woodpecker/server/web/web.go
Anbraten 56f957b4e6
Improve favicons (#576)
- dark-mode favicon variants
- favicons based on pipeline state if opened build page

Co-authored-by: 6543 <6543@obermui.de>
2021-12-08 13:58:00 +01:00

75 lines
2 KiB
Go

// Copyright 2018 Drone.IO Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package web
import (
"crypto/md5"
"fmt"
"net/http"
"time"
"github.com/gin-gonic/gin"
"github.com/rs/zerolog/log"
"github.com/woodpecker-ci/woodpecker/web"
)
// etag is an identifier for a resource version
// it lets caches determine if resource is still the same and not send it again
var etag = fmt.Sprintf("%x", md5.Sum([]byte(time.Now().String())))
// New returns a gin engine to serve the web frontend.
func New() *gin.Engine {
e := gin.New()
e.Use(setupCache)
h := http.FileServer(web.HTTPFS())
e.GET("/favicon.svg", redirect("/favicons/favicon-light-default.svg", http.StatusPermanentRedirect))
e.GET("/favicons/*filepath", gin.WrapH(h))
e.GET("/assets/*filepath", gin.WrapH(h))
e.NoRoute(handleIndex)
return e
}
// redirect return gin helper to redirect a request
func redirect(location string, status ...int) func(ctx *gin.Context) {
return func(ctx *gin.Context) {
code := http.StatusFound
if len(status) == 1 {
code = status[0]
}
http.Redirect(ctx.Writer, ctx.Request, location, code)
}
}
func handleIndex(c *gin.Context) {
rw := c.Writer
data := web.MustLookup("index.html")
rw.Header().Set("Content-Type", "text/html; charset=UTF-8")
rw.WriteHeader(200)
if _, err := rw.Write(data); err != nil {
log.Error().Err(err).Msg("can not write index.html")
}
}
func setupCache(c *gin.Context) {
c.Writer.Header().Set("Cache-Control", "public, max-age=31536000")
c.Writer.Header().Del("Expires")
c.Writer.Header().Set("ETag", etag)
}