cdrs 2.3.3

Cassandra DB driver written 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
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162

use crate::types::CBytes;

pub trait Authenticator: Clone + Send + Sync {
    fn get_auth_token(&self) -> CBytes;
    fn get_cassandra_name(&self) -> Option<&str>;
}

#[derive(Debug, Clone)]
#[deprecated(
    since = "2.1.0",
    note = "`PasswordAuthenticator` is deprecated in favour of `StaticPasswordAuthenticator` because the second one doesn't require static lifetime for credentials thus it's easier to use."
)]
pub struct PasswordAuthenticator<'a> {
    username: &'a str,
    password: &'a str,
}

#[allow(deprecated)]
impl<'a> PasswordAuthenticator<'a> {
    pub fn new<'b>(username: &'b str, password: &'b str) -> PasswordAuthenticator<'b> {
        PasswordAuthenticator {
            username: username,
            password: password,
        }
    }
}

#[allow(deprecated)]
impl<'a> Authenticator for PasswordAuthenticator<'a> {
    fn get_auth_token(&self) -> CBytes {
        let mut token = vec![0];
        token.extend_from_slice(self.username.as_bytes());
        token.push(0);
        token.extend_from_slice(self.password.as_bytes());

        CBytes::new(token)
    }

    fn get_cassandra_name(&self) -> Option<&str> {
        Some("org.apache.cassandra.auth.PasswordAuthenticator")
    }
}

#[derive(Debug, Clone)]
pub struct StaticPasswordAuthenticator {
    username: String,
    password: String,
}

impl StaticPasswordAuthenticator {
    pub fn new<S: ToString>(username: S, password: S) -> StaticPasswordAuthenticator {
        StaticPasswordAuthenticator {
            username: username.to_string(),
            password: password.to_string(),
        }
    }
}

impl Authenticator for StaticPasswordAuthenticator {
    fn get_auth_token(&self) -> CBytes {
        let mut token = vec![0];
        token.extend_from_slice(self.username.as_bytes());
        token.push(0);
        token.extend_from_slice(self.password.as_bytes());

        CBytes::new(token)
    }

    fn get_cassandra_name(&self) -> Option<&str> {
        Some("org.apache.cassandra.auth.PasswordAuthenticator")
    }
}

#[derive(Debug, Clone)]
pub struct NoneAuthenticator;

impl Authenticator for NoneAuthenticator {
    fn get_auth_token(&self) -> CBytes {
        CBytes::new(vec![0])
    }

    fn get_cassandra_name(&self) -> Option<&str> {
        None
    }
}

#[cfg(test)]
#[allow(deprecated)]
mod tests {
    use super::*;

    #[test]
    fn test_password_authenticator_trait_impl() {
        let authenticator = PasswordAuthenticator::new("a", "a");
        let _ = authenticator_tester(Box::new(authenticator));
    }

    #[test]
    fn test_password_authenticator_new() {
        PasswordAuthenticator::new("foo", "bar");
    }

    #[test]
    fn test_password_authenticator_get_cassandra_name() {
        let auth = PasswordAuthenticator::new("foo", "bar");
        assert_eq!(
            auth.get_cassandra_name(),
            Some("org.apache.cassandra.auth.PasswordAuthenticator")
        );
    }

    #[test]
    fn test_password_authenticator_get_auth_token() {
        let auth = PasswordAuthenticator::new("foo", "bar");
        let mut expected_token = vec![0];
        expected_token.extend_from_slice("foo".as_bytes());
        expected_token.push(0);
        expected_token.extend_from_slice("bar".as_bytes());

        assert_eq!(auth.get_auth_token().into_plain().unwrap(), expected_token);
    }

    #[test]
    fn test_static_password_authenticator_trait_impl() {
        let authenticator = StaticPasswordAuthenticator::new("a", "a");
        let _ = authenticator_tester(Box::new(authenticator));
    }

    #[test]
    fn test_static_password_authenticator_new() {
        StaticPasswordAuthenticator::new("foo", "bar");
    }

    #[test]
    fn test_static_password_authenticator_get_cassandra_name() {
        let auth = StaticPasswordAuthenticator::new("foo", "bar");
        assert_eq!(
            auth.get_cassandra_name(),
            Some("org.apache.cassandra.auth.PasswordAuthenticator")
        );
    }

    #[test]
    fn test_static_password_authenticator_get_auth_token() {
        let auth = PasswordAuthenticator::new("foo", "bar");
        let mut expected_token = vec![0];
        expected_token.extend_from_slice("foo".as_bytes());
        expected_token.push(0);
        expected_token.extend_from_slice("bar".as_bytes());

        assert_eq!(auth.get_auth_token().into_plain().unwrap(), expected_token);
    }

    #[test]
    fn test_authenticator_none_get_cassandra_name() {
        let auth = NoneAuthenticator;
        assert_eq!(auth.get_cassandra_name(), None);
        assert_eq!(auth.get_auth_token().into_plain().unwrap(), vec![0]);
    }

    fn authenticator_tester<A: Authenticator>(_authenticator: Box<A>) {}
}