mas_handlers/oauth2/device/
link.rs

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1// Copyright 2024 New Vector Ltd.
2// Copyright 2023, 2024 The Matrix.org Foundation C.I.C.
3//
4// SPDX-License-Identifier: AGPL-3.0-only
5// Please see LICENSE in the repository root for full details.
6
7use axum::{
8    extract::{Query, State},
9    response::{Html, IntoResponse},
10};
11use mas_axum_utils::{InternalError, cookies::CookieJar};
12use mas_router::UrlBuilder;
13use mas_storage::{BoxClock, BoxRepository};
14use mas_templates::{
15    DeviceLinkContext, DeviceLinkFormField, FieldError, FormState, TemplateContext, Templates,
16};
17use serde::{Deserialize, Serialize};
18
19use crate::PreferredLanguage;
20
21#[derive(Serialize, Deserialize)]
22pub struct Params {
23    #[serde(default)]
24    code: Option<String>,
25}
26
27#[tracing::instrument(name = "handlers.oauth2.device.link.get", skip_all)]
28pub(crate) async fn get(
29    clock: BoxClock,
30    mut repo: BoxRepository,
31    PreferredLanguage(locale): PreferredLanguage,
32    State(templates): State<Templates>,
33    State(url_builder): State<UrlBuilder>,
34    cookie_jar: CookieJar,
35    Query(query): Query<Params>,
36) -> Result<impl IntoResponse, InternalError> {
37    let mut form_state = FormState::from_form(&query);
38
39    // If we have a code in query, find it in the database
40    if let Some(code) = &query.code {
41        // Find the code in the database
42        let code = code.to_uppercase();
43        let grant = repo
44            .oauth2_device_code_grant()
45            .find_by_user_code(&code)
46            .await?
47            // XXX: We should have different error messages for already exchanged and expired
48            .filter(|grant| grant.is_pending())
49            .filter(|grant| grant.expires_at > clock.now());
50
51        if let Some(grant) = grant {
52            // This is a valid code, redirect to the consent page
53            // This will in turn redirect to the login page if the user is not logged in
54            let destination = url_builder.redirect(&mas_router::DeviceCodeConsent::new(grant.id));
55
56            return Ok((cookie_jar, destination).into_response());
57        }
58
59        // The code isn't valid, set an error on the form
60        form_state = form_state.with_error_on_field(DeviceLinkFormField::Code, FieldError::Invalid);
61    }
62
63    // Rendre the form
64    let ctx = DeviceLinkContext::new()
65        .with_form_state(form_state)
66        .with_language(locale);
67
68    let content = templates.render_device_link(&ctx)?;
69
70    Ok((cookie_jar, Html(content)).into_response())
71}
mas_handlers/oauth2/device/link.rs

mas_handlers/oauth2/device/
link.rs
