mirror of
https://github.com/idanoo/autobrr
synced 2025-07-22 16:29:12 +00:00
0391629862
* chore: update copyright year in license headers * Revert "chore: update copyright year in license headers" This reverts commit 3e58129c431b9a491089ce36b908f9bb6ba38ed3. * chore: update copyright year in license headers * fix: sort go imports * fix: add missing license headers
265 lines
6.6 KiB
Go
265 lines
6.6 KiB
Go
// Copyright (c) 2021 - 2025, Ludvig Lundgren and the autobrr contributors.
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// SPDX-License-Identifier: GPL-2.0-or-later
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package http
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import (
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"bufio"
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"bytes"
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"html/template"
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"io"
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"io/fs"
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"net/http"
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"os"
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filePath "path"
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"strings"
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"github.com/go-chi/chi/v5"
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"github.com/rs/zerolog"
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)
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type webHandler struct {
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log zerolog.Logger
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embedFS fs.FS
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baseUrl string
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assetBaseURL string
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version string
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files map[string]string
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}
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func newWebHandler(log zerolog.Logger, embedFS fs.FS, version, baseURL, assetBaseURL string) *webHandler {
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return &webHandler{
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log: log.With().Str("module", "web-assets").Logger(),
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embedFS: embedFS,
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baseUrl: baseURL,
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assetBaseURL: assetBaseURL,
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version: version,
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files: make(map[string]string),
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}
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}
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// registerAssets walks the FS Dist dir and registers each file as a route
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func (h *webHandler) registerAssets(r *chi.Mux) {
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err := fs.WalkDir(h.embedFS, ".", func(path string, d fs.DirEntry, err error) error {
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if err != nil {
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return err
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}
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if d.IsDir() {
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//h.log.Trace().Msgf("web assets: skip dir: %s", d.Name())
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return nil
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}
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h.log.Trace().Msgf("web assets: found path: %s", path)
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// ignore index.html, so we can render it as a template and inject variables
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if path == "index.html" || path == "manifest.webmanifest" || path == ".gitkeep" {
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return nil
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}
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// use old path.Join to not be os specific
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FileFS(r, filePath.Join("/", path), path, h.embedFS)
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h.files[path] = path
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return nil
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})
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if err != nil {
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return
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}
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}
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func (h *webHandler) RegisterRoutes(r *chi.Mux) {
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h.registerAssets(r)
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// Serve static files without a prefix
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assets, err := fs.Sub(h.embedFS, "assets")
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if err != nil {
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h.log.Error().Err(err).Msg("could not load assets sub dir")
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}
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StaticFSNew(r, h.baseUrl, "/assets", assets)
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p := IndexParams{
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Title: "Dashboard",
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Version: h.version,
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BaseUrl: h.baseUrl,
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AssetBaseUrl: h.assetBaseURL,
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}
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// serve on base route
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r.Get("/", func(w http.ResponseWriter, r *http.Request) {
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if err := h.RenderIndex(w, p); err != nil {
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http.Error(w, err.Error(), http.StatusInternalServerError)
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return
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}
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})
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// handle manifest
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r.Get("/manifest.webmanifest", func(w http.ResponseWriter, r *http.Request) {
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if err := h.RenderManifest(w, p); err != nil {
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http.Error(w, err.Error(), http.StatusInternalServerError)
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return
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}
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})
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// handle all other routes
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r.Get("/*", func(w http.ResponseWriter, r *http.Request) {
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file := strings.TrimPrefix(r.RequestURI, h.baseUrl)
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if strings.Contains(file, "favicon.ico") {
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fsFile(w, r, "favicon.ico", h.embedFS)
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return
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}
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if strings.Contains(file, "Inter-Variable.woff2") {
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fsFile(w, r, "Inter-Variable.woff2", h.embedFS)
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return
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}
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// if valid web route then serve html
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if validWebRoute(file) || file == "index.html" {
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if err := h.RenderIndex(w, p); err != nil {
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http.Error(w, err.Error(), http.StatusInternalServerError)
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return
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}
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return
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}
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// if not valid web route then try and serve files
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fsFile(w, r, file, h.embedFS)
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})
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}
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func (h *webHandler) RenderIndex(w io.Writer, p IndexParams) error {
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return h.parseIndex().Execute(w, p)
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}
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func (h *webHandler) parseIndex() *template.Template {
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return template.Must(template.New("index.html").ParseFS(h.embedFS, "index.html"))
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}
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func (h *webHandler) RenderManifest(w io.Writer, p IndexParams) error {
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return h.parseManifest().Execute(w, p)
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}
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func (h *webHandler) parseManifest() *template.Template {
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return template.Must(template.New("manifest.webmanifest").ParseFS(h.embedFS, "manifest.webmanifest"))
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}
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func (h *webHandler) RenderFallbackIndex(w io.Writer) error {
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p := IndexParams{
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Title: "autobrr Dashboard",
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Version: h.version,
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BaseUrl: h.baseUrl,
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AssetBaseUrl: h.assetBaseURL,
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}
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return h.parseFallbackIndex().Execute(w, p)
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}
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func (h *webHandler) parseFallbackIndex() *template.Template {
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return template.Must(template.New("fallback-index").Parse(`<!DOCTYPE html>
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<html>
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<head>
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<title>autobrr</title>
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<style>
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@media (prefers-color-scheme: dark) {
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body {
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color:#fff;
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background:#333333
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}
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a {
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color: #3d70ea
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}
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}
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</style>
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</head>
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<body>
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<span>Must use base url: <a href="{{.BaseUrl}}">{{.BaseUrl}}</a></span>
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</body>
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</html>
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`))
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}
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type defaultFS struct {
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prefix string
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fs fs.FS
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}
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type IndexParams struct {
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Title string
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Version string
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BaseUrl string
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AssetBaseUrl string
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}
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func (fs defaultFS) Open(name string) (fs.File, error) {
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if fs.fs == nil {
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return os.Open(name)
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}
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return fs.fs.Open(name)
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}
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// FileFS registers a new route with path to serve a file from the provided file system.
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func FileFS(r *chi.Mux, path, file string, filesystem fs.FS) {
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r.Get(path, StaticFileHandler(file, filesystem))
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}
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// StaticFileHandler creates a handler function to serve a file from the provided file system.
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func StaticFileHandler(file string, filesystem fs.FS) http.HandlerFunc {
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return func(w http.ResponseWriter, r *http.Request) {
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fsFile(w, r, file, filesystem)
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}
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}
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//// StaticFS registers a new route with path prefix to serve static files from the provided file system.
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//func StaticFS(r *chi.Mux, pathPrefix string, filesystem fs.FS) {
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// r.Handle(pathPrefix+"*", http.StripPrefix(pathPrefix, http.FileServer(http.FS(filesystem))))
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//}
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// StaticFSNew registers a new route with path prefix to serve static files from the provided file system.
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func StaticFSNew(r *chi.Mux, baseUrl, pathPrefix string, filesystem fs.FS) {
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r.Handle(pathPrefix+"*", http.StripPrefix(filePath.Join(baseUrl, pathPrefix), http.FileServer(http.FS(filesystem))))
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}
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// fsFile is a helper function to serve a file from the provided file system.
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func fsFile(w http.ResponseWriter, r *http.Request, file string, filesystem fs.FS) {
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f, err := filesystem.Open(file)
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if err != nil {
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http.Error(w, "File not found", http.StatusNotFound)
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return
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}
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defer f.Close()
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stat, err := f.Stat()
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if err != nil {
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http.Error(w, "File not found", http.StatusNotFound)
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return
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}
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data, err := io.ReadAll(bufio.NewReader(f))
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if err != nil {
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http.Error(w, "Failed to read the file", http.StatusInternalServerError)
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return
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}
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reader := bytes.NewReader(data)
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http.ServeContent(w, r, file, stat.ModTime(), reader)
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}
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var validWebRoutes = []string{"filters", "releases", "settings", "logs", "onboard", "login", "logout"}
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func validWebRoute(route string) bool {
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if route == "" || route == "/" {
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return true
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}
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for _, valid := range validWebRoutes {
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if strings.HasPrefix(route, valid) || strings.HasPrefix(route, "/"+valid) {
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return true
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}
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}
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return false
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}
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