60 lines
1.7 KiB
Go
60 lines
1.7 KiB
Go
package http
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import (
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"net/http"
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"strings"
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"github.com/prometheus/client_golang/prometheus"
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)
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// PlatformHandler is a collection of all the service handlers.
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type PlatformHandler struct {
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AssetHandler *AssetHandler
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APIHandler http.Handler
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}
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func setCORSResponseHeaders(w http.ResponseWriter, r *http.Request) {
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if origin := r.Header.Get("Origin"); origin != "" {
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w.Header().Set("Access-Control-Allow-Origin", origin)
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w.Header().Set("Access-Control-Allow-Methods", "POST, GET, OPTIONS, PUT, DELETE")
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w.Header().Set("Access-Control-Allow-Headers", "Accept, Content-Type, Content-Length, Accept-Encoding, Authorization")
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}
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}
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// NewPlatformHandler returns a platform handler that serves the API and associated assets.
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func NewPlatformHandler(b *APIBackend) *PlatformHandler {
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h := NewAuthenticationHandler()
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h.Handler = NewAPIHandler(b)
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h.RegisterNoAuthRoute("GET", "/api/v2")
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return &PlatformHandler{
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AssetHandler: NewAssetHandler(),
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APIHandler: h,
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}
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}
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// ServeHTTP delegates a request to the appropriate subhandler.
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func (h *PlatformHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
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setCORSResponseHeaders(w, r)
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if r.Method == "OPTIONS" {
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return
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}
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// Serve the chronograf assets for any basepath that does not start with addressable parts
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// of the platform API.
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if !strings.HasPrefix(r.URL.Path, "/v1") &&
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!strings.HasPrefix(r.URL.Path, "/api/v2") &&
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!strings.HasPrefix(r.URL.Path, "/chronograf/") {
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h.AssetHandler.ServeHTTP(w, r)
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return
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}
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h.APIHandler.ServeHTTP(w, r)
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}
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// PrometheusCollectors satisfies the prom.PrometheusCollector interface.
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func (h *PlatformHandler) PrometheusCollectors() []prometheus.Collector {
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// TODO: collect and return relevant metrics.
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return nil
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}
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