83 lines
2.1 KiB
Go
83 lines
2.1 KiB
Go
package main
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import (
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"flag"
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"fmt"
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vegeta "github.com/tsenart/vegeta/lib"
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"io"
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"log"
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"os"
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"time"
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)
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func attackCmd(args []string) command {
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fs := flag.NewFlagSet("attack", flag.ExitOnError)
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rate := fs.Uint64("rate", 50, "Requests per second")
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targetsf := fs.String("targets", "targets.txt", "Targets file")
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ordering := fs.String("ordering", "random", "Attack ordering [sequential, random]")
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duration := fs.Duration("duration", 10*time.Second, "Duration of the test")
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output := fs.String("output", "stdout", "Vegeta Results file")
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fs.Parse(args)
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return func() error {
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return attack(*rate, *duration, *targetsf, *ordering, *output)
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}
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}
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// attack validates the attack arguments, sets up the
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// required resources, launches the attack and writes the results
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func attack(rate uint64, duration time.Duration, targetsf, ordering, output string) error {
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if rate == 0 {
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return fmt.Errorf(errRatePrefix + "can't be zero")
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}
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if duration == 0 {
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return fmt.Errorf(errDurationPrefix + "can't be zero")
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}
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targets, err := vegeta.NewTargetsFromFile(targetsf)
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if err != nil {
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return fmt.Errorf(errTargetsFilePrefix+"(%s): %s", targetsf, err)
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}
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switch ordering {
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case "random":
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targets.Shuffle(time.Now().UnixNano())
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case "sequential":
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break
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default:
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return fmt.Errorf(errOrderingPrefix+"`%s` is invalid", ordering)
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}
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var out io.Writer
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switch output {
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case "stdout":
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out = os.Stdout
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default:
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file, err := os.Create(output)
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if err != nil {
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return fmt.Errorf(errOutputFilePrefix+"(%s): %s", output, err)
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}
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defer file.Close()
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out = file
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}
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log.Printf("Vegeta is attacking %d targets in %s order for %s...\n", len(targets), ordering, duration)
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results := vegeta.Attack(targets, rate, duration)
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log.Println("Done!")
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log.Printf("Writing results to '%s'...", output)
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if err := results.WriteTo(out); err != nil {
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return err
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}
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return nil
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}
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const (
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errRatePrefix = "Rate: "
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errDurationPrefix = "Duration: "
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errOutputFilePrefix = "Output file: "
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errTargetsFilePrefix = "Targets file: "
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errOrderingPrefix = "Ordering: "
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errReportingPrefix = "Reporting: "
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)
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