crypto: refactoring internals, add WebCrypto

Fixes: https://github.com/nodejs/node/issues/678
Refs: https://github.com/nodejs/node/issues/26854

Signed-off-by: James M Snell <jasnell@gmail.com>

PR-URL: https://github.com/nodejs/node/pull/35093
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>

1 files changed, 20 insertions, 0 deletions

diff --git a/src/string_bytes.cc b/src/string_bytes.cc
index b03268c49af..556dba97c09 100644
--- a/src/string_bytes.cc
+++ b/src/string_bytes.cc
@@ -358,6 +358,8 @@ size_t StringBytes::Write(Isolate* isolate,
       break;
     }
 
+    case BASE64URL:
+      // Fall through
     case BASE64:
       if (str->IsExternalOneByte()) {
         auto ext = str->GetExternalOneByteStringResource();
@@ -425,6 +427,8 @@ Maybe<size_t> StringBytes::StorageSize(Isolate* isolate,
       data_size = str->Length() * sizeof(uint16_t);
       break;
 
+    case BASE64URL:
+      // Fall through
     case BASE64:
       data_size = base64_decoded_size_fast(str->Length());
       break;
@@ -466,6 +470,8 @@ Maybe<size_t> StringBytes::Size(Isolate* isolate,
     case UCS2:
       return Just(str->Length() * sizeof(uint16_t));
 
+    case BASE64URL:
+      // Fall through
     case BASE64: {
       String::Value value(isolate, str);
       return Just(base64_decoded_size(*value, value.length()));
@@ -691,6 +697,20 @@ MaybeLocal<Value> StringBytes::Encode(Isolate* isolate,
       return ExternOneByteString::New(isolate, dst, dlen, error);
     }
 
+    case BASE64URL: {
+      size_t dlen = base64_encoded_size(buflen, Base64Mode::URL);
+      char* dst = node::UncheckedMalloc(dlen);
+      if (dst == nullptr) {
+        *error = node::ERR_MEMORY_ALLOCATION_FAILED(isolate);
+        return MaybeLocal<Value>();
+      }
+
+      size_t written = base64_encode(buf, buflen, dst, dlen, Base64Mode::URL);
+      CHECK_EQ(written, dlen);
+
+      return ExternOneByteString::New(isolate, dst, dlen, error);
+    }
+
     case HEX: {
       size_t dlen = buflen * 2;
       char* dst = node::UncheckedMalloc(dlen);