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use std::fmt::{self, Debug, Formatter};
pub use structured_data::StructuredData;
pub use immutable_data::ImmutableData;
pub use plain_data::PlainData;
pub use priv_appendable_data::PrivAppendableData;
pub use pub_appendable_data::PubAppendableData;
use xor_name::XorName;
use rust_sodium::crypto::sign;
pub const NO_OWNER_PUB_KEY: sign::PublicKey = sign::PublicKey([0; sign::PUBLICKEYBYTES]);
pub fn verify_detached(sig: &sign::Signature, data: &[u8], pub_key: &sign::PublicKey) -> bool {
*pub_key != NO_OWNER_PUB_KEY && sign::verify_detached(sig, data, pub_key)
}
#[derive(Hash, PartialEq, Eq, PartialOrd, Ord, Clone, RustcEncodable, RustcDecodable)]
pub enum Data {
Structured(StructuredData),
Immutable(ImmutableData),
Plain(PlainData),
PubAppendable(PubAppendableData),
PrivAppendable(PrivAppendableData),
}
impl Data {
pub fn name(&self) -> &XorName {
match *self {
Data::Structured(ref data) => data.name(),
Data::Immutable(ref data) => data.name(),
Data::Plain(ref data) => data.name(),
Data::PubAppendable(ref data) => data.name(),
Data::PrivAppendable(ref data) => data.name(),
}
}
pub fn identifier(&self) -> DataIdentifier {
match *self {
Data::Structured(ref data) => data.identifier(),
Data::Immutable(ref data) => data.identifier(),
Data::Plain(ref data) => data.identifier(),
Data::PubAppendable(ref data) => data.identifier(),
Data::PrivAppendable(ref data) => data.identifier(),
}
}
pub fn validate_size(&self) -> bool {
match *self {
Data::Immutable(ref data) => data.validate_size(),
Data::PrivAppendable(ref data) => data.validate_size(),
Data::PubAppendable(ref data) => data.validate_size(),
Data::Structured(ref data) => data.validate_size(),
_ => unimplemented!(),
}
}
}
#[derive(Hash, Debug, PartialEq, Eq, PartialOrd, Ord, Clone, Copy, RustcEncodable, RustcDecodable)]
pub enum DataIdentifier {
Structured(XorName, u64),
Immutable(XorName),
Plain(XorName),
PubAppendable(XorName),
PrivAppendable(XorName),
}
impl Debug for Data {
fn fmt(&self, formatter: &mut Formatter) -> fmt::Result {
match *self {
Data::Structured(ref data) => data.fmt(formatter),
Data::Immutable(ref data) => data.fmt(formatter),
Data::Plain(ref data) => data.fmt(formatter),
Data::PubAppendable(ref data) => data.fmt(formatter),
Data::PrivAppendable(ref data) => data.fmt(formatter),
}
}
}
impl DataIdentifier {
pub fn name(&self) -> &XorName {
match *self {
DataIdentifier::Structured(ref name, _) |
DataIdentifier::Immutable(ref name) |
DataIdentifier::Plain(ref name) |
DataIdentifier::PubAppendable(ref name) |
DataIdentifier::PrivAppendable(ref name) => name,
}
}
}
#[cfg(test)]
mod test {
extern crate rand;
use super::*;
use rust_sodium::crypto::sign;
use rust_sodium::crypto::hash::sha256;
use xor_name::XorName;
#[test]
fn data_name() {
let keys = sign::gen_keypair();
let owner_keys = vec![keys.0];
match StructuredData::new(0,
rand::random(),
0,
vec![],
owner_keys.clone(),
vec![],
Some(&keys.1)) {
Ok(structured_data) => {
assert_eq!(structured_data.clone().name(),
Data::Structured(structured_data.clone()).name());
assert_eq!(DataIdentifier::Structured(*structured_data.name(),
structured_data.get_type_tag()),
structured_data.identifier());
}
Err(error) => panic!("Error: {:?}", error),
}
let value = "immutable data value".to_owned().into_bytes();
let immutable_data = ImmutableData::new(value);
assert_eq!(immutable_data.name(),
Data::Immutable(immutable_data.clone()).name());
assert_eq!(immutable_data.identifier(),
DataIdentifier::Immutable(*immutable_data.name()));
let name = XorName(sha256::hash(&[]).0);
let plain_data = PlainData::new(name, vec![]);
assert_eq!(plain_data.name(), Data::Plain(plain_data.clone()).name());
assert_eq!(plain_data.identifier(),
DataIdentifier::Plain(*plain_data.name()));
}
#[test]
fn data_request_name() {
let name = XorName(sha256::hash(&[]).0);
let tag = 0;
assert_eq!(&name, DataIdentifier::Structured(name, tag).name());
assert_eq!(&name, DataIdentifier::Immutable(name).name());
assert_eq!(&name, DataIdentifier::Plain(name).name());
}
}