feat(extensions/crypto): implement randomUUID (#10848)

6 files changed, 38 insertions, 6 deletions

diff --git a/Cargo.lock b/Cargo.lock
index c1e756854..a28d90d6a 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -645,6 +645,7 @@ version = "0.21.1"
 dependencies = [
  "deno_core",
  "rand 0.8.3",
+ "uuid",
 ]
 
 [[package]]
diff --git a/extensions/crypto/01_crypto.js b/extensions/crypto/01_crypto.js
index dba6b0091..627035c28 100644
--- a/extensions/crypto/01_crypto.js
+++ b/extensions/crypto/01_crypto.js
@@ -41,10 +41,16 @@
     return arrayBufferView;
   }
 
+  function randomUUID() {
+    return core.opSync("op_crypto_random_uuid");
+  }
+
   window.crypto = {
     getRandomValues,
+    randomUUID,
   };
   window.__bootstrap.crypto = {
     getRandomValues,
+    randomUUID,
   };
 })(this);
diff --git a/extensions/crypto/Cargo.toml b/extensions/crypto/Cargo.toml
index fa0a6634e..8b919b611 100644
--- a/extensions/crypto/Cargo.toml
+++ b/extensions/crypto/Cargo.toml
@@ -16,3 +16,4 @@ path = "lib.rs"
 [dependencies]
 deno_core = { version = "0.88.1", path = "../../core" }
 rand = "0.8.3"
+uuid = { version = "0.8.2", features = ["v4"] }
diff --git a/extensions/crypto/lib.deno_crypto.d.ts b/extensions/crypto/lib.deno_crypto.d.ts
index a00757e71..854696676 100644
--- a/extensions/crypto/lib.deno_crypto.d.ts
+++ b/extensions/crypto/lib.deno_crypto.d.ts
@@ -23,4 +23,5 @@ declare interface Crypto {
   >(
     array: T,
   ): T;
+  randomUUID(): string;
 }
diff --git a/extensions/crypto/lib.rs b/extensions/crypto/lib.rs
index 45473f4d5..bf4174f75 100644
--- a/extensions/crypto/lib.rs
+++ b/extensions/crypto/lib.rs
@@ -21,10 +21,13 @@ pub fn init(maybe_seed: Option<u64>) -> Extension {
       prefix "deno:extensions/crypto",
       "01_crypto.js",
     ))
-    .ops(vec![(
-      "op_crypto_get_random_values",
-      op_sync(op_crypto_get_random_values),
-    )])
+    .ops(vec![
+      (
+        "op_crypto_get_random_values",
+        op_sync(op_crypto_get_random_values),
+      ),
+      ("op_crypto_random_uuid", op_sync(op_crypto_random_uuid)),
+    ])
     .state(move |state| {
       if let Some(seed) = maybe_seed {
         state.put(StdRng::seed_from_u64(seed));
@@ -51,6 +54,25 @@ pub fn op_crypto_get_random_values(
   Ok(())
 }
 
+pub fn op_crypto_random_uuid(
+  state: &mut OpState,
+  _args: (),
+  _zero_copy: (),
+) -> Result<String, AnyError> {
+  let maybe_seeded_rng = state.try_borrow_mut::<StdRng>();
+  let uuid = if let Some(seeded_rng) = maybe_seeded_rng {
+    let mut bytes = [0u8; 16];
+    seeded_rng.fill(&mut bytes);
+    uuid::Builder::from_bytes(bytes)
+      .set_version(uuid::Version::Random)
+      .build()
+  } else {
+    uuid::Uuid::new_v4()
+  };
+
+  Ok(uuid.to_string())
+}
+
 pub fn get_declaration() -> PathBuf {
   PathBuf::from(env!("CARGO_MANIFEST_DIR")).join("lib.deno_crypto.d.ts")
 }
diff --git a/tools/wpt/expectation.json b/tools/wpt/expectation.json
index 83e4d7c94..93214d001 100644
--- a/tools/wpt/expectation.json
+++ b/tools/wpt/expectation.json
@@ -146,7 +146,7 @@
       "rsa_importKey.https.any.html": false,
       "symmetric_importKey.https.any.html": false
     },
-    "randomUUID.https.any.html": false,
+    "randomUUID.https.any.html": true,
     "sign_verify": {
       "ecdsa.https.any.html": false,
       "hmac.https.any.html": false,
@@ -155,7 +155,8 @@
     },
     "wrapKey_unwrapKey": {
       "wrapKey_unwrapKey.https.any.html": false
-    }
+    },
+    "randomUUID.any.html": true
   },
   "console": {
     "console-is-a-namespace.any.html": true,