harness-drone/server/web/web.go
2017-07-31 15:15:05 -04:00

102 lines
2.3 KiB
Go

package web
import (
"context"
"crypto/md5"
"fmt"
"net/http"
"time"
"github.com/drone/drone-ui/dist"
"github.com/drone/drone/model"
"github.com/drone/drone/server/template"
"github.com/drone/drone/shared/token"
"github.com/drone/drone/version"
"github.com/dimfeld/httptreemux"
)
// Endpoint provides the website endpoints.
type Endpoint interface {
// Register registers the provider endpoints.
Register(*httptreemux.ContextMux)
}
// New returns the default website endpoint.
func New() Endpoint {
return new(website)
}
type website struct{}
func (w *website) Register(mux *httptreemux.ContextMux) {
r := dist.New()
h := http.FileServer(r)
h = setupCache(h)
mux.Handler("GET", "/favicon-32x32.png", h)
mux.Handler("GET", "/favicon-16x16.png", h)
mux.Handler("GET", "/src/*filepath", h)
mux.Handler("GET", "/bower_components/*filepath", h)
mux.NotFoundHandler = handleIndex
}
func handleIndex(rw http.ResponseWriter, r *http.Request) {
rw.WriteHeader(200)
var csrf string
var user, _ = ToUser(r.Context())
if user != nil {
csrf, _ = token.New(
token.CsrfToken,
user.Login,
).Sign(user.Hash)
}
params := map[string]interface{}{
"user": user,
"csrf": csrf,
"version": version.Version.String(),
}
rw.Header().Set("Content-Type", "text/html; charset=UTF-8")
template.T.ExecuteTemplate(rw, "index_polymer.html", params)
}
func setupCache(h http.Handler) http.Handler {
data := []byte(time.Now().String())
etag := fmt.Sprintf("%x", md5.Sum(data))
return http.HandlerFunc(
func(w http.ResponseWriter, r *http.Request) {
w.Header().Set("Cache-Control", "public, max-age=31536000")
w.Header().Del("Expires")
w.Header().Set("ETag", etag)
h.ServeHTTP(w, r)
},
)
}
func resetCache(h http.Handler) http.Handler {
return http.HandlerFunc(
func(w http.ResponseWriter, r *http.Request) {
w.Header().Del("Cache-Control")
w.Header().Del("Last-Updated")
w.Header().Del("Expires")
w.Header().Del("ETag")
h.ServeHTTP(w, r)
},
)
}
// WithUser returns a context with the current authenticated user.
func WithUser(c context.Context, user *model.User) context.Context {
return context.WithValue(c, userKey, user)
}
// ToUser returns a user from the context.
func ToUser(c context.Context) (*model.User, bool) {
user, ok := c.Value(userKey).(*model.User)
return user, ok
}
type key int
const userKey key = 0