This repository has been archived by the owner on Mar 23, 2021. It is now read-only.
-
Notifications
You must be signed in to change notification settings - Fork 33
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
bitcoind HTTP API
- Loading branch information
Showing
25 changed files
with
306 additions
and
368 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Some generated files are not rendered by default. Learn more about how customized files appear on GitHub.
Oops, something went wrong.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file was deleted.
Oops, something went wrong.
This file was deleted.
Oops, something went wrong.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,169 @@ | ||
| use crate::blocksource::{self, BlockSource}; | ||
| use bitcoin_support::{deserialize, Block, Network, Transaction}; | ||
| use futures::{Future, Stream}; | ||
| use reqwest::r#async::Client; | ||
| use serde::Deserialize; | ||
| use std::time::Duration; | ||
| use tokio::timer::Interval; | ||
|
|
||
| #[derive(Deserialize)] | ||
| struct ChainInfo { | ||
| bestblockhash: String, | ||
| } | ||
|
|
||
| #[derive(Debug)] | ||
| pub enum Error { | ||
| Reqwest(reqwest::Error), | ||
| Hex(hex::FromHexError), | ||
| BlockDeserialization(bitcoin_support::consensus::encode::Error), | ||
| TransactionDeserialization(String), | ||
| } | ||
|
|
||
| #[derive(Clone)] | ||
| pub struct BitcoindHttpBlockSource { | ||
| network: Network, | ||
| base_url: String, | ||
| client: Client, | ||
| } | ||
|
|
||
| impl BitcoindHttpBlockSource { | ||
| pub fn new(url: String, network: Network) -> Self { | ||
| Self { | ||
| network, | ||
| base_url: url, | ||
| client: Client::new(), | ||
| } | ||
| } | ||
|
|
||
| fn latest_block(&self) -> impl Future<Item = Block, Error = Error> + Send + 'static { | ||
| let cloned_self = self.clone(); | ||
|
|
||
| self.latest_block_hash() | ||
| .and_then(move |latest_block_hash| cloned_self.block_by_hash(latest_block_hash)) | ||
| } | ||
|
|
||
| fn latest_block_hash(&self) -> impl Future<Item = String, Error = Error> + Send + 'static { | ||
| let bitcoind_blockchain_info_url = format!("{}/rest/chaininfo.json", self.base_url); | ||
|
|
||
| self.client | ||
| .get(bitcoind_blockchain_info_url.as_str()) | ||
| .send() | ||
| .map_err(|e| { | ||
| log::error!("Error when sending request to bitcoind"); | ||
| Error::Reqwest(e) | ||
| }) | ||
| .and_then(move |mut response| { | ||
| response.json::<ChainInfo>().map_err(|e| { | ||
| log::error!("Error when deserialising the response from bitcoind"); | ||
| Error::Reqwest(e) | ||
| }) | ||
| }) | ||
| .map(move |blockchain_info| blockchain_info.bestblockhash) | ||
| } | ||
|
|
||
| fn block_by_hash( | ||
| &self, | ||
| block_hash: String, | ||
| ) -> impl Future<Item = Block, Error = Error> + Send + 'static { | ||
| let raw_block_by_hash_url = format!("{}/rest/block/{}.hex", self.base_url, block_hash); | ||
|
|
||
| self.client | ||
| .get(raw_block_by_hash_url.as_str()) | ||
| .send() | ||
| .map_err(Error::Reqwest) | ||
| .and_then(|mut response| response.text().map_err(Error::Reqwest)) | ||
| .and_then(move |mut response_text| { | ||
| response_text = response_text.as_str().trim().to_string(); | ||
| hex::decode(response_text).map_err(Error::Hex) | ||
| }) | ||
| .and_then(|bytes| deserialize(bytes.as_ref()).map_err(Error::BlockDeserialization)) | ||
| .map(move |block| { | ||
| log::trace!("Got {:?}", block); | ||
| block | ||
| }) | ||
| } | ||
|
|
||
| pub fn transaction_by_hash( | ||
| &self, | ||
| transaction_hash: String, | ||
| ) -> impl Future<Item = Transaction, Error = Error> + Send + 'static { | ||
| let raw_transaction_by_hash_url = | ||
| format!("{}/rest/tx/{}.hex", self.base_url, transaction_hash); | ||
|
|
||
| self.client | ||
| .get(raw_transaction_by_hash_url.as_str()) | ||
| .send() | ||
| .map_err(Error::Reqwest) | ||
| .and_then(|mut response| response.text().map_err(Error::Reqwest)) | ||
| .and_then(move |mut response_text| { | ||
| response_text = response_text.as_str().trim().to_string(); | ||
| hex::decode(response_text).map_err(Error::Hex) | ||
| }) | ||
| .and_then(|bytes| { | ||
| deserialize(bytes.as_ref()).map_err(|e| { | ||
| log::error!( | ||
| "Got new transaction but failed to deserialize it because {:?}", | ||
| e | ||
| ); | ||
| Error::TransactionDeserialization(format!( | ||
| "Failed to deserialize the response from bitcoind into a transaction: {}", | ||
| e | ||
| )) | ||
| }) | ||
| }) | ||
| .inspect(move |transaction| { | ||
| log::debug!("Fetched transaction {:?}", transaction); | ||
| }) | ||
| } | ||
| } | ||
|
|
||
| impl BlockSource for BitcoindHttpBlockSource { | ||
| type Block = Block; | ||
| type Error = Error; | ||
|
|
||
| fn blocks( | ||
| &self, | ||
| ) -> Box<dyn Stream<Item = Self::Block, Error = blocksource::Error<Error>> + Send> { | ||
| // The Bitcoin blockchain has a mining interval of about 10 minutes. | ||
| // The poll interval is configured to once every 2 minutes for mainnet and | ||
| // testnet so we don't have to wait to long to see a new block. | ||
| let poll_interval = match self.network { | ||
| Network::Mainnet => 120_000, | ||
| Network::Testnet => 120_000, | ||
| Network::Regtest => 300, | ||
| }; | ||
|
|
||
| log::info!(target: "bitcoin::blocksource", "polling for new blocks from bitcoind on {} every {} seconds", self.network, poll_interval); | ||
|
|
||
| let cloned_self = self.clone(); | ||
|
|
||
| let stream = Interval::new_interval(Duration::from_millis(poll_interval)) | ||
| .map_err(blocksource::Error::Timer) | ||
| .and_then(move |_| { | ||
| cloned_self | ||
| .latest_block() | ||
| .map(Some) | ||
| .or_else(|error| { | ||
| match error { | ||
| Error::Reqwest(e) => { | ||
| log::warn!(target: "bitcoin::blocksource", "reqwest error encountered during polling: {:?}", e); | ||
| Ok(None) | ||
| } | ||
| Error::Hex(e) => { | ||
| log::warn!(target: "bitcoin::blocksource", "hex-decode error encountered during polling: {:?}", e); | ||
| Ok(None) | ||
| } | ||
| Error::BlockDeserialization(e) => { | ||
| log::warn!(target: "bitcoin::blocksource", "block-deserialization error encountered during polling: {:?}", e); | ||
| Ok(None) | ||
| } | ||
| _ => Err(error) | ||
| } | ||
| }) | ||
| .map_err(blocksource::Error::Source) | ||
| }) | ||
| .filter_map(|maybe_block| maybe_block); | ||
|
|
||
| Box::new(stream) | ||
| } | ||
| } |
Oops, something went wrong.