Prompt user for credentials when http request needs it (#34620)

* prompt user to get their credentials

Signed-off-by: Lloyd Massiah artmis9@protonmail.com

move credential prompt to a function

Signed-off-by: Lloyd Massiah <artmis9@protonmail.com>

* add prompt for step 15.4

Signed-off-by: Lloyd Massiah <artmis9@protonmail.com>

* add new prompt definition for user credentials

Signed-off-by: Lloyd Massiah <artmis9@protonmail.com>

* remove default implementation for HttpState which allowed making the embedder_proxy non-optional

- default implementation was only used in tests so created an alternative create_http_state function

Signed-off-by: Lloyd Massiah <artmis9@protonmail.com>

add credentials to authentication cache

Signed-off-by: Lloyd Massiah <artmis9@protonmail.com>

* add tests that are successful for the happy path

Signed-off-by: Lloyd Massiah <artmis9@protonmail.com>

* add test for user cancels prompt and user inputs incorrect credentials, and refactor shared code between tests

Signed-off-by: Lloyd Massiah <artmis9@protonmail.com>

* handle error when setting username and password in Url and ran formatting

Signed-off-by: Lloyd Massiah <artmis9@protonmail.com>

renaming test functions

Signed-off-by: Lloyd Massiah <artmis9@protonmail.com>

* change authentication flag to false for proxy authentication. The spec doesn't specify that the flag should be true, and the flag is by default false

Signed-off-by: Lloyd Massiah <artmis9@protonmail.com>

* clean up test code a bit

Signed-off-by: Lloyd Massiah <artmis9@protonmail.com>

* add skeleton implementation to support open harmony and android

Signed-off-by: Lloyd Massiah <artmis9@protonmail.com>

* update warning message to include Android

Signed-off-by: Lloyd Massiah <artmis9@protonmail.com>

* fix build error for OH os and Android

Signed-off-by: Lloyd Massiah <artmis9@protonmail.com>

* remove unused import to fix warning

Signed-off-by: Lloyd Massiah <artmis9@protonmail.com>

---------

Signed-off-by: Lloyd Massiah <artmis9@protonmail.com>
Co-authored-by: lazypassion <25536767+lazypassion@users.noreply.github.com>

components/net/http_loader.rs

@@ -16,6 +16,9 @@ use devtools_traits::{
     ChromeToDevtoolsControlMsg, DevtoolsControlMsg, HttpRequest as DevtoolsHttpRequest,
     HttpResponse as DevtoolsHttpResponse, NetworkEvent,
 };
+use embedder_traits::{
+    EmbedderMsg, EmbedderProxy, PromptCredentialsInput, PromptDefinition, PromptOrigin,
+};
 use futures::{future, StreamExt, TryFutureExt, TryStreamExt};
 use headers::authorization::Basic;
 use headers::{
@@ -60,10 +63,7 @@ use tokio::sync::mpsc::{
 use tokio_stream::wrappers::ReceiverStream;
 
 use crate::async_runtime::HANDLE;
-use crate::connector::{
+use crate::connector::{CertificateErrorOverrideManager, Connector};
-    create_http_client, create_tls_config, CACertificates, CertificateErrorOverrideManager,
-    Connector,
-};
 use crate::cookie::ServoCookie;
 use crate::cookie_storage::CookieStorage;
 use crate::decoder::Decoder;
@@ -72,7 +72,7 @@ use crate::fetch::headers::{SecFetchDest, SecFetchMode, SecFetchSite, SecFetchUs
 use crate::fetch::methods::{main_fetch, Data, DoneChannel, FetchContext, Target};
 use crate::hsts::HstsList;
 use crate::http_cache::{CacheKey, HttpCache};
-use crate::resource_thread::AuthCache;
+use crate::resource_thread::{AuthCache, AuthCacheEntry};
 
 /// <https://fetch.spec.whatwg.org/#document-accept-header-value>
 pub const DOCUMENT_ACCEPT_HEADER_VALUE: HeaderValue =
@@ -103,26 +103,7 @@ pub struct HttpState {
     pub history_states: RwLock<HashMap<HistoryStateId, Vec<u8>>>,
     pub client: Client<Connector, Body>,
     pub override_manager: CertificateErrorOverrideManager,
-}
+    pub embedder_proxy: Mutex<EmbedderProxy>,
-
-impl Default for HttpState {
-    fn default() -> Self {
-        let override_manager = CertificateErrorOverrideManager::new();
-        Self {
-            hsts_list: RwLock::new(HstsList::default()),
-            cookie_jar: RwLock::new(CookieStorage::new(150)),
-            auth_cache: RwLock::new(AuthCache::default()),
-            history_states: RwLock::new(HashMap::new()),
-            http_cache: RwLock::new(HttpCache::default()),
-            http_cache_state: Mutex::new(HashMap::new()),
-            client: create_http_client(create_tls_config(
-                CACertificates::Default,
-                false, /* ignore_certificate_errors */
-                override_manager.clone(),
-            )),
-            override_manager,
-        }
-    }
 }
 
 /// Step 13 of <https://fetch.spec.whatwg.org/#concept-fetch>.
@@ -1590,12 +1571,26 @@ async fn http_network_or_cache_fetch(
 
         // Step 14.3 If request’s use-URL-credentials flag is unset or isAuthenticationFetch is true, then:
         if !http_request.use_url_credentials || authentication_fetch_flag {
-            // TODO(#33616, #27439): Prompt the user for username and password from the window
+            let Some(credentials) = prompt_user_for_credentials(&context.state.embedder_proxy)
+            else {
+                return response;
+            };
+            let Some(username) = credentials.username else {
+                return response;
+            };
+            let Some(password) = credentials.password else {
+                return response;
+            };
 
-            // Wrong, but will have to do until we are able to prompt the user
+            if let Err(err) = http_request.current_url_mut().set_username(&username) {
-            // otherwise this creates an infinite loop
+                error!("error setting username for url: {:?}", err);
-            // We basically pretend that the user declined to enter credentials (#33616)
+                return response;
-            return response;
+            };
+
+            if let Err(err) = http_request.current_url_mut().set_password(Some(&password)) {
+                error!("error setting password for url: {:?}", err);
+                return response;
+            };
         }
 
         // Make sure this is set to None,
@@ -1627,15 +1622,43 @@ async fn http_network_or_cache_fetch(
 
         // TODO(#33616): Step 15.3 If fetchParams is canceled, then return
         // the appropriate network error for fetchParams.
-        // TODO(#33616): Step 15.4 Prompt the end user as appropriate in request’s window and store the
+
-        // result as a proxy-authentication entry.
+        // Step 15.4 Prompt the end user as appropriate in request’s window
+        // window and store the result as a proxy-authentication entry.
+        let Some(credentials) = prompt_user_for_credentials(&context.state.embedder_proxy) else {
+            return response;
+        };
+        let Some(user_name) = credentials.username else {
+            return response;
+        };
+        let Some(password) = credentials.password else {
+            return response;
+        };
+
+        // store the credentials as a proxy-authentication entry.
+        let entry = AuthCacheEntry {
+            user_name,
+            password,
+        };
+        {
+            let mut auth_cache = context.state.auth_cache.write().unwrap();
+            let key = http_request.current_url().origin().ascii_serialization();
+            auth_cache.entries.insert(key, entry);
+        }
+
+        // Make sure this is set to None,
+        // since we're about to start a new `http_network_or_cache_fetch`.
+        *done_chan = None;
 
         // Step 15.5 Set response to the result of running HTTP-network-or-cache fetch given fetchParams.
-
+        response = http_network_or_cache_fetch(
-        // Wrong, but will have to do until we are able to prompt the user
+            http_request,
-        // otherwise this creates an infinite loop
+            false, /* authentication flag */
-        // We basically pretend that the user declined to enter credentials (#33616)
+            cors_flag,
-        return response;
+            done_chan,
+            context,
+        )
+        .await;
     }
 
     // TODO(#33616): Step 16. If all of the following are true:
@@ -1737,6 +1760,29 @@ impl Drop for ResponseEndTimer {
     }
 }
 
+fn prompt_user_for_credentials(
+    embedder_proxy: &Mutex<EmbedderProxy>,
+) -> Option<PromptCredentialsInput> {
+    let proxy = embedder_proxy.lock().unwrap();
+
+    let (ipc_sender, ipc_receiver) = ipc::channel().unwrap();
+
+    proxy.send((
+        None,
+        EmbedderMsg::Prompt(
+            PromptDefinition::Credentials(ipc_sender),
+            PromptOrigin::Trusted,
+        ),
+    ));
+
+    let Ok(credentials) = ipc_receiver.recv() else {
+        warn!("error getting user credentials");
+        return None;
+    };
+
+    Some(credentials)
+}
+
 /// [HTTP network fetch](https://fetch.spec.whatwg.org/#http-network-fetch)
 async fn http_network_fetch(
     request: &mut Request,

components/net/resource_thread.rs

@@ -132,7 +132,7 @@ pub fn new_core_resource_thread(
                 user_agent,
                 devtools_sender,
                 time_profiler_chan,
-                embedder_proxy,
+                embedder_proxy.clone(),
                 ca_certificates.clone(),
                 ignore_certificate_errors,
             );
@@ -151,6 +151,7 @@ pub fn new_core_resource_thread(
                         private_setup_port,
                         report_port,
                         protocols,
+                        embedder_proxy,
                     )
                 },
                 String::from("network-cache-reporter"),
@@ -173,6 +174,7 @@ fn create_http_states(
     config_dir: Option<&Path>,
     ca_certificates: CACertificates,
     ignore_certificate_errors: bool,
+    embedder_proxy: EmbedderProxy,
 ) -> (Arc<HttpState>, Arc<HttpState>) {
     let mut hsts_list = HstsList::from_servo_preload();
     let mut auth_cache = AuthCache::default();
@@ -198,6 +200,7 @@ fn create_http_states(
             override_manager.clone(),
         )),
         override_manager,
+        embedder_proxy: Mutex::new(embedder_proxy.clone()),
     };
 
     let override_manager = CertificateErrorOverrideManager::new();
@@ -214,6 +217,7 @@ fn create_http_states(
             override_manager.clone(),
         )),
         override_manager,
+        embedder_proxy: Mutex::new(embedder_proxy),
     };
 
     (Arc::new(http_state), Arc::new(private_http_state))
@@ -227,11 +231,13 @@ impl ResourceChannelManager {
         private_receiver: IpcReceiver<CoreResourceMsg>,
         memory_reporter: IpcReceiver<ReportsChan>,
         protocols: Arc<ProtocolRegistry>,
+        embedder_proxy: EmbedderProxy,
     ) {
         let (public_http_state, private_http_state) = create_http_states(
             self.config_dir.as_deref(),
             self.ca_certificates.clone(),
             self.ignore_certificate_errors,
+            embedder_proxy,
         );
 
         let mut rx_set = IpcReceiverSet::new().unwrap();

components/net/tests/fetch.rs

@@ -29,7 +29,6 @@ use net::filemanager_thread::FileManager;
 use net::hsts::HstsEntry;
 use net::protocols::ProtocolRegistry;
 use net::resource_thread::CoreResourceThreadPool;
-use net::test::HttpState;
 use net_traits::filemanager_thread::FileTokenCheck;
 use net_traits::http_status::HttpStatus;
 use net_traits::request::{
@@ -47,8 +46,8 @@ use uuid::Uuid;
 
 use crate::http_loader::{expect_devtools_http_request, expect_devtools_http_response};
 use crate::{
-    create_embedder_proxy, fetch, fetch_with_context, fetch_with_cors_cache, make_server,
+    create_embedder_proxy, create_http_state, fetch, fetch_with_context, fetch_with_cors_cache,
-    make_ssl_server, new_fetch_context, DEFAULT_USER_AGENT,
+    make_server, make_ssl_server, new_fetch_context, DEFAULT_USER_AGENT,
 };
 
 // TODO write a struct that impls Handler for storing test values
@@ -669,7 +668,7 @@ fn test_fetch_with_hsts() {
     let (server, url) = make_ssl_server(handler);
 
     let mut context = FetchContext {
-        state: Arc::new(HttpState::default()),
+        state: Arc::new(create_http_state(None)),
         user_agent: DEFAULT_USER_AGENT.into(),
         devtools_chan: None,
         filemanager: Arc::new(Mutex::new(FileManager::new(
@@ -724,7 +723,7 @@ fn test_load_adds_host_to_hsts_list_when_url_is_https() {
     url.as_mut_url().set_scheme("https").unwrap();
 
     let mut context = FetchContext {
-        state: Arc::new(HttpState::default()),
+        state: Arc::new(create_http_state(None)),
         user_agent: DEFAULT_USER_AGENT.into(),
         devtools_chan: None,
         filemanager: Arc::new(Mutex::new(FileManager::new(
@@ -781,7 +780,7 @@ fn test_fetch_self_signed() {
     url.as_mut_url().set_scheme("https").unwrap();
 
     let mut context = FetchContext {
-        state: Arc::new(HttpState::default()),
+        state: Arc::new(create_http_state(None)),
         user_agent: DEFAULT_USER_AGENT.into(),
         devtools_chan: None,
         filemanager: Arc::new(Mutex::new(FileManager::new(

components/net/tests/http_loader.rs

@@ -6,7 +6,6 @@
 
 use std::collections::HashMap;
 use std::io::Write;
-use std::str;
 use std::sync::atomic::{AtomicBool, Ordering};
 use std::sync::{Arc, Mutex, RwLock};
 use std::time::Duration;
@@ -47,7 +46,10 @@ use servo_url::{ImmutableOrigin, ServoUrl};
 use tokio_test::block_on;
 use url::Url;
 
-use crate::{fetch, fetch_with_context, make_server, new_fetch_context};
+use crate::{
+    create_embedder_proxy_and_receiver, fetch, fetch_with_context, make_server, new_fetch_context,
+    receive_credential_prompt_msgs,
+};
 
 fn mock_origin() -> ImmutableOrigin {
     ServoUrl::parse("http://servo.org").unwrap().origin()
@@ -1479,3 +1481,180 @@ fn test_origin_serialization_compatability() {
 
     ensure_serialiations_match("data:,dataurltexta");
 }
+
+#[test]
+fn test_user_credentials_prompt_when_proxy_authentication_is_required() {
+    let handler = move |request: HyperRequest<Body>, response: &mut HyperResponse<Body>| {
+        let expected = Authorization::basic("username", "test");
+        if let Some(credentials) = request.headers().typed_get::<Authorization<Basic>>() {
+            if credentials == expected {
+                *response.status_mut() = StatusCode::OK;
+            } else {
+                *response.status_mut() = StatusCode::UNAUTHORIZED;
+            }
+        } else {
+            *response.status_mut() = StatusCode::PROXY_AUTHENTICATION_REQUIRED;
+        }
+    };
+    let (server, url) = make_server(handler);
+
+    let mut request = RequestBuilder::new(url.clone(), Referrer::NoReferrer)
+        .method(Method::GET)
+        .body(None)
+        .destination(Destination::Document)
+        .origin(mock_origin())
+        .pipeline_id(Some(TEST_PIPELINE_ID))
+        .credentials_mode(CredentialsMode::Include)
+        .build();
+
+    let (embedder_proxy, embedder_receiver) = create_embedder_proxy_and_receiver();
+    let _ = receive_credential_prompt_msgs(
+        embedder_receiver,
+        Some("username".to_string()),
+        Some("test".to_string()),
+    );
+
+    let mut context = new_fetch_context(None, Some(embedder_proxy), None);
+
+    let response = fetch_with_context(&mut request, &mut context);
+
+    let _ = server.close();
+
+    assert!(response
+        .internal_response
+        .unwrap()
+        .status
+        .code()
+        .is_success());
+}
+
+#[test]
+fn test_prompt_credentials_when_client_receives_unauthorized_response() {
+    let handler = move |request: HyperRequest<Body>, response: &mut HyperResponse<Body>| {
+        let expected = Authorization::basic("username", "test");
+        if let Some(credentials) = request.headers().typed_get::<Authorization<Basic>>() {
+            if credentials == expected {
+                *response.status_mut() = StatusCode::OK;
+            } else {
+                *response.status_mut() = StatusCode::UNAUTHORIZED;
+            }
+        } else {
+            *response.status_mut() = StatusCode::UNAUTHORIZED;
+        }
+    };
+    let (server, url) = make_server(handler);
+
+    let mut request = RequestBuilder::new(url.clone(), Referrer::NoReferrer)
+        .method(Method::GET)
+        .body(None)
+        .destination(Destination::Document)
+        .origin(mock_origin())
+        .pipeline_id(Some(TEST_PIPELINE_ID))
+        .credentials_mode(CredentialsMode::Include)
+        .build();
+
+    let (embedder_proxy, embedder_receiver) = create_embedder_proxy_and_receiver();
+    let _ = receive_credential_prompt_msgs(
+        embedder_receiver,
+        Some("username".to_string()),
+        Some("test".to_string()),
+    );
+    let mut context = new_fetch_context(None, Some(embedder_proxy), None);
+
+    let response = fetch_with_context(&mut request, &mut context);
+
+    server.close();
+
+    assert!(response
+        .internal_response
+        .unwrap()
+        .status
+        .code()
+        .is_success());
+}
+
+#[test]
+fn test_prompt_credentials_user_cancels_dialog_input() {
+    let handler = move |request: HyperRequest<Body>, response: &mut HyperResponse<Body>| {
+        let expected = Authorization::basic("username", "test");
+        if let Some(credentials) = request.headers().typed_get::<Authorization<Basic>>() {
+            if credentials == expected {
+                *response.status_mut() = StatusCode::OK;
+            } else {
+                *response.status_mut() = StatusCode::UNAUTHORIZED;
+            }
+        } else {
+            *response.status_mut() = StatusCode::UNAUTHORIZED;
+        }
+    };
+    let (server, url) = make_server(handler);
+
+    let mut request = RequestBuilder::new(url.clone(), Referrer::NoReferrer)
+        .method(Method::GET)
+        .body(None)
+        .destination(Destination::Document)
+        .origin(mock_origin())
+        .pipeline_id(Some(TEST_PIPELINE_ID))
+        .credentials_mode(CredentialsMode::Include)
+        .build();
+
+    let (embedder_proxy, embedder_receiver) = create_embedder_proxy_and_receiver();
+    let _ = receive_credential_prompt_msgs(embedder_receiver, None, None);
+    let mut context = new_fetch_context(None, Some(embedder_proxy), None);
+
+    let response = fetch_with_context(&mut request, &mut context);
+
+    server.close();
+
+    assert!(response
+        .internal_response
+        .unwrap()
+        .status
+        .code()
+        .is_client_error());
+}
+
+#[test]
+fn test_prompt_credentials_user_input_incorrect_credentials() {
+    let handler = move |request: HyperRequest<Body>, response: &mut HyperResponse<Body>| {
+        let expected = Authorization::basic("username", "test");
+        if let Some(credentials) = request.headers().typed_get::<Authorization<Basic>>() {
+            if credentials == expected {
+                *response.status_mut() = StatusCode::OK;
+            } else {
+                *response.status_mut() = StatusCode::UNAUTHORIZED;
+            }
+        } else {
+            *response.status_mut() = StatusCode::UNAUTHORIZED;
+        }
+    };
+    let (server, url) = make_server(handler);
+
+    let mut request = RequestBuilder::new(url.clone(), Referrer::NoReferrer)
+        .method(Method::GET)
+        .body(None)
+        .destination(Destination::Document)
+        .origin(mock_origin())
+        .pipeline_id(Some(TEST_PIPELINE_ID))
+        .credentials_mode(CredentialsMode::Include)
+        .build();
+
+    let (embedder_proxy, embedder_receiver) = create_embedder_proxy_and_receiver();
+    let _ = receive_credential_prompt_msgs(
+        embedder_receiver,
+        Some("test".to_string()),
+        Some("test".to_string()),
+    );
+    let mut context = new_fetch_context(None, Some(embedder_proxy), None);
+
+    let response = fetch_with_context(&mut request, &mut context);
+
+    server.close();
+
+    assert!(response
+        .internal_response
+        .unwrap()
+        .status
+        .code()
+        .is_client_error());
+}

components/net/tests/main.rs

@@ -19,21 +19,23 @@ mod resource_thread;
 mod subresource_integrity;
 
 use core::convert::Infallible;
+use std::collections::HashMap;
 use std::fs::File;
 use std::io::{self, BufReader};
 use std::net::TcpListener as StdTcpListener;
 use std::path::{Path, PathBuf};
-use std::sync::{Arc, LazyLock, Mutex, Weak};
+use std::sync::{Arc, LazyLock, Mutex, RwLock, Weak};
 
 use crossbeam_channel::{unbounded, Sender};
 use devtools_traits::DevtoolsControlMsg;
-use embedder_traits::{EmbedderProxy, EventLoopWaker};
+use embedder_traits::{EmbedderProxy, EmbedderReceiver, EventLoopWaker};
 use futures::future::ready;
 use futures::StreamExt;
 use hyper::server::conn::Http;
 use hyper::server::Server as HyperServer;
 use hyper::service::{make_service_fn, service_fn};
 use hyper::{Body, Request as HyperRequest, Response as HyperResponse};
+use net::connector::{create_http_client, create_tls_config};
 use net::fetch::cors_cache::CorsCache;
 use net::fetch::methods::{self, CancellationListener, FetchContext};
 use net::filemanager_thread::FileManager;
@@ -95,6 +97,76 @@ fn create_embedder_proxy() -> EmbedderProxy {
     }
 }
 
+fn create_embedder_proxy_and_receiver() -> (EmbedderProxy, EmbedderReceiver) {
+    let (sender, receiver) = unbounded();
+    let event_loop_waker = || {
+        struct DummyEventLoopWaker {}
+        impl DummyEventLoopWaker {
+            fn new() -> DummyEventLoopWaker {
+                DummyEventLoopWaker {}
+            }
+        }
+        impl embedder_traits::EventLoopWaker for DummyEventLoopWaker {
+            fn wake(&self) {}
+            fn clone_box(&self) -> Box<dyn embedder_traits::EventLoopWaker> {
+                Box::new(DummyEventLoopWaker {})
+            }
+        }
+
+        Box::new(DummyEventLoopWaker::new())
+    };
+
+    let embedder_proxy = embedder_traits::EmbedderProxy {
+        sender: sender.clone(),
+        event_loop_waker: event_loop_waker(),
+    };
+
+    let embedder_receiver = EmbedderReceiver { receiver };
+    (embedder_proxy, embedder_receiver)
+}
+
+fn receive_credential_prompt_msgs(
+    mut embedder_receiver: EmbedderReceiver,
+    username: Option<String>,
+    password: Option<String>,
+) -> std::thread::JoinHandle<()> {
+    std::thread::spawn(move || {
+        let (_browser_context_id, embedder_msg) = embedder_receiver.recv_embedder_msg();
+        match embedder_msg {
+            embedder_traits::EmbedderMsg::Prompt(prompt_definition, _prompt_origin) => {
+                match prompt_definition {
+                    embedder_traits::PromptDefinition::Credentials(ipc_sender) => {
+                        ipc_sender
+                            .send(embedder_traits::PromptCredentialsInput { username, password })
+                            .unwrap();
+                    },
+                    _ => unreachable!(),
+                }
+            },
+            _ => unreachable!(),
+        }
+    })
+}
+
+fn create_http_state(fc: Option<EmbedderProxy>) -> HttpState {
+    let override_manager = net::connector::CertificateErrorOverrideManager::new();
+    HttpState {
+        hsts_list: RwLock::new(net::hsts::HstsList::default()),
+        cookie_jar: RwLock::new(net::cookie_storage::CookieStorage::new(150)),
+        auth_cache: RwLock::new(net::resource_thread::AuthCache::default()),
+        history_states: RwLock::new(HashMap::new()),
+        http_cache: RwLock::new(net::http_cache::HttpCache::default()),
+        http_cache_state: Mutex::new(HashMap::new()),
+        client: create_http_client(create_tls_config(
+            net::connector::CACertificates::Default,
+            false, /* ignore_certificate_errors */
+            override_manager.clone(),
+        )),
+        override_manager,
+        embedder_proxy: Mutex::new(fc.unwrap_or_else(|| create_embedder_proxy())),
+    }
+}
+
 fn new_fetch_context(
     dc: Option<Sender<DevtoolsControlMsg>>,
     fc: Option<EmbedderProxy>,
@@ -103,7 +175,7 @@ fn new_fetch_context(
     let sender = fc.unwrap_or_else(|| create_embedder_proxy());
 
     FetchContext {
-        state: Arc::new(HttpState::default()),
+        state: Arc::new(create_http_state(Some(sender.clone()))),
         user_agent: DEFAULT_USER_AGENT.into(),
         devtools_chan: dc.map(|dc| Arc::new(Mutex::new(dc))),
         filemanager: Arc::new(Mutex::new(FileManager::new(

components/shared/embedder/lib.rs

@@ -131,6 +131,16 @@ pub enum PromptDefinition {
     YesNo(String, IpcSender<PromptResult>),
     /// Ask the user to enter text.
     Input(String, String, IpcSender<Option<String>>),
+    /// Ask user to enter their username and password
+    Credentials(IpcSender<PromptCredentialsInput>),
+}
+
+#[derive(Debug, Deserialize, Serialize)]
+pub struct PromptCredentialsInput {
+    /// Username for http request authentication
+    pub username: Option<String>,
+    /// Password for http request authentication
+    pub password: Option<String>,
 }
 
 #[derive(Deserialize, PartialEq, Serialize)]

ports/servoshell/desktop/webview.rs

@@ -21,8 +21,8 @@ use servo::base::id::TopLevelBrowsingContextId as WebViewId;
 use servo::compositing::windowing::{EmbedderEvent, WebRenderDebugOption};
 use servo::embedder_traits::{
     CompositorEventVariant, ContextMenuResult, DualRumbleEffectParams, EmbedderMsg, FilterPattern,
-    GamepadHapticEffectType, PermissionPrompt, PermissionRequest, PromptDefinition, PromptOrigin,
+    GamepadHapticEffectType, PermissionPrompt, PermissionRequest, PromptCredentialsInput,
-    PromptResult,
+    PromptDefinition, PromptOrigin, PromptResult,
 };
 use servo::ipc_channel::ipc::IpcSender;
 use servo::script_traits::{
@@ -697,6 +697,12 @@ where
                             PromptDefinition::Input(_message, default, sender) => {
                                 sender.send(Some(default.to_owned()))
                             },
+                            PromptDefinition::Credentials(sender) => {
+                                sender.send(PromptCredentialsInput {
+                                    username: None,
+                                    password: None,
+                                })
+                            },
                         }
                     } else {
                         thread::Builder::new()
@@ -751,6 +757,12 @@ where
                                     let result = tinyfiledialogs::input_box("", &message, &default);
                                     sender.send(result)
                                 },
+                                PromptDefinition::Credentials(sender) => {
+                                    // TODO: figure out how to make the message a localized string
+                                    let username = tinyfiledialogs::input_box("", "username", "");
+                                    let password = tinyfiledialogs::input_box("", "password", "");
+                                    sender.send(PromptCredentialsInput { username, password })
+                                },
                             })
                             .unwrap()
                             .join()

ports/servoshell/egl/servo_glue.rs

@@ -512,6 +512,10 @@ impl ServoGlue {
                         PromptDefinition::Input(message, default, sender) => {
                             sender.send(cb.prompt_input(message, default, trusted))
                         },
+                        PromptDefinition::Credentials(_) => {
+                            warn!("implement credentials prompt for OpenHarmony OS and Android");
+                            Ok(())
+                        },
                     };
                     if let Err(e) = res {
                         let reason = format!("Failed to send Prompt response: {}", e);