trz-gateway-common 0.2.10

Secure Proxy / Agents implementation in Rust
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136

use std::ops::Deref;
use std::time::SystemTime;

use nameth::NamedEnumValues as _;
use nameth::nameth;
use openssl::asn1::Asn1Time;
use openssl::asn1::Asn1TimeRef;
use openssl::error::ErrorStack;
use openssl::x509::X509Builder;
use openssl::x509::X509Ref;

use super::time::Asn1ToSystemTimeError;
use super::time::SystemToAsn1TimeError;
use super::time::asn1_to_system_time;
use super::time::system_to_asn1_time;

/// Represents the interval of time for certificate validity.
#[derive(Clone, Copy, Debug, PartialEq, Eq)]
pub struct Validity<T = SystemTime> {
    pub from: T,
    pub to: T,
}

pub(super) fn set_validity(
    builder: &mut X509Builder,
    validity: Validity<Asn1Time>,
) -> Result<(), ValidityError<ErrorStack>> {
    builder
        .set_not_before(&validity.from)
        .map_err(ValidityError::NotBefore)?;
    builder
        .set_not_after(&validity.to)
        .map_err(ValidityError::NotAfter)?;
    Ok(())
}

impl<T> Validity<T> {
    pub fn try_map<F, U, E>(self, f: F) -> Result<Validity<U>, ValidityError<E>>
    where
        F: Fn(T) -> Result<U, E>,
        E: std::error::Error,
    {
        Ok(Validity {
            from: f(self.from).map_err(ValidityError::NotBefore)?,
            to: f(self.to).map_err(ValidityError::NotAfter)?,
        })
    }

    pub fn map<F, U>(self, f: F) -> Validity<U>
    where
        F: Fn(T) -> U,
    {
        Validity {
            from: f(self.from),
            to: f(self.to),
        }
    }
}

impl TryFrom<Validity> for Validity<Asn1Time> {
    type Error = ValidityError<SystemToAsn1TimeError>;

    fn try_from(value: Validity) -> Result<Self, Self::Error> {
        value.try_map(system_to_asn1_time)
    }
}

impl<'t> TryFrom<Validity<&'t Asn1TimeRef>> for Validity {
    type Error = ValidityError<Asn1ToSystemTimeError>;

    fn try_from(value: Validity<&'t Asn1TimeRef>) -> Result<Self, Self::Error> {
        value.try_map(asn1_to_system_time)
    }
}

impl<'t> TryFrom<&'t X509Ref> for Validity {
    type Error = ValidityError<Asn1ToSystemTimeError>;

    fn try_from(x509: &'t X509Ref) -> Result<Self, Self::Error> {
        Validity {
            from: x509.not_before(),
            to: x509.not_after(),
        }
        .try_map(asn1_to_system_time)
    }
}

#[nameth]
#[derive(thiserror::Error, Debug)]
pub enum ValidityError<E: std::error::Error> {
    #[error("[{n}] Failed to process the 'not before' field: {0}", n = self.name())]
    NotBefore(E),

    #[error("[{n}] Failed to process the 'not after' field: {0}", n = self.name())]
    NotAfter(E),
}

impl<T> Validity<T> {
    pub fn as_deref(&self) -> Validity<&T::Target>
    where
        T: Deref,
    {
        Validity {
            from: &self.from,
            to: &self.to,
        }
    }
}

#[cfg(test)]
mod tests {
    use openssl::asn1::Asn1Time;

    use super::Validity;

    #[test]
    fn convert() -> Result<(), Box<dyn std::error::Error>> {
        for _ in 0..100 {
            let one_year = Validity {
                from: Asn1Time::days_from_now(0)?,
                to: Asn1Time::days_from_now(365)?,
            };
            let system_time: Validity = Validity {
                from: Asn1Time::days_from_now(0)?,
                to: Asn1Time::days_from_now(365)?,
            }
            .as_deref()
            .try_into()?;
            let one_year2: Validity<Asn1Time> = system_time.try_into()?;
            if one_year == one_year2 {
                return Ok(());
            }
        }
        panic!()
    }
}