721 lines
19 KiB
Go
721 lines
19 KiB
Go
// Package app manages main application server.
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package app
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import (
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"fmt"
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"html/template"
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"io"
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"io/ioutil"
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"net"
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"net/http"
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"os"
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"path"
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"path/filepath"
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"sort"
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"strings"
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rice "github.com/GeertJohan/go.rice"
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"github.com/dustin/go-humanize"
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"github.com/fsnotify/fsnotify"
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"github.com/gorilla/handlers"
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"github.com/gorilla/mux"
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"github.com/renstrom/shortuuid"
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log "github.com/sirupsen/logrus"
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"github.com/wybiral/tube/importers"
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"github.com/wybiral/tube/media"
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"github.com/wybiral/tube/utils"
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)
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//go:generate rice embed-go
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// App represents main application.
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type App struct {
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Config *Config
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Library *media.Library
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Store Store
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Watcher *fsnotify.Watcher
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Templates *templateStore
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Feed []byte
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Listener net.Listener
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Router *mux.Router
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}
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// NewApp returns a new instance of App from Config.
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func NewApp(cfg *Config) (*App, error) {
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if cfg == nil {
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cfg = DefaultConfig()
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}
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a := &App{
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Config: cfg,
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}
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// Setup Library
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a.Library = media.NewLibrary()
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// Setup Store
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store, err := NewBitcaskStore(cfg.Server.StorePath)
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if err != nil {
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err := fmt.Errorf("error opening store %s: %w", cfg.Server.StorePath, err)
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return nil, err
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}
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a.Store = store
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// Setup Watcher
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w, err := fsnotify.NewWatcher()
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if err != nil {
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return nil, err
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}
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a.Watcher = w
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// Setup Listener
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ln, err := newListener(cfg.Server)
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if err != nil {
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return nil, err
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}
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a.Listener = ln
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// Templates
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box := rice.MustFindBox("../templates")
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a.Templates = newTemplateStore("base")
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templateFuncs := map[string]interface{}{
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"bytes": func(size int64) string { return humanize.Bytes(uint64(size)) },
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}
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indexTemplate := template.New("index").Funcs(templateFuncs)
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template.Must(indexTemplate.Parse(box.MustString("index.html")))
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template.Must(indexTemplate.Parse(box.MustString("base.html")))
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a.Templates.Add("index", indexTemplate)
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uploadTemplate := template.New("upload").Funcs(templateFuncs)
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template.Must(uploadTemplate.Parse(box.MustString("upload.html")))
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template.Must(uploadTemplate.Parse(box.MustString("base.html")))
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a.Templates.Add("upload", uploadTemplate)
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importTemplate := template.New("import").Funcs(templateFuncs)
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template.Must(importTemplate.Parse(box.MustString("import.html")))
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template.Must(importTemplate.Parse(box.MustString("base.html")))
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a.Templates.Add("import", importTemplate)
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// Setup Router
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r := mux.NewRouter().StrictSlash(true)
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r.HandleFunc("/", a.indexHandler).Methods("GET", "OPTIONS")
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r.HandleFunc("/upload", a.uploadHandler).Methods("GET", "OPTIONS", "POST")
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r.HandleFunc("/import", a.importHandler).Methods("GET", "OPTIONS", "POST")
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r.HandleFunc("/v/{id}.mp4", a.videoHandler).Methods("GET")
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r.HandleFunc("/v/{prefix}/{id}.mp4", a.videoHandler).Methods("GET")
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r.HandleFunc("/t/{id}", a.thumbHandler).Methods("GET")
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r.HandleFunc("/t/{prefix}/{id}", a.thumbHandler).Methods("GET")
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r.HandleFunc("/v/{id}", a.pageHandler).Methods("GET")
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r.HandleFunc("/v/{prefix}/{id}", a.pageHandler).Methods("GET")
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r.HandleFunc("/feed.xml", a.rssHandler).Methods("GET")
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// Static file handler
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fsHandler := http.StripPrefix(
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"/static",
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http.FileServer(rice.MustFindBox("../static").HTTPBox()),
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)
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r.PathPrefix("/static/").Handler(fsHandler).Methods("GET")
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cors := handlers.CORS(
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handlers.AllowedHeaders([]string{
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"X-Requested-With",
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"Content-Type",
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"Authorization",
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}),
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handlers.AllowedMethods([]string{
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"GET",
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"POST",
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"PUT",
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"HEAD",
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"OPTIONS",
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}),
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handlers.AllowedOrigins([]string{"*"}),
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handlers.AllowCredentials(),
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)
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r.Use(cors)
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a.Router = r
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return a, nil
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}
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// Run imports the library and starts server.
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func (a *App) Run() error {
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for _, pc := range a.Config.Library {
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p := &media.Path{
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Path: pc.Path,
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Prefix: pc.Prefix,
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}
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err := a.Library.AddPath(p)
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if err != nil {
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return err
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}
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err = a.Library.Import(p)
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if err != nil {
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return err
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}
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a.Watcher.Add(p.Path)
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}
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if err := os.MkdirAll(a.Config.Server.UploadPath, 0755); err != nil {
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return fmt.Errorf(
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"error creating upload path %s: %w",
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a.Config.Server.UploadPath, err,
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)
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}
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buildFeed(a)
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go startWatcher(a)
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return http.Serve(a.Listener, a.Router)
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}
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func (a *App) render(name string, w http.ResponseWriter, ctx interface{}) {
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buf, err := a.Templates.Exec(name, ctx)
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if err != nil {
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http.Error(w, err.Error(), http.StatusInternalServerError)
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}
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_, err = buf.WriteTo(w)
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if err != nil {
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http.Error(w, err.Error(), http.StatusInternalServerError)
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}
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}
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// HTTP handler for /
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func (a *App) indexHandler(w http.ResponseWriter, r *http.Request) {
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log.Printf("/")
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pl := a.Library.Playlist()
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if len(pl) > 0 {
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http.Redirect(w, r, fmt.Sprintf("/v/%s?%s", pl[0].ID, r.URL.RawQuery), 302)
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} else {
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sort := strings.ToLower(r.URL.Query().Get("sort"))
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quality := strings.ToLower(r.URL.Query().Get("quality"))
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ctx := &struct {
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Sort string
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Quality string
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Playing *media.Video
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Playlist media.Playlist
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}{
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Sort: sort,
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Quality: quality,
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Playing: &media.Video{ID: ""},
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Playlist: a.Library.Playlist(),
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}
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a.render("index", w, ctx)
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}
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}
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// HTTP handler for /upload
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func (a *App) uploadHandler(w http.ResponseWriter, r *http.Request) {
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if r.Method == "GET" {
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ctx := map[string]interface{}{
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"MAX_UPLOAD_SIZE": a.Config.Server.MaxUploadSize,
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}
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a.render("upload", w, ctx)
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} else if r.Method == "POST" {
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r.ParseMultipartForm(a.Config.Server.MaxUploadSize)
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file, handler, err := r.FormFile("video_file")
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if err != nil {
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err := fmt.Errorf("error processing form: %w", err)
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log.Error(err)
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http.Error(w, err.Error(), http.StatusInternalServerError)
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return
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}
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defer file.Close()
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title := r.FormValue("video_title")
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description := r.FormValue("video_description")
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// TODO: Make collection user selectable from drop-down in Form
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// XXX: Assume we can put uploaded videos into the first collection (sorted) we find
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keys := make([]string, 0, len(a.Library.Paths))
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for k := range a.Library.Paths {
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keys = append(keys, k)
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}
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sort.Strings(keys)
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collection := keys[0]
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uf, err := ioutil.TempFile(
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a.Config.Server.UploadPath,
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fmt.Sprintf("tube-upload-*%s", filepath.Ext(handler.Filename)),
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)
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if err != nil {
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err := fmt.Errorf("error creating temporary file for uploading: %w", err)
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log.Error(err)
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http.Error(w, err.Error(), http.StatusInternalServerError)
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return
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}
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defer os.Remove(uf.Name())
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_, err = io.Copy(uf, file)
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if err != nil {
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err := fmt.Errorf("error writing file: %w", err)
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log.Error(err)
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http.Error(w, err.Error(), http.StatusInternalServerError)
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return
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}
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tf, err := ioutil.TempFile(
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a.Config.Server.UploadPath,
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fmt.Sprintf("tube-transcode-*.mp4"),
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)
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if err != nil {
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err := fmt.Errorf("error creating temporary file for transcoding: %w", err)
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log.Error(err)
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http.Error(w, err.Error(), http.StatusInternalServerError)
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return
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}
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vf := filepath.Join(
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a.Library.Paths[collection].Path,
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fmt.Sprintf("%s.mp4", shortuuid.New()),
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)
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thumbFn1 := fmt.Sprintf("%s.jpg", strings.TrimSuffix(tf.Name(), filepath.Ext(tf.Name())))
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thumbFn2 := fmt.Sprintf("%s.jpg", strings.TrimSuffix(vf, filepath.Ext(vf)))
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// TODO: Use a proper Job Queue and make this async
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if err := utils.RunCmd(
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a.Config.Transcoder.Timeout,
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"ffmpeg",
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"-y",
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"-i", uf.Name(),
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"-vcodec", "h264",
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"-acodec", "aac",
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"-strict", "-2",
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"-loglevel", "quiet",
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"-metadata", fmt.Sprintf("title=%s", title),
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"-metadata", fmt.Sprintf("comment=%s", description),
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tf.Name(),
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); err != nil {
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err := fmt.Errorf("error transcoding video: %w", err)
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log.Error(err)
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http.Error(w, err.Error(), http.StatusInternalServerError)
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return
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}
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if err := utils.RunCmd(
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a.Config.Thumbnailer.Timeout,
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"mt",
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"-b",
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"-s",
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"-n", "1",
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tf.Name(),
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); err != nil {
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err := fmt.Errorf("error generating thumbnail: %w", err)
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log.Error(err)
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http.Error(w, err.Error(), http.StatusInternalServerError)
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return
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}
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if err := os.Rename(thumbFn1, thumbFn2); err != nil {
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err := fmt.Errorf("error renaming generated thumbnail: %w", err)
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log.Error(err)
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http.Error(w, err.Error(), http.StatusInternalServerError)
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return
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}
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if err := os.Rename(tf.Name(), vf); err != nil {
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err := fmt.Errorf("error renaming transcoded video: %w", err)
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log.Error(err)
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http.Error(w, err.Error(), http.StatusInternalServerError)
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return
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}
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// TODO: Make this a background job
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// Resize for lower quality options
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for size, suffix := range a.Config.Transcoder.Sizes {
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log.
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WithField("size", size).
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WithField("vf", filepath.Base(vf)).
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Info("resizing video for lower quality playback")
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sf := fmt.Sprintf(
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"%s#%s.mp4",
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strings.TrimSuffix(vf, filepath.Ext(vf)),
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suffix,
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)
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if err := utils.RunCmd(
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a.Config.Transcoder.Timeout,
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"ffmpeg",
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"-y",
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"-i", vf,
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"-s", size,
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"-c:v", "libx264",
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"-c:a", "aac",
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"-crf", "18",
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"-strict", "-2",
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"-loglevel", "quiet",
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"-metadata", fmt.Sprintf("title=%s", title),
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"-metadata", fmt.Sprintf("comment=%s", description),
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sf,
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); err != nil {
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err := fmt.Errorf("error transcoding video: %w", err)
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log.Error(err)
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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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fmt.Fprintf(w, "Video successfully uploaded!")
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} else {
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http.Error(w, "Method Not Allowed", http.StatusMethodNotAllowed)
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}
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}
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// HTTP handler for /import
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func (a *App) importHandler(w http.ResponseWriter, r *http.Request) {
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if r.Method == "GET" {
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ctx := &struct{}{}
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a.render("import", w, ctx)
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} else if r.Method == "POST" {
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r.ParseMultipartForm(1024)
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url := r.FormValue("url")
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if url == "" {
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err := fmt.Errorf("error, no url supplied")
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log.Error(err)
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http.Error(w, err.Error(), http.StatusBadRequest)
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return
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}
|
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|
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// TODO: Make collection user selectable from drop-down in Form
|
|
// XXX: Assume we can put uploaded videos into the first collection (sorted) we find
|
|
keys := make([]string, 0, len(a.Library.Paths))
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for k := range a.Library.Paths {
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keys = append(keys, k)
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}
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sort.Strings(keys)
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collection := keys[0]
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videoImporter, err := importers.NewImporter(url)
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if err != nil {
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err := fmt.Errorf("error creating video importer for %s: %w", url, err)
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log.Error(err)
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http.Error(w, err.Error(), http.StatusInternalServerError)
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return
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}
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videoInfo, err := videoImporter.GetVideoInfo(url)
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if err != nil {
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err := fmt.Errorf("error retriving video info for %s: %w", url, err)
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log.Error(err)
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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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uf, err := ioutil.TempFile(
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a.Config.Server.UploadPath,
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fmt.Sprintf("tube-import-*.mp4"),
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)
|
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if err != nil {
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err := fmt.Errorf("error creating temporary file for importing: %w", err)
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log.Error(err)
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http.Error(w, err.Error(), http.StatusInternalServerError)
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return
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}
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defer os.Remove(uf.Name())
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|
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log.WithField("video_url", videoInfo.VideoURL).Info("requesting video size")
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|
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res, err := http.Head(videoInfo.VideoURL)
|
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if err != nil {
|
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err := fmt.Errorf("error getting size of video %w", err)
|
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log.Error(err)
|
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http.Error(w, err.Error(), http.StatusInternalServerError)
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return
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}
|
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contentLength := utils.SafeParseInt64(res.Header.Get("Content-Length"), -1)
|
|
if contentLength == -1 {
|
|
err := fmt.Errorf("error calculating size of video")
|
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log.WithField("contentLength", contentLength).Error(err)
|
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http.Error(w, err.Error(), http.StatusInternalServerError)
|
|
return
|
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}
|
|
if contentLength > a.Config.Server.MaxUploadSize {
|
|
err := fmt.Errorf(
|
|
"imported video would exceed maximum upload size of %s",
|
|
humanize.Bytes(uint64(a.Config.Server.MaxUploadSize)),
|
|
)
|
|
log.
|
|
WithField("contentLength", contentLength).
|
|
WithField("max_upload_size", a.Config.Server.MaxUploadSize).
|
|
Error(err)
|
|
http.Error(w, err.Error(), http.StatusInternalServerError)
|
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return
|
|
}
|
|
|
|
log.WithField("contentLength", contentLength).Info("downloading video")
|
|
|
|
if err := utils.Download(videoInfo.VideoURL, uf.Name()); err != nil {
|
|
err := fmt.Errorf("error downloading video %s: %w", url, err)
|
|
log.Error(err)
|
|
http.Error(w, err.Error(), http.StatusInternalServerError)
|
|
return
|
|
}
|
|
|
|
tf, err := ioutil.TempFile(
|
|
a.Config.Server.UploadPath,
|
|
fmt.Sprintf("tube-transcode-*.mp4"),
|
|
)
|
|
if err != nil {
|
|
err := fmt.Errorf("error creating temporary file for transcoding: %w", err)
|
|
log.Error(err)
|
|
http.Error(w, err.Error(), http.StatusInternalServerError)
|
|
return
|
|
}
|
|
|
|
vf := filepath.Join(
|
|
a.Library.Paths[collection].Path,
|
|
fmt.Sprintf("%s.mp4", shortuuid.New()),
|
|
)
|
|
thumbFn1 := fmt.Sprintf("%s.jpg", strings.TrimSuffix(tf.Name(), filepath.Ext(tf.Name())))
|
|
thumbFn2 := fmt.Sprintf("%s.jpg", strings.TrimSuffix(vf, filepath.Ext(vf)))
|
|
|
|
if err := utils.Download(videoInfo.ThumbnailURL, thumbFn1); err != nil {
|
|
err := fmt.Errorf("error downloading thumbnail: %w", err)
|
|
log.Error(err)
|
|
http.Error(w, err.Error(), http.StatusInternalServerError)
|
|
return
|
|
}
|
|
|
|
// TODO: Use a proper Job Queue and make this async
|
|
if err := utils.RunCmd(
|
|
a.Config.Transcoder.Timeout,
|
|
"ffmpeg",
|
|
"-y",
|
|
"-i", uf.Name(),
|
|
"-vcodec", "h264",
|
|
"-acodec", "aac",
|
|
"-strict", "-2",
|
|
"-loglevel", "quiet",
|
|
"-metadata", fmt.Sprintf("title=%s", videoInfo.Title),
|
|
"-metadata", fmt.Sprintf("comment=%s", videoInfo.Description),
|
|
tf.Name(),
|
|
); err != nil {
|
|
err := fmt.Errorf("error transcoding video: %w", err)
|
|
log.Error(err)
|
|
http.Error(w, err.Error(), http.StatusInternalServerError)
|
|
return
|
|
}
|
|
|
|
if err := os.Rename(thumbFn1, thumbFn2); err != nil {
|
|
err := fmt.Errorf("error renaming generated thumbnail: %w", err)
|
|
log.Error(err)
|
|
http.Error(w, err.Error(), http.StatusInternalServerError)
|
|
return
|
|
}
|
|
|
|
if err := os.Rename(tf.Name(), vf); err != nil {
|
|
err := fmt.Errorf("error renaming transcoded video: %w", err)
|
|
log.Error(err)
|
|
http.Error(w, err.Error(), http.StatusInternalServerError)
|
|
return
|
|
}
|
|
|
|
// TODO: Make this a background job
|
|
// Resize for lower quality options
|
|
for size, suffix := range a.Config.Transcoder.Sizes {
|
|
log.
|
|
WithField("size", size).
|
|
WithField("vf", filepath.Base(vf)).
|
|
Info("resizing video for lower quality playback")
|
|
sf := fmt.Sprintf(
|
|
"%s#%s.mp4",
|
|
strings.TrimSuffix(vf, filepath.Ext(vf)),
|
|
suffix,
|
|
)
|
|
|
|
if err := utils.RunCmd(
|
|
a.Config.Transcoder.Timeout,
|
|
"ffmpeg",
|
|
"-y",
|
|
"-i", vf,
|
|
"-s", size,
|
|
"-c:v", "libx264",
|
|
"-c:a", "aac",
|
|
"-crf", "18",
|
|
"-strict", "-2",
|
|
"-loglevel", "quiet",
|
|
"-metadata", fmt.Sprintf("title=%s", videoInfo.Title),
|
|
"-metadata", fmt.Sprintf("comment=%s", videoInfo.Description),
|
|
sf,
|
|
); err != nil {
|
|
err := fmt.Errorf("error transcoding video: %w", err)
|
|
log.Error(err)
|
|
http.Error(w, err.Error(), http.StatusInternalServerError)
|
|
return
|
|
}
|
|
}
|
|
|
|
fmt.Fprintf(w, "Video successfully imported!")
|
|
} else {
|
|
http.Error(w, "Method Not Allowed", http.StatusMethodNotAllowed)
|
|
}
|
|
}
|
|
|
|
// HTTP handler for /v/id
|
|
func (a *App) pageHandler(w http.ResponseWriter, r *http.Request) {
|
|
vars := mux.Vars(r)
|
|
id := vars["id"]
|
|
prefix, ok := vars["prefix"]
|
|
if ok {
|
|
id = path.Join(prefix, id)
|
|
}
|
|
log.Printf("/v/%s", id)
|
|
playing, ok := a.Library.Videos[id]
|
|
if !ok {
|
|
sort := strings.ToLower(r.URL.Query().Get("sort"))
|
|
quality := strings.ToLower(r.URL.Query().Get("quality"))
|
|
ctx := &struct {
|
|
Sort string
|
|
Quality string
|
|
Playing *media.Video
|
|
Playlist media.Playlist
|
|
}{
|
|
Sort: sort,
|
|
Quality: quality,
|
|
Playing: &media.Video{ID: ""},
|
|
Playlist: a.Library.Playlist(),
|
|
}
|
|
a.render("upload", w, ctx)
|
|
return
|
|
}
|
|
|
|
views, err := a.Store.GetViews(id)
|
|
if err != nil {
|
|
err := fmt.Errorf("error retrieving views for %s: %w", id, err)
|
|
log.Warn(err)
|
|
}
|
|
|
|
playing.Views = views
|
|
|
|
playlist := a.Library.Playlist()
|
|
|
|
// TODO: Optimize this? Bitcask has no concept of MultiGet / MGET
|
|
for _, video := range playlist {
|
|
views, err := a.Store.GetViews(video.ID)
|
|
if err != nil {
|
|
err := fmt.Errorf("error retrieving views for %s: %w", video.ID, err)
|
|
log.Warn(err)
|
|
}
|
|
video.Views = views
|
|
}
|
|
|
|
sort := strings.ToLower(r.URL.Query().Get("sort"))
|
|
switch sort {
|
|
case "views":
|
|
media.By(media.SortByViews).Sort(playlist)
|
|
case "", "timestamp":
|
|
media.By(media.SortByTimestamp).Sort(playlist)
|
|
default:
|
|
// By default the playlist is sorted by Timestamp
|
|
log.Warnf("invalid sort critiera: %s", sort)
|
|
}
|
|
|
|
quality := strings.ToLower(r.URL.Query().Get("quality"))
|
|
switch quality {
|
|
case "", "720p", "480p", "360p", "240p":
|
|
default:
|
|
log.WithField("quality", quality).Warn("invalid quality")
|
|
quality = ""
|
|
}
|
|
|
|
w.Header().Set("Content-Type", "text/html; charset=utf-8")
|
|
ctx := &struct {
|
|
Sort string
|
|
Quality string
|
|
Playing *media.Video
|
|
Playlist media.Playlist
|
|
}{
|
|
Sort: sort,
|
|
Quality: quality,
|
|
Playing: playing,
|
|
Playlist: playlist,
|
|
}
|
|
a.render("index", w, ctx)
|
|
}
|
|
|
|
// HTTP handler for /v/id.mp4
|
|
func (a *App) videoHandler(w http.ResponseWriter, r *http.Request) {
|
|
vars := mux.Vars(r)
|
|
id := vars["id"]
|
|
|
|
prefix, ok := vars["prefix"]
|
|
if ok {
|
|
id = path.Join(prefix, id)
|
|
}
|
|
|
|
log.Printf("/v/%s", id)
|
|
|
|
m, ok := a.Library.Videos[id]
|
|
if !ok {
|
|
return
|
|
}
|
|
|
|
var videoPath string
|
|
|
|
quality := strings.ToLower(r.URL.Query().Get("quality"))
|
|
switch quality {
|
|
case "720p", "480p", "360p", "240p":
|
|
videoPath = fmt.Sprintf(
|
|
"%s#%s.mp4",
|
|
strings.TrimSuffix(m.Path, filepath.Ext(m.Path)),
|
|
quality,
|
|
)
|
|
if !utils.FileExists(videoPath) {
|
|
log.
|
|
WithField("quality", quality).
|
|
WithField("videoPath", videoPath).
|
|
Warn("video with specified quality does not exist (defaulting to default quality)")
|
|
videoPath = m.Path
|
|
}
|
|
case "":
|
|
videoPath = m.Path
|
|
default:
|
|
log.WithField("quality", quality).Warn("invalid quality")
|
|
videoPath = m.Path
|
|
}
|
|
|
|
if err := a.Store.Migrate(prefix, id); err != nil {
|
|
err := fmt.Errorf("error migrating store data: %w", err)
|
|
log.Warn(err)
|
|
}
|
|
|
|
if err := a.Store.IncViews(id); err != nil {
|
|
err := fmt.Errorf("error updating view for %s: %w", id, err)
|
|
log.Warn(err)
|
|
}
|
|
|
|
title := m.Title
|
|
disposition := "attachment; filename=\"" + title + ".mp4\""
|
|
w.Header().Set("Content-Disposition", disposition)
|
|
w.Header().Set("Content-Type", "video/mp4")
|
|
http.ServeFile(w, r, videoPath)
|
|
}
|
|
|
|
// HTTP handler for /t/id
|
|
func (a *App) thumbHandler(w http.ResponseWriter, r *http.Request) {
|
|
vars := mux.Vars(r)
|
|
id := vars["id"]
|
|
prefix, ok := vars["prefix"]
|
|
if ok {
|
|
id = path.Join(prefix, 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")
|
|
w.Write(rice.MustFindBox("../static").MustBytes("defaulticon.jpg"))
|
|
} else {
|
|
w.Header().Set("Content-Type", m.ThumbType)
|
|
w.Write(m.Thumb)
|
|
}
|
|
}
|
|
|
|
// HTTP handler for /feed.xml
|
|
func (a *App) rssHandler(w http.ResponseWriter, r *http.Request) {
|
|
w.Header().Set("Cache-Control", "public, max-age=7776000")
|
|
w.Header().Set("Content-Type", "text/xml")
|
|
w.Write(a.Feed)
|
|
}
|