Fix windowsupdate package missing in fresh clones

aggregator-agent/pkg/windowsupdate/iupdatesearcher.go

@@ -0,0 +1,99 @@
+/*
+Copyright 2022 Zheng Dayu
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+    http://www.apache.org/licenses/LICENSE-2.0
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package windowsupdate
+
+import (
+	"github.com/go-ole/go-ole"
+	"github.com/go-ole/go-ole/oleutil"
+)
+
+// IUpdateSearcher searches for updates on a server.
+// https://docs.microsoft.com/en-us/windows/win32/api/wuapi/nn-wuapi-iupdatesearcher
+type IUpdateSearcher struct {
+	disp                                *ole.IDispatch
+	CanAutomaticallyUpgradeService      bool
+	ClientApplicationID                 string
+	IncludePotentiallySupersededUpdates bool
+	Online                              bool
+	ServerSelection                     int32
+	ServiceID                           string
+}
+
+func toIUpdateSearcher(updateSearcherDisp *ole.IDispatch) (*IUpdateSearcher, error) {
+	var err error
+	iUpdateSearcher := &IUpdateSearcher{
+		disp: updateSearcherDisp,
+	}
+
+	if iUpdateSearcher.CanAutomaticallyUpgradeService, err = toBoolErr(oleutil.GetProperty(updateSearcherDisp, "CanAutomaticallyUpgradeService")); err != nil {
+		return nil, err
+	}
+
+	if iUpdateSearcher.ClientApplicationID, err = toStringErr(oleutil.GetProperty(updateSearcherDisp, "ClientApplicationID")); err != nil {
+		return nil, err
+	}
+
+	if iUpdateSearcher.IncludePotentiallySupersededUpdates, err = toBoolErr(oleutil.GetProperty(updateSearcherDisp, "IncludePotentiallySupersededUpdates")); err != nil {
+		return nil, err
+	}
+
+	if iUpdateSearcher.Online, err = toBoolErr(oleutil.GetProperty(updateSearcherDisp, "Online")); err != nil {
+		return nil, err
+	}
+
+	if iUpdateSearcher.ServerSelection, err = toInt32Err(oleutil.GetProperty(updateSearcherDisp, "ServerSelection")); err != nil {
+		return nil, err
+	}
+
+	if iUpdateSearcher.ServiceID, err = toStringErr(oleutil.GetProperty(updateSearcherDisp, "ServiceID")); err != nil {
+		return nil, err
+	}
+
+	return iUpdateSearcher, nil
+}
+
+// Search performs a synchronous search for updates. The search uses the search options that are currently configured.
+// https://docs.microsoft.com/en-us/windows/win32/api/wuapi/nf-wuapi-iupdatesearcher-search
+func (iUpdateSearcher *IUpdateSearcher) Search(criteria string) (*ISearchResult, error) {
+	searchResultDisp, err := toIDispatchErr(oleutil.CallMethod(iUpdateSearcher.disp, "Search", criteria))
+	if err != nil {
+		return nil, err
+	}
+	return toISearchResult(searchResultDisp)
+}
+
+// QueryHistory synchronously queries the computer for the history of the update events.
+// https://docs.microsoft.com/en-us/windows/win32/api/wuapi/nf-wuapi-iupdatesearcher-queryhistory
+func (iUpdateSearcher *IUpdateSearcher) QueryHistory(startIndex int32, count int32) ([]*IUpdateHistoryEntry, error) {
+	updateHistoryEntriesDisp, err := toIDispatchErr(oleutil.CallMethod(iUpdateSearcher.disp, "QueryHistory", startIndex, count))
+	if err != nil {
+		return nil, err
+	}
+	return toIUpdateHistoryEntries(updateHistoryEntriesDisp)
+}
+
+// GetTotalHistoryCount returns the number of update events on the computer.
+// https://docs.microsoft.com/en-us/windows/win32/api/wuapi/nf-wuapi-iupdatesearcher-gettotalhistorycount
+func (iUpdateSearcher *IUpdateSearcher) GetTotalHistoryCount() (int32, error) {
+	return toInt32Err(oleutil.CallMethod(iUpdateSearcher.disp, "GetTotalHistoryCount"))
+}
+
+// QueryHistoryAll synchronously queries the computer for the history of all update events.
+func (iUpdateSearcher *IUpdateSearcher) QueryHistoryAll() ([]*IUpdateHistoryEntry, error) {
+	count, err := iUpdateSearcher.GetTotalHistoryCount()
+	if err != nil {
+		return nil, err
+	}
+	return iUpdateSearcher.QueryHistory(0, count)
+}