func (c *ElasticSearchStorage) SearchFlows(fsq flow.FlowSearchQuery) (*flow.FlowSet, error) {
if !c.client.Started() {
return nil, errors.New("ElasticSearchStorage is not yet started")
}
request, err := c.requestFromQuery(fsq)
if err != nil {
return nil, err
}
var query map[string]interface{}
if fsq.Filter != nil {
query = c.formatFilter(fsq.Filter)
}
request["query"] = query
if fsq.Sort {
request["sort"] = map[string]interface{}{
"Metric.Last": map[string]string{
"order": "desc",
},
}
}
out, err := c.sendRequest("flow", request)
if err != nil {
return nil, err
}
flowset := flow.NewFlowSet()
if out.Hits.Len() > 0 {
for _, d := range out.Hits.Hits {
f := new(flow.Flow)
if err := json.Unmarshal([]byte(*d.Source), f); err != nil {
return nil, err
}
flowset.Flows = append(flowset.Flows, f)
}
}
if fsq.Dedup {
if err := flowset.Dedup(fsq.DedupBy); err != nil {
return nil, err
}
}
return flowset, nil
}
func (c *OrientDBStorage) SearchFlows(fsq flow.FlowSearchQuery) (*flow.FlowSet, error) {
interval := fsq.PaginationRange
filter := fsq.Filter
sql := "SELECT FROM Flow"
if conditional := filter.Expression(""); conditional != "" {
sql += " WHERE " + conditional
}
if interval != nil {
sql += fmt.Sprintf(" LIMIT %d, %d", interval.To-interval.From, interval.From)
}
if fsq.Sort {
sql += " ORDER BY Metric.Last"
}
docs, err := c.client.Sql(sql)
if err != nil {
return nil, err
}
flowset := flow.NewFlowSet()
for _, doc := range docs {
flow, err := documentToFlow(doc)
if err != nil {
return nil, err
}
flowset.Flows = append(flowset.Flows, flow)
}
if fsq.Dedup {
if err := flowset.Dedup(fsq.DedupBy); err != nil {
return nil, err
}
}
return flowset, nil
}
func TestFlowQuery(t *testing.T) {
delay := 500 * time.Second
al := flow.NewTableAllocator(delay, delay)
f := func(flows []*flow.Flow) {}
ft1 := al.Alloc(f)
flow.GenerateTestFlows(t, ft1, 1, "probe-tid1")
flows1 := flow.GenerateTestFlows(t, ft1, 2, "probe-tid2")
ft2 := al.Alloc(f)
flows2 := flow.GenerateTestFlows(t, ft2, 3, "probe-tid2")
ft1.Start()
ft2.Start()
time.Sleep(time.Second)
obj, _ := proto.Marshal(&flow.FlowSearchQuery{
Filter: &flow.Filter{
BoolFilter: &flow.BoolFilter{
Op: flow.BoolFilterOp_OR,
Filters: []*flow.Filter{
&flow.Filter{
TermStringFilter: &flow.TermStringFilter{Key: "NodeTID", Value: "probe-tid2"},
},
&flow.Filter{
TermStringFilter: &flow.TermStringFilter{Key: "ANodeTID", Value: "probe-tid2"},
},
&flow.Filter{
TermStringFilter: &flow.TermStringFilter{Key: "BNodeTID", Value: "probe-tid2"},
},
},
},
},
})
query := &flow.TableQuery{
Type: "FlowSearchQuery",
Obj: obj,
}
reply := al.QueryTable(query)
ft1.Stop()
ft2.Stop()
flowset := flow.NewFlowSet()
for _, r := range reply.Obj {
var fsr flow.FlowSearchReply
if err := proto.Unmarshal(r, &fsr); err != nil {
t.Fatal(err.Error())
}
flowset.Merge(fsr.FlowSet, flow.MergeContext{})
}
if len(flowset.Flows) != len(flows1)+len(flows2) {
t.Fatalf("FlowQuery should return at least one flow")
}
for _, flow := range flowset.Flows {
if flow.NodeTID != "probe-tid2" {
t.Fatalf("FlowQuery should only return flows with probe-tid2, got: %s", flow)
}
}
}
func (s *FlowGremlinTraversalStep) Exec(last traversal.GraphTraversalStep) (traversal.GraphTraversalStep, error) {
var graphTraversal *traversal.GraphTraversal
var err error
var paramsFilter *flow.Filter
if len(s.context.Params) > 0 {
if paramsFilter, err = paramsToFilter(s.context.Params...); err != nil {
return nil, err
}
}
var interval *flow.Range
if s.context.StepContext.Range != nil {
interval = &flow.Range{From: 0, To: s.context.StepContext.Range[1]}
}
flowset := flow.NewFlowSet()
switch tv := last.(type) {
case *traversal.GraphTraversal:
graphTraversal = tv
if context := graphTraversal.Graph.GetContext(); context.Time != nil && s.Storage != nil {
var flows []*flow.Flow
if flows, err = storage.LookupFlows(s.Storage, context, paramsFilter, interval); err == nil {
flowset.Flows = append(flowset.Flows, flows...)
}
} else {
flowSearchQuery := &flow.FlowSearchQuery{
Filter: paramsFilter,
Range: interval,
Sort: s.context.StepContext.Sort,
Dedup: s.context.StepContext.Dedup,
}
flowset, err = s.TableClient.LookupFlows(flowSearchQuery)
}
if r := s.context.StepContext.Range; r != nil {
flowset.Slice(int(r[0]), int(r[1]))
}
case *traversal.GraphTraversalV:
graphTraversal = tv.GraphTraversal
hnmap := make(flow.HostNodeIDMap)
graphTraversal.Graph.RLock()
for _, v := range tv.Values() {
node := v.(*graph.Node)
if t, ok := node.Metadata()["Type"]; !ok || !common.IsCaptureAllowed(t.(string)) {
continue
}
hnmap[node.Host()] = append(hnmap[node.Host()], string(node.ID))
}
graphTraversal.Graph.RUnlock()
if context := graphTraversal.Graph.GetContext(); context.Time != nil && s.Storage != nil {
var flows []*flow.Flow
if flows, err = storage.LookupFlowsByNodes(s.Storage, context, hnmap, paramsFilter, interval); err == nil {
flowset.Flows = append(flowset.Flows, flows...)
}
} else {
flowSearchQuery := &flow.FlowSearchQuery{
Filter: paramsFilter,
Range: interval,
Sort: s.context.StepContext.Sort,
Dedup: s.context.StepContext.Dedup,
}
flowset, err = s.TableClient.LookupFlowsByNodes(hnmap, flowSearchQuery)
}
if r := s.context.StepContext.Range; r != nil {
flowset.Slice(int(r[0]), int(r[1]))
}
default:
return nil, traversal.ExecutionError
}
if err != nil {
logging.GetLogger().Errorf("Error while looking for flows: %s", err.Error())
return nil, err
}
return &FlowTraversalStep{GraphTraversal: graphTraversal, flowset: flowset}, nil
}
