Commit graph

29 commits

Author SHA1 Message Date
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)