Evgenii Stratonikov
f92fd3c948
core: track NEP5 transfers
2020-03-05 18:22:40 +03:00
Evgenii Stratonikov
e8c4179a9c
core: track NEP5 balances
2020-03-05 18:22:19 +03:00
Roman Khimov
b273f3126a
Merge pull request #722 from nspcc-dev/feature/getblockheader
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rpc: implement getblockheader RPC
2020-03-05 17:18:54 +03:00
Roman Khimov
44c392450a
Merge pull request #721 from nspcc-dev/fix-panic-in-tcptransport-close
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network: add a nil check in (*TCPTransport).Close, prevent panic
2020-03-05 16:02:15 +03:00
Evgenii Stratonikov
3a510b9dad
core: allow transfer amount to be bytes
...
VM can produce both big.Int and []byte because they
are converted to each other on demand.
2020-03-05 15:18:38 +03:00
Anna Shaleva
42e2aff381
rpc: implement getblockheader RPC
...
closes #711
2020-03-05 14:47:45 +03:00
Roman Khimov
d03b2ef4a1
Merge pull request #706 from nspcc-dev/feature/transfer
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cli: implement transfer from multisig accounts
2020-03-05 12:28:01 +03:00
Roman Khimov
31948ee4a7
network: add a nil check in (*TCPTransport).Close, prevent panic
...
You have to try to trigger that, but in the event of server shutdown before it
actually started listening Close will easily panic like this:
2020-03-05T11:48:08.660+0300 INFO node started {"blockHeight": 6458, "headerHeight": 15605}
panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x28 pc=0x9d5f0a]
goroutine 1 [running]:
github.com/nspcc-dev/neo-go/pkg/network.(*TCPTransport).Close(0xc000fd7050)
/home/rik/dev/neo-go/pkg/network/tcp_transport.go:78 +0x2a
github.com/nspcc-dev/neo-go/pkg/network.(*Server).Shutdown(0xc000182280)
/home/rik/dev/neo-go/pkg/network/server.go:190 +0x189
github.com/nspcc-dev/neo-go/cli/server.startServer(0xc000200160, 0x0, 0x0)
/home/rik/dev/neo-go/cli/server/server.go:367 +0x79e
github.com/urfave/cli.HandleAction(0xb84860, 0xccf240, 0xc000200160, 0xc0001c4500, 0x0)
/home/rik/dev/neo-go/vendor/github.com/urfave/cli/app.go:490 +0xc8
github.com/urfave/cli.Command.Run(0xc9a160, 0x4, 0x0, 0x0, 0x0, 0x0, 0x0, 0xca407f, 0x10, 0x0, ...)
/home/rik/dev/neo-go/vendor/github.com/urfave/cli/command.go:210 +0x996
github.com/urfave/cli.(*App).Run(0xc0001d64e0, 0xc0000ca000, 0x3, 0x3, 0x0, 0x0)
/home/rik/dev/neo-go/vendor/github.com/urfave/cli/app.go:255 +0x6af
main.main()
/home/rik/dev/neo-go/cli/main.go:25 +0x505
2020-03-05 11:53:26 +03:00
Roman Khimov
5c781be08d
Merge pull request #718 from nspcc-dev/fix-invocation-tx-checks-and-fee
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Fix Invocation TX checks and fee
2020-03-05 11:51:51 +03:00
Roman Khimov
2032dd8e9f
Merge pull request #720 from nspcc-dev/fix-keycache-concurrent-access
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core: protect (*Blockchain).keyCache with a lock
2020-03-05 11:46:23 +03:00
Evgenii Stratonikov
85755a4628
smartcontract: implement (*ParameterContext).GetWitness()
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After all signatures were accumulated it should be possible
to extract Witness for the verifiable item.
2020-03-05 09:45:33 +03:00
Evgenii Stratonikov
cd487e3ad4
smartcontract: implement (*ParameterContext).AddSignature()
2020-03-05 09:45:11 +03:00
Evgenii Stratonikov
44901ca867
wallet: export contractParam
...
It is needed to be able to create Contracts
from the outside.
2020-03-05 09:43:14 +03:00
Evgenii Stratonikov
0d419d3899
smartcontract: implement ParameterContext
2020-03-05 09:43:14 +03:00
Evgenii Stratonikov
8819d4f970
vm: implement ParseMultisigContract()
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When creating witness for a multisig contract, it is
needed to extract the order of public keys from it.
2020-03-05 09:43:14 +03:00
Roman Khimov
9ac8001c7d
core: protect (*Blockchain).keyCache with a lock
...
Avoid failures like this:
fatal error: concurrent map writes
goroutine 103 [running]:
runtime.throw(0xca6fe3, 0x15)
/usr/lib64/go/1.12/src/runtime/panic.go:617 +0x72 fp=0xc000687988 sp=0xc000687958 pc=0x42d8d2
runtime.mapassign(0xb9d4a0, 0xc0000b1f80, 0xc000687a6c, 0x13bd940)
/usr/lib64/go/1.12/src/runtime/map.go:590 +0x5e3 fp=0xc000687a10 sp=0xc000687988 pc=0x40e2a3
github.com/nspcc-dev/neo-go/pkg/core.(*Blockchain).verifyHashAgainstScript(0xc0000f8000, 0x1300d1f5a3d348be, 0x78607089e4fe9fab, 0xc0a21e4f71, 0xc000d16070, 0x1e2b8881f8178e92, 0xd589cfa965287bb8, 0x24a4e4f292ebc797, 0xb90d3120d878e619, 0xc0001d01e0, ...)
/home/rik/dev/neo-go/pkg/core/blockchain.go:1866 +0x371 fp=0xc000687ad8 sp=0xc000687a10 pc=0x984ed1
github.com/nspcc-dev/neo-go/pkg/core.(*Blockchain).verifyHeaderWitnesses(0xc0000f8000, 0xc000d16000, 0xc00042d950, 0x1, 0xc00008a6c0)
/home/rik/dev/neo-go/pkg/core/blockchain.go:1914 +0x209 fp=0xc000687c90 sp=0xc000687ad8 pc=0x985999
github.com/nspcc-dev/neo-go/pkg/core.(*Blockchain).verifyHeader(0xc0000f8000, 0xc000d16000, 0xc00042d950, 0xf0ee0049d611101f, 0xf8967398a8f9351b)
/home/rik/dev/neo-go/pkg/core/blockchain.go:1254 +0x235 fp=0xc000687d70 sp=0xc000687c90 pc=0x97e4e5
github.com/nspcc-dev/neo-go/pkg/core.(*Blockchain).addHeaders(0xc0000f8000, 0x1, 0xc000d12000, 0x7d0, 0x7d0, 0x0, 0x1)
/home/rik/dev/neo-go/pkg/core/blockchain.go:369 +0x266 fp=0xc000687e68 sp=0xc000687d70 pc=0x973f46
github.com/nspcc-dev/neo-go/pkg/core.(*Blockchain).AddHeaders(0xc0000f8000, 0xc000d12000, 0x7d0, 0x7d0, 0x0, 0xc0003640c0)
/home/rik/dev/neo-go/pkg/core/blockchain.go:338 +0x51 fp=0xc000687eb0 sp=0xc000687e68 pc=0x973cb1
github.com/nspcc-dev/neo-go/pkg/network.(*Server).handleHeadersCmd(0xc00022c140, 0xdd0ca0, 0xc000374000, 0xc00000c020)
/home/rik/dev/neo-go/pkg/network/server.go:431 +0x74 fp=0xc000687fc0 sp=0xc000687eb0 pc=0x9ce5e4
runtime.goexit()
/usr/lib64/go/1.12/src/runtime/asm_amd64.s:1337 +0x1 fp=0xc000687fc8 sp=0xc000687fc0 pc=0x45ca51
created by github.com/nspcc-dev/neo-go/pkg/network.(*Server).handleMessage
/home/rik/dev/neo-go/pkg/network/server.go:705 +0xa4a
...
2020-03-04 20:26:18 +03:00
Evgenii Stratonikov
acea3867b2
smartcontract: implement ContextItem
2020-03-04 20:01:26 +03:00
Evgenii Stratonikov
46db4e9d9d
smartcontract: rename param_context.go to parameter.go
2020-03-04 20:01:26 +03:00
Evgenii Stratonikov
924d920423
smartcontract: support JSON unmarshaling of Signature param
2020-03-04 20:01:26 +03:00
Evgenii Stratonikov
7eaeb18f18
transaction: marshal ContractTX even if Data is nil
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It contains no information so it doesn't matter anyway.
2020-03-04 20:01:26 +03:00
Evgenii Stratonikov
634e9483d3
transaction: unmarshal Witness properly
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Both verification and invocation scripts need to
be unmarshaled from hex.
Also fix failing RPC tests: block contains non-pointer
`transaction.Witness` field and (*Witness).MarshalJSON method
is not called.
2020-03-04 20:01:26 +03:00
Evgenii Stratonikov
33f99104e8
transaction: unmarshal Output properly
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Address is marshaled in base58 and needs to be
decoded accordingly.
2020-03-04 20:01:26 +03:00
Evgenii Stratonikov
b4f8d66bd3
smartcontract: allow to marshal nil parameters
2020-03-04 19:55:04 +03:00
Evgenii Stratonikov
7cde58f731
smartcontract: adjust parameter value to type properly
2020-03-04 19:49:50 +03:00
Roman Khimov
81d89cd502
core: fix SystemFee calculation for Invocation TXes
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They have it specified right in the transaction. Unfortunately, this little
change rendered invalid our RPC test chain, but I think it became even better
after it, especially given that chain generation is a nice test by itself, so
it should be running as a regular test.
2020-03-04 19:23:23 +03:00
Roman Khimov
ae6edf0601
core: add a check for fractional gas in invocation TXes
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It's not allowed in C# code and that's reasonable as it's a sysfee essentially
that can only be integer.
2020-03-04 19:23:23 +03:00
Roman Khimov
823798514a
util: rename Int64Value to IntegralValue, add FractionalValue
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Makes it's interface more clear and allows to easily access fractional part.
2020-03-04 19:23:23 +03:00
Roman Khimov
7cc847d655
transaction: add some missing InvocationTX decoding checks
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Script must have something inside and GAS can't be negative.
2020-03-04 19:23:23 +03:00
Roman Khimov
a9d8c9e0d3
rpc/client: implement GetRawTransaction, fix #586
2020-03-03 20:43:57 +03:00
Roman Khimov
f01766131b
rpc/client: add a set of GetBlock methods
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They differ in input and output types (and data), thus four methods are
added.
2020-03-03 20:26:56 +03:00
Roman Khimov
685e34d83c
rpc: update client documentation
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Add missing methods, move example into something that can be compiled (and fix
it along the way).
2020-03-03 18:59:21 +03:00
Roman Khimov
f747b39bc6
docs: update RPC server documentation, add missing methods
...
And drop doc.go from server package as it duplicates docs/rpc.md and has no
value of its own (TODO list is managed with GitHub issues, really). Also, RPC
server is not really expected to be used by non-neo-go packages (contrary to
the client).
2020-03-03 18:18:56 +03:00
Roman Khimov
f5a1b928ce
pkg: fix gofmt issues
2020-03-03 17:22:15 +03:00
Roman Khimov
e41d434a49
*: move all packages from CityOfZion to nspcc-dev
2020-03-03 17:21:42 +03:00
Roman Khimov
59e6dac351
Merge pull request #708 from nspcc-dev/fix/trigger
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core: convert trigger.Type to byte when pushing on stack
2020-03-03 16:17:01 +03:00
Evgenii Stratonikov
fe3bbbd78a
core: convert trigger.Type to byte when pushing on stack
2020-03-03 16:13:19 +03:00
Roman Khimov
032cb513a6
Merge pull request #707 from nspcc-dev/skip-outdated-headers-on-add
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core: don't reverify stale headers in addHeader
2020-03-03 15:43:40 +03:00
Roman Khimov
4c8d327353
rpc: drop duplicating Invoke* structures
...
And use smartcontract.Parameter instead of vm.StackItem where
appropriate. Closes #689 .
2020-03-03 15:38:03 +03:00
Roman Khimov
56e37ad6ba
vm: drop duplicating stackItem structure, build JSON from Parameters
...
smartcontract.Parameter has everything needed now.
2020-03-03 15:38:03 +03:00
Roman Khimov
9b4fd99fbc
vm: break circular references when recursing into ToContractParameters
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Reference types can have circular pointers to each other, thus we need to
control recursion.
2020-03-03 15:38:03 +03:00
Roman Khimov
c3e73c5b7d
core: don't reverify stale headers in addHeader
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During networked synchronization we expect there to be a lot of duplicate
headers received and it makes no sense for us reverifying them.
2020-03-03 15:34:03 +03:00
Roman Khimov
3282c6ed41
Merge pull request #704 from nspcc-dev/feature/getrawmempool
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rpc: implement getrawmempool RPC
2020-03-02 19:44:19 +03:00
Anna Shaleva
e1fe12a07f
rpc: implement getrawmempool RPC
...
closes #175
2020-03-02 19:35:51 +03:00
Evgenii Stratonikov
1264b629f1
smartcontract: parse Struct item type same way as Array
2020-03-02 18:05:26 +03:00
Evgenii Stratonikov
05a3625b7d
wallet: implement (*Account).SignTx
...
It is used in both CLI and RPC.
2020-03-02 18:03:56 +03:00
Evgenii Stratonikov
6541bd4d42
vm: use Boolean
in (*BoolItem).String()
2020-03-02 18:01:49 +03:00
Evgenii Stratonikov
6add4f3e50
transaction: disallow negative outputs
...
Otherwise it is possible to make outputs which will sum
to the expected value, but steal GAS from some other account.
2020-03-02 18:01:49 +03:00
Evgenii Stratonikov
9e9d59b49a
core: set NetworkFee to 0 for Claim and Miner transactions
...
Claim tx have no GAS inputs and a positive output which
can lead to negative network fee.
2020-03-02 18:01:49 +03:00
Evgenii Stratonikov
21ef2638c0
consensus: log error if GetValidators() failed
2020-03-02 18:01:49 +03:00
Evgenii Stratonikov
de5215a564
core: use GetAccountStateOrNew() in (*Blockchain).GetValidators()
...
Target of the transaction output may not yet exist in database.
2020-03-02 18:01:49 +03:00
Evgenii Stratonikov
1b9968df67
core: optimize CalculateClaimable()
...
Because accumulated system fee is stored for every block,
it is easy to calculate sum with just to reads.
2020-03-02 18:01:49 +03:00
Evgenii Stratonikov
258d8be1dd
core: store all accumulated SystemFee with every block
2020-03-02 18:01:49 +03:00
Evgenii Stratonikov
f69c8a763b
core: store system fee together with block
...
Recalculating system fee can be rather costly if done
frequently.
2020-03-02 18:01:49 +03:00
Evgenii Stratonikov
972e0d8ad1
core: add one more Contract tx to the test chain
...
When testing CLI it is useful to have some spent coins
on an account with a known key.
2020-03-02 18:01:49 +03:00
Evgenii Stratonikov
37c2bc4733
rpc: implement (*Client).GetClaimable()
...
This is needed to form correct Claim transaction.
2020-03-02 18:01:49 +03:00
Evgenii Stratonikov
45b8669b42
core: verify Claim transactions
2020-03-02 18:01:49 +03:00
Evgenii Stratonikov
9d5841df38
rpc: make (*Client).SendRawTransaction public
2020-03-02 18:01:49 +03:00
Evgenii Stratonikov
44792ed5f7
core: make test chain format compatible with mainnet
...
Write uint32 length before every block.
2020-03-02 18:01:49 +03:00
Evgenii Stratonikov
51c4868641
rpc: implement getclaimable RPC
2020-03-02 18:01:49 +03:00
Evgenii Stratonikov
0e2a1f40ba
core: add ContractTX to a testchain generator
...
Simple transfer from multisig account to the account
of one of the validators.
2020-03-02 18:00:00 +03:00
Evgenii Stratonikov
72d72296c3
core: implement (*Transaction).GetSignedPart()
...
Marshalling it and taking all but last byte violates incapsulation
and is just wrong in case transaction already contains any witnesses.
2020-03-02 18:00:00 +03:00
Evgenii Stratonikov
95d9f36c98
core: implement UnclaimedBalance tracking
...
To make it easy to get unclaimed coins for the
specified account they must be tracked together.
2020-03-02 18:00:00 +03:00
Evgenii Stratonikov
7095ec6c51
core: implement (*Blockchain).CalculateClaimable
...
Calculating amount of GAS that can be claimed is required
for getclaimable RPC.
2020-03-02 18:00:00 +03:00
Roman Khimov
252a9f2f31
Merge pull request #690 from nspcc-dev/feature/getapplicationlog
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rpc: implement getapplicationlog RPC
2020-03-02 17:41:32 +03:00
Anna Shaleva
ff4384d7ff
rpc: implement getapplicationlog RPC
...
Closes #500
2020-03-02 17:25:27 +03:00
Anna Shaleva
7d46404e2d
smartcontract: turn trigger types into Type
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1) Turn trigger types from byte constants into Type
2) Add auto-generated stringer for future purposes
2020-03-02 17:25:27 +03:00
Anna Shaleva
b3621d4a86
smartcontract: remove unused structures
...
Removed following unused structures:
-smartcontract.ContextItem
-smartcontract.Signature
-smartcontract.ParameterContext
2020-03-02 17:25:27 +03:00
Anna Shaleva
535f391550
smartcontract: add marshaller for Parameter
...
1) Add marshaller and tests for smartcontract.Parameter
2) Add unmarshaller and tests for missing types of smartcontract.Parameter:
- MapType
- BoolType
2020-03-02 17:25:27 +03:00
Anna Shaleva
648e0bb242
rpc/smartcontract: merge contract parameter types
...
Merged two types:
- smartcontract.ParamType
- rpc.StackParamType
into single one:
- smartcontract.ParamType
as they duplicated the functionality.
NOTE: type smartcontract.MapType was added (as in C# implementation).
From now, list of supported smartcontract parameter types:
UnknownType
SignatureType
BoolType
IntegerType
Hash160Type
Hash256Type
ByteArrayType
PublicKeyType
StringType
ArrayType
MapType
InteropInterfaceType
VoidType
2020-03-02 17:25:21 +03:00
Evgenii Stratonikov
a3dacd3b74
tests: replace t.Fatal with require where possible
...
This makes tests less verbose and unifies the style
they are written in.
2020-03-02 17:22:27 +03:00
Evgenii Stratonikov
66f96e3f32
core: shutdown Blockchain gracefully in tests
2020-03-02 17:22:27 +03:00
Evgenii Stratonikov
3a5224344e
core: verify headers in AddHeaders()
...
Headers can be malformed so public methods should verify them
before adding.
2020-03-02 17:22:26 +03:00
Evgenii Stratonikov
357bb4ce41
core: get rid of global variables in tests
...
It can lead to unnecessary race conditions and is just
a bad practice.
2020-03-02 17:04:08 +03:00
Evgenii Stratonikov
8ca94e23c8
core: replace makeBlocks() with addBlocks() in tests
...
This simplifies tests a bit.
2020-03-02 17:04:08 +03:00
Evgenii Stratonikov
cbf26bac83
mempool: do not allocate new slice for verified transactions
...
Because transactions a iterated in an increasing order,
we can filter slice in-place.
2020-03-02 10:38:27 +03:00
Evgenii Stratonikov
0ef7a76e84
network: batch transactions on broadcast
2020-03-02 10:37:27 +03:00
Roman Khimov
ff551d2015
Merge pull request #700 from nspcc-dev/fix/forloop
...
compiler: do not short-circuit in complex conditions
2020-02-28 20:14:26 +03:00
Roman Khimov
36197056b1
Merge pull request #691 from nspcc-dev/network-conn-overflow-and-shutdown
...
Network conn overflow and shutdown
2020-02-28 18:16:29 +03:00
Evgenii Stratonikov
b461a6ab63
compiler: do not short-circuit in complex conditions
...
Current implementation of short-circuting is just plain wrong
as it uses `last` or `before-last` labels which meaning depend
on context. It doesn't even handle simple assignements like
`a := x == 1 && y == 2`.
This commit makes all jumps in such conditions local
and adds tests.
Closes #699 , #700 .
2020-02-28 17:44:46 +03:00
Roman Khimov
e213e69a33
network: rework shutdown sequence of Server
...
Close transport and disconnect peers right in the Shutdown(), so that no new
connections would be accepted and so that all the peers would be disconnected
correctly (avoiding the same deadlock as in e2116e4c3f
).
2020-02-28 16:22:04 +03:00
Roman Khimov
77624a8847
network: add Close() to discoverer, shut it down on exit
2020-02-28 16:22:04 +03:00
Evgenii Stratonikov
624a14f730
rpc: rename (*Client).SendToAddress to TransferAsset
...
SendToAddress name is similar to the `sendtoaddress` RPC call,
this can cause confusion.
Closes #686 .
2020-02-28 14:16:39 +03:00
Roman Khimov
3e2b490025
mempool: rework inputs verification, check Claim txes
...
Use more efficient check for Input and also check Claims to avoid double
claiming.
2020-02-27 13:43:35 +03:00
Roman Khimov
f329de73e8
mempool: fix Remove bug (dropping wrong tx!)
...
Uncovered by TestMemPoolAddRemoveWithInputsAndClaims (to be added later)
2020-02-27 13:43:35 +03:00
Roman Khimov
7d59fa0066
Merge pull request #696 from nspcc-dev/tx-verification-fixes
...
Claim and enrollment TX verification fixes
2020-02-27 12:45:36 +03:00
Roman Khimov
00d199ed85
core: fix NetworkFee calculation
...
Add doesn't change the variable state. Thanks to GolangCI for catching this.
2020-02-27 12:32:56 +03:00
Roman Khimov
7bea6e043e
core: add double claim verification check
2020-02-27 12:32:56 +03:00
Roman Khimov
29586f2aa7
core: add duplicate Claim verification check
...
Refactor HaveInputsDuplicate() out of the core and Blockchain, it doesn't
depend on the Blockchain state. Make it more efficient.
2020-02-27 12:32:56 +03:00
Roman Khimov
9b1ad40273
core: drop GetScriptHashesForVerifyingClaim, fix Claim's ScriptHash getter
...
Claim transactions should _add_ claims scripthashes to the standard list, not
replace them. And this code is actually very reusable.
2020-02-27 12:32:56 +03:00
Roman Khimov
9f7018503a
core/transaction: use new transaction.InOut for References
...
We don't need a map here, use simpler structures.
2020-02-27 12:00:03 +03:00
Roman Khimov
80de208a68
transaction: unbind GroupInputsByPrevHash from Transaction
...
Which allows to use it for ClaimTX. Make it also a bit more efficient as maps
are expensive.
2020-02-27 12:00:03 +03:00
Roman Khimov
71a18b1727
Merge pull request #688 from nspcc-dev/fix/jmplabels
...
compiler: use uint16 for labels
2020-02-27 00:28:46 +03:00
Roman Khimov
b1b184f77f
Merge pull request #692 from nspcc-dev/persist-timer-fix
...
core: reschedule the next persist in a second from previous one
2020-02-26 10:34:40 +03:00
Roman Khimov
2f2a4afe21
Merge pull request #693 from nspcc-dev/memorystore-seek-lock
...
storage: add locking into (*MemoryStore).Seek
2020-02-26 10:15:40 +03:00
Roman Khimov
c258adb532
core: move spent coin management out of the inner storeBlock loop
...
prevHash == input.PrevHash, so make less DB accesses and more real work. Fix
some bugs along the way:
* spentCoins structure may already be present in the DB when persisting TX,
there is nothing wrong with that and we shouldn't overwrite it
* it's only used for NEO and only to check for claim validity. Thus, when
processing claim tx the corresponding spentCoins should always be present
in the DB
2020-02-25 17:21:09 +03:00
Roman Khimov
36c6b6af14
core: put unspents get/put one loop above in storeBlock
...
Everywhere in this code prevHash == input.PrevHash, thus we can easily move
some common code out of the loop saving on DB accesses and
serialization/deserialization.
2020-02-24 18:53:10 +03:00
Roman Khimov
5c9681508b
transaction: strip off a layer of redirection from ClaimTX.Claims
...
We don't need a pointer here and this change makes this field compatible with
Transaction.Inputs which is useful in many scenarios.
2020-02-24 18:22:27 +03:00
Roman Khimov
ed9e9e8590
storage: add locking into (*MemoryStore).Seek
...
It was missing there.
2020-02-24 17:51:50 +03:00
Roman Khimov
b49808b766
core: reschedule the next persist in a second from previous one
...
It makes little sense queueing up several persistence goroutines (or actually
even running them concurrently).
2020-02-24 17:17:25 +03:00
Roman Khimov
e2116e4c3f
network: don't deadlock on connection overflow
...
(*Peer).Disconnect send an unregister signal to this goroutine, so invoking it
from here is not a good idea, run it asynchronously.
2020-02-24 15:56:49 +03:00