Commit graph

111 commits

Author SHA1 Message Date
Roman Khimov
74590551c4 core: add some interops
This also changes Verify to VerifyTx and VerifyWitnesses, because there is a
need to pass a block for some interop functions.
2019-10-15 12:56:25 +03:00
Roman Khimov
8266a5ce19 core: export GetContractState/GetScriptHashesForVerifying via Blockchainer
These are gonna be used by interops and are also useful in general.
2019-10-15 12:56:25 +03:00
Roman Khimov
19fd7f844e core: add GetUnspentCoinState() for future interops 2019-10-15 12:56:25 +03:00
Roman Khimov
bfddf9b3f6 core: implement StorageItem for future interops 2019-10-15 12:56:25 +03:00
Roman Khimov
b7c1efe7e3 core: fix References() result key type
If the block references two ouputs in some other transaction the code failed
to verify it because of key collision. C# code implements it properly by using
full CoinReference type as a key, so let's do it in a similar fashion.
2019-10-01 13:41:26 +03:00
Roman Khimov
9617a6f9e9 network: fix requestBlocks() for (headers == blocks + 1)
In the very specific case when the list of headers received is exactly one
block ahead of the chain of full blocks requestBlocks() failed to generate
request to get the next full block.
2019-09-27 15:42:35 +03:00
Roman Khimov
c531dc0bde network: add block queue
This one will replace blockCache in Blockchain itself as it can and should be
external from it. The idea is that we only feed successive blocks into the
Blockchain and it only stores valid proper Blockchain and nothing else.
2019-09-27 13:00:09 +03:00
Roman Khimov
5a0f08f2c0 network: fix SIGSEGV on unknown message acceptance
For example, at the moment our node can't handle `consensus` message, so when
it received it before the patch it just crashed because of uninitialized `p`.
2019-09-22 20:09:55 +03:00
Roman Khimov
96618015cd network: implement EncodeBinary() for MerkleBlock 2019-09-17 13:21:52 +03:00
Roman Khimov
d1a4e43c48 io: redo Serializable to return errors in BinReader/BinWriter
Further simplifies error handling.
2019-09-17 13:21:52 +03:00
Roman Khimov
0bb8950f89 make TXer and Payload implement Serializable
Both are duplicating Serializable at the moment, but let's keep them for the
future.
2019-09-17 13:21:52 +03:00
Roman Khimov
e299a44983 io: drop Size() method from Serializable and associated
It's no longer needed after the io.GetVarSize() improvement. It's duplicating
a lot of EncodeBinary() logic also.
2019-09-17 13:21:45 +03:00
Roman Khimov
0da9fe6946 io: move size calculator there
It's mostly used for Serializable and in other cases where one needs to
estimate binary-encoded size of the stucture. This also simplifies future
removal of the Size() from Serializable.
2019-09-16 23:39:54 +03:00
Roman Khimov
5bf00db2c9 io: move BinReader/BinWriter there, redo Serializable with it
The logic here is that we'll have all binary encoding/decoding done via our io
package, which simplifies error handling. This functionality doesn't belong to
util, so it's moved.

This also expands BufBinWriter with Reset() method to fit the needs of core
package.
2019-09-16 23:39:51 +03:00
Roman Khimov
aacf58c9ab util: add 'constructors' for BinReader/BinWriter
And an additional BufBinWriter to ease buffer management.
2019-09-16 23:38:48 +03:00
Roman Khimov
b9ff4d929c network: add getaddr message handling
Respond with known good addresses.
2019-09-16 16:32:04 +03:00
Roman Khimov
b2530a4c93 network: be more specific on port mismatch error 2019-09-16 16:32:04 +03:00
Roman Khimov
773ccc2b92 network: allow discoverer to reuse addresses
...and don't try to connect to the nodes we're already connected to.

Before this change we had a problem of discoverer throwing away good valid
addresses just because they are already known which lead to pool draining over
time (as address reuse was basically forbidden and getaddr may not get enough
new nodes).
2019-09-16 16:32:04 +03:00
Roman Khimov
46dc141c6c network: enlarge address request queue
Queuing one message is not reliable enough, the peer that gets it can fail to
actually make a request, so make this queue a bit deeper to have a higher
chance of success.
2019-09-16 16:32:04 +03:00
Roman Khimov
d3bb8ddf8f network: handle errors and connection close more correctly
This makes writer side handle errors properly and fixes communication between
reader and writer goroutine to always correctly unregister the peer. This is
especially important for the case where error occurs before handshake
completes as in this case we don't even have goroutine in startProtocol()
running.
2019-09-16 16:32:04 +03:00
Roman Khimov
76c7cff67f network: make node strictly follow handshake procedure
Don't accept other messages before handshake is completed, check handshake
message sequence.
2019-09-16 16:32:04 +03:00
Roman Khimov
c6487423ae network: close connection on disconnect
If it's already closed, this won't hurt, but in the case of logical error it
saves us from leaking this connection (and potentially, peer).
2019-09-16 16:26:30 +03:00
Roman Khimov
90e13debe4 network: implement getaddr sends and addr receival
Request new addresses if we're short on known addresses pool size.
2019-09-16 16:26:30 +03:00
Roman Khimov
2a49e68d77 network: start worker goroutine for every connection attempts
Prevents blocking on write to workCh which can be dangerous for the server.
2019-09-16 16:26:30 +03:00
Roman Khimov
b4e284f301 discovery: make pool management more reliable
Just drop excessive addresses, otherwise we can block for no good reason.
2019-09-16 16:26:30 +03:00
Roman Khimov
85f19936dd network: implement connection retries
It's worth to try a bit more than once.
2019-09-16 16:26:30 +03:00
Roman Khimov
be6c905e5d network: use and improve discovery mechanism for reconnections
This makes our node reconnect to other nodes if connection drops for some
reason. Fixes #390.
2019-09-16 16:26:30 +03:00
Roman Khimov
8d9bc83214 util: drop Endpoint structure, fix #321
I think it's useless, buggy and hides parsing errors for no good reason.
2019-09-09 17:54:38 +03:00
Roman Khimov
fabd11699a *: gofmt -s
Appy gofmt for all the source tree.
2019-09-09 12:02:24 +03:00
Roman Khimov
db9e37b3bb *: fix golint's omit type suggestions
pkg/core/transaction/attribute.go:67:14: should omit type uint8 from declaration of var urllen; it will be inferred from the right-hand side
pkg/crypto/keys/publickey.go:184:8: should omit type []byte from declaration of var b; it will be inferred from the right-hand side
pkg/network/payload/version_test.go:15:12: should omit type bool from declaration of var relay; it will be inferred from the right-hand side

Refs. #213.
2019-09-03 18:16:48 +03:00
Roman Khimov
a9b9c9226d *: add/fix godoc comments to satisfy golint
Fixes things like:
 * exported type/method/function X should have comment or be unexported
 * comment on exported type/method/function X should be of the form "X ..."
   (with optional leading article)

Refs. #213.
2019-09-03 17:57:51 +03:00
Roman Khimov
e72a8bbecd network: decode CMDGetData the same way as CMDInv
As they're the same wrt the payload.
2019-08-30 13:14:12 +03:00
Roman Khimov
e03eac9dcc payload: move one test from dev for inventory
And drop it from the _pkg.dev.
2019-08-30 11:41:10 +03:00
Roman Khimov
6cf74e2d83 payload: fix wrong stringer impl for InventoryType 2019-08-30 11:41:10 +03:00
Roman Khimov
f636bb9b6e payload: extend headers test, add limit
... from _pkg.dev and drop headers parsing there.
2019-08-30 11:41:10 +03:00
Roman Khimov
2d94a1e337 network: add getblocks message parsing
It has identical structure to the `getheaders`.
2019-08-29 21:23:57 +03:00
Roman Khimov
01c96fbc50 payload: improve address test
Check that the structure has proper values stored.
2019-08-29 21:23:57 +03:00
Roman Khimov
650a1d4bcc payload: expand version test with explicit data checks 2019-08-29 21:23:57 +03:00
Roman Khimov
2e3172f8a5 payload: fix tests to use asserts
Like in 483b875f4a.
2019-08-29 21:23:57 +03:00
Roman Khimov
c949d2ec53 payload: fix Size() calculation for version
UserAgent is variable-length-encoded. Fix associated test.
2019-08-29 21:23:57 +03:00
Roman Khimov
4f23117d32 payload: fix wrong useragent parsing in version
C# code reads is as a proper variable-length string, so it's not limited to
252 bytes.
2019-08-29 13:42:16 +03:00
Roman Khimov
459542a978 pkg/network: convert to using binaryReader/Writer 2019-08-28 19:45:17 +03:00
Roman Khimov
a436e22ec1 pkg/network: sort messages
Just for convenience.
2019-08-27 20:12:01 +03:00
Roman Khimov
0f265a6a04 _pkg.dev: drop wire/command
Transferring some missing commands to pkg/network.
2019-08-27 20:08:48 +03:00
Roman Khimov
e89e78159b _pkg.dev: drop wire/protocol package
Move service definitions from it into version (just to save them), but other
than that it's useless for master that has configs ruling the networks.
2019-08-27 19:56:12 +03:00
Roman Khimov
ec7e17ffa6 pkg: make use of the new crypto/hash package
Simplifies a lot of code and removes some duplication. Unfortunately I had to
move test_util random functions in same commit to avoid cycle
dependencies. One of these random functions was also used in core/transaction
testing, to simplify things I've just dropped it there and used a static
string (which is nice to have for a test anyway).

There is still sha256 left in wallet (but it needs to pass Hash structure into
the signing function).
2019-08-26 13:32:19 +03:00
Roman Khimov
2fd782eee8 util: drop RandUint32()
I don't see anything useful in it, all the current users of it should just use
plain rand.Uint32() not limiting its output in any way.
2019-08-26 13:32:19 +03:00
dauTT
095653af23 Implement rpc server method: sendrawtransaction (#174)
* Added new config attributes: 'SecondsPerBlock','LowPriorityThreshold'

* Added new files:

* Added new method: CompareTo

* Fixed empty Slice case

* Added new methods: LessThan, GreaterThan, Equal, CompareTo

* Added new method: InputIntersection

* Added MaxTransactionSize, GroupOutputByAssetID

* Added ned method: ScriptHash

* Added new method: IsDoubleSpend

* Refactor blockchainer, Added Feer interface, Verify and GetMemPool method

* 1) Added MemPool
2) Added new methods to satisfy the blockchainer interface: IsLowPriority, Verify, GetMemPool

* Added new methods: RelayTxn, RelayDirectly

* Fixed tests

* Implemented RPC server method sendrawtransaction

* Refactor getrawtransaction, sendrawtransaction in separate methods

* Moved 'secondsPerBlock' to config file

* Implemented Kim suggestions:
1) Fixed data race issues
2) refactor Verify method
3) Get rid of unused InputIntersection  method due to refactoring Verify method
4) Fixed bug in https://github.com/CityOfZion/neo-go/pull/174#discussion_r264108135
5) minor simplications of the code

* Fixed minor issues related to

1) space
2) getter methods do not need pointer on the receiver
3) error message
4) refactoring  CompareTo method in uint256.go

* Fixed small issues

* Use sync.RWMutex instead of sync.Mutex

* Refined (R)Lock/(R)Unlock

* return error instead of bool in Verify methods
2019-03-20 12:30:05 +00:00
dauTT
19201dcf52 Implemented rpc server method GetRawTransaction (#135)
* Added utility function GetVarSize

* 1) Added Size method: this implied that Fixed8 implements now the serializable interface. 2) Added few arithmetic operation (Add, Sub, div): this will be used to calculated networkfeeand feePerByte. Changed return value of the Value() method to int instead of int64. Modified fixed8_test accordingly.

* Implemented Size or MarshalJSON method.
- Structs accepting the Size method implement the serializable interface.
- Structs accepting the MarshalJSON method implements the customized json marshaller interface.

* Added fee calculation

* Implemented rcp server method GetRawTransaction

* Updated Tests

* Fixed:
1) NewFixed8 will accept as input int64
2) race condition affecting configDeafault, blockchainDefault

* Simplified Size calculation

* 1) Removed global variable blockchainDefault, configDefault
2) Extended Blockchainer interface to include the methods: References, FeePerByte, SystemFee, NetworkFee
3) Deleted fee_test.go, fee.go. Moved corresponding methods to blockchain_test.go and blockchain.go respectively
4) Amended tx_raw_output.go

* Simplified GetVarSize Method

* Replaced ValueAtAndType with ValueWithType

* Cosmetic changes + Added test case getrawtransaction_7

* Clean up Print statement

* Filled up keys

* Aligned verbose logic with the C#-neo implementation

* Implemented @Kim requests
Refactor server_test.go

* Small fixes

* Fixed verbose logic
Added more tests
Cosmetic changes

* Replaced assert.NoError with require.NoError

* Fixed tests by adding context.Background() as argument

* Fixed tests
2019-02-20 18:39:32 +01:00
Evgeniy Kulikov
cdba88b9f2 Code refactoring (#143)
- simplify code
- prealoc slices
- check errors in tests
- regexp Compile replaced with MustCompile
- uint* cannot be negative
2019-02-19 14:22:33 +01:00