implement the upload backend

1 files changed, 83 insertions, 0 deletions

diff --git a/upload.go b/upload.go
new file mode 100644
index 0000000..d7bbd20
--- /dev/null
+++ b/upload.go
@@ -0,0 +1,83 @@
+package main
+
+import (
+	"bytes"
+	"fmt"
+	"net/http"
+	"os"
+	"path"
+	// "path/filepath"
+	"io/ioutil"
+
+	"github.com/dhowden/tag"
+	"muhq.space/go/wrms/llog"
+)
+
+type UploadBackend struct {
+	uploadDir string
+}
+
+func NewUploadBackend(uploadDir string) *UploadBackend {
+	b := UploadBackend{uploadDir: uploadDir}
+
+	dirInfo, err := os.Stat(uploadDir)
+
+	if os.IsNotExist(err) {
+		os.Mkdir(uploadDir, 0750)
+	} else if !dirInfo.IsDir() {
+		llog.Fatal("upload directory %s exists and is not a directory", uploadDir)
+	}
+
+	b.setupUploadRoute()
+
+	return &b
+}
+
+func (b *UploadBackend) upload(w http.ResponseWriter, r *http.Request) {
+	data, err := ioutil.ReadAll(r.Body)
+	if err != nil {
+		llog.Warning("Failed to read request body: %s", string(data))
+		http.Error(w, "Failed to read request body", http.StatusInternalServerError)
+		return
+	}
+
+	fileName := r.URL.Query().Get("song")
+
+	f, err := os.Create(path.Join(b.uploadDir, fileName))
+	if err != nil {
+		llog.Fatal("Failed to create uploaded song on disk")
+	}
+
+	_, err = f.Write(data)
+	if err != nil {
+		llog.Fatal("Failed to write uploaded song on disk")
+	}
+
+	f.Close()
+
+	var song Song
+	dataReader := bytes.NewReader(data)
+	m, err := tag.ReadFrom(dataReader)
+	if err != nil {
+		llog.Warning("error reading tags from %s: %v", fileName, err)
+		song = NewSong(fileName, "Unknown", "upload", fileName)
+	} else {
+		song = NewSong(m.Title(), m.Artist(), "upload", fileName)
+	}
+
+	wrms.AddSong(song)
+	wrms.Broadcast(Event{"add", []Song{song}})
+	fmt.Fprintf(w, "Added uploaded song %s", string(fileName))
+}
+
+func (b *UploadBackend) setupUploadRoute() {
+	http.HandleFunc("/upload", b.upload)
+}
+
+func (b *UploadBackend) Play(song *Song, player *Player) {
+	player.PlayUri("file://" + path.Join(b.uploadDir, song.Uri))
+}
+
+func (b *UploadBackend) Search(keyword string) []Song {
+	return nil
+}