synd-term 0.3.2

terminal feed viewer
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

use std::ops::Add;
use synd_auth::{
    device_flow::{provider, DeviceAuthorizationResponse, DeviceFlow},
    jwt,
};

use crate::{
    auth::{AuthenticationProvider, Credential, CredentialError, Verified},
    config,
    types::Time,
};

#[derive(Clone)]
pub struct DeviceFlows {
    pub github: DeviceFlow<provider::Github>,
    pub google: DeviceFlow<provider::Google>,
}

#[derive(Clone)]
pub struct JwtService {
    pub google: jwt::google::JwtService,
}

impl JwtService {
    pub fn new() -> Self {
        Self {
            google: jwt::google::JwtService::default(),
        }
    }

    #[must_use]
    pub fn with_google_jwt_service(self, google: jwt::google::JwtService) -> Self {
        Self { google }
    }

    pub(crate) async fn refresh_google_id_token(
        &self,
        refresh_token: &str,
    ) -> Result<Verified<Credential>, CredentialError> {
        let id_token = self
            .google
            .refresh_id_token(refresh_token)
            .await
            .map_err(CredentialError::RefreshJwt)?;
        let expired_at = self
            .google
            .decode_id_token_insecure(&id_token, false)
            .map_err(CredentialError::DecodeJwt)?
            .expired_at();
        let credential = Credential::Google {
            id_token,
            refresh_token: refresh_token.to_owned(),
            expired_at,
        };
        Ok(Verified(credential))
    }
}

#[derive(Clone)]
pub struct Authenticator {
    pub device_flows: DeviceFlows,
    pub jwt_service: JwtService,
}

impl Authenticator {
    pub fn new() -> Self {
        Self {
            device_flows: DeviceFlows {
                github: DeviceFlow::new(provider::Github::default()),
                google: DeviceFlow::new(provider::Google::default()),
            },
            jwt_service: JwtService::new(),
        }
    }

    #[must_use]
    pub fn with_device_flows(self, device_flows: DeviceFlows) -> Self {
        Self {
            device_flows,
            ..self
        }
    }

    #[must_use]
    pub fn with_jwt_service(self, jwt_service: JwtService) -> Self {
        Self {
            jwt_service,
            ..self
        }
    }

    pub(crate) async fn init_device_flow(
        &self,
        provider: AuthenticationProvider,
    ) -> anyhow::Result<DeviceAuthorizationResponse> {
        match provider {
            AuthenticationProvider::Github => {
                self.device_flows.github.device_authorize_request().await
            }

            AuthenticationProvider::Google => {
                self.device_flows.google.device_authorize_request().await
            }
        }
    }

    pub(crate) async fn poll_device_flow_access_token(
        &self,
        now: Time,
        provider: AuthenticationProvider,
        response: DeviceAuthorizationResponse,
    ) -> anyhow::Result<Verified<Credential>> {
        match provider {
            AuthenticationProvider::Github => {
                let token_response = self
                    .device_flows
                    .github
                    .poll_device_access_token(response.device_code, response.interval)
                    .await?;

                Ok(Verified(Credential::Github {
                    access_token: token_response.access_token,
                }))
            }
            AuthenticationProvider::Google => {
                let token_response = self
                    .device_flows
                    .google
                    .poll_device_access_token(response.device_code, response.interval)
                    .await?;

                let id_token = token_response.id_token.expect("id token not found");
                let expired_at = self
                    .jwt_service
                    .google
                    .decode_id_token_insecure(&id_token, false)
                    .ok()
                    .map_or(now.add(config::credential::FALLBACK_EXPIRE), |claims| {
                        claims.expired_at()
                    });
                Ok(Verified(Credential::Google {
                    id_token,
                    refresh_token: token_response
                        .refresh_token
                        .expect("refresh token not found"),
                    expired_at,
                }))
            }
        }
    }
}