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Author SHA1 Message Date
Anna Shaleva
b4866bd69e native: prohibit NEP-17 roundtrip with zero balance 
Close #3190.

Signed-off-by: Anna Shaleva <shaleva.ann@nspcc.ru>
 2023-11-07 19:37:37 +03:00
Roman Khimov
9a06995460 bigint: don't allocate in ToPreallocatedBytes 
Turns out, it's almost always allocating because we're mostly dealing with
small integers while the buffer size is calculated in 8-byte chunks here, so
preallocated buffer is always insufficient.

name                   old time/op    new time/op    delta
ToPreallocatedBytes-8    28.5ns ± 7%    19.7ns ± 5%   -30.72%  (p=0.000 n=10+10)

name                   old alloc/op   new alloc/op   delta
ToPreallocatedBytes-8     16.0B ± 0%      0.0B       -100.00%  (p=0.000 n=10+10)

name                   old allocs/op  new allocs/op  delta
ToPreallocatedBytes-8      1.00 ± 0%      0.00       -100.00%  (p=0.000 n=10+10)

Fix StorageItem reuse at the same time. We don't copy when getting values from
the storage, but we don when we're putting them, so buffer reuse could corrupt
old values.
 2022-06-02 15:38:39 +03:00
Anna Shaleva
deb1f6d3d8 core: emit notification events in a separate method 2022-05-19 08:48:26 +03:00
Roman Khimov
058a7eff90 Merge PR #2488 from nspcc-dev/reorder-neo-gas-distribution 2022-05-13 19:36:34 +03:00
Roman Khimov
54d8a37f3b native: make it mergeable with master again 2022-05-13 18:51:27 +03:00
Roman Khimov
85fe111aea neo: mint GAS after NEO transfer processing 
See neo-project/neo#2734.
 2022-05-13 18:05:27 +03:00
Elizaveta Chichindaeva
28908aa3cf [#2442] English Check 
Signed-off-by: Elizaveta Chichindaeva <elizaveta@nspcc.ru>
 2022-05-04 19:48:27 +03:00
AnnaShaleva
92282c70cb *: support customisable NotaryServiceFeePerKey value 
* Add corresponding methods to Notary contract.
* Extend RPC Client API.
* Adjust tests.
 2022-03-01 19:08:16 +03:00
Roman Khimov
aefb26255a dao: drop DAO interface 
It's a remnant from the days when we had Simple and Cached DAO
implementations, now it makes zero sense.
 2022-02-16 18:24:20 +03:00
Roman Khimov
9d2ef775cf storage: simplify (*MemCachedStore).Put/Delete interface 
They never return errors, so their interface should reflect that. This allows
to remove quite a lot of useless and never tested code.

Notice that Get still does return an error. It can be made not to do that, but
usually we need to differentiate between successful/unsuccessful accesses
anyway, so this doesn't help much.
 2022-02-16 18:24:20 +03:00
Roman Khimov
ac7e922606 native: avoid big.Int allocation in burn() 
addTokens and incBalance only read the amount, so it's not a problem.
 2021-12-02 15:40:43 +03:00
Roman Khimov
24a3cce1ca
Merge pull request #2169 from nspcc-dev/states-diff_mainnet_131795 
core: allow transfer 0 GAS/NEO with zero balance
 2021-09-14 17:30:41 +03:00
Anna Shaleva
7fc57c9d58 core: allow transfer 0 GAS/NEO with zero balance 
This commit fixes states diff at 131795 block of mainnet.

Transaction:
```
NEO-GO-VM > loadbase64 DAAQDBSPsxdYh6cITC3gUKI4oWmYxJs49gwUj7MXWIenCEwt4FCiOKFpmMSbOPYUwB8MCHRyYW5zZmVyDBT1Y+pAvCg9TQ4FxI6jBbPyoHNA70FifVtSOQwAEQwUj7MXWIenCEwt4FCiOKFpmMSbOPYMFL1Mb4Fqp6gHiEwzM6xSc8fLS+RpFMAfDAh0cmFuc2ZlcgwU9WPqQLwoPU0OBcSOowWz8qBzQO9BYn1bUjk=
READY: loaded 176 instructions
NEO-GO-VM 0 > ops
INDEX    OPCODE       PARAMETER
0        PUSHDATA1     ("")                                       <<
2        PUSH0
3        PUSHDATA1    8fb3175887a7084c2de050a238a16998c49b38f6
25       PUSHDATA1    8fb3175887a7084c2de050a238a16998c49b38f6
47       PUSH4
48       PACK
49       PUSH15
50       PUSHDATA1    7472616e73666572 ("transfer")
60       PUSHDATA1    f563ea40bc283d4d0e05c48ea305b3f2a07340ef    // NEO token
82       SYSCALL      System.Contract.Call (627d5b52)
87       ASSERT
88       PUSHDATA1     ("")
90       PUSH1
91       PUSHDATA1    8fb3175887a7084c2de050a238a16998c49b38f6
113      PUSHDATA1    bd4c6f816aa7a807884c3333ac5273c7cb4be469
135      PUSH4
136      PACK
137      PUSH15
138      PUSHDATA1    7472616e73666572 ("transfer")
148      PUSHDATA1    f563ea40bc283d4d0e05c48ea305b3f2a07340ef    // NEO token
170      SYSCALL      System.Contract.Call (627d5b52)
175      ASSERT

```

Go's applog:
```
{
   "id" : 1,
   "result" : {
      "txid" : "0x97d2ccb01467b22c73a2cb95f7af298f3a5bd8c849d7044371898b8efecdaabd",
      "executions" : [
         {
            "exception" : "at instruction 87 (ASSERT): ASSERT failed",
            "stack" : [],
            "gasconsumed" : "4988995",
            "notifications" : [],
            "trigger" : "Application",
            "vmstate" : "FAULT"
         }
      ]
   },
   "jsonrpc" : "2.0"
}
```

C#'s applog:
```
{
   "jsonrpc" : "2.0",
   "result" : {
      "executions" : [
         {
            "stack" : [],
            "notifications" : [
               {
                  "contract" : "0xef4073a0f2b305a38ec4050e4d3d28bc40ea63f5",
                  "state" : {
                     "type" : "Array",
                     "value" : [
                        {
                           "type" : "ByteString",
                           "value" : "j7MXWIenCEwt4FCiOKFpmMSbOPY="
                        },
                        {
                           "type" : "ByteString",
                           "value" : "j7MXWIenCEwt4FCiOKFpmMSbOPY="
                        },
                        {
                           "value" : "0",
                           "type" : "Integer"
                        }
                     ]
                  },
                  "eventname" : "Transfer"
               },
               {
                  "contract" : "0xd2a4cff31913016155e38e474a2c06d08be276cf",
                  "state" : {
                     "value" : [
                        {
                           "type" : "Any"
                        },
                        {
                           "type" : "ByteString",
                           "value" : "vUxvgWqnqAeITDMzrFJzx8tL5Gk="
                        },
                        {
                           "value" : "2490",
                           "type" : "Integer"
                        }
                     ],
                     "type" : "Array"
                  },
                  "eventname" : "Transfer"
               },
               {
                  "contract" : "0xef4073a0f2b305a38ec4050e4d3d28bc40ea63f5",
                  "state" : {
                     "value" : [
                        {
                           "value" : "vUxvgWqnqAeITDMzrFJzx8tL5Gk=",
                           "type" : "ByteString"
                        },
                        {
                           "value" : "j7MXWIenCEwt4FCiOKFpmMSbOPY=",
                           "type" : "ByteString"
                        },
                        {
                           "value" : "1",
                           "type" : "Integer"
                        }
                     ],
                     "type" : "Array"
                  },
                  "eventname" : "Transfer"
               }
            ],
            "vmstate" : "HALT",
            "gasconsumed" : "9977990",
            "trigger" : "Application",
            "exception" : null
         }
      ],
      "txid" : "0x97d2ccb01467b22c73a2cb95f7af298f3a5bd8c849d7044371898b8efecdaabd"
   },
   "id" : 1
}

```
 2021-09-10 17:18:09 +03:00
Anna Shaleva
61fd7bd6ba core: avoid nil values during natives manifest marshalling 2021-09-10 11:38:59 +03:00
Roman Khimov
64c780ad7a native: optimize totalSupply operations during token burn/mint 
We burn GAS in OnPersist for every transaction so some buffer reuse here is
quite natural.

This also doesn't change a lot in the overall TPS picture, maybe adding some
1%.
 2021-08-03 17:59:38 +03:00
Roman Khimov
5c65d33439 native: move required balance check to token contracts 
Which duplicates the check, but deduplicates error path. This check forced
double balance deserialization which is quite costly operation, so we better
do it once.

It's hardly noticeable as of TPS metrics though, maybe some 1-2%%.
 2021-08-03 17:59:38 +03:00
Anna Shaleva
e8bed184d5 core: implement dynamic NEP17 balances tracking 
Request NEP17 balances from a set of NEP17 contracts instead of getting
them from storage. LastUpdatedBlock tracking remains untouched, because
there's no way to retrieve it dynamically.
 2021-07-29 10:23:01 +03:00
Roman Khimov
5f13de3a76 *: simplify some integer checks with IsUint64() 
If we need a positive number we can do `IsUint64()` instead of checking that
`Int64()` is `> 0`.
 2021-07-19 15:42:42 +03:00
Evgeniy Stratonikov
d2e8254848 native: fix typo in comments 
Signed-off-by: Evgeniy Stratonikov <evgeniy@nspcc.ru>
 2021-07-05 11:04:19 +03:00
Evgeniy Stratonikov
a7722f0fa5 native: save balance value in storage for failed transfers 
Signed-off-by: Evgeniy Stratonikov <evgeniy@nspcc.ru>
 2021-07-05 11:03:42 +03:00
Anna Shaleva
be902afe9e core: do not allow NEP17 roundtrip in case of insufficient funds 
NEP17 roundtrip is prohibited if from account doesn't have enough funds.

This commit fixes states diff in block 92057 where account
NfuwpaQ1A2xaeVbxWe8FRtaRgaMa8yF3YM initiates two NEO roundtrips with
amount exceeding the account's balance:

block 92057: value mismatch for key +////xTbYWBH3r5qhRKZAPFPHabKfb2vhQ==: QQMhAkwBIQOZZwEA vs QQMhAkwBIQN/ZwEA
block 92057: value mismatch for key +v///ws=: kqlddcitCg== vs tphddcitCg==
block 92057: value mismatch for key +v///xTbYWBH3r5qhRKZAPFPHabKfb2vhQ==: QQEhBUWyDu0W vs QQEhBWmhDu0W

C#'s applog (contains False and False on stack for both transfers):
```
{
   "id" : 1,
   "jsonrpc" : "2.0",
   "result" : {
      "executions" : [
         {
            "gasconsumed" : "11955500",
            "exception" : null,
            "stack" : [
               {
                  "value" : false,
                  "type" : "Boolean"
               },
               {
                  "value" : false,
                  "type" : "Boolean"
               }
            ],
            "vmstate" : "HALT",
            "trigger" : "Application",
            "notifications" : []
         }
      ],
      "txid" : "0x8e73a7e9a566a514813907272ad65fc965002c3b098eacc5bdda529af19d7688"
   }
}
```

Go's applog (both transfers succeeded and GAS minted):
```
{
   "result" : {
      "executions" : [
         {
            "gasconsumed" : "11955500",
            "trigger" : "Application",
            "stack" : [
               {
                  "type" : "Boolean",
                  "value" : true
               },
               {
                  "type" : "Boolean",
                  "value" : true
               }
            ],
            "vmstate" : "HALT",
            "notifications" : [
               {
                  "eventname" : "Transfer",
                  "contract" : "0xd2a4cff31913016155e38e474a2c06d08be276cf",
                  "state" : {
                     "value" : [
                        {
                           "type" : "Any"
                        },
                        {
                           "value" : "22FgR96+aoUSmQDxTx2myn29r4U=",
                           "type" : "ByteString"
                        },
                        {
                           "value" : "4316",
                           "type" : "Integer"
                        }
                     ],
                     "type" : "Array"
                  }
               },
               {
                  "state" : {
                     "type" : "Array",
                     "value" : [
                        {
                           "value" : "22FgR96+aoUSmQDxTx2myn29r4U=",
                           "type" : "ByteString"
                        },
                        {
                           "type" : "ByteString",
                           "value" : "22FgR96+aoUSmQDxTx2myn29r4U="
                        },
                        {
                           "type" : "Integer",
                           "value" : "1111111111"
                        }
                     ]
                  },
                  "contract" : "0xef4073a0f2b305a38ec4050e4d3d28bc40ea63f5",
                  "eventname" : "Transfer"
               },
               {
                  "contract" : "0xef4073a0f2b305a38ec4050e4d3d28bc40ea63f5",
                  "state" : {
                     "type" : "Array",
                     "value" : [
                        {
                           "value" : "22FgR96+aoUSmQDxTx2myn29r4U=",
                           "type" : "ByteString"
                        },
                        {
                           "type" : "ByteString",
                           "value" : "22FgR96+aoUSmQDxTx2myn29r4U="
                        },
                        {
                           "type" : "Integer",
                           "value" : "1111111"
                        }
                     ]
                  },
                  "eventname" : "Transfer"
               }
            ]
         }
      ],
      "txid" : "0x8e73a7e9a566a514813907272ad65fc965002c3b098eacc5bdda529af19d7688"
   },
   "id" : 1,
   "jsonrpc" : "2.0"
}
```
 2021-06-09 13:36:50 +03:00
Anna Shaleva
58ab3b5ad1 core: get native nep17 balance from contract storage 
Not from DAO's items with storage.STNEP17Balances prefix, because
changes are reflected there only after notifications processing. And
this happens only after the transaction script is executed, but there
might be cases when we need to get the balance that was updated
earlier during the same transaction processing.

Affects storage dumps.
 2021-04-01 18:37:44 +03:00
Evgeniy Stratonikov
9cb38a4b1b native: support StorageFee 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
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
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
Anna Shaleva
4893faa374 core: remove NEP17BalanceState if balance is null [addTokens] 
Affects states.
 2021-02-12 23:48:30 +03:00
Evgeniy Stratonikov
6ca7b4b966 interop: rename ContractID to ID 
Helps further refactoring, see next commit.
 2021-02-11 12:27:43 +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
6ecc6f0422 native: call native contracts by ID instead of name 
Fix #1666.
 2021-01-18 00:38:23 +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
4fa1476c03 native: use Hash160 method parameters where appropriate 
Partially reverts 33386065bc, see
neo-project/neo#2183.
 2021-01-12 18:08:12 +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
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
ab12eee346 native: move contract deployment to management contract 
See neo-project/neo#2119.
 2020-12-14 15:23:46 +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
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
Evgenii Stratonikov
e903e40085 core: call from native contracts synchronously 
Follow neo-project/neo#2130.
 2020-12-10 16:43:46 +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
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
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
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
Renamed from pkg/core/native/native_nep5.go (Browse further)