/*!
* \brief Returns OK message in the case of a subscription request.
*
* \return UPNP_E_SUCCESS if successful, otherwise the appropriate error code.
*/
static int respond_ok(
/*! [in] Socket connection of request. */
SOCKINFO *info,
/*! [in] Accepted duration. */
int time_out,
/*! [in] Accepted subscription. */
subscription *sub,
/*! [in] Http request. */
http_message_t *request)
{
int major;
int minor;
membuffer response;
int return_code;
char timeout_str[100];
int upnp_timeout = UPNP_TIMEOUT;
int rc = 0;
http_CalcResponseVersion( request->major_version,
request->minor_version, &major, &minor );
if( time_out >= 0 ) {
rc = snprintf( timeout_str, sizeof ( timeout_str ),
"TIMEOUT: Second-%d", time_out );
} else {
memset( timeout_str, 0, sizeof( timeout_str ) );
strncpy( timeout_str, "TIMEOUT: Second-infinite",
sizeof ( timeout_str ) - 1);
}
if (rc < 0 || (unsigned int) rc >= sizeof ( timeout_str ) ) {
error_respond( info, HTTP_INTERNAL_SERVER_ERROR, request );
return UPNP_E_OUTOF_MEMORY;
}
membuffer_init( &response );
response.size_inc = 30;
if( http_MakeMessage(
&response, major, minor,
"R" "D" "S" "N" "Xc" "ssc" "scc",
HTTP_OK,
(off_t)0,
X_USER_AGENT,
"SID: ", sub->sid,
timeout_str ) != 0 ) {
membuffer_destroy( &response );
error_respond( info, HTTP_INTERNAL_SERVER_ERROR, request );
return UPNP_E_OUTOF_MEMORY;
}
return_code = http_SendMessage( info, &upnp_timeout, "b",
response.buf, response.length );
membuffer_destroy( &response );
return return_code;
}
/****************************************************************************
* Function : send_var_query_response
*
* Parameters :
* IN SOCKINFO *info : socket info
* IN const char* var_value : value of the state variable
* IN http_message_t* hmsg : HTTP request
*
* Description : This function sends response of get var status
*
* Return : void
*
* Note :
****************************************************************************/
static UPNP_INLINE void
send_var_query_response( IN SOCKINFO * info,
IN const char *var_value,
IN http_message_t * hmsg )
{
off_t content_length;
int timeout_secs = SOAP_TIMEOUT;
int major;
int minor;
const char *start_body =
"<s:Envelope "
"xmlns:s=\"http://schemas.xmlsoap.org/soap/envelope/\" "
"s:encodingStyle=\"http://schemas.xmlsoap.org/soap/encoding/\">\n"
"<s:Body>\n"
"<u:QueryStateVariableResponse "
"xmlns:u=\"urn:schemas-upnp-org:control-1-0\">\n" "<return>";
const char *end_body =
"</return>\n"
"</u:QueryStateVariableResponse>\n"
"</s:Body>\n" "</s:Envelope>\n";
membuffer response;
http_CalcResponseVersion( hmsg->major_version, hmsg->minor_version,
&major, &minor );
content_length = strlen( start_body ) + strlen( var_value ) +
strlen( end_body );
// make headers
membuffer_init( &response );
if (http_MakeMessage(
&response, major, minor,
"RNsDsSXcc" "sss",
HTTP_OK,
content_length,
ContentTypeHeader,
"EXT:\r\n",
X_USER_AGENT,
start_body, var_value, end_body ) != 0 ) {
membuffer_destroy( &response );
return; // out of mem
}
// send msg
http_SendMessage( info, &timeout_secs, "b",
response.buf, response.length );
membuffer_destroy( &response );
}
/****************************************************************************
* Function : send_error_response
*
* Parameters :
* IN SOCKINFO *info : socket info
* IN int error_code : error code
* IN const char* err_msg : error message
* IN http_message_t* hmsg : HTTP request
*
* Description : This function sends SOAP error response
*
* Return : void
*
* Note :
****************************************************************************/
static void
send_error_response( IN SOCKINFO * info,
IN int error_code,
IN const char *err_msg,
IN http_message_t * hmsg )
{
int content_length;
int timeout_secs = SOAP_TIMEOUT;
int major,
minor;
const char *start_body =
"<s:Envelope\n"
"xmlns:s=\"http://schemas.xmlsoap.org/soap/envelope/\"\n"
"s:encodingStyle=\"http://schemas.xmlsoap.org/soap/encoding/\">\n"
"<s:Body>\n"
"<s:Fault>\n"
"<faultcode>s:Client</faultcode>\n"
"<faultstring>UPnPError</faultstring>\n"
"<detail>\n"
"<UPnPError xmlns=\"urn:schemas-upnp-org:control-1-0\">\n"
"<errorCode>";
const char *mid_body = "</errorCode>\n" "<errorDescription>";
const char *end_body =
"</errorDescription>\n"
"</UPnPError>\n"
"</detail>\n" "</s:Fault>\n" "</s:Body>\n" "</s:Envelope>\n";
char err_code_str[30];
membuffer headers;
sprintf( err_code_str, "%d", error_code );
// calc body len
content_length = strlen( start_body ) + strlen( err_code_str ) +
strlen( mid_body ) + strlen( err_msg ) + strlen( end_body );
http_CalcResponseVersion( hmsg->major_version, hmsg->minor_version,
&major, &minor );
// make headers
membuffer_init( &headers );
if( http_MakeMessage( &headers, major, minor,
"RNsDsSc" "sssss",
500,
content_length,
ContentTypeHeader,
"EXT:\r\n",
start_body, err_code_str, mid_body, err_msg,
end_body ) != 0 ) {
membuffer_destroy( &headers );
return; // out of mem
}
// send err msg
http_SendMessage( info, &timeout_secs, "b",
headers.buf, headers.length );
membuffer_destroy( &headers );
}
/*!
* \brief Sends the notify message and returns a reply.
*
* \return on success returns UPNP_E_SUCCESS, otherwise returns a UPNP error.
*
* \note called by genaNotify
*/
static UPNP_INLINE int notify_send_and_recv(
/*! [in] subscription callback URL (URL of the control point). */
uri_type *destination_url,
/*! [in] Common HTTP headers. */
membuffer *mid_msg,
/*! [in] The evented XML. */
char *propertySet,
/*! [out] The response from the control point. */
http_parser_t *response)
{
uri_type url;
SOCKET conn_fd;
membuffer start_msg;
int ret_code;
int err_code;
int timeout;
SOCKINFO info;
const char *CRLF = "\r\n";
/* connect */
UpnpPrintf(UPNP_ALL, GENA, __FILE__, __LINE__,
"gena notify to: %.*s\n",
(int)destination_url->hostport.text.size,
destination_url->hostport.text.buff);
conn_fd = http_Connect(destination_url, &url);
if (conn_fd < 0)
/* return UPNP error */
return UPNP_E_SOCKET_CONNECT;
ret_code = sock_init(&info, conn_fd);
if (ret_code) {
sock_destroy(&info, SD_BOTH);
return ret_code;
}
/* make start line and HOST header */
membuffer_init(&start_msg);
if (http_MakeMessage(
&start_msg, 1, 1,
"q" "s",
HTTPMETHOD_NOTIFY, &url,
mid_msg->buf) != 0) {
membuffer_destroy(&start_msg);
sock_destroy(&info, SD_BOTH);
return UPNP_E_OUTOF_MEMORY;
}
timeout = GENA_NOTIFICATION_SENDING_TIMEOUT;
/* send msg (note: end of notification will contain "\r\n" twice) */
ret_code = http_SendMessage(&info, &timeout,
"bbb",
start_msg.buf, start_msg.length,
propertySet, strlen(propertySet),
CRLF, strlen(CRLF));
if (ret_code) {
membuffer_destroy(&start_msg);
sock_destroy(&info, SD_BOTH);
return ret_code;
}
timeout = GENA_NOTIFICATION_ANSWERING_TIMEOUT;
ret_code = http_RecvMessage(&info, response,
HTTPMETHOD_NOTIFY, &timeout, &err_code);
if (ret_code) {
membuffer_destroy(&start_msg);
sock_destroy(&info, SD_BOTH);
httpmsg_destroy(&response->msg);
return ret_code;
}
/* should shutdown completely when closing socket */
sock_destroy(&info, SD_BOTH);
membuffer_destroy(&start_msg);
return UPNP_E_SUCCESS;
}
void web_server_callback(http_parser_t *parser, INOUT http_message_t *req,
SOCKINFO *info)
{
int ret;
int timeout = 0;
enum resp_type rtype = 0;
membuffer headers;
membuffer filename;
struct xml_alias_t xmldoc;
struct SendInstruction RespInstr;
/*Initialize instruction header. */
RespInstr.IsVirtualFile = 0;
RespInstr.IsChunkActive = 0;
RespInstr.IsRangeActive = 0;
RespInstr.IsTrailers = 0;
memset(RespInstr.AcceptLanguageHeader, 0,
sizeof(RespInstr.AcceptLanguageHeader));
/* init */
membuffer_init(&headers);
membuffer_init(&filename);
/*Process request should create the different kind of header depending on the */
/*the type of request. */
ret = process_request(req, &rtype, &headers, &filename, &xmldoc,
&RespInstr);
if (ret != HTTP_OK) {
/* send error code */
http_SendStatusResponse(info, ret, req->major_version,
req->minor_version);
} else {
/* send response */
switch (rtype) {
case RESP_FILEDOC:
http_SendMessage(info, &timeout, "Ibf",
&RespInstr,
headers.buf, headers.length,
filename.buf);
break;
case RESP_XMLDOC:
http_SendMessage(info, &timeout, "Ibb",
&RespInstr,
headers.buf, headers.length,
xmldoc.doc.buf, xmldoc.doc.length);
alias_release(&xmldoc);
break;
case RESP_WEBDOC:
/*http_SendVirtualDirDoc(info, &timeout, "Ibf",
&RespInstr,
headers.buf, headers.length,
filename.buf);*/
http_SendMessage(info, &timeout, "Ibf",
&RespInstr,
headers.buf, headers.length,
filename.buf);
break;
case RESP_HEADERS:
/* headers only */
http_SendMessage(info, &timeout, "b",
headers.buf, headers.length);
break;
case RESP_POST:
/* headers only */
ret = http_RecvPostMessage(parser, info, filename.buf,
&RespInstr);
/* Send response. */
http_MakeMessage(&headers, 1, 1,
"RTLSXcCc",
ret, "text/html", &RespInstr, X_USER_AGENT);
http_SendMessage(info, &timeout, "b",
headers.buf, headers.length);
break;
default:
UpnpPrintf(UPNP_INFO, HTTP, __FILE__, __LINE__,
"webserver: Invalid response type received.\n");
assert(0);
}
}
UpnpPrintf(UPNP_INFO, HTTP, __FILE__, __LINE__,
"webserver: request processed...\n");
membuffer_destroy(&headers);
membuffer_destroy(&filename);
}
/*!
* \brief Sends the SOAP action response.
*/
static UPNP_INLINE void send_action_response(
/*! [in] Socket info. */
SOCKINFO *info,
/*! [in] The response document. */
IXML_Document *action_resp,
/*! [in] Action request document. */
http_message_t *request)
{
char *xml_response = NULL;
membuffer headers;
int major, minor;
int err_code;
off_t content_length;
int ret_code;
int timeout_secs = SOAP_TIMEOUT;
static const char *start_body =
"<?xml version=\"1.0\"?>"
"<s:Envelope xmlns:s=\"http://schemas.xmlsoap."
"org/soap/envelope/\" s:encodingStyle=\"http://schemas.xmlsoap."
"org/soap/encoding/\"><s:Body>\n";
static const char *end_body = "</s:Body> </s:Envelope>";
/* init */
http_CalcResponseVersion(request->major_version, request->minor_version,
&major, &minor);
membuffer_init(&headers);
err_code = UPNP_E_OUTOF_MEMORY; /* one error only */
/* get xml */
xml_response = ixmlPrintNode((IXML_Node *) action_resp);
if (!xml_response)
goto error_handler;
content_length = (off_t)(strlen(start_body) + strlen(xml_response) +
strlen(end_body));
/* make headers */
if (http_MakeMessage(&headers, major, minor,
"RNsDsSXcc",
HTTP_OK, /* status code */
content_length,
ContentTypeHeader,
"EXT:\r\n", X_USER_AGENT) != 0) {
goto error_handler;
}
/* send whole msg */
ret_code = http_SendMessage(
info, &timeout_secs, "bbbb",
headers.buf, headers.length,
start_body, strlen(start_body),
xml_response, strlen(xml_response),
end_body, strlen(end_body));
if (ret_code != 0) {
UpnpPrintf(UPNP_INFO, SOAP, __FILE__, __LINE__,
"Failed to send response: err code = %d\n",
ret_code);
}
err_code = 0;
error_handler:
ixmlFreeDOMString(xml_response);
membuffer_destroy(&headers);
if (err_code != 0) {
/* only one type of error to worry about - out of mem */
send_error_response(info, SOAP_ACTION_FAILED, "Out of memory",
request);
}
}
/*!
* \brief Sends SOAP error response.
*/
static void send_error_response(
/*! [in] Socket info. */
IN SOCKINFO *info,
/*! [in] Error code. */
IN int error_code,
/*! [in] Error message. */
IN const char *err_msg,
/*! [in] HTTP request. */
IN http_message_t *hmsg)
{
off_t content_length;
int timeout_secs = SOAP_TIMEOUT;
int major;
int minor;
const char *start_body =
"<?xml version=\"1.0\"?>\n"
"<s:Envelope "
"xmlns:s=\"http://schemas.xmlsoap.org/soap/envelope/\" "
"s:encodingStyle=\"http://schemas.xmlsoap.org/soap/encoding/\">\n"
"<s:Body>\n"
"<s:Fault>\n"
"<faultcode>s:Client</faultcode>\n"
"<faultstring>UPnPError</faultstring>\n"
"<detail>\n"
"<UPnPError xmlns=\"urn:schemas-upnp-org:control-1-0\">\n"
"<errorCode>";
const char *mid_body =
"</errorCode>\n"
"<errorDescription>";
const char *end_body =
"</errorDescription>\n"
"</UPnPError>\n"
"</detail>\n"
"</s:Fault>\n"
"</s:Body>\n"
"</s:Envelope>\n";
char err_code_str[30];
membuffer headers;
memset(err_code_str, 0, sizeof(err_code_str));
snprintf(err_code_str, sizeof(err_code_str), "%d", error_code);
/* calc body len */
content_length = (off_t) (strlen(start_body) + strlen(err_code_str) +
strlen(mid_body) + strlen(err_msg) +
strlen(end_body));
http_CalcResponseVersion(hmsg->major_version, hmsg->minor_version,
&major, &minor);
/* make headers */
membuffer_init(&headers);
if (http_MakeMessage(&headers, major, minor,
"RNsDsSXcc" "sssss",
500,
content_length,
ContentTypeHeader,
"EXT:\r\n",
X_USER_AGENT,
start_body, err_code_str, mid_body, err_msg,
end_body) != 0) {
membuffer_destroy(&headers);
/* out of mem */
return;
}
/* send err msg */
http_SendMessage(info, &timeout_secs, "b",
headers.buf, headers.length);
membuffer_destroy(&headers);
}
void web_server_callback(http_parser_t *parser, INOUT http_message_t *req,
SOCKINFO *info)
{
int ret;
int timeout = 5;
enum resp_type rtype = 0;
membuffer headers;
membuffer filename;
struct xml_alias_t xmldoc;
#if 0
struct SendInstruction *pRespInstr;
struct SendInstruction RespInstr;
/*Initialize instruction header. */
RespInstr.IsVirtualFile = 0;
RespInstr.IsChunkActive = 0;
RespInstr.IsRangeActive = 0;
RespInstr.IsTrailers = 0;
memset(RespInstr.AcceptLanguageHeader, 0,
sizeof(RespInstr.AcceptLanguageHeader));
pRespInstr = &RespInstr;
#else
struct SendInstruction *pRespInstr = osal_zmalloc( sizeof(struct SendInstruction) );
#endif
/* init */
membuffer_init(&headers);
membuffer_init(&filename);
/*Process request should create the different kind of header depending on the */
/*the type of request. */
ret = process_request(req, &rtype, &headers, &filename, &xmldoc,
pRespInstr);
if (ret != HTTP_OK) {
/* send error code */
http_SendStatusResponse(info, ret, req->major_version,
req->minor_version);
} else {
/* send response */
switch (rtype) {
case RESP_FILEDOC:
// The timeout need consider as transfer rate is high but consumption is slow and recevie buffer
// is small in recevier. It will cause receiver pauses to receive data a while. If timeout is short,
// the socket will be closed by timeout!!
// HTTP file playback may get a timeout issue when media (bitrate 15Mbits) sent fast (26Mbits or above)
// to Android device.
timeout = 20; // The value 20 is by experiment,as video is 15Mbits,
// tcp has 26Mbits in transfer to NEXUS 7 video player!
http_SendMessage(info, &timeout, "Ibf",
pRespInstr,
headers.buf, headers.length,
filename.buf);
UpnpPrintf(UPNP_WARN, HTTP, __FILE__, __LINE__,"%d FILEDOC %s\r\n", __LINE__, filename.buf);
break;
case RESP_XMLDOC:
http_SendMessage(info, &timeout, "Ibb",
pRespInstr,
headers.buf, headers.length,
xmldoc.doc.buf, xmldoc.doc.length);
alias_release(&xmldoc);
UpnpPrintf(UPNP_WARN, HTTP, __FILE__, __LINE__,"%d XMLDOC %s\r\n", __LINE__, xmldoc.doc.buf);
break;
case RESP_WEBDOC:
/*http_SendVirtualDirDoc(info, &timeout, "Ibf",
pRespInstr,
headers.buf, headers.length,
filename.buf);*/
http_SendMessage(info, &timeout, "Ibf",
pRespInstr,
headers.buf, headers.length,
filename.buf);
UpnpPrintf(UPNP_WARN, HTTP, __FILE__, __LINE__,"%d WEBDOC %s\r\n", __LINE__, filename.buf);
break;
case RESP_HEADERS:
/* headers only */
http_SendMessage(info, &timeout, "b",
headers.buf, headers.length);
UpnpPrintf(UPNP_WARN, HTTP, __FILE__, __LINE__,"%d HEADERS %s\r\n", __LINE__, headers.buf);
break;
case RESP_POST:
/* headers only */
ret = http_RecvPostMessage(parser, info, filename.buf,
pRespInstr);
if (ret != HTTP_OK){
req->status_code = HTTP_BAD_REQUEST;
}
/* Send response. */
http_MakeMessage(&headers, 1, 1,
"RTLSXcCc",
ret, "text/html", pRespInstr, X_USER_AGENT, "WebServer by Alpha Imaging Technology Corp.");
http_SendMessage(info, &timeout, "b",
headers.buf, headers.length);
UpnpPrintf(UPNP_WARN, HTTP, __FILE__, __LINE__,"%d POST %s\r\n", __LINE__, headers.buf);
break;
default:
UpnpPrintf(UPNP_INFO, HTTP, __FILE__, __LINE__,
"webserver: Invalid response type received.\n");
assert(0);
break;
}
}
UpnpPrintf(UPNP_INFO, HTTP, __FILE__, __LINE__,
"webserver: request processed...\n");
membuffer_destroy(&headers);
membuffer_destroy(&filename);
osal_free(pRespInstr)
}