Commit graph

416 commits

Author SHA1 Message Date
Anna Shaleva
3d8d927178 core: check candidate is registered at the start of voiting
C# node returns an error if the candidate is not registered. We have this
check inside the ModifyAccountVotes, but (*NEO).vote doesn't panics and
just return bool on stack, so we should match exactly the C#'s
algorithm.
2021-03-29 17:04:15 +03:00
Anna Shaleva
a2a9d7ff05 core: move NNS record types to a separate package
We need this to avoid `native` dependency in RPC client.
2021-03-26 20:44:32 +03:00
Roman Khimov
b3f9cd1541 dao: drop network from DAO
Not used any more.
2021-03-26 13:45:18 +03:00
Roman Khimov
d314f82db3 transaction: drop Network from Transaction
We only need it when signing/verifying.
2021-03-26 13:45:18 +03:00
Anna Shaleva
1e649bc9a0 core: move NotaryVerificationPrice to a separate package
It is needed to avoid `native` dependency in RPC client.
2021-03-23 13:56:39 +03:00
Anna Shaleva
681bd89cc7 core: move native node roles to a separate pkg
We need this to avoid `native` dependency in the RPC client.
2021-03-23 13:56:34 +03:00
Roman Khimov
20144e6137 *: fix some misspellings spotted by GoReportCard 2021-03-22 12:13:08 +03:00
Anna Shaleva
96e198de97 core: fix Management.GetContract 2021-03-19 20:44:21 +03:00
Roman Khimov
b56e028733 *: add more package-specific documentation
For the most important packages at least.
2021-03-19 16:18:45 +03:00
Roman Khimov
a18fbc7bb1
Merge pull request #1827 from nspcc-dev/native/update_history
config: add NativeUpdateHistory
2021-03-16 12:47:22 +03:00
Anna Shaleva
9377751e65 config: add NativeUpdateHistory 2021-03-15 12:35:14 +03:00
Anna Shaleva
85a8644517 core: add nativenames.IsValid 2021-03-12 13:05:37 +03:00
Roman Khimov
6326094264 native: change getCommittee/getNextBlockValidators price
See neo-project/neo#2392, neo-project/neo#2391.
2021-03-12 11:32:27 +03:00
Evgeniy Stratonikov
1cb25d3190 native: use proper types in manifest 2021-03-11 11:48:38 +03:00
Evgeniy Stratonikov
9cb38a4b1b native: support StorageFee 2021-03-11 10:12:30 +03:00
Evgeniy Stratonikov
256cd09228 native: allow to set oracle request price 2021-03-11 10:12:30 +03:00
Evgeniy Stratonikov
27fc28bd69 native: allow to set candidate register price 2021-03-11 10:12:30 +03:00
Evgeniy Stratonikov
d9e62de454 native: fix prefixGASPerBlock doc comment 2021-03-11 10:12:30 +03:00
Evgeniy Stratonikov
3278d23852 native: rename Price to CPUFee
Method price is now multiplied by `BaseExecFee`.
2021-03-11 10:12:30 +03:00
Anna Shaleva
cdaca7be3e core: use Neo.Crypto.CheckSig for standard signature verification 2021-03-10 21:45:58 +03:00
Anna Shaleva
14ade42101 core: remove System.Binary.[Serialize, Deserialize] syscalls
And move their tests to native StdLib.
2021-03-10 19:24:19 +03:00
Anna Shaleva
5c9c168ee5 core: remove System.Binary.[Base64*, Base58*] syscalls
And move their tests to native StdLib.
2021-03-10 19:24:19 +03:00
Anna Shaleva
4d2ad4b9e2 core: remove System.Json.[Serialize, Deserialize] interops
And move their tests to native StdLib.
2021-03-10 19:24:19 +03:00
Anna Shaleva
f65485b735 core: remove System.Binary.Itoa and System.Binary.Atoi syscalls
And move their tests to native StdLib.
2021-03-10 19:24:19 +03:00
Anna Shaleva
2b90d4455f native: implement StdLib contract 2021-03-10 19:24:19 +03:00
Evgeniy Stratonikov
100f2db3fb native: implement CryptoLib contract 2021-03-10 19:24:19 +03:00
Evgeniy Stratonikov
2f490a3403 block: remove ConsensusData field 2021-03-10 13:38:44 +03:00
Evgeniy Stratonikov
ac227a80fe stateroot: use RoleStateValidator for verification 2021-03-09 13:51:10 +03:00
Evgeniy Stratonikov
a737d473fb native: use ToPreallocatedBytes where possible 2021-03-09 12:11:26 +03:00
Evgeniy Stratonikov
e551432b30 dao: serialize state.StorageItem as raw bytes 2021-03-09 12:11:26 +03:00
Evgeniy Stratonikov
55698d0426 dao: use raw state.StorageItem instead of pointer
It is now a slice, there is no need for additional indirection.
2021-03-09 12:11:25 +03:00
Evgeniy Stratonikov
fd4174ad31 core/state: remove IsConst from StorageItem 2021-03-09 11:59:08 +03:00
Evgeniy Stratonikov
4195603257 native: add NeoFSAlphabet node role 2021-03-05 13:13:31 +03:00
Evgeniy Stratonikov
ffd85dd51d native/policy: remove MaxBlockSize and MaxBlockSystemFee 2021-03-04 16:59:19 +03:00
Evgeniy Stratonikov
7b8533b67c native/policy: move MaxTransactionsPerBlock to config 2021-03-04 16:59:19 +03:00
Evgeniy Stratonikov
f9f1fe03b2 core: refactor native call
1. `System.Contract.CallNative` expects version on stack.
2. Actual method is determined based on current
   instruction pointer.
3. Native hashes don't longer depend on NEF checksum.
2021-02-26 10:59:09 +03:00
Evgeniy Stratonikov
cbda20aca3 core: fix native method call flags
Replace `WriteStates` with `States`.

Follow neo-project/neo#2339.
Close #1775.
Related #1725.
2021-02-25 18:07:33 +03:00
Evgeniy Stratonikov
ae30e30321 native: add NEP-11 check for name service 2021-02-19 17:06:07 +03:00
Evgeniy Stratonikov
9c0bbd0bfd smartcontract: add NEP-11 standard check
The only method missing is name, because it is
provided in manifest.
2021-02-19 17:06:07 +03:00
Roman Khimov
69458a9945
Merge pull request #1751 from nspcc-dev/microfixes
core: microfixes
2021-02-17 14:20:01 +03:00
Anna Shaleva
0cd02e2de8 core: update protocols regexps 2021-02-17 13:51:08 +03:00
Anna Shaleva
15d90925b8 core: refactor (*NameService).checkName method
It does not require native contract.
2021-02-17 13:29:18 +03:00
Anna Shaleva
1e108f20a7 core: remove description from NFT state 2021-02-17 13:19:26 +03:00
Anna Shaleva
46dfd36a1f core: fix native designateAsRole method
It shouldn't return anything.
2021-02-15 18:13:00 +03:00
Anna Shaleva
4893faa374 core: remove NEP17BalanceState if balance is null [addTokens]
Affects states.
2021-02-12 23:48:30 +03:00
Anna Shaleva
e1384cb795 core: fix native NameService methods return types
Affects dumps.
2021-02-12 18:58:31 +03:00
Anna Shaleva
49b1b4bb27 core: fix native Neo parameter name
Affects dumps.
2021-02-12 18:58:31 +03:00
Anna Shaleva
99f58d9cd5 core: fix native Ladger parameter type
Affects dumps.
2021-02-12 18:58:31 +03:00
Anna Shaleva
7021c76042 core: fix native Management's parameters names
Affects dumps.
2021-02-12 18:58:31 +03:00
Anna Shaleva
2bb8537151 core: use declared constant for Notary's verification price
This constant is used from the outside, it should be synced with the
real verification price.
2021-02-11 17:11:36 +03:00
Anna Shaleva
9bd2cae08e core: refactor (*Notary).verify
There could be only one Notary signer.
2021-02-11 17:11:36 +03:00
Evgeniy Stratonikov
02ca3d3dfd interop: reuse state.Native in ContractMD 2021-02-11 12:32:10 +03:00
Evgeniy Stratonikov
6ca7b4b966 interop: rename ContractID to ID
Helps further refactoring, see next commit.
2021-02-11 12:27:43 +03:00
Evgeniy Stratonikov
e1d2a5b5b7 state: split ContractBase and UpdateCounter
Latter doesn't make sense for native contracts.
2021-02-11 12:24:09 +03:00
Roman Khimov
7c419cebdc
Merge pull request #1729 from nspcc-dev/manifest-and-script-checks
Manifest and script checks
2021-02-10 20:58:52 +03:00
Roman Khimov
158f0d9d9c native/vm: add script check for deployed contracts
Refs. #1699.
2021-02-09 22:31:26 +03:00
Roman Khimov
62ef5a8dc7 native: enforce contract manifest UTF-8 validity
Refs. #1699.
2021-02-09 22:31:26 +03:00
Roman Khimov
1a4958b1d5 manifest: add ABI validity check
Some methods must be defined in a valid ABI. Refs. neo-project/neo#2263.
2021-02-08 13:27:39 +03:00
Evgeniy Stratonikov
2f6345f2d9 compiler: add Hash compatibility test 2021-02-08 13:09:41 +03:00
Roman Khimov
5ba074b4cf manifest: return an error from IsValid
Be more specific.
2021-02-08 12:04:57 +03:00
Roman Khimov
e4b5b59663
Merge pull request #1704 from nspcc-dev/binary_manifest
core: serialise manifest as stackitem
2021-02-05 23:58:07 +03:00
Roman Khimov
aad2b3adad
Merge pull request #1712 from nspcc-dev/nep17-nep11-onpayments
NEP17/NEP11 onPayments
2021-02-05 21:04:35 +03:00
Roman Khimov
cd9b34416e native: call onNEP11Transfer for NEP-11 transfers
See neo-project/neo#2287.
2021-02-05 20:48:45 +03:00
Anna Shaleva
a2715404d0 core: serialise manifest as stackitem 2021-02-05 19:10:15 +03:00
Roman Khimov
a442e1530d native: rename onPayment into onNEP17Payment
Follow neo-project/neo#2287.
2021-02-05 16:09:51 +03:00
Roman Khimov
cdfc7fc8fa
Merge pull request #1703 from nspcc-dev/initials_for_natives
core: store native contracts' initial values in the DB
2021-02-05 15:32:05 +03:00
Evgeniy Stratonikov
d7f68d3650 native: fix getCommittee name
`C` was in russian.
2021-02-05 13:34:05 +03:00
Anna Shaleva
2b06601646 core: change Oracle request ID endianness 2021-02-05 11:37:12 +03:00
Anna Shaleva
12f7111ca8 core: mark blocked accounts with empty byte array 2021-02-05 11:37:12 +03:00
Anna Shaleva
260bcd373c core: store initial native values into DAO 2021-02-05 10:43:17 +03:00
Roman Khimov
ac527650eb native: add Ledger contract, fix #1696
But don't change the way we process/store transactions and blocks. Effectively
it's just an interface for smart contracts that replaces old syscalls.

Transaction definition is moved temporarily to runtime package and Block
definition is removed (till we solve #1691 properly).
2021-02-04 13:12:11 +03:00
Roman Khimov
641896b2fb
Merge pull request #1658 from nspcc-dev/signature_collection/module
core, network: add Notary module
2021-02-02 22:24:14 +03:00
Anna Shaleva
19fa0daaa6 core, network: add Notary module 2021-02-02 22:01:20 +03:00
Roman Khimov
f7cb00b82d
Merge pull request #1678 from nspcc-dev/nameservice
Implement NameService
2021-02-01 22:52:59 +03:00
Evgeniy Stratonikov
e4ff8326b5 native: add NameService 2021-02-01 21:40:21 +03:00
Evgeniy Stratonikov
2336415f42 naitve: disallow contract name modification 2021-01-29 12:19:08 +03:00
Evgeniy Stratonikov
c1cc7e6f9d native: add additional parameters to deploy
1. Management contract has 2 overloads of `deploy` method.
2. Normal contracts should have `_deploy` with 2 parameters.
2021-01-29 12:19:08 +03:00
Evgeniy Stratonikov
849385a533 native: allow to overload native methods 2021-01-29 12:19:08 +03:00
Roman Khimov
818d5988f5
Merge pull request #1695 from nspcc-dev/committeechecks
native: unify committee checks
2021-01-29 11:58:33 +03:00
Evgeniy Stratonikov
690b787fe3 native: unify committee checks
Fail execution if tx is not signed by committee.
2021-01-29 10:50:17 +03:00
Evgeniy Stratonikov
9592f3e052 network: implement pool for Extensible payloads 2021-01-28 17:09:06 +03:00
Evgeniy Stratonikov
153678160e native: use majority hash only for oracles 2021-01-28 17:09:06 +03:00
Evgeniy Stratonikov
db4e7558e0 native: cache all roles in Designate 2021-01-28 17:09:05 +03:00
Evgenii Stratonikov
43e4d3af88 oracle: integrate module in core and RPC
1. Initialization is performed via `Blockchain` methods.
2. Native Oracle contract updates list of oracle nodes
  and in-fly requests in `PostPersist`.
3. RPC uses Oracle module directly.
2021-01-28 13:00:58 +03:00
Evgenii Stratonikov
7e16bea126 network: implement Oracle module 2021-01-28 12:43:20 +03:00
Evgeniy Stratonikov
73f888f02e core: allow to overload contract methods
Multiple methods with different parameter count can co-exist.
2021-01-27 12:51:07 +03:00
Roman Khimov
054ca27e9c state: use checksums and names to calculate contract hashes
It allows to deploy the same NEF using one sender and get different contract
hashes. See neo-project/neo#2240.
2021-01-22 12:22:48 +03:00
Roman Khimov
6b9b37f170 native: don't call CreateNativeContractHash() in oracle contract
Move oracleScript from global context to Oracle itself. We have the hash
already computed by NewContractMD, there is no need to repeat this
calculation.
2021-01-22 11:28:13 +03:00
Roman Khimov
476cbbebdc native: make registering as a candidate cost more
Follow neo-project/neo#2252.
2021-01-21 23:02:59 +03:00
Evgeniy Stratonikov
c6894f3f55 native: check for committee in setters 2021-01-21 15:20:34 +03:00
Roman Khimov
6ecc6f0422 native: call native contracts by ID instead of name
Fix #1666.
2021-01-18 00:38:23 +03:00
Roman Khimov
f39ede9869 opcode: add CALLT opcode, move ABORT/ASSERT
Refs. #1644. Hash compatibility test temporarily disabled, to be enabled when
it's up to date with current C# master.
2021-01-18 00:14:52 +03:00
Evgenii Stratonikov
1c0c331e25 core: update System.Contract.Call syscall
1. Remove `System.Contract.CallEx`.
2. Extend number of parameters.
3. Add return value count to `VM.Context`.
2021-01-14 18:23:36 +03:00
Evgenii Stratonikov
dbe81f9b80 smartcontract: move flags to a separate package 2021-01-14 17:52:09 +03:00
Roman Khimov
36b5751262
Merge pull request #1665 from nspcc-dev/nefstate
Store NEF in contract state
2021-01-14 10:14:38 +03:00
Evgeniy Stratonikov
0b26b46234 state: store NEF instead of script for contract
NEFs for native contracts are set statically, thus
field values are taken from the reference implementation.
2021-01-13 15:34:10 +03:00
Roman Khimov
524bf9aaa0 native: swap oracle and role management init
Role management doesn't need oracles, but oracles do need role management. See
neo-project/neo#2187.
2021-01-12 21:27:42 +03:00
Roman Khimov
ca86b78536
Merge pull request #1622 from nspcc-dev/nativenames
native: update contract names
2021-01-12 20:59:10 +03:00
Roman Khimov
4fa1476c03 native: use Hash160 method parameters where appropriate
Partially reverts 33386065bc, see
neo-project/neo#2183.
2021-01-12 18:08:12 +03:00
Evgenii Stratonikov
33b926586a native: update contract names
Follow https://github.com/neo-project/neo/pull/2152 .
2021-01-12 17:58:05 +03:00
Anna Shaleva
c13382e27d core: fix (*NEO).getCandidates
Don't need to pay attention to key prefix while sorting.
2020-12-25 17:03:05 +03:00
Anna Shaleva
bc3f8a3b48 core: fix (*NEO).computeCommitteeMembers
In (*NEO).computeCommitteeMembers we return standbyCommittee in case
if there's not enought candidates. But there can be standby committee
members among candidates, so we need to fill in known votes.
2020-12-24 12:47:42 +03:00
Anna Shaleva
33386065bc core: adjust parameters of native methods
This commit is mostly about Hash160 -> ByteArray for native contracts'
methods. Manifest is included into states, so we need to be compatible.
2020-12-23 11:18:44 +03:00
Anna Shaleva
e40f3610ed core: store MinimumDeploymentFee as uint32 2020-12-22 16:09:16 +03:00
Anna Shaleva
b1324db847 core: add notifications to ManagmentContract 2020-12-18 16:52:51 +03:00
Anna Shaleva
d34353aec2 core: add MinimumDeploymentFee 2020-12-18 16:48:05 +03:00
Anna Shaleva
a65544aab1 core: fix Managment destroy price
Too expensive.
2020-12-18 16:46:09 +03:00
Evgenii Stratonikov
3397f2c9be native: cache contract in Management contract 2020-12-18 13:11:17 +03:00
Anna Shaleva
31b06907c9 core: restrict allowed Oracle callbacks 2020-12-17 11:41:28 +03:00
Evgenii Stratonikov
62da365302 native: allow to modify StoragePrice in the policy contract 2020-12-16 13:55:40 +03:00
Evgenii Stratonikov
4946556830 native: allow to modify ExecFeeFactor in the policy contract 2020-12-16 13:55:40 +03:00
Evgenii Stratonikov
1840c1c80d core: redefine opcode prices
Prices are defined in as a coefficients to `BaseExecFee` which
is defined by Policy contract (TBD later).
Native method prices are defined without need to multiply.
2020-12-16 13:55:39 +03:00
Evgenii Stratonikov
dda4ba8d4d native: add compatibility test for hashes 2020-12-15 12:58:04 +03:00
Evgenii Stratonikov
1ffa1f9ade native: fix contract hashes 2020-12-15 12:58:04 +03:00
Evgenii Stratonikov
5310c7f3ce native: fix NEP17.Transfer cost
It was increased with the introducion of `postTransfer`.
2020-12-15 12:04:10 +03:00
Roman Khimov
cb5ecaefe7 native: drop OnPersistEnd
Now that PostPersist is being run for every native contract we can do our
dirty caching tricks right there instead of OnPersistEnd.
2020-12-14 15:24:15 +03:00
Roman Khimov
cf8cf93e7a native: change contract names, move them to separate package
Follow neo-project/neo#2138 and make RPC client's GetNativeContractHash
case-sensitive.
2020-12-14 15:24:15 +03:00
Roman Khimov
aff1469482 native: uppercase token symbols
Follow neo-project/neo#2136.
2020-12-14 15:24:15 +03:00
Roman Khimov
1e9253f1f0 interop: rename Neo.Native.Call to System.Contract.CallNative 2020-12-14 15:24:13 +03:00
Roman Khimov
ab12eee346 native: move contract deployment to management contract
See neo-project/neo#2119.
2020-12-14 15:23:46 +03:00
Roman Khimov
ad3547783d native: drop Neo.Native.Deploy, move contract init to management contract
The contract is almost a stub at the moment, though it does deploy other
contracts.
2020-12-14 13:33:41 +03:00
Roman Khimov
090bee8624 native: change OnPersist/PostPersist handling
Every contract now has these and they're always invoked. See
neo-project/neo#1913 and neo-project/neo#2119.
2020-12-13 21:36:06 +03:00
Anna Shaleva
2290b91b83 core: fix verification call flag
Previous commit sets AllowCall flag as required for Neo.Native.Call, but
invocation script was loaded with ReadStates flag => native contracts
verification failed.

Other contracts can also make use of AllowCall call flag.
2020-12-11 17:45:12 +03:00
Anna Shaleva
53e45d793b core: adjust call flags 2020-12-11 11:38:14 +03:00
Anna Shaleva
fadbae8997 core: rename call flags
Also new States flag is added and ReadOnly flag is adjusted.
2020-12-11 10:34:01 +03:00
Anna Shaleva
0b5cf78468 network: add notary request payload 2020-12-10 18:17:31 +03:00
Evgenii Stratonikov
e903e40085 core: call from native contracts synchronously
Follow neo-project/neo#2130.
2020-12-10 16:43:46 +03:00
Roman Khimov
02457d9f77
Merge pull request #1597 from nspcc-dev/fix/safemethods
manifest: add `Safe` flag to method descriptor
2020-12-09 16:32:19 +03:00
Evgenii Stratonikov
b7e86fa6a3 manifest: add Safe flag to method descriptor
`interop.Contex.AddMethod` sets `Safe` flag for native
contracts. This allows not to forget to change manifest
when changing call flags.
Also fixed invalid `Safe` flags for `Notary` and `Designate` contracts.
2020-12-08 13:27:43 +03:00
Anna Shaleva
74a143cee3 core: allow to change deposit's till for owner only 2020-12-08 10:39:20 +03:00
Roman Khimov
9211cb636c
Merge pull request #1555 from nspcc-dev/constant-contract-hashes
Constant contract hashes
2020-12-01 14:12:26 +03:00
Evgenii Stratonikov
1db27c004e native: do not fail on missing request in Oracle.PostPersist() 2020-12-01 12:29:18 +03:00
Evgenii Stratonikov
3085710e9b native: call onPayment only during transfer
OnPayment method should be called during GAS distribution
and NEO transfer.
2020-11-30 13:05:44 +03:00
Roman Khimov
1cf1fe5d74 *: introduce stable contract hashes
Follow neo-project/neo#2044.
2020-11-27 21:47:08 +03:00
Roman Khimov
7044e9be40
Merge pull request #1549 from nspcc-dev/core/fix_committee_update
core: update committee every [committee length] blocks
2020-11-27 11:04:40 +03:00
Anna Shaleva
17842dabd6 core: implement native Notary contract 2020-11-25 18:37:29 +03:00
Anna Shaleva
c013522296 core: remove native contracts' name method
We have `name` in contract manifest.
2020-11-25 18:37:29 +03:00
Anna Shaleva
0f68528095 core: add callback to VM context 2020-11-25 18:37:29 +03:00
Anna Shaleva
eca27055b8 core: fix NEP17 Transfer event
`Transfer` event declaration was placed at the wrong part of
`newNEP17Native`, that's why it had incorrect parameters.

Fixed.
2020-11-25 18:37:29 +03:00
Anna Shaleva
2fee69f26f core: add missing onPersist and postPersist methods to natives
Although not every contract is persisted (see
https://github.com/neo-project/neo/blob/master/src/neo/Ledger/Blockchain.cs#L94)
we have to add `onPersist` and `postPersist` methods to every
native contract in order to display them in manifest for users and
follow C# behaviour. In C# there are `onPersist` and `postPersist`
methods in base native contract class, see
https://github.com/neo-project/neo/blob/master/src/neo/SmartContract/Native/NativeContract.cs#L141
and
https://github.com/neo-project/neo/blob/master/src/neo/SmartContract/Native/NativeContract.cs#L148
2020-11-25 18:37:29 +03:00
Anna Shaleva
b00eb51c55 core: add P2PNotary designated role 2020-11-24 18:47:09 +03:00
Evgenii Stratonikov
7d91a3a89e pkg: move internal/ package to the root directory
This way we can use it in scripts and cli.
2020-11-24 16:39:56 +03:00
Evgenii Stratonikov
31eca342eb *: replace all NEP5 occurences to NEP17 2020-11-24 13:08:24 +03:00
Evgenii Stratonikov
b97dfae8d8 native: replace NEP-5 with NEP-17 2020-11-24 13:08:23 +03:00
Evgenii Stratonikov
42ae226f9e native: use proper stack for result
When native method calls other contract result should be put
on the stack of current context. With oracles this problem wasn't
noticed because of void return type.
2020-11-24 12:17:28 +03:00
Roman Khimov
eef921b8e0 native: allow NULL filter in oracle requests
Follow neo-project/neo#2067
2020-11-18 23:59:13 +03:00
Anna Shaleva
933bb4ca75 core: update committee every [committee length] blocks
Was changed in https://github.com/neo-project/neo/pull/1848. Affects
storage dumps.
2020-11-17 11:22:32 +03:00
Anna Shaleva
054e60c0cf core: remove NodeList from Oracle storage
The reference implementation does not store NodeList. This commit fixes
state difference for genesis block.
2020-11-16 19:09:34 +03:00
Roman Khimov
286d9185f4 smartcontract: remove contract features
We're featureless now, all contracts have access to storage and payable status
is to be determined via new NEP. Follow neo-project/neo#2060.
2020-11-13 21:26:23 +03:00
Evgenii Stratonikov
adf403666f native: decode storage item in Seek 2020-11-13 17:33:00 +03:00