2021-01-11 12:13:41 -05:00
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// Copyright 2018-2021 the Deno authors. All rights reserved. MIT license.
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2020-09-05 20:34:02 -04:00
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2021-04-02 09:47:57 -04:00
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use deno_core::error::null_opbuf;
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use deno_core::error::AnyError;
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use deno_core::include_js_files;
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use deno_core::op_sync;
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use deno_core::Extension;
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2020-09-10 09:57:45 -04:00
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use deno_core::OpState;
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2020-04-23 05:51:07 -04:00
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use deno_core::ZeroCopyBuf;
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2020-09-18 14:39:47 -04:00
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use rand::rngs::StdRng;
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use rand::thread_rng;
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use rand::Rng;
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use rand::SeedableRng;
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2021-02-26 12:06:26 -05:00
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use std::path::PathBuf;
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2019-08-14 11:03:02 -04:00
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2020-11-13 16:01:57 -05:00
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pub use rand; // Re-export rand
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2021-04-28 12:41:50 -04:00
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pub fn init(maybe_seed: Option<u64>) -> Extension {
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Extension::builder()
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.js(include_js_files!(
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2021-04-30 15:51:48 -04:00
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prefix "deno:extensions/crypto",
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"01_crypto.js",
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))
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2021-06-05 08:46:24 -04:00
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.ops(vec![
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(
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"op_crypto_get_random_values",
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op_sync(op_crypto_get_random_values),
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),
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("op_crypto_random_uuid", op_sync(op_crypto_random_uuid)),
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])
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.state(move |state| {
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if let Some(seed) = maybe_seed {
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state.put(StdRng::seed_from_u64(seed));
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}
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Ok(())
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})
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.build()
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2019-10-11 14:41:54 -04:00
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}
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2021-01-14 19:24:38 -05:00
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pub fn op_crypto_get_random_values(
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state: &mut OpState,
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_args: (),
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zero_copy: Option<ZeroCopyBuf>,
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) -> Result<(), AnyError> {
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let mut zero_copy = zero_copy.ok_or_else(null_opbuf)?;
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let maybe_seeded_rng = state.try_borrow_mut::<StdRng>();
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if let Some(seeded_rng) = maybe_seeded_rng {
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seeded_rng.fill(&mut *zero_copy);
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} else {
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let mut rng = thread_rng();
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rng.fill(&mut *zero_copy);
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}
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Ok(())
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}
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2021-02-26 12:06:26 -05:00
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2021-06-05 08:46:24 -04:00
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pub fn op_crypto_random_uuid(
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state: &mut OpState,
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_args: (),
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_zero_copy: (),
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) -> Result<String, AnyError> {
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let maybe_seeded_rng = state.try_borrow_mut::<StdRng>();
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let uuid = if let Some(seeded_rng) = maybe_seeded_rng {
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let mut bytes = [0u8; 16];
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seeded_rng.fill(&mut bytes);
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uuid::Builder::from_bytes(bytes)
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.set_version(uuid::Version::Random)
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.build()
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} else {
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uuid::Uuid::new_v4()
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};
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Ok(uuid.to_string())
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}
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2021-02-26 12:06:26 -05:00
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pub fn get_declaration() -> PathBuf {
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PathBuf::from(env!("CARGO_MANIFEST_DIR")).join("lib.deno_crypto.d.ts")
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}
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