cookie jar go

broker/broker.go

@@ -2,9 +2,15 @@ package broker
 
 import (
 	"context"
+	"encoding/json"
+	"errors"
+	"local/storage"
 	"local/truckstop/config"
+	"local/truckstop/logtr"
 	"net/http"
+	"net/http/cookiejar"
 	"strings"
+	"time"
 
 	"golang.org/x/time/rate"
 )
@@ -20,9 +26,54 @@ type Broker interface {
 }
 
 func do(r *http.Request) (*http.Response, error) {
+	return _do(config.Get().DB(), r)
+}
+
+func _do(db storage.DB, r *http.Request) (*http.Response, error) {
 	limiter.Wait(context.Background())
 	if strings.Contains(strings.ToLower(r.URL.Path), "login") {
 		authlimiter.Wait(context.Background())
 	}
-	return http.DefaultClient.Do(r)
+	client := &http.Client{
+		Timeout: time.Hour,
+	}
+	newjar, err := cookiejar.New(&cookiejar.Options{})
+	if err != nil {
+		return nil, errors.New("failed to make a cookie jar: " + err.Error())
+	}
+	client.Jar = newjar
+
+	cookieJarKey := "cookies_" + r.URL.Host
+	cookies, err := getCookies(db, cookieJarKey)
+	if err != nil {
+		logtr.Errorf("failed to load cookies: %v", err)
+	} else {
+		client.Jar.SetCookies(r.URL, cookies)
+	}
+	resp, err := client.Do(r)
+	if err != nil {
+		return nil, err
+	}
+	if err := setCookies(db, cookieJarKey, client.Jar.Cookies(r.URL)); err != nil {
+		logtr.Errorf("failed to set cookies: %v", err)
+	}
+	return resp, err
+}
+
+func getCookies(db storage.DB, host string) ([]*http.Cookie, error) {
+	b, err := db.Get(host)
+	if err != nil {
+		return nil, err
+	}
+	var result []*http.Cookie
+	err = json.Unmarshal(b, &result)
+	return result, err
+}
+
+func setCookies(db storage.DB, host string, cookies []*http.Cookie) error {
+	b, err := json.Marshal(cookies)
+	if err != nil {
+		return err
+	}
+	return db.Set(host, b)
 }

broker/broker_test.go

@@ -0,0 +1,59 @@
+package broker
+
+import (
+	"fmt"
+	"local/storage"
+	"net/http"
+	"net/http/httptest"
+	"strings"
+	"testing"
+	"time"
+
+	"golang.org/x/time/rate"
+)
+
+func TestDoCookies(t *testing.T) {
+	limiter = rate.NewLimiter(rate.Limit(20.0), 1)
+	calls := 0
+	db := storage.NewMap()
+	s := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		calls += 1
+		if calls == 1 {
+			http.SetCookie(w, &http.Cookie{
+				Name:    "name",
+				Value:   "value",
+				Expires: time.Now().Add(time.Hour),
+			})
+		} else {
+			if !strings.Contains(fmt.Sprint(r.Header["Cookie"]), "name=value") {
+				w.WriteHeader(http.StatusBadRequest)
+				t.Error("cookie not set on calls after first")
+			}
+		}
+	}))
+	defer s.Close()
+	req, _ := http.NewRequest(http.MethodGet, s.URL, nil)
+
+	if cookies, err := getCookies(db, "cookies_"+req.URL.Host); err == nil {
+		t.Fatal(err)
+	} else if len(cookies) != 0 {
+		t.Fatal(cookies)
+	}
+
+	for i := 0; i < 3; i++ {
+		resp, err := _do(db, req)
+		if err != nil {
+			t.Fatal(err)
+		}
+		if resp.StatusCode != http.StatusOK {
+			t.Fatal(resp.StatusCode)
+		}
+		resp.Body.Close()
+
+		if cookies, err := getCookies(db, "cookies_"+req.URL.Host); err != nil {
+			t.Fatal(err)
+		} else if len(cookies) == 0 {
+			t.Fatal(cookies)
+		}
+	}
+}