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/* 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 https://mozilla.org/MPL/2.0/. */
// This is a copy of the resource loader from the winit port
// TODO: move this to somewhere where it can be shared.
// https://github.com/servo/servo/issues/24853
use lazy_static::lazy_static;
use servo::embedder_traits::resources::{self, Resource};
use std::env;
use std::fs;
use std::io;
use std::path::PathBuf;
use std::sync::Mutex;
lazy_static! {
static ref CMD_RESOURCE_DIR: Mutex<Option<String>> = Mutex::new(None);
}
struct ResourceReader;
fn filename(file: Resource) -> &'static str {
match file {
Resource::Preferences => "prefs.json",
Resource::BluetoothBlocklist => "gatt_blocklist.txt",
Resource::DomainList => "public_domains.txt",
Resource::HstsPreloadList => "hsts_preload.json",
Resource::BadCertHTML => "badcert.html",
Resource::NetErrorHTML => "neterror.html",
Resource::UserAgentCSS => "user-agent.css",
Resource::ServoCSS => "servo.css",
Resource::PresentationalHintsCSS => "presentational-hints.css",
Resource::QuirksModeCSS => "quirks-mode.css",
Resource::RippyPNG => "rippy.png",
Resource::MediaControlsCSS => "media-controls.css",
Resource::MediaControlsJS => "media-controls.js",
}
}
pub fn init() {
resources::set(Box::new(ResourceReader));
}
fn resources_dir_path() -> io::Result<PathBuf> {
// This needs to be called before the process is sandboxed
// as we only give permission to read inside the resources directory,
// not the permissions the "search" for the resources directory.
let mut dir = CMD_RESOURCE_DIR.lock().unwrap();
if let Some(ref path) = *dir {
return Ok(PathBuf::from(path));
}
// FIXME: Find a way to not rely on the executable being
// under `<servo source>[/$target_triple]/target/debug`
// or `<servo source>[/$target_triple]/target/release`.
let mut path = PathBuf::from(env!("CARGO_MANIFEST_DIR"));
// Follow symlink
path = path.canonicalize()?;
while path.pop() {
path.push("resources");
if path.is_dir() {
break;
}
path.pop();
// Check for Resources on mac when using a case sensitive filesystem.
path.push("Resources");
if path.is_dir() {
break;
}
path.pop();
}
*dir = Some(path.to_str().unwrap().to_owned());
Ok(path)
}
impl resources::ResourceReaderMethods for ResourceReader {
fn read(&self, file: Resource) -> Vec<u8> {
let file = filename(file);
let mut path = resources_dir_path().expect("Can't find resources directory");
path.push(file);
fs::read(path.clone()).expect(&format!("Can't read file {:?}", path))
}
fn sandbox_access_files_dirs(&self) -> Vec<PathBuf> {
vec![resources_dir_path().expect("Can't find resources directory")]
}
fn sandbox_access_files(&self) -> Vec<PathBuf> {
vec![]
}
}
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