1 files changed, 45 insertions, 0 deletions
diff --git a/comm/third_party/asn1js/src/internals/LocalUniversalStringValueBlockParams.ts b/comm/third_party/asn1js/src/internals/LocalUniversalStringValueBlockParams.ts
new file mode 100644
index 0000000000..6b3b09359a
--- /dev/null
+++ b/comm/third_party/asn1js/src/internals/LocalUniversalStringValueBlockParams.ts
@@ -0,0 +1,45 @@
+import * as pvutils from "pvutils";
+import { LocalSimpleStringBlock, LocalSimpleStringBlockJson, LocalSimpleStringBlockParams } from "./LocalSimpleStringBlock";
+
+export type LocalUniversalStringValueBlockParams = LocalSimpleStringBlockParams;
+export type LocalUniversalStringValueBlockJson = LocalSimpleStringBlockJson;
+
+export class LocalUniversalStringValueBlock extends LocalSimpleStringBlock {
+
+  public static override NAME = "UniversalStringValueBlock";
+
+  public override fromBuffer(inputBuffer: ArrayBuffer | Uint8Array): void {
+    const copyBuffer = ArrayBuffer.isView(inputBuffer) ? inputBuffer.slice().buffer : inputBuffer.slice(0);
+    const valueView = new Uint8Array(copyBuffer);
+
+    for (let i = 0; i < valueView.length; i += 4) {
+      valueView[i] = valueView[i + 3];
+      valueView[i + 1] = valueView[i + 2];
+      valueView[i + 2] = 0x00;
+      valueView[i + 3] = 0x00;
+    }
+
+    this.valueBlock.value = String.fromCharCode.apply(null, new Uint32Array(copyBuffer) as unknown as number[]);
+  }
+
+  public override fromString(inputString: string): void {
+    const strLength = inputString.length;
+
+    const valueHexView = this.valueBlock.valueHexView = new Uint8Array(strLength * 4);
+
+    for (let i = 0; i < strLength; i++) {
+      const codeBuf = pvutils.utilToBase(inputString.charCodeAt(i), 8);
+      const codeView = new Uint8Array(codeBuf);
+      if (codeView.length > 4)
+        continue;
+
+      const dif = 4 - codeView.length;
+
+      for (let j = (codeView.length - 1); j >= 0; j--)
+        valueHexView[i * 4 + j + dif] = codeView[j];
+    }
+
+    this.valueBlock.value = inputString;
+  }
+
+}