int imc_handle_destroy(struct sip_msg* msg, imc_cmd_t *cmd,
struct sip_uri *src, struct sip_uri *dst)
{
imc_room_p room = 0;
imc_member_p member = 0;
str room_name;
str body;
/* distrugere camera */
room_name = cmd->param[0].s?cmd->param[0]:dst->user;
room= imc_get_room(&room_name, &dst->host);
if(room== NULL || (room->flags&IMC_ROOM_DELETED))
{
LM_ERR("room [%.*s] does not exist!\n", room_name.len, room_name.s);
goto error;
}
/* verify is the user is a member of the room*/
member= imc_get_member(room, &src->user, &src->host);
if(member== NULL)
{
LM_ERR("user [%.*s] is not a member of room [%.*s]!\n",
src->user.len, src->user.s, room_name.len, room_name.s);
goto error;
}
if(!(member->flags & IMC_MEMBER_OWNER))
{
LM_ERR("user [%.*s] is not owner of room [%.*s] -- cannot destroy it"
"!\n", src->user.len, src->user.s, room_name.len, room_name.s);
goto error;
}
room->flags |= IMC_ROOM_DELETED;
body.s = imc_body_buf;
strcpy(body.s, "The room has been destroyed");
body.len = strlen(body.s);
/* braodcast message */
imc_room_broadcast(room, &all_hdrs, &body);
imc_release_room(room);
LM_DBG("deleting room\n");
imc_del_room(&room_name, &dst->host);
return 0;
error:
if(room!=NULL)
imc_release_room(room);
return -1;
}
int imc_handle_message(struct sip_msg* msg, str *msgbody,
struct sip_uri *src, struct sip_uri *dst)
{
imc_room_p room = 0;
imc_member_p member = 0;
str body;
room = imc_get_room(&dst->user, &dst->host);
if(room==NULL || (room->flags&IMC_ROOM_DELETED))
{
LM_ERR("room [%.*s] does not exist!\n", dst->user.len, dst->user.s);
goto error;
}
member= imc_get_member(room, &src->user, &src->host);
if(member== NULL || (member->flags & IMC_MEMBER_INVITED))
{
LM_ERR("user [%.*s] has no rights to send messages in room [%.*s]!\n",
src->user.len, src->user.s, dst->user.len, dst->user.s);
goto error;
}
LM_DBG("broadcast to room [%.*s]\n", room->uri.len, room->uri.s);
body.s = imc_body_buf;
body.len = msgbody->len + member->uri.len /* -4 (sip:) +4 (<>: ) */;
if(body.len>=IMC_BUF_SIZE)
{
LM_ERR("buffer overflow [%.*s]\n", msgbody->len, msgbody->s);
goto error;
}
body.s[0] = '<';
memcpy(body.s + 1, member->uri.s + 4, member->uri.len - 4);
memcpy(body.s + 1 + member->uri.len - 4, ">: ", 3);
memcpy(body.s + 1 + member->uri.len - 4 +3, msgbody->s, msgbody->len);
body.s[body.len] = '\0';
member->flags |= IMC_MEMBER_SKIP;
imc_room_broadcast(room, &all_hdrs, &body);
member->flags &= ~IMC_MEMBER_SKIP;
imc_release_room(room);
return 0;
error:
if(room!=NULL)
imc_release_room(room);
return -1;
}
int imc_handle_accept(struct sip_msg* msg, imc_cmd_t *cmd,
struct sip_uri *src, struct sip_uri *dst)
{
imc_room_p room = 0;
imc_member_p member = 0;
str room_name;
str body;
/* accepting the invitation */
room_name = cmd->param[0].s?cmd->param[0]:dst->user;
room=imc_get_room(&room_name, &dst->host);
if(room== NULL || (room->flags&IMC_ROOM_DELETED))
{
LM_ERR("room [%.*s] is not created!\n", room_name.len, room_name.s);
goto error;
}
/* if aready invited add as a member */
member=imc_get_member(room, &src->user, &src->host);
if(member==NULL || !(member->flags & IMC_MEMBER_INVITED))
{
LM_ERR("user [%.*s] not invited in the room!\n",
src->user.len, src->user.s);
goto error;
}
member->flags &= ~IMC_MEMBER_INVITED;
/* send info message */
body.s = imc_body_buf;
body.len = snprintf(body.s, IMC_BUF_SIZE, "*** <%.*s> has joined the room",
member->uri.len, member->uri.s);
if(body.len>0)
imc_room_broadcast(room, &all_hdrs, &body);
if(body.len>=IMC_BUF_SIZE)
LM_ERR("member name %.*s truncated\n", member->uri.len, member->uri.s);
imc_release_room(room);
return 0;
error:
if(room!=NULL)
imc_release_room(room);
return -1;
}
int imc_handle_exit(struct sip_msg* msg, imc_cmd_t *cmd,
struct sip_uri *src, struct sip_uri *dst)
{
imc_room_p room = 0;
imc_member_p member = 0;
str room_name;
str body;
/* the user wants to leave the room */
room_name = cmd->param[0].s?cmd->param[0]:dst->user;
room= imc_get_room(&room_name, &dst->host);
if(room== NULL || (room->flags&IMC_ROOM_DELETED))
{
LM_ERR("room [%.*s] does not exist!\n", room_name.len, room_name.s);
goto error;
}
/* verify if the user is a member of the room */
member= imc_get_member(room, &src->user, &src->host);
if(member== NULL)
{
LM_ERR("user [%.*s] is not member of room [%.*s]!\n",
src->user.len, src->user.s, room_name.len, room_name.s);
goto error;
}
if(member->flags & IMC_MEMBER_OWNER)
{
/*If the user is the owner of the room, the room is distroyed */
room->flags |=IMC_ROOM_DELETED;
body.s = imc_body_buf;
strcpy(body.s, "The room has been destroyed");
body.len = strlen(body.s);
imc_room_broadcast(room, &all_hdrs, &body);
imc_release_room(room);
imc_del_room(&room_name, &dst->host);
room = NULL;
goto done;
} else {
/* delete user */
member->flags |= IMC_MEMBER_DELETED;
imc_del_member(room, &src->user, &src->host);
body.s = imc_body_buf;
body.len = snprintf(body.s, IMC_BUF_SIZE,
"The user [%.*s] has left the room",
src->user.len, src->user.s);
if(body.len>0)
imc_room_broadcast(room, &all_hdrs, &body);
if(body.len>=IMC_BUF_SIZE)
LM_ERR("user name %.*s truncated\n", src->user.len, src->user.s);
}
done:
if(room!=NULL)
imc_release_room(room);
return 0;
error:
if(room!=NULL)
imc_release_room(room);
return -1;
}
int imc_handle_remove(struct sip_msg* msg, imc_cmd_t *cmd,
struct sip_uri *src, struct sip_uri *dst)
{
imc_room_p room = 0;
imc_member_p member = 0;
str room_name;
str body;
str uri = {0, 0};
int size =0;
int i = 0;
int add_domain = 0;
int add_sip = 0;
struct sip_uri inv_uri;
size= cmd->param[0].len+2;
add_domain = 1;
while (i<size )
{
if(cmd->param[0].s[i]== '@')
{
add_domain =0;
break;
}
i++;
}
if(add_domain)
size += dst->host.len;
if(cmd->param[0].len<=4 || strncmp(cmd->param[0].s, "sip:", 4)!=0)
{
size+= 4;
add_sip = 1;
}
uri.s = (char*)pkg_malloc(size*sizeof(char));
if(uri.s == NULL)
{
LM_ERR("no more pkg memory\n");
goto error;
}
size= 0;
if(add_sip)
{
strcpy(uri.s, "sip:");
size = 4;
}
memcpy(uri.s+size, cmd->param[0].s, cmd->param[0].len);
size+= cmd->param[0].len;
if(add_domain)
{
uri.s[size] = '@';
size++;
memcpy(uri.s+size, dst->host.s, dst->host.len);
size+= dst->host.len;
}
uri.len = size;
if(parse_uri(uri.s, uri.len, &inv_uri)<0)
{
LM_ERR("invalid uri [%.*s]\n", uri.len, uri.s);
goto error;
}
room_name = cmd->param[1].s?cmd->param[1]:dst->user;
room= imc_get_room(&room_name, &dst->host);
if(room==NULL || (room->flags&IMC_ROOM_DELETED))
{
LM_ERR("room [%.*s]does not exist!\n", room_name.len, room_name.s);
goto error;
}
/* verify if the user who sent the request is a member in the room
* and has the right to remove other users */
member= imc_get_member(room, &src->user, &src->host);
if(member== NULL)
{
LM_ERR("user [%.*s] is not member of room [%.*s]!\n",
src->user.len, src->user.s, room_name.len, room_name.s);
goto error;
}
if(!(member->flags & IMC_MEMBER_OWNER) &&
!(member->flags & IMC_MEMBER_ADMIN))
{
LM_ERR("user [%.*s] has no right to remove other users [%.*s]!\n",
src->user.len, src->user.s, uri.len, uri.s);
goto error;
}
/* verify if the user that is to be removed is a member of the room */
member= imc_get_member(room, &inv_uri.user, &inv_uri.host);
if(member== NULL)
{
LM_ERR("user [%.*s] is not member of room [%.*s]!\n",
inv_uri.user.len, inv_uri.user.s, room_name.len, room_name.s);
goto error;
}
if(member->flags & IMC_MEMBER_OWNER)
{
LM_ERR("user [%.*s] is owner of room [%.*s]"
" -- cannot be removed!\n", inv_uri.user.len, inv_uri.user.s,
room_name.len, room_name.s);
goto error;
}
/* send message to the removed person */
body.s = "You have been removed from this room";
body.len = strlen(body.s);
LM_DBG("to: [%.*s]\nfrom: [%.*s]\nbody: [%.*s]\n",
member->uri.len, member->uri.s , room->uri.len, room->uri.s,
body.len, body.s);
imc_send_message(&room->uri, &member->uri, &all_hdrs, &body);
member->flags |= IMC_MEMBER_DELETED;
imc_del_member(room, &inv_uri.user, &inv_uri.host);
body.s = imc_body_buf;
body.len = snprintf(body.s, IMC_BUF_SIZE, "*** <%.*s> has joined the room",
member->uri.len, member->uri.s);
if(body.len>0)
imc_room_broadcast(room, &all_hdrs, &body);
if(body.len>=IMC_BUF_SIZE)
LM_ERR("member name %.*s truncated\n", member->uri.len, member->uri.s);
if(uri.s!=0)
pkg_free(uri.s);
imc_release_room(room);
return 0;
error:
if(uri.s!=0)
pkg_free(uri.s);
if(room!=NULL)
imc_release_room(room);
return -1;
}
int imc_handle_join(struct sip_msg* msg, imc_cmd_t *cmd,
struct sip_uri *src, struct sip_uri *dst)
{
imc_room_p room = 0;
imc_member_p member = 0;
int flag_room = 0;
int flag_member = 0;
str room_name;
str body;
room_name = cmd->param[0].s?cmd->param[0]:dst->user;
room=imc_get_room(&room_name, &dst->host);
if(room== NULL || (room->flags&IMC_ROOM_DELETED))
{
LM_DBG("could not find room [%.*s]- adding\n",
room_name.len, room_name.s);
room= imc_add_room(&room_name, &dst->host, flag_room);
if(room == NULL)
{
LM_ERR("failed to add new room [%.*s]\n",
room_name.len, room_name.s);
goto error;
}
LM_DBG("created a new room [%.*s]\n", room->name.len, room->name.s);
flag_member |= IMC_MEMBER_OWNER;
member= imc_add_member(room, &src->user, &src->host, flag_member);
if(member == NULL)
{
LM_ERR("failed to add new member [%.*s]\n",
src->user.len, src->user.s);
goto error;
}
/* send info message */
body.s = "*** room was created";
body.len = sizeof("*** room was created")-1;
imc_send_message(&room->uri, &member->uri, &all_hdrs, &body);
goto done;
}
/* room exists */
LM_DBG("found room [%.*s]\n", room_name.len, room_name.s);
member= imc_get_member(room, &src->user, &src->host);
if(!(room->flags & IMC_ROOM_PRIV))
{
LM_DBG("room [%.*s] is public\n", room_name.len, room_name.s);
if(member== NULL)
{
LM_DBG("adding new member [%.*s]\n", src->user.len, src->user.s);
member= imc_add_member(room, &src->user,
&src->host, flag_member);
if(member == NULL)
{
LM_ERR("adding new user [%.*s]\n", src->user.len, src->user.s);
goto error;
}
goto build_inform;
} else {
LM_DBG("member [%.*s] is in room already\n",
member->uri.len,member->uri.s );
}
} else {
if(member==NULL)
{
LM_ERR("attept to join private room [%.*s] from user [%.*s]\n",
room_name.len, room_name.s, src->user.len, src->user.s);
goto build_inform;
}
if(member->flags & IMC_MEMBER_INVITED)
member->flags &= ~IMC_MEMBER_INVITED;
}
build_inform:
/* send info message */
body.s = imc_body_buf;
if(member!=NULL)
{
body.len = snprintf(body.s, IMC_BUF_SIZE,
"*** <%.*s@%.*s> has joined the room",
src->user.len, src->user.s, src->host.len, src->host.s);
} else {
body.len = snprintf(body.s, IMC_BUF_SIZE,
"*** <%.*s@%.*s> attempted to join the room",
src->user.len, src->user.s, src->host.len, src->host.s);
}
if(body.len>0)
imc_room_broadcast(room, &all_hdrs, &body);
if(body.len>=IMC_BUF_SIZE)
LM_ERR("member name %.*s@%.*s truncated\n",
src->user.len, src->user.s, src->host.len, src->host.s);
done:
if(room!=NULL)
imc_release_room(room);
return 0;
error:
if(room!=NULL)
imc_release_room(room);
return -1;
}
int imc_handle_create(struct sip_msg* msg, imc_cmd_t *cmd,
struct sip_uri *src, struct sip_uri *dst)
{
imc_room_p room = 0;
imc_member_p member = 0;
int flag_room = 0;
int flag_member = 0;
str body;
room = imc_get_room(&cmd->param[0], &dst->host);
if(room== NULL)
{
LM_DBG("new room [%.*s]\n", cmd->param[0].len, cmd->param[0].s);
if(cmd->param[1].len==IMC_ROOM_PRIVATE_LEN
&& !strncasecmp(cmd->param[1].s, IMC_ROOM_PRIVATE,
cmd->param[1].len))
{
flag_room |= IMC_ROOM_PRIV;
LM_DBG("room with private flag on\n");
}
room= imc_add_room(&cmd->param[0], &dst->host, flag_room);
if(room == NULL)
{
LM_ERR("failed to add new room\n");
goto error;
}
LM_DBG("added room uri= %.*s\n", room->uri.len, room->uri.s);
flag_member |= IMC_MEMBER_OWNER;
/* adding the owner as the forst member*/
member= imc_add_member(room, &src->user, &src->host, flag_member);
if(member == NULL)
{
LM_ERR("failed to add owner [%.*s]\n", src->user.len, src->user.s);
goto error;
}
LM_DBG("added the owner as the first member "
"[%.*s]\n",member->uri.len, member->uri.s);
/* send info message */
body.s = "*** room was created";
body.len = sizeof("*** room was created")-1;
imc_send_message(&room->uri, &member->uri, &all_hdrs, &body);
goto done;
}
/* room already exists */
LM_DBG("room [%.*s] already created\n", cmd->param[0].len, cmd->param[0].s);
if(!(room->flags & IMC_ROOM_PRIV))
{
LM_DBG("checking if the user [%.*s] is a member\n",
src->user.len, src->user.s);
member= imc_get_member(room, &src->user, &src->host);
if(member== NULL)
{
member= imc_add_member(room, &src->user, &src->host, flag_member);
if(member == NULL)
{
LM_ERR("failed to add member [%.*s]\n",
src->user.len, src->user.s);
goto error;
}
LM_DBG("added as member [%.*s]\n",member->uri.len, member->uri.s);
/* send info message */
body.s = imc_body_buf;
body.len = snprintf(body.s, IMC_BUF_SIZE,
"*** <%.*s> has joined the room",
member->uri.len, member->uri.s);
if(body.len>0)
imc_room_broadcast(room, &all_hdrs, &body);
if(body.len>=IMC_BUF_SIZE)
LM_ERR("member name %.*s truncated\n", member->uri.len, member->uri.s);
}
}
done:
if(room!=NULL)
imc_release_room(room);
return 0;
error:
if(room!=NULL)
imc_release_room(room);
return -1;
}
int imc_handle_message(struct sip_msg* msg, str *msgbody,
struct sip_uri *src, struct sip_uri *dst, str *fullname)
{
imc_room_p room = 0;
imc_member_p member = 0;
str body;
room = imc_get_room(&dst->user, &dst->host);
if(room==NULL || (room->flags&IMC_ROOM_DELETED))
{
LM_ERR("room [%.*s] does not exist!\n", dst->user.len, dst->user.s);
goto error;
}
member= imc_get_member(room, &src->user, &src->host);
if(member== NULL || (member->flags & IMC_MEMBER_INVITED))
{
LM_ERR("user [%.*s] has no rights to send messages in room [%.*s]!\n",
src->user.len, src->user.s, dst->user.len, dst->user.s);
goto error;
}
LM_DBG("broadcast to room [%.*s]\n", room->uri.len, room->uri.s);
body.s = imc_body_buf;
if(!use_from_displayname) {
/* use name from table */
body.len = msgbody->len + member->fullname.len + 4 /* +4 []:_ */;
} else {
/* use name from SIP message */
body.len = msgbody->len + fullname->len + 4 /* +4 []:_ */;
}
if(body.len>=IMC_BUF_SIZE)
{
LM_ERR("buffer overflow [%.*s]\n", msgbody->len, msgbody->s);
goto error;
}
LM_DBG("Is from DB: [%.*s], could be from user [%.*s]\n", member->fullname.len, member->fullname.s, fullname->len, fullname->s);
body.s[0] = '[';
/* TODO Use URI if no name available, can always be from IMC members as each user must be member and has a URI */
if(!use_from_displayname) {
memcpy(body.s + 1, member->fullname.s, member->fullname.len);
memcpy(body.s + 1 + member->fullname.len, "]: ", 3);
memcpy(body.s + 1 + member->fullname.len + 3, msgbody->s, msgbody->len);
} else {
memcpy(body.s + 1, fullname->s, fullname->len);
memcpy(body.s + 1 + fullname->len, "]: ", 3);
memcpy(body.s + 1 + fullname->len + 3, msgbody->s, msgbody->len);
}
body.s[body.len] = '\0';
member->flags |= IMC_MEMBER_SKIP;
imc_room_broadcast(room, &imc_hdr_ctype, &body);
member->flags &= ~IMC_MEMBER_SKIP;
imc_release_room(room);
return 0;
error:
if(room!=NULL)
imc_release_room(room);
return -1;
}
