int RTSP_teardown(RTSP_buffer * rtsp)
{
long int session_id;
char *p;
RTSP_session *s;
RTP_session *rtp_curr, *rtp_prev = NULL, *rtp_temp;
int valid_url;
char object[255], server[255], trash[255], *filename;
unsigned short port;
char url[255];
unsigned int cseq;
// CSeq
if ((p = strstr(rtsp->in_buffer, HDR_CSEQ)) == NULL) {
send_reply(400, 0, rtsp); /* Bad Request */
return ERR_PARSE;
} else {
if (sscanf(p, "%254s %d", trash, &(rtsp->rtsp_cseq)) != 2) {
send_reply(400, 0, rtsp); /* Bad Request */
return ERR_PARSE;
}
}
cseq = rtsp->rtsp_cseq;
/* Extract the URL */
if (!sscanf(rtsp->in_buffer, " %*s %254s ", url)) {
send_reply(400, 0, rtsp); /* bad request */
return ERR_PARSE;
}
/* Validate the URL */
switch (parse_url(url, server, sizeof(server), &port, object, sizeof(object))) {
case 1: // bad request
send_reply(400, 0, rtsp);
return ERR_PARSE;
break;
case -1: // internal server error
send_reply(500, 0, rtsp);
return ERR_PARSE;
break;
default:
break;
}
if (strcmp(server, prefs_get_hostname()) != 0) { /* Currently this feature is disabled. */
/* wrong server name */
// send_reply(404, 0 , rtsp); /* Not Found */
// return ERR_PARSE;
}
if (strstr(object, "../")) {
/* disallow relative paths outside of current directory. */
send_reply(403, 0, rtsp); /* Forbidden */
return ERR_PARSE;
}
if (strstr(object, "./")) {
/* Disallow ./ */
send_reply(403, 0, rtsp); /* Forbidden */
return ERR_PARSE;
}
p = strrchr(object, '.');
valid_url = 0;
if (p == NULL) {
send_reply(415, 0, rtsp); /* Unsupported media type */
return ERR_PARSE;
} else {
valid_url = is_supported_url(p);
}
if (!valid_url) {
send_reply(415, 0, rtsp); /* Unsupported media type */
return ERR_PARSE;
}
// Session
if ((p = strstr(rtsp->in_buffer, HDR_SESSION)) != NULL) {
if (sscanf(p, "%254s %ld", trash, &session_id) != 2) {
send_reply(454, 0, rtsp); /* Session Not Found */
return ERR_PARSE;
// return ERR_NOERROR;
}
} else {
session_id = -1;
}
s = rtsp->session_list;
if (s == NULL) {
send_reply(415, 0, rtsp); // Internal server error
return ERR_GENERIC;
}
if (s->session_id != session_id) {
send_reply(454, 0, rtsp); /* Session Not Found */
return ERR_PARSE;
}
fnc_log(FNC_LOG_INFO,"TEARDOWN %s RTSP/1.0 ",url);
send_teardown_reply(rtsp, session_id, cseq);
// See User-Agent
if ((p=strstr(rtsp->in_buffer, HDR_USER_AGENT))!=NULL) {
char cut[strlen(p)];
strcpy(cut,p);
p=strstr(cut, "\n");
cut[strlen(cut)-strlen(p)-1]='\0';
fnc_log(FNC_LOG_CLIENT,"%s\n",cut);
}
else
fnc_log(FNC_LOG_CLIENT,"- \n");
if (strchr(object, '!')) /*Compatibility with RealOne and RealPlayer */
filename = strchr(object, '!') + 1;
else
filename = object;
// Release all URI RTP session
rtp_curr = s->rtp_session;
while (rtp_curr != NULL) {
if (strcmp(rtp_curr->current_media->filename, filename) == 0
|| strcmp(rtp_curr->current_media->aggregate, filename) == 0) {
rtp_temp = rtp_curr;
if (rtp_prev != NULL)
rtp_prev->next = rtp_curr->next;
else
s->rtp_session = rtp_curr->next;
rtp_curr = rtp_curr->next;
// Release the scheduler entry
schedule_remove(rtp_temp->sched_id);
// Close connections
} else {
rtp_prev = rtp_curr;
rtp_curr = rtp_curr->next;
}
}
if (s->rtp_session == NULL) {
// Close connection
//close(s->fd);
// Release the RTSP session
free(rtsp->session_list);
rtsp->session_list = NULL;
}
return ERR_NOERROR;
}
int RTSP_teardown(RTSP_buffer * pRtsp)
{
char *pStr;
char pTrash[128];
long int s32SessionId;
RTSP_session *pRtspSesn;
RTP_session *pRtpSesn;
//获取CSeq
if ((pStr = strstr(pRtsp->in_buffer, HDR_CSEQ)) == NULL)
{
send_reply(400, 0, pRtsp); // Bad Request
printf("get CSeq error");
return ERR_NOERROR;
}
else
{
if (sscanf(pStr, "%254s %d", pTrash, &(pRtsp->rtsp_cseq)) != 2)
{
send_reply(400, 0, pRtsp); // Bad Request
printf("get CSeq 2 error");
return ERR_NOERROR;
}
}
//获取session
if ((pStr = strstr(pRtsp->in_buffer, HDR_SESSION)) != NULL)
{
if (sscanf(pStr, "%254s %ld", pTrash, &s32SessionId) != 2)
{
send_reply(454, 0, pRtsp); // Session Not Found
return ERR_NOERROR;
}
}
else
{
s32SessionId = -1;
}
pRtspSesn = pRtsp->session_list;
if (pRtspSesn == NULL)
{
send_reply(415, 0, pRtsp); // Internal server error
return ERR_GENERIC;
}
if (pRtspSesn->session_id != s32SessionId)
{
send_reply(454, 0, pRtsp); // Session not found
return ERR_NOERROR;
}
//向客户端发送响应消息
send_teardown_reply(pRtsp, s32SessionId, pRtsp->rtsp_cseq);
//释放所有的URI RTP会话
RTP_session *pRtpSesnTemp;
pRtpSesn = pRtspSesn->rtp_session;
while (pRtpSesn != NULL)
{
pRtpSesnTemp = pRtpSesn;
pRtspSesn->rtp_session = pRtpSesn->next;
pRtpSesn = pRtpSesn->next;
//删除RTP视频发送
RtpDelete((unsigned int)pRtpSesnTemp->hndRtp);
//删除schedule中对应id
schedule_remove(pRtpSesnTemp->sched_id);
//全局变量播放总数减一，如果为0则不播放
g_s32DoPlay--;
}
//释放链表空间
if (pRtspSesn->rtp_session == NULL)
{
free(pRtsp->session_list);
pRtsp->session_list = NULL;
}
return ERR_NOERROR;
}
