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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/. */
use lazy_static::lazy_static;
use std::path::PathBuf;
use std::sync::{Once, RwLock};
lazy_static! {
static ref RES: RwLock<Option<Box<dyn ResourceReaderMethods + Sync + Send>>> =
RwLock::new(None);
}
pub fn set(reader: Box<dyn ResourceReaderMethods + Sync + Send>) {
*RES.write().unwrap() = Some(reader);
}
pub fn set_for_tests() {
static ONCE: Once = Once::new();
ONCE.call_once(|| set(resources_for_tests()));
}
pub fn read_bytes(res: Resource) -> Vec<u8> {
RES.read()
.unwrap()
.as_ref()
.expect("Resource reader not set.")
.read(res)
}
pub fn read_string(res: Resource) -> String {
String::from_utf8(read_bytes(res)).unwrap()
}
pub fn sandbox_access_files() -> Vec<PathBuf> {
RES.read()
.unwrap()
.as_ref()
.expect("Resource reader not set.")
.sandbox_access_files()
}
pub fn sandbox_access_files_dirs() -> Vec<PathBuf> {
RES.read()
.unwrap()
.as_ref()
.expect("Resource reader not set.")
.sandbox_access_files_dirs()
}
pub enum Resource {
Preferences,
BluetoothBlocklist,
DomainList,
HstsPreloadList,
BadCertHTML,
NetErrorHTML,
UserAgentCSS,
ServoCSS,
PresentationalHintsCSS,
QuirksModeCSS,
RippyPNG,
MediaControlsCSS,
MediaControlsJS,
CrashHTML,
}
pub trait ResourceReaderMethods {
fn read(&self, res: Resource) -> Vec<u8>;
fn sandbox_access_files(&self) -> Vec<PathBuf>;
fn sandbox_access_files_dirs(&self) -> Vec<PathBuf>;
}
fn resources_for_tests() -> Box<dyn ResourceReaderMethods + Sync + Send> {
use std::env;
use std::fs::File;
use std::io::Read;
struct ResourceReader;
impl ResourceReaderMethods for ResourceReader {
fn sandbox_access_files(&self) -> Vec<PathBuf> {
vec![]
}
fn sandbox_access_files_dirs(&self) -> Vec<PathBuf> {
vec![]
}
fn read(&self, file: Resource) -> Vec<u8> {
let file = 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",
Resource::CrashHTML => "crash.html",
};
let mut path = env::current_exe().unwrap();
path = path.canonicalize().unwrap();
while path.pop() {
path.push("resources");
if path.is_dir() {
break;
}
path.pop();
}
path.push(file);
let mut buffer = vec![];
File::open(path)
.expect(&format!("Can't find file: {}", file))
.read_to_end(&mut buffer)
.expect("Can't read file");
buffer
}
}
Box::new(ResourceReader)
}
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