storj/pkg/storage/streams/size.go
Maximillian von Briesen 821d0b6f1d
Stream encryption (#302)
* begin adding encryption for remote pieces

* begin adding decryption

* add encryption key as arg to Put and Get

* move encryption/decryption to object store

* Add encryption key to object store constructor

* Add the erasure scheme to object store constructor

* Ensure decrypter is initialized with the stripe size used by encrypter

* Revert "Ensure decrypter is initialized with the stripe size used by encrypter"

This reverts commit 07272333f461606edfb43ad106cc152f37a3bd46.

* Revert "Add the erasure scheme to object store constructor"

This reverts commit ea5e793b536159d993b96e3db69a37c1656a193c.

* move encryption to stream store

* move decryption stuff to stream store

* revert changes in object store

* add encryptedBlockSize and close rangers on error during Get

* calculate padding sizes correctly

* encryptedBlockSize -> encryptionBlockSize

* pass encryption key and block size into stream store

* remove encryption key and block size from object store constructor

* move encrypter/decrypter initialization

* remove unnecessary cast

* Fix padding issue

* Fix linter

* add todos

* use random encryption key for data encryption. Store an encrypted copy of this key in segment metadata

* use different encryption key for each segment

* encrypt data in one step if it is small enough

* refactor and move encryption stuff

* fix errors related to nil slices passed to copy

* fix encrypter vs. decrypter bug

* put encryption stuff in eestream

* get captplanet test to pass

* fix linting errors

* add types for encryption keys/nonces and clean up

* fix tests

* more review changes

* add Cipher type for encryption stuff

* fix rs_test

* Simplify type casting of key and nonce

* Init starting nonce to the segment index

* don't copy derived key

* remove default encryption key; force user to explicitly set it

* move getSegmentPath to streams package

* dont require user to specify encryption key for captplanet

* rename GenericKey and GenericNonce to Key and Nonce

* review changes

* fix linting error

* Download uses the encryption type from metadata

* Store enc block size in metadata and use it for download
2018-09-26 09:32:23 -04:00

29 lines
593 B
Go

// Copyright (C) 2018 Storj Labs, Inc.
// See LICENSE for copying information.
package streams
import "io"
// SizeReader holds reader and size read so far
type SizeReader struct {
reader io.Reader
size int64
}
// NewSizeReader keeps track of how much bytes are read from the reader
func NewSizeReader(r io.Reader) *SizeReader {
return &SizeReader{reader: r}
}
func (r *SizeReader) Read(p []byte) (n int, err error) {
n, err = r.reader.Read(p)
r.size += int64(n)
return n, err
}
// Size returns the number of bytes read so far
func (r *SizeReader) Size() int64 {
return r.size
}