add logs command to asb

swap/src/asb/command.rs

@@ -41,6 +41,17 @@ where
             env_config: env_config(testnet),
             cmd: Command::History,
         },
+        RawCommand::Logs { dir_path, redact } => Arguments {
+            testnet,
+            json,
+            disable_timestamp,
+            config_path: config_path(config, testnet)?,
+            env_config: env_config(testnet),
+            cmd: Command::Logs {
+                path: dir_path,
+                redact,
+            },
+        },
         RawCommand::WithdrawBtc { amount, address } => Arguments {
             testnet,
             json,
@@ -197,6 +208,10 @@ pub enum Command {
     },
     History,
     Config,
+    Logs {
+        path: Option<PathBuf>,
+        redact: bool,
+    },
     WithdrawBtc {
         amount: Option<Amount>,
         address: Address,
@@ -270,6 +285,16 @@ pub enum RawCommand {
     },
     #[structopt(about = "Prints swap-id and the state of each swap ever made.")]
     History,
+    #[structopt(about = "Prints all logging messages issued in the past.")]
+    Logs {
+        #[structopt(help = "Print the logs from this directory instead of the default one.")]
+        dir_path: Option<PathBuf>,
+        #[structopt(
+            help = "Redact swap-ids, Bitcoin and Monero addresses.",
+            long = "redact"
+        )]
+        redact: bool,
+    },
     #[structopt(about = "Prints the current config")]
     Config,
     #[structopt(about = "Allows withdrawing BTC from the internal Bitcoin wallet.")]

swap/src/bin/asb.rs

@@ -20,6 +20,7 @@ use libp2p::swarm::AddressScore;
 use libp2p::Swarm;
 use std::convert::TryInto;
 use std::env;
+use std::fs::read_dir;
 use std::net::{IpAddr, Ipv4Addr, SocketAddr};
 use std::sync::Arc;
 use structopt::clap;
@@ -29,7 +30,7 @@ use swap::asb::config::{
     initial_setup, query_user_for_initial_config, read_config, Config, ConfigNotInitialized,
 };
 use swap::asb::{cancel, punish, redeem, refund, safely_abort, EventLoop, Finality, KrakenRate};
-use swap::common::check_latest_version;
+use swap::common::{self, check_latest_version};
 use swap::database::{open_db, AccessMode};
 use swap::fs::system_data_dir;
 use swap::network::rendezvous::XmrBtcNamespace;
@@ -38,6 +39,8 @@ use swap::protocol::alice::{run, AliceState};
 use swap::seed::Seed;
 use swap::tor::AuthenticatedClient;
 use swap::{asb, bitcoin, kraken, monero, tor};
+use tokio::fs::File;
+use tokio::io::{AsyncBufReadExt, BufReader};
 use tracing_subscriber::filter::LevelFilter;
 
 const DEFAULT_WALLET_NAME: &str = "asb-wallet";
@@ -245,6 +248,31 @@ async fn main() -> Result<()> {
             let config_json = serde_json::to_string_pretty(&config)?;
             println!("{}", config_json);
         }
+        Command::Logs { path, redact } => {
+            // use provided directory of default one
+            let default_dir = system_data_dir()?.join("logs");
+            let logs_dir = path.unwrap_or(default_dir);
+
+            // go through each file and print it
+            let log_files = read_dir(&logs_dir)?;
+
+            for entry in log_files {
+                let file_name = entry?.path();
+                let file = File::open(&file_name).await?;
+                let buf_reader = BufReader::new(file);
+                let mut lines = buf_reader.lines();
+
+                println!("====reading log from file `{}`", &file_name.display());
+
+                // print each line, redacted if the flag is set
+                while let Some(line) = lines.next_line().await? {
+                    let line = if redact { common::redact(&line) } else { line };
+                    println!("{}", line);
+                }
+
+                println!("====no more log files found");
+            }
+        }
         Command::WithdrawBtc { amount, address } => {
             let bitcoin_wallet = init_bitcoin_wallet(&config, &seed, env_config).await?;
 

swap/src/proptest.rs

@@ -2,7 +2,7 @@ use proptest::prelude::*;
 
 pub mod ecdsa_fun {
     use super::*;
-    use ecdsa_fun::fun::{Point, Scalar, G};
+    use ::ecdsa_fun::fun::{Point, Scalar, G};
 
     pub fn point() -> impl Strategy<Value = Point> {
         scalar().prop_map(|mut scalar| Point::even_y_from_scalar_mul(G, &mut scalar).normalize())
@@ -17,8 +17,8 @@ pub mod ecdsa_fun {
 
 pub mod bitcoin {
     use super::*;
-    use bitcoin::util::bip32::ExtendedPrivKey;
-    use bitcoin::Network;
+    use ::bitcoin::util::bip32::ExtendedPrivKey;
+    use ::bitcoin::Network;
 
     pub fn extended_priv_key() -> impl Strategy<Value = ExtendedPrivKey> {
         prop::array::uniform8(0..255u8).prop_filter_map("invalid secret key generated", |bytes| {