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pre-upload: execute the hook just before opening the target file

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This commit is contained in:
Nicola Murino 2021-05-31 22:40:47 +02:00
parent c1239fbf59
commit 969c992bfd
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GPG key ID: 2F1FB59433D5A8CB
3 changed files with 11 additions and 10 deletions
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2
docs/custom-actions.md
View file

@ -61,7 +61,7 @@ If the `hook` defines an HTTP URL then this URL will be invoked as HTTP POST. Th
- `endpoint`, included for S3, SFTP and Azure backend if configured. For Azure this is the SAS URL, if configured, otherwise the endpoint
- `status`, integer. Status for `upload`, `download` and `ssh_cmd` actions. 0 means a generic error occurred. 1 means no error, 2 means quota exceeded error
- `protocol`, string. Possible values are `SSH`, `SFTP`, `SCP`, `FTP`, `DAV`, `HTTP`
- `open_flags`, integer, File open flags, can be non-zero for `pre-upload` action. If `file_size` is greater than zero and `file_size&512 == 0` the target file will not be truncated
- `open_flags`, integer. File open flags, can be non-zero for `pre-upload` action. If `file_size` is greater than zero and `file_size&512 == 0` the target file will not be truncated
The HTTP hook will use the global configuration for HTTP clients and will respect the retry configurations.

8
ftpd/handler.go
View file

@ -388,10 +388,6 @@ func (c *Connection) handleFTPUploadToExistingFile(fs vfs.Fs, flags int, resolve
c.Log(logger.LevelInfo, "denying file write due to quota limits")
return nil, common.ErrQuotaExceeded
}
if err := common.ExecutePreAction(&c.User, common.OperationPreUpload, resolvedPath, requestPath, c.GetProtocol(), fileSize, flags); err != nil {
c.Log(logger.LevelDebug, "upload for file %#v denied by pre action: %v", requestPath, err)
return nil, c.GetPermissionDeniedError()
}
minWriteOffset := int64(0)
// ftpserverlib sets:
// - os.O_WRONLY | os.O_APPEND for APPE and COMB
@ -406,6 +402,10 @@ func (c *Connection) handleFTPUploadToExistingFile(fs vfs.Fs, flags int, resolve
c.Log(logger.LevelDebug, "unable to get max write size: %v", err)
return nil, err
}
if err := common.ExecutePreAction(&c.User, common.OperationPreUpload, resolvedPath, requestPath, c.GetProtocol(), fileSize, flags); err != nil {
c.Log(logger.LevelDebug, "upload for file %#v denied by pre action: %v", requestPath, err)
return nil, c.GetPermissionDeniedError()
}
if common.Config.IsAtomicUploadEnabled() && fs.IsAtomicUploadSupported() {
err = fs.Rename(resolvedPath, filePath)

11
sftpd/handler.go
View file

@ -361,12 +361,8 @@ func (c *Connection) handleSFTPUploadToExistingFile(fs vfs.Fs, pflags sftp.FileO
c.Log(logger.LevelInfo, "denying file write due to quota limits")
return nil, sftp.ErrSSHFxFailure
}
osFlags := getOSOpenFlags(pflags)
if err := common.ExecutePreAction(&c.User, common.OperationPreUpload, resolvedPath, requestPath, c.GetProtocol(), fileSize, osFlags); err != nil {
c.Log(logger.LevelDebug, "upload for file %#v denied by pre action: %v", requestPath, err)
return nil, c.GetPermissionDeniedError()
}
osFlags := getOSOpenFlags(pflags)
minWriteOffset := int64(0)
isTruncate := osFlags&os.O_TRUNC != 0
// for upload resumes OpenSSH sets the APPEND flag while WinSCP does not set it,
@ -381,6 +377,11 @@ func (c *Connection) handleSFTPUploadToExistingFile(fs vfs.Fs, pflags sftp.FileO
return nil, err
}
if err := common.ExecutePreAction(&c.User, common.OperationPreUpload, resolvedPath, requestPath, c.GetProtocol(), fileSize, osFlags); err != nil {
c.Log(logger.LevelDebug, "upload for file %#v denied by pre action: %v", requestPath, err)
return nil, c.GetPermissionDeniedError()
}
if common.Config.IsAtomicUploadEnabled() && fs.IsAtomicUploadSupported() {
err = fs.Rename(resolvedPath, filePath)
if err != nil {