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package app
import (
"html/template"
"log"
"net"
"net/http"
"github.com/fsnotify/fsnotify"
"github.com/gorilla/mux"
"github.com/wybiral/tube/pkg/media"
)
type App struct {
Config *Config
Library *media.Library
Watcher *fsnotify.Watcher
Templates *template.Template
Listener net.Listener
Router *mux.Router
}
func NewApp(cfg *Config) (*App, error) {
if cfg == nil {
cfg = DefaultConfig()
}
a := &App{
Config: cfg,
}
a.Library = media.NewLibrary()
w, err := fsnotify.NewWatcher()
if err != nil {
return nil, err
}
a.Watcher = w
ln, err := newListener(cfg.Server)
if err != nil {
return nil, err
}
a.Listener = ln
a.Templates = template.Must(template.ParseGlob("templates/*"))
r := mux.NewRouter().StrictSlash(true)
r.HandleFunc("/", a.indexHandler).Methods("GET")
r.HandleFunc("/v/{id}.mp4", a.videoHandler).Methods("GET")
r.HandleFunc("/t/{id}", a.thumbHandler).Methods("GET")
r.HandleFunc("/v/{id}", a.pageHandler).Methods("GET")
fsHandler := http.StripPrefix(
"/static/",
http.FileServer(http.Dir("./static/")),
)
r.PathPrefix("/static/").Handler(fsHandler).Methods("GET")
a.Router = r
return a, nil
}
func (a *App) Run() error {
path := a.Config.LibraryPath
err := a.Library.Import(path)
if err != nil {
return err
}
a.Watcher.Add(path)
go a.watch()
return http.Serve(a.Listener, a.Router)
}
func (a *App) watch() {
for {
e, ok := <-a.Watcher.Events
if !ok {
return
}
if e.Op&fsnotify.Create > 0 {
// add new files to library
a.Library.Add(e.Name)
} else if e.Op&(fsnotify.Write|fsnotify.Chmod) > 0 {
// writes and chmods should remove old file before adding again
a.Library.Remove(e.Name)
a.Library.Add(e.Name)
} else if e.Op&(fsnotify.Remove|fsnotify.Rename) > 0 {
// remove and rename just remove file
// fsnotify will signal a Create event with the new file name
a.Library.Remove(e.Name)
}
}
}
func (a *App) indexHandler(w http.ResponseWriter, r *http.Request) {
log.Printf("/")
pl := a.Library.Playlist()
if len(pl) > 0 {
http.Redirect(w, r, "/v/"+pl[0].ID, 302)
} else {
a.Templates.ExecuteTemplate(w, "index.html", &struct {
Playing *media.Video
Playlist media.Playlist
}{
Playing: &media.Video{ID: ""},
Playlist: a.Library.Playlist(),
})
}
}
func (a *App) pageHandler(w http.ResponseWriter, r *http.Request) {
vars := mux.Vars(r)
id := vars["id"]
log.Printf("/v/%s", id)
playing, ok := a.Library.Videos[id]
if !ok {
a.Templates.ExecuteTemplate(w, "index.html", &struct {
Playing *media.Video
Playlist media.Playlist
}{
Playing: &media.Video{ID: ""},
Playlist: a.Library.Playlist(),
})
return
}
w.Header().Set("Content-Type", "text/html; charset=utf-8")
a.Templates.ExecuteTemplate(w, "index.html", &struct {
Playing *media.Video
Playlist media.Playlist
}{
Playing: playing,
Playlist: a.Library.Playlist(),
})
}
func (a *App) videoHandler(w http.ResponseWriter, r *http.Request) {
vars := mux.Vars(r)
id := vars["id"]
log.Printf("/v/%s", id)
m, ok := a.Library.Videos[id]
if !ok {
return
}
title := m.Title
disposition := "attachment; filename=\"" + title + ".mp4\""
w.Header().Set("Content-Disposition", disposition)
w.Header().Set("Content-Type", "video/mp4")
path := a.Config.LibraryPath + "/" + id + ".mp4"
http.ServeFile(w, r, path)
}
func (a *App) thumbHandler(w http.ResponseWriter, r *http.Request) {
vars := mux.Vars(r)
id := vars["id"]
log.Printf("/t/%s", id)
m, ok := a.Library.Videos[id]
if !ok {
return
}
w.Header().Set("Cache-Control", "public, max-age=7776000")
if m.ThumbType == "" {
w.Header().Set("Content-Type", "image/jpeg")
http.ServeFile(w, r, "static/defaulticon.jpg")
} else {
w.Header().Set("Content-Type", m.ThumbType)
w.Write(m.Thumb)
}
}
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