feat(core): add support to setting a webview proxy, closes #4263

.changes/webview-proxy.md

@@ -0,0 +1,8 @@
+---
+'tauri': 'minor:feat'
+'tauri-utils': 'minor:feat'
+'tauri-runtime-wry': 'minor'
+'tauri-runtime': 'minor'
+---
+
+Added the `WindowConfig::proxy_url` `WebviewBuilder::proxy_url() / WebviewWindowBuilder::proxy_url()` options when creating a webview.

.github/workflows/test-core.yml

@@ -46,8 +46,8 @@ jobs:
               command: 'test'
             }
           - {
-              target: x86_64-apple-darwin,
-              os: macos-latest,
+              target: aarch64-apple-darwin,
+              os: macos-14,
               toolchain: '1.70.0',
               cross: false,
               command: 'test'

core/tauri-config-schema/schema.json

@@ -574,6 +574,14 @@
             "string",
             "null"
           ]
+        },
+        "proxyUrl": {
+          "description": "The proxy URL for the WebView for all network requests.\n\nMust be either a `http://` or a `socks5://` URL.\n\n## Platform-specific\n\n- **macOS**: Requires the `macos-proxy` feature flag and only compiles for macOS 14+.",
+          "type": [
+            "string",
+            "null"
+          ],
+          "format": "uri"
         }
       },
       "additionalProperties": false

core/tauri-runtime-wry/Cargo.toml

@@ -50,3 +50,4 @@ macos-private-api = [
 objc-exception = [ "wry/objc-exception" ]
 linux-protocol-body = [ "wry/linux-body", "webkit2gtk/v2_40" ]
 tracing = [ "dep:tracing", "wry/tracing" ]
+macos-proxy = [ "wry/mac-proxy" ]

core/tauri-runtime-wry/src/lib.rs

@@ -63,7 +63,10 @@ use tauri_utils::TitleBarStyle;
 use tauri_utils::{
   config::WindowConfig, debug_eprintln, ProgressBarState, ProgressBarStatus, Theme,
 };
-use wry::{FileDropEvent as WryFileDropEvent, Url, WebContext, WebView, WebViewBuilder};
+use wry::{
+  FileDropEvent as WryFileDropEvent, ProxyConfig, ProxyEndpoint, Url, WebContext, WebView,
+  WebViewBuilder,
+};
 
 pub use tao;
 pub use tao::window::{Window, WindowBuilder as TaoWindowBuilder, WindowId as TaoWindowId};
@@ -3111,6 +3114,23 @@ pub fn center_window(window: &Window, window_size: TaoPhysicalSize<u32>) -> Resu
   }
 }
 
+fn parse_proxy_url(url: &Url) -> Result<ProxyConfig> {
+  let host = url.host().map(|h| h.to_string()).unwrap_or_default();
+  let port = url.port().map(|p| p.to_string()).unwrap_or_default();
+
+  if url.scheme() == "http" {
+    let config = ProxyConfig::Http(ProxyEndpoint { host, port });
+
+    Ok(config)
+  } else if url.scheme() == "socks5" {
+    let config = ProxyConfig::Socks5(ProxyEndpoint { host, port });
+
+    Ok(config)
+  } else {
+    Err(Error::InvalidProxyUrl)
+  }
+}
+
 fn create_window<T: UserEvent, F: Fn(RawWindow) + Send + 'static>(
   window_id: WindowId,
   webview_id: u32,
@@ -3405,6 +3425,12 @@ fn create_webview<T: UserEvent>(
     webview_builder = webview_builder.with_user_agent(&user_agent);
   }
 
+  if let Some(proxy_url) = webview_attributes.proxy_url {
+    let config = parse_proxy_url(&proxy_url)?;
+
+    webview_builder = webview_builder.with_proxy_config(config);
+  }
+
   #[cfg(windows)]
   {
     if let Some(additional_browser_args) = webview_attributes.additional_browser_args {

core/tauri-runtime/src/lib.rs

@@ -122,6 +122,8 @@ pub enum Error {
   Infallible(#[from] std::convert::Infallible),
   #[error("the event loop has been closed")]
   EventLoopClosed,
+  #[error("Invalid proxy url")]
+  InvalidProxyUrl,
   #[error("window not found")]
   WindowNotFound,
 }

core/tauri-runtime/src/webview.rs

@@ -211,6 +211,7 @@ pub struct WebviewAttributes {
   pub transparent: bool,
   pub bounds: Option<(Position, Size)>,
   pub auto_resize: bool,
+  pub proxy_url: Option<Url>,
 }
 
 impl From<&WindowConfig> for WebviewAttributes {
@@ -234,6 +235,9 @@ impl From<&WindowConfig> for WebviewAttributes {
     if let Some(effects) = &config.window_effects {
       builder = builder.window_effects(effects.clone());
     }
+    if let Some(url) = &config.proxy_url {
+      builder = builder.proxy_url(url.to_owned());
+    }
     builder
   }
 }
@@ -255,6 +259,7 @@ impl WebviewAttributes {
       transparent: false,
       bounds: None,
       auto_resize: false,
+      proxy_url: None,
     }
   }
 
@@ -338,6 +343,13 @@ impl WebviewAttributes {
     self.auto_resize = true;
     self
   }
+
+  /// Enable proxy for the WebView
+  #[must_use]
+  pub fn proxy_url(mut self, url: Url) -> Self {
+    self.proxy_url = Some(url);
+    self
+  }
 }
 
 /// IPC handler.

core/tauri-utils/src/config.rs

@@ -1267,6 +1267,14 @@ pub struct WindowConfig {
   /// - **Linux**: This makes the new window transient for parent, see <https://docs.gtk.org/gtk3/method.Window.set_transient_for.html>
   /// - **macOS**: This adds the window as a child of parent, see <https://developer.apple.com/documentation/appkit/nswindow/1419152-addchildwindow?language=objc>
   pub parent: Option<String>,
+  /// The proxy URL for the WebView for all network requests.
+  ///
+  /// Must be either a `http://` or a `socks5://` URL.
+  ///
+  /// ## Platform-specific
+  ///
+  /// - **macOS**: Requires the `macos-proxy` feature flag and only compiles for macOS 14+.
+  pub proxy_url: Option<Url>,
 }
 
 impl Default for WindowConfig {
@@ -1311,6 +1319,7 @@ impl Default for WindowConfig {
       window_effects: None,
       incognito: false,
       parent: None,
+      proxy_url: None,
     }
   }
 }
@@ -2306,6 +2315,7 @@ mod build {
       let minimizable = self.minimizable;
       let closable = self.closable;
       let title = str_lit(&self.title);
+      let proxy_url = opt_str_lit(self.proxy_url.as_ref());
       let fullscreen = self.fullscreen;
       let focus = self.focus;
       let transparent = self.transparent;
@@ -2349,6 +2359,7 @@ mod build {
         minimizable,
         closable,
         title,
+        proxy_url,
         fullscreen,
         focus,
         transparent,

core/tauri/Cargo.toml

@@ -163,6 +163,7 @@ config-json5 = [ "tauri-macros/config-json5" ]
 config-toml = [ "tauri-macros/config-toml" ]
 icon-ico = [ "infer", "ico" ]
 icon-png = [ "infer", "png" ]
+macos-proxy = [ "tauri-runtime-wry/macos-proxy" ]
 
 [[example]]
 name = "commands"

core/tauri/src/lib.rs

@@ -35,6 +35,7 @@
 //! - **config-toml**: Adds support to TOML format for the configuration `Tauri.toml`.
 //! - **icon-ico**: Adds support to set `.ico` window icons. Enables [`Icon::File`] and [`Icon::Raw`] variants.
 //! - **icon-png**: Adds support to set `.png` window icons. Enables [`Icon::File`] and [`Icon::Raw`] variants.
+//! - **macos-proxy**: Adds support for [`WebviewBuilder::proxy_url`] on macOS. Requires macOS 14+.
 //!
 //! ## Cargo allowlist features
 //!

core/tauri/src/webview/mod.rs

@@ -758,6 +758,19 @@ fn main() {
     self
   }
 
+  /// Set a proxy URL for the WebView for all network requests.
+  ///
+  /// Must be either a `http://` or a `socks5://` URL.
+  ///
+  /// ## Platform-specific
+  ///
+  /// - **macOS**: Requires the `macos-proxy` feature flag and only compiles for macOS 14+.
+  #[must_use]
+  pub fn proxy_url(mut self, url: Url) -> Self {
+    self.webview_attributes.proxy_url = Some(url);
+    self
+  }
+
   /// Enable or disable transparency for the WebView.
   #[cfg(any(not(target_os = "macos"), feature = "macos-private-api"))]
   #[cfg_attr(

core/tauri/src/webview/webview_window.rs

@@ -824,6 +824,15 @@ fn main() {
     self.webview_builder = self.webview_builder.auto_resize();
     self
   }
+
+  /// Set a proxy URL for the WebView for all network requests.
+  ///
+  /// Must be either a `http://` or a `socks5://` URL.
+  #[must_use]
+  pub fn proxy_url(mut self, url: Url) -> Self {
+    self.webview_builder = self.webview_builder.proxy_url(url);
+    self
+  }
 }
 
 /// A type that wraps a [`Window`] together with a [`Webview`].

tooling/api/src/webview.ts

@@ -306,7 +306,7 @@ class Webview {
    * @param payload Event payload.
    */
   async emitTo(
-    target: string,
+    target: string | EventTarget,
     event: string,
     payload?: unknown
   ): Promise<void> {
@@ -791,6 +791,16 @@ interface WebviewOptions {
    * - **Android:** Unsupported.
    */
   incognito?: boolean
+  /**
+   * The proxy URL for the WebView for all network requests.
+   *
+   * Must be either a `http://` or a `socks5://` URL.
+   *
+   * #### Platform-specific
+   *
+   * - **macOS**: Requires the `macos-proxy` feature flag and only compiles for macOS 14+.
+   * */
+  proxyUrl?: string
 }
 
 export { Webview, WebviewWindow, getCurrent, getAll }

tooling/cli/schema.json

@@ -574,6 +574,14 @@
             "string",
             "null"
           ]
+        },
+        "proxyUrl": {
+          "description": "The proxy URL for the WebView for all network requests.\n\nMust be either a `http://` or a `socks5://` URL.\n\n## Platform-specific\n\n- **macOS**: Requires the `macos-proxy` feature flag and only compiles for macOS 14+.",
+          "type": [
+            "string",
+            "null"
+          ],
+          "format": "uri"
         }
       },
       "additionalProperties": false