C++ PLT_ActionReference::SetError方法代码示例

/*----------------------------------------------------------------------
|   PLT_LightSampleDevice::OnAction
+---------------------------------------------------------------------*/
NPT_Result
PLT_LightSampleDevice::OnAction(PLT_ActionReference& action, NPT_SocketInfo* /* info */)
{
    /* parse the action name */
    NPT_String name = action->GetActionDesc()->GetName();
    if (name.Compare("SetTarget") == 0) {
        NPT_String value;
        action->GetArgumentValue("newTargetValue", value);

        PLT_StateVariable* variable = action->GetActionDesc()->GetService()->FindStateVariable("Status");
        if (NPT_FAILED(variable->SetValue(value))) {
            action->SetError(402, "Invalid Args");
            return NPT_FAILURE;
        }
        return NPT_SUCCESS;
    } else if (name.Compare("GetStatus") == 0) {
        PLT_StateVariable* variable = action->GetActionDesc()->GetService()->FindStateVariable("Status");
        if (variable) {
            action->SetArgumentValue("ResultStatus", variable->GetValue());
            return NPT_SUCCESS;
        }
    }
    
    action->SetError(501, "Action Failed");
    return NPT_FAILURE;
}

/*----------------------------------------------------------------------
|   PLT_FileMediaConnectDelegate::OnSearchContainer
+---------------------------------------------------------------------*/
NPT_Result
PLT_FileMediaConnectDelegate::OnSearchContainer(PLT_ActionReference&          action, 
                                                const char*                   object_id, 
                                                const char*                   search_criteria,
                                                const char*                   filter,
                                                NPT_UInt32                    starting_index,
                                                NPT_UInt32                    requested_count,
                                                const char*                   sort_criteria,
                                                const PLT_HttpRequestContext& context)
{
    /* parse search criteria */
    
    /* TODO: HACK TO PASS DLNA */
    if (search_criteria && NPT_StringsEqual(search_criteria, "Unknownfieldname")) {
        /* error */
        NPT_LOG_WARNING_1("Unsupported or invalid search criteria %s", search_criteria);
        action->SetError(708, "Unsupported or invalid search criteria");
        return NPT_FAILURE;
    }
    
    /* locate the file from the object ID */
    NPT_String dir;
    if (NPT_FAILED(GetFilePath(object_id, dir))) {
        /* error */
        NPT_LOG_WARNING("ObjectID not found.");
        action->SetError(710, "No Such Container.");
        return NPT_FAILURE;
    }
    
    /* retrieve the item type */
    NPT_FileInfo info;
    NPT_Result res = NPT_File::GetInfo(dir, &info);
    if (NPT_FAILED(res) || (info.m_Type != NPT_FileInfo::FILE_TYPE_DIRECTORY)) {
        /* error */
        NPT_LOG_WARNING("No such container");
        action->SetError(710, "No such container");
        return NPT_FAILURE;
    }
    
    /* hack for now to return something back to XBox 360 */
    return OnBrowseDirectChildren(action, 
                                  object_id, 
                                  filter, 
                                  starting_index, 
                                  requested_count, 
                                  sort_criteria, 
                                  context);
}

/*----------------------------------------------------------------------
|   PLT_MediaRenderer::OnGetCurrentConnectionInfo
+---------------------------------------------------------------------*/
NPT_Result
PLT_MediaRenderer::OnGetCurrentConnectionInfo(PLT_ActionReference& action)
{
    if (NPT_FAILED(action->VerifyArgumentValue("ConnectionID", "0"))) {
        action->SetError(706,"No Such Connection.");
        return NPT_FAILURE;
    }

    if (NPT_FAILED(action->SetArgumentValue("RcsID", "0"))){
        return NPT_FAILURE;
    }
    if (NPT_FAILED(action->SetArgumentValue("AVTransportID", "0"))) {
        return NPT_FAILURE;
    }
    if (NPT_FAILED(action->SetArgumentValue("ProtocolInfo", "http-get:*:*:*"))) {
        return NPT_FAILURE;
    }
    if (NPT_FAILED(action->SetArgumentValue("PeerConnectionManager", "/"))) {
        return NPT_FAILURE;
    }
    if (NPT_FAILED(action->SetArgumentValue("PeerConnectionID", "-1"))) {
        return NPT_FAILURE;
    }
    if (NPT_FAILED(action->SetArgumentValue("Direction", "Input"))) {
        return NPT_FAILURE;
    }
    if (NPT_FAILED(action->SetArgumentValue("Status", "Unknown"))) {
        return NPT_FAILURE;
    }

    return NPT_SUCCESS;
}

NPT_Result
GPAC_GenericDevice::OnAction(PLT_ActionReference&          action,
                             const PLT_HttpRequestContext& context)
{
	NPT_COMPILER_UNUSED(context);

#ifdef GPAC_HAS_SPIDERMONKEY
	gf_mx_p(m_pMutex);
#endif
	PLT_ActionDesc &act_desc = action->GetActionDesc();
	NPT_String name = act_desc.GetName();
#ifdef GPAC_HAS_SPIDERMONKEY
	assert(!m_pSema);
#endif
	GF_LOG(GF_LOG_INFO, GF_LOG_NETWORK, ("[UPnP] Action %s called (thread %d)\n", (char *) name, gf_th_id() ));

#ifdef GPAC_HAS_SPIDERMONKEY
	if (JSVAL_IS_NULL(act_proc)) {
		gf_mx_v(m_pMutex);
		return NPT_SUCCESS;
	}

	jsval argv[2];

	m_pUPnP->LockJavascript(GF_TRUE);

	JSObject *js_action = JS_NewObject(m_pUPnP->m_pJSCtx, &m_pUPnP->upnpDeviceClass._class, 0, 0);
	argv[0] = OBJECT_TO_JSVAL(js_action);
	SMJS_SET_PRIVATE(m_pUPnP->m_pJSCtx, js_action, this);

	act_ref = action;

	JS_DefineProperty(m_pUPnP->m_pJSCtx, js_action, "Name", STRING_TO_JSVAL( JS_NewStringCopyZ(m_pUPnP->m_pJSCtx, name) ), 0, 0, JSPROP_READONLY | JSPROP_PERMANENT);
	GPAC_Service *service = (GPAC_Service *) act_desc.GetService();
	JS_DefineProperty(m_pUPnP->m_pJSCtx, js_action, "Service", service->m_pObj ? OBJECT_TO_JSVAL( service->m_pObj) : JSVAL_NULL, 0, 0, JSPROP_READONLY | JSPROP_PERMANENT);
	JS_DefineFunction(m_pUPnP->m_pJSCtx, js_action, "GetArgument", upnp_action_get_argument, 1, 0);
	JS_DefineFunction(m_pUPnP->m_pJSCtx, js_action, "SendReply", upnp_action_send_reply, 1, 0);

	/*create a semaphore*/
	m_pSema = gf_sema_new(1, 0);

	jsval rval;
	JS_CallFunctionValue(m_pUPnP->m_pJSCtx, obj, act_proc, 1, argv, &rval);
	SMJS_SET_PRIVATE(m_pUPnP->m_pJSCtx, js_action, NULL);
	m_pUPnP->LockJavascript(GF_FALSE);

	if (JSVAL_IS_INT(rval) && (JSVAL_TO_INT(rval) != 0)) {
		action->SetError(JSVAL_TO_INT(rval), "Action Failed");
	}
	/*wait on the semaphore*/
	if (!gf_sema_wait_for(m_pSema, 10000)) {
		GF_LOG(GF_LOG_WARNING, GF_LOG_NETWORK, ("[UPnP] Reply processing to action %s timeout - sending incomplete reply)\n", (char *) name));
	}
	gf_sema_del(m_pSema);
	m_pSema = NULL;

	gf_mx_v(m_pMutex);
#endif
	return NPT_SUCCESS;
}

/*----------------------------------------------------------------------
|   PLT_MediaServer::OnGetCurrentConnectionInfo
+---------------------------------------------------------------------*/
NPT_Result
PLT_MediaServer::OnGetCurrentConnectionInfo(PLT_ActionReference&          action, 
                                            const PLT_HttpRequestContext& context)
{
    NPT_COMPILER_UNUSED(context);

    if (NPT_FAILED(action->VerifyArgumentValue("ConnectionID", "0"))) {
        action->SetError(706,"No Such Connection.");
        return NPT_FAILURE;
    }

    if (NPT_FAILED(action->SetArgumentValue("RcsID", "-1"))){
        return NPT_FAILURE;
    }
    if (NPT_FAILED(action->SetArgumentValue("AVTransportID", "-1"))) {
        return NPT_FAILURE;
    }
    if (NPT_FAILED(action->SetArgumentValue("ProtocolInfo", "http-get:*:*:*"))) {
        return NPT_FAILURE;
    }
    if (NPT_FAILED(action->SetArgumentValue("PeerConnectionManager", "/"))) {
        return NPT_FAILURE;
    }
    if (NPT_FAILED(action->SetArgumentValue("PeerConnectionID", "-1"))) {
        return NPT_FAILURE;
    }
    if (NPT_FAILED(action->SetArgumentValue("Direction", "Output"))) {
        return NPT_FAILURE;
    }
    if (NPT_FAILED(action->SetArgumentValue("Status", "Unknown"))) {
        return NPT_FAILURE;
    }

    return NPT_SUCCESS;
}

/*----------------------------------------------------------------------
|   PLT_MediaServer::OnBrowse
+---------------------------------------------------------------------*/
NPT_Result
CMediaCrawler::OnBrowse(PLT_ActionReference&          action, 
                        const NPT_HttpRequestContext& context)
{
    NPT_Result res;

    NPT_String object_id;
    if (NPT_FAILED(action->GetArgumentValue("ObjectId", object_id))) {
        NPT_LOG_WARNING("PLT_FileMediaServer::OnBrowse - invalid arguments.");
        return NPT_FAILURE;
    }

    NPT_LOG_FINE_1("PLT_FileMediaServer::OnOnBrowse - id = %s\r\n", (const char*)object_id);

    // extract server uuid and server object id from our object id
    NPT_String server_uuid;
    NPT_String server_object_id;
    if (NPT_FAILED(SplitObjectId(object_id, server_uuid, server_object_id))) {
        /* error */
        NPT_LOG_WARNING("CMediaCrawler::OnBrowse - ObjectID not found.");
        action->SetError(701, "No Such Object.");
        return NPT_FAILURE;
    }

    // root ?
    if (server_uuid.GetLength() == 0) {
        res = OnBrowseRoot(action);
    } else {
        // we have a device to browse
        // is it device root?
        if (server_object_id.GetLength() == 0) {
            server_object_id = "0";
        }
        res = OnBrowseDevice(action, server_uuid, server_object_id, context);
    }

    if (NPT_FAILED(res) && (action->GetErrorCode() == 0)) {
        action->SetError(800, "Internal error");
    }

    return res;
}

NPT_Result GPAC_MediaRenderer::OnSeek(PLT_ActionReference& action)
{
	u32 h, m, s;
	Double time;
    NPT_String unit, target;
    if (NPT_FAILED(action->GetArgumentValue("Unit", unit))) {
        return NPT_FAILURE;
	}
    if (NPT_FAILED(action->GetArgumentValue("Target", target))) {
        return NPT_FAILURE;
	}
	if ((unit!="ABS_TIME") && (unit!="REL_TIME")) {
		action->SetError(710,"Seek mode not supported");
        return NPT_FAILURE;
	}
	sscanf(target, "%d:%d:%d", &h, &m, &s);
	time = h*3600.0 + m*60.0 + s;
	m_pUPnP->OnSeek(time);
    return NPT_SUCCESS;
}

/*----------------------------------------------------------------------
|   PLT_MediaServer::OnAction
+---------------------------------------------------------------------*/
NPT_Result
PLT_MediaServer::OnAction(PLT_ActionReference&          action, 
                          const PLT_HttpRequestContext& context)
{
    /* parse the action name */
    NPT_String name = action->GetActionDesc().GetName();
                   
    // ContentDirectory
    if (name.Compare("Browse", true) == 0) {
        return OnBrowse(action, context);
    }
    if (name.Compare("Search", true) == 0) {
        return OnSearch(action, context);
    }
    if (name.Compare("UpdateObject", true) == 0) {
        return OnUpdate(action, context);
    }
    if (name.Compare("GetSystemUpdateID", true) == 0) {
        return OnGetSystemUpdateID(action, context);
    }
    if (name.Compare("GetSortCapabilities", true) == 0) {
        return OnGetSortCapabilities(action, context);
    }  
    if (name.Compare("GetSearchCapabilities", true) == 0) {
        return OnGetSearchCapabilities(action, context);
    }  

    // ConnectionMananger
    if (name.Compare("GetCurrentConnectionIDs", true) == 0) {
        return OnGetCurrentConnectionIDs(action, context);
    }
    if (name.Compare("GetProtocolInfo", true) == 0) {
        return OnGetProtocolInfo(action, context);
    }    
    if (name.Compare("GetCurrentConnectionInfo", true) == 0) {
        return OnGetCurrentConnectionInfo(action, context);
    }

    action->SetError(401,"No Such Action.");
    return NPT_SUCCESS;
}

/*----------------------------------------------------------------------
|   PLT_FileMediaServer::OnBrowseDirectChildren
+---------------------------------------------------------------------*/
NPT_Result
PLT_FileMediaServer::OnBrowseDirectChildren(PLT_ActionReference& action, 
                                            const char*          object_id, 
                                            NPT_SocketInfo*      info /* = NULL */)
{
    /* locate the file from the object ID */
    NPT_String dir;
    if (NPT_FAILED(GetFilePath(object_id, dir))) {
        /* error */
        NPT_LOG_WARNING("PLT_FileMediaServer::OnBrowse - ObjectID not found.");
        action->SetError(701, "No Such Object.");
        return NPT_FAILURE;
    }

    /* retrieve the item type */
    NPT_DirectoryEntryInfo entry_info;
    NPT_Result res = NPT_DirectoryEntry::GetInfo(dir, entry_info);
    if (NPT_FAILED(res)) {
        /* Object does not exist */
        action->SetError(800, "Can't retrieve info " + dir);
        return NPT_FAILURE;
    }

    if (entry_info.type != NPT_DIRECTORY_TYPE) {
        /* error */
        NPT_LOG_WARNING("PLT_FileMediaServer::OnBrowse - BROWSEDIRECTCHILDREN not allowed on an item.");
        action->SetError(710, "item is not a container.");
        return NPT_FAILURE;
    }

    NPT_String filter;
    NPT_String startingInd;
    NPT_String reqCount;

    NPT_CHECK_SEVERE(action->GetArgumentValue("Filter", filter));
    NPT_CHECK_SEVERE(action->GetArgumentValue("StartingIndex", startingInd));
    NPT_CHECK_SEVERE(action->GetArgumentValue("RequestedCount", reqCount));   

    unsigned long start_index, req_count;
    if (NPT_FAILED(startingInd.ToInteger(start_index)) ||
        NPT_FAILED(reqCount.ToInteger(req_count))) {
        return NPT_FAILURE;
    }

    NPT_String path = dir;
    if (!path.EndsWith(m_DirDelimiter)) {
        path += m_DirDelimiter;
    }

    /* start iterating through the directory */
    NPT_Directory directory(path);
    NPT_String    entryName;
    res = directory.GetNextEntry(entryName);
    if (NPT_FAILED(res)) {
        NPT_LOG_WARNING_1("PLT_FileMediaServer::OnBrowseDirectChildren - failed to open dir %s", (const char*) path);
        return res;
    }

    unsigned long cur_index = 0;
    unsigned long num_returned = 0;
    unsigned long total_matches = 0;
    //unsigned long update_id = 0;
    NPT_String didl = didl_header;
    PLT_MediaObjectReference item;
    do {
        item = BuildFromFilePath(path + entryName, true, info);
        if (!item.IsNull()) {
            if ((cur_index >= start_index) && ((num_returned < req_count) || (req_count == 0))) {
                NPT_String tmp;
                NPT_CHECK_SEVERE(PLT_Didl::ToDidl(*item.AsPointer(), filter, tmp));

                didl += tmp;
                num_returned++;
            }
            cur_index++;
            total_matches++;        
        }
        res = directory.GetNextEntry(entryName);
    } while (NPT_SUCCEEDED(res));

    didl += didl_footer;

    NPT_CHECK_SEVERE(action->SetArgumentValue("Result", didl));

    NPT_CHECK_SEVERE(action->SetArgumentValue("NumberReturned", NPT_String::FromInteger(num_returned)));

    NPT_CHECK_SEVERE(action->SetArgumentValue("TotalMatches", NPT_String::FromInteger(total_matches)));

    NPT_CHECK_SEVERE(action->SetArgumentValue("UpdateId", "1"));

    return NPT_SUCCESS;
}

/*----------------------------------------------------------------------
|   PLT_MediaRenderer::OnAction
+---------------------------------------------------------------------*/
NPT_Result
PLT_MediaRenderer::OnAction(PLT_ActionReference& action, NPT_SocketInfo* info /* = NULL */)
{
    NPT_COMPILER_UNUSED(info);

    /* parse the action name */
    NPT_String name = action->GetActionDesc()->GetName();

    /* Is it a ConnectionManager Service Action ? */
    if (name.Compare("GetCurrentConnectionIDs", true) == 0) {
        if (NPT_FAILED(action->SetArgumentsOutFromStateVariable())) {
            return NPT_FAILURE;
        }
        return NPT_SUCCESS;
    }
    if (name.Compare("GetProtocolInfo", true) == 0) {
        if (NPT_FAILED(action->SetArgumentsOutFromStateVariable())) {
            return NPT_FAILURE;
        }
        return NPT_SUCCESS;
    }    
    if (name.Compare("GetCurrentConnectionInfo", true) == 0) {
        return OnGetCurrentConnectionInfo(action);
    }  

    /* Is it a AVTransport Service Action ? */

    // since all actions take an instance ID and we only support 1 instance
    // verify that the Instance ID is 0 and return an error here now if not
    NPT_String serviceType = action->GetActionDesc()->GetService()->GetServiceType();
    if (serviceType.Compare("urn:schemas-upnp-org:service:AVTransport:1", true) == 0) {
        if (NPT_FAILED(action->VerifyArgumentValue("InstanceID", "0"))) {
            action->SetError(802,"Not valid InstanceID.");
            return NPT_FAILURE;
        }
    }

    if (name.Compare("GetCurrentTransportActions", true) == 0) {
        if (NPT_FAILED(action->SetArgumentsOutFromStateVariable())) {
            return NPT_FAILURE;
        }
        return NPT_SUCCESS;
    }
    if (name.Compare("GetDeviceCapabilities", true) == 0) {
        if (NPT_FAILED(action->SetArgumentsOutFromStateVariable())) {
            return NPT_FAILURE;
        }
        return NPT_SUCCESS;
    }
    if (name.Compare("GetMediaInfo", true) == 0) {
        if (NPT_FAILED(action->SetArgumentsOutFromStateVariable())) {
            return NPT_FAILURE;
        }
        return NPT_SUCCESS;
    }
    if (name.Compare("GetPositionInfo", true) == 0) {
        if (NPT_FAILED(action->SetArgumentsOutFromStateVariable())) {
            return NPT_FAILURE;
        }
        return NPT_SUCCESS;
    }
    if (name.Compare("GetTransportInfo", true) == 0) {
        if (NPT_FAILED(action->SetArgumentsOutFromStateVariable())) {
            return NPT_FAILURE;
        }
        return NPT_SUCCESS;
    }
    if (name.Compare("GetTransportSettings", true) == 0) {
        if (NPT_FAILED(action->SetArgumentsOutFromStateVariable())) {
            return NPT_FAILURE;
        }
        return NPT_SUCCESS;
    }
    if (name.Compare("Next", true) == 0) {
        return OnNext(action);
    }
    if (name.Compare("Pause", true) == 0) {
        return OnPause(action);
    }
    if (name.Compare("Play", true) == 0) {
        return OnPlay(action);
    }
    if (name.Compare("Previous", true) == 0) {
        return OnPrevious(action);
    }
    if (name.Compare("Seek", true) == 0) {
        return OnSeek(action);
    }
    if (name.Compare("Stop", true) == 0) {
        return OnStop(action);
    }
    if (name.Compare("SetAVTransportURI", true) == 0) {
        return OnSetAVTransportURI(action);
    }
    if (name.Compare("SetPlayMode", true) == 0) {
        return OnSetPlayMode(action);
    }
//.........这里部分代码省略.........

/*----------------------------------------------------------------------
|   CMediaCrawler::OnBrowseRoot
+---------------------------------------------------------------------*/
NPT_Result
CMediaCrawler::OnBrowseRoot(PLT_ActionReference& action)
{
    NPT_String browseFlagValue;
    if (NPT_FAILED(action->GetArgumentValue("BrowseFlag", browseFlagValue))) {
        NPT_LOG_WARNING("PLT_FileMediaServer::OnBrowse - invalid arguments.");
        return NPT_FAILURE;
    }

    /* extract browseFlag */
    BrowseFlags browseFlag;
    if (NPT_FAILED(GetBrowseFlag(browseFlagValue, browseFlag))) {
        /* error */
        NPT_LOG_WARNING("PLT_FileMediaServer::OnBrowseRoot - BrowseFlag value not allowed.");
        action->SetError(402,"Invalid BrowseFlag arg.");
        return NPT_FAILURE;
    }

    if (browseFlag == BROWSEMETADATA) {
        PLT_MediaContainer item;
        item.m_Title = "Root";
        item.m_ParentID = "-1";
        item.m_ObjectID = "0";
        item.m_ChildrenCount = GetMediaServers().GetItemCount();
        item.m_ObjectClass.type = "object.container";

        /* convert item to didl */
        NPT_String filter;
        action->GetArgumentValue("Filter", filter);
        NPT_String tmp;
        NPT_CHECK_SEVERE(PLT_Didl::ToDidl(item, filter, tmp));

        /* add didl header and footer */
        NPT_String didl = didl_header + tmp + didl_footer;

        action->SetArgumentValue("Result", didl);
        action->SetArgumentValue("NumberReturned", "1");
        action->SetArgumentValue("TotalMatches", "1");

        // update ID may be wrong here, it should be the one of the container?
        action->SetArgumentValue("UpdateId", "1");
        // TODO: We need to keep track of the overall updateID of the CDS
    } else {
        NPT_String startingInd;
        NPT_String reqCount;
        NPT_String filter;

        NPT_CHECK_SEVERE(action->GetArgumentValue("StartingIndex", startingInd));
        NPT_CHECK_SEVERE(action->GetArgumentValue("RequestedCount", reqCount));   
        NPT_CHECK_SEVERE(action->GetArgumentValue("Filter", filter));

        unsigned long start_index, req_count;
        if (NPT_FAILED(startingInd.ToInteger(start_index)) ||
            NPT_FAILED(reqCount.ToInteger(req_count))) {
            return NPT_FAILURE;
        }   
                    
        unsigned long cur_index = 0;
        unsigned long num_returned = 0;
        unsigned long total_matches = 0;
        //unsigned long update_id = 0;
        PLT_MediaContainer item;
        NPT_String tmp;
        NPT_String didl = didl_header;

        // populate a list of containers (one container per known servers)
        const NPT_Lock<PLT_DeviceDataReferenceList>& devices = GetMediaServers();
        NPT_Lock<PLT_DeviceDataReferenceList>::Iterator entry = devices.GetFirstItem();
        while (entry) {
            PLT_DeviceDataReference device = (*entry);
            item.m_Title = device->GetFriendlyName();
            item.m_ObjectID = FormatObjectId(device->GetUUID(), "0");
            item.m_ParentID = "0";
            item.m_ObjectClass.type = "object.container";

            if ((cur_index >= start_index) && ((num_returned < req_count) || (req_count == 0))) {
                NPT_CHECK_SEVERE(PLT_Didl::ToDidl(item, filter, tmp));

                didl += tmp;
                num_returned++;
            }
            cur_index++;
            total_matches++;  

            ++entry;
        }

        didl += didl_footer;

        action->SetArgumentValue("Result", didl);
        action->SetArgumentValue("NumberReturned", NPT_String::FromInteger(num_returned));
        action->SetArgumentValue("TotalMatches", NPT_String::FromInteger(total_matches));
        action->SetArgumentValue("UpdateId", "1");
    }

    return NPT_SUCCESS;
}

/*----------------------------------------------------------------------
|   PLT_MediaRenderer::OnAction
+---------------------------------------------------------------------*/
NPT_Result
PLT_MediaRenderer::OnAction(PLT_ActionReference&          action,
                            const PLT_HttpRequestContext& context)
{
    NPT_COMPILER_UNUSED(context);

    /* parse the action name */
    NPT_String name = action->GetActionDesc().GetName();

    // since all actions take an instance ID and we only support 1 instance
    // verify that the Instance ID is 0 and return an error here now if not
    NPT_String serviceType = action->GetActionDesc().GetService()->GetServiceType();
    if (serviceType.Compare("urn:schemas-upnp-org:service:AVTransport:1", true) == 0) {
        if (NPT_FAILED(action->VerifyArgumentValue("InstanceID", "0"))) {
            action->SetError(718, "Not valid InstanceID");
            return NPT_FAILURE;
        }
    }
    serviceType = action->GetActionDesc().GetService()->GetServiceType();
    if (serviceType.Compare("urn:schemas-upnp-org:service:RenderingControl:1", true) == 0) {
        if (NPT_FAILED(action->VerifyArgumentValue("InstanceID", "0"))) {
            action->SetError(702, "Not valid InstanceID");
            return NPT_FAILURE;
        }
    }

    /* Is it a ConnectionManager Service Action ? */
    if (name.Compare("GetCurrentConnectionInfo", true) == 0) {
        return OnGetCurrentConnectionInfo(action);
    }

    /* Is it a AVTransport Service Action ? */
    if (name.Compare("Next", true) == 0) {
        return OnNext(action);
    }
    if (name.Compare("Pause", true) == 0) {
        return OnPause(action);
    }
    if (name.Compare("Play", true) == 0) {
        return OnPlay(action);
    }
    if (name.Compare("Previous", true) == 0) {
        return OnPrevious(action);
    }
    if (name.Compare("Seek", true) == 0) {
        return OnSeek(action);
    }
    if (name.Compare("Stop", true) == 0) {
        return OnStop(action);
    }
    if (name.Compare("SetAVTransportURI", true) == 0) {
        return OnSetAVTransportURI(action);
    }
    if (name.Compare("SetNextAVTransportURI", true) == 0) {
        return OnSetNextAVTransportURI(action);
    }
    if (name.Compare("SetPlayMode", true) == 0) {
        return OnSetPlayMode(action);
    }

    /* Is it a RendererControl Service Action ? */
    if (name.Compare("SetVolume", true) == 0) {
        return OnSetVolume(action);
    }
    if (name.Compare("SetVolumeDB", true) == 0) {
        return OnSetVolumeDB(action);
    }
    if (name.Compare("GetVolumeDBRange", true) == 0) {
        return OnGetVolumeDBRange(action);

    }
    if (name.Compare("SetMute", true) == 0) {
        return OnSetMute(action);
    }

    // other actions rely on state variables
    NPT_CHECK_LABEL_WARNING(action->SetArgumentsOutFromStateVariable(), failure);
    return NPT_SUCCESS;

failure:
    action->SetError(401,"No Such Action.");
    return NPT_FAILURE;
}

NPT_Result
GPAC_MediaRenderer::OnAction(PLT_ActionReference&          action,
                            const PLT_HttpRequestContext& context)
{
    NPT_COMPILER_UNUSED(context);

    /* parse the action name */
    NPT_String name = action->GetActionDesc().GetName();

	m_ip_src = context.GetRemoteAddress().GetIpAddress().ToString();

	/* Is it a ConnectionManager Service Action ? */
    if (name.Compare("GetCurrentConnectionIDs", true) == 0) {
        if (NPT_FAILED(action->SetArgumentsOutFromStateVariable())) {
            return NPT_FAILURE;
        }
        return NPT_SUCCESS;
    }
    if (name.Compare("GetProtocolInfo", true) == 0) {
        if (NPT_FAILED(action->SetArgumentsOutFromStateVariable())) {
            return NPT_FAILURE;
        }
        return NPT_SUCCESS;
    }
    if (name.Compare("GetCurrentConnectionInfo", true) == 0) {
        return OnGetCurrentConnectionInfo(action);
    }
    if (name.Compare("StopForMigration", true) == 0) {
		NPT_String res = m_pUPnP->OnMigrate();
        m_pMigrationService->SetStateVariable("MigrationStatus", "OK");
        m_pMigrationService->SetStateVariable("MigrationMetaData", res);

		if (NPT_FAILED(action->SetArgumentsOutFromStateVariable())) {
            return NPT_FAILURE;
        }
        return NPT_SUCCESS;
    }

    /* Is it a AVTransport Service Action ? */

    // since all actions take an instance ID and we only support 1 instance
    // verify that the Instance ID is 0 and return an error here now if not
    NPT_String serviceType = action->GetActionDesc().GetService()->GetServiceType();
    if (serviceType.Compare("urn:schemas-upnp-org:service:AVTransport:1", true) == 0) {
        if (NPT_FAILED(action->VerifyArgumentValue("InstanceID", "0"))) {
            action->SetError(802,"Not valid InstanceID.");
            return NPT_FAILURE;
        }
    }

    if (name.Compare("GetCurrentTransportActions", true) == 0) {
        if (NPT_FAILED(action->SetArgumentsOutFromStateVariable())) {
            return NPT_FAILURE;
        }
        return NPT_SUCCESS;
    }
    if (name.Compare("GetDeviceCapabilities", true) == 0) {
        if (NPT_FAILED(action->SetArgumentsOutFromStateVariable())) {
            return NPT_FAILURE;
        }
        return NPT_SUCCESS;
    }
    if (name.Compare("GetMediaInfo", true) == 0) {
        if (NPT_FAILED(action->SetArgumentsOutFromStateVariable())) {
            return NPT_FAILURE;
        }
        return NPT_SUCCESS;
    }
    if (name.Compare("GetPositionInfo", true) == 0) {
		if (m_pUPnP->m_pTerm->root_scene) {
			char szVal[100];

			m_pAVService->SetStateVariable("CurrentTrack", "0");
			format_time_string(szVal, m_Duration);
			m_pAVService->SetStateVariable("CurrentTrackDuration", szVal);

			m_pAVService->SetStateVariable("CurrentTrackMetadata", "");
			m_pAVService->SetStateVariable("CurrentTrackURI", "");
			format_time_string(szVal, m_Time);
			m_pAVService->SetStateVariable("RelativeTimePosition", szVal);
			m_pAVService->SetStateVariable("AbsoluteTimePosition", szVal);
			m_pAVService->SetStateVariable("RelativeCounterPosition", "2147483647"); // means NOT_IMPLEMENTED
			m_pAVService->SetStateVariable("AbsoluteCounterPosition", "2147483647"); // means NOT_IMPLEMENTED
		} else {
			if (NPT_FAILED(action->SetArgumentsOutFromStateVariable())) {
				return NPT_FAILURE;
			}
		}
        return NPT_SUCCESS;
    }
    if (name.Compare("GetTransportInfo", true) == 0) {
        if (NPT_FAILED(action->SetArgumentsOutFromStateVariable())) {
            return NPT_FAILURE;
        }
        return NPT_SUCCESS;
    }
    if (name.Compare("GetTransportSettings", true) == 0) {
        if (NPT_FAILED(action->SetArgumentsOutFromStateVariable())) {
            return NPT_FAILURE;
        }
//.........这里部分代码省略.........

/*----------------------------------------------------------------------
|   PLT_MediaServer::OnSearch
+---------------------------------------------------------------------*/
NPT_Result
PLT_MediaServer::OnSearch(PLT_ActionReference&          action, 
                          const PLT_HttpRequestContext& context)
{
    NPT_COMPILER_UNUSED(context);

    NPT_Result res;
    NPT_String container_id;
    NPT_String search;
	NPT_String filter;
    NPT_String start;
    NPT_String count;
    NPT_String sort;
    NPT_List<NPT_String> sort_list;

    if (NPT_FAILED(action->GetArgumentValue("ContainerId", container_id)) ||
        NPT_FAILED(action->GetArgumentValue("SearchCriteria", search)) || 
		NPT_FAILED(action->GetArgumentValue("Filter",  filter)) ||
        NPT_FAILED(action->GetArgumentValue("StartingIndex",  start)) || 
        NPT_FAILED(action->GetArgumentValue("RequestedCount",  count)) || 
        NPT_FAILED(action->GetArgumentValue("SortCriteria",  sort))) {
        NPT_LOG_WARNING("Missing arguments");
        action->SetError(402, "Invalid args");
        return NPT_SUCCESS;
    }
    
    /* convert index and counts to int */
    NPT_UInt32 starting_index, requested_count;
    if (NPT_FAILED(start.ToInteger(starting_index)) ||
        NPT_FAILED(count.ToInteger(requested_count))) {       
        NPT_LOG_WARNING_2("Invalid arguments (%s, %s)", 
            start.GetChars(), count.GetChars());
        action->SetError(402, "Invalid args");
        return NPT_FAILURE;
    }
    
    /* parse sort criteria */
    if (NPT_FAILED(ParseSort(sort, sort_list))) {
        NPT_LOG_WARNING_1("Unsupported or invalid sort criteria error (%s)", 
            sort.GetChars());
        action->SetError(709, "Unsupported or invalid sort criteria error");
        return NPT_FAILURE;
    }
    
    NPT_LOG_INFO_5("Processing Search from %s with id=\"%s\", search=\"%s\", start=%d, count=%d", 
                   (const char*)context.GetRemoteAddress().GetIpAddress().ToString(),
                   (const char*)container_id,
                   (const char*)search,
                   starting_index,
                   requested_count);
                       
    if (search.IsEmpty() || search == "*") {
        res = OnBrowseDirectChildren(
            action, 
            container_id,
			filter,
            starting_index, 
            requested_count, 
            sort, 
            context);
    } else {
        res = OnSearchContainer(
            action, 
            container_id, 
            search, 
			filter,
            starting_index, 
            requested_count, 
            sort,
            context);
    }

    if (NPT_FAILED(res) && (action->GetErrorCode() == 0)) {
        action->SetError(800, "Internal error");
    }

    return res;
}

/*----------------------------------------------------------------------
|   PLT_MediaServer::OnBrowse
+---------------------------------------------------------------------*/
NPT_Result
PLT_MediaServer::OnBrowse(PLT_ActionReference&          action, 
                          const PLT_HttpRequestContext& context)
{
    NPT_Result res;
    NPT_String object_id;
    NPT_String browse_flag_val;    
    NPT_String filter;
    NPT_String start;
    NPT_String count;
    NPT_String sort;
    NPT_List<NPT_String> sort_list;

    if (NPT_FAILED(action->GetArgumentValue("ObjectId", object_id)) || 
        NPT_FAILED(action->GetArgumentValue("BrowseFlag",  browse_flag_val)) || 
        NPT_FAILED(action->GetArgumentValue("Filter",  filter)) || 
        NPT_FAILED(action->GetArgumentValue("StartingIndex",  start)) || 
        NPT_FAILED(action->GetArgumentValue("RequestedCount",  count)) || 
        NPT_FAILED(action->GetArgumentValue("SortCriteria",  sort))) {
        NPT_LOG_WARNING("Missing arguments");
        action->SetError(402, "Invalid args");
        return NPT_SUCCESS;
    }

    /* extract flag */
    BrowseFlags flag;
    if (NPT_FAILED(ParseBrowseFlag(browse_flag_val, flag))) {
        /* error */
        NPT_LOG_WARNING_1("BrowseFlag value not allowed (%s)", (const char*)browse_flag_val);
        action->SetError(402, "Invalid args");
        return NPT_SUCCESS;
    }
    
    /* convert index and counts to int */
    NPT_UInt32 starting_index, requested_count;
    if (NPT_FAILED(start.ToInteger(starting_index)) ||
        NPT_FAILED(count.ToInteger(requested_count)) ||
        PLT_Didl::ConvertFilterToMask(filter) == 0) {       
        NPT_LOG_WARNING_3("Invalid arguments (%s, %s, %s)", 
            start.GetChars(), count.GetChars(), filter.GetChars());
        action->SetError(402, "Invalid args");
        return NPT_FAILURE;
    }
    
    /* parse sort criteria for validation */
    if (NPT_FAILED(ParseSort(sort, sort_list))) {
        NPT_LOG_WARNING_1("Unsupported or invalid sort criteria error (%s)", 
            sort.GetChars());
        action->SetError(709, "Unsupported or invalid sort criteria error");
        return NPT_FAILURE;
    }
    
    NPT_LOG_FINE_6("Processing %s from %s with id=\"%s\", filter=\"%s\", start=%d, count=%d", 
                   (const char*)browse_flag_val, 
                   (const char*)context.GetRemoteAddress().GetIpAddress().ToString(),
                   (const char*)object_id,
                   (const char*)filter,
                   starting_index,
                   requested_count);

    /* Invoke the browse function */
    if (flag == BROWSEMETADATA) {
        res = OnBrowseMetadata(
            action, 
            object_id, 
            filter, 
            starting_index, 
            requested_count, 
            sort, 
            context);
    } else {
        res = OnBrowseDirectChildren(
            action, 
            object_id, 
            filter, 
            starting_index, 
            requested_count, 
            sort, 
            context);
    }

    if (NPT_FAILED(res) && (action->GetErrorCode() == 0)) {
        action->SetError(800, "Internal error");
    }

    return res;
}