167 lines
5.4 KiB
Go
167 lines
5.4 KiB
Go
package home
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import (
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"context"
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"fmt"
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"io/fs"
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"log"
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"mime"
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"net"
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"net/http"
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"os"
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"strings"
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"time"
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activitypubhttpdelivery "source.toby3d.me/toby3d/home/internal/activitypub/delivery/http"
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"source.toby3d.me/toby3d/home/internal/common"
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"source.toby3d.me/toby3d/home/internal/domain"
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pagefsrepo "source.toby3d.me/toby3d/home/internal/entry/repository/fs"
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pageucase "source.toby3d.me/toby3d/home/internal/entry/usecase"
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"source.toby3d.me/toby3d/home/internal/middleware"
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resourcehttpdelivery "source.toby3d.me/toby3d/home/internal/resource/delivery/http"
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resourcefsrepo "source.toby3d.me/toby3d/home/internal/resource/repository/fs"
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resourceucase "source.toby3d.me/toby3d/home/internal/resource/usecase"
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servercase "source.toby3d.me/toby3d/home/internal/server/usecase"
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sitehttpdelivery "source.toby3d.me/toby3d/home/internal/site/delivery/http"
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sitefsrepo "source.toby3d.me/toby3d/home/internal/site/repository/fs"
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siteucase "source.toby3d.me/toby3d/home/internal/site/usecase"
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statichttpdelivery "source.toby3d.me/toby3d/home/internal/static/delivery/http"
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staticfsrepo "source.toby3d.me/toby3d/home/internal/static/repository/fs"
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staticucase "source.toby3d.me/toby3d/home/internal/static/usecase"
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themehttpdelivery "source.toby3d.me/toby3d/home/internal/theme/delivery/http"
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themefsrepo "source.toby3d.me/toby3d/home/internal/theme/repository/fs"
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themeucase "source.toby3d.me/toby3d/home/internal/theme/usecase"
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"source.toby3d.me/toby3d/home/internal/urlutil"
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webfingerhttpdelivery "source.toby3d.me/toby3d/home/internal/webfinger/delivery/http"
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webfingerucase "source.toby3d.me/toby3d/home/internal/webfinger/usecase"
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)
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type App struct {
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server *http.Server
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}
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func NewApp(logger *log.Logger, config *domain.Config) (*App, error) {
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themeDir := os.DirFS(config.ThemeDir)
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partialsDir, err := fs.Sub(themeDir, "partials")
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if err != nil {
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return nil, fmt.Errorf("cannot substitute into partials subdirectory: %w", err)
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}
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contentDir := os.DirFS(config.ContentDir)
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resources := resourcefsrepo.NewFileServerResourceRepository(contentDir)
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sites := sitefsrepo.NewFileSystemSiteRepository(contentDir)
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siter := siteucase.NewSiteUseCase(sites, resources)
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staticDir := os.DirFS(config.StaticDir)
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statics := staticfsrepo.NewFileServerStaticRepository(staticDir)
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staticer := staticucase.NewStaticUseCase(statics)
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resourcer := resourceucase.NewResourceUseCase(resources)
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themes := themefsrepo.NewFileSystemThemeRepository(themeDir)
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themer := themeucase.NewThemeUseCase(partialsDir, themes)
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entries := pagefsrepo.NewFileSystemPageRepository(contentDir)
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entrier := pageucase.NewEntryUseCase(entries, resources)
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serverer := servercase.NewServerUseCase(sites)
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webfingerer := webfingerucase.NewWebFingerUseCase(sites)
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webfingerHandler := webfingerhttpdelivery.NewHandler(webfingerer)
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resourceHandler := resourcehttpdelivery.NewHandler(resourcer, contentDir)
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staticHandler := statichttpdelivery.NewHandler(staticer)
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siteHandler := sitehttpdelivery.NewHandler(siter)
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themeHandler := themehttpdelivery.NewHandler(themer)
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activityPubHadnler := activitypubhttpdelivery.NewHandler()
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handler := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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// NOTE(toby3d): any file in $HOME_STATIC_DIR is public and
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// unprotected by design, so it's safe to search it first before
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// deep down to any page or it's resource which might be
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// protected by middleware or something else.
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if handler, err := staticHandler.Handle(r.Context(), r.URL.Path); err == nil {
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handler.ServeHTTP(w, r)
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return
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}
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head, tail := urlutil.ShiftPath(r.URL.Path)
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switch strings.ToLower(head) {
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case ".well-known":
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switch strings.ToLower(tail) {
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case "/webfinger":
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webfingerHandler.ServeHTTP(w, r)
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return
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}
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}
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// NOTE(toby3d): read $HOME_CONTENT_DIR/index.md as a source of
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// truth and global settings for any child entry.
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site, handler, err := siteHandler.Handle(r.Context(), head)
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if 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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mediaType, _, _ := mime.ParseMediaType(r.Header.Get(common.HeaderAccept))
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if handler != nil {
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if strings.EqualFold(mediaType, common.MIMEApplicationLdJSON) {
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activityPubHadnler.HandleProfile(site).ServeHTTP(w, r)
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} else {
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handler.ServeHTTP(w, r)
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}
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return
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}
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if site.IsMultiLingual() {
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r.URL.Path = tail
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}
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if handler, err = resourceHandler.Handle(r.Context(), r.URL.Path); err == nil {
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handler.ServeHTTP(w, r)
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return
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}
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entry, err := entrier.Do(r.Context(), site.Language, r.URL.Path)
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if err != nil {
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http.NotFound(w, r)
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return
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}
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switch strings.ToLower(mediaType) {
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default:
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themeHandler.Handle(site, entry).ServeHTTP(w, r)
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case common.MIMEApplicationLdJSON:
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activityPubHadnler.HandleEntry(site, entry).ServeHTTP(w, r)
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}
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})
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chain := middleware.Chain{
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// middleware.LogFmt(),
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middleware.Redirect(middleware.RedirectConfig{Serverer: serverer}),
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middleware.Header(middleware.HeaderConfig{Serverer: serverer}),
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}
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return &App{server: &http.Server{
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Addr: config.AddrPort().String(),
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Handler: chain.Handler(handler),
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ErrorLog: logger,
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WriteTimeout: 500 * time.Millisecond,
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}}, nil
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}
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func (a *App) Run(ln net.Listener) error {
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if err := a.server.Serve(ln); err != nil {
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return fmt.Errorf("cannot listen and serve server: %w", err)
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}
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return nil
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}
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func (a *App) Stop(ctx context.Context) error {
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if err := a.server.Shutdown(ctx); err != nil {
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return fmt.Errorf("failed to shutdown app: %w", err)
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}
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return nil
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}
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