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Merge pull request #2780 from letiemble/CORS_Support2

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Move CORS middleware to process un-authenticated OPTIONS requests
This commit is contained in:
Audrius Butkevicius 2016-02-12 21:29:45 +00:00
commit bf353a42cd
1 changed files with 8 additions and 4 deletions
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12
cmd/syncthing/gui.go
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@ -236,12 +236,12 @@ func (s *apiService) Serve() {
guiCfg := s.cfg.GUI()
// Add the CORS handling
handler := corsMiddleware(mux)
// Wrap everything in CSRF protection. The /rest prefix should be
// protected, other requests will grant cookies.
handler := csrfMiddleware(s.id.String()[:5], "/rest", guiCfg, mux)
// Add the CORS handling
handler = corsMiddleware(handler)
handler = csrfMiddleware(s.id.String()[:5], "/rest", guiCfg, handler)
// Add our version and ID as a header to responses
handler = withDetailsMiddleware(s.id, handler)
@ -382,6 +382,10 @@ func corsMiddleware(next http.Handler) http.Handler {
// Handle CORS headers and CORS OPTIONS request.
// CORS OPTIONS request are typically sent by browser during AJAX preflight
// when the browser initiate a POST request.
//
// As the OPTIONS request is unauthorized, this handler must be the first
// of the chain.
//
// See https://www.w3.org/TR/cors/ for details.
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
// Add a generous access-control-allow-origin header since we may be