1 files changed, 197 insertions, 0 deletions
diff --git a/comm/third_party/asn1js/src/internals/LocalSidValueBlock.ts b/comm/third_party/asn1js/src/internals/LocalSidValueBlock.ts
new file mode 100644
index 0000000000..a9a45ba359
--- /dev/null
+++ b/comm/third_party/asn1js/src/internals/LocalSidValueBlock.ts
@@ -0,0 +1,197 @@
+/* eslint-disable @typescript-eslint/ban-ts-comment */
+import * as pvtsutils from "pvtsutils";
+import * as pvutils from "pvutils";
+import { HexBlockJson, HexBlockParams, HexBlock } from "../HexBlock";
+import { ValueBlock, ValueBlockJson, ValueBlockParams } from "../ValueBlock";
+import { EMPTY_BUFFER } from "./constants";
+import * as utils from "./utils";
+
+export interface ILocalSidValueBlock {
+  valueDec: number;
+  isFirstSid: boolean;
+}
+
+export interface LocalSidValueBlockParams extends HexBlockParams, ValueBlockParams, Partial<ILocalSidValueBlock> { }
+
+export interface LocalSidValueBlockJson extends HexBlockJson, ValueBlockJson, ILocalSidValueBlock { }
+
+export class LocalSidValueBlock extends HexBlock(ValueBlock) implements ILocalSidValueBlock {
+
+  public static override NAME = "sidBlock";
+
+  public valueDec: number;
+  public isFirstSid: boolean;
+
+  constructor({
+    valueDec = -1,
+    isFirstSid = false,
+    ...parameters
+  }: LocalSidValueBlockParams = {}) {
+    super(parameters);
+
+    this.valueDec = valueDec;
+    this.isFirstSid = isFirstSid;
+  }
+
+  public override fromBER(inputBuffer: ArrayBuffer | Uint8Array, inputOffset: number, inputLength: number): number {
+    if (!inputLength) {
+      return inputOffset;
+    }
+    const inputView = pvtsutils.BufferSourceConverter.toUint8Array(inputBuffer);
+
+    // Basic check for parameters
+    if (!utils.checkBufferParams(this, inputView, inputOffset, inputLength)) {
+      return -1;
+    }
+
+    const intBuffer = inputView.subarray(inputOffset, inputOffset + inputLength);
+
+    this.valueHexView = new Uint8Array(inputLength);
+
+    for (let i = 0; i < inputLength; i++) {
+      this.valueHexView[i] = intBuffer[i] & 0x7F;
+
+      this.blockLength++;
+
+      if ((intBuffer[i] & 0x80) === 0x00)
+        break;
+    }
+
+    //#region Adjust size of valueHex buffer
+    const tempView = new Uint8Array(this.blockLength);
+
+    for (let i = 0; i < this.blockLength; i++) {
+      tempView[i] = this.valueHexView[i];
+    }
+
+    this.valueHexView = tempView;
+    //#endregion
+
+    if ((intBuffer[this.blockLength - 1] & 0x80) !== 0x00) {
+      this.error = "End of input reached before message was fully decoded";
+
+      return -1;
+    }
+
+    if (this.valueHexView[0] === 0x00)
+      this.warnings.push("Needlessly long format of SID encoding");
+
+    if (this.blockLength <= 8)
+      this.valueDec = pvutils.utilFromBase(this.valueHexView, 7);
+    else {
+      this.isHexOnly = true;
+      this.warnings.push("Too big SID for decoding, hex only");
+    }
+
+    return (inputOffset + this.blockLength);
+  }
+
+  public set valueBigInt(value: bigint) {
+
+    utils.assertBigInt();
+
+    let bits = BigInt(value).toString(2);
+    while (bits.length % 7) {
+      bits = "0" + bits;
+    }
+    const bytes = new Uint8Array(bits.length / 7);
+    for (let i = 0; i < bytes.length; i++) {
+      bytes[i] = parseInt(bits.slice(i * 7, i * 7 + 7), 2) + (i + 1 < bytes.length ? 0x80 : 0);
+    }
+    this.fromBER(bytes.buffer, 0, bytes.length);
+  }
+
+  public override toBER(sizeOnly?: boolean): ArrayBuffer {
+    if (this.isHexOnly) {
+      if (sizeOnly)
+        return (new ArrayBuffer(this.valueHexView.byteLength));
+
+      const curView = this.valueHexView;
+      const retView = new Uint8Array(this.blockLength);
+
+      for (let i = 0; i < (this.blockLength - 1); i++)
+        retView[i] = curView[i] | 0x80;
+
+      retView[this.blockLength - 1] = curView[this.blockLength - 1];
+
+      return retView.buffer;
+    }
+
+    const encodedBuf = pvutils.utilToBase(this.valueDec, 7);
+    if (encodedBuf.byteLength === 0) {
+      this.error = "Error during encoding SID value";
+
+      return EMPTY_BUFFER;
+    }
+
+    const retView = new Uint8Array(encodedBuf.byteLength);
+
+    if (!sizeOnly) {
+      const encodedView = new Uint8Array(encodedBuf);
+      const len = encodedBuf.byteLength - 1;
+
+      for (let i = 0; i < len; i++)
+        retView[i] = encodedView[i] | 0x80;
+
+      retView[len] = encodedView[len];
+    }
+
+    return retView;
+  }
+
+  public override toString(): string {
+    let result = "";
+
+    if (this.isHexOnly)
+      result = pvtsutils.Convert.ToHex(this.valueHexView);
+    else {
+      if (this.isFirstSid) {
+        let sidValue = this.valueDec;
+
+        if (this.valueDec <= 39)
+          result = "0.";
+        else {
+          if (this.valueDec <= 79) {
+            result = "1.";
+            sidValue -= 40;
+          }
+          else {
+            result = "2.";
+            sidValue -= 80;
+          }
+        }
+
+        result += sidValue.toString();
+      }
+
+      else
+        result = this.valueDec.toString();
+    }
+
+    return result;
+  }
+
+  public override toJSON(): LocalSidValueBlockJson {
+    return {
+      ...super.toJSON(),
+      valueDec: this.valueDec,
+      isFirstSid: this.isFirstSid,
+    };
+  }
+
+}
+
+export interface LocalSidValueBlock {
+  /**
+   * @deprecated since version 3.0.0
+   */
+  // @ts-ignore
+  valueBeforeDecode: ArrayBuffer;
+  /**
+   * Binary data in ArrayBuffer representation
+   *
+   * @deprecated since version 3.0.0
+   */
+  // @ts-ignore
+  valueHex: ArrayBuffer;
+}