Avoid unnecessary panic of some wallet commands (#1893)

Replace wallet command panic with map_err or unwrap_or_else
This commit is contained in:
Gary Yu 2018-11-01 04:26:17 +08:00 committed by Ignotus Peverell
parent d51522a9cd
commit e8f4c47178

View file

@ -28,6 +28,7 @@ use clap::ArgMatches;
use api::TLSConfig;
use config::GlobalWalletConfig;
use core::{core, global};
use grin_wallet::libwallet::ErrorKind;
use grin_wallet::{self, controller, display, libwallet};
use grin_wallet::{
HTTPWalletClient, LMDBBackend, WalletBackend, WalletConfig, WalletInst, WalletSeed,
@ -123,13 +124,15 @@ pub fn wallet_command(wallet_args: &ArgMatches, config: GlobalWalletConfig) {
return;
}
let passphrase = wallet_args
.value_of("pass")
.expect("Failed to read passphrase.");
let passphrase = wallet_args.value_of("pass").unwrap_or_else(|| {
error!("Failed to read passphrase.");
exit(1);
});
let account = wallet_args
.value_of("account")
.expect("Failed to read account.");
let account = wallet_args.value_of("account").unwrap_or_else(|| {
error!("Failed to read account.");
exit(1);
});
// Handle listener startup commands
{
@ -148,7 +151,10 @@ pub fn wallet_command(wallet_args: &ArgMatches, config: GlobalWalletConfig) {
wallet_config
.tls_certificate_key
.clone()
.expect("Private key for certificate is not set"),
.unwrap_or_else(|| {
error!("Private key for certificate is not set");
exit(1);
}),
)),
};
match wallet_args.subcommand() {
@ -158,20 +164,22 @@ pub fn wallet_command(wallet_args: &ArgMatches, config: GlobalWalletConfig) {
}
controller::foreign_listener(wallet, &wallet_config.api_listen_addr(), tls_conf)
.unwrap_or_else(|e| {
panic!(
error!(
"Error creating wallet listener: {:?} Config: {:?}",
e, wallet_config
)
);
exit(1);
});
}
("owner_api", Some(_api_args)) => {
// TLS is disabled because we bind to localhost
controller::owner_listener(wallet, "127.0.0.1:13420", api_secret, None)
.unwrap_or_else(|e| {
panic!(
error!(
"Error creating wallet api listener: {:?} Config: {:?}",
e, wallet_config
)
);
exit(1);
});
}
("web", Some(_api_args)) => {
@ -179,10 +187,11 @@ pub fn wallet_command(wallet_args: &ArgMatches, config: GlobalWalletConfig) {
start_webwallet_server();
controller::owner_listener(wallet, "127.0.0.1:13420", api_secret, tls_conf)
.unwrap_or_else(|e| {
panic!(
error!(
"Error creating wallet api listener: {:?} Config: {:?}",
e, wallet_config
)
);
exit(1);
});
}
_ => {}
@ -209,7 +218,8 @@ pub fn wallet_command(wallet_args: &ArgMatches, config: GlobalWalletConfig) {
Ok(())
});
if res.is_err() {
panic!("Error listing accounts: {}", res.unwrap_err());
error!("Error listing accounts: {}", res.unwrap_err());
exit(1);
}
} else {
let label = create.unwrap();
@ -228,30 +238,53 @@ pub fn wallet_command(wallet_args: &ArgMatches, config: GlobalWalletConfig) {
Ok(())
}
("send", Some(send_args)) => {
let amount = send_args
.value_of("amount")
.expect("Amount to send required");
let amount = core::amount_from_hr_string(amount)
.expect("Could not parse amount as a number with optional decimal point.");
let amount = send_args.value_of("amount").unwrap_or_else(|| {
error!("Amount to send required");
exit(1);
});
let amount = core::amount_from_hr_string(amount).map_err(|e| {
ErrorKind::GenericError(format!(
"Could not parse amount as a number with optional decimal point. e={:?}",
e
))
})?;
let minimum_confirmations: u64 = send_args
.value_of("minimum_confirmations")
.unwrap()
.parse()
.expect("Could not parse minimum_confirmations as a whole number.");
let selection_strategy = send_args
.value_of("selection_strategy")
.expect("Selection strategy required");
let method = send_args
.value_of("method")
.expect("Payment method required");
let dest = send_args
.value_of("dest")
.expect("Destination wallet address required");
.unwrap_or_else(|| {
error!("Minimum confirmations to send required");
exit(1);
}).parse()
.map_err(|e| {
ErrorKind::GenericError(format!(
"Could not parse minimum_confirmations as a whole number. e={:?}",
e
))
})?;
let selection_strategy =
send_args.value_of("selection_strategy").unwrap_or_else(|| {
error!("Selection strategy required");
exit(1);
});
let method = send_args.value_of("method").unwrap_or_else(|| {
error!("Payment method required");
exit(1);
});
let dest = send_args.value_of("dest").unwrap_or_else(|| {
error!("Destination wallet address required");
exit(1);
});
let change_outputs = send_args
.value_of("change_outputs")
.unwrap()
.parse()
.expect("Failed to parse number of change outputs.");
.unwrap_or_else(|| {
error!("Change outputs required");
exit(1);
}).parse()
.map_err(|e| {
ErrorKind::GenericError(format!(
"Failed to parse number of change outputs. e={:?}",
e
))
})?;
let fluff = send_args.is_present("fluff");
let max_outputs = 500;
if method == "http" {
@ -286,7 +319,7 @@ pub fn wallet_command(wallet_args: &ArgMatches, config: GlobalWalletConfig) {
error!("Backtrace: {}", e.backtrace().unwrap());
}
};
panic!();
exit(1);
}
};
let result = api.post_tx(&slate, fluff);
@ -305,7 +338,7 @@ pub fn wallet_command(wallet_args: &ArgMatches, config: GlobalWalletConfig) {
"HTTP Destination should start with http://: or https://: {}",
dest
);
panic!();
exit(1);
}
} else if method == "file" {
api.send_tx(
@ -316,18 +349,19 @@ pub fn wallet_command(wallet_args: &ArgMatches, config: GlobalWalletConfig) {
max_outputs,
change_outputs,
selection_strategy == "all",
).expect("Send failed");
).map_err(|e| ErrorKind::GenericError(format!("Send failed. e={:?}", e)))?;
Ok(())
} else {
error!("unsupported payment method: {}", method);
panic!();
exit(1);
}
}
("receive", Some(send_args)) => {
let mut receive_result: Result<(), grin_wallet::libwallet::Error> = Ok(());
let tx_file = send_args
.value_of("input")
.expect("Transaction file required");
let tx_file = send_args.value_of("input").unwrap_or_else(|| {
error!("Transaction file required");
exit(1);
});
if !Path::new(tx_file).is_file() {
error!("File {} not found.", { tx_file });
exit(1);
@ -348,9 +382,10 @@ pub fn wallet_command(wallet_args: &ArgMatches, config: GlobalWalletConfig) {
}
("finalize", Some(send_args)) => {
let fluff = send_args.is_present("fluff");
let tx_file = send_args
.value_of("input")
.expect("Receiver's transaction file required");
let tx_file = send_args.value_of("input").unwrap_or_else(|| {
error!("Receiver's transaction file required");
exit(1);
});
if !Path::new(tx_file).is_file() {
error!("File {} not found.", { tx_file });
exit(1);
@ -393,26 +428,24 @@ pub fn wallet_command(wallet_args: &ArgMatches, config: GlobalWalletConfig) {
Ok(())
}
("info", Some(_)) => {
let (validated, wallet_info) =
api.retrieve_summary_info(true).unwrap_or_else(|e| {
panic!(
let (validated, wallet_info) = api.retrieve_summary_info(true).map_err(|e| {
ErrorKind::GenericError(format!(
"Error getting wallet info: {:?} Config: {:?}",
e, wallet_config
)
});
))
})?;
display::info(account, &wallet_info, validated);
Ok(())
}
("outputs", Some(_)) => {
let (height, _) = api.node_height()?;
let (validated, outputs) = api.retrieve_outputs(show_spent, true, None)?;
let _res =
display::outputs(account, height, validated, outputs).unwrap_or_else(|e| {
panic!(
display::outputs(account, height, validated, outputs).map_err(|e| {
ErrorKind::GenericError(format!(
"Error getting wallet outputs: {:?} Config: {:?}",
e, wallet_config
)
});
))
})?;
Ok(())
}
("txs", Some(txs_args)) => {
@ -420,46 +453,48 @@ pub fn wallet_command(wallet_args: &ArgMatches, config: GlobalWalletConfig) {
None => None,
Some(tx) => match tx.parse() {
Ok(t) => Some(t),
Err(_) => panic!("Unable to parse argument 'id' as a number"),
Err(_) => {
error!("Unable to parse argument 'id' as a number");
exit(1);
}
},
};
let (height, _) = api.node_height()?;
let (validated, txs) = api.retrieve_txs(true, tx_id)?;
let include_status = !tx_id.is_some();
let _res = display::txs(account, height, validated, txs, include_status)
.unwrap_or_else(|e| {
panic!(
display::txs(account, height, validated, txs, include_status).map_err(|e| {
ErrorKind::GenericError(format!(
"Error getting wallet outputs: {} Config: {:?}",
e, wallet_config
)
});
))
})?;
// if given a particular transaction id, also get and display associated
// inputs/outputs
if tx_id.is_some() {
let (_, outputs) = api.retrieve_outputs(true, false, tx_id)?;
let _res = display::outputs(account, height, validated, outputs)
.unwrap_or_else(|e| {
panic!(
display::outputs(account, height, validated, outputs).map_err(|e| {
ErrorKind::GenericError(format!(
"Error getting wallet outputs: {} Config: {:?}",
e, wallet_config
)
});
))
})?;
};
Ok(())
}
("repost", Some(repost_args)) => {
let tx_id: u32 = match repost_args.value_of("id") {
None => {
let tx_id = repost_args
.value_of("id")
.unwrap_or_else(|| {
error!("Transaction of a completed but unconfirmed transaction required (specify with --id=[id])");
panic!();
}
Some(tx) => match tx.parse() {
Ok(t) => t,
Err(_) => {
panic!("Unable to parse argument 'id' as a number");
}
},
};
exit(1);
})
.parse().map_err(|e| {
ErrorKind::GenericError(format!(
"Unable to parse argument 'id' as a number. e={:?}",
e
))
})?;
let dump_file = repost_args.value_of("dumpfile");
let fluff = repost_args.is_present("fluff");
match dump_file {
@ -494,8 +529,13 @@ pub fn wallet_command(wallet_args: &ArgMatches, config: GlobalWalletConfig) {
("cancel", Some(tx_args)) => {
let tx_id = tx_args
.value_of("id")
.expect("'id' argument (-i) is required.");
let tx_id = tx_id.parse().expect("Could not parse id parameter.");
.unwrap_or_else(|| {
error!("'id' argument (-i) is required.");
exit(1);
}).parse()
.map_err(|e| {
ErrorKind::GenericError(format!("Could not parse id parameter. e={:?}", e))
})?;
let result = api.cancel_tx(tx_id);
match result {
Ok(_) => {
@ -522,7 +562,10 @@ pub fn wallet_command(wallet_args: &ArgMatches, config: GlobalWalletConfig) {
}
}
}
_ => panic!("Unknown wallet command, use 'grin help wallet' for details"),
_ => {
error!("Unknown wallet command, use 'grin help wallet' for details");
exit(1);
}
}
});
// we need to give log output a chance to catch up before exiting