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add support for data transfer bandwidth limits

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with total limit or separate settings for uploads and downloads and
overrides based on the client's IP address.

Limits can be reset using the REST API

Signed-off-by: Nicola Murino <nicola.murino@gmail.com>
This commit is contained in:
Nicola Murino
2022-01-30 11:42:36 +01:00
parent aca71bff7a
commit 1df1225eed
55 changed files with 3573 additions and 643 deletions
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16
webdavd/file.go
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@@ -142,6 +142,11 @@ func (f *webDavFile) Read(p []byte) (n int, err error) {
if !f.Connection.User.HasPerm(dataprovider.PermDownload, path.Dir(f.GetVirtualPath())) {
return 0, f.Connection.GetPermissionDeniedError()
}
transferQuota := f.BaseTransfer.GetTransferQuota()
if !transferQuota.HasDownloadSpace() {
f.Connection.Log(logger.LevelInfo, "denying file read due to quota limits")
return 0, f.Connection.GetReadQuotaExceededError()
}
if ok, policy := f.Connection.User.IsFileAllowed(f.GetVirtualPath()); !ok {
f.Connection.Log(logger.LevelWarn, "reading file %#v is not allowed", f.GetVirtualPath())
@@ -180,7 +185,9 @@ func (f *webDavFile) Read(p []byte) (n int, err error) {
n, err = f.reader.Read(p)
atomic.AddInt64(&f.BytesSent, int64(n))
if err == nil {
err = f.CheckRead()
}
if err != nil && err != io.EOF {
f.TransferError(err)
return
@@ -200,8 +207,8 @@ func (f *webDavFile) Write(p []byte) (n int, err error) {
n, err = f.writer.Write(p)
atomic.AddInt64(&f.BytesReceived, int64(n))
if f.MaxWriteSize > 0 && err == nil && atomic.LoadInt64(&f.BytesReceived) > f.MaxWriteSize {
err = common.ErrQuotaExceeded
if err == nil {
err = f.CheckWrite()
}
if err != nil {
f.TransferError(err)
@@ -260,6 +267,9 @@ func (f *webDavFile) Seek(offset int64, whence int) (int64, error) {
startByte := int64(0)
atomic.StoreInt64(&f.BytesReceived, 0)
atomic.StoreInt64(&f.BytesSent, 0)
go func(ulSize, dlSize int64, user dataprovider.User) {
dataprovider.UpdateUserTransferQuota(&user, ulSize, dlSize, false) //nolint:errcheck
}(atomic.LoadInt64(&f.BytesReceived), atomic.LoadInt64(&f.BytesSent), f.Connection.User)
switch whence {
case io.SeekStart: