depolymerization

wire gateway for Bitcoin/Ethereum
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rpc_utils.rs (2473B)

      1 /*
      2   This file is part of TALER
      3   Copyright (C) 2022-2026 Taler Systems SA
      4 
      5   TALER is free software; you can redistribute it and/or modify it under the
      6   terms of the GNU Affero General Public License as published by the Free Software
      7   Foundation; either version 3, or (at your option) any later version.
      8 
      9   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
     10   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
     11   A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details.
     12 
     13   You should have received a copy of the GNU Affero General Public License along with
     14   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
     15 */
     16 use std::{path::PathBuf, str::FromStr};
     17 
     18 use bitcoin::{Amount, Network};
     19 
     20 /// Default chain dir <https://github.com/bitcoin/bitcoin/blob/master/doc/files.md#data-directory-location>
     21 pub fn chain_dir(network: Network) -> &'static str {
     22     match network {
     23         Network::Bitcoin => "main",
     24         Network::Testnet => "testnet3",
     25         Network::Regtest => "regtest",
     26         Network::Signet => "signet",
     27         _ => unimplemented!(),
     28     }
     29 }
     30 
     31 /// Default rpc port <https://github.com/bitcoin/bitcoin/blob/master/share/examples/bitcoin.conf>
     32 pub fn rpc_port(network: Network) -> u16 {
     33     match network {
     34         Network::Bitcoin => 8332,
     35         Network::Testnet => 18332,
     36         Network::Regtest => 18443,
     37         Network::Signet => 38333,
     38         _ => unimplemented!(),
     39     }
     40 }
     41 
     42 /// Default bitcoin data_dir <https://github.com/bitcoin/bitcoin/blob/master/doc/bitcoin-conf.md>
     43 pub fn default_data_dir() -> PathBuf {
     44     if cfg!(target_os = "windows") {
     45         PathBuf::from_str(&std::env::var("APPDATA").unwrap())
     46             .unwrap()
     47             .join("Bitcoin")
     48     } else if cfg!(target_os = "linux") {
     49         PathBuf::from_str(&std::env::var("HOME").unwrap())
     50             .unwrap()
     51             .join(".bitcoin")
     52     } else if cfg!(target_os = "macos") {
     53         PathBuf::from_str(&std::env::var("HOME").unwrap())
     54             .unwrap()
     55             .join("Library/Application Support/Bitcoin")
     56     } else {
     57         unimplemented!("Only windows, linux or macos")
     58     }
     59 }
     60 
     61 /// Minimum dust amount to perform a transaction to a segwit address
     62 pub fn segwit_min_amount() -> Amount {
     63     // https://github.com/bitcoin/bitcoin/blob/master/src/policy/policy.cpp
     64     Amount::from_sat(294)
     65 }