* Revert "Fix not downloading old blocks (#8642)"

This reverts commit d1934363.

* Make sure only one thread actually imports old blocks.

* Add some trace timers.

* Bring back pending hashes set.

* Separate locks so that queue can happen while we are importing.

* Address grumbles.

* Disallow unsigned transactions in case EIP-86 is disabled

* Add tests for verification

* Add disallow unsigned transactions test in machine

* Mark test helpers and test-only specs as cfg(test)

* Use test-probe to conditionally compile test helpers

* Remove test probe and directly use features tag

Niklas Adolfsson authored Jun 04, 2018 and Marek Kotewicz committed Jun 04, 2018

* Update `add_license` script

* run script

* add `remove duplicate lines script` and run it

* Revert changes `English spaces`

* strip whitespaces

* Revert `GPL` in files with `apache/mit license`

* don't append `gpl license` in files with other lic

* Don't append `gpl header` in files with other lic.

* re-ran script

* include c and cpp files too

* remove duplicate header

* rebase nit

David authored Jun 01, 2018 and Marek Kotewicz committed Jun 01, 2018

* Lots of println to figure out what eth_getBlockByNumber does/should do

* Remove debugging

* Print warnings when fetching pending blocks

When calling `eth_getBlockByNumber` with `pending`, we now print a deprecation warning and:

* if a pending block is found, use it to respond
* if no pending block is found, respond as if if was a request for `Latest`

Addresses issue #8703 (not sure if it's enough to close it tbh)

Nicolas Gotchac authored May 29, 2018 and ordian committed May 29, 2018

* Shutdown the Snapshot Service when shutting down the runner

* Rename `service` to `client_service`

* Fix tests

Wei Tang authored May 22, 2018 and Marek Kotewicz committed May 22, 2018

* Allow post-homestead forks to be specified in CommonParams

* Fix all json configs

* Fix test in json crate

* Fix test in ethcore

* Fix all chain configs to use tabs

Given we use tabs in .editorconfig and the majority of chain configs.
This change is done in Emacs using `mark-whole-buffer` and `indent-region`.

* Start dividing sync chain : first supplier method

* WIP - updated chain sync supplier

* Finish refactoring the Chain Sync Supplier

* Create Chain Sync Requester

* Add Propagator for Chain Sync

* Add the Chain Sync Handler

* Move tests from mod -> handler

* Move tests to propagator

* Refactor SyncRequester arguments

* Refactoring peer fork header handler

* Fix wrong highest block number in snapshot sync

* Small refactor...

* Resume warp-sync downloaded chunks

* Add comments

* Refactoring the previous chunks import

* Fix tests

* Address PR grumbles

* Fix not seeding current snapshot

* Address PR Grumbles

* Address PR grumble

* Retry failed CI job

* Update SnapshotService readiness check
Fix restoration locking issue for previous chunks restoration

* Fix tests

* Fix tests

* Fix test

* Early abort importing previous chunks

* PR Grumbles

* Update Gitlab CI config

* SyncState back to Waiting when Manifest peers disconnect

* Move fix

* Better fix

* Revert GitLab CI changes

* Fix Warning

* Refactor resuming snapshots

* Fix string construction

* Revert "Refactor resuming snapshots"

This reverts commit 75fd4b553a38e4a49dc5d6a878c70e830ff382eb.

* Update informant log

* Fix string construction

* Refactor resuming snapshots

* Fix informant

* PR Grumbles

* Update informant message : show chunks done

* PR Grumbles

* Fix

* Fix Warning

* PR Grumbles

* Add light client TODO item

* Move existing total-difficulty-based fork choice check to Engine

* Abstract total difficulty and block provider as Machine::BlockMetadata and Machine::BlockProvider

* Decouple "generate_metadata" logic to Engine

* Use fixed BlockMetadata and BlockProvider type for null and instantseal

In this way they can use total difficulty fork choice check

* Extend blockdetails with metadatas and finalized info

* Extra data update: mark_finalized and update_metadatas

* Check finalized block in Blockchain

* Fix a test constructor in verification mod

* Add total difficulty trait

* Fix type import

* Db migration to V13 with metadata column

* Address grumbles

* metadatas -> metadata

* Use generic type for update_metadata to avoid passing HashMap all around

* Remove metadata in blockdetails

* [WIP] Implement a generic metadata architecture

* [WIP] Metadata insertion logic in BlockChain

* typo: Value -> Self::Value

* [WIP] Temporarily remove Engine::is_new_best interface

So that we don't have too many type errors.

* [WIP] Fix more type errors

* [WIP] ExtendedHeader::PartialEq

* [WIP] Change metadata type Option<Vec<u8>> to Vec<u8>

* [WIP] Remove Metadata Error

* [WIP] Clean up error conversion

* [WIP] finalized -> is_finalized

* [WIP] Mark all fields in ExtrasInsert as pub

* [WIP] Remove unused import

* [WIP] Keep only local metadata info

* Mark metadata as optional

* [WIP] Revert metadata db change in BlockChain

* [WIP] Put finalization in unclosed state

* Use metadata interface in BlockDetail

* [WIP] Fix current build failures

* [WIP] Remove unused blockmetadata struct

* Remove DB migration info

* [WIP] Typo

* Use ExtendedHeader to implement fork choice check

* Implement is_new_best using Ancestry iterator

* Use expect instead of panic

* [WIP] Add ancestry Engine support via on_new_block

* Fix tests

* Emission of ancestry actions

* use_short_version should take account of metadata

* Engine::is_new_best -> Engine::fork_choice

* Use proper expect format as defined in #1026

* panic -> expect

* ancestry_header -> ancestry_with_metadata

* Boxed iterator -> &mut iterator

* Fix tests

* is_new_best -> primitive_fork_choice

* Document how fork_choice works

* Engine::fork_choice -> Engine::primitive_fork_choice

* comment: clarify types of finalization where Engine::primitive_fork_choice works

* Expose FinalizationInfo to Engine

* Fix tests due to merging

* Remove TotalDifficulty trait

* Do not pass FinalizationInfo to Engine

If there's finalized blocks in from route, choose the old branch without calling `Engine::fork_choice`.

* Fix compile

* Fix unused import

* Remove is_to_route_finalized

When no block reorg passes a finalized block, this variable is always false.

* Address format grumbles

* Fix docs: mark_finalized returns None if block hash is not found

`blockchain` mod does not yet have an Error type, so we still temporarily use None here.

* Fix inaccurate tree_route None expect description

* Fix #8468

* Use U256::max_value() instead

* Fix again

* Also change initial transaction gas

* Fix BlockReward contract "arithmetic operation overflow"

* Add docs on how execute_as_system works

* Fix typo

lihuafeng authored May 13, 2018 and Niklas Adolfsson committed May 12, 2018

* Some tiny modifications.
1. fix some typo in the comment.
2. sort the order of methods in 'impl state::Backend for StateDB`

* Remove the clone of code_cache, as it has been done in clone_basic.

* remove From::from. It seems not necessary.

* change mode: remove rust files' executable mode.

* 2 tiny modifications on snapshot.

Wei Tang authored May 10, 2018 and asynchronous rob committed May 09, 2018

* Remove unnecessary cloning in overwrite_with

* Remove into_iter

* rlp::decode returns Result

* Fix journaldb to handle rlp::decode Result

* Fix ethcore to work with rlp::decode returning Result

* Light client handles rlp::decode returning Result

* Fix tests in rlp_derive

* Fix tests

* Cleanup

* cleanup

* Allow panic rather than breaking out of iterator

* Let decoding failures when reading from disk blow up

* syntax

* Fix the trivial grumbles

* Fix failing tests

* Make Account::from_rlp return Result

* Syntx, sigh

* Temp-fix for decoding failures

* Header::decode returns Result

Handle new return type throughout the code base.

* Do not continue reading from the DB when a value could not be read

* Fix tests

* Handle header decoding in light_sync

* Handling header decoding errors

* Let the DecodeError bubble up unchanged

* Remove redundant error conversion

* Alter IO queueing.

* Don't require IoMessages to be Clone

* Ancient blocks imported via IoChannel.

* Get rid of private transactions io message.

* Get rid of deadlock and fix disconnected handler.

* Revert to old disconnect condition.

* Fix tests.

* Fix deadlock.

* Trace precompiled contracts when the transfer value is not zero

* Add tests for precompiled CALL tracing

* Use byzantium test machine for the new test

* Add notes in comments on why we don't trace all precompileds

* Use is_transferred instead of transferred

rlp::decode returns Result

Make a best effort to handle decoding errors gracefully throughout the code, using `expect` where the value is guaranteed to be valid (and in other places where it makes sense).

* Keep all enacted blocks notify in order

* Collect is unnecessary

* Update ChainNotify to use ChainRouteType

* Fix all ethcore fn defs

* Wrap the type within ChainRoute

* Fix private-tx and sync api

* Fix secret_store API

* Fix updater API

* Fix rpc api

* Fix informant api

* Eagerly cache enacted/retracted and remove contain_enacted/retracted

* Fix indent

* tests: should use full expr form for struct constructor

* Use into_enacted_retracted to further avoid copy

* typo: not a function

* rpc/tests: ChainRoute -> ChainRoute::new

Toralf Wittner authored May 05, 2018 and Marek Kotewicz committed May 05, 2018

* Consolidate crypto functionality in `ethcore-crypto`.

- Move `ecdh`/`ecies` modules to `ethkey`.
- Refactor `ethcore-crypto` to use file per module.
- Replace `subtle` with `ethcore_crypto::is_equal`.
- Add `aes_gcm` module to `ethcore-crypto`.

* Rename `aes::{encrypt,decrypt,decrypt_cbc}` ...

... to `aes::{encrypt_128_ctr,decrypt_128_ctr,decrypt_128_cbc}`.

Wei Tang authored May 05, 2018 and Marek Kotewicz committed May 05, 2018

* Add SHL, SHR, SAR opcodes

* Add have_bitwise_shifting schedule flag

* Add all EIP tests for SHL

* Add SHR implementation and tests

* Implement SAR and add tests

* Add eip145transition config param

* Change map_or to map_or_else when possible

Andrew Jones authored May 03, 2018 and Marek Kotewicz committed May 03, 2018

* Don't panic in import_block if invalid rlp

* Remove redundant type annotation

* Replace RLP header view usage with safe decoding

Using the view will panic with invalid RLP. Here we use Rlp decoding directly which will return a `Result<_, DecoderError>`. While this path currently should not have any invalid RLP - it makes it safer if ever called with invalid RLP from other code paths.

* Pass on storage keys even if it is not modified

* typo: account and storage query

`to_pod_diff` builds both `touched_addresses` merge and storage keys merge.

* Fix tests

* Use state query directly because of suicided accounts

* Fix a RefCell borrow issue

* Add tests for unmodified storage trace

* Address grumbles

* typo: remove unwanted empty line

* ensure_cached compiles with the original signature

Wei Tang authored May 02, 2018 and Marek Kotewicz committed May 02, 2018

* Fetch logs by hash in blockchain database

* Fix tests

* Add unit test for branch block logs fetching

* Add docs that blocks must already be sorted

* Handle branch block cases properly

* typo: empty -> is_empty

* Remove return_empty_if_none by using a closure

* Use BTreeSet to avoid sorting again

* Move is_canon to BlockChain

* typo: pass value by reference

* Use loop and wrap inside blocks to simplify the code

Borrowed from https://github.com/paritytech/parity/pull/8463#discussion_r183453326

* typo: missed a comment

* Directly return None if tracing is disabled

* Address gumbles: release read locks as fast as possible

* duration_ns: u64 -> duration: Duration

* format on millis {:.2} -> {}

* Return error if RLP size of transaction exceeds the limit

* Review comments fixed

* RLP check moved to verifier, corresponding pool test added

* Improve VM executor stack size estimation rules

* typo: docs add "(Debug build)" comment

* Fix an off by one typo and set minimal stack size

This avoids the case if `depth_threshold == max_depth`. Usually setting stack size to zero will just rebound it to
platform minimal stack size, but we set it here just in case.

* Use saturating_sub to avoid potential overflow

* engine: add block reward contract abi and helper client

* aura: add support for block reward contract

* engine: test block reward contract client

* aura: test block reward contract

* engine + aura: add missing docs

* engine: share SystemCall type alias

* aura: add transition for block reward contract

* engine: fix example block reward contract source link and bytecode

lihuafeng authored Apr 19, 2018 and Marek Kotewicz committed Apr 19, 2018

* Some tiny modifications.
1. fix some typo in the comment.
2. sort the order of methods in 'impl state::Backend for StateDB`

* Remove the clone of code_cache, as it has been done in clone_basic.

* remove From::from. It seems not necessary.

* WIP

* Convert Ethcore error to use error_chain

* Use error_chain for ImportError and BlockImportError

* Fix error pattern matches for error_chain in miner

* Implement explicit From for AccountsError

* Fix pattern matches for ErrorKinds

* Handle ethcore error_chain in light client

* Explicitly define Result type to avoid shadowing

* Fix remaining Error pattern matches

* Fix tab space formatting

* Helps if the tests compile

* Fix error chain matching after merge

* WIP

* Replace Rlp with UntrustedRlp in views, explicity unwrap with expect

First pass to get it to compile. Need to figure out whether to do this or to propogate Errors upstream, which would require many more changes to dependent code. If we do this way we are assuming that the views are always used in a context where the rlp is trusted to be valid e.g. when reading from our own DB. So need to fid out whether views are used with data received from an untrusted (e.g. extrernal peer).

* Remove original Rlp impl, rename UntrustedRlp -> Rlp

* Create rlp views with view! macro to record debug info

Views are assumed to be over valid rlp, so if there is a decoding error we record where the view was created in the first place and report it in the expect

* Use $crate in view! macro to avoid import, fix tests

* Expect valid rlp in decode functions for now

* Replace spaces with tabs in new file

* Add doc tests for creating views with macro

* Update rlp docs to reflect removing of UntrustedRlp

* Replace UntrustedRlp usages in private-tx merge