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use std::hash::{Hash, Hasher};
use std::cmp::Ordering;
use failure;
use crate::packet::Tag;
use crate::packet;
use crate::Packet;
/// Holds an unknown packet.
///
/// This is used by the parser to hold packets that it doesn't know
/// how to process rather than abort.
///
/// This packet effectively holds a binary blob.
#[derive(Debug)]
pub struct Unknown {
/// CTB packet header fields.
pub(crate) common: packet::Common,
/// Packet tag.
tag: Tag,
/// Error that caused parsing or processing to abort.
error: failure::Error,
}
impl Eq for Unknown {}
impl PartialEq for Unknown {
fn eq(&self, other: &Unknown) -> bool {
self.cmp(other) == Ordering::Equal
}
}
impl PartialOrd for Unknown
{
fn partial_cmp(&self, other: &Self) -> Option<Ordering> {
Some(self.cmp(other))
}
}
impl Ord for Unknown
{
fn cmp(&self, other: &Unknown) -> Ordering {
// An unknown packet cannot have children.
assert!(self.common.children.is_none());
assert!(other.common.children.is_none());
match self.tag.cmp(&other.tag) {
Ordering::Equal => self.common.body().cmp(&other.common.body()),
o => o,
}
}
}
impl Hash for Unknown {
fn hash<H: Hasher>(&self, state: &mut H) {
self.common.hash(state);
self.tag.hash(state);
}
}
impl Clone for Unknown {
fn clone(&self) -> Self {
Unknown {
common: self.common.clone(),
tag: self.tag,
error: failure::err_msg(format!("{}", self.error)),
}
}
}
impl Unknown {
/// Returns a new `Unknown` packet.
pub fn new(tag: Tag, error: failure::Error) -> Self {
Unknown {
common: Default::default(),
tag: tag,
error: error,
}
}
/// Gets the unknown packet's tag.
pub fn tag(&self) -> Tag {
self.tag
}
/// Sets the unknown packet's tag.
pub fn set_tag(&mut self, tag: Tag) -> Tag {
::std::mem::replace(&mut self.tag, tag)
}
/// Gets the unknown packet's error.
///
/// This is the error that caused parsing or processing to abort.
pub fn error(&self) -> &failure::Error {
&self.error
}
/// Sets the unknown packet's error.
///
/// This is the error that caused parsing or processing to abort.
pub fn set_error(&mut self, error: failure::Error) -> failure::Error {
::std::mem::replace(&mut self.error, error)
}
/// Sets the packet's contents.
///
/// This is the raw packet content not include the CTB and length
/// information, and not encoded using something like OpenPGP's
/// partial body encoding.
pub fn body(&self) -> Option<&[u8]> {
self.common.body.as_ref().map(|b| b.as_slice())
}
/// Sets the packet's contents.
///
/// This is the raw packet content not include the CTB and length
/// information, and not encoded using something like OpenPGP's
/// partial body encoding.
pub fn set_body(&mut self, data: Vec<u8>) -> Option<Vec<u8>> {
::std::mem::replace(&mut self.common.body, Some(data))
}
}
impl From<Unknown> for Packet {
fn from(s: Unknown) -> Self {
Packet::Unknown(s)
}
}
|
