func SetGridFile(sf StructFile) {
var (
dbFile *mgo.GridFile
err error
)
dbFile, err = gridFS.Create(sf.Name)
check(err)
io.Copy(dbFile, sf.File)
check(err)
err = dbFile.Close()
check(err)
}
func GridFSFileUpload(w http.ResponseWriter, rew *http.Request) {
if auth := HttpAuthenticate(w, rew); auth {
if rew.Method == "POST" {
fmt.Println("METHOD WAS POST")
GridFS := MongoDB.GridFS("fs")
var file *mgo.GridFile
var filename string
rew.ParseMultipartForm(500000)
formfileheaderarr := rew.MultipartForm.File["file"]
formfileheader := formfileheaderarr[0]
formfile, err := formfileheader.Open()
//formfile, formfileheader, err := rew.FormFile("file")
if err == nil {
if rew.FormValue("filename") == "" {
filename = formfileheader.Filename
} else {
filename = rew.FormValue("filename")
}
fmt.Println(filename)
file, err = GridFS.Create(filename)
if err == nil {
_, err = io.Copy(file, formfile)
if err == nil {
file.SetContentType(formfileheader.Header.Get("Content-Type"))
err = file.Close()
if err == nil {
Template(TemplateFileUploaded).Execute(w, "Grid/"+filename)
}
}
}
}
if err != nil {
io.WriteString(w, "Error occured: "+err.Error())
}
//GridFS.Create(
//io.Copy()
//rew.FormFile("file").
} else if rew.Method == "GET" {
}
}
}
func (s *Storage) Put(filename string, contentType string, body io.Reader, attachment *tenpu.Attachment) (err error) {
var f *mgo.GridFile
s.database.DatabaseDo(func(db *mgo.Database) {
f, err = db.GridFS("fs").Create(filename)
defer f.Close()
if err != nil {
panic(err)
}
if attachment.Id != "" {
f.SetId(bson.ObjectIdHex(attachment.Id))
}
f.SetContentType(contentType)
_, err = io.Copy(f, body)
})
if err == io.ErrUnexpectedEOF {
attId := f.Id().(bson.ObjectId)
s.Delete(attId.Hex())
return
}
if attachment.Id == "" {
attachment.Id = f.Id().(bson.ObjectId).Hex()
attachment.ContentLength = f.Size()
attachment.ContentType = f.ContentType()
attachment.Filename = f.Name()
attachment.MD5 = f.MD5()
if attachment.IsImage() {
s.database.DatabaseDo(func(db *mgo.Database) {
f, err := db.GridFS("fs").OpenId(bson.ObjectIdHex(attachment.Id))
if err == nil {
config, _, err := image.DecodeConfig(f)
f.Close()
if err == nil {
attachment.Width = config.Width
attachment.Height = config.Height
}
}
})
}
}
return
}
func (s *Storage) Put(filename string, contentType string, body io.Reader, attachment *tenpu.Attachment) (err error) {
var f *mgo.GridFile
s.database.DatabaseDo(func(db *mgo.Database) {
f, err = db.GridFS("fs").Create(filename)
defer f.Close()
if err != nil {
panic(err)
}
f.SetContentType(contentType)
io.Copy(f, body)
})
attachment.Id = f.Id().(bson.ObjectId).Hex()
attachment.ContentLength = f.Size()
attachment.ContentType = f.ContentType()
attachment.Filename = f.Name()
attachment.MD5 = f.MD5()
return
}
func (s *mongodbStorage) Copy(localName, remoteName string, toRemote bool, checksum, moduleType string) (stat *contester_proto.FileStat, err error) {
ec := tools.ErrorContext("mongodb.Copy")
if toRemote {
stat, err = tools.StatFile(localName, true)
if err != nil {
err = ec.NewError(err, "local.CalculateChecksum")
}
// If file doesn't exist then stat == nil.
if err != nil || stat == nil {
return
}
if checksum != "" && *stat.Checksum != checksum {
return nil, ec.NewError(fmt.Errorf("Checksum mismatch, local %s != %s", stat.Checksum, checksum))
}
checksum = *stat.Checksum
}
var local *os.File
if toRemote {
local, err = os.Open(localName)
} else {
local, err = os.Create(localName)
}
if err != nil {
return nil, ec.NewError(err, "local.Open")
}
defer local.Close()
var remote *mgo.GridFile
if toRemote {
// Remove all files with the same remoteName.
if err = s.GridFS.Remove(remoteName); err != nil {
return nil, ec.NewError(err, "remote.Remove")
}
remote, err = s.GridFS.Create(remoteName)
} else {
remote, err = s.GridFS.Open(remoteName)
}
if err != nil {
return nil, ec.NewError(err, "remote.Open")
}
defer remote.Close()
var source io.ReadCloser
if toRemote {
source = local
} else {
source = remote
var meta fileMetadata
if err = remote.GetMeta(&meta); err != nil {
return nil, ec.NewError(err, "remote.GetMeta")
}
if meta.CompressionType == "ZLIB" {
source, err = zlib.NewReader(source)
if err != nil {
return nil, ec.NewError(err, "zlib.NewReader")
}
}
}
var destination io.WriteCloser
if toRemote {
destination = zlib.NewWriter(remote)
} else {
destination = local
}
size, err := io.Copy(destination, source)
if err != nil {
return nil, ec.NewError(err, "io.Copy")
}
if toRemote {
var meta fileMetadata
meta.OriginalSize = uint64(size)
meta.CompressionType = "ZLIB"
meta.Checksum = *stat.Checksum
meta.ModuleType = moduleType
remote.SetMeta(meta)
}
if err = destination.Close(); err != nil {
return nil, ec.NewError(err, "destination.Close")
}
if err = source.Close(); err != nil {
return nil, ec.NewError(err, "source.Close")
}
if !toRemote {
stat, err = tools.StatFile(localName, true)
if err != nil {
return nil, ec.NewError(err, "StatFile")
}
}
return stat, nil
}
