aboutsummaryrefslogtreecommitdiffstats
path: root/rust/src/lib.rs
blob: a31404dacd407ac3b5db0dc23937dfb638838632 (plain)
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
163
164
165
166
167
168
169
170
#![allow(proc_macro_derive_resolution_fallback)]
#![recursion_limit = "128"]

extern crate chrono;
extern crate fatcat_api_spec;
#[macro_use]
extern crate diesel;
extern crate diesel_migrations;
extern crate dotenv;
extern crate futures;
extern crate uuid;
#[macro_use]
extern crate hyper;
extern crate swagger;
#[macro_use]
extern crate error_chain;
extern crate iron;
extern crate serde_json;
#[macro_use]
extern crate log;
extern crate data_encoding;
extern crate regex;
#[macro_use]
extern crate lazy_static;
extern crate macaroon;
extern crate sha1;

pub mod api_entity_crud;
pub mod api_helpers;
pub mod api_server;
pub mod api_wrappers;
pub mod auth;
pub mod database_models;
pub mod database_schema;

pub mod errors {
    // Create the Error, ErrorKind, ResultExt, and Result types
    error_chain! {
        foreign_links { Fmt(::std::fmt::Error);
                        Diesel(::diesel::result::Error);
                        R2d2(::diesel::r2d2::Error);
                        Uuid(::uuid::ParseError);
                        Io(::std::io::Error) #[cfg(unix)];
                        Serde(::serde_json::Error);
                        Utf8Decode(::std::string::FromUtf8Error);
                        StringDecode(::data_encoding::DecodeError);
        }
        errors {
            InvalidFatcatId(id: String) {
                description("invalid fatcat identifier syntax")
                display("invalid fatcat identifier (expect 26-char base32 encoded): {}", id)
            }
            MalformedExternalId(id: String) {
                description("external identifier doesn't match required pattern")
                display("external identifier doesn't match required pattern: {}", id)
            }
            MalformedChecksum(hash: String) {
                description("checksum doesn't match required pattern (hex encoding)")
                display("checksum doesn't match required pattern (hex encoding): {}", hash)
            }
            NotInControlledVocabulary(word: String) {
                description("word or type not correct for controlled vocabulary")
                display("word or type not correct for controlled vocabulary")
            }
            EditgroupAlreadyAccepted(id: String) {
                description("editgroup was already accepted")
                display("attempted to accept or mutate an editgroup which was already accepted: {}", id)
            }
            MissingOrMultipleExternalId(message: String) {
                description("external identifiers missing or multiple specified")
                display("external identifiers missing or multiple specified; please supply exactly one")
            }
            InvalidEntityStateTransform(message: String) {
                description("Invalid Entity State Transform")
                display("tried to mutate an entity which was not in an appropriate state: {}", message)
            }
            InvalidCredentials(message: String) {
                description("auth token was missing, expired, revoked, or corrupt")
                display("auth token was missing, expired, revoked, or corrupt: {}", message)
            }
            InsufficientPrivileges(message: String) {
                description("editor account doesn't have authorization")
                display("editor account doesn't have authorization: {}", message)
            }
            OtherBadRequest(message: String) {
                description("catch-all error for bad or unallowed requests")
                display("broke a constraint or made an otherwise invalid request: {}", message)
            }
        }
    }
}

#[doc(hidden)]
pub use errors::*;

pub use self::errors::*;
use auth::AuthConfectionary;
use diesel::pg::PgConnection;
use diesel::r2d2::ConnectionManager;
use dotenv::dotenv;
use iron::middleware::AfterMiddleware;
use iron::{Request, Response};
use std::env;

#[cfg(feature = "postgres")]
embed_migrations!("../migrations/");

pub type ConnectionPool = diesel::r2d2::Pool<ConnectionManager<diesel::pg::PgConnection>>;

/// Instantiate a new API server with a pooled database connection
pub fn database_worker_pool() -> Result<ConnectionPool> {
    dotenv().ok();
    let database_url = env::var("DATABASE_URL").expect("DATABASE_URL must be set");
    let manager = ConnectionManager::<PgConnection>::new(database_url);
    let pool = diesel::r2d2::Pool::builder()
        .build(manager)
        .expect("Failed to create database pool.");
    Ok(pool)
}

pub fn env_confectionary() -> Result<AuthConfectionary> {
    let auth_location = env::var("AUTH_LOCATION").expect("AUTH_LOCATION must be set");
    let auth_key = env::var("AUTH_SECRET_KEY").expect("AUTH_SECRET_KEY must be set");
    let auth_key_ident = env::var("AUTH_KEY_IDENT").expect("AUTH_KEY_IDENT must be set");
    AuthConfectionary::new(auth_location, auth_key_ident, auth_key)
}

/// Instantiate a new API server with a pooled database connection
pub fn server() -> Result<api_server::Server> {
    dotenv().ok();
    let database_url = env::var("DATABASE_URL").expect("DATABASE_URL must be set");
    let manager = ConnectionManager::<PgConnection>::new(database_url);
    let pool = diesel::r2d2::Pool::builder()
        .build(manager)
        .expect("Failed to create database pool.");
    let confectionary = env_confectionary()?;
    Ok(api_server::Server {
        db_pool: pool,
        auth_confectionary: confectionary,
    })
}

pub fn test_server() -> Result<api_server::Server> {
    dotenv().ok();
    let database_url = env::var("TEST_DATABASE_URL").expect("TEST_DATABASE_URL must be set");
    env::set_var("DATABASE_URL", database_url);

    let mut server = server()?;
    server.auth_confectionary = AuthConfectionary::new_dummy();
    let conn = server.db_pool.get().expect("db_pool error");

    // run migrations; revert latest (dummy data); re-run latest
    diesel_migrations::run_pending_migrations(&conn).unwrap();
    diesel_migrations::revert_latest_migration(&conn).unwrap();
    diesel_migrations::run_pending_migrations(&conn).unwrap();
    Ok(server)
}

/// HTTP header middleware
header! { (XClacksOverhead, "X-Clacks-Overhead") => [String] }

pub struct XClacksOverheadMiddleware;

impl AfterMiddleware for XClacksOverheadMiddleware {
    fn after(&self, _req: &mut Request, mut res: Response) -> iron::IronResult<Response> {
        res.headers
            .set(XClacksOverhead("GNU aaronsw, jpb".to_owned()));
        Ok(res)
    }
}