Make redirection work without Referer header

2 files changed, 33 insertions, 26 deletions

diff --git a/service/service.go b/service/service.go
index 088bcf4..01306d0 100644
--- a/service/service.go
+++ b/service/service.go
@@ -58,9 +58,11 @@ func NewService(clientName string,
 func getRendererContext(c *client) *renderer.Context {
 	var settings model.Settings
 	var session model.Session
+	var referrer string
 	if c != nil {
 		settings = c.Session.Settings
 		session = c.Session
+		referrer = c.url()
 	} else {
 		settings = *model.NewSettings()
 	}
@@ -73,6 +75,7 @@ func getRendererContext(c *client) *renderer.Context {
 		CSRFToken:        session.CSRFToken,
 		UserID:           session.UserID,
 		AntiDopamineMode: settings.AntiDopamineMode,
+		Referrer:         referrer,
 	}
 }
 
@@ -545,7 +548,7 @@ func (s *service) UserSearchPage(c *client,
 
 	if len(results.Statuses) == 20 {
 		offset += 20
-		nextLink = fmt.Sprintf("/usersearch/%s?q=%s&offset=%d", id, 
+		nextLink = fmt.Sprintf("/usersearch/%s?q=%s&offset=%d", id,
 			url.QueryEscape(q), offset)
 	}
 
@@ -608,7 +611,7 @@ func (s *service) SearchPage(c *client,
 	if (qType == "accounts" && len(results.Accounts) == 20) ||
 		(qType == "statuses" && len(results.Statuses) == 20) {
 		offset += 20
-		nextLink = fmt.Sprintf("/search?q=%s&type=%s&offset=%d", 
+		nextLink = fmt.Sprintf("/search?q=%s&type=%s&offset=%d",
 			url.QueryEscape(q), qType, offset)
 	}
 
@@ -721,7 +724,7 @@ func (s *service) NewSession(instance string) (rurl string, sid string, err erro
 	return
 }
 
-func (s *service) Signin(c *client, code string) (token string, 
+func (s *service) Signin(c *client, code string) (token string,
 	userID string, err error) {
 
 	if len(code) < 1 {
@@ -747,7 +750,7 @@ func (s *service) Signout(c *client) (err error) {
 	return
 }
 
-func (s *service) Post(c *client, content string, replyToID string, 
+func (s *service) Post(c *client, content string, replyToID string,
 	format string, visibility string, isNSFW bool,
 	files []*multipart.FileHeader) (id string, err error) {
 
diff --git a/service/transport.go b/service/transport.go
index 7ba52a4..882a351 100644
--- a/service/transport.go
+++ b/service/transport.go
@@ -46,6 +46,10 @@ type client struct {
 	Session   model.Session
 }
 
+func (c *client) url() string {
+	return c.Req.URL.RequestURI()
+}
+
 func setSessionCookie(w http.ResponseWriter, sid string, exp time.Duration) {
 	http.SetCookie(w, &http.Cookie{
 		Name:    "session_id",
@@ -301,7 +305,7 @@ func NewHandler(s *service, logger *log.Logger, staticDir string) http.Handler {
 			return err
 		}
 
-		location := c.Req.Header.Get("Referer")
+		location := c.Req.FormValue("referrer")
 		if len(replyToID) > 0 {
 			location = "/thread/" + replyToID + "#status-" + id
 		}
@@ -319,7 +323,7 @@ func NewHandler(s *service, logger *log.Logger, staticDir string) http.Handler {
 		if len(rid) > 0 {
 			id = rid
 		}
-		redirect(c, c.Req.Header.Get("Referer")+"#status-"+id)
+		redirect(c, c.Req.FormValue("referrer")+"#status-"+id)
 		return nil
 	}, CSRF, HTML)
 
@@ -333,7 +337,7 @@ func NewHandler(s *service, logger *log.Logger, staticDir string) http.Handler {
 		if len(rid) > 0 {
 			id = rid
 		}
-		redirect(c, c.Req.Header.Get("Referer")+"#status-"+id)
+		redirect(c, c.Req.FormValue("referrer")+"#status-"+id)
 		return nil
 	}, CSRF, HTML)
 
@@ -347,7 +351,7 @@ func NewHandler(s *service, logger *log.Logger, staticDir string) http.Handler {
 		if len(rid) > 0 {
 			id = rid
 		}
-		redirect(c, c.Req.Header.Get("Referer")+"#status-"+id)
+		redirect(c, c.Req.FormValue("referrer")+"#status-"+id)
 		return nil
 	}, CSRF, HTML)
 
@@ -361,7 +365,7 @@ func NewHandler(s *service, logger *log.Logger, staticDir string) http.Handler {
 		if len(rid) > 0 {
 			id = rid
 		}
-		redirect(c, c.Req.Header.Get("Referer")+"#status-"+id)
+		redirect(c, c.Req.FormValue("referrer")+"#status-"+id)
 		return nil
 	}, CSRF, HTML)
 
@@ -373,7 +377,7 @@ func NewHandler(s *service, logger *log.Logger, staticDir string) http.Handler {
 		if err != nil {
 			return err
 		}
-		redirect(c, c.Req.Header.Get("Referer")+"#status-"+statusID)
+		redirect(c, c.Req.FormValue("referrer")+"#status-"+statusID)
 		return nil
 	}, CSRF, HTML)
 
@@ -389,7 +393,7 @@ func NewHandler(s *service, logger *log.Logger, staticDir string) http.Handler {
 		if err != nil {
 			return err
 		}
-		redirect(c, c.Req.Header.Get("Referer"))
+		redirect(c, c.Req.FormValue("referrer"))
 		return nil
 	}, CSRF, HTML)
 
@@ -399,7 +403,7 @@ func NewHandler(s *service, logger *log.Logger, staticDir string) http.Handler {
 		if err != nil {
 			return err
 		}
-		redirect(c, c.Req.Header.Get("Referer"))
+		redirect(c, c.Req.FormValue("referrer"))
 		return nil
 	}, CSRF, HTML)
 
@@ -409,7 +413,7 @@ func NewHandler(s *service, logger *log.Logger, staticDir string) http.Handler {
 		if err != nil {
 			return err
 		}
-		redirect(c, c.Req.Header.Get("Referer"))
+		redirect(c, c.Req.FormValue("referrer"))
 		return nil
 	}, CSRF, HTML)
 
@@ -419,7 +423,7 @@ func NewHandler(s *service, logger *log.Logger, staticDir string) http.Handler {
 		if err != nil {
 			return err
 		}
-		redirect(c, c.Req.Header.Get("Referer"))
+		redirect(c, c.Req.FormValue("referrer"))
 		return nil
 	}, CSRF, HTML)
 
@@ -429,7 +433,7 @@ func NewHandler(s *service, logger *log.Logger, staticDir string) http.Handler {
 		if err != nil {
 			return err
 		}
-		redirect(c, c.Req.Header.Get("Referer"))
+		redirect(c, c.Req.FormValue("referrer"))
 		return nil
 	}, CSRF, HTML)
 
@@ -439,7 +443,7 @@ func NewHandler(s *service, logger *log.Logger, staticDir string) http.Handler {
 		if err != nil {
 			return err
 		}
-		redirect(c, c.Req.Header.Get("Referer"))
+		redirect(c, c.Req.FormValue("referrer"))
 		return nil
 	}, CSRF, HTML)
 
@@ -449,7 +453,7 @@ func NewHandler(s *service, logger *log.Logger, staticDir string) http.Handler {
 		if err != nil {
 			return err
 		}
-		redirect(c, c.Req.Header.Get("Referer"))
+		redirect(c, c.Req.FormValue("referrer"))
 		return nil
 	}, CSRF, HTML)
 
@@ -459,7 +463,7 @@ func NewHandler(s *service, logger *log.Logger, staticDir string) http.Handler {
 		if err != nil {
 			return err
 		}
-		redirect(c, c.Req.Header.Get("Referer"))
+		redirect(c, c.Req.FormValue("referrer"))
 		return nil
 	}, CSRF, HTML)
 
@@ -469,7 +473,7 @@ func NewHandler(s *service, logger *log.Logger, staticDir string) http.Handler {
 		if err != nil {
 			return err
 		}
-		redirect(c, c.Req.Header.Get("Referer"))
+		redirect(c, c.Req.FormValue("referrer"))
 		return nil
 	}, CSRF, HTML)
 
@@ -479,7 +483,7 @@ func NewHandler(s *service, logger *log.Logger, staticDir string) http.Handler {
 		if err != nil {
 			return err
 		}
-		redirect(c, c.Req.Header.Get("Referer"))
+		redirect(c, c.Req.FormValue("referrer"))
 		return nil
 	}, CSRF, HTML)
 
@@ -522,7 +526,7 @@ func NewHandler(s *service, logger *log.Logger, staticDir string) http.Handler {
 		if err != nil {
 			return err
 		}
-		redirect(c, c.Req.Header.Get("Referer"))
+		redirect(c, c.Req.FormValue("referrer"))
 		return nil
 	}, CSRF, HTML)
 
@@ -532,7 +536,7 @@ func NewHandler(s *service, logger *log.Logger, staticDir string) http.Handler {
 		if err != nil {
 			return err
 		}
-		redirect(c, c.Req.Header.Get("Referer"))
+		redirect(c, c.Req.FormValue("referrer"))
 		return nil
 	}, CSRF, HTML)
 
@@ -542,7 +546,7 @@ func NewHandler(s *service, logger *log.Logger, staticDir string) http.Handler {
 		if err != nil {
 			return err
 		}
-		redirect(c, c.Req.Header.Get("Referer"))
+		redirect(c, c.Req.FormValue("referrer"))
 		return nil
 	}, CSRF, HTML)
 
@@ -553,7 +557,7 @@ func NewHandler(s *service, logger *log.Logger, staticDir string) http.Handler {
 		if err != nil {
 			return err
 		}
-		redirect(c, c.Req.Header.Get("Referer"))
+		redirect(c, c.Req.FormValue("referrer"))
 		return nil
 	}, CSRF, HTML)
 
@@ -567,7 +571,7 @@ func NewHandler(s *service, logger *log.Logger, staticDir string) http.Handler {
 		if len(rid) > 0 {
 			id = rid
 		}
-		redirect(c, c.Req.Header.Get("Referer")+"#status-"+id)
+		redirect(c, c.Req.FormValue("referrer")+"#status-"+id)
 		return nil
 	}, CSRF, HTML)
 
@@ -581,7 +585,7 @@ func NewHandler(s *service, logger *log.Logger, staticDir string) http.Handler {
 		if len(rid) > 0 {
 			id = rid
 		}
-		redirect(c, c.Req.Header.Get("Referer")+"#status-"+id)
+		redirect(c, c.Req.FormValue("referrer")+"#status-"+id)
 		return nil
 	}, CSRF, HTML)