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#![forbid(unsafe_code)]
use bytecode_verifier::{cyclic_dependencies, dependencies, verify_module};
use move_binary_format::{access::ModuleAccess, file_format::CompiledModule};
use move_command_line_common::files::{
extension_equals, find_filenames, MOVE_COMPILED_EXTENSION, MOVE_EXTENSION,
};
use move_lang::{compiled_unit::AnnotatedCompiledUnit, shared::AddressBytes, Compiler};
use move_symbol_pool::Symbol;
use once_cell::sync::Lazy;
use sha2::{Digest, Sha256};
use std::{
collections::BTreeMap,
fs::File,
io::{Read, Write},
path::{Path, PathBuf},
};
pub mod natives;
pub mod release;
const MODULES_DIR: &str = "modules";
pub const COMPILED_OUTPUT_PATH: &str = "compiled";
pub fn path_in_crate<S>(relative: S) -> PathBuf
where
S: Into<String>,
{
let mut path = PathBuf::from(env!("CARGO_MANIFEST_DIR"));
path.push(relative.into());
path
}
pub fn diem_stdlib_modules_full_path() -> String {
format!("{}/{}", env!("CARGO_MANIFEST_DIR"), MODULES_DIR)
}
pub fn diem_stdlib_files_no_dependencies() -> Vec<String> {
let path = path_in_crate(MODULES_DIR);
find_filenames(&[path], |p| extension_equals(p, MOVE_EXTENSION)).unwrap()
}
pub fn diem_stdlib_files() -> Vec<String> {
let mut files = move_stdlib::move_stdlib_files();
files.extend(diem_stdlib_files_no_dependencies());
files
}
pub fn diem_framework_named_addresses() -> BTreeMap<String, AddressBytes> {
let mapping = [
("Std", "0x1"),
("DiemFramework", "0x1"),
("DiemRoot", "0xA550C18"),
("CurrencyInfo", "0xA550C18"),
("TreasuryCompliance", "0xB1E55ED"),
("VMReserved", "0x0"),
];
mapping
.iter()
.map(|(name, addr)| (name.to_string(), AddressBytes::parse_str(addr).unwrap()))
.collect()
}
pub fn stdlib_bytecode_files() -> Vec<String> {
let path = path_in_crate(COMPILED_OUTPUT_PATH);
let names = diem_stdlib_files();
let res: Vec<String> =
find_filenames(&[path], |p| extension_equals(p, MOVE_COMPILED_EXTENSION))
.unwrap()
.into_iter()
.filter(|s| {
let path = Path::new(s);
for name in &names {
let suffix = "_".to_owned()
+ Path::new(name)
.with_extension(MOVE_COMPILED_EXTENSION)
.file_name()
.unwrap()
.to_str()
.unwrap();
if path
.file_name()
.and_then(|f| f.to_str())
.map_or(false, |s| s.ends_with(&suffix))
{
return true;
}
}
false
})
.collect();
assert!(
!res.is_empty(),
"Unexpected: no stdlib bytecode files found"
);
res
}
pub(crate) fn build_stdlib() -> BTreeMap<Symbol, CompiledModule> {
let (_files, compiled_units) = Compiler::new(&diem_stdlib_files(), &[])
.set_named_address_values(diem_framework_named_addresses())
.build_and_report()
.unwrap();
let mut modules = BTreeMap::new();
for compiled_unit in compiled_units {
match compiled_unit {
AnnotatedCompiledUnit::Module(annot_unit) => {
verify_module(&annot_unit.named_module.module)
.expect("stdlib module failed to verify");
dependencies::verify_module(&annot_unit.named_module.module, modules.values())
.expect("stdlib module dependency failed to verify");
modules.insert(annot_unit.named_module.name, annot_unit.named_module.module);
}
AnnotatedCompiledUnit::Script(_) => panic!("Unexpected Script in stdlib"),
}
}
let modules_by_id: BTreeMap<_, _> = modules
.values()
.map(|module| (module.self_id(), module))
.collect();
for module in modules_by_id.values() {
cyclic_dependencies::verify_module(
module,
|module_id| {
Ok(modules_by_id
.get(module_id)
.expect("missing module in stdlib")
.immediate_dependencies())
},
|module_id| {
Ok(modules_by_id
.get(module_id)
.expect("missing module in stdlib")
.immediate_friends())
},
)
.expect("stdlib module has cyclic dependencies");
}
modules
}
static MODULES: Lazy<Vec<CompiledModule>> = Lazy::new(|| {
build_stdlib()
.into_iter()
.map(|(_key, value)| value)
.collect()
});
static MODULE_BLOBS: Lazy<Vec<Vec<u8>>> = Lazy::new(|| {
MODULES
.iter()
.map(|module| {
let mut bytes = vec![];
module.serialize(&mut bytes).unwrap();
bytes
})
.collect()
});
pub fn modules() -> &'static [CompiledModule] {
&MODULES
}
pub fn module_blobs() -> &'static [Vec<u8>] {
&MODULE_BLOBS
}
fn save_binary(path: &Path, binary: &[u8]) -> bool {
if path.exists() {
let mut bytes = vec![];
File::open(path).unwrap().read_to_end(&mut bytes).unwrap();
if Sha256::digest(binary) == Sha256::digest(&bytes) {
return false;
}
}
File::create(path).unwrap().write_all(binary).unwrap();
true
}