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author | Javier Peletier <jpeletier@users.noreply.github.com> | 2018-07-22 03:49:36 +0800 |
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committer | Anton Evangelatov <anton.evangelatov@gmail.com> | 2018-07-23 21:33:33 +0800 |
commit | 427316a7078e1876ad8db9d67550609c961e84f6 (patch) | |
tree | 382406ba5b2499076bb53e379aa4619df506d989 /swarm/storage/mru/timestampprovider.go | |
parent | 0647c4de7b1b4b2090807a6db0b7a8eafdfa097b (diff) | |
download | dexon-427316a7078e1876ad8db9d67550609c961e84f6.tar.gz dexon-427316a7078e1876ad8db9d67550609c961e84f6.tar.zst dexon-427316a7078e1876ad8db9d67550609c961e84f6.zip |
swarm/storage/mru: Client-side MRU signatures (#784)
* swarm/storage/mru: Add embedded publickey and remove ENS dep
This commit breaks swarm, swarm/api...
but tests in swarm/storage/mru pass
* swarm: Refactor swarm, swarm/api to mru changes, make tests pass
* swarm/storage/mru: Remove self from recv, remove test ens vldtr
* swarm/storage/mru: Remove redundant test, expose ResourceHash mthd
* swarm/storage/mru: Make HeaderGetter mandatory + godoc fixes
* swarm/storage: Remove validator prefix for metadata chunk
* swarm/storage/mru: Use Address instead of PublicKey
* swarm/storage/mru: Change index from name to metadata chunk addr
* swarm/storage/mru: Refactor swarm/api/... to MRU index changes
* swarm/storage/mru: Refactor cleanup
* swarm/storage/mru: Rebase cleanup
* swarm: Use constructor for GenericSigner MRU in swarm.go
* swarm/storage: Change to BMTHash for MRU hashing
* swarm/storage: Reduce loglevel on chunk validator logs
* swarm/storage/mru: Delint
* swarm: MRU Rebase cleanup
* swarm/storage/mru: client-side mru signatures
Rebase to PR #668 and fix all conflicts
* swarm/storage/mru: refactor and documentation
* swarm/resource/mru: error-checking tests for parseUpdate/newUpdateChunk
* swarm/storage/mru: Added resourcemetadata tests
* swarm/storage/mru: Added tests for UpdateRequest
* swarm/storage/mru: more test coverage for UpdateRequest and comments
* swarm/storage/mru: Avoid fake chunks in parseUpdate()
* swarm/storage/mru: Documented resource.go extensively
moved some functions where they make most sense
* swarm/storage/mru: increase test coverage for UpdateRequest and
variable name changes throughout to increase consistency
* swarm/storage/mru: moved default timestamp to NewCreateRequest-
* swarm/storage/mru: lookup refactor
* swarm/storage/mru: added comments and renamed raw flag to rawmru
* swarm/storage/mru: fix receiver typo
* swarm/storage/mru: refactored update chunk new/create
* swarm/storage/mru: refactored signature digest to avoid malleability
* swarm/storage/mru: optimize update data serialization
* swarm/storage/mru: refactor and cleanup
* swarm/storage/mru: add timestamp struct and serialization
* swarm/storage/mru: fix lint error and mark some old code for deletion
* swarm/storage/mru: remove unnecessary variable
* swarm/storage/mru: Added more comments throughout
* swarm/storage/mru: Refactored metadata chunk layout + extensive error...
* swarm/storage/mru: refactor cli parser
Changed resource info output to JSON
* swarm/storage/mru: refactor serialization for extensibility
refactored error messages to NewErrorf
* swarm/storage/mru: Moved Signature to resource_sign.
Check Sign errors in server tests
* swarm/storage/mru: Remove isSafeName() checks
* swarm/storage/mru: scrubbed off all references to "block" for time
* swarm/storage/mru: removed superfluous isSynced() call.
* swarm/storage/mru: remove isMultihash() and ToSafeName functions
* swarm/storage/mru: various fixes and comments
* swarm/storage/mru: decoupled cli for independent create/update
* Made resource name optional
* Removed unused LookupPrevious
* swarm/storage/mru: Decoupled resource create / update & refactor
* swarm/storage/mru: Fixed some comments as per issues raised in PR #743
* swarm/storage/mru: Cosmetic changes as per #743 comments
* swarm/storage/mru: refct request encoder/decoder > marshal/unmarshal
* swarm/storage/mru: Cosmetic changes as per review in #748
* swarm/storage/mru: removed timestamp proof placeholder
* swarm/storage/mru: cosmetic/doc/fixes changes as per comments in #704
* swarm/storage/mru: removed unnecessary check in Handler.update
* swarm/storage/mru: Implemented Marshaler/Unmarshaler iface in Request
* swarm/storage/mru: Fixed linter error
* swarm/storage/mru: removed redundant address in signature digest
* swarm/storage/mru: fixed bug: LookupLatestVersionInPeriod not working
* swarm/storage/mru: Unfold Request creation API for create or update+create
set common time source for mru package
* swarm/api/http: fix HandleGetResource error variable shadowed
when requesting a resource that does not exist
* swarm/storage/mru: Add simple check to detect duplicate updates
* swarm/storage/mru: moved Multihash() to the right place.
* cmd/swarm: remove unneeded clientaccountmanager.go
* swarm/storage/mru: Changed some comments as per reviews in #784
* swarm/storage/mru: Made SignedResourceUpdate.GetDigest() public
* swarm/storage/mru: cosmetic changes as per comments in #784
* cmd/swarm: Inverted --multihash flag default
* swarm/storage/mru: removed Verify from SignedResourceUpdate.fromChunk
* swarm/storage/mru: Moved validation code out of serializer
Cosmetic / comment changes
* swarm/storage/mru: Added unit tests for UpdateLookup
* swarm/storage/mru: Increased coverage of metadata serialization
* swarm/storage/mru: Increased test coverage of updateHeader serializers
* swarm/storage/mru: Add resourceUpdate serializer test
Diffstat (limited to 'swarm/storage/mru/timestampprovider.go')
-rw-r--r-- | swarm/storage/mru/timestampprovider.go | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/swarm/storage/mru/timestampprovider.go b/swarm/storage/mru/timestampprovider.go new file mode 100644 index 000000000..f483491aa --- /dev/null +++ b/swarm/storage/mru/timestampprovider.go @@ -0,0 +1,71 @@ +// Copyright 2018 The go-ethereum Authors +// This file is part of the go-ethereum library. +// +// The go-ethereum library is free software: you can redistribute it and/or modify +// it under the terms of the GNU Lesser General Public License as published by +// the Free Software Foundation, either version 3 of the License, or +// (at your option) any later version. +// +// The go-ethereum library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU Lesser General Public License for more details. +// +// You should have received a copy of the GNU Lesser General Public License +// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>. + +package mru + +import ( + "encoding/binary" + "time" +) + +// TimestampProvider sets the time source of the mru package +var TimestampProvider timestampProvider = NewDefaultTimestampProvider() + +// Encodes a point in time as a Unix epoch +type Timestamp struct { + Time uint64 // Unix epoch timestamp, in seconds +} + +// 8 bytes uint64 Time +const timestampLength = 8 + +// timestampProvider interface describes a source of timestamp information +type timestampProvider interface { + Now() Timestamp // returns the current timestamp information +} + +// binaryGet populates the timestamp structure from the given byte slice +func (t *Timestamp) binaryGet(data []byte) error { + if len(data) != timestampLength { + return NewError(ErrCorruptData, "timestamp data has the wrong size") + } + t.Time = binary.LittleEndian.Uint64(data[:8]) + return nil +} + +// binaryPut Serializes a Timestamp to a byte slice +func (t *Timestamp) binaryPut(data []byte) error { + if len(data) != timestampLength { + return NewError(ErrCorruptData, "timestamp data has the wrong size") + } + binary.LittleEndian.PutUint64(data, t.Time) + return nil +} + +type DefaultTimestampProvider struct { +} + +// NewDefaultTimestampProvider creates a system clock based timestamp provider +func NewDefaultTimestampProvider() *DefaultTimestampProvider { + return &DefaultTimestampProvider{} +} + +// Now returns the current time according to this provider +func (dtp *DefaultTimestampProvider) Now() Timestamp { + return Timestamp{ + Time: uint64(time.Now().Unix()), + } +} |