libp2prs_core/identity/
error.rs

1// Copyright 2019 Parity Technologies (UK) Ltd.
2// Copyright 2020 Netwarps Ltd.
3//
4// Permission is hereby granted, free of charge, to any person obtaining a
5// copy of this software and associated documentation files (the "Software"),
6// to deal in the Software without restriction, including without limitation
7// the rights to use, copy, modify, merge, publish, distribute, sublicense,
8// and/or sell copies of the Software, and to permit persons to whom the
9// Software is furnished to do so, subject to the following conditions:
10//
11// The above copyright notice and this permission notice shall be included in
12// all copies or substantial portions of the Software.
13//
14// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
15// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
19// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
20// DEALINGS IN THE SOFTWARE.
21
22//! Errors during identity key operations.
23
24use std::error::Error;
25use std::fmt;
26
27/// An error during decoding of key material.
28#[derive(Debug)]
29pub struct DecodingError {
30    msg: String,
31    source: Option<Box<dyn Error + Send + Sync>>,
32}
33
34impl DecodingError {
35    pub(crate) fn new<S: ToString>(msg: S) -> Self {
36        Self {
37            msg: msg.to_string(),
38            source: None,
39        }
40    }
41
42    pub(crate) fn source(self, source: impl Error + Send + Sync + 'static) -> Self {
43        Self {
44            source: Some(Box::new(source)),
45            ..self
46        }
47    }
48}
49
50impl fmt::Display for DecodingError {
51    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
52        write!(f, "Key decoding error: {}", self.msg)
53    }
54}
55
56impl Error for DecodingError {
57    fn source(&self) -> Option<&(dyn Error + 'static)> {
58        self.source.as_ref().map(|s| &**s as &dyn Error)
59    }
60}
61
62/// An error during signing of a message.
63#[derive(Debug)]
64pub struct SigningError {
65    msg: String,
66    source: Option<Box<dyn Error + Send + Sync>>,
67}
68
69/// An error during encoding of key material.
70impl SigningError {
71    pub(crate) fn new<S: ToString>(msg: S) -> Self {
72        Self {
73            msg: msg.to_string(),
74            source: None,
75        }
76    }
77
78    pub(crate) fn source(self, source: impl Error + Send + Sync + 'static) -> Self {
79        Self {
80            source: Some(Box::new(source)),
81            ..self
82        }
83    }
84}
85
86impl fmt::Display for SigningError {
87    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
88        write!(f, "Key signing error: {}", self.msg)
89    }
90}
91
92impl Error for SigningError {
93    fn source(&self) -> Option<&(dyn Error + 'static)> {
94        self.source.as_ref().map(|s| &**s as &dyn Error)
95    }
96}