build = "build/main.rs"
rust-version = "1.70"
+[lib]
+crate-type = ["cdylib", "rlib"]
+
[features]
-default = ["ffi", "repl", "hostname", "tls", "http"]
+default = ["ffi", "repl", "hostname", "tls", "http", "crypto-full"]
ffi = ["dep:libffi"]
repl = ["dep:crossterm", "dep:ctrlc", "dep:rustyline"]
hostname = ["dep:hostname"]
tls = ["dep:native-tls"]
http = ["dep:hyper", "dep:reqwest"]
rust_beta_channel = []
+crypto-full = []
[build-dependencies]
indexmap = "1.0.2"
[target.'cfg(target_arch = "wasm32")'.dependencies]
getrandom = { version = "0.2.10", features = ["js"] }
-tokio = { version = "1.28.2", features = ["sync", "macros", "io-util", "rt", "time"] }
+tokio = { version = "1.28.2", features = ["sync", "macros", "io-util", "rt"] }
+
+[target.'cfg(all(target_arch = "wasm32", target_os = "unknown"))'.dependencies]
+console_error_panic_hook = "0.1"
+console_log = "1.0"
+wasm-bindgen = "0.2.87"
+wasm-bindgen-futures = "0.4"
+serde-wasm-bindgen = "0.5"
+web-sys = { version = "0.3", features = [
+ "Document",
+ "Window",
+ "Element",
+]}
[target.'cfg(target_os = "wasi")'.dependencies]
ring-wasi = { version = "0.16.25" }
Scryer Prolog must be built with **Rust 1.63 and up**.
+### Building WebAssembly
+
+Scryer Prolog has basic WebAssembly support. You can follow `wasm-pack`'s [official instructions](https://rustwasm.github.io/docs/wasm-pack/quickstart.html) to install `wasm-pack` and build it in any way you like.
+
+However, none of the [default features](https://doc.rust-lang.org/cargo/reference/features.html#the-default-feature) are currently supported. The preferred way of disabling them is passing [extra options](https://rustwasm.github.io/wasm-pack/book/commands/build.html#extra-options) to `wasm-pack`.
+
+For example, if you want a minimal working package without using any bundler like `webpack`, you can do this:
+```
+wasm-pack build --target web -- --no-default-features
+```
+Then a `pkg` directory will be created, containing everything you need for a webapp. You can test whether the package is successfully built by creating an html file, adapted from `wasm-bindgen`'s [official example](https://rustwasm.github.io/wasm-bindgen/examples/without-a-bundler.html) like this:
+
+```html
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta charset="UTF-8" />
+ <title>Scryer Prolog - Sudoku Solver Example</title>
+ <script type="module">
+ import init, { eval_code } from './pkg/scryer_prolog.js';
+
+ const run = async () => {
+ await init("./pkg/scryer_prolog_bg.wasm");
+ let code = `
+ :- use_module(library(format)).
+ :- use_module(library(clpz)).
+ :- use_module(library(lists)).
+
+ sudoku(Rows) :-
+ length(Rows, 9), maplist(same_length(Rows), Rows),
+ append(Rows, Vs), Vs ins 1..9,
+ maplist(all_distinct, Rows),
+ transpose(Rows, Columns),
+ maplist(all_distinct, Columns),
+ Rows = [As,Bs,Cs,Ds,Es,Fs,Gs,Hs,Is],
+ blocks(As, Bs, Cs),
+ blocks(Ds, Es, Fs),
+ blocks(Gs, Hs, Is).
+
+ blocks([], [], []).
+ blocks([N1,N2,N3|Ns1], [N4,N5,N6|Ns2], [N7,N8,N9|Ns3]) :-
+ all_distinct([N1,N2,N3,N4,N5,N6,N7,N8,N9]),
+ blocks(Ns1, Ns2, Ns3).
+
+ problem(1, [[_,_,_,_,_,_,_,_,_],
+ [_,_,_,_,_,3,_,8,5],
+ [_,_,1,_,2,_,_,_,_],
+ [_,_,_,5,_,7,_,_,_],
+ [_,_,4,_,_,_,1,_,_],
+ [_,9,_,_,_,_,_,_,_],
+ [5,_,_,_,_,_,_,7,3],
+ [_,_,2,_,1,_,_,_,_],
+ [_,_,_,_,4,_,_,_,9]]).
+
+ main :-
+ problem(1, Rows), sudoku(Rows), maplist(portray_clause, Rows).
+
+ :- initialization(main).
+ `;
+ const result = eval_code(code);
+ document.write(`<p>Sudoku solver returns:</p><pre>${result}</pre>`);
+ }
+ run();
+ </script>
+ </head>
+ <body></body>
+</html>
+```
+
+Then you can serve it with your favorite http server like `python -m http.server` or `npx serve`, and access the page with your browser.
+
### Docker Install
First, install [Docker](https://docs.docker.com/get-docker/) on Linux,
CryptoDataHKDF,
#[strum_discriminants(strum(props(Arity = "4", Name = "$crypto_password_hash")))]
CryptoPasswordHash,
+ #[strum_discriminants(strum(props(Arity = "4", Name = "$crypto_curve_scalar_mult")))]
+ CryptoCurveScalarMult,
+ #[strum_discriminants(strum(props(Arity = "3", Name = "$curve25519_scalar_mult")))]
+ Curve25519ScalarMult,
+ #[cfg(feature = "crypto-full")]
#[strum_discriminants(strum(props(Arity = "7", Name = "$crypto_data_encrypt")))]
CryptoDataEncrypt,
+ #[cfg(feature = "crypto-full")]
#[strum_discriminants(strum(props(Arity = "6", Name = "$crypto_data_decrypt")))]
CryptoDataDecrypt,
- #[strum_discriminants(strum(props(Arity = "4", Name = "$crypto_curve_scalar_mult")))]
- CryptoCurveScalarMult,
+ #[cfg(feature = "crypto-full")]
#[strum_discriminants(strum(props(Arity = "4", Name = "$ed25519_sign")))]
Ed25519Sign,
+ #[cfg(feature = "crypto-full")]
#[strum_discriminants(strum(props(Arity = "4", Name = "$ed25519_verify")))]
Ed25519Verify,
+ #[cfg(feature = "crypto-full")]
#[strum_discriminants(strum(props(Arity = "1", Name = "$ed25519_new_keypair")))]
Ed25519NewKeyPair,
+ #[cfg(feature = "crypto-full")]
#[strum_discriminants(strum(props(Arity = "2", Name = "$ed25519_keypair_public_key")))]
Ed25519KeyPairPublicKey,
- #[strum_discriminants(strum(props(Arity = "3", Name = "$curve25519_scalar_mult")))]
- Curve25519ScalarMult,
#[strum_discriminants(strum(props(Arity = "2", Name = "$first_non_octet")))]
FirstNonOctet,
#[strum_discriminants(strum(props(Arity = "3", Name = "$load_html")))]
&Instruction::CallCryptoDataHash |
&Instruction::CallCryptoDataHKDF |
&Instruction::CallCryptoPasswordHash |
- &Instruction::CallCryptoDataEncrypt |
- &Instruction::CallCryptoDataDecrypt |
&Instruction::CallCryptoCurveScalarMult |
- &Instruction::CallEd25519Sign |
- &Instruction::CallEd25519Verify |
- &Instruction::CallEd25519NewKeyPair |
- &Instruction::CallEd25519KeyPairPublicKey |
&Instruction::CallCurve25519ScalarMult |
&Instruction::CallFirstNonOctet |
&Instruction::CallLoadHTML |
functor!(atom!("call"), [atom(name), fixnum(arity)])
}
//
+ #[cfg(feature = "crypto-full")]
+ &Instruction::CallCryptoDataEncrypt |
+ &Instruction::CallCryptoDataDecrypt |
+ &Instruction::CallEd25519Sign |
+ &Instruction::CallEd25519Verify |
+ &Instruction::CallEd25519NewKeyPair |
+ &Instruction::CallEd25519KeyPairPublicKey => {
+ let (name, arity) = self.to_name_and_arity();
+ functor!(atom!("call"), [atom(name), fixnum(arity)])
+ }
+ //
&Instruction::ExecuteAtomChars |
&Instruction::ExecuteAtomCodes |
&Instruction::ExecuteAtomLength |
&Instruction::ExecuteCryptoDataHash |
&Instruction::ExecuteCryptoDataHKDF |
&Instruction::ExecuteCryptoPasswordHash |
- &Instruction::ExecuteCryptoDataEncrypt |
- &Instruction::ExecuteCryptoDataDecrypt |
&Instruction::ExecuteCryptoCurveScalarMult |
- &Instruction::ExecuteEd25519Sign |
- &Instruction::ExecuteEd25519Verify |
- &Instruction::ExecuteEd25519NewKeyPair |
- &Instruction::ExecuteEd25519KeyPairPublicKey |
&Instruction::ExecuteCurve25519ScalarMult |
&Instruction::ExecuteFirstNonOctet |
&Instruction::ExecuteLoadHTML |
functor!(atom!("execute"), [atom(name), fixnum(arity)])
}
//
+ #[cfg(feature = "crypto-full")]
+ &Instruction::ExecuteCryptoDataEncrypt |
+ &Instruction::ExecuteCryptoDataDecrypt |
+ &Instruction::ExecuteEd25519Sign |
+ &Instruction::ExecuteEd25519Verify |
+ &Instruction::ExecuteEd25519NewKeyPair |
+ &Instruction::ExecuteEd25519KeyPairPublicKey => {
+ let (name, arity) = self.to_name_and_arity();
+ functor!(atom!("execute"), [atom(name), fixnum(arity)])
+ }
+ //
&Instruction::Deallocate => {
functor!(atom!("deallocate"))
}
}
}
+#[cfg(feature = "repl")]
impl rustyline::completion::Candidate for AtomString<'_> {
fn display(&self) -> &str {
self.deref()
use instructions::instr;
mod rcu;
+
+#[cfg(target_arch = "wasm32")]
+use wasm_bindgen::prelude::*;
+
+#[cfg(target_arch = "wasm32")]
+#[wasm_bindgen]
+pub fn eval_code(s: &str) -> String {
+ use web_sys::console;
+ use machine::mock_wam::*;
+
+ let mut wam = Machine::with_test_streams();
+ let bytes = wam.test_load_string(s);
+ String::from_utf8_lossy(&bytes).to_string()
+}
self.crypto_password_hash();
step_or_fail!(self, self.machine_st.p = self.machine_st.cp);
}
+ #[cfg(feature = "crypto-full")]
&Instruction::CallCryptoDataEncrypt => {
self.crypto_data_encrypt();
step_or_fail!(self, self.machine_st.p += 1);
}
+ #[cfg(feature = "crypto-full")]
&Instruction::ExecuteCryptoDataEncrypt => {
self.crypto_data_encrypt();
step_or_fail!(self, self.machine_st.p = self.machine_st.cp);
}
+ #[cfg(feature = "crypto-full")]
&Instruction::CallCryptoDataDecrypt => {
self.crypto_data_decrypt();
step_or_fail!(self, self.machine_st.p += 1);
}
+ #[cfg(feature = "crypto-full")]
&Instruction::ExecuteCryptoDataDecrypt => {
self.crypto_data_decrypt();
step_or_fail!(self, self.machine_st.p = self.machine_st.cp);
self.crypto_curve_scalar_mult();
step_or_fail!(self, self.machine_st.p = self.machine_st.cp);
}
+ #[cfg(feature = "crypto-full")]
&Instruction::CallEd25519Sign => {
self.ed25519_sign();
step_or_fail!(self, self.machine_st.p += 1);
}
+ #[cfg(feature = "crypto-full")]
&Instruction::ExecuteEd25519Sign => {
self.ed25519_sign();
step_or_fail!(self, self.machine_st.p = self.machine_st.cp);
}
+ #[cfg(feature = "crypto-full")]
&Instruction::CallEd25519Verify => {
self.ed25519_verify();
step_or_fail!(self, self.machine_st.p += 1);
}
+ #[cfg(feature = "crypto-full")]
&Instruction::ExecuteEd25519Verify => {
self.ed25519_verify();
step_or_fail!(self, self.machine_st.p = self.machine_st.cp);
}
+ #[cfg(feature = "crypto-full")]
&Instruction::CallEd25519NewKeyPair => {
self.ed25519_new_key_pair();
step_or_fail!(self, self.machine_st.p += 1);
}
+ #[cfg(feature = "crypto-full")]
&Instruction::ExecuteEd25519NewKeyPair => {
self.ed25519_new_key_pair();
step_or_fail!(self, self.machine_st.p = self.machine_st.cp);
}
+ #[cfg(feature = "crypto-full")]
&Instruction::CallEd25519KeyPairPublicKey => {
self.ed25519_key_pair_public_key();
step_or_fail!(self, self.machine_st.p += 1);
}
+ #[cfg(feature = "crypto-full")]
&Instruction::ExecuteEd25519KeyPairPublicKey => {
self.ed25519_key_pair_public_key();
step_or_fail!(self, self.machine_st.p = self.machine_st.cp);
self.load_file(file.into(), stream);
self.user_output.bytes().map(|b| b.unwrap()).collect()
}
+
+ pub fn test_load_string(&mut self, code: &str) -> Vec<u8> {
+ use std::io::Read;
+
+ let stream = Stream::from_owned_string(
+ code.to_owned(),
+ &mut self.machine_st.arena,
+ );
+
+ self.load_file("<stdin>".into(), stream);
+ self.user_output.bytes().map(|b| b.unwrap()).collect()
+ }
+
}
#[cfg(test)]
let user_output = Stream::stdout(&mut machine_st.arena);
let user_error = Stream::stderr(&mut machine_st.arena);
- #[cfg(not(target_os = "wasi"))]
+ #[cfg(not(target_arch = "wasm32"))]
let runtime = tokio::runtime::Runtime::new().unwrap();
- #[cfg(target_os = "wasi")]
+ #[cfg(target_arch = "wasm32")]
let runtime = tokio::runtime::Builder::new_current_thread()
.enable_all()
.build()
use std::str::FromStr;
use chrono::{offset::Local, DateTime};
-#[cfg(not(target_os = "wasi"))]
+#[cfg(not(target_arch = "wasm32"))]
use cpu_time::ProcessTime;
use std::time::{Duration, SystemTime};
use blake2::{Blake2b, Blake2s};
use ring::rand::{SecureRandom, SystemRandom};
+use ring::{digest, hkdf, pbkdf2};
+
+#[cfg(feature = "crypto-full")]
use ring::{
- aead, digest, hkdf, pbkdf2,
+ aead,
signature::{self, KeyPair},
};
use ripemd160::{Digest, Ripemd160};
self.machine_st.fail = result;
}
- #[cfg(not(target_os = "wasi"))]
+ #[cfg(not(target_arch = "wasm32"))]
#[inline(always)]
pub(crate) fn cpu_now(&mut self) {
let secs = ProcessTime::now().as_duration().as_secs_f64();
.unify_f64(secs, self.machine_st.registers[1]);
}
- #[cfg(target_os = "wasi")]
+ #[cfg(target_arch = "wasm32")]
#[inline(always)]
pub(crate) fn cpu_now(&mut self) {
// TODO
unify!(self.machine_st, self.machine_st.registers[4], ints_list);
}
+ #[cfg(feature = "crypto-full")]
#[inline(always)]
pub(crate) fn crypto_data_encrypt(&mut self) {
let encoding = cell_as_atom!(self.deref_register(3));
);
}
+ #[cfg(feature = "crypto-full")]
#[inline(always)]
pub(crate) fn crypto_data_decrypt(&mut self) {
let data = self.string_encoding_bytes(self.machine_st.registers[1], atom!("octet"));
unify!(self.machine_st, self.machine_st.registers[4], uncompressed);
}
+ #[cfg(feature = "crypto-full")]
#[inline(always)]
pub(crate) fn ed25519_new_key_pair(&mut self) {
let pkcs8_bytes = signature::Ed25519KeyPair::generate_pkcs8(rng()).unwrap();
)
}
+ #[cfg(feature = "crypto-full")]
#[inline(always)]
pub(crate) fn ed25519_key_pair_public_key(&mut self) {
let bytes = self.string_encoding_bytes(self.machine_st.registers[1], atom!("octet"));
);
}
+ #[cfg(feature = "crypto-full")]
#[inline(always)]
pub(crate) fn ed25519_sign(&mut self) {
let key = self.string_encoding_bytes(self.machine_st.registers[1], atom!("octet"));
unify!(self.machine_st, self.machine_st.registers[4], sig_list);
}
+ #[cfg(feature = "crypto-full")]
#[inline(always)]
pub(crate) fn ed25519_verify(&mut self) {
let key = self.string_encoding_bytes(self.machine_st.registers[1], atom!("octet"));