Files
browser/src/main.zig
Francis Bouvier b8ec53f708 Adapt to js_exec changes in zig-js-runtime
Signed-off-by: Francis Bouvier <francis@lightpanda.io>
2024-07-18 12:10:06 +02:00

114 lines
3.3 KiB
Zig

// Copyright (C) 2023-2024 Lightpanda (Selecy SAS)
//
// Francis Bouvier <francis@lightpanda.io>
// Pierre Tachoire <pierre@lightpanda.io>
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as
// published by the Free Software Foundation, either version 3 of the
// License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <https://www.gnu.org/licenses/>.
const std = @import("std");
const jsruntime = @import("jsruntime");
const parser = @import("netsurf");
const apiweb = @import("apiweb.zig");
const Window = @import("html/window.zig").Window;
pub const Types = jsruntime.reflect(apiweb.Interfaces);
pub const UserContext = apiweb.UserContext;
const socket_path = "/tmp/browsercore-server.sock";
var doc: *parser.DocumentHTML = undefined;
var server: std.net.Server = undefined;
fn execJS(
alloc: std.mem.Allocator,
js_env: *jsruntime.Env,
) anyerror!void {
// start JS env
try js_env.start();
defer js_env.stop();
// alias global as self and window
var window = Window.create(null);
window.replaceDocument(doc);
try js_env.bindGlobal(window);
// try catch
var try_catch: jsruntime.TryCatch = undefined;
try_catch.init(js_env.*);
defer try_catch.deinit();
while (true) {
// read cmd
const conn = try server.accept();
var buf: [100]u8 = undefined;
const read = try conn.stream.read(&buf);
const cmd = buf[0..read];
std.debug.print("<- {s}\n", .{cmd});
if (std.mem.eql(u8, cmd, "exit")) {
break;
}
const res = try js_env.exec(cmd, "cdp");
const res_str = try res.toString(alloc, js_env.*);
defer alloc.free(res_str);
std.debug.print("-> {s}\n", .{res_str});
_ = try conn.stream.write(res_str);
}
}
pub fn main() !void {
// create v8 vm
const vm = jsruntime.VM.init();
defer vm.deinit();
// alloc
var arena = std.heap.ArenaAllocator.init(std.heap.page_allocator);
defer arena.deinit();
try parser.init();
defer parser.deinit();
// document
const file = try std.fs.cwd().openFile("test.html", .{});
defer file.close();
doc = try parser.documentHTMLParse(file.reader(), "UTF-8");
defer parser.documentHTMLClose(doc) catch |err| {
std.debug.print("documentHTMLClose error: {s}\n", .{@errorName(err)});
};
// remove socket file of internal server
// reuse_address (SO_REUSEADDR flag) does not seems to work on unix socket
// see: https://gavv.net/articles/unix-socket-reuse/
// TODO: use a lock file instead
std.posix.unlink(socket_path) catch |err| {
if (err != error.FileNotFound) {
return err;
}
};
// server
const addr = try std.net.Address.initUnix(socket_path);
server = try addr.listen(.{});
defer server.deinit();
std.debug.print("Listening on: {s}...\n", .{socket_path});
try jsruntime.loadEnv(&arena, null, execJS);
}