mirror of
https://github.com/Luzifer/go-dhparam.git
synced 2024-11-08 15:20:03 +00:00
110 lines
2.5 KiB
Go
110 lines
2.5 KiB
Go
package dhparam
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import (
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"bytes"
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"context"
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"fmt"
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"io/ioutil"
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"os"
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"os/exec"
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"strings"
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"testing"
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"time"
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)
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func opensslOutput(r GeneratorResult) {
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switch r {
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case GeneratorFoundPossiblePrime:
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os.Stderr.WriteString(".")
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case GeneratorFirstConfirmation:
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os.Stderr.WriteString("+")
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case GeneratorSafePrimeFound:
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os.Stderr.WriteString("*\n")
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}
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}
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func execGeneratorIntegration(t *testing.T, bitsize int, generator Generator) {
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dh, err := Generate(bitsize, generator, opensslOutput)
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if err != nil {
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t.Fatalf("Unable to generate DH params: %s", err)
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}
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pem, err := dh.ToPEM()
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if err != nil {
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t.Fatalf("Unable to generate PEM encoded version: %s", err)
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}
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buf := new(bytes.Buffer)
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f, err := ioutil.TempFile("", "dhparam.*")
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if err != nil {
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t.Fatalf("Unable to create tempfile: %s", err)
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}
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defer os.Remove(f.Name())
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if _, err = f.Write(pem); err != nil {
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t.Fatalf("Unable to write tempfile: %s", err)
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}
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f.Close()
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cmd := exec.Command("openssl", "dhparam", "-inform", "PEM", "-in", f.Name(), "-check", "-noout", "-text")
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cmd.Stdin = bytes.NewReader(pem)
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cmd.Stdout = buf
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cmd.Stderr = buf
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if err := cmd.Run(); err != nil {
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t.Errorf("Validation command was not successful: %s", err)
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}
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result := buf.String()
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fullOutput := false
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for _, expect := range []string{
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fmt.Sprintf("DH Parameters: (%d bit)", bitsize),
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"DH parameters appear to be ok.",
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fmt.Sprintf("generator: %d (0x%x)", generator, generator),
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} {
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if !strings.Contains(result, expect) {
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t.Errorf("Did not find expected OpenSSL output: %q", expect)
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fullOutput = true
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}
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}
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if fullOutput {
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t.Logf("Received OpenSSL output:\n%s", result)
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}
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}
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func TestGenerator512bit(t *testing.T) {
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execGeneratorIntegration(t, 512, GeneratorTwo)
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}
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func TestGenerator1024bit(t *testing.T) {
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execGeneratorIntegration(t, 1024, GeneratorTwo)
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}
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func TestGenerator2048bit(t *testing.T) {
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execGeneratorIntegration(t, 2048, GeneratorTwo)
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}
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func TestGeneratorInterrupt(t *testing.T) {
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start := time.Now()
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ctx, cancel := context.WithTimeout(context.TODO(), 100*time.Millisecond)
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dh, err := GenerateWithContext(ctx, 4096, GeneratorTwo, nil)
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cancel()
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duration := time.Since(start)
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if duration > 1*time.Second {
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t.Fatal("Function was not canceled early")
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}
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if err != context.DeadlineExceeded {
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t.Fatal("Expected error to be context.DeadlineExceeded")
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}
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if dh != nil {
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t.Fatal("Expected result to be nil")
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}
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}
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func TestGenerator5(t *testing.T) {
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execGeneratorIntegration(t, 512, GeneratorFive)
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}
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