ldap_parser/
error.rs

1//! LDAP errors
2
3use asn1_rs::nom;
4use asn1_rs::Error;
5use nom::error::{ErrorKind, FromExternalError, ParseError};
6use nom::IResult;
7
8/// Holds the result of parsing functions (LDAP)
9///
10/// Note that this type is also a `Result`, so usual functions (`map`, `unwrap` etc.) are available.
11///
12/// Note that this type is not named `LdapResult` to avoid conflicts with LDAP standard type
13pub type Result<'a, T> = IResult<&'a [u8], T, LdapError>;
14
15/// An error that can occur while parsing or validating a certificate.
16#[derive(Debug, PartialEq, thiserror::Error)]
17pub enum LdapError {
18    #[error("Invalid LDAP String encoding")]
19    InvalidString,
20
21    #[error("Invalid LDAP Authentication Type")]
22    InvalidAuthenticationType,
23
24    #[error("Invalid DN encoding")]
25    InvalidDN,
26
27    #[error("Invalid Substring Type")]
28    InvalidSubstring,
29
30    #[error("Invalid Type for Filter")]
31    InvalidFilterType,
32    #[error("Invalid Type for Message")]
33    InvalidMessageType,
34
35    #[error("Unknown error")]
36    Unknown,
37
38    #[error("BER error: {0}")]
39    Ber(#[from] Error),
40    #[error("nom error: {0:?}")]
41    NomError(ErrorKind),
42}
43
44impl From<LdapError> for nom::Err<LdapError> {
45    fn from(e: LdapError) -> nom::Err<LdapError> {
46        nom::Err::Error(e)
47    }
48}
49
50impl From<ErrorKind> for LdapError {
51    fn from(e: ErrorKind) -> LdapError {
52        LdapError::NomError(e)
53    }
54}
55
56impl<I> ParseError<I> for LdapError {
57    fn from_error_kind(_input: I, kind: ErrorKind) -> Self {
58        LdapError::NomError(kind)
59    }
60    fn append(_input: I, kind: ErrorKind, _other: Self) -> Self {
61        LdapError::NomError(kind)
62    }
63}
64
65impl<I, E> FromExternalError<I, E> for LdapError {
66    fn from_external_error(_input: I, kind: ErrorKind, _e: E) -> LdapError {
67        LdapError::NomError(kind)
68    }
69}
70
71#[allow(dead_code)]
72pub(crate) fn print_hex_dump(bytes: &[u8], max_len: usize) {
73    use nom::HexDisplay;
74    use std::cmp::min;
75    let m = min(bytes.len(), max_len);
76    if m == 0 {
77        println!("<empty>");
78    }
79    print!("{}", &bytes[..m].to_hex(16));
80    if bytes.len() > max_len {
81        println!("... <continued>");
82    }
83}
ldap_parser/error.rs

ldap_parser/
error.rs
