Do not treat server errors as API originated errors

Author: anbsky

extras/lbryinc/client.go

@@ -119,6 +119,9 @@ func (c Client) doCall(url string, payload string) ([]byte, error) {
 	if err != nil {
 		return body, err
 	}
+	if r.StatusCode >= 500 {
+		return body, fmt.Errorf("server returned non-OK status: %v", r.StatusCode)
+	}
 	defer r.Body.Close()
 	return ioutil.ReadAll(r.Body)
 }

extras/lbryinc/client_test.go

@@ -9,23 +9,24 @@ import (
 	"github.com/stretchr/testify/assert"
 )
 
-func launchDummyServer(lastReq **http.Request, path, response string) *httptest.Server {
+func launchDummyServer(lastReq **http.Request, path, response string, status int) *httptest.Server {
 	return httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		*lastReq = &*r
+		if lastReq != nil {
+			*lastReq = &*r
+		}
 		if r.URL.Path != path {
 			fmt.Printf("path doesn't match: %v != %v", r.URL.Path, path)
 			w.WriteHeader(http.StatusNotFound)
 		} else {
 			w.Header().Set("Content-Type", "application/json; charset=utf-8")
-			w.WriteHeader(http.StatusOK)
+			w.WriteHeader(status)
 			w.Write([]byte(response))
 		}
 	}))
 }
 
 func TestUserMe(t *testing.T) {
-	var req *http.Request
-	ts := launchDummyServer(&req, makeMethodPath(userObjectPath, userMeMethod), userMeResponse)
+	ts := launchDummyServer(nil, makeMethodPath(userObjectPath, userMeMethod), userMeResponse, http.StatusOK)
 	defer ts.Close()
 
 	c := NewClient("realToken", &ClientOpts{ServerAddress: ts.URL})
@@ -35,8 +36,7 @@ func TestUserMe(t *testing.T) {
 }
 
 func TestUserHasVerifiedEmail(t *testing.T) {
-	var req *http.Request
-	ts := launchDummyServer(&req, makeMethodPath(userObjectPath, userHasVerifiedEmailMethod), userHasVerifiedEmailResponse)
+	ts := launchDummyServer(nil, makeMethodPath(userObjectPath, userHasVerifiedEmailMethod), userHasVerifiedEmailResponse, http.StatusOK)
 	defer ts.Close()
 
 	c := NewClient("realToken", &ClientOpts{ServerAddress: ts.URL})
@@ -48,7 +48,7 @@ func TestUserHasVerifiedEmail(t *testing.T) {
 
 func TestRemoteIP(t *testing.T) {
 	var req *http.Request
-	ts := launchDummyServer(&req, makeMethodPath(userObjectPath, userMeMethod), userMeResponse)
+	ts := launchDummyServer(&req, makeMethodPath(userObjectPath, userMeMethod), userMeResponse, http.StatusOK)
 	defer ts.Close()
 
 	c := NewClient("realToken", &ClientOpts{ServerAddress: ts.URL, RemoteIP: "8.8.8.8"})
@@ -74,6 +74,17 @@ func TestHTTPError(t *testing.T) {
 	assert.EqualError(t, err, `Post "http://lolcathost/user/has_verified_email": dial tcp: lookup lolcathost: no such host`)
 }
 
+func TestGatewayError(t *testing.T) {
+	var req *http.Request
+	ts := launchDummyServer(&req, makeMethodPath(userObjectPath, userHasVerifiedEmailMethod), "", http.StatusBadGateway)
+	defer ts.Close()
+	c := NewClient("zcasdasc", &ClientOpts{ServerAddress: ts.URL})
+
+	r, err := c.UserHasVerifiedEmail()
+	assert.Nil(t, r)
+	assert.EqualError(t, err, `server returned non-OK status: 502`)
+}
+
 const userMeResponse = `{
 	"success": true,
 	"error": null,