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proxy: add static file server

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This commit is contained in:
Oliver Gugger
2019-10-29 09:24:03 +01:00
parent 9552a70cb9
commit 4d1fbbf4d6
2 changed files with 34 additions and 2 deletions
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31
proxy/proxy.go
View File

@@ -19,6 +19,8 @@ import (
type Proxy struct {
server *httputil.ReverseProxy
staticServer http.Handler
authenticator auth.Authenticator
}
@@ -40,13 +42,20 @@ func New(auth auth.Authenticator, services []*Service) (*Proxy, error) {
TLSClientConfig: tlsConfig,
}
grpcProxy := &httputil.ReverseProxy{
Director: director(auth, services),
Transport: transport,
Director: director(auth, services),
Transport: transport,
ModifyResponse: func(res *http.Response) error {
addCorsHeaders(res.Header)
return nil
},
FlushInterval: -1,
}
staticServer := http.FileServer(http.Dir("static"))
return &Proxy{
grpcProxy,
staticServer,
auth,
}, nil
}
@@ -108,9 +117,27 @@ func director(auth auth.Authenticator, services []*Service) func(req *http.Reque
}
}
func addCorsHeaders(header http.Header) {
header.Add("Access-Control-Allow-Origin", "*")
header.Add("Access-Control-Allow-Methods", "GET, POST, OPTIONS")
header.Add("Access-Control-Allow-Headers", "Authorization, Grpc-Metadata-macaroon")
}
// ServeHTTP checks a client's headers for appropriate authorization and either
// returns a challenge or forwards their request to the target backend service.
func (g *Proxy) ServeHTTP(w http.ResponseWriter, r *http.Request) {
if r.Method == "GET" &&
(r.URL.Path == "/" || r.URL.Path == "/index.html") {
g.staticServer.ServeHTTP(w, r)
return
}
if r.Method == "OPTIONS" {
addCorsHeaders(w.Header())
w.WriteHeader(200)
return
}
if !g.authenticator.Accept(&r.Header) {
challengeHeader, err := g.authenticator.FreshChallengeHeader(r)
if err != nil {

5
static/index.html Normal file
View File

@@ -0,0 +1,5 @@
<html>
<body>
<h1>LSAT auth server</h1>
</body>
</html>