// RegisterWeb registers handlers to serve files for the web interface.
func RegisterWeb(r *route.Router, reloadCh chan<- struct{}) {
ihf := prometheus.InstrumentHandlerFunc
r.Get("/app/*filepath", ihf("app_files",
func(w http.ResponseWriter, req *http.Request) {
fp := route.Param(route.Context(req), "filepath")
serveAsset(w, req, filepath.Join("ui/app", fp))
},
))
r.Get("/lib/*filepath", ihf("lib_files",
func(w http.ResponseWriter, req *http.Request) {
fp := route.Param(route.Context(req), "filepath")
serveAsset(w, req, filepath.Join("ui/lib", fp))
},
))
r.Get("/metrics", prometheus.Handler().ServeHTTP)
r.Get("/", ihf("index", func(w http.ResponseWriter, req *http.Request) {
serveAsset(w, req, "ui/app/index.html")
}))
r.Post("/-/reload", func(w http.ResponseWriter, req *http.Request) {
w.Write([]byte("Reloading configuration file..."))
reloadCh <- struct{}{}
})
r.Get("/debug/*subpath", http.DefaultServeMux.ServeHTTP)
r.Post("/debug/*subpath", http.DefaultServeMux.ServeHTTP)
}
// RegisterWeb registers handlers to serve files for the web interface.
func RegisterWeb(r *route.Router) {
r.Get("/app/*filepath", func(w http.ResponseWriter, req *http.Request) {
fp := route.Param(route.Context(req), "filepath")
serveAsset(w, req, filepath.Join("ui/app", fp))
})
r.Get("/lib/*filepath", func(w http.ResponseWriter, req *http.Request) {
fp := route.Param(route.Context(req), "filepath")
serveAsset(w, req, filepath.Join("ui/lib", fp))
})
r.Get("/", func(w http.ResponseWriter, req *http.Request) {
serveAsset(w, req, "ui/app/index.html")
})
}
func (h Handler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
ctx := route.Context(r)
name := strings.Trim(route.Param(ctx, "filepath"), "/")
if name == "" {
name = "index.html"
}
file, err := GetFile(StaticFiles, name)
if err != nil {
if err != io.EOF {
log.Warn("Could not get file: ", err)
}
w.WriteHeader(http.StatusNotFound)
return
}
contentType := http.DetectContentType(file)
if strings.Contains(contentType, "text/plain") || strings.Contains(contentType, "application/octet-stream") {
parts := strings.Split(name, ".")
contentType = mimeMap[parts[len(parts)-1]]
}
w.Header().Set("Content-Type", contentType)
w.Header().Set("Cache-Control", "public, max-age=259200")
w.Write(file)
}
// RegisterWeb registers handlers to serve files for the web interface.
func RegisterWeb(r *route.Router) {
ihf := prometheus.InstrumentHandlerFunc
r.Get("/app/*filepath", ihf("app_files",
func(w http.ResponseWriter, req *http.Request) {
fp := route.Param(route.Context(req), "filepath")
serveAsset(w, req, filepath.Join("ui/app", fp))
},
))
r.Get("/lib/*filepath", ihf("lib_files",
func(w http.ResponseWriter, req *http.Request) {
fp := route.Param(route.Context(req), "filepath")
serveAsset(w, req, filepath.Join("ui/lib", fp))
},
))
r.Get("/metrics", prometheus.Handler().ServeHTTP)
r.Get("/", ihf("index", func(w http.ResponseWriter, req *http.Request) {
serveAsset(w, req, "ui/app/index.html")
}))
}
func (h *Handler) consoles(w http.ResponseWriter, r *http.Request) {
ctx := route.Context(r)
name := route.Param(ctx, "filepath")
file, err := http.Dir(h.options.ConsoleTemplatesPath).Open(name)
if err != nil {
http.Error(w, err.Error(), http.StatusNotFound)
return
}
text, err := ioutil.ReadAll(file)
if err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
// Provide URL parameters as a map for easy use. Advanced users may have need for
// parameters beyond the first, so provide RawParams.
rawParams, err := url.ParseQuery(r.URL.RawQuery)
if err != nil {
http.Error(w, err.Error(), http.StatusBadRequest)
return
}
params := map[string]string{}
for k, v := range rawParams {
params[k] = v[0]
}
data := struct {
RawParams url.Values
Params map[string]string
Path string
}{
RawParams: rawParams,
Params: params,
Path: strings.TrimLeft(name, "/"),
}
tmpl := template.NewTemplateExpander(string(text), "__console_"+name, data, model.Now(), h.queryEngine, h.options.ExternalURL.Path)
filenames, err := filepath.Glob(h.options.ConsoleLibrariesPath + "/*.lib")
if err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
result, err := tmpl.ExpandHTML(filenames)
if err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
io.WriteString(w, result)
}
func serveStaticAsset(w http.ResponseWriter, req *http.Request) {
fp := route.Param(route.Context(req), "filepath")
fp = filepath.Join("web/ui/static", fp)
info, err := ui.AssetInfo(fp)
if err != nil {
log.With("file", fp).Warn("Could not get file info: ", err)
w.WriteHeader(http.StatusNotFound)
return
}
file, err := ui.Asset(fp)
if err != nil {
if err != io.EOF {
log.With("file", fp).Warn("Could not get file: ", err)
}
w.WriteHeader(http.StatusNotFound)
return
}
http.ServeContent(w, req, info.Name(), info.ModTime(), bytes.NewReader(file))
}