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

#[cfg(target_os = "linux")]
use secret_service::Error as SsError;
#[cfg(target_os = "macos")]
use security_framework::base::Error as SfError;
use std::error;
use std::fmt;
use std::string::FromUtf8Error;

pub type Result<T> = ::std::result::Result<T, KeyringError>;

#[derive(Debug)]
pub enum KeyringError {
    #[cfg(target_os = "macos")]
    MacOsKeychainError(SfError),
    #[cfg(target_os = "linux")]
    SecretServiceError(SsError),
    #[cfg(target_os = "windows")]
    WindowsVaultError,
    NoBackendFound,
    NoPasswordFound,
    Parse(FromUtf8Error),
}

impl fmt::Display for KeyringError {
    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
        match *self {
            #[cfg(target_os = "macos")]
            KeyringError::MacOsKeychainError(ref err) => {
                write!(f, "Mac Os Keychain Error: {}", err)
            }
            #[cfg(target_os = "linux")]
            KeyringError::SecretServiceError(ref err) => write!(f, "Secret Service Error: {}", err),
            #[cfg(target_os = "windows")]
            KeyringError::WindowsVaultError => write!(f, "Windows Vault Error"),
            KeyringError::NoBackendFound => write!(f, "Keyring error: No Backend Found"),
            KeyringError::NoPasswordFound => write!(f, "Keyring Error: No Password Found"),
            KeyringError::Parse(ref err) => write!(f, "Keyring Parse Error: {}", err),
        }
    }
}

impl error::Error for KeyringError {
    // the description method on KeyringError is hard deprecated,
    // but since we defined this impl before it was deprecated
    // we are still using it.  So we have to turn off the warning.
    #[allow(deprecated)]
    fn description(&self) -> &str {
        match *self {
            #[cfg(target_os = "macos")]
            KeyringError::MacOsKeychainError(ref err) => err.description(),
            #[cfg(target_os = "linux")]
            KeyringError::SecretServiceError(ref err) => err.description(),
            #[cfg(target_os = "windows")]
            KeyringError::WindowsVaultError => "Windows Vault Error",
            KeyringError::NoBackendFound => "No Backend Found",
            KeyringError::NoPasswordFound => "No Password Found",
            KeyringError::Parse(ref err) => err.description(),
        }
    }

    fn cause(&self) -> Option<&dyn error::Error> {
        match *self {
            #[cfg(target_os = "linux")]
            KeyringError::SecretServiceError(ref err) => Some(err),
            #[cfg(target_os = "macos")]
            KeyringError::MacOsKeychainError(ref err) => Some(err),
            _ => None,
        }
    }
}

#[cfg(target_os = "linux")]
impl From<SsError> for KeyringError {
    fn from(err: SsError) -> KeyringError {
        KeyringError::SecretServiceError(err)
    }
}

#[cfg(target_os = "macos")]
impl From<SfError> for KeyringError {
    fn from(err: SfError) -> KeyringError {
        KeyringError::MacOsKeychainError(err)
    }
}

impl From<FromUtf8Error> for KeyringError {
    fn from(err: FromUtf8Error) -> KeyringError {
        KeyringError::Parse(err)
    }
}