summaryrefslogtreecommitdiffstats
path: root/testing/webdriver/src/server.rs
blob: 3aa55c690ec25e97bcf2e1d7bc77062c49e7d76d (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
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

use crate::command::{WebDriverCommand, WebDriverMessage};
use crate::error::{ErrorStatus, WebDriverError, WebDriverResult};
use crate::httpapi::{
    standard_routes, Route, VoidWebDriverExtensionRoute, WebDriverExtensionRoute,
};
use crate::response::{CloseWindowResponse, WebDriverResponse};
use crate::Parameters;
use bytes::Bytes;
use http::{self, Method, StatusCode};
use std::marker::PhantomData;
use std::net::{SocketAddr, TcpListener as StdTcpListener};
use std::sync::mpsc::{channel, Receiver, Sender};
use std::sync::{Arc, Mutex};
use std::thread;
use tokio::net::TcpListener;
use tokio_stream::wrappers::TcpListenerStream;
use url::{Host, Url};
use warp::{self, Buf, Filter, Rejection};

// Silence warning about Quit being unused for now.
#[allow(dead_code)]
enum DispatchMessage<U: WebDriverExtensionRoute> {
    HandleWebDriver(
        WebDriverMessage<U>,
        Sender<WebDriverResult<WebDriverResponse>>,
    ),
    Quit,
}

#[derive(Clone, Debug, PartialEq)]
/// Representation of whether we managed to successfully send a DeleteSession message
/// and read the response during session teardown.
pub enum SessionTeardownKind {
    /// A DeleteSession message has been sent and the response handled.
    Deleted,
    /// No DeleteSession message has been sent, or the response was not received.
    NotDeleted,
}

#[derive(Clone, Debug, PartialEq)]
pub struct Session {
    pub id: String,
}

impl Session {
    fn new(id: String) -> Session {
        Session { id }
    }
}

pub trait WebDriverHandler<U: WebDriverExtensionRoute = VoidWebDriverExtensionRoute>: Send {
    fn handle_command(
        &mut self,
        session: &Option<Session>,
        msg: WebDriverMessage<U>,
    ) -> WebDriverResult<WebDriverResponse>;
    fn teardown_session(&mut self, kind: SessionTeardownKind);
}

#[derive(Debug)]
struct Dispatcher<T: WebDriverHandler<U>, U: WebDriverExtensionRoute> {
    handler: T,
    session: Option<Session>,
    extension_type: PhantomData<U>,
}

impl<T: WebDriverHandler<U>, U: WebDriverExtensionRoute> Dispatcher<T, U> {
    fn new(handler: T) -> Dispatcher<T, U> {
        Dispatcher {
            handler,
            session: None,
            extension_type: PhantomData,
        }
    }

    fn run(&mut self, msg_chan: &Receiver<DispatchMessage<U>>) {
        loop {
            match msg_chan.recv() {
                Ok(DispatchMessage::HandleWebDriver(msg, resp_chan)) => {
                    let resp = match self.check_session(&msg) {
                        Ok(_) => self.handler.handle_command(&self.session, msg),
                        Err(e) => Err(e),
                    };

                    match resp {
                        Ok(WebDriverResponse::NewSession(ref new_session)) => {
                            self.session = Some(Session::new(new_session.session_id.clone()));
                        }
                        Ok(WebDriverResponse::CloseWindow(CloseWindowResponse(ref handles))) => {
                            if handles.is_empty() {
                                debug!("Last window was closed, deleting session");
                                // The teardown_session implementation is responsible for actually
                                // sending the DeleteSession message in this case
                                self.teardown_session(SessionTeardownKind::NotDeleted);
                            }
                        }
                        Ok(WebDriverResponse::DeleteSession) => {
                            self.teardown_session(SessionTeardownKind::Deleted);
                        }
                        Err(ref x) if x.delete_session => {
                            // This includes the case where we failed during session creation
                            self.teardown_session(SessionTeardownKind::NotDeleted)
                        }
                        _ => {}
                    }

                    if resp_chan.send(resp).is_err() {
                        error!("Sending response to the main thread failed");
                    };
                }
                Ok(DispatchMessage::Quit) => break,
                Err(e) => panic!("Error receiving message in handler: {:?}", e),
            }
        }
    }

    fn teardown_session(&mut self, kind: SessionTeardownKind) {
        debug!("Teardown session");
        let final_kind = match kind {
            SessionTeardownKind::NotDeleted if self.session.is_some() => {
                let delete_session = WebDriverMessage {
                    session_id: Some(
                        self.session
                            .as_ref()
                            .expect("Failed to get session")
                            .id
                            .clone(),
                    ),
                    command: WebDriverCommand::DeleteSession,
                };
                match self.handler.handle_command(&self.session, delete_session) {
                    Ok(_) => SessionTeardownKind::Deleted,
                    Err(_) => SessionTeardownKind::NotDeleted,
                }
            }
            _ => kind,
        };
        self.handler.teardown_session(final_kind);
        self.session = None;
    }

    fn check_session(&self, msg: &WebDriverMessage<U>) -> WebDriverResult<()> {
        match msg.session_id {
            Some(ref msg_session_id) => match self.session {
                Some(ref existing_session) => {
                    if existing_session.id != *msg_session_id {
                        Err(WebDriverError::new(
                            ErrorStatus::InvalidSessionId,
                            format!("Got unexpected session id {}", msg_session_id),
                        ))
                    } else {
                        Ok(())
                    }
                }
                None => Ok(()),
            },
            None => {
                match self.session {
                    Some(_) => {
                        match msg.command {
                            WebDriverCommand::Status => Ok(()),
                            WebDriverCommand::NewSession(_) => Err(WebDriverError::new(
                                ErrorStatus::SessionNotCreated,
                                "Session is already started",
                            )),
                            _ => {
                                //This should be impossible
                                error!("Got a message with no session id");
                                Err(WebDriverError::new(
                                    ErrorStatus::UnknownError,
                                    "Got a command with no session?!",
                                ))
                            }
                        }
                    }
                    None => match msg.command {
                        WebDriverCommand::NewSession(_) => Ok(()),
                        WebDriverCommand::Status => Ok(()),
                        _ => Err(WebDriverError::new(
                            ErrorStatus::InvalidSessionId,
                            "Tried to run a command before creating a session",
                        )),
                    },
                }
            }
        }
    }
}

pub struct Listener {
    guard: Option<thread::JoinHandle<()>>,
    pub socket: SocketAddr,
}

impl Drop for Listener {
    fn drop(&mut self) {
        let _ = self.guard.take().map(|j| j.join());
    }
}

pub fn start<T, U>(
    mut address: SocketAddr,
    allow_hosts: Vec<Host>,
    allow_origins: Vec<Url>,
    handler: T,
    extension_routes: Vec<(Method, &'static str, U)>,
) -> ::std::io::Result<Listener>
where
    T: 'static + WebDriverHandler<U>,
    U: 'static + WebDriverExtensionRoute + Send + Sync,
{
    let listener = StdTcpListener::bind(address)?;
    listener.set_nonblocking(true)?;
    let addr = listener.local_addr()?;
    if address.port() == 0 {
        // If we passed in 0 as the port number the OS will assign an unused port;
        // we want to update the address to the actual used port
        address.set_port(addr.port())
    }
    let (msg_send, msg_recv) = channel();

    let builder = thread::Builder::new().name("webdriver server".to_string());
    let handle = builder.spawn(move || {
        let rt = tokio::runtime::Builder::new_current_thread()
            .enable_io()
            .build()
            .unwrap();
        let listener = rt.block_on(async { TcpListener::from_std(listener).unwrap() });
        let wroutes = build_warp_routes(
            address,
            allow_hosts,
            allow_origins,
            &extension_routes,
            msg_send.clone(),
        );
        let fut = warp::serve(wroutes).run_incoming(TcpListenerStream::new(listener));
        rt.block_on(fut);
    })?;

    let builder = thread::Builder::new().name("webdriver dispatcher".to_string());
    builder.spawn(move || {
        let mut dispatcher = Dispatcher::new(handler);
        dispatcher.run(&msg_recv);
    })?;

    Ok(Listener {
        guard: Some(handle),
        socket: addr,
    })
}

fn build_warp_routes<U: 'static + WebDriverExtensionRoute + Send + Sync>(
    address: SocketAddr,
    allow_hosts: Vec<Host>,
    allow_origins: Vec<Url>,
    ext_routes: &[(Method, &'static str, U)],
    chan: Sender<DispatchMessage<U>>,
) -> impl Filter<Extract = (impl warp::Reply,), Error = Rejection> + Clone {
    let chan = Arc::new(Mutex::new(chan));
    let mut std_routes = standard_routes::<U>();
    let (method, path, res) = std_routes.pop().unwrap();
    let mut wroutes = build_route(
        address,
        allow_hosts.clone(),
        allow_origins.clone(),
        method,
        path,
        res,
        chan.clone(),
    );
    for (method, path, res) in std_routes {
        wroutes = wroutes
            .or(build_route(
                address,
                allow_hosts.clone(),
                allow_origins.clone(),
                method,
                path,
                res.clone(),
                chan.clone(),
            ))
            .unify()
            .boxed()
    }
    for (method, path, res) in ext_routes {
        wroutes = wroutes
            .or(build_route(
                address,
                allow_hosts.clone(),
                allow_origins.clone(),
                method.clone(),
                path,
                Route::Extension(res.clone()),
                chan.clone(),
            ))
            .unify()
            .boxed()
    }
    wroutes
}

fn is_host_allowed(server_address: &SocketAddr, allow_hosts: &[Host], host_header: &str) -> bool {
    // Validate that the Host header value has a hostname in allow_hosts and
    // the port matches the server configuration
    let header_host_url = match Url::parse(&format!("http://{}", &host_header)) {
        Ok(x) => x,
        Err(_) => {
            return false;
        }
    };

    let host = match header_host_url.host() {
        Some(host) => host.to_owned(),
        None => {
            // This shouldn't be possible since http URL always have a
            // host, but conservatively return false here, which will cause
            // an error response
            return false;
        }
    };
    let port = match header_host_url.port_or_known_default() {
        Some(port) => port,
        None => {
            // This shouldn't be possible since http URL always have a
            // default port, but conservatively return false here, which will cause
            // an error response
            return false;
        }
    };

    let host_matches = match host {
        Host::Domain(_) => allow_hosts.contains(&host),
        Host::Ipv4(_) | Host::Ipv6(_) => true,
    };
    let port_matches = server_address.port() == port;
    host_matches && port_matches
}

fn is_origin_allowed(allow_origins: &[Url], origin_url: Url) -> bool {
    // Validate that the Origin header value is in allow_origins
    allow_origins.contains(&origin_url)
}

fn build_route<U: 'static + WebDriverExtensionRoute + Send + Sync>(
    server_address: SocketAddr,
    allow_hosts: Vec<Host>,
    allow_origins: Vec<Url>,
    method: Method,
    path: &'static str,
    route: Route<U>,
    chan: Arc<Mutex<Sender<DispatchMessage<U>>>>,
) -> warp::filters::BoxedFilter<(impl warp::Reply,)> {
    // Create an empty filter based on the provided method and append an empty hashmap to it. The
    // hashmap will be used to store path parameters.
    let mut subroute = match method {
        Method::GET => warp::get().boxed(),
        Method::POST => warp::post().boxed(),
        Method::DELETE => warp::delete().boxed(),
        Method::OPTIONS => warp::options().boxed(),
        Method::PUT => warp::put().boxed(),
        _ => panic!("Unsupported method"),
    }
    .or(warp::head())
    .unify()
    .map(Parameters::new)
    .boxed();

    // For each part of the path, if it's a normal part, just append it to the current filter,
    // otherwise if it's a parameter (a named enclosed in { }), we take that parameter and insert
    // it into the hashmap created earlier.
    for part in path.split('/') {
        if part.is_empty() {
            continue;
        } else if part.starts_with('{') {
            assert!(part.ends_with('}'));

            subroute = subroute
                .and(warp::path::param())
                .map(move |mut params: Parameters, param: String| {
                    let name = &part[1..part.len() - 1];
                    params.insert(name.to_string(), param);
                    params
                })
                .boxed();
        } else {
            subroute = subroute.and(warp::path(part)).boxed();
        }
    }

    // Finally, tell warp that the path is complete
    subroute
        .and(warp::path::end())
        .and(warp::path::full())
        .and(warp::method())
        .and(warp::header::optional::<String>("origin"))
        .and(warp::header::optional::<String>("host"))
        .and(warp::header::optional::<String>("content-type"))
        .and(warp::body::bytes())
        .map(
            move |params,
                  full_path: warp::path::FullPath,
                  method,
                  origin_header: Option<String>,
                  host_header: Option<String>,
                  content_type_header: Option<String>,
                  body: Bytes| {
                if method == Method::HEAD {
                    return warp::reply::with_status("".into(), StatusCode::OK);
                }
                if let Some(host) = host_header {
                    if !is_host_allowed(&server_address, &allow_hosts, &host) {
                        warn!(
                            "Rejected request with Host header {}, allowed values are [{}]",
                            host,
                            allow_hosts
                                .iter()
                                .map(|x| format!("{}:{}", x, server_address.port()))
                                .collect::<Vec<_>>()
                                .join(",")
                        );
                        let err = WebDriverError::new(
                            ErrorStatus::UnknownError,
                            format!("Invalid Host header {}", host),
                        );
                        return warp::reply::with_status(
                            serde_json::to_string(&err).unwrap(),
                            StatusCode::INTERNAL_SERVER_ERROR,
                        );
                    };
                } else {
                    warn!("Rejected request with missing Host header");
                    let err = WebDriverError::new(
                        ErrorStatus::UnknownError,
                        "Missing Host header".to_string(),
                    );
                    return warp::reply::with_status(
                        serde_json::to_string(&err).unwrap(),
                        StatusCode::INTERNAL_SERVER_ERROR,
                    );
                }
                if let Some(origin) = origin_header {
                    let make_err = || {
                        warn!(
                            "Rejected request with Origin header {}, allowed values are [{}]",
                            origin,
                            allow_origins
                                .iter()
                                .map(|x| x.to_string())
                                .collect::<Vec<_>>()
                                .join(",")
                        );
                        WebDriverError::new(
                            ErrorStatus::UnknownError,
                            format!("Invalid Origin header {}", origin),
                        )
                    };
                    let origin_url = match Url::parse(&origin) {
                        Ok(url) => url,
                        Err(_) => {
                            return warp::reply::with_status(
                                serde_json::to_string(&make_err()).unwrap(),
                                StatusCode::INTERNAL_SERVER_ERROR,
                            );
                        }
                    };
                    if !is_origin_allowed(&allow_origins, origin_url) {
                        return warp::reply::with_status(
                            serde_json::to_string(&make_err()).unwrap(),
                            StatusCode::INTERNAL_SERVER_ERROR,
                        );
                    }
                }
                if method == Method::POST {
                    // Disallow CORS-safelisted request headers
                    // c.f. https://fetch.spec.whatwg.org/#cors-safelisted-request-header
                    let content_type = content_type_header
                        .as_ref()
                        .map(|x| x.find(';').and_then(|idx| x.get(0..idx)).unwrap_or(x))
                        .map(|x| x.trim())
                        .map(|x| x.to_lowercase());
                    match content_type.as_ref().map(|x| x.as_ref()) {
                        Some("application/x-www-form-urlencoded")
                        | Some("multipart/form-data")
                        | Some("text/plain") => {
                            warn!(
                                "Rejected POST request with disallowed content type {}",
                                content_type.unwrap_or_else(|| "".into())
                            );
                            let err = WebDriverError::new(
                                ErrorStatus::UnknownError,
                                "Invalid Content-Type",
                            );
                            return warp::reply::with_status(
                                serde_json::to_string(&err).unwrap(),
                                StatusCode::INTERNAL_SERVER_ERROR,
                            );
                        }
                        Some(_) | None => {}
                    }
                }
                let body = String::from_utf8(body.chunk().to_vec());
                if body.is_err() {
                    let err = WebDriverError::new(
                        ErrorStatus::UnknownError,
                        "Request body wasn't valid UTF-8",
                    );
                    return warp::reply::with_status(
                        serde_json::to_string(&err).unwrap(),
                        StatusCode::INTERNAL_SERVER_ERROR,
                    );
                }
                let body = body.unwrap();

                debug!("-> {} {} {}", method, full_path.as_str(), body);
                let msg_result = WebDriverMessage::from_http(
                    route.clone(),
                    &params,
                    &body,
                    method == Method::POST,
                );

                let (status, resp_body) = match msg_result {
                    Ok(message) => {
                        let (send_res, recv_res) = channel();
                        match chan.lock() {
                            Ok(ref c) => {
                                let res =
                                    c.send(DispatchMessage::HandleWebDriver(message, send_res));
                                match res {
                                    Ok(x) => x,
                                    Err(e) => panic!("Error: {:?}", e),
                                }
                            }
                            Err(e) => panic!("Error reading response: {:?}", e),
                        }

                        match recv_res.recv() {
                            Ok(data) => match data {
                                Ok(response) => {
                                    (StatusCode::OK, serde_json::to_string(&response).unwrap())
                                }
                                Err(e) => (e.http_status(), serde_json::to_string(&e).unwrap()),
                            },
                            Err(e) => panic!("Error reading response: {:?}", e),
                        }
                    }
                    Err(e) => (e.http_status(), serde_json::to_string(&e).unwrap()),
                };

                debug!("<- {} {}", status, resp_body);
                warp::reply::with_status(resp_body, status)
            },
        )
        .with(warp::reply::with::header(
            http::header::CONTENT_TYPE,
            "application/json; charset=utf-8",
        ))
        .with(warp::reply::with::header(
            http::header::CACHE_CONTROL,
            "no-cache",
        ))
        .boxed()
}

#[cfg(test)]
mod tests {
    use super::*;
    use std::net::IpAddr;
    use std::str::FromStr;

    #[test]
    fn test_host_allowed() {
        let addr_80 = SocketAddr::new(IpAddr::from_str("127.0.0.1").unwrap(), 80);
        let addr_8000 = SocketAddr::new(IpAddr::from_str("127.0.0.1").unwrap(), 8000);
        let addr_v6_80 = SocketAddr::new(IpAddr::from_str("::1").unwrap(), 80);
        let addr_v6_8000 = SocketAddr::new(IpAddr::from_str("::1").unwrap(), 8000);

        // We match the host ip address to the server, so we can only use hosts that actually resolve
        let localhost_host = Host::Domain("localhost".to_string());
        let test_host = Host::Domain("example.test".to_string());
        let subdomain_localhost_host = Host::Domain("subdomain.localhost".to_string());

        assert!(is_host_allowed(
            &addr_80,
            &[localhost_host.clone()],
            "localhost:80"
        ));
        assert!(is_host_allowed(
            &addr_80,
            &[test_host.clone()],
            "example.test:80"
        ));
        assert!(is_host_allowed(
            &addr_80,
            &[test_host.clone(), localhost_host.clone()],
            "example.test"
        ));
        assert!(is_host_allowed(
            &addr_80,
            &[subdomain_localhost_host.clone()],
            "subdomain.localhost"
        ));

        // ip address cases
        assert!(is_host_allowed(&addr_80, &[], "127.0.0.1:80"));
        assert!(is_host_allowed(&addr_v6_80, &[], "127.0.0.1"));
        assert!(is_host_allowed(&addr_80, &[], "[::1]"));
        assert!(is_host_allowed(&addr_8000, &[], "127.0.0.1:8000"));
        assert!(is_host_allowed(
            &addr_80,
            &[subdomain_localhost_host.clone()],
            "[::1]"
        ));
        assert!(is_host_allowed(
            &addr_v6_8000,
            &[subdomain_localhost_host.clone()],
            "[::1]:8000"
        ));

        // Mismatch cases

        assert!(!is_host_allowed(&addr_80, &[test_host], "localhost"));

        assert!(!is_host_allowed(&addr_80, &[], "localhost:80"));

        // Port mismatch cases

        assert!(!is_host_allowed(
            &addr_80,
            &[localhost_host.clone()],
            "localhost:8000"
        ));
        assert!(!is_host_allowed(
            &addr_8000,
            &[localhost_host.clone()],
            "localhost"
        ));
        assert!(!is_host_allowed(
            &addr_v6_8000,
            &[localhost_host.clone()],
            "[::1]"
        ));
    }

    #[test]
    fn test_origin_allowed() {
        assert!(is_origin_allowed(
            &[Url::parse("http://localhost").unwrap()],
            Url::parse("http://localhost").unwrap()
        ));
        assert!(is_origin_allowed(
            &[Url::parse("http://localhost").unwrap()],
            Url::parse("http://localhost:80").unwrap()
        ));
        assert!(is_origin_allowed(
            &[
                Url::parse("https://test.example").unwrap(),
                Url::parse("http://localhost").unwrap()
            ],
            Url::parse("http://localhost").unwrap()
        ));
        assert!(is_origin_allowed(
            &[
                Url::parse("https://test.example").unwrap(),
                Url::parse("http://localhost").unwrap()
            ],
            Url::parse("https://test.example:443").unwrap()
        ));
        // Mismatch cases
        assert!(!is_origin_allowed(
            &[],
            Url::parse("http://localhost").unwrap()
        ));
        assert!(!is_origin_allowed(
            &[Url::parse("http://localhost").unwrap()],
            Url::parse("http://localhost:8000").unwrap()
        ));
        assert!(!is_origin_allowed(
            &[Url::parse("https://localhost").unwrap()],
            Url::parse("http://localhost").unwrap()
        ));
        assert!(!is_origin_allowed(
            &[Url::parse("https://example.test").unwrap()],
            Url::parse("http://subdomain.example.test").unwrap()
        ));
    }
}