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## 📝 Summary Allows sending out collected txs. `--tx-receivers-allowed-sources` is a list of tx sources to resend `--tx-receivers` urls where to send txs (as a octet-stream POST request) ## ⛱ Motivation and Context <!--- Why is this change required? What problem does it solve? --> ## 📚 References <!-- Any interesting external links to documentation, articles, tweets which add value to the PR --> --- ## ✅ I have run these commands * [x] `make lint` * [x] `make test` * [x] `go mod tidy` --------- Co-authored-by: Chris Hager <[email protected]>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,43 @@ | ||
| package collector | ||
|
|
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| import ( | ||
| "bytes" | ||
| "context" | ||
| "io" | ||
| "net/http" | ||
| ) | ||
|
|
||
| type TxReceiver interface { | ||
| SendTx(ctx context.Context, tx *TxIn) error | ||
| } | ||
|
|
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| type HTTPReceiver struct { | ||
| url string | ||
| } | ||
|
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| func NewHTTPReceiver(url string) *HTTPReceiver { | ||
| return &HTTPReceiver{ | ||
| url: url, | ||
| } | ||
| } | ||
|
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| func (r *HTTPReceiver) SendTx(ctx context.Context, tx *TxIn) error { | ||
| rawTx, err := tx.Tx.MarshalBinary() | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
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||
| req, err := http.NewRequestWithContext(ctx, http.MethodPost, r.url, bytes.NewReader(rawTx)) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| req.Header.Set("Content-Type", "application/octet-stream") | ||
|
|
||
| res, err := http.DefaultClient.Do(req) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| defer res.Body.Close() | ||
| _, err = io.Copy(io.Discard, res.Body) | ||
| return err | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,9 +1,57 @@ | ||
| package collector | ||
|
|
||
| import ( | ||
| "context" | ||
| "testing" | ||
| "time" | ||
|
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| "github.com/flashbots/mempool-dumpster/common" | ||
| ) | ||
|
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| // var testLog = common.GetLogger(true, false) | ||
|
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| // func TestBuilderAliases(t *testing.T) { | ||
| // tempDir := t.TempDir() | ||
| // txp := NewTxProcessor(testLog, tempDir, "test1") | ||
| // require.Equal(t, "collector", "collector") | ||
| // } | ||
|
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| type MockTxReceiver struct { | ||
| ReceivedTx *TxIn | ||
| } | ||
|
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| func (r *MockTxReceiver) SendTx(ctx context.Context, tx *TxIn) error { | ||
| r.ReceivedTx = tx | ||
| return nil | ||
| } | ||
|
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| func TestTxProcessor_sendTxToReceivers(t *testing.T) { | ||
| receiver := MockTxReceiver{ReceivedTx: nil} | ||
|
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| processor := NewTxProcessor(TxProcessorOpts{ | ||
| Log: common.GetLogger(true, false), | ||
| OutDir: "", | ||
| UID: "", | ||
| CheckNodeURI: "", | ||
| HTTPReceivers: nil, | ||
| ReceiversAllowedSources: []string{"allowed"}, | ||
| }) | ||
| processor.receivers = append(processor.receivers, &receiver) | ||
|
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| tx := TxIn{ | ||
| T: time.Now(), | ||
| Tx: nil, | ||
| Source: "not-allowed", | ||
| } | ||
| processor.sendTxToReceivers(tx) | ||
|
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| if receiver.ReceivedTx != nil { | ||
| t.Errorf("expected nil, got %v", receiver.ReceivedTx) | ||
| } | ||
|
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| tx.Source = "allowed" | ||
| processor.sendTxToReceivers(tx) | ||
| if receiver.ReceivedTx == nil { | ||
| t.Errorf("expected tx, got nil") | ||
| } | ||
| } |