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feat: add Webview::custom_protocol_async #29

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Merged
richerfu merged 1 commit into from
Aug 21, 2025
Merged

feat: add Webview::custom_protocol_async #29

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132 changes: 91 additions & 41 deletions crates/ability/src/helper/webview.rs
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Original file line number Diff line number Diff line change
@@ -1,4 +1,9 @@
use std::{borrow::Cow, collections::HashMap, rc::Rc};
use std::{
borrow::Cow,
collections::HashMap,
rc::Rc,
sync::{Arc, Mutex},
};

use http::{HeaderName, HeaderValue, Request, Response};
use napi_derive_ohos::napi;
Expand Down Expand Up @@ -310,22 +315,39 @@ impl Webview {
where
S: Into<String>,
F: Fn(&str, Request<Vec<u8>>, bool) -> Option<Response<Cow<'static, [u8]>>>,
{
self.custom_protocol_async(protocol, move |url, request, is_main_frame, responder| {
let response = callback(url, request, is_main_frame);
if let Some(response) = response {
responder.respond(response);
}
})
}

pub fn custom_protocol_async<S, F>(&self, protocol: S, callback: F) -> Result<()>
where
S: Into<String>,
F: Fn(&str, Request<Vec<u8>>, bool, CustomProtocolResponder),
{
let handle = CustomProtocolHandler::new();
let cbs = Box::leak(Box::new(callback));
let cbs = Arc::new(Mutex::new(cbs));

handle.on_request_start(|req, req_handle| {
handle.on_request_start(move |req, req_handle| {
let url: String = req.url().into();
let header = req.headers();
let mut iter = header.iter();

let request_body = req.http_body_stream();

let mut req_handle = Some(req_handle);

match request_body {
Some(body) => {
let request_body_size = body.size();

body.read(request_body_size as usize, |buf| {
let cbs = cbs.clone();
body.read(request_body_size as usize, move |buf| {
let mut request_builder = Request::builder()
.method(req.method().as_str())
.uri(url.clone());
Expand All @@ -340,28 +362,38 @@ impl Webview {
let request = request_builder
.body(buf)
.expect("Create http:Request failed");
let response = cbs(&url, request, req.is_main_frame());
if let Some(response) = response {
let header = response.headers();
let body = response.body();
let status = response.status();
let body_slice = match body {
Cow::Borrowed(slice) => slice,
Cow::Owned(vec) => vec.as_slice(),
};

let resp = ArkWebResponse::new();

header.iter().for_each(|(k, v)| {
resp.set_header(k.as_str(), v.to_str().unwrap_or_default(), true);
});

resp.set_status(status.as_u16() as _);
let cbs = cbs.clone();
let req_handle = req_handle.take().unwrap();
let responder = CustomProtocolResponder {
responder: Box::new(move |response| {
let header = response.headers();
let body = response.body();
let status = response.status();
let body_slice = match body {
Cow::Borrowed(slice) => slice,
Cow::Owned(vec) => vec.as_slice(),
};

let resp = ArkWebResponse::new();

header.iter().for_each(|(k, v)| {
resp.set_header(
k.as_str(),
v.to_str().unwrap_or_default(),
true,
);
});

resp.set_status(status.as_u16() as _);

req_handle.receive_response(resp);
req_handle.receive_data(body_slice);
req_handle.finish()
}),
};

req_handle.receive_response(resp);
req_handle.receive_data(body_slice);
req_handle.finish();
}
cbs.lock().unwrap()(&url, request, req.is_main_frame(), responder);
});
}
None => {
Expand All @@ -379,27 +411,31 @@ impl Webview {
let request = request_builder
.body(vec![])
.expect("Create http:Request failed");
let response = cbs(&url, request, req.is_main_frame());
if let Some(response) = response {
let header = response.headers();
let status = response.status();
let body = response.body();
let body_slice = match body {
Cow::Borrowed(slice) => slice,
Cow::Owned(vec) => vec.as_slice(),
};

let resp = ArkWebResponse::new();
let responder = CustomProtocolResponder {
responder: Box::new(move |response| {
let header = response.headers();
let status = response.status();
let body = response.body();
let body_slice = match body {
Cow::Borrowed(slice) => slice,
Cow::Owned(vec) => vec.as_slice(),
};

header.iter().for_each(|(k, v)| {
resp.set_header(k.as_str(), v.to_str().unwrap_or_default(), true);
});
resp.set_status(status.as_u16() as _);
let resp = ArkWebResponse::new();

req_handle.receive_response(resp);
req_handle.receive_data(body_slice);
req_handle.finish();
}
header.iter().for_each(|(k, v)| {
resp.set_header(k.as_str(), v.to_str().unwrap_or_default(), true);
});
resp.set_status(status.as_u16() as _);

let req_handle = req_handle.take().unwrap();
req_handle.receive_response(resp);
req_handle.receive_data(body_slice);
req_handle.finish();
}),
};
cbs.lock().unwrap()(&url, request, req.is_main_frame(), responder);
}
}

Expand All @@ -413,3 +449,17 @@ impl Webview {
Ok(())
}
}

pub struct CustomProtocolResponder {
pub(crate) responder: Box<dyn FnOnce(Response<Cow<'static, [u8]>>)>,
}

unsafe impl Send for CustomProtocolResponder {}

impl CustomProtocolResponder {
/// Resolves the request with the given response.
pub fn respond<T: Into<Cow<'static, [u8]>>>(self, response: Response<T>) {
let (parts, body) = response.into_parts();
(self.responder)(Response::from_parts(parts, body.into()))
}
}