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solana-with-rpc-optimizations
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Add generic is_parsable() input validator. 

Allow input validators to accept &str, &String and String parameters.
This commit is contained in:
Kristofer Peterson 2020-06-15 14:37:53 +01:00 committed by Michael Vines
parent 184030d6e8
commit daa2e6363f
1 changed files with 116 additions and 50 deletions
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166
clap-utils/src/input_validators.rs
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@ -6,50 +6,86 @@ use solana_sdk::{
pubkey::Pubkey,
signature::{read_keypair_file, Signature},
};
use std::fmt::Display;
use std::str::FromStr;
fn is_parsable_generic<U, T>(string: T) -> Result<(), String>
where
T: AsRef<str> + Display,
U: FromStr,
U::Err: Display,
{
string
.as_ref()
.parse::<U>()
.map(|_| ())
.map_err(|err| format!("error parsing '{}': {}", string, err))
}
// Return an error if string cannot be parsed as type T.
// Takes a String to avoid second type parameter when used as a clap validator
pub fn is_parsable<T>(string: String) -> Result<(), String>
where
T: FromStr,
T::Err: Display,
{
is_parsable_generic::<T, String>(string)
}
// Return an error if a pubkey cannot be parsed.
pub fn is_pubkey(string: String) -> Result<(), String> {
match string.parse::<Pubkey>() {
Ok(_) => Ok(()),
Err(err) => Err(format!("{}", err)),
}
pub fn is_pubkey<T>(string: T) -> Result<(), String>
where
T: AsRef<str> + Display,
{
is_parsable_generic::<Pubkey, _>(string)
}
// Return an error if a hash cannot be parsed.
pub fn is_hash(string: String) -> Result<(), String> {
match string.parse::<Hash>() {
Ok(_) => Ok(()),
Err(err) => Err(format!("{}", err)),
}
pub fn is_hash<T>(string: T) -> Result<(), String>
where
T: AsRef<str> + Display,
{
is_parsable_generic::<Hash, _>(string)
}
// Return an error if a keypair file cannot be parsed.
pub fn is_keypair(string: String) -> Result<(), String> {
read_keypair_file(&string)
pub fn is_keypair<T>(string: T) -> Result<(), String>
where
T: AsRef<str> + Display,
{
read_keypair_file(string.as_ref())
.map(|_| ())
.map_err(|err| format!("{}", err))
}
// Return an error if a keypair file cannot be parsed
pub fn is_keypair_or_ask_keyword(string: String) -> Result<(), String> {
if string.as_str() == ASK_KEYWORD {
pub fn is_keypair_or_ask_keyword<T>(string: T) -> Result<(), String>
where
T: AsRef<str> + Display,
{
if string.as_ref() == ASK_KEYWORD {
return Ok(());
}
read_keypair_file(&string)
read_keypair_file(string.as_ref())
.map(|_| ())
.map_err(|err| format!("{}", err))
}
// Return an error if string cannot be parsed as pubkey string or keypair file location
pub fn is_pubkey_or_keypair(string: String) -> Result<(), String> {
is_pubkey(string.clone()).or_else(|_| is_keypair(string))
pub fn is_pubkey_or_keypair<T>(string: T) -> Result<(), String>
where
T: AsRef<str> + Display,
{
is_pubkey(string.as_ref()).or_else(|_| is_keypair(string))
}
// Return an error if string cannot be parsed as a pubkey string, or a valid Signer that can
// produce a pubkey()
pub fn is_valid_pubkey(string: String) -> Result<(), String> {
match parse_keypair_path(&string) {
pub fn is_valid_pubkey<T>(string: T) -> Result<(), String>
where
T: AsRef<str> + Display,
{
match parse_keypair_path(string.as_ref()) {
KeypairUrl::Filepath(path) => is_keypair(path),
_ => Ok(()),
}
@ -63,13 +99,19 @@ pub fn is_valid_pubkey(string: String) -> Result<(), String> {
// when paired with an offline `--signer` argument to provide a Presigner (pubkey + signature).
// Clap validators can't check multiple fields at once, so the verification that a `--signer` is
// also provided and correct happens in parsing, not in validation.
pub fn is_valid_signer(string: String) -> Result<(), String> {
pub fn is_valid_signer<T>(string: T) -> Result<(), String>
where
T: AsRef<str> + Display,
{
is_valid_pubkey(string)
}
// Return an error if string cannot be parsed as pubkey=signature string
pub fn is_pubkey_sig(string: String) -> Result<(), String> {
let mut signer = string.split('=');
pub fn is_pubkey_sig<T>(string: T) -> Result<(), String>
where
T: AsRef<str> + Display,
{
let mut signer = string.as_ref().split('=');
match Pubkey::from_str(
signer
.next()
@ -90,8 +132,11 @@ pub fn is_pubkey_sig(string: String) -> Result<(), String> {
}
// Return an error if a url cannot be parsed.
pub fn is_url(string: String) -> Result<(), String> {
match url::Url::parse(&string) {
pub fn is_url<T>(string: T) -> Result<(), String>
where
T: AsRef<str> + Display,
{
match url::Url::parse(string.as_ref()) {
Ok(url) => {
if url.has_host() {
Ok(())
@ -103,20 +148,26 @@ pub fn is_url(string: String) -> Result<(), String> {
}
}
pub fn is_slot(slot: String) -> Result<(), String> {
slot.parse::<Slot>()
.map(|_| ())
.map_err(|e| format!("{}", e))
pub fn is_slot<T>(slot: T) -> Result<(), String>
where
T: AsRef<str> + Display,
{
is_parsable_generic::<Slot, _>(slot)
}
pub fn is_port(port: String) -> Result<(), String> {
port.parse::<u16>()
.map(|_| ())
.map_err(|e| format!("{}", e))
pub fn is_port<T>(port: T) -> Result<(), String>
where
T: AsRef<str> + Display,
{
is_parsable_generic::<u16, _>(port)
}
pub fn is_valid_percentage(percentage: String) -> Result<(), String> {
pub fn is_valid_percentage<T>(percentage: T) -> Result<(), String>
where
T: AsRef<str> + Display,
{
percentage
.as_ref()
.parse::<u8>()
.map_err(|e| {
format!(
@ -136,8 +187,11 @@ pub fn is_valid_percentage(percentage: String) -> Result<(), String> {
})
}
pub fn is_amount(amount: String) -> Result<(), String> {
if amount.parse::<u64>().is_ok() || amount.parse::<f64>().is_ok() {
pub fn is_amount<T>(amount: T) -> Result<(), String>
where
T: AsRef<str> + Display,
{
if amount.as_ref().parse::<u64>().is_ok() || amount.as_ref().parse::<f64>().is_ok() {
Ok(())
} else {
Err(format!(
@ -147,8 +201,14 @@ pub fn is_amount(amount: String) -> Result<(), String> {
}
}
pub fn is_amount_or_all(amount: String) -> Result<(), String> {
if amount.parse::<u64>().is_ok() || amount.parse::<f64>().is_ok() || amount == "ALL" {
pub fn is_amount_or_all<T>(amount: T) -> Result<(), String>
where
T: AsRef<str> + Display,
{
if amount.as_ref().parse::<u64>().is_ok()
|| amount.as_ref().parse::<f64>().is_ok()
|| amount.as_ref() == "ALL"
{
Ok(())
} else {
Err(format!(
@ -158,14 +218,20 @@ pub fn is_amount_or_all(amount: String) -> Result<(), String> {
}
}
pub fn is_rfc3339_datetime(value: String) -> Result<(), String> {
DateTime::parse_from_rfc3339(&value)
pub fn is_rfc3339_datetime<T>(value: T) -> Result<(), String>
where
T: AsRef<str> + Display,
{
DateTime::parse_from_rfc3339(value.as_ref())
.map(|_| ())
.map_err(|e| format!("{}", e))
}
pub fn is_derivation(value: String) -> Result<(), String> {
let value = value.replace("'", "");
pub fn is_derivation<T>(value: T) -> Result<(), String>
where
T: AsRef<str> + Display,
{
let value = value.as_ref().replace("'", "");
let mut parts = value.split('/');
let account = parts.next().unwrap();
account
@ -197,14 +263,14 @@ mod tests {
#[test]
fn test_is_derivation() {
assert_eq!(is_derivation("2".to_string()), Ok(()));
assert_eq!(is_derivation("0".to_string()), Ok(()));
assert_eq!(is_derivation("65537".to_string()), Ok(()));
assert_eq!(is_derivation("0/2".to_string()), Ok(()));
assert_eq!(is_derivation("0'/2'".to_string()), Ok(()));
assert!(is_derivation("a".to_string()).is_err());
assert!(is_derivation("4294967296".to_string()).is_err());
assert!(is_derivation("a/b".to_string()).is_err());
assert!(is_derivation("0/4294967296".to_string()).is_err());
assert_eq!(is_derivation("2"), Ok(()));
assert_eq!(is_derivation("0"), Ok(()));
assert_eq!(is_derivation("65537"), Ok(()));
assert_eq!(is_derivation("0/2"), Ok(()));
assert_eq!(is_derivation("0'/2'"), Ok(()));
assert!(is_derivation("a").is_err());
assert!(is_derivation("4294967296").is_err());
assert!(is_derivation("a/b").is_err());
assert!(is_derivation("0/4294967296").is_err());
}
}