Merge pull request #140 from lc/lc/fix-providers-stdin

fix(stdin_providers): fix error when passing domains on stdin

cmd/gau/main.go

@@ -2,6 +2,7 @@ package main
 
 import (
 	"bufio"
+	"context"
 	"io"
 	"os"
 	"sync"
@@ -51,9 +52,10 @@ func main() {
 			log.Fatalf("error writing results: %v\n", err)
 		}
 	}(out, config.JSON)
-
+	ctx, cancel := context.WithCancel(context.Background())
+	defer cancel()
 	workChan := make(chan runner.Work)
-	gau.Start(workChan, results)
+	gau.Start(ctx, workChan, results)
 	domains := flags.Args()
 	if len(domains) > 0 {
 		for _, provider := range gau.Providers {
@@ -63,14 +65,15 @@ func main() {
 		}
 	} else {
 		sc := bufio.NewScanner(os.Stdin)
-		for _, provider := range gau.Providers {
-			for sc.Scan() {
-				workChan <- runner.NewWork(sc.Text(), provider)
-			}
-			if err := sc.Err(); err != nil {
-				log.Fatal(err)
+		for sc.Scan() {
+			domain := sc.Text()
+			for _, provider := range gau.Providers {
+				workChan <- runner.NewWork(domain, provider)
 			}
 		}
+		if err := sc.Err(); err != nil {
+			log.Fatal(err)
+		}
 	}
 	close(workChan)
 

pkg/providers/providers.go

@@ -7,7 +7,7 @@ import (
 	"github.com/valyala/fasthttp"
 )
 
-const Version = `2.2.2`
+const Version = `2.2.3`
 
 // Provider is a generic interface for all archive fetchers
 type Provider interface {

runner/runner.go

@@ -16,17 +16,14 @@ import (
 type Runner struct {
 	sync.WaitGroup
 
-	Providers  []providers.Provider
-	threads    uint
-	ctx        context.Context
-	cancelFunc context.CancelFunc
+	Providers []providers.Provider
+	threads   uint
+	ctx       context.Context
 }
 
 // Init initializes the runner
 func (r *Runner) Init(c *providers.Config, providers []string, filters providers.Filters) error {
 	r.threads = c.Threads
-	r.ctx, r.cancelFunc = context.WithCancel(context.Background())
-
 	for _, name := range providers {
 		switch name {
 		case "urlscan":
@@ -48,12 +45,12 @@ func (r *Runner) Init(c *providers.Config, providers []string, filters providers
 }
 
 // Starts starts the worker
-func (r *Runner) Start(workChan chan Work, results chan string) {
+func (r *Runner) Start(ctx context.Context, workChan chan Work, results chan string) {
 	for i := uint(0); i < r.threads; i++ {
 		r.Add(1)
 		go func() {
 			defer r.Done()
-			r.worker(r.ctx, workChan, results)
+			r.worker(ctx, workChan, results)
 		}()
 	}
 }