Problem: templateFile is unused

Solution: remove templateFile

cmd/eksterd/http.go

@@ -106,10 +106,6 @@ func newMainHandler(backend *memoryBackend, baseURL, templateDir string, pool *r
 	return h, nil
 }
 
-func (h *mainHandler) templateFile(filename string) string {
-	return fmt.Sprintf("%s/%s", h.TemplateDir, filename)
-}
-
 func (h *mainHandler) renderTemplate(w io.Writer, filename string, data interface{}) error {
 	fsys, err := fs.Sub(templates, "templates")
 	if err != nil {
@@ -292,7 +288,7 @@ func (h *mainHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 	err := r.ParseForm()
 	if err != nil {
 		log.Println(err)
-		http.Error(w, fmt.Sprintf("Bad Request: %s", err.Error()), 400)
+		http.Error(w, fmt.Sprintf("Bad Request: %s", err.Error()), http.StatusBadRequest)
 		return
 	}
 
@@ -317,15 +313,19 @@ func (h *mainHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 		} else if r.URL.Path == "/session/callback" {
 			c, err := r.Cookie("session")
 			if err == http.ErrNoCookie {
-				http.Redirect(w, r, "/", 302)
+				http.Redirect(w, r, "/", http.StatusFound)
 				return
 			} else if err != nil {
-				http.Error(w, "could not read cookie", 500)
+				http.Error(w, "could not read cookie", http.StatusInternalServerError)
 				return
 			}
 
 			sessionVar := c.Value
 			sess, err := loadSession(sessionVar, conn)
+			if err != nil {
+				fmt.Fprintf(w, "ERROR: %q\n", err)
+				return
+			}
 
 			verified, authResponse, err := performIndieauthCallback(h.BaseURL, r, &sess)
 			if err != nil {
@@ -338,9 +338,9 @@ func (h *mainHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 				saveSession(sessionVar, &sess, conn)
 				log.Printf("SESSION: %#v\n", sess)
 				if sess.NextURI != "" {
-					http.Redirect(w, r, sess.NextURI, 302)
+					http.Redirect(w, r, sess.NextURI, http.StatusFound)
 				} else {
-					http.Redirect(w, r, "/", 302)
+					http.Redirect(w, r, "/", http.StatusFound)
 				}
 				return
 			}
@@ -348,11 +348,16 @@ func (h *mainHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 		} else if r.URL.Path == "/settings/channel" {
 			c, err := r.Cookie("session")
 			if err == http.ErrNoCookie {
-				http.Redirect(w, r, "/", 302)
+				http.Redirect(w, r, "/", http.StatusFound)
 				return
 			}
 			sessionVar := c.Value
 			sess, err := loadSession(sessionVar, conn)
+			if err != nil {
+				log.Printf("ERROR: %s\n", err)
+				http.Error(w, "Internal Server Error", http.StatusInternalServerError)
+				return
+			}
 
 			if !isLoggedIn(h.Backend, &sess) {
 				w.WriteHeader(401)
@@ -364,7 +369,17 @@ func (h *mainHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 			page.Session = sess
 			currentChannel := r.URL.Query().Get("uid")
 			page.Channels, err = h.Backend.ChannelsGetList()
+			if err != nil {
+				log.Printf("ERROR: %s\n", err)
+				http.Error(w, "Internal Server Error", http.StatusInternalServerError)
+				return
+			}
 			page.Feeds, err = h.Backend.FollowGetList(currentChannel)
+			if err != nil {
+				log.Printf("ERROR: %s\n", err)
+				http.Error(w, "Internal Server Error", http.StatusInternalServerError)
+				return
+			}
 
 			for _, v := range page.Channels {
 				if v.UID == currentChannel {
@@ -404,11 +419,16 @@ func (h *mainHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 		} else if r.URL.Path == "/logs" {
 			c, err := r.Cookie("session")
 			if err == http.ErrNoCookie {
-				http.Redirect(w, r, "/", 302)
+				http.Redirect(w, r, "/", http.StatusFound)
 				return
 			}
 			sessionVar := c.Value
 			sess, err := loadSession(sessionVar, conn)
+			if err != nil {
+				log.Printf("ERROR: %s\n", err)
+				http.Error(w, "Internal Server Error", http.StatusInternalServerError)
+				return
+			}
 
 			if !isLoggedIn(h.Backend, &sess) {
 				w.WriteHeader(401)
@@ -427,11 +447,16 @@ func (h *mainHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 		} else if r.URL.Path == "/settings" {
 			c, err := r.Cookie("session")
 			if err == http.ErrNoCookie {
-				http.Redirect(w, r, "/", 302)
+				http.Redirect(w, r, "/", http.StatusFound)
 				return
 			}
 			sessionVar := c.Value
 			sess, err := loadSession(sessionVar, conn)
+			if err != nil {
+				log.Printf("ERROR: %s\n", err)
+				http.Error(w, "Internal Server Error", http.StatusInternalServerError)
+				return
+			}
 
 			if !isLoggedIn(h.Backend, &sess) {
 				w.WriteHeader(401)
@@ -442,6 +467,11 @@ func (h *mainHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 			var page settingsPage
 			page.Session = sess
 			page.Channels, err = h.Backend.ChannelsGetList()
+			if err != nil {
+				log.Printf("ERROR: %s\n", err)
+				http.Error(w, "Internal Server Error", http.StatusInternalServerError)
+				return
+			}
 			// page.Feeds = h.Backend.Feeds
 
 			err = h.renderTemplate(w, "settings.html", page)
@@ -456,11 +486,16 @@ func (h *mainHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 			sessionVar := getSessionCookie(w, r)
 
 			sess, err := loadSession(sessionVar, conn)
+			if err != nil {
+				log.Printf("ERROR: %s\n", err)
+				http.Error(w, "Internal Server Error", http.StatusInternalServerError)
+				return
+			}
 
 			if !isLoggedIn(h.Backend, &sess) {
 				sess.NextURI = r.URL.String()
 				saveSession(sessionVar, &sess, conn)
-				http.Redirect(w, r, "/", 302)
+				http.Redirect(w, r, "/", http.StatusFound)
 				return
 			}
 
@@ -502,6 +537,11 @@ func (h *mainHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 			page.Scope = scope
 			page.State = state
 			page.Channels, err = h.Backend.ChannelsGetList()
+			if err != nil {
+				log.Printf("ERROR: %s\n", err)
+				http.Error(w, "Internal Server Error", http.StatusInternalServerError)
+				return
+			}
 
 			app, err := getAppInfo(clientID)
 			if err != nil {
@@ -519,7 +559,7 @@ func (h *mainHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 		if r.URL.Path == "/session" {
 			c, err := r.Cookie("session")
 			if err == http.ErrNoCookie {
-				http.Redirect(w, r, "/", 302)
+				http.Redirect(w, r, "/", http.StatusFound)
 				return
 			}
 
@@ -530,7 +570,7 @@ func (h *mainHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 
 			endpoints, err := getEndpoints(me)
 			if err != nil {
-				http.Error(w, fmt.Sprintf("Bad Request: %s, %s", err.Error(), me), 400)
+				http.Error(w, fmt.Sprintf("Bad Request: %s, %s", err.Error(), me), http.StatusBadRequest)
 				return
 			}
 
@@ -540,7 +580,7 @@ func (h *mainHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 			sess, err := loadSession(sessionVar, conn)
 
 			if err != nil {
-				http.Redirect(w, r, "/", 302)
+				http.Redirect(w, r, "/", http.StatusFound)
 				return
 			}
 
@@ -552,12 +592,12 @@ func (h *mainHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 
 			err = saveSession(sessionVar, &sess, conn)
 			if err != nil {
-				http.Redirect(w, r, "/", 302)
+				http.Redirect(w, r, "/", http.StatusFound)
 				return
 			}
 
 			authenticationURL := indieauth.CreateAuthenticationURL(*endpoints.AuthorizationEndpoint, endpoints.Me.String(), h.BaseURL, redirectURI, state)
-			http.Redirect(w, r, authenticationURL, 302)
+			http.Redirect(w, r, authenticationURL, http.StatusFound)
 
 			return
 		} else if r.URL.Path == "/session/logout" {
@@ -610,7 +650,7 @@ func (h *mainHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 			redirectURI.RawQuery = q.Encode()
 
 			log.Println(redirectURI)
-			http.Redirect(w, r, redirectURI.String(), 302)
+			http.Redirect(w, r, redirectURI.String(), http.StatusFound)
 			return
 		} else if r.URL.Path == "/auth/token" {
 			grantType := r.FormValue("grant_type")
@@ -682,11 +722,11 @@ func (h *mainHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 			// }
 			// h.Backend.Settings[uid] = setting
 
-			http.Redirect(w, r, "/settings", 302)
+			http.Redirect(w, r, "/settings", http.StatusFound)
 			return
 		} else if r.URL.Path == "/refresh" {
 			h.Backend.RefreshFeeds()
-			http.Redirect(w, r, "/", 302)
+			http.Redirect(w, r, "/", http.StatusFound)
 			return
 		}
 	}
@@ -697,14 +737,14 @@ func (h *mainHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 func httpSessionLogout(r *http.Request, w http.ResponseWriter, conn redis.Conn) {
 	c, err := r.Cookie("session")
 	if err == http.ErrNoCookie {
-		http.Redirect(w, r, "/", 302)
+		http.Redirect(w, r, "/", http.StatusFound)
 		return
 	}
 	if err == nil {
 		sessionVar := c.Value
 		_, _ = conn.Do("DEL", "session:"+sessionVar)
 	}
-	http.Redirect(w, r, "/", 302)
+	http.Redirect(w, r, "/", http.StatusFound)
 }
 
 type parsedEndpoints struct {

cmd/eksterd/hubbackend.go

@@ -172,6 +172,9 @@ func (h *hubIncomingBackend) Feeds() ([]Feed, error) {
 		inner join channels c on c.id = f.channel_id
 		where hub is not null
 	`)
+	if err != nil {
+		return nil, err
+	}
 
 	for rows.Next() {
 		var feed Feed

cmd/eksterd/incoming.go

@@ -51,13 +51,13 @@ func (h *incomingHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 			leaseSeconds, err := strconv.ParseInt(leaseStr, 10, 64)
 			if err != nil {
 				log.Printf("error in hub.lease_seconds format %q: %s", leaseSeconds, err)
-				http.Error(w, fmt.Sprintf("error in hub.lease_seconds format %q: %s", leaseSeconds, err), 400)
+				http.Error(w, fmt.Sprintf("error in hub.lease_seconds format %q: %s", leaseSeconds, err), http.StatusBadRequest)
 				return
 			}
 			err = h.Backend.FeedSetLeaseSeconds(feed, leaseSeconds)
 			if err != nil {
 				log.Printf("error in while setting hub.lease_seconds: %s", err)
-				http.Error(w, fmt.Sprintf("error in while setting hub.lease_seconds: %s", err), 400)
+				http.Error(w, fmt.Sprintf("error in while setting hub.lease_seconds: %s", err), http.StatusBadRequest)
 				return
 			}
 		}
@@ -70,7 +70,7 @@ func (h *incomingHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 	}
 
 	if r.Method != http.MethodPost {
-		http.Error(w, "Method not allowed", 405)
+		http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
 		return
 	}
 
@@ -78,18 +78,23 @@ func (h *incomingHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 	secret := h.Backend.GetSecret(feed)
 	if secret == "" {
 		log.Printf("missing secret for feed %d\n", feed)
-		http.Error(w, "Unknown", 400)
+		http.Error(w, "Unknown", http.StatusBadRequest)
 		return
 	}
 
 	feedContent, err := ioutil.ReadAll(r.Body)
+	if err != nil {
+		log.Printf("ERROR: %s\n", err)
+		http.Error(w, "Internal Server Error", http.StatusInternalServerError)
+		return
+	}
 
 	// match signature
 	sig := r.Header.Get("X-Hub-Signature")
 	if sig != "" {
 		if err := websub.ValidateHubSignature(sig, feedContent, []byte(secret)); err != nil {
 			log.Printf("could not validate signature: %+v", err)
-			http.Error(w, fmt.Sprintf("could not validate signature: %s", err), 400)
+			http.Error(w, fmt.Sprintf("could not validate signature: %s", err), http.StatusBadRequest)
 			return
 		}
 	}
@@ -97,9 +102,7 @@ func (h *incomingHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 	ct := r.Header.Get("Content-Type")
 	err = h.Backend.UpdateFeed(h.Processor, feed, ct, bytes.NewBuffer(feedContent))
 	if err != nil {
-		http.Error(w, fmt.Sprintf("could not update feed: %s (%s)", ct, err), 400)
+		http.Error(w, fmt.Sprintf("could not update feed: %s (%s)", ct, err), http.StatusBadRequest)
 		return
 	}
-
-	return
 }

cmd/eksterd/main.go

@@ -86,13 +86,13 @@ func WithAuth(handler http.Handler, b *memoryBackend) http.Handler {
 		}
 		if !authorized {
 			log.Printf("Token could not be validated")
-			http.Error(w, "Can't validate token", 403)
+			http.Error(w, "Can't validate token", http.StatusForbidden)
 			return
 		}
 
 		if token.Me != b.Me { // FIXME: Me should be part of the request
 			log.Printf("Missing \"me\" in token response: %#v\n", token)
-			http.Error(w, "Wrong me", 403)
+			http.Error(w, "Wrong me", http.StatusForbidden)
 			return
 		}
 

cmd/eksterd/memory.go

@@ -84,12 +84,6 @@ type newItemMessage struct {
 	Channel string        `json:"channel"`
 }
 
-type fetch2 struct{}
-
-func (f *fetch2) Fetch(url string) (*http.Response, error) {
-	return Fetch2(url)
-}
-
 func (b *memoryBackend) AuthTokenAccepted(header string, r *auth.TokenResponse) (bool, error) {
 	conn := b.pool.Get()
 	defer func() {
@@ -142,10 +136,7 @@ func shouldRetryWithNewUID(err error, try int) bool {
 
 	if e, ok := err.(*pq.Error); ok {
 		if e.Code == "23505" && e.Constraint == "channels_uid_key" {
-			if try > 5 {
-				return false
-			}
-			return true
+			return try <= 5
 		}
 	}
 	return false
@@ -633,27 +624,22 @@ func (b *memoryBackend) channelAddItemWithMatcher(channel string, item microsub.
 					if len(item.RepostOf) > 0 {
 						return nil
 					}
-					break
 				case "like":
 					if len(item.LikeOf) > 0 {
 						return nil
 					}
-					break
 				case "bookmark":
 					if len(item.BookmarkOf) > 0 {
 						return nil
 					}
-					break
 				case "reply":
 					if len(item.InReplyTo) > 0 {
 						return nil
 					}
-					break
 				case "checkin":
 					if item.Checkin != nil {
 						return nil
 					}
-					break
 				}
 			}
 		}
@@ -775,7 +761,10 @@ func WithCaching(pool *redis.Pool, ff fetch.Fetcher) fetch.Fetcher {
 			return nil, fmt.Errorf("error parsing %s as url: %s", fetchURL, err)
 		}
 
-		req, err := http.NewRequest("GET", u.String(), nil)
+		req, err := http.NewRequest(http.MethodGet, u.String(), nil)
+		if err != nil {
+			return nil, err
+		}
 
 		data, err := redis.Bytes(conn.Do("GET", cacheKey))
 		if err == nil {
@@ -821,7 +810,10 @@ func Fetch2(fetchURL string) (*http.Response, error) {
 		return nil, fmt.Errorf("error parsing %s as url: %s", fetchURL, err)
 	}
 
-	req, err := http.NewRequest("GET", u.String(), nil)
+	req, err := http.NewRequest(http.MethodGet, u.String(), nil)
+	if err != nil {
+		return nil, err
+	}
 
 	client := http.Client{}
 	resp, err := client.Do(req)

cmd/eksterd/micropub.go

@@ -40,7 +40,7 @@ func (h *micropubHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 
 	err := r.ParseForm()
 	if err != nil {
-		http.Error(w, "bad request", 400)
+		http.Error(w, "bad request", http.StatusBadRequest)
 		return
 	}
 
@@ -50,13 +50,13 @@ func (h *micropubHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 		channel, err = getChannelFromAuthorization(r, conn)
 		if err != nil {
 			log.Println(err)
-			http.Error(w, "unauthorized", 401)
+			http.Error(w, "unauthorized", http.StatusUnauthorized)
 			return
 		}
 
 		// no channel is found
 		if channel == "" {
-			http.Error(w, "bad request, unknown channel", 400)
+			http.Error(w, "bad request, unknown channel", http.StatusBadRequest)
 			return
 		}
 
@@ -64,7 +64,7 @@ func (h *micropubHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 		item, err := parseIncomingItem(r)
 		if err != nil {
 			log.Println(err)
-			http.Error(w, err.Error(), 400)
+			http.Error(w, err.Error(), http.StatusBadRequest)
 			return
 		}
 		log.Printf("Item published: %s", item.Published)
@@ -76,7 +76,7 @@ func (h *micropubHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 		newID, err := generateItemID(conn, channel)
 		if err != nil {
 			log.Println(err)
-			http.Error(w, err.Error(), 500)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
 			return
 		}
 		item.ID = newID
@@ -95,13 +95,13 @@ func (h *micropubHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 
 		if err = json.NewEncoder(w).Encode(map[string]string{"ok": "1"}); err != nil {
 			log.Println(err)
-			http.Error(w, "internal server error", 500)
+			http.Error(w, "internal server error", http.StatusInternalServerError)
 		}
 
 		return
 	}
 
-	http.Error(w, "Method not allowed", 405)
+	http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
 }
 
 func generateItemID(conn redis.Conn, channel string) (string, error) {

pkg/fetch/fetch.go

@@ -48,6 +48,9 @@ func FeedHeader(fetcher Fetcher, fetchURL, contentType string, body io.Reader) (
 				md := microformats.Parse(resp.Body, u)
 
 				author, ok = jf2.SimplifyMicroformatDataAuthor(md)
+				if !ok {
+					log.Println("Could not simplify the author")
+				}
 			}
 		}
 

pkg/jf2/simplify.go

@@ -88,6 +88,14 @@ func simplifyContent(k string, v []interface{}) *microsub.Content {
 // CleanHTML removes white-space:pre from html
 func CleanHTML(s string) (string, error) {
 	doc, err := html.Parse(strings.NewReader(s))
+	if err != nil {
+		return "", err
+	}
+
+	whitespaceRegex, err := regexp.Compile(`white-space:\s*pre`)
+	if err != nil {
+		return "", err
+	}
 
 	if err != nil {
 		return "", err
@@ -101,7 +109,7 @@ func CleanHTML(s string) (string, error) {
 				if a.Key != "style" {
 					continue
 				}
-				if m, err := regexp.MatchString("white-space:\\s*pre", a.Val); err == nil && m {
+				if whitespaceRegex.MatchString(a.Val) {
 					removeIndex = i
 					break
 				}

pkg/rss/ISO-8859-1.go

@@ -37,7 +37,7 @@ func (cs *charsetISO88591er) ReadByte() (b byte, err error) {
 
 func (cs *charsetISO88591er) Read(p []byte) (int, error) {
 	// Use ReadByte method.
-	return 0, errors.New("Use ReadByte()")
+	return 0, errors.New("use ReadByte()")
 }
 
 func isCharsetISO88591(charset string) bool {

pkg/rss/rss.go

@@ -303,7 +303,7 @@ type Enclosure struct {
 // Get uses http.Get to fetch an enclosure.
 func (e *Enclosure) Get() (io.ReadCloser, error) {
 	if e == nil || e.URL == "" {
-		return nil, errors.New("No enclosure")
+		return nil, errors.New("no enclosure")
 	}
 
 	res, err := http.Get(e.URL)
@@ -325,7 +325,7 @@ type Image struct {
 // Get uses http.Get to fetch an image.
 func (i *Image) Get() (io.ReadCloser, error) {
 	if i == nil || i.URL == "" {
-		return nil, errors.New("No image")
+		return nil, errors.New("no image")
 	}
 
 	res, err := http.Get(i.URL)

pkg/rss/rss_2.0_test.go

@@ -1,7 +1,6 @@
 package rss
 
 import (
-	"fmt"
 	"io/ioutil"
 	"path/filepath"
 	"testing"
@@ -77,7 +76,7 @@ func TestParseItemDateOK(t *testing.T) {
 			t.Fatalf("Parsing %s: %v", name, err)
 		}
 
-		if fmt.Sprintf("%s", feed.Items[0].Date) != want {
+		if feed.Items[0].Date.String() != want {
 			t.Errorf("%s: got %q, want %q", name, feed.Items[0].Date, want)
 		}
 	}
@@ -100,7 +99,7 @@ func TestParseItemDateFailure(t *testing.T) {
 			t.Fatalf("Parsing %s: %v", name, err)
 		}
 
-		if fmt.Sprintf("%s", feed.Items[1].Date) != want {
+		if feed.Items[1].Date.String() != want {
 			t.Errorf("%s: got %q, want %q", name, feed.Items[1].Date, want)
 		}
 

pkg/server/microsub.go

@@ -16,7 +16,7 @@ import (
 )
 
 var (
-	entryRegex = regexp.MustCompile("^entry\\[\\d+\\]$")
+	entryRegex = regexp.MustCompile(`^entry\[\d+\]$`)
 )
 
 // Constants used for the responses
@@ -36,7 +36,7 @@ func respondJSON(w http.ResponseWriter, value interface{}) {
 	w.Header().Add("Content-Type", OutputContentType)
 	err := jw.Encode(value)
 	if err != nil {
-		http.Error(w, err.Error(), 500)
+		http.Error(w, err.Error(), http.StatusInternalServerError)
 	}
 }
 
@@ -70,7 +70,7 @@ func (h *microsubHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 			channels, err := h.backend.ChannelsGetList()
 			if err != nil {
 				log.Println(err)
-				http.Error(w, err.Error(), 500)
+				http.Error(w, err.Error(), http.StatusInternalServerError)
 				return
 			}
 			respondJSON(w, map[string][]microsub.Channel{
@@ -80,7 +80,7 @@ func (h *microsubHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 			timeline, err := h.backend.TimelineGet(values.Get("before"), values.Get("after"), values.Get("channel"))
 			if err != nil {
 				log.Println(err)
-				http.Error(w, err.Error(), 500)
+				http.Error(w, err.Error(), http.StatusInternalServerError)
 				return
 			}
 			respondJSON(w, timeline)
@@ -88,7 +88,7 @@ func (h *microsubHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 			timeline, err := h.backend.PreviewURL(values.Get("url"))
 			if err != nil {
 				log.Println(err)
-				http.Error(w, err.Error(), 500)
+				http.Error(w, err.Error(), http.StatusInternalServerError)
 				return
 			}
 			respondJSON(w, timeline)
@@ -97,7 +97,7 @@ func (h *microsubHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 			following, err := h.backend.FollowGetList(channel)
 			if err != nil {
 				log.Println(err)
-				http.Error(w, err.Error(), 500)
+				http.Error(w, err.Error(), http.StatusInternalServerError)
 				return
 			}
 			respondJSON(w, map[string][]microsub.Feed{
@@ -107,7 +107,7 @@ func (h *microsubHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 			events, err := h.backend.Events()
 			if err != nil {
 				log.Println(err)
-				http.Error(w, "could not start sse connection", 500)
+				http.Error(w, "could not start sse connection", http.StatusInternalServerError)
 			}
 
 			// Remove this client from the map of connected clients
@@ -117,7 +117,7 @@ func (h *microsubHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 			}()
 
 			// Listen to connection close and un-register messageChan
-			notify := w.(http.CloseNotifier).CloseNotify()
+			notify := r.Context().Done()
 
 			go func() {
 				<-notify
@@ -127,10 +127,10 @@ func (h *microsubHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 			err = sse.WriteMessages(w, events)
 			if err != nil {
 				log.Println(err)
-				http.Error(w, "internal server error", 500)
+				http.Error(w, "internal server error", http.StatusInternalServerError)
 			}
 		} else {
-			http.Error(w, fmt.Sprintf("unknown action %s", action), 400)
+			http.Error(w, fmt.Sprintf("unknown action %s", action), http.StatusBadRequest)
 			return
 		}
 		return
@@ -147,7 +147,7 @@ func (h *microsubHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 				err := h.backend.ChannelsDelete(uid)
 				if err != nil {
 					log.Println(err)
-					http.Error(w, err.Error(), 500)
+					http.Error(w, err.Error(), http.StatusInternalServerError)
 					return
 				}
 				respondJSON(w, []string{})
@@ -158,7 +158,7 @@ func (h *microsubHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 				channel, err := h.backend.ChannelsCreate(name)
 				if err != nil {
 					log.Println(err)
-					http.Error(w, err.Error(), 500)
+					http.Error(w, err.Error(), http.StatusInternalServerError)
 					return
 				}
 				respondJSON(w, channel)
@@ -166,7 +166,7 @@ func (h *microsubHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 				channel, err := h.backend.ChannelsUpdate(uid, name)
 				if err != nil {
 					log.Println(err)
-					http.Error(w, err.Error(), 500)
+					http.Error(w, err.Error(), http.StatusInternalServerError)
 					return
 				}
 				respondJSON(w, channel)
@@ -177,7 +177,7 @@ func (h *microsubHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 			// h.HubIncomingBackend.CreateFeed(url, uid)
 			feed, err := h.backend.FollowURL(uid, url)
 			if err != nil {
-				http.Error(w, err.Error(), 500)
+				http.Error(w, err.Error(), http.StatusInternalServerError)
 				return
 			}
 			respondJSON(w, feed)
@@ -186,14 +186,14 @@ func (h *microsubHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 			url := values.Get("url")
 			err := h.backend.UnfollowURL(uid, url)
 			if err != nil {
-				http.Error(w, err.Error(), 500)
+				http.Error(w, err.Error(), http.StatusInternalServerError)
 				return
 			}
 			respondJSON(w, []string{})
 		} else if action == "preview" {
 			timeline, err := h.backend.PreviewURL(values.Get("url"))
 			if err != nil {
-				http.Error(w, err.Error(), 500)
+				http.Error(w, err.Error(), http.StatusInternalServerError)
 				return
 			}
 			respondJSON(w, timeline)
@@ -250,22 +250,21 @@ func (h *microsubHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 				if len(markAsRead) > 0 {
 					err := h.backend.MarkRead(channel, markAsRead)
 					if err != nil {
-						http.Error(w, err.Error(), 500)
+						http.Error(w, err.Error(), http.StatusInternalServerError)
 						return
 					}
 				} else {
 					log.Println("No uids specified for mark read")
 				}
 			} else {
-				http.Error(w, fmt.Sprintf("unknown method in timeline %s\n", method), 500)
+				http.Error(w, fmt.Sprintf("unknown method in timeline %s\n", method), http.StatusInternalServerError)
 				return
 			}
 
 			respondJSON(w, []string{})
 		} else {
-			http.Error(w, fmt.Sprintf("unknown action %s\n", action), 400)
+			http.Error(w, fmt.Sprintf("unknown action %s\n", action), http.StatusBadRequest)
 		}
 		return
 	}
-	return
 }