建立來源起始的訂用帳戶
來源起始的訂用帳戶可讓您在事件收集器計算機上定義訂用帳戶,而不定義事件來源計算機,然後可以設定多個遠端事件來源電腦(使用組策略設定)將事件轉送至事件收集器計算機。 在本機計算機可以訂閱事件,而遠端計算機可以轉送事件之前,必須設定這兩部計算機才能收集事件和事件轉送。 如需如何設定計算機的詳細資訊,請參閱 設定來源起始的訂用帳戶。
下列程式代碼範例會遵循一系列步驟來建立來源起始的訂用帳戶,其中事件來源位於與事件收集器計算機相同的網域中。
以程式設計方式建立來源起始的訂用帳戶
- 提供訂用帳戶名稱和訪問許可權作為 EcOpenSubscription 函式的參數,以開啟訂用帳戶。 如需訪問許可權的詳細資訊,請參閱 Windows 事件收集器常數。
- 呼叫 EcSetSubscriptionProperty 函式來設定訂用帳戶的屬性。 如需可設定之訂用帳戶屬性的詳細資訊,請參閱 EC_SUBSCRIPTION_PROPERTY_ID 列舉。
- 呼叫 EcSaveSubscription 函式以儲存訂用帳戶。
- 呼叫 EcClose 函式以關閉訂用帳戶。
下列C++範例示範如何建立來源起始的訂用帳戶:
#include <windows.h>
#include <iostream>
using namespace std;
#include <string>
#include <xstring>
#include <conio.h>
#include <EvColl.h>
#include <vector>
#include <wincred.h>
#pragma comment(lib, "credui.lib")
#pragma comment(lib, "wecapi.lib")
// Track properties of the Subscription.
typedef struct _SUBSCRIPTION_SOURCE_INITIATED
{
std::wstring Name;
EC_SUBSCRIPTION_TYPE SubscriptionType;
std::wstring Description;
BOOL SubscriptionStatus;
std::wstring URI;
EC_SUBSCRIPTION_CONFIGURATION_MODE ConfigMode;
EC_SUBSCRIPTION_DELIVERY_MODE DeliveryMode;
DWORD MaxItems;
DWORD MaxLatencyTime;
DWORD HeartbeatInerval;
time_t Expires;
std::wstring Query;
BOOL ReadExistingEvents;
std::wstring TransportName;
EC_SUBSCRIPTION_CONTENT_FORMAT ContentFormat;
std::wstring DestinationLog;
std::wstring AllowedSourceNonDomainComputers;
std::wstring AllowedSourceDomainComputers;
} SUBSCRIPTION_SOURCE_INITIATED;
// Subscription Information
DWORD GetProperty(EC_HANDLE hSubscription,
EC_SUBSCRIPTION_PROPERTY_ID propID,
DWORD flags,
std::vector<BYTE>& buffer,
PEC_VARIANT& vProperty);
void __cdecl wmain()
{
LPVOID lpwszBuffer;
DWORD dwRetVal = ERROR_SUCCESS;
EC_HANDLE hSubscription;
EC_VARIANT vPropertyValue;
std::vector<BYTE> buffer;
PEC_VARIANT vProperty = NULL;
SUBSCRIPTION_SOURCE_INITIATED sub;
sub.Name = L"TestSubscription-SourceInitiated";
sub.SubscriptionType = EcSubscriptionTypeSourceInitiated;
sub.Description = L"A subscription that collects events that are published in\n" \
L"the Microsoft-Windows-TaskScheduler/Operational log and forwards them \n" \
L"to the ForwardedEvents log.";
sub.URI = L"http://schemas.microsoft.com/wbem/wsman/1/windows/EventLog";
sub.Query = L"<QueryList>" \
L"<Query Path=\"Microsoft-Windows-TaskScheduler/Operational\">" \
L"<Select>*</Select>" \
L"</Query>" \
L"</QueryList>";
sub.DestinationLog = L"ForwardedEvents";
sub.ConfigMode = EcConfigurationModeCustom;
sub.MaxItems = 5;
sub.MaxLatencyTime = 1000;
sub.HeartbeatInerval = 60000;
sub.DeliveryMode = EcDeliveryModePush;
sub.ContentFormat = EcContentFormatRenderedText;
sub.ReadExistingEvents = true;
sub.SubscriptionStatus = true;
sub.TransportName = L"http";
// This SDDL grants members of the Domain Computers domain group as well
// as members of the Network Service group (for the local forwarder),
// the ability to raise events for this subscription.
sub.AllowedSourceDomainComputers = L"O:NSG:NSD:(A;;GA;;;DC)(A;;GA;;;NS)";
// Step 1: Open the Event Collector subscription.
hSubscription = EcOpenSubscription(sub.Name.c_str(),
EC_READ_ACCESS | EC_WRITE_ACCESS,
EC_CREATE_NEW);
if ( !hSubscription)
{
dwRetVal = GetLastError();
goto Cleanup;
}
// Step 2: Define the subscription properties.
// Set the subscription type property (collector initiated).
vPropertyValue.Type = EcVarTypeUInt32;
vPropertyValue.UInt32Val = sub.SubscriptionType;
if (!EcSetSubscriptionProperty(hSubscription,
EcSubscriptionType,
NULL,
&vPropertyValue))
{
dwRetVal = GetLastError();
goto Cleanup;
}
// Set the Description property that contains a description
// of the subscription.
vPropertyValue.Type = EcVarTypeString;
vPropertyValue.StringVal = sub.Description.c_str();
if (!EcSetSubscriptionProperty(hSubscription,
EcSubscriptionDescription,
NULL,
&vPropertyValue))
{
dwRetVal = GetLastError();
goto Cleanup;
}
// Set the URI property that specifies the URI of all the event sources.
vPropertyValue.Type = EcVarTypeString;
vPropertyValue.StringVal = sub.URI.c_str();
if (!EcSetSubscriptionProperty(hSubscription,
EcSubscriptionURI,
NULL,
&vPropertyValue))
{
dwRetVal = GetLastError();
goto Cleanup;
}
// Set the Query property that defines the query used by the event
// source to select events that are forwarded to the event collector.
vPropertyValue.Type = EcVarTypeString;
vPropertyValue.StringVal = sub.Query.c_str();
if (!EcSetSubscriptionProperty(hSubscription,
EcSubscriptionQuery,
NULL,
&vPropertyValue))
{
dwRetVal = GetLastError();
goto Cleanup;
}
// Set the Log File property that specifies where the forwarded events
// will be stored.
vPropertyValue.Type = EcVarTypeString;
vPropertyValue.StringVal = sub.DestinationLog.c_str();
if (!EcSetSubscriptionProperty(hSubscription,
EcSubscriptionLogFile,
NULL,
&vPropertyValue))
{
dwRetVal = GetLastError();
goto Cleanup;
}
// Set the ConfigurationMode property that specifies the mode in which events
// are delivered.
vPropertyValue.Type = EcVarTypeUInt32;
vPropertyValue.UInt32Val = sub.ConfigMode;
if (!EcSetSubscriptionProperty(hSubscription,
EcSubscriptionConfigurationMode,
NULL,
&vPropertyValue))
{
dwRetVal = GetLastError();
goto Cleanup;
}
// If the Configuration Mode is Custom, set the DeliveryMode, DeliveryMaxItems,
// HeartbeatInterval, and DeliveryMaxLatencyTime properties.
if ( sub.ConfigMode == EcConfigurationModeCustom)
{
// Set the DeliveryMode property that defines how events are delivered.
// Events can be delivered through either a push or pull model.
vPropertyValue.Type = EcVarTypeUInt32;
vPropertyValue.UInt32Val = sub.DeliveryMode;
if (!EcSetSubscriptionProperty(hSubscription,
EcSubscriptionDeliveryMode,
NULL,
&vPropertyValue))
{
dwRetVal = GetLastError();
goto Cleanup;
}
// Set the DeliveryMaxItems property that specifies the maximum number of
// events that can be batched when forwarded from the event sources.
vPropertyValue.Type = EcVarTypeUInt32;
vPropertyValue.UInt32Val = sub.MaxItems;
if (!EcSetSubscriptionProperty(hSubscription,
EcSubscriptionDeliveryMaxItems,
NULL,
&vPropertyValue))
{
dwRetVal = GetLastError();
goto Cleanup;
}
// Set the HeartbeatInterval property that defines the time interval, in
// seconds, that is observed between the heartbeat messages.
vPropertyValue.Type = EcVarTypeUInt32;
vPropertyValue.UInt32Val = sub.HeartbeatInerval;
if (!EcSetSubscriptionProperty(hSubscription,
EcSubscriptionHeartbeatInterval,
NULL,
&vPropertyValue))
{
dwRetVal = GetLastError();
goto Cleanup;
}
// Set the DeliveryMaxLatencyTime property that specifies how long, in
// seconds, the event source should wait before forwarding events.
vPropertyValue.Type = EcVarTypeUInt32;
vPropertyValue.UInt32Val = sub.MaxLatencyTime;
if (!EcSetSubscriptionProperty(hSubscription,
EcSubscriptionDeliveryMaxLatencyTime,
NULL,
&vPropertyValue))
{
dwRetVal = GetLastError();
goto Cleanup;
}
}
// Set the ContentFormat property that specifies the format for the event content.
vPropertyValue.Type = EcVarTypeUInt32;
vPropertyValue.UInt32Val = sub.ContentFormat;
if (!EcSetSubscriptionProperty(hSubscription,
EcSubscriptionContentFormat,
0,
&vPropertyValue))
{
dwRetVal = GetLastError();
goto Cleanup;
}
// Set the ReadExistingEvents property that is used to enable or disable whether
// existing events are forwarded.
vPropertyValue.Type = EcVarTypeBoolean;
vPropertyValue.BooleanVal = sub.ReadExistingEvents;
if (!EcSetSubscriptionProperty(hSubscription,
EcSubscriptionReadExistingEvents,
0,
&vPropertyValue))
{
dwRetVal = GetLastError();
goto Cleanup;
}
// Set the Enabled property that is used to enable or disable the subscription
// or to obtain the current status of a subscription.
vPropertyValue.Type = EcVarTypeBoolean;
vPropertyValue.BooleanVal = sub.SubscriptionStatus;
if (!EcSetSubscriptionProperty(hSubscription,
EcSubscriptionEnabled,
0,
&vPropertyValue))
{
dwRetVal = GetLastError();
goto Cleanup;
}
// Set the TransportName property that determines the type of
// transport used by the subscription.
vPropertyValue.Type = EcVarTypeString;
vPropertyValue.StringVal = sub.TransportName.c_str();
if (!EcSetSubscriptionProperty(hSubscription,
EcSubscriptionTransportName,
0,
&vPropertyValue))
{
dwRetVal = GetLastError();
goto Cleanup;
}
// Required:
// Set the AllowedSourceDomainComputers property to the specified SDDL.
vPropertyValue.Type = EcVarTypeString;
vPropertyValue.StringVal = sub.AllowedSourceDomainComputers.c_str();
if (!EcSetSubscriptionProperty(hSubscription,
EcSubscriptionAllowedSourceDomainComputers,
0,
&vPropertyValue))
{
dwRetVal = GetLastError();
goto Cleanup;
}
//----------------------------------------------
// Step 3: Save the subscription.
// Save the subscription with the associated properties
// This will create the subscription and store it in the
// subscription repository
if( !EcSaveSubscription(hSubscription, NULL) )
{
dwRetVal = GetLastError();
goto Cleanup;
}
// Step 4: Close the subscription.
Cleanup:
if(hSubscription)
EcClose(hSubscription);
if (dwRetVal != ERROR_SUCCESS)
{
FormatMessageW( FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM,
NULL,
dwRetVal,
0,
(LPWSTR) &lpwszBuffer,
0,
NULL);
if (!lpwszBuffer)
{
wprintf(L"Failed to FormatMessage. Operation Error Code: %u." \
L"Error Code from FormatMessage: %u\n", dwRetVal, GetLastError());
return;
}
wprintf(L"\nFailed to Perform Operation.\nError Code: %u\n" \
L" Error Message: %s\n", dwRetVal, lpwszBuffer);
LocalFree(lpwszBuffer);
}
}
DWORD GetProperty(EC_HANDLE hSubscription,
EC_SUBSCRIPTION_PROPERTY_ID propID,
DWORD flags,
std::vector<BYTE>& buffer,
PEC_VARIANT& vProperty)
{
DWORD dwBufferSize, dwRetVal = ERROR_SUCCESS;
buffer.resize(sizeof(EC_VARIANT));
if (!hSubscription)
return ERROR_INVALID_PARAMETER;
// Get the value for the specified property.
if (!EcGetSubscriptionProperty(hSubscription,
propID,
flags,
(DWORD) buffer.size(),
(PEC_VARIANT)&buffer[0],
&dwBufferSize) )
{
dwRetVal = GetLastError();
if (ERROR_INSUFFICIENT_BUFFER == dwRetVal)
{
dwRetVal = ERROR_SUCCESS;
buffer.resize(dwBufferSize);
if (!EcGetSubscriptionProperty(hSubscription,
propID,
flags,
(DWORD) buffer.size(),
(PEC_VARIANT)&buffer[0],
&dwBufferSize))
{
dwRetVal = GetLastError();
}
}
}
if (dwRetVal == ERROR_SUCCESS)
{
vProperty = (PEC_VARIANT) &buffer[0];
}
else
{
vProperty = NULL;
}
return dwRetVal;
}
驗證訂用帳戶是否正常運作
在事件收集器電腦上,完成下列程式:
從提升的權限命令提示字元執行下列命令,以取得訂用帳戶的執行時間狀態:
wecutil gr <subscriptionID>
確認事件來源已連線。 在建立要連接事件來源的訂用帳戶之後,您可能需要等到原則中指定的重新整理間隔結束。
執行下列命令以取得訂用帳戶資訊:
wecutil gs <subscriptionID>
從訂用帳戶資訊取得 DeliveryMaxItems 值。
在事件來源計算機上,引發符合事件訂用帳戶查詢的事件。 必須引發 DeliveryMaxItems 事件數目,才能轉送事件。
在事件收集器計算機上,驗證事件是否已轉送至 ForwardedEvents 記錄檔或訂用帳戶中指定的記錄。
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