip_object_unref(cr->remote_composing_refresh_timer);
cr->remote_composing_refresh_timer = NULL;
cr->remote_is_composing = LinphoneIsComposingIdle;
if (cr->lc->vtable.is_composing_received != NULL)
cr->lc->vtable.is_composing_received(cr->lc, cr);
return BELLE_SIP_STOP;
}
static const char *iscomposing_prefix = "/xsi:isComposing";
static void process_im_is_composing_notification(LinphoneChatRoom *cr, xmlparsing_context_t *xml_ctx) {
char xpath_str[MAX_XPATH_LENGTH];
xmlXPathObjectPtr iscomposing_object;
const char *state_str = NULL;
const char *refresh_str = NULL;
int refresh_duration = lp_config_get_int(cr->lc->config, "sip", "composing_remote_refresh_timeout", COMPOSING_DEFAULT_REMOTE_REFRESH_TIMEOUT);
int i;
LinphoneIsComposingState state = LinphoneIsComposingIdle;
if (linphone_create_xml_xpath_context(xml_ctx) < 0) return;
xmlXPathRegisterNs(xml_ctx->xpath_ctx, (const xmlChar *)"xsi", (const xmlChar *)"urn:ietf:params:xml:ns:im-iscomposing");
iscomposing_object = linphone_get_xml_xpath_object_for_node_list(xml_ctx, iscomposing_prefix);
if ((iscomposing_object != NULL) && (iscomposing_object->nodesetval != NULL)) {
for (i = 1; i <= iscomposing_object->nodesetval->nodeNr; i++) {
snprintf(xpath_str, sizeof(xpath_str), "%s[%i]/xsi:state", iscomposing_prefix, i);
state_str = linphone_get_xml_text_content(xml_ctx, xpath_str);
if (state_str == NULL) continue;
snprintf(xpath_str, sizeof(xpath_str), "%s[%i]/xsi:refresh", iscomposing_prefix, i);
refresh_str = linphone_get_xml_text_content(xml_ctx, xpath_str);
}
}
if (state_str != NULL) {
if (strcmp(state_str, "active") == 0) {
state = LinphoneIsComposingActive;
if (refresh_str != NULL) {
refresh_duration = atoi(refresh_str);
}
if (!cr->remote_composing_refresh_timer) {
cr->remote_composing_refresh_timer = sal_create_timer(cr->lc->sal, linphone_chat_room_remote_refresh_composing_expired, cr, refresh_duration * 1000, "composing remote refresh timeout");
} else {
belle_sip_source_set_timeout(cr->remote_composing_refresh_timer, refresh_duration * 1000);
}
} else {
linphone_chat_room_delete_remote_composing_refresh_timer(cr);
}
cr->remote_is_composing = state;
if (cr->lc->vtable.is_composing_received != NULL)
cr->lc->vtable.is_composing_received(cr->lc, cr);
}
}
static void linphone_chat_room_notify_is_composing(LinphoneChatRoom *cr, const char *text) {
xmlparsing_context_t *xml_ctx = linphone_xmlparsing_context_new();
xmlSetGenericErrorFunc(xml_ctx, linphone_xmlparsing_genericxml_error);
xml_ctx->doc = xmlReadDoc((const unsigned char*)text, 0, NULL, 0);
if (xml_ctx->doc != NULL) {
process_im_is_composing_notification(cr, xml_ctx);
} else {
ms_warning("Wrongly formatted presence XML: %s", xml_ctx->errorBuffer);
}
linphone_xmlparsing_context_destroy(xml_ctx);
}
void linphone_core_is_composing_received(LinphoneCore *lc, SalOp *op, const SalIsComposing *is_composing) {
LinphoneChatRoom *cr = linphone_core_get_or_create_chat_room(lc, is_composing->from);
if (cr != NULL) {
linphone_chat_room_notify_is_composing(cr, is_composing->text);
}
}
bool_t linphone_chat_room_is_remote_composing(const LinphoneChatRoom *cr) {
return (cr->remote_is_composing == LinphoneIsComposingActive) ? TRUE : FALSE;
}
/**
* Returns back pointer to LinphoneCore object.
* @deprecated use linphone_chat_room_get_core()
**/
LinphoneCore* linphone_chat_room_get_lc(LinphoneChatRoom *cr){
return cr->lc;
}
/**
* Returns back pointer to LinphoneCore object.
**/
LinphoneCore* linphone_chat_room_get_core(LinphoneChatRoom *cr){
return cr->lc;
}
/**
* Assign a user pointer to the chat room.
**/
void linphone_chat_room_set_user_data(LinphoneChatRoom *cr, void * ud){
cr->user_data=ud;
}
/**
* Retrieve the user pointer associated with the chat room.
**/
void * linphone_chat_room_get_user_data(LinphoneChatRoom *cr){
return cr->user_data;
}
/**
* get peer address \link linphone_core_create_chat_room() associated to \endlink this #LinphoneChatRoom
* @param cr #LinphoneChatRoom object
* @return #LinphoneAddress peer address
*/
const LinphoneAddress* linphone_chat_room_get_peer_address(LinphoneChatRoom *cr) {
return cr->peer_url;
}
/**
* Create a message attached to a dedicated chat room;
* @param cr the chat room.
* @param message text message, NULL if absent.
* @return a new #LinphoneChatMessage
*/
LinphoneChatMessage* linphone_chat_room_create_message(LinphoneChatRoom *cr, const char* message) {
LinphoneChatMessage* msg = belle_sip_object_new(LinphoneChatMessage);
msg->chat_room=(LinphoneChatRoom*)cr;
msg->message=message?ms_strdup(message):NULL;
msg->is_read=TRUE;
msg->content_type = NULL; /* this property is used only when transfering file */
msg->file_transfer_information = NULL; /* this property is used only when transfering file */
return msg;
}
/**
* Create a message attached to a dedicated chat room;
* @param cr the chat room.
* @param message text message, NULL if absent.
* @param external_body_url the URL given in external body or NULL.
* @param state the LinphoneChatMessage.State of the message.
* @param time the time_t at which the message has been received/sent.
* @param is_read TRUE if the message should be flagged as read, FALSE otherwise.
* @param is_incoming TRUE if the message has been received, FALSE otherwise.
* @return a new #LinphoneChatMessage
*/
LinphoneChatMessage* linphone_chat_room_create_message_2(
LinphoneChatRoom *cr, const char* message, const char* external_body_url,
LinphoneChatMessageState state, time_t time, bool_t is_read, bool_t is_incoming) {
LinphoneCore *lc=linphone_chat_room_get_lc(cr);
LinphoneChatMessage* msg = belle_sip_object_new(LinphoneChatMessage);
msg->chat_room=(LinphoneChatRoom*)cr;
msg->message=message?ms_strdup(message):NULL;
msg->external_body_url=external_body_url?ms_strdup(external_body_url):NULL;
msg->time=time;
msg->state=state;
msg->is_read=is_read;
msg->content_type = NULL; /* this property is used only when transfering file */
msg->file_transfer_information = NULL; /* this property is used only when transfering file */
if (is_incoming) {
msg->dir=LinphoneChatMessageIncoming;
linphone_chat_message_set_from(msg, linphone_chat_room_get_peer_address(cr));
linphone_chat_message_set_to(msg, linphone_address_new(linphone_core_get_identity(lc)));
} else {
msg->dir=LinphoneChatMessageOutgoing;
linphone_chat_message_set_to(msg, linphone_chat_room_get_peer_address(cr));
linphone_chat_message_set_from(msg, linphone_address_new(linphone_core_get_identity(lc)));
}
return msg;
}
/**
* Send a message to peer member of this chat room.
* @param cr #LinphoneChatRoom object
* @param msg #LinphoneChatMessage message to be sent
* @param status_cb LinphoneChatMessageStateChangeCb status callback invoked when message is delivered or could not be delivered. May be NULL
* @param ud user data for the status cb.
* @note The LinphoneChatMessage must not be destroyed until the the callback is called.
*/
void linphone_chat_room_send_message2(LinphoneChatRoom *cr, LinphoneChatMessage* msg,LinphoneChatMessageStateChangedCb status_cb, void* ud) {
msg->cb=status_cb;
msg->cb_ud=ud;
msg->state=LinphoneChatMessageStateInProgress;
_linphone_chat_room_send_message(cr, msg);
}
static char * linphone_chat_room_create_is_composing_xml(LinphoneChatRoom *cr) {
xmlBufferPtr buf;
xmlTextWriterPtr writer;
int err;
char *content = NULL;
buf = xmlBufferCreate();
if (buf == NULL) {
ms_error("Error creating the XML buffer");
return content;
}
writer = xmlNewTextWriterMemory(buf, 0);
if (writer == NULL) {
ms_error("Error creating the XML writer");
return content;
}
err = xmlTextWriterStartDocument(writer, "1.0", "UTF-8", NULL);
if (err >= 0) {
err = xmlTextWriterStartElementNS(writer, NULL, (const xmlChar *)"isComposing", (const xmlChar *)"urn:ietf:params:xml:ns:im-iscomposing");
}
if (err >= 0) {
err = xmlTextWriterWriteAttributeNS(writer, (const xmlChar *)"xmlns", (const xmlChar *)"xsi",
NULL, (const xmlChar *)"http://www.w3.org/2001/XMLSchema-instance");
}
if (err >= 0) {
err = xmlTextWriterWriteAttributeNS(writer, (const xmlChar *)"xsi", (const xmlChar *)"schemaLocation",
NULL, (const xmlChar *)"urn:ietf:params:xml:ns:im-composing iscomposing.xsd");
}
if (err >= 0) {
err = xmlTextWriterWriteElement(writer, (const xmlChar *)"state",
(cr->is_composing == LinphoneIsComposingActive) ? (const xmlChar *)"active" : (const xmlChar *)"idle");
}
if ((err >= 0) && (cr->is_composing == LinphoneIsComposingActive)) {
char refresh_str[4] = { 0 };
int refresh_timeout = lp_config_get_int(cr->lc->config, "sip", "composing_refresh_timeout", COMPOSING_DEFAULT_REFRESH_TIMEOUT);
snprintf(refresh_str, sizeof(refresh_str), "%u", refresh_timeout);
err = xmlTextWriterWriteElement(writer, (const xmlChar *)"refresh", (const xmlChar *)refresh_str);
}
if (err >= 0) {
/* Close the "isComposing" element. */
err = xmlTextWriterEndElement(writer);
}
if (err >= 0) {
err = xmlTextWriterEndDocument(writer);
}
if (err > 0) {
/* xmlTextWriterEndDocument returns the size of the content. */
content = ms_strdup((char *)buf->content);
}
xmlFreeTextWriter(writer);
xmlBufferFree(buf);
return content;
}
static void linphone_chat_room_send_is_composing_notification(LinphoneChatRoom *cr) {
SalOp *op = NULL;
LinphoneCall *call;
const char *identity = NULL;
char *content = NULL;
if (lp_config_get_int(cr->lc->config, "sip", "chat_use_call_dialogs", 0)) {
if ((call = linphone_core_get_call_by_remote_address(cr->lc, cr->peer)) != NULL) {
if (call->state == LinphoneCallConnected ||
call->state == LinphoneCallStreamsRunning ||
call->state == LinphoneCallPaused ||
call->state == LinphoneCallPausing ||
call->state == LinphoneCallPausedByRemote) {
ms_message("send SIP message through the existing call.");
op = call->op;
identity = linphone_core_find_best_identity(cr->lc, linphone_call_get_remote_address(call));
}
}
}
if (op == NULL) {
LinphoneProxyConfig *proxy = linphone_core_lookup_known_proxy(cr->lc, cr->peer_url);
if (proxy)
identity = linphone_proxy_config_get_identity(proxy);
else
identity = linphone_core_get_primary_contact(cr->lc);
/*sending out of calls*/
op = sal_op_new(cr->lc->sal);
linphone_configure_op(cr->lc, op, cr->peer_url, NULL, lp_config_get_int(cr->lc->config, "sip", "chat_msg_with_contact", 0));
}
content = linphone_chat_room_create_is_composing_xml(cr);
if (content != NULL) {
sal_message_send(op, identity, cr->peer, "application/im-iscomposing+xml", content);
ms_free(content);
}
}
static int linphone_chat_room_stop_composing(void *data, unsigned int revents) {
LinphoneChatRoom *cr = (LinphoneChatRoom *)data;
cr->is_composing = LinphoneIsComposingIdle;
linphone_chat_room_send_is_composing_notification(cr);
linphone_chat_room_delete_composing_refresh_timer(cr);
belle_sip_object_unref(cr->composing_idle_timer);
cr->composing_idle_timer = NULL;
return BELLE_SIP_STOP;
}
static int linphone_chat_room_refresh_composing(void *data, unsigned int revents) {
LinphoneChatRoom *cr = (LinphoneChatRoom *)data;
linphone_chat_room_send_is_composing_notification(cr);
return BELLE_SIP_CONTINUE;
}
void linphone_chat_room_compose(LinphoneChatRoom *cr) {
int idle_timeout = lp_config_get_int(cr->lc->config, "sip", "composing_idle_timeout", COMPOSING_DEFAULT_IDLE_TIMEOUT);
int refresh_timeout = lp_config_get_int(cr->lc->config, "sip", "composing_refresh_timeout", COMPOSING_DEFAULT_REFRESH_TIMEOUT);
if (cr->is_composing == LinphoneIsComposingIdle) {
cr->is_composing = LinphoneIsComposingActive;
linphone_chat_room_send_is_composing_notification(cr);
if (!cr->composing_refresh_timer) {
cr->composing_refresh_timer = sal_create_timer(cr->lc->sal, linphone_chat_room_refresh_composing, cr, refresh_timeout * 1000, "composing refresh timeout");
} else {
belle_sip_source_set_timeout(cr->composing_refresh_timer, refresh_timeout * 1000);
}
if (!cr->composing_idle_timer) {
cr->composing_idle_timer = sal_create_timer(cr->lc->sal, linphone_chat_room_stop_composing, cr, idle_timeout * 1000, "composing idle timeout");
}
}
belle_sip_source_set_timeout(cr->composing_idle_timer, idle_timeout * 1000);
}
/**
* Returns a #LinphoneChatMessageState as a string.
*/
const char* linphone_chat_message_state_to_string(const LinphoneChatMessageState state) {
switch (state) {
case LinphoneChatMessageStateIdle:return "LinphoneChatMessageStateIdle";
case LinphoneChatMessageStateInProgress:return "LinphoneChatMessageStateInProgress";
case LinphoneChatMessageStateDelivered:return "LinphoneChatMessageStateDelivered";
case LinphoneChatMessageStateNotDelivered:return "LinphoneChatMessageStateNotDelivered";
default: return "Unknown state";
}
}
/**
* Returns the chatroom this message belongs to.
**/
LinphoneChatRoom* linphone_chat_message_get_chat_room(LinphoneChatMessage *msg){
return msg->chat_room;
}
/**
* Returns the peer (remote) address for the message.
**/
const LinphoneAddress* linphone_chat_message_get_peer_address(LinphoneChatMessage *msg) {
return linphone_chat_room_get_peer_address(msg->chat_room);
}
/**
*User pointer set function
*/
void linphone_chat_message_set_user_data(LinphoneChatMessage* message,void* ud) {
message->message_userdata=ud;
}
/**
* User pointer get function
*/
void* linphone_chat_message_get_user_data(const LinphoneChatMessage* message) {
return message->message_userdata;
}
/**
* Linphone message can carry external body as defined by rfc2017
* @param message #LinphoneChatMessage
* @return external body url or NULL if not present.
*/
const char* linphone_chat_message_get_external_body_url(const LinphoneChatMessage* message) {
return message->external_body_url;
}
/**
* Linphone message can carry external body as defined by rfc2017
*
* @param message a LinphoneChatMessage
* @param url ex: access-type=URL; URL="http://www.foo.com/file"
*/
void linphone_chat_message_set_external_body_url(LinphoneChatMessage* message,const char* url) {
if (message->external_body_url) {
ms_free(message->external_body_url);
}
message->external_body_url=url?ms_strdup(url):NULL;
}
/**
* Linphone message has an app-specific field that can store a text. The application might want
* to use it for keeping data over restarts, like thumbnail image path.
* @param message #LinphoneChatMessage
* @return the application-specific data or NULL if none has been stored.
*/
const char* linphone_chat_message_get_appdata(const LinphoneChatMessage* message){
return message->appdata;
}
/**
* Linphone message has an app-specific field that can store a text. The application might want
* to use it for keeping data over restarts, like thumbnail image path.
*
* Invoking this function will attempt to update the message storage to reflect the changeif it is
* enabled.
*
* @param message #LinphoneChatMessage
* @param data the data to store into the message
*/
void linphone_chat_message_set_appdata(LinphoneChatMessage* message, const char* data){
if( message->appdata ){
ms_free(message->appdata);
}
message->appdata = data? ms_strdup(data) : NULL;
linphone_chat_message_store_appdata(message);
}
/**
* Get the file_transfer_information (used by call backs to recover informations during a rcs file transfer)
*
* @param message #LinphoneChatMessage
* @return a pointer to the LinphoneContent structure or NULL if not present.
*/
const LinphoneContent *linphone_chat_message_get_file_transfer_information(const LinphoneChatMessage*message) {
return message->file_transfer_information;
}
static void on_recv_body(belle_sip_user_body_handler_t *bh, belle_sip_message_t *msg, void *data, size_t offset, const uint8_t *buffer, size_t size){
//printf("Receive %ld bytes\n\n%s\n\n", size, (char *)buffer);
LinphoneChatMessage* chatMsg=(LinphoneChatMessage *)data;
LinphoneCore *lc = chatMsg->chat_room->lc;
/* call back given by application level */
if (lc->vtable.file_transfer_received != NULL) {
lc->vtable.file_transfer_received(lc, chatMsg, chatMsg->file_transfer_information, (char *)buffer, size);
}
return;
/* feed the callback with the received data */
}
static void linphone_chat_process_response_headers_from_get_file(void *data, const belle_http_response_event_t *event){
if (event->response){
/*we are receiving a response, set a specific body handler to acquire the response.
* if not done, belle-sip will create a memory body handler, the default*/
LinphoneChatMessage *message=(LinphoneChatMessage *)belle_sip_object_data_get(BELLE_SIP_OBJECT(event->request),"message");
belle_sip_message_set_body_handler(
(belle_sip_message_t*)event->response,
(belle_sip_body_handler_t*)belle_sip_user_body_handler_new(message->file_transfer_information->size, linphone_chat_message_file_transfer_on_progress,on_recv_body,NULL,message)
);
}
}
static void linphone_chat_process_response_from_get_file(void *data, const belle_http_response_event_t *event){
//LinphoneChatMessage* msg=(LinphoneChatMessage *)data;
/* check the answer code */
if (event->response){
int code=belle_http_response_get_status_code(event->response);
if (code==200) {
LinphoneChatMessage* chatMsg=(LinphoneChatMessage *)data;
LinphoneCore *lc = chatMsg->chat_room->lc;
/* file downloaded succesfully, call again the callback with size at zero */
if (lc->vtable.file_transfer_received != NULL) {
lc->vtable.file_transfer_received(lc, chatMsg, chatMsg->file_transfer_information, NULL, 0);
}
}
}
}
/**
* Start the download of the file from remote server
*
* @param message #LinphoneChatMessage
*/
void linphone_chat_message_start_file_download(const LinphoneChatMessage *message) {
belle_http_request_listener_callbacks_t cbs={0};
belle_http_request_listener_t *l;
belle_generic_uri_t *uri;
belle_http_request_t *req;
const char *url=message->external_body_url;
char* ua = ms_strdup_printf("%s/%s", linphone_core_get_user_agent_name(), linphone_core_get_user_agent_version());
uri=belle_generic_uri_parse(url);
req=belle_http_request_create("GET",
uri,
belle_sip_header_create("User-Agent",ua),
NULL);
ms_free(ua);
cbs.process_response_headers=linphone_chat_process_response_headers_from_get_file;
cbs.process_response=linphone_chat_process_response_from_get_file;
cbs.process_io_error=process_io_error;
cbs.process_auth_requested=process_auth_requested;
l=belle_http_request_listener_create_from_callbacks(&cbs, (void *)message);
belle_sip_object_data_set(BELLE_SIP_OBJECT(req),"message",(void *)message,NULL);
belle_http_provider_send_request(message->chat_room->lc->http_provider,req,l);
}
/**
* Set origin of the message
*@param message #LinphoneChatMessage obj
*@param from #LinphoneAddress origin of this message (copied)
*/
void linphone_chat_message_set_from(LinphoneChatMessage* message, const LinphoneAddress* from) {
if(message->from) linphone_address_destroy(message->from);
message->from=linphone_address_clone(from);
}
/**
* Get origin of the message
*@param message #LinphoneChatMessage obj
*@return #LinphoneAddress
*/
const LinphoneAddress* linphone_chat_message_get_from(const LinphoneChatMessage* message) {
return message->from;
}
/**
* Set destination of the message
*@param message #LinphoneChatMessage obj
*@param to #LinphoneAddress destination of this message (copied)
*/
void linphone_chat_message_set_to(LinphoneChatMessage* message, const LinphoneAddress* to) {
if(message->to) linphone_address_destroy(message->to);
message->to=linphone_address_clone(to);
}
/**
* Get destination of the message
*@param message #LinphoneChatMessage obj
*@return #LinphoneAddress
*/
const LinphoneAddress* linphone_chat_message_get_to(const LinphoneChatMessage* message){
if (message->to) return message->to;
if (message->dir==LinphoneChatMessageOutgoing){
return message->chat_room->peer_url;
}
return NULL;
}
/**
* Returns the origin address of a message if it was a outgoing message, or the destination address if it was an incoming message.
*@param message #LinphoneChatMessage obj
*@return #LinphoneAddress
*/
LinphoneAddress *linphone_chat_message_get_local_address(const LinphoneChatMessage* message){
return message->dir==LinphoneChatMessageOutgoing ? message->from : message->to;
}
/**
* Get the time the message was sent.
*/
time_t linphone_chat_message_get_time(const LinphoneChatMessage* message) {
return message->time;
}
/**
* Get the state of the message
*@param message #LinphoneChatMessage obj
*@return #LinphoneChatMessageState
*/
LinphoneChatMessageState linphone_chat_message_get_state(const LinphoneChatMessage* message) {
return message->state;
}
/**
* Get text part of this message
* @return text or NULL if no text.
*/
const char * linphone_chat_message_get_text(const LinphoneChatMessage* message) {
return message->message;
}
/**
* Add custom headers to the message.
* @param message the message
* @param header_name name of the header_name
* @param header_value header value
**/
void linphone_chat_message_add_custom_header(LinphoneChatMessage* message, const char *header_name, const char *header_value){
message->custom_headers=sal_custom_header_append(message->custom_headers,header_name,header_value);
}
/**
* Retrieve a custom header value given its name.
* @param message the message
* @param header_name header name searched
**/
const char * linphone_chat_message_get_custom_header(LinphoneChatMessage* message, const char *header_name){
return sal_custom_header_find(message->custom_headers,header_name);
}
/**
* Returns TRUE if the message has been read, otherwise returns FALSE.
* @param message the message
**/
bool_t linphone_chat_message_is_read(LinphoneChatMessage* message) {
return message->is_read;
}
/**
* Returns TRUE if the message has been sent, returns FALSE if the message has been received.
* @param message the message
**/
bool_t linphone_chat_message_is_outgoing(LinphoneChatMessage* message) {
return message->dir == LinphoneChatMessageOutgoing;
}
/**
* Returns the id used to identify this message in the storage database
* @param message the message
* @return the id
*/
unsigned int linphone_chat_message_get_storage_id(LinphoneChatMessage* message) {
return message->storage_id;
}
/**
* Duplicate a LinphoneChatMessage
**/
LinphoneChatMessage* linphone_chat_message_clone(const LinphoneChatMessage* msg) {
/*struct _LinphoneChatMessage {
char* message;
LinphoneChatRoom* chat_room;
LinphoneChatMessageStateChangeCb cb;
void* cb_ud;
void* message_userdata;
char* external_body_url;
LinphoneAddress* from;
time_t time;
SalCustomHeader *custom_headers;
LinphoneChatMessageState state;
};*/
LinphoneChatMessage* new_message = linphone_chat_room_create_message(msg->chat_room,msg->message);
if (msg->external_body_url) new_message->external_body_url=ms_strdup(msg->external_body_url);
if (msg->appdata) new_message->appdata = ms_strdup(msg->appdata);
new_message->cb=msg->cb;
new_message->cb_ud=msg->cb_ud;
new_message->message_userdata=msg->message_userdata;
new_message->cb=msg->cb;
new_message->time=msg->time;
new_message->state=msg->state;
new_message->storage_id=msg->storage_id;
if (msg->from) new_message->from=linphone_address_clone(msg->from);
return new_message;
}
/**
* Destroys a LinphoneChatMessage.
**/
void linphone_chat_message_destroy(LinphoneChatMessage* msg){
belle_sip_object_unref(msg);
}
/**
* Destroys a LinphoneChatMessage.
**/
static void _linphone_chat_message_destroy(LinphoneChatMessage* msg) {
if (msg->op) sal_op_release(msg->op);
if (msg->message) ms_free(msg->message);
if (msg->external_body_url) ms_free(msg->external_body_url);
if (msg->appdata) ms_free(msg->appdata);
if (msg->from) linphone_address_destroy(msg->from);
if (msg->to) linphone_address_destroy(msg->to);
if (msg->custom_headers) sal_custom_header_free(msg->custom_headers);
if (msg->content_type) ms_free(msg->content_type);
if (msg->file_transfer_information) {
linphone_content_uninit(msg->file_transfer_information);
ms_free(msg->file_transfer_information);
}
}
/**
* Acquire a reference to the chat message.
* @param msg the chat message
* @return the same chat message
**/
LinphoneChatMessage * linphone_chat_message_ref(LinphoneChatMessage *msg){
belle_sip_object_ref(msg);
return msg;
}
/**
* Release reference to the chat message.
* @param msg the chat message.
**/
void linphone_chat_message_unref(LinphoneChatMessage *msg){
belle_sip_object_unref(msg);
}
/**
* Get full details about delivery error of a chat message.
* @param msg a LinphoneChatMessage
* @return a LinphoneErrorInfo describing the details.
**/
const LinphoneErrorInfo *linphone_chat_message_get_error_info(const LinphoneChatMessage *msg){
return linphone_error_info_from_sal_op(msg->op);
}
LinphoneReason linphone_chat_message_get_reason(LinphoneChatMessage* msg) {
return linphone_error_info_get_reason(linphone_chat_message_get_error_info(msg));
}
/**
* Create a message attached to a dedicated chat room with a particular content. Use #linphone_chat_room_send_message2 to initiate the transfer
* @param cr the chat room.
* @param a #LinphoneContent initial content. #LinphoneCoreVTable.file_transfer_send is invoked later to notify file transfer progress and collect next chunk of the message if #LinphoneContent.data is NULL.
* @return a new #LinphoneChatMessage
*/
LinphoneChatMessage* linphone_chat_room_create_file_transfer_message(LinphoneChatRoom *cr, LinphoneContent* initial_content) {
LinphoneChatMessage* msg = belle_sip_object_new(LinphoneChatMessage);
msg->chat_room=(LinphoneChatRoom*)cr;
msg->message = NULL;
msg->file_transfer_information = (LinphoneContent *)malloc(sizeof(LinphoneContent));
memset(msg->file_transfer_information, 0, sizeof(LinphoneContent));
linphone_content_copy(msg->file_transfer_information, initial_content);
msg->dir=LinphoneChatMessageOutgoing;
linphone_chat_message_set_to(msg, linphone_chat_room_get_peer_address(cr));
linphone_chat_message_set_from(msg, linphone_address_new(linphone_core_get_identity(cr->lc)));
msg->content_type=NULL; /* this will be set to application/vnd.gsma.rcs-ft-http+xml when we will transfer the xml reply from server to the peers */
return msg;
}
/**
* @}
*/
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