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https://github.com/woodpecker-ci/woodpecker.git
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b90e7904a5
closes #1636 closes #1429 supersedes #1586 Uses a different approach: just take the index.html compiled by vite and replace the paths to js and other files using regex. This is not compatible with the dev proxy which is also the reason why we can't use go templates for this.
96 lines
2.5 KiB
Go
96 lines
2.5 KiB
Go
// Copyright 2018 Drone.IO Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package web
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import (
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"crypto/md5"
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"fmt"
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"net/http"
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"regexp"
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"time"
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"github.com/gin-gonic/gin"
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"github.com/rs/zerolog/log"
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"github.com/woodpecker-ci/woodpecker/server"
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"github.com/woodpecker-ci/woodpecker/web"
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)
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// etag is an identifier for a resource version
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// it lets caches determine if resource is still the same and not send it again
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var (
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etag = fmt.Sprintf("%x", md5.Sum([]byte(time.Now().String())))
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indexHTML []byte
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)
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// New returns a gin engine to serve the web frontend.
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func New() (*gin.Engine, error) {
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e := gin.New()
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indexHTML = parseIndex()
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e.Use(setupCache)
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httpFS, err := web.HTTPFS()
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if err != nil {
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return nil, err
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}
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h := http.FileServer(httpFS)
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e.GET("/favicon.svg", redirect("/favicons/favicon-light-default.svg", http.StatusPermanentRedirect))
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e.GET("/favicons/*filepath", gin.WrapH(h))
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e.GET("/assets/*filepath", gin.WrapH(h))
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e.NoRoute(handleIndex)
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return e, nil
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}
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// redirect return gin helper to redirect a request
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func redirect(location string, status ...int) func(ctx *gin.Context) {
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return func(ctx *gin.Context) {
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code := http.StatusFound
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if len(status) == 1 {
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code = status[0]
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}
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http.Redirect(ctx.Writer, ctx.Request, location, code)
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}
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}
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func handleIndex(c *gin.Context) {
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rw := c.Writer
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rw.Header().Set("Content-Type", "text/html; charset=UTF-8")
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rw.WriteHeader(http.StatusOK)
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if _, err := rw.Write(indexHTML); err != nil {
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log.Error().Err(err).Msg("can not write index.html")
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}
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}
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func parseIndex() []byte {
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data, err := web.Lookup("index.html")
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if err != nil {
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log.Fatal().Err(err).Msg("can not find index.html")
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}
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if server.Config.Server.RootURL == "" {
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return data
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}
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return regexp.MustCompile(`/\S+\.(js|css|png|svg)`).ReplaceAll(data, []byte(server.Config.Server.RootURL+"$0"))
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}
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func setupCache(c *gin.Context) {
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c.Writer.Header().Set("Cache-Control", "public, max-age=31536000")
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c.Writer.Header().Del("Expires")
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c.Writer.Header().Set("ETag", etag)
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}
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