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rust-secp256k1-unsafe-fast
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Implement hex human-readable serde for PublicKey

This commit is contained in:
Steven Roose 2019-07-23 11:56:40 +02:00
parent ccac3ead25
commit 0f25474805
No known key found for this signature in database
GPG Key ID: 2F2A88D7F8D68E87
1 changed files with 58 additions and 5 deletions
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61
src/key.rs
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@ -366,17 +366,66 @@ impl From<ffi::PublicKey> for PublicKey {
#[cfg(feature = "serde")]
impl ::serde::Serialize for PublicKey {
fn serialize<S: ::serde::Serializer>(&self, s: S) -> Result<S::Ok, S::Error> {
if s.is_human_readable() {
s.collect_str(self)
} else {
s.serialize_bytes(&self.serialize())
}
}
}
#[cfg(feature = "serde")]
impl<'de> ::serde::Deserialize<'de> for PublicKey {
fn deserialize<D: ::serde::Deserializer<'de>>(d: D) -> Result<PublicKey, D::Error> {
use ::serde::de::Error;
if d.is_human_readable() {
struct HexVisitor;
let sl: &[u8] = ::serde::Deserialize::deserialize(d)?;
PublicKey::from_slice(sl).map_err(D::Error::custom)
impl<'de> ::serde::de::Visitor<'de> for HexVisitor {
type Value = PublicKey;
fn expecting(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
formatter.write_str("an ASCII hex string")
}
fn visit_bytes<E>(self, v: &[u8]) -> Result<Self::Value, E>
where
E: ::serde::de::Error,
{
if let Ok(hex) = str::from_utf8(v) {
str::FromStr::from_str(hex).map_err(E::custom)
} else {
Err(E::invalid_value(::serde::de::Unexpected::Bytes(v), &self))
}
}
fn visit_str<E>(self, v: &str) -> Result<Self::Value, E>
where
E: ::serde::de::Error,
{
str::FromStr::from_str(v).map_err(E::custom)
}
}
d.deserialize_str(HexVisitor)
} else {
struct BytesVisitor;
impl<'de> ::serde::de::Visitor<'de> for BytesVisitor {
type Value = PublicKey;
fn expecting(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
formatter.write_str("a bytestring")
}
fn visit_bytes<E>(self, v: &[u8]) -> Result<Self::Value, E>
where
E: ::serde::de::Error,
{
PublicKey::from_slice(v).map_err(E::custom)
}
}
d.deserialize_bytes(BytesVisitor)
}
}
}
@ -745,6 +794,9 @@ mod test {
0x06, 0x83, 0x7f, 0x30, 0xaa, 0x0c, 0xd0, 0x54,
0x4a, 0xc8, 0x87, 0xfe, 0x91, 0xdd, 0xd1, 0x66,
];
static PK_STR: &'static str = "\
0218845781f631c48f1c9709e23092067d06837f30aa0cd0544ac887fe91ddd166\
";
let s = Secp256k1::new();
@ -753,6 +805,7 @@ mod test {
assert_tokens(&sk.compact(), &[Token::BorrowedBytes(&SK_BYTES[..])]);
assert_tokens(&sk.readable(), &[Token::BorrowedStr(SK_STR)]);
assert_tokens(&pk, &[Token::BorrowedBytes(&PK_BYTES[..])]);
assert_tokens(&pk.compact(), &[Token::BorrowedBytes(&PK_BYTES[..])]);
assert_tokens(&pk.readable(), &[Token::BorrowedStr(PK_STR)]);
}
}