Commit Graph

286 Commits

Author SHA1 Message Date
Alex Sharov
331dcd45eb
Store receipts separately - one record per tx (#1271)
* squash

* add --database flag to integration

* clean

* split to 2 buckets

* split to 2 buckets

* split to 2 buckets

* split to 2 buckets

* split to 2 buckets

* save progress

* save progress

* improve test

* improve test

* save progress

* change app logic

* change app logic

* return err from rawdb package

* don't clean automatically

* don't clean automatically

* clean

* clean

* clean

* don't rely on `make clean`

* improve cbor code

* clean

* clean

* clean

* fix tests

* rebase master

* stop on error: headers stage

* make TxDb walk and multiwalk safe

* Fix panics

Co-authored-by: Alexey Akhunov <akhounov@gmail.com>
2020-10-25 08:38:55 +00:00
Alex Sharov
77a4b3305d
rawdb to return errors: part 1 (#1286)
* ReadBlockByNumber and ReadChainConfig return error

* Let's make rawdb package to return error. But by small steps.
High-level methods need to move first:

ReadBlockByNumber
ReadChainConfig
ReadBlockByHash
ReadHeaderByHash
WriteChainConfig
WriteDatabaseVersion
WriteBlock
DeleteTd
WriteTd
ReadTd
2020-10-24 07:57:09 +01:00
ledgerwatch
b747ab5324
[WIP] CallTraces index (#1157)
* Initial commit for CallTraces index

* Fix compilation

* fix lint, add comment

* Fix integration

* Add Close function to ethdb.Cursor, fix some compile errors

* Try to stop cursor leak in Get

* Fix compile errors in RPC daemon

* Fix compile errors

* fixing another way

* Some fixes

* More fixes

* More fixes

* More fixes

* Fixes to core/state

* Fix lint

* Fix lint

* Fixes

* Stage caching for call trace stage

* Add mem stats

* Try to stop the leak

* Turn off debug

* Chunks for 10k blocks

* Print

* Revert "Print"

This reverts commit 5ffada4828d61e00e5dad1ca12c98258dfbbad00.

* Revert "Chunks for 10k blocks"

This reverts commit cfb9d498e782e5583d41c30abf0e2137da27383e.

* Trying to fix the leak

* Don't compute receipts in re-tracing

* Not compose block

* Print speed, fix receipts, bigger caches

* Fix lint

* Utilise changeset info

* Counters

* Use NoReceipts and ReadOnly

* ReadOnly is incompatible with caching

* Skip test leaking transactions

* Fix block test

* Change disable message for call-traces stage

* Use block option for call traces integration

* Fix retracing due to incarnation
2020-10-12 09:39:04 +01:00
Alex Sharov
88a099702b
rawdb.ReadCanonicalHash to return err (#1204)
* read_canonical_hash_return_err

* hack hugeFreelist

* fix tests
2020-10-10 07:05:56 +01:00
Igor Mandrigin
70f6ec3b49 post-rebase fixes 2020-10-06 14:12:09 +02:00
Osoro Bironga
2d81899bd9 accounts/abi: improve documentation and names (#21540)
* accounts: abi/bid/backends; cleaned doc errors, camelCase refactors and anonymous variable assignments

* acounts/abi/bind: doc errors, anonymous parameter assignments

* accounts/abi: doc edits, camelCase refactors

* accounts/abi/bind: review fix

* reverted name changes

* name revert

Co-authored-by: Osoro Bironga <osoro@doctaroo.com>
2020-10-06 14:12:09 +02:00
Marius van der Wijden
f6c97d1df1 tests/fuzzers/abi: add fuzzer for fuzzing package accounts/abi (#21217)
* tests/fuzzers/abi: added abi fuzzer

* accounts/abi: fixed issues found by fuzzing

* tests/fuzzers/abi: update fuzzers, added repro test

* tests/fuzzers/abi: renamed abi_fuzzer to abifuzzer

* tests/fuzzers/abi: updated abi fuzzer

* tests/fuzzers/abi: updated abi fuzzer

* accounts/abi: minor style fix

* go.mod: added go-fuzz dependency

* tests/fuzzers/abi: updated abi fuzzer

* tests/fuzzers/abi: make linter happy

* tests/fuzzers/abi: make linter happy

* tests/fuzzers/abi: comment out false positives
# Conflicts:
#	go.mod
#	go.sum
2020-10-06 14:12:09 +02:00
Marius van der Wijden
73fa175bd1 accounts/abi/bind/backends: reverted some stylistic changes (#21535)
# Conflicts:
#	accounts/abi/bind/backends/simulated.go
2020-10-06 14:12:09 +02:00
ledgerwatch
4be6174a15
Add comment about ContractAddress in receipts, followed by some simplification (#1137)
* Add comment about receipts

* Panic on error

* Ignore errors in the simulated backend

* Fix lint
2020-09-26 13:38:10 +01:00
Igor Mandrigin
49d84c33b9 linters2 2020-09-11 18:14:24 +02:00
Igor Mandrigin
eb226f9de3 linter1 2020-09-11 18:12:39 +02:00
Igor Mandrigin
fca3684095 fix tests (simulated_backend) 2020-09-11 18:02:55 +02:00
Igor Mandrigin
17d0b20a94 compile fixes 2020-09-11 16:53:34 +02:00
Osoro Bironga
a953a7f330 accounts: abi/bid/backends; cleaned doc errors, camelCase refactors and anonymous variable assignments (#21514)
Co-authored-by: Osoro Bironga <osoro@doctaroo.com>
# Conflicts:
#	accounts/abi/bind/backends/simulated.go
#	accounts/abi/bind/backends/simulated_test.go
2020-09-11 16:26:59 +02:00
Fuyang Deng
e71b99ae9a accounts/abi: fix a bug in getTypeSize method (#21501)
* accounts/abi: fix a bug in getTypeSize method

e.g. for "Tuple[2]" type, the element of the array is a tuple type and the size of the tuple may not be 32.

* accounts/abi: add unit test of getTypeSize method
2020-09-11 16:05:31 +02:00
Marius van der Wijden
2765d0b939 accounts/abi/bind/backends: Disallow AdjustTime for non-empty blocks (#21334)
* accounts/abi/bind/backends: Disallow timeshift for non-empty blocks

* accounts/abi/bind/backends: added tests for adjust time

* accounts/abi/bind/simulated: added comments, fixed test for AdjustTime

* accounts/abi/bind/backends: updated comment
# Conflicts:
#	accounts/abi/bind/backends/simulated.go
2020-09-11 15:59:35 +02:00
Alex Sharov
8c9a55bb21
[To test on HDD] Write changesets to tx instead of mutation (#978)
* use mutation over tx

* clear

* add .CommitAndBegin() method

* multip put 2

* right sorting

* write non-random things to tx

* write non-random things to tx

* disable multi put 2

* clean

* clean

* remove multiput2

* clean

* clean

* clean

* clean

* clean

* add receipts
2020-08-29 08:32:51 +01:00
ledgerwatch
8728e54a72
Another step in migrating tests to staged sync (#970)
* Log in GetAsOf

* Default plain state

* trace

* More test fixes

* Fix lint

* Fix

* Fix lint

* Fix lint

* Fix lint

* Fix lint

* Fix for events

* Repair events

* Fix lint

* Fix lint

* Change back to InsertChain
2020-08-24 18:00:40 +01:00
Igor Mandrigin
8600616c3d geth 1.9.18 post-rebase fixups 2020-08-08 17:33:35 +02:00
gary rong
9797148f6f accounts, internal: fix funding check when estimating gas (#21346)
* internal, accounts: fix funding check when estimate gas

* accounts, internal: address comments
# Conflicts:
#	accounts/abi/bind/backends/simulated.go
2020-08-07 13:48:47 +02:00
Natsu Kagami
7034679fd7 accounts/abi: make GetType public again (#21157) 2020-08-07 11:13:20 +02:00
ledgerwatch
cf799157cc
Jumpdest skip optimisation (#851)
* Jumpdest skipping optimisation

* Fix formatting

* Move skipAnalysis into vmConfig, introduce tracing ability

* Improve detection logging

* Added release instructions

* Fix lint
2020-08-01 17:56:57 +01:00
Evgeny Danilenko
5ead20e288
close tx_cache and peer.handle goruotines properly (#748)
* close goruotines

* fix using defer

* close pm managers a bit later

* fmt

* finalizer for in-mem db

* after cr

* revert finalizer

Co-authored-by: alex.sharov <AskAlexSharov@gmail.com>
2020-07-16 14:27:24 +01:00
ledgerwatch
665b1d88b9
Speed up GenerateChain by using intermediate hashes (#736)
* GenerateChain to support intermediate hashes

* Fix formatting

* Changeset stats

* Fix formatting
2020-07-10 22:37:34 +01:00
ledgerwatch
887fc4f99c
GenerateChain without using TrieDbState (#726)
* Different chain generation

* More fixes

* Fix TestSideLogRebirth

* Fix the rest of core tests

* Fix accounts/abi/bind

* Fix compile errors for cmd/pics

* Fix consensus/clique tests

* More fixes

* Fix core/state tests

* Fix eth tests

* Fix eth/downloader tests

* Fix more tests

* Fix compile errors

* Some more fixes

* Save

* Exists

* Fix last tests

* Clean up

* Fix formatting

* Fix linter

* Fix formatting

* Fix linter

* Fix lint

* Fix lint

* Fix lint

* Fix lint

* Fix lint

* Fix lint

* Fix lint

* Fix lint
2020-07-09 07:15:28 +01:00
Igor Mandrigin
93f6c4c01a post-rebase fixups 2020-06-15 19:38:54 +03:00
Marius van der Wijden
2d592517b9 internal/ethapi: return revert reason for eth_call (#21083)
* internal/ethapi: return revert reason for eth_call

* internal/ethapi: moved revert reason logic to doCall

* accounts/abi/bind/backends: added revert reason logic to simulated backend

* internal/ethapi: fixed linting error

* internal/ethapi: check if require reason can be unpacked

* internal/ethapi: better error logic

* internal/ethapi: simplify logic

* internal/ethapi: return vmError()

* internal/ethapi: move handling of revert out of docall

* graphql: removed revert logic until spec change

* rpc: internal/ethapi: added custom error types

* graphql: use returndata instead of return

Return() checks if there is an error. If an error is found, we return nil.
For most use cases it can be beneficial to return the output even if there
was an error. This code should be changed anyway once the spec supports
error reasons in graphql responses

* accounts/abi/bind/backends: added tests for revert reason

* internal/ethapi: add errorCode to revert error

* internal/ethapi: add errorCode of 3 to revertError

* internal/ethapi: unified estimateGasErrors, simplified logic

* internal/ethapi: unified handling of errors in DoEstimateGas

* rpc: print error data field

* accounts/abi/bind/backends: unify simulatedBackend and RPC

* internal/ethapi: added binary data to revertError data

* internal/ethapi: refactored unpacking logic into newRevertError

* accounts/abi/bind/backends: fix EstimateGas

* accounts, console, internal, rpc: minor error interface cleanups

* Revert "accounts, console, internal, rpc: minor error interface cleanups"

This reverts commit 2d3ef53c5304e429a04983210a417c1f4e0dafb7.

* re-apply the good parts of 2d3ef53c53

* rpc: add test for returning server error data from client

Co-authored-by: rjl493456442 <garyrong0905@gmail.com>
Co-authored-by: Péter Szilágyi <peterke@gmail.com>
Co-authored-by: Felix Lange <fjl@twurst.com>
# Conflicts:
#	accounts/abi/bind/backends/simulated.go
#	accounts/abi/bind/backends/simulated_test.go
2020-06-15 19:38:13 +03:00
Martin Michlmayr
732a20d468 all: fix typos in comments (#21118)
# Conflicts:
#	accounts/abi/bind/backends/simulated.go
#	cmd/puppeth/module_dashboard.go
#	core/blockchain_test.go
#	core/rawdb/chain_iterator.go
#	core/state/snapshot/difflayer.go
#	core/state/snapshot/iterator.go
#	core/state/snapshot/iterator_fast.go
#	core/state/snapshot/snapshot.go
#	core/state/snapshot/wipe.go
#	core/tx_pool.go
#	les/clientpool.go
#	les/peer.go
#	mobile/doc.go
#	trie/committer.go
#	trie/database.go
2020-06-15 19:38:13 +03:00
Boqin Qin
defe185e77 accounts: add blockByNumberNoLock() to avoid double-lock (#20983)
* abi/bind/backends: testcase for double-lock

* accounts: add blockByNumberNoLock to avoid double-lock

* backend/simulated: use stateroot, not blockhash for retrieveing state

Co-authored-by: Martin Holst Swende <martin@swende.se>
# Conflicts:
#	accounts/abi/bind/backends/simulated.go
2020-06-15 19:38:12 +03:00
Marius van der Wijden
88e3533dd5 accounts/abi: simplify reflection logic (#21058)
* accounts/abi: simplified reflection logic

* accounts/abi: simplified reflection logic

* accounts/abi: removed unpack

* accounts/abi: removed comments

* accounts/abi: removed uneccessary complications

* accounts/abi: minor changes in error messages

* accounts/abi: removed unnused code

* accounts/abi: fixed indexed argument unpacking

* accounts/abi: removed superfluous test cases

This commit removes two test cases. The first one is trivially invalid as we have the same
test cases as passing in packing_test.go L375. The second one passes now,
because we don't need the mapArgNamesToStructFields in unpack_atomic anymore.
Checking for purely underscored arg names generally should not be something we do
as the abi/contract is generally out of the control of the user.

* accounts/abi: removed comments, debug println

* accounts/abi: added commented out code

* accounts/abi: addressed comments

* accounts/abi: remove unnecessary dst.CanSet check

* accounts/abi: added dst.CanSet checks
# Conflicts:
#	accounts/abi/reflect.go
2020-06-15 19:38:12 +03:00
Evgeny Danilenko
41ee460a27
optimize codeBitmap (#626)
* optimize codeBitmap

* add lru

* remove custom lru

* jumpDests as explocit parameter

* lint

* lint

* linters

* default jumpDestsCache

* remove common.rand
2020-06-06 21:49:06 +01:00
Evgeny Danilenko
199ede36a2
Prevent slice make and copy in Pushes (#625)
* prevent slice make and copy in Pushes

* do not pad if the same length

* after CR

* linters

* linters

* linters
2020-06-05 19:46:34 +03:00
Alex Sharov
f0bc2b2146
Run tests on lmdb and badger (#624)
* lmdb tests

* trigger ci

* fix tests

* disable parallelism

* disable parallelism

* cleanup resources

* cleanup resources

* reduce concurency

* try run tests on bolt

* try run tests on bolt

* fix downloader test

* run bolt tests

* rely on interface instead of exact instance

* Rename AbstractKV to KV

* don't use separator for badger

* don't initialize badger cursor - because it not used here

* fix linter

* try reduce badger compactors

* compat with master

* try lmdb

* try lmdb

* try lmdb

* reduce badger's MaxTableSize, reduce badger's minGoMaxProc for inMem option

* allow to close closed db

* release

* release

* ideal batch size for badger

* ideal batch size for badger
2020-06-05 10:25:33 +01:00
Andrew Ashikhmin
33c28f7fac
[GC] uint256 rather than big.Int in Transaction (#614)
* uint256 in rlp

* uint256 rather than big.Int in Transation

* linters

* more linters

* still linters

* Reduce garbage in writeUint256

* Experiment with GC in writeByteArray
2020-06-04 08:43:08 +01:00
Alex Sharov
ff1cde5259
simulated backend: replace .MemCopy by .NewBatch+.Commit (#613)
* simulated backend - replace .MemCopy by .NewBatch and native transactions
close database which createtd inside simulated backend
2020-06-04 11:59:16 +07:00
ledgerwatch
dba3363b52
Fix RestAPI for tx_retrace and make it work for local boltdb (#584)
* Not hash, keep the files

* Calculate savings

* Fix

* Fix

* Fix

* Fix

* RestAPI to support local boltdb

* Not error on read-only db

* Changes so far

* Continue

* More

* Roll back a bit

* Restore newline

* something compiles

* Fix restapi

* Fix block number

* Fix reads

* Use plain writer

* Maps for storage reads and writes

* Clean up coersions

* Fix accounts/abi/bind

* Fix tests

* More fixes

* more fixes

* More fixes

* Fixes

* Fixed core/state

* Fixed eth tests

* Move code, fix linter

* Fix test

* Fix linter

* Fix linter

* Fix linter, badger_db to support AbstractKV

* Increase IdealBatchSize for badger

* Fix linter

* Fix linter
2020-05-27 17:24:34 +01:00
Andrew Ashikhmin
5bbdb6a4b9
Use uint256 for account balance (#580)
* Use uint256 for account balance

* linter
2020-05-26 17:53:50 +01:00
Andrew Ashikhmin
b16e560529
Use uint256.Int rather than common.Hash for storage values to reduce memory allocation in opSload & opSstore (#575)
* Produce less garbage in GetState

* Still playing with mem allocation in GetCommittedState

* Pass key by pointer in GetState as well

* linter

* Avoid a memory allocation in opSload

* Use uint256.Int rather than common.Hash for storage values to reduce memory allocation in opSload & opSstore

* linter

* linters

* small clean up
2020-05-25 12:12:25 +01:00
Andrew Ashikhmin
df28575420
Use pointers to hashes in Get(Commited)State to reduce memory allocation (#573)
* Produce less garbage in GetState

* Still playing with mem allocation in GetCommittedState

* Pass key by pointer in GetState as well

* linter

* Avoid a memory allocation in opSload
2020-05-24 18:43:54 +02:00
Igor Mandrigin
0dae3ade0d post-rebase fixups 2020-05-20 15:26:22 +03:00
Marius van der Wijden
c9fb0f9a3f accounts/abi: allow overloaded argument names (#21060)
* accounts/abi: allow overloaded argument names

In solidity it is possible to create the following contract:
```
contract Overloader {
    struct F { uint _f; uint __f; uint f; }
    function f(F memory f) public {}
}
```
This however resulted in a panic in the abi package.

* accounts/abi fixed error handling
2020-05-20 15:26:22 +03:00
Marius van der Wijden
fc91ce52eb accounts/abi: accounts/abi/bind: Move topics to abi package (#21057)
* accounts/abi/bind: added test cases for waitDeployed

* accounts/abi/bind: added test case for boundContract

* accounts/abi/bind: removed unnecessary resolve methods

* accounts/abi: moved topics from /bind to /abi

* accounts/abi/bind: cleaned up format... functions

* accounts/abi: improved log message

* accounts/abi: added type tests

* accounts/abi/bind: remove superfluous template methods
# Conflicts:
#	accounts/abi/bind/bind.go
#	accounts/abi/topics.go
#	accounts/abi/topics_test.go
2020-05-20 15:26:22 +03:00
Martin Holst Swende
f66c118cad cmd, core, eth: background transaction indexing (#20302)
* cmd, core, eth: init tx lookup in background

* core/rawdb: tiny log fixes to make it clearer what's happening

* core, eth: fix rebase errors

* core/rawdb: make reindexing less generic, but more optimal

* rlp: implement rlp list iterator

* core/rawdb: new implementation of tx indexing/unindex using generic tx iterator and hashing rlp-data

* core/rawdb, cmd/utils: fix review concerns

* cmd/utils: fix merge issue

* core/rawdb: add some log formatting polishes

Co-authored-by: rjl493456442 <garyrong0905@gmail.com>
Co-authored-by: Péter Szilágyi <peterke@gmail.com>
# Conflicts:
#	accounts/abi/bind/backends/simulated.go
#	cmd/geth/main.go
#	cmd/geth/usage.go
#	cmd/utils/flags.go
#	consensus/clique/snapshot_test.go
#	core/bench_test.go
#	core/block_validator_test.go
#	core/blockchain.go
#	core/blockchain_test.go
#	core/chain_makers_test.go
#	core/dao_test.go
#	core/rawdb/accessors_indexes.go
#	core/rawdb/schema.go
#	eth/config.go
#	eth/helper_test.go
#	eth/sync.go
#	light/odr_test.go
#	light/trie_test.go
#	light/txpool_test.go
#	miner/worker_test.go
#	tests/block_test_util.go
2020-05-20 15:26:22 +03:00
gary rong
5f7d454115 accounts/abi/bind/backend, internal/ethapi: recap gas limit with balance (#21043)
* accounts/abi/bind/backend, internal/ethapi: recap gas limit with balance

* accounts, internal: address comment and fix lint

* accounts, internal: extend log message

* tiny nits to format hexutil.Big and nil properly

Co-authored-by: Péter Szilágyi <peterke@gmail.com>
# Conflicts:
#	accounts/abi/bind/backends/simulated.go
2020-05-20 15:26:22 +03:00
Marius van der Wijden
a222f5f6cb accounts/abi/bind: add void if no return args specified (#21002)
* accounts/abi/bind: add void if no return args specified

Currently the java generator generates invalid input on pure/view functions
that have no return type. e.g. `function f(uint u) view public {}`
This is not a problem in practice as people rarely ever write functions like this.

* accounts/abi/bind: use elseif instead of nested if
2020-05-20 15:26:22 +03:00
Marius van der Wijden
ffc0f9e85b account/abi: remove superfluous type checking (#21022)
* accounts/abi: added getType func to Type struct

* accounts/abi: fixed tuple unpack

* accounts/abi: removed type.Type

* accounts/abi: added comment

* accounts/abi: removed unused types

* accounts/abi: removed superfluous declarations

* accounts/abi: typo
# Conflicts:
#	accounts/abi/numbers.go
2020-05-20 15:26:22 +03:00
Igor Mandrigin
46f9df7821 accounts/abi: move U256Bytes to common/math (#21020)
# Conflicts:
#	accounts/abi/abi_test.go
#	accounts/abi/numbers.go
#	signer/core/signed_data.go
2020-05-20 15:26:22 +03:00
Marius van der Wijden
7441eac281 accounts/abi: removed Kind from Type struct (#21009)
* accounts/abi: removed Kind from Type struct

* accounts/abi: removed unused code
2020-05-20 15:26:22 +03:00
Marius van der Wijden
3c2b9248ed accounts/abi: added abi test cases, minor bug fixes (#20903)
* accounts/abi: added documentation

* accounts/abi: reduced usage of arguments.LengthNonIndexed

* accounts/abi: simplified reflection logic

* accounts/abi: moved testjson data into global declaration

* accounts/abi: removed duplicate test cases

* accounts/abi: reworked abi tests

* accounts/abi: added more tests for abi packing

* accounts/abi/bind: refactored base tests

* accounts/abi: run pack tests as subtests

* accounts/abi: removed duplicate tests

* accounts/abi: removed unnused arguments.LengthNonIndexed

Due to refactors to the code, we do not need the arguments.LengthNonIndexed function anymore.
You can still get the length by calling len(arguments.NonIndexed())

* accounts/abi: added type test

* accounts/abi: modified unpack test to pack test

* accounts/abi: length check on arrayTy

* accounts/abi: test invalid abi

* accounts/abi: fixed rebase error

* accounts/abi: fixed rebase errors

* accounts/abi: removed unused definition

* accounts/abi: merged packing/unpacking tests

* accounts/abi: fixed [][][32]bytes encoding

* accounts/abi: added tuple test cases

* accounts/abi: renamed getMockLog -> newMockLog

* accounts/abi: removed duplicate test

* accounts/abi: bools -> booleans
# Conflicts:
#	accounts/abi/unpack_test.go
2020-05-20 15:26:22 +03:00
gary rong
ad9e4241b1 all: seperate consensus error and evm internal error (#20830)
* all: seperate consensus error and evm internal error

There are actually two types of error will be returned when
a tranaction/message call is executed: (a) consensus error
(b) evm internal error. The former should be converted to
a consensus issue, e.g. The sender doesn't enough asset to
purchase the gas it specifies. The latter is allowed since
evm itself is a blackbox and internal error is allowed to happen.

This PR emphasizes the difference by introducing a executionResult
structure. The evm error is embedded inside. So if any error
returned, it indicates consensus issue happens.

And also this PR improve the `EstimateGas` API to return the concrete
revert reason if the transaction always fails

* all: polish

* accounts/abi/bind/backends: add tests

* accounts/abi/bind/backends, internal: cleanup error message

* all: address comments

* core: fix lint

* accounts, core, eth, internal: address comments

* accounts, internal: resolve revert reason if possible

* accounts, internal: address comments
# Conflicts:
#	accounts/abi/abi.go
#	accounts/abi/bind/backends/simulated.go
#	cmd/geth/retesteth.go
#	core/state/snapshot/difflayer_test.go
#	core/state/snapshot/disklayer_test.go
#	core/state/snapshot/iterator_test.go
#	core/state_processor.go
#	core/state_transition.go
#	core/vm/evm.go
#	core/vm/instructions.go
#	core/vm/jump_table.go
#	eth/api_tracer.go
#	internal/ethapi/api.go
#	les/odr_test.go
#	light/odr_test.go
#	tests/state_test_util.go
2020-05-20 15:26:22 +03:00