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("Parsing Filter reached maximum depth")]
36    FilterMaxDepth,
37
38    #[error("Unknown error")]
39    Unknown,
40
41    #[error("BER error: {0}")]
42    Ber(#[from] Error),
43    #[error("nom error: {0:?}")]
44    NomError(ErrorKind),
45}
46
47impl From<LdapError> for nom::Err<LdapError> {
48    fn from(e: LdapError) -> nom::Err<LdapError> {
49        nom::Err::Error(e)
50    }
51}
52
53impl From<ErrorKind> for LdapError {
54    fn from(e: ErrorKind) -> LdapError {
55        LdapError::NomError(e)
56    }
57}
58
59impl<I> ParseError<I> for LdapError {
60    fn from_error_kind(_input: I, kind: ErrorKind) -> Self {
61        LdapError::NomError(kind)
62    }
63    fn append(_input: I, kind: ErrorKind, _other: Self) -> Self {
64        LdapError::NomError(kind)
65    }
66}
67
68impl<I, E> FromExternalError<I, E> for LdapError {
69    fn from_external_error(_input: I, kind: ErrorKind, _e: E) -> LdapError {
70        LdapError::NomError(kind)
71    }
72}
73
74#[allow(dead_code)]
75pub(crate) fn print_hex_dump(bytes: &[u8], max_len: usize) {
76    use nom::HexDisplay;
77    use std::cmp::min;
78    let m = min(bytes.len(), max_len);
79    if m == 0 {
80        println!("<empty>");
81    }
82    print!("{}", bytes[..m].to_hex(16));
83    if bytes.len() > max_len {
84        println!("... <continued>");
85    }
86}
ldap_parser/error.rs

ldap_parser/
error.rs
