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Implement redirection to canonical host.
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parent
ef1c211b7f
commit
f8e2f755d6
2 changed files with 30 additions and 0 deletions
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@ -27,6 +27,8 @@ func main() {
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flag.StringVar(&httpAddr, "http", ":8443", "web server `address`")
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flag.StringVar(&httpAddr, "http", ":8443", "web server `address`")
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flag.StringVar(&webserver.StaticRoot, "static", "./static/",
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flag.StringVar(&webserver.StaticRoot, "static", "./static/",
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"web server root `directory`")
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"web server root `directory`")
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flag.StringVar(&webserver.Redirect, "redirect", "",
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"redirect to canonical `host`")
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flag.StringVar(&dataDir, "data", "./data/",
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flag.StringVar(&dataDir, "data", "./data/",
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"data `directory`")
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"data `directory`")
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flag.StringVar(&group.Directory, "groups", "./groups/",
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flag.StringVar(&group.Directory, "groups", "./groups/",
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@ -31,6 +31,8 @@ var server atomic.Value
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var StaticRoot string
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var StaticRoot string
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var Redirect string
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func Serve(address string, dataDir string) error {
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func Serve(address string, dataDir string) error {
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http.Handle("/", &fileHandler{http.Dir(StaticRoot)})
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http.Handle("/", &fileHandler{http.Dir(StaticRoot)})
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http.HandleFunc("/group/", groupHandler)
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http.HandleFunc("/group/", groupHandler)
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@ -116,6 +118,20 @@ const (
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veryCachableCacheControl = "max-age=86400"
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veryCachableCacheControl = "max-age=86400"
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)
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)
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func redirect(w http.ResponseWriter, r *http.Request) bool {
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if Redirect == "" || strings.EqualFold(r.Host, Redirect) {
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return false
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}
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u := url.URL{
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Scheme: "https",
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Host: Redirect,
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Path: r.URL.Path,
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}
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http.Redirect(w, r, u.String(), http.StatusMovedPermanently)
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return true
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}
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func makeCachable(w http.ResponseWriter, p string, fi os.FileInfo, cachable bool) {
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func makeCachable(w http.ResponseWriter, p string, fi os.FileInfo, cachable bool) {
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etag := fmt.Sprintf("\"%v-%v\"", fi.Size(), fi.ModTime().UnixNano())
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etag := fmt.Sprintf("\"%v-%v\"", fi.Size(), fi.ModTime().UnixNano())
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w.Header().Set("ETag", etag)
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w.Header().Set("ETag", etag)
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@ -140,6 +156,10 @@ type fileHandler struct {
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}
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}
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func (fh *fileHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
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func (fh *fileHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
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if redirect(w, r) {
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return
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}
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mungeHeader(w)
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mungeHeader(w)
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p := r.URL.Path
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p := r.URL.Path
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// this ensures any leading .. are removed by path.Clean below
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// this ensures any leading .. are removed by path.Clean below
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@ -236,6 +256,10 @@ func parseGroupName(path string) string {
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}
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}
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func groupHandler(w http.ResponseWriter, r *http.Request) {
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func groupHandler(w http.ResponseWriter, r *http.Request) {
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if redirect(w, r) {
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return
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}
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mungeHeader(w)
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mungeHeader(w)
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name := parseGroupName(r.URL.Path)
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name := parseGroupName(r.URL.Path)
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if name == "" {
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if name == "" {
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@ -420,6 +444,10 @@ func wsHandler(w http.ResponseWriter, r *http.Request) {
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}
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}
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func recordingsHandler(w http.ResponseWriter, r *http.Request) {
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func recordingsHandler(w http.ResponseWriter, r *http.Request) {
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if redirect(w, r) {
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return
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}
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if len(r.URL.Path) < 12 || r.URL.Path[:12] != "/recordings/" {
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if len(r.URL.Path) < 12 || r.URL.Path[:12] != "/recordings/" {
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http.Error(w, "server error", http.StatusInternalServerError)
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http.Error(w, "server error", http.StatusInternalServerError)
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return
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return
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