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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,160 @@ | ||
| // Copyright 2020 Wayback Archiver. All rights reserved. | ||
| // Use of this source code is governed by the GNU GPL v3 | ||
| // license that can be found in the LICENSE file. | ||
|
|
||
| package anonymity // import "github.com/wabarc/wayback/service/anonymity" | ||
|
|
||
| import ( | ||
| "encoding/json" | ||
| "net/http" | ||
|
|
||
| "github.com/gorilla/mux" | ||
| "github.com/wabarc/logger" | ||
| "github.com/wabarc/wayback/template" | ||
| ) | ||
|
|
||
| type web struct { | ||
| router *mux.Router | ||
| template *template.Template | ||
| } | ||
|
|
||
| func newWeb() *web { | ||
| router := mux.NewRouter() | ||
| web := &web{ | ||
| router: router, | ||
| template: template.New(router), | ||
| } | ||
| if err := web.template.ParseTemplates(); err != nil { | ||
| logger.Fatal("[web] unable to parse templates: %v", err) | ||
| } | ||
| if err := template.GenerateJavascriptBundles(); err != nil { | ||
| logger.Fatal("[web] unable to generate JavaScript bundles: %v", err) | ||
| } | ||
| return web | ||
| } | ||
|
|
||
| func (web *web) handle() http.Handler { | ||
| web.router.HandleFunc("/", web.home) | ||
| web.router.HandleFunc("/{name}.js", web.showJavascript).Name("javascript").Methods(http.MethodGet) | ||
| web.router.HandleFunc("/favicon.ico", web.showFavicon).Name("favicon").Methods(http.MethodGet) | ||
| web.router.HandleFunc("/icon/{filename}", web.showAppIcon).Name("icon").Methods(http.MethodGet) | ||
| web.router.HandleFunc("/manifest.json", web.showWebManifest).Name("manifest").Methods(http.MethodGet) | ||
| web.router.HandleFunc("/offline.html", web.showOfflinePage).Methods(http.MethodGet) | ||
|
|
||
| web.router.HandleFunc("/w", func(w http.ResponseWriter, r *http.Request) { web.process(w, r) }).Methods(http.MethodPost) | ||
|
|
||
| web.router.HandleFunc("/robots.txt", func(w http.ResponseWriter, r *http.Request) { | ||
| w.Header().Set("Content-Type", "text/plain") | ||
| w.Write([]byte("User-agent: *\nDisallow: /")) | ||
| }) | ||
|
|
||
| return web.router | ||
| } | ||
|
|
||
| func (web *web) home(w http.ResponseWriter, r *http.Request) { | ||
| logger.Debug("[web] access home") | ||
| w.Header().Set("Cache-Control", "max-age=2592000") | ||
| if html, ok := web.template.Render("layout", nil); ok { | ||
| w.Write(html) | ||
| } else { | ||
| logger.Error("[web] render template for home request failed") | ||
| http.Error(w, "Internal Server Error", 500) | ||
| } | ||
| } | ||
|
|
||
| func (web *web) showOfflinePage(w http.ResponseWriter, r *http.Request) { | ||
| logger.Debug("[web] access offline page") | ||
| // if f, ok := w.(http.Flusher); ok { | ||
| // f.Flush() | ||
| // } | ||
| if html, ok := web.template.Render("offline", nil); ok { | ||
| w.Write(html) | ||
| } else { | ||
| logger.Error("[web] render template for offline request failed") | ||
| http.Error(w, "Internal Server Error", 500) | ||
| } | ||
| } | ||
|
|
||
| func (web *web) showWebManifest(w http.ResponseWriter, r *http.Request) { | ||
| logger.Debug("[web] access manifest") | ||
| type webManifestIcon struct { | ||
| Source string `json:"src"` | ||
| Sizes string `json:"sizes"` | ||
| Type string `json:"type"` | ||
| } | ||
|
|
||
| type webManifest struct { | ||
| Name string `json:"name"` | ||
| Description string `json:"description"` | ||
| ShortName string `json:"short_name"` | ||
| StartURL string `json:"start_url"` | ||
| Icons []webManifestIcon `json:"icons"` | ||
| Display string `json:"display"` | ||
| ThemeColor string `json:"theme_color"` | ||
| } | ||
|
|
||
| manifest := &webManifest{ | ||
| Name: "Wayback Archiver", | ||
| ShortName: "Wayback", | ||
| Description: "A toolkit for snapshot webpages", | ||
| Display: "standalone", | ||
| ThemeColor: "#f7f7f7", | ||
| StartURL: "/", | ||
| Icons: []webManifestIcon{ | ||
| {Source: template.Path(web.router, "icon", "filename", "icon-120.png"), Sizes: "120x120", Type: "image/png"}, | ||
| {Source: template.Path(web.router, "icon", "filename", "icon-192.png"), Sizes: "192x192", Type: "image/png"}, | ||
| {Source: template.Path(web.router, "icon", "filename", "icon-512.png"), Sizes: "512x512", Type: "image/png"}, | ||
| }, | ||
| } | ||
|
|
||
| w.Header().Set("Cache-Control", "max-age=259200") | ||
| w.Header().Set("Content-Type", "application/manifest+json") | ||
| if data, err := json.Marshal(manifest); err != nil { | ||
| logger.Error("[web] encode for response failed, %v", err) | ||
| } else { | ||
| w.Write(data) | ||
| } | ||
| } | ||
|
|
||
| func (web *web) showFavicon(w http.ResponseWriter, r *http.Request) { | ||
| logger.Debug("[web] access favicon") | ||
|
|
||
| blob, err := template.LoadImageFile("favicon.ico") | ||
| if err != nil { | ||
| return | ||
| } | ||
| w.Header().Set("Content-Type", "image/x-icon") | ||
| w.Write(blob) | ||
| } | ||
|
|
||
| func (web *web) showAppIcon(w http.ResponseWriter, r *http.Request) { | ||
| logger.Debug("[web] access application icon") | ||
|
|
||
| filename := routeParam(r, "filename") | ||
| blob, err := template.LoadImageFile(filename) | ||
| if err != nil { | ||
| return | ||
| } | ||
| w.Header().Set("Cache-Control", "max-age=2592000") | ||
| w.Header().Set("Content-Type", "image/png") | ||
| w.Write(blob) | ||
| } | ||
|
|
||
| func (web *web) showJavascript(w http.ResponseWriter, r *http.Request) { | ||
| filename := routeParam(r, "name") | ||
| logger.Debug("[web] access javascript %s", filename) | ||
| _, found := template.JavascriptBundleChecksums[filename] | ||
| if !found { | ||
| return | ||
| } | ||
| contents := template.JavascriptBundles[filename] | ||
|
|
||
| w.Header().Set("Cache-Control", "max-age=2592000") | ||
| w.Header().Set("Content-Type", "text/javascript; charset=utf-8") | ||
| w.Write(contents) | ||
| } | ||
|
|
||
| func routeParam(r *http.Request, param string) string { | ||
| vars := mux.Vars(r) | ||
| return vars[param] | ||
| } |
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