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

use serde::Deserialize;

use super::auth;
use super::escape;
use super::ApiErrorResponse;
use super::Filter;
use super::JsonError;
use super::Project;
use super::Provider;

const ACCEPT_HEADER_JSON: &str = "application/json";
const GITLAB_API_BASEURL: &str = option_env!("GITLAB_API_BASEURL").unwrap_or("https://gitlab.com");

#[derive(Deserialize)]
#[serde(rename_all = "lowercase")]
pub enum GitlabVisibility {
    Private,
    Internal,
    Public,
}

#[derive(Deserialize)]
pub struct GitlabProject {
    #[serde(rename = "path")]
    pub name: String,
    pub path_with_namespace: String,
    pub http_url_to_repo: String,
    pub ssh_url_to_repo: String,
    pub visibility: GitlabVisibility,
}

#[derive(Deserialize)]
struct GitlabUser {
    pub username: String,
}

impl Project for GitlabProject {
    fn name(&self) -> String {
        self.name.clone()
    }

    fn namespace(&self) -> Option<String> {
        if let Some((namespace, _name)) = self.path_with_namespace.rsplit_once('/') {
            Some(namespace.to_string())
        } else {
            None
        }
    }

    fn ssh_url(&self) -> String {
        self.ssh_url_to_repo.clone()
    }

    fn http_url(&self) -> String {
        self.http_url_to_repo.clone()
    }

    fn private(&self) -> bool {
        !matches!(self.visibility, GitlabVisibility::Public)
    }
}

#[derive(Deserialize)]
pub struct GitlabApiErrorResponse {
    #[serde(alias = "error_description", alias = "error")]
    pub message: String,
}

impl JsonError for GitlabApiErrorResponse {
    fn to_string(self) -> String {
        self.message
    }
}

pub struct Gitlab {
    filter: Filter,
    secret_token: auth::AuthToken,
    api_url_override: Option<String>,
}

impl Gitlab {
    fn api_url(&self) -> String {
        self.api_url_override
            .as_ref()
            .unwrap_or(&GITLAB_API_BASEURL.to_string())
            .trim_end_matches('/')
            .to_string()
    }
}

impl Provider for Gitlab {
    type Project = GitlabProject;
    type Error = GitlabApiErrorResponse;

    fn new(
        filter: Filter,
        secret_token: auth::AuthToken,
        api_url_override: Option<String>,
    ) -> Result<Self, String> {
        Ok(Self {
            filter,
            secret_token,
            api_url_override,
        })
    }

    fn filter(&self) -> &Filter {
        &self.filter
    }

    fn secret_token(&self) -> &auth::AuthToken {
        &self.secret_token
    }

    fn auth_header_key() -> &'static str {
        "bearer"
    }

    fn get_user_projects(
        &self,
        user: &str,
    ) -> Result<Vec<GitlabProject>, ApiErrorResponse<GitlabApiErrorResponse>> {
        self.call_list(
            &format!("{}/api/v4/users/{}/projects", self.api_url(), escape(user)),
            Some(ACCEPT_HEADER_JSON),
        )
    }

    fn get_group_projects(
        &self,
        group: &str,
    ) -> Result<Vec<GitlabProject>, ApiErrorResponse<GitlabApiErrorResponse>> {
        self.call_list(
            &format!(
                "{}/api/v4/groups/{}/projects?include_subgroups=true&archived=false",
                self.api_url(),
                escape(group),
            ),
            Some(ACCEPT_HEADER_JSON),
        )
    }

    fn get_accessible_projects(
        &self,
    ) -> Result<Vec<GitlabProject>, ApiErrorResponse<GitlabApiErrorResponse>> {
        self.call_list(
            &format!("{}/api/v4/projects", self.api_url(),),
            Some(ACCEPT_HEADER_JSON),
        )
    }

    fn get_current_user(&self) -> Result<String, ApiErrorResponse<GitlabApiErrorResponse>> {
        Ok(super::call::<GitlabUser, GitlabApiErrorResponse>(
            &format!("{}/api/v4/user", self.api_url()),
            Self::auth_header_key(),
            self.secret_token(),
            Some(ACCEPT_HEADER_JSON),
        )?
        .username)
    }
}