linx-server/display.go

65 lines
1.4 KiB
Go

package main
import (
"net/http"
"os"
"path"
"strings"
"time"
"bitbucket.org/taruti/mimemagic"
"github.com/dustin/go-humanize"
"github.com/flosch/pongo2"
"github.com/zenazn/goji/web"
)
func fileDisplayHandler(c web.C, w http.ResponseWriter, r *http.Request) {
fileName := c.URLParams["name"]
filePath := path.Join(Config.filesDir, fileName)
fileInfo, err := os.Stat(filePath)
if !fileExistsAndNotExpired(fileName) {
notFoundHandler(c, w, r)
return
}
expiry, _ := metadataGetExpiry(fileName)
var expiryHuman string
if expiry != 0 {
expiryHuman = humanize.RelTime(time.Now(), time.Unix(expiry, 0), "", "")
}
sizeHuman := humanize.Bytes(uint64(fileInfo.Size()))
file, _ := os.Open(filePath)
header := make([]byte, 512)
file.Read(header)
file.Close()
mimetype := mimemagic.Match("", header)
var tpl *pongo2.Template
if strings.HasPrefix(mimetype, "image/") {
tpl = Templates["display/image.html"]
} else if strings.HasPrefix(mimetype, "video/") {
tpl = Templates["display/video.html"]
} else if strings.HasPrefix(mimetype, "audio/") {
tpl = Templates["display/audio.html"]
} else if mimetype == "application/pdf" {
tpl = Templates["display/pdf.html"]
} else {
tpl = Templates["display/file.html"]
}
err = tpl.ExecuteWriter(pongo2.Context{
"mime": mimetype,
"filename": fileName,
"size": sizeHuman,
"expiry": expiryHuman,
}, w)
if err != nil {
oopsHandler(c, w, r)
}
}