use std::path::PathBuf;
use std::sync::{LazyLock, RwLock};
use cfg_if::cfg_if;
static RES: LazyLock<RwLock<Option<Box<dyn ResourceReaderMethods + Sync + Send>>>> =
LazyLock::new(|| {
cfg_if! {
if #[cfg(servo_production)] {
RwLock::new(None)
} else {
const _: () = assert!(cfg!(servo_do_not_use_in_production));
RwLock::new(Some(resources_for_tests()))
}
}
});
pub fn set(reader: Box<dyn ResourceReaderMethods + Sync + Send>) {
*RES.write().unwrap() = Some(reader);
}
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,
DirectoryListingHTML,
}
impl Resource {
pub fn filename(&self) -> &'static str {
match self {
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",
Resource::DirectoryListingHTML => "directory-listing.html",
}
}
}
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> {
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> {
match file {
Resource::Preferences => &include_bytes!("../../../resources/prefs.json")[..],
Resource::BluetoothBlocklist => {
&include_bytes!("../../../resources/gatt_blocklist.txt")[..]
},
Resource::DomainList => {
&include_bytes!("../../../resources/public_domains.txt")[..]
},
Resource::HstsPreloadList => {
&include_bytes!("../../../resources/hsts_preload.json")[..]
},
Resource::BadCertHTML => &include_bytes!("../../../resources/badcert.html")[..],
Resource::NetErrorHTML => &include_bytes!("../../../resources/neterror.html")[..],
Resource::UserAgentCSS => &include_bytes!("../../../resources/user-agent.css")[..],
Resource::ServoCSS => &include_bytes!("../../../resources/servo.css")[..],
Resource::PresentationalHintsCSS => {
&include_bytes!("../../../resources/presentational-hints.css")[..]
},
Resource::QuirksModeCSS => {
&include_bytes!("../../../resources/quirks-mode.css")[..]
},
Resource::RippyPNG => &include_bytes!("../../../resources/rippy.png")[..],
Resource::MediaControlsCSS => {
&include_bytes!("../../../resources/media-controls.css")[..]
},
Resource::MediaControlsJS => {
&include_bytes!("../../../resources/media-controls.js")[..]
},
Resource::CrashHTML => &include_bytes!("../../../resources/crash.html")[..],
Resource::DirectoryListingHTML => {
&include_bytes!("../../../resources/directory-listing.html")[..]
},
}
.to_owned()
}
}
Box::new(ResourceReader)
}