369 lines
10 KiB
Rust
369 lines
10 KiB
Rust
// Copyright 2015-2017 Parity Technologies (UK) Ltd.
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// This file is part of Parity.
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// Parity is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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// Parity is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with Parity. If not, see <http://www.gnu.org/licenses/>.
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use std::fmt;
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use std::cmp::{Ord, PartialOrd, Ordering};
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use std::ops::Deref;
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use rustc_hex::{ToHex, FromHex};
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use serde::{Serialize, Deserialize, Serializer, Deserializer};
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use serde::de::{Visitor, Error as SerdeError};
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use ethkey::{Public, Secret, Signature};
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use util::{H256, Bytes};
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/// Serializable message hash.
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pub type SerializableMessageHash = SerializableH256;
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#[derive(Clone, Debug, Serialize, Deserialize)]
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/// Serializable shadow decryption result.
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pub struct SerializableEncryptedDocumentKeyShadow {
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/// Decrypted secret point. It is partially decrypted if shadow decrpytion was requested.
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pub decrypted_secret: SerializablePublic,
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/// Shared common point.
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pub common_point: SerializablePublic,
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/// If shadow decryption was requested: shadow decryption coefficients, encrypted with requestor public.
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pub decrypt_shadows: Vec<SerializableBytes>,
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}
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#[derive(Clone, Debug, PartialEq)]
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/// Serializable Bytes.
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pub struct SerializableBytes(pub Bytes);
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impl<T> From<T> for SerializableBytes where Bytes: From<T> {
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fn from(s: T) -> SerializableBytes {
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SerializableBytes(s.into())
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}
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}
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impl Into<Bytes> for SerializableBytes {
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fn into(self) -> Bytes {
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self.0
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}
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}
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impl Deref for SerializableBytes {
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type Target = Bytes;
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fn deref(&self) -> &Bytes {
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&self.0
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}
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}
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impl Serialize for SerializableBytes {
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fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error> where S: Serializer {
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let mut serialized = "0x".to_owned();
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serialized.push_str(self.0.to_hex().as_ref());
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serializer.serialize_str(serialized.as_ref())
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}
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}
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impl<'a> Deserialize<'a> for SerializableBytes {
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fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
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where D: Deserializer<'a>
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{
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let s = String::deserialize(deserializer)?;
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if s.len() >= 2 && &s[0..2] == "0x" && s.len() & 1 == 0 {
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let data = s[2..].from_hex().map_err(SerdeError::custom)?;
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Ok(SerializableBytes(data))
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} else {
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Err(SerdeError::custom("invalid format"))
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}
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}
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}
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#[derive(Clone, Debug)]
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/// Serializable Signature.
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pub struct SerializableSignature(pub Signature);
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impl<T> From<T> for SerializableSignature where Signature: From<T> {
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fn from(s: T) -> SerializableSignature {
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SerializableSignature(s.into())
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}
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}
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impl Into<Signature> for SerializableSignature {
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fn into(self) -> Signature {
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self.0
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}
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}
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impl Deref for SerializableSignature {
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type Target = Signature;
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fn deref(&self) -> &Signature {
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&self.0
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}
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}
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impl Serialize for SerializableSignature {
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fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error> where S: Serializer {
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let mut serialized = "0x".to_owned();
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serialized.push_str(self.0.to_hex().as_ref());
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serializer.serialize_str(serialized.as_ref())
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}
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}
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impl<'a> Deserialize<'a> for SerializableSignature {
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fn deserialize<D>(deserializer: D) -> Result<Self, D::Error> where D: Deserializer<'a> {
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struct HashVisitor;
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impl<'b> Visitor<'b> for HashVisitor {
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type Value = SerializableSignature;
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fn expecting(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
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write!(formatter, "a hex-encoded Signature")
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}
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fn visit_str<E>(self, value: &str) -> Result<Self::Value, E> where E: SerdeError {
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if value.len() >= 2 && &value[0..2] == "0x" && value.len() & 1 == 0 {
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value[2..].parse().map(|s| SerializableSignature(s)).map_err(SerdeError::custom)
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} else {
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Err(SerdeError::custom("invalid format"))
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}
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}
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fn visit_string<E>(self, value: String) -> Result<Self::Value, E> where E: SerdeError {
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self.visit_str(value.as_ref())
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}
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}
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deserializer.deserialize_any(HashVisitor)
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}
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}
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#[derive(Clone, Debug)]
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/// Serializable H256.
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pub struct SerializableH256(pub H256);
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impl<T> From<T> for SerializableH256 where H256: From<T> {
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fn from(s: T) -> SerializableH256 {
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SerializableH256(s.into())
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}
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}
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impl Into<H256> for SerializableH256 {
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fn into(self) -> H256 {
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self.0
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}
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}
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impl Deref for SerializableH256 {
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type Target = H256;
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fn deref(&self) -> &H256 {
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&self.0
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}
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}
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impl Serialize for SerializableH256 {
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fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error> where S: Serializer {
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let mut serialized = "0x".to_owned();
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serialized.push_str(self.0.to_hex().as_ref());
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serializer.serialize_str(serialized.as_ref())
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}
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}
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impl<'a> Deserialize<'a> for SerializableH256 {
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fn deserialize<D>(deserializer: D) -> Result<Self, D::Error> where D: Deserializer<'a> {
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struct HashVisitor;
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impl<'b> Visitor<'b> for HashVisitor {
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type Value = SerializableH256;
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fn expecting(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
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write!(formatter, "a hex-encoded H256")
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}
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fn visit_str<E>(self, value: &str) -> Result<Self::Value, E> where E: SerdeError {
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if value.len() >= 2 && &value[0..2] == "0x" && value.len() & 1 == 0 {
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value[2..].parse().map(|s| SerializableH256(s)).map_err(SerdeError::custom)
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} else {
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Err(SerdeError::custom("invalid format"))
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}
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}
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fn visit_string<E>(self, value: String) -> Result<Self::Value, E> where E: SerdeError {
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self.visit_str(value.as_ref())
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}
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}
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deserializer.deserialize_any(HashVisitor)
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}
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}
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#[derive(Clone, Debug)]
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/// Serializable EC scalar/secret key.
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pub struct SerializableSecret(pub Secret);
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impl<T> From<T> for SerializableSecret where Secret: From<T> {
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fn from(s: T) -> SerializableSecret {
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SerializableSecret(s.into())
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}
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}
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impl Into<Secret> for SerializableSecret {
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fn into(self) -> Secret {
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self.0
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}
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}
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impl Deref for SerializableSecret {
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type Target = Secret;
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fn deref(&self) -> &Secret {
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&self.0
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}
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}
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impl Serialize for SerializableSecret {
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fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error> where S: Serializer {
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let mut serialized = "0x".to_owned();
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serialized.push_str(self.0.to_hex().as_ref());
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serializer.serialize_str(serialized.as_ref())
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}
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}
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impl<'a> Deserialize<'a> for SerializableSecret {
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fn deserialize<D>(deserializer: D) -> Result<Self, D::Error> where D: Deserializer<'a> {
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struct HashVisitor;
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impl<'b> Visitor<'b> for HashVisitor {
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type Value = SerializableSecret;
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fn expecting(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
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write!(formatter, "a hex-encoded EC scalar")
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}
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fn visit_str<E>(self, value: &str) -> Result<Self::Value, E> where E: SerdeError {
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if value.len() >= 2 && &value[0..2] == "0x" && value.len() & 1 == 0 {
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value[2..].parse().map(|s| SerializableSecret(s)).map_err(SerdeError::custom)
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} else {
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Err(SerdeError::custom("invalid format"))
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}
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}
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fn visit_string<E>(self, value: String) -> Result<Self::Value, E> where E: SerdeError {
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self.visit_str(value.as_ref())
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}
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}
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deserializer.deserialize_any(HashVisitor)
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}
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}
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#[derive(Clone, Debug)]
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/// Serializable EC point/public key.
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pub struct SerializablePublic(pub Public);
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impl<T> From<T> for SerializablePublic where Public: From<T> {
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fn from(p: T) -> SerializablePublic {
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SerializablePublic(p.into())
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}
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}
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impl Into<Public> for SerializablePublic {
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fn into(self) -> Public {
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self.0
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}
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}
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impl Deref for SerializablePublic {
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type Target = Public;
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fn deref(&self) -> &Public {
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&self.0
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}
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}
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impl Eq for SerializablePublic { }
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impl PartialEq for SerializablePublic {
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fn eq(&self, other: &SerializablePublic) -> bool {
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self.0.eq(&other.0)
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}
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}
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impl Ord for SerializablePublic {
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fn cmp(&self, other: &SerializablePublic) -> Ordering {
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self.0.cmp(&other.0)
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}
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}
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impl PartialOrd for SerializablePublic {
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fn partial_cmp(&self, other: &SerializablePublic) -> Option<Ordering> {
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self.0.partial_cmp(&other.0)
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}
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}
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impl Serialize for SerializablePublic {
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fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error> where S: Serializer {
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let mut serialized = "0x".to_owned();
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serialized.push_str(self.0.to_hex().as_ref());
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serializer.serialize_str(serialized.as_ref())
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}
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}
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impl<'a> Deserialize<'a> for SerializablePublic {
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fn deserialize<D>(deserializer: D) -> Result<Self, D::Error> where D: Deserializer<'a> {
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struct HashVisitor;
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impl<'b> Visitor<'b> for HashVisitor {
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type Value = SerializablePublic;
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fn expecting(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
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write!(formatter, "a hex-encoded EC point")
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}
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fn visit_str<E>(self, value: &str) -> Result<Self::Value, E> where E: SerdeError {
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if value.len() >= 2 && &value[0..2] == "0x" && value.len() & 1 == 0 {
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value[2..].parse().map(|s| SerializablePublic(s)).map_err(SerdeError::custom)
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} else {
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Err(SerdeError::custom("invalid format"))
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}
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}
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fn visit_string<E>(self, value: String) -> Result<Self::Value, E> where E: SerdeError {
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self.visit_str(value.as_ref())
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}
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}
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deserializer.deserialize_any(HashVisitor)
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}
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}
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#[cfg(test)]
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mod tests {
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use serde_json;
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use super::{SerializableBytes, SerializablePublic};
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#[test]
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fn serialize_and_deserialize_bytes() {
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let bytes = SerializableBytes(vec![1, 2, 3, 4]);
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let bytes_serialized = serde_json::to_string(&bytes).unwrap();
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assert_eq!(&bytes_serialized, r#""0x01020304""#);
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let bytes_deserialized: SerializableBytes = serde_json::from_str(&bytes_serialized).unwrap();
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assert_eq!(bytes_deserialized, bytes);
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}
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#[test]
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fn serialize_and_deserialize_public() {
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let public = SerializablePublic("cac6c205eb06c8308d65156ff6c862c62b000b8ead121a4455a8ddeff7248128d895692136f240d5d1614dc7cc4147b1bd584bd617e30560bb872064d09ea325".parse().unwrap());
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let public_serialized = serde_json::to_string(&public).unwrap();
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assert_eq!(&public_serialized, r#""0xcac6c205eb06c8308d65156ff6c862c62b000b8ead121a4455a8ddeff7248128d895692136f240d5d1614dc7cc4147b1bd584bd617e30560bb872064d09ea325""#);
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let public_deserialized: SerializablePublic = serde_json::from_str(&public_serialized).unwrap();
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assert_eq!(public_deserialized, public);
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}
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}
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