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GHO-2783 Make sender node parallelizable (#69)
* GHO-2783 Refactor nodes to use base type * GHO-2783 Make sender node parallelizable * linting * lint
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,99 @@ | ||
| package node | ||
|
|
||
| import ( | ||
| "sync" | ||
| "time" | ||
|
|
||
| "github.com/ghostsecurity/reaper/backend/workflow/transmission" | ||
| "github.com/google/uuid" | ||
| "golang.org/x/net/context" | ||
| ) | ||
|
|
||
| type noInjections struct{} | ||
|
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| func (n noInjections) GetInjections() map[string]transmission.Transmission { | ||
| return nil | ||
| } | ||
|
|
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| type base struct { | ||
| *VarStorage | ||
| id uuid.UUID | ||
| name string | ||
| t Type | ||
| readonly bool | ||
| busy bool | ||
| last time.Time | ||
| busyMu sync.RWMutex | ||
| } | ||
|
|
||
| func newBase(name string, t Type, readonly bool, vars *VarStorage) *base { | ||
| return &base{ | ||
| VarStorage: vars, | ||
| id: uuid.New(), | ||
| name: name, | ||
| t: t, | ||
| readonly: readonly, | ||
| } | ||
| } | ||
|
|
||
| func (b *base) Busy() bool { | ||
| b.busyMu.RLock() | ||
| defer b.busyMu.RUnlock() | ||
| return b.busy | ||
| } | ||
|
|
||
| func (b *base) LastInput() time.Time { | ||
| b.busyMu.RLock() | ||
| defer b.busyMu.RUnlock() | ||
| return b.last | ||
| } | ||
|
|
||
| func (b *base) setBusy(busy bool) { | ||
| b.busyMu.Lock() | ||
| defer b.busyMu.Unlock() | ||
| b.busy = busy | ||
| b.last = time.Now() | ||
| } | ||
|
|
||
| func (b *base) ID() uuid.UUID { | ||
| return b.id | ||
| } | ||
|
|
||
| func (b *base) SetID(id uuid.UUID) { | ||
| b.id = id | ||
| } | ||
|
|
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| func (b *base) Name() string { | ||
| return b.name | ||
| } | ||
|
|
||
| func (b *base) SetName(name string) { | ||
| b.name = name | ||
| } | ||
|
|
||
| func (b *base) Type() Type { | ||
| return b.t | ||
| } | ||
|
|
||
| func (b *base) IsReadOnly() bool { | ||
| return b.readonly | ||
| } | ||
|
|
||
| func (b *base) GetVars() *VarStorage { | ||
| return b.VarStorage | ||
| } | ||
|
|
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| func (b *base) SetVars(vars *VarStorage) { | ||
| b.VarStorage = vars | ||
| } | ||
|
|
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| func (b *base) MergeVars(vars *VarStorage) { | ||
| b.VarStorage.Merge(vars) | ||
| } | ||
|
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| func (b *base) tryOut(ctx context.Context, out chan<- OutputInstance, instance OutputInstance) { | ||
| select { | ||
| case <-ctx.Done(): | ||
| case out <- instance: | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,78 @@ | ||
| package node | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "time" | ||
|
|
||
| "github.com/ghostsecurity/reaper/backend/workflow/transmission" | ||
| "golang.org/x/net/context" | ||
| ) | ||
|
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||
| type DelayNode struct { | ||
| *base | ||
| noInjections | ||
| } | ||
|
|
||
| func NewDelay() *DelayNode { | ||
| return &DelayNode{ | ||
| base: newBase( | ||
| "Delay", | ||
| TypeDelay, | ||
| false, | ||
| NewVarStorage( | ||
| Connectors{ | ||
| NewConnector("input", transmission.TypeAny, true), | ||
| NewConnector("delay", transmission.TypeInt, false, "in milliseconds"), | ||
| }, | ||
| Connectors{ | ||
| NewConnector("output", transmission.TypeAny, true), | ||
| }, | ||
| map[string]transmission.Transmission{ | ||
| "delay": transmission.NewInt(1000), | ||
| }, | ||
| ), | ||
| ), | ||
| } | ||
| } | ||
|
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| func (n *DelayNode) Start(ctx context.Context, in <-chan Input, out chan<- OutputInstance, _ chan<- Output) error { | ||
|
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| delay, err := n.ReadInputInt("delay", nil) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
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| defer n.setBusy(false) | ||
|
|
||
| for { | ||
| select { | ||
| case <-ctx.Done(): | ||
| return ctx.Err() | ||
| case input, ok := <-in: | ||
| if !ok { | ||
| return nil | ||
| } | ||
|
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| n.setBusy(true) | ||
|
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| if input.Data == nil { | ||
| return fmt.Errorf("input is nil") | ||
| } | ||
|
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| raw, err := n.ReadValue("input", input.Data) | ||
| if err != nil { | ||
| return fmt.Errorf("input not found: %v", err) | ||
| } | ||
|
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| time.Sleep(time.Duration(delay) * time.Millisecond) | ||
|
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| n.tryOut(ctx, out, OutputInstance{ | ||
| OutputName: "output", | ||
| Complete: input.Last, | ||
| Data: raw, | ||
| }) | ||
|
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| n.setBusy(false) | ||
| } | ||
| } | ||
| } |
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