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rust-bitcoin-unsafe-fast
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10 Commits

Author SHA1 Message Date
Dr. Maxim Orlovsky 3c21e301aa Better RawNewtorkMessage deserealization from IO stream (#231) 
Follow-up to https://github.com/rust-bitcoin/rust-bitcoin/pull/229

While working with remote peers over the network it is required to deserealize RawNetworkMessage from `TCPStream` to read the incoming messages. These messages can be partial – or one TCP packet can contain few of them. To make the library usable for such use cases, I have implemented the required functionality and covered it with unit tests.

Sample usage:
```rust
fn run() -> Result<(), Error> {
    // Opening stream to the remote bitcoind peer
    let mut stream = TcpStream::connect(SocketAddr::from(([37, 187, 0, 47], 8333));
    let start = SystemTime::now();

    // Constructing and sending `version` message to get some messages back from the remote peer
    let since_the_epoch = start.duration_since(UNIX_EPOCH)
        .expect("Time went backwards");
    let version_msg = message::RawNetworkMessage {
        magic: constants::Network::Bitcoin.magic(),
        payload: message::NetworkMessage::Version(message_network::VersionMessage::new(
            0,
            since_the_epoch.as_secs() as i64,
            address::Address::new(receiver, 0),
            address::Address::new(receiver, 0),
            0,
            String::from("macx0r"),
            0
        ))
    };
    stream.write(encode::serialize(&version_msg).as_slice())?;

    // Receiving incoming messages
    let mut buffer = vec![];
    loop {
        let result = StreamReader::new(&mut stream, None).read_messages();
        if let Err(err) = result {
            stream.shutdown(Shutdown::Both)?;
            return Err(Error::DataError(err))
        }
        for msg in result.unwrap() {
            println!("Received message: {:?}", msg.payload);
        }
    }
}
```

Sample output is the following:
```
Received message: Version(VersionMessage { version: 70015, services: 1037, timestamp: 1548637162, receiver: Address {services: 0, address: [0, 0, 0, 0, 0, 65535, 23536, 35968], port: 33716}, sender: Address {services: 1037, address: [0, 0, 0, 0, 0, 0, 0, 0], port: 0}, nonce: 1370726880972892633, user_agent: "/Satoshi:0.17.99/", start_height: 560412, relay: true })
Received message: Verack
Received message: Alert([1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 255, 255, 255, 127, 0, 0, 0, 0, 255, 255, 255, 127, 254, 255, 255, 127, 1, 255, 255, 255, 127, 0, 0, 0, 0, 255, 255, 255, 127, 0, 255, 255, 255, 127, 0, 47, 85, 82, 71, 69, 78, 84, 58, 32, 65, 108, 101, 114, 116, 32, 107, 101, 121, 32, 99, 111, 109, 112, 114, 111, 109, 105, 115, 101, 100, 44, 32, 117, 112, 103, 114, 97, 100, 101, 32, 114, 101, 113, 117, 105, 114, 101, 100, 0])
```

Working sample code can be found here: https://github.com/dr-orlovsky/bitcoinbigdata-netlistener
 2019-02-27 16:41:28 -05:00
Carl Dong 4bf99e79f8
Merge pull request #236 from dongcarl/2019-02-remove-unused-option-decoding 
Remove unused Option en/decoding
 2019-02-22 10:14:37 -05:00
Carl Dong 17c0f4e784 Remove unused Option en/decoding 2019-02-20 17:08:36 -05:00
Carl Dong 2f70c3bc34 Remove extraneous clones in consensus::params 2019-02-20 15:47:31 -05:00
Carl Dong a944c7fbd0 key: Use correct error for decoding 
This change also moves the secp256k1::Error wrapper from util::Error to
consensus::encode::Error, since we do not use it anywhere else. We can
add it back to util::Error once we have instances of secp256k1::Error
that are not related to consensus::encode.
 2019-02-11 15:15:03 -05:00
Carl Dong 99f63a8ca4 Convert codebase from util::hash to bitcoin_hashes 
Also replace unsafe transmute with call to read_u64_into
 2019-01-24 16:27:52 -05:00
Carl Dong 45aa709467 Implement En/Decodable for sha256d::Hash 2019-01-24 11:31:07 -05:00
Dimitris Apostolou 132ca5ea95 Fix typos 2019-01-23 14:17:29 -05:00
Carl Dong 0f42ca69b0 Move relevant names into consensus::encode 
- Move network::encodable::* to consensus::encode::*
- Rename Consensus{En,De}codable to {En,De}codable (now under
  consensus::encode)
- Move network::serialize::Error to consensus::encode::Error
- Remove Raw{En,De}coder, implement {En,De}coder for T: {Write,Read}
  instead
- Move network::serialize::Simple{En,De}coder to
  consensus::encode::{En,De}coder
- Rename util::Error::Serialize to util::Error::Encode
- Modify comments to refer to new names
- Modify files to refer to new names
- Expose {En,De}cod{able,er}, {de,}serialize, Params
- Do not return Result for serialize{,_hex} as serializing to a Vec
  should never fail
 2018-09-25 21:19:35 +08:00
Carl Dong 97937b1b5f Move network::consensus_params to consensus::params 2018-09-25 21:13:34 +08:00