* added ws support and auth

* fixed lint

* Remove blockHeight arg from FeedHeaderPoW

* Revert "Remove blockHeight arg from FeedHeaderPoW"

This reverts commit 9bf92921db11cd4e13386fcee29f30241d070fc6.

* Move PayloadMessage & ForkChoiceMessage to package engineapi

* RequestList instead of newPayloadCh & forkChoiceCh

* Introduce request status

* Send reply only when request status is New

* Move BeaconRequestList to HeaderDownload

* Don't SetFetching when PoS (Fetching means handling newBlockHashes)

* Merge Syncing & Synced into DataWasMissing

* Introduce SyncStatus

* onlyNew arg in WaitForRequest

* Move waitingForBeaconChain into RequestList

* Interrupt instead of skipCycleHack

* Introduce timeout for PoS headers

* Split downloadMissingPoSHeaders

* Move StartPoSDownloader into HeaderDownload

* Move Stopping interrupt to StartPoSDownloader

* Move stopping PayloadStatus back to HeadersPOS

* cleanUpPoSDownload

* Post-merge fix

* TestBogusForkchoice

* TestPoSDownloader

* requestStatus in attemptPoSDownload

* Broadcast in SetStatus

* Cosmetics

* attemptPoSDownload -> schedulePoSDownload

* Demote some logs to Trace

* Separate handover timing

* Update

* Corrected handover time calculation

* Not use compression when aggregate

* Update to latest erigon-lib

* Update to erigon-lib main

* Update

* Disable reproducible builds

* Restore github actions

* Restore github actions

* Revert "linter to support go 1.18 (#3739)"

This reverts commit 1fd434d3.

Co-authored-by: Alexey Sharp <alexeysharp@Alexeys-iMac.local>

Previously `txCtx` is not updated for every tx, which
leads to wrong tracing results.

Co-authored-by: can <can@canx.me>

* More Merge logging

* Even more logging

* Marshall incoming payload json

* Fix json formatting

* Revert json marshalling

* Some extra logs

* fixed JWT

* jwt.hex

* ops

* fixed forkid for mergeBlock

* ops

* ops again

* Adding contract code for event logs subscription

* Saving changes

* gofmt'd files

* Setting up devnet test tool for log subscription testing

* Fixed lint errors

* Changes to debug case

* fixed linting

* Committing debugging changes

* Finalised contract tx creation and mining

* Fixed lint errors

* Made base fee upper limit a constant

* save

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* a

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* Fix typo

* fix typos

* Handle corner case when unwinding to geneis

* No-op ForkChoice

* Expose port 8551 (authenticated Engine API)

* Expose eth API on the same ports as engine API

log.Warn/Error uses "err" key to log errors in most places.
This renames "error" to "err" in some places to adhere to this convention.

* added stateOverride type

* solved import cycle

* refactoring

* imported wrong package

* fixed Call arguments

* typo

* override for traceCall

* jwt

* fuuuuture

* added auth

* merge

* merge

* Update jwt to the latest version

* ops

* comments

* cleanup

* bad

* gut

* maybe

* mod sum

Co-authored-by: yperbasis <andrey.ashikhmin@gmail.com>

* PrevRandao Renaming

* lint

* Auto detect latest block for optimal use of plain state and state cache

* Fix lint

* Fix test

Co-authored-by: Alex Sharp <alexsharp@Alexs-MacBook-Pro.local>

* Bump MaxPendingPayloads

* UnknownPayload error

* Improve ExchangeTransitionConfigurationV1 comment

* Extract MakeEmptyHeader

* Move MakeEmptyHeader to chain_makers

* Start with empty block as pending payload

* Only build payloads with the right parent hash

* Double check parent hash in SpawnMiningCreateBlockStage

* Simpler error formatting

* ReadHeadBlockHash instead of ReadHeadHeaderHash

* Avoid rebuilding already built blocks

* getPayload should stop the build process

* Tweaking stageLoopIsBusy

* Don't update pending payload after engine_getPayload

* updated tests

* using rpc.Timestamp

* added Timestamp type

* Optimise eth_getStorageAt for current state

* Fix

Co-authored-by: Alex Sharp <alexsharp@Alexs-MacBook-Pro.local>

* rename from Datadir to DataDir (functions and public vars)
* rename dataDir to datadir (local variables)

* done

* removed sleep

* f

* errors.Is(err, io.EOF) instead of err == io.EOF

Co-authored-by: yperbasis <andrey.ashikhmin@gmail.com>

Co-authored-by: Alex Sharp <alexsharp@Alexs-MacBook-Pro.local>

* Simplify TerminalBlockHash & TerminalBlockNumber

* Simplify FeedHeaderPoS

* More accurate comment

* Relax TerminalBlockHash check

* Extract the sleep hack into stageLoopIsBusy

* Several short naps instead of a single longish sleep

* Fix coinbase in stage_mining_exec

* More orthodox loop

* typo in comment

* more rpc emed flags

* more rpc emed flags

* more rpc emed flags

* initial

* binary search through blocks

* snapshot

* returning highest block

* oldest block is now 0

* multiple test written for  getBlockByTimeStamp

* retrieved picked block time stamp

* added into erigon_api

* returning pointer

* reverting c37b99b2

* deleted print

* proper rpc block response

* fixing test

* returning lowest block

* lint

* typo

* fixed test

* returning lowest-1

* skip while loop for times too big or small

* added to readme

* using sort.Search