1 files changed, 168 insertions, 0 deletions
diff --git a/third_party/js/PKI.js/src/OtherKeyAttribute.ts b/third_party/js/PKI.js/src/OtherKeyAttribute.ts
new file mode 100644
index 0000000000..80e243535f
--- /dev/null
+++ b/third_party/js/PKI.js/src/OtherKeyAttribute.ts
@@ -0,0 +1,168 @@
+import * as asn1js from "asn1js";
+import * as pvutils from "pvutils";
+import { EMPTY_STRING } from "./constants";
+import { AsnError } from "./errors";
+import { PkiObject, PkiObjectParameters } from "./PkiObject";
+import * as Schema from "./Schema";
+
+const KEY_ATTR_ID = "keyAttrId";
+const KEY_ATTR = "keyAttr";
+const CLEAR_PROPS = [
+  KEY_ATTR_ID,
+  KEY_ATTR,
+];
+
+export interface IOtherKeyAttribute {
+  keyAttrId: string;
+  keyAttr?: any;
+}
+
+export interface OtherKeyAttributeJson {
+  keyAttrId: string;
+  keyAttr?: any;
+}
+
+export type OtherKeyAttributeParameters = PkiObjectParameters & Partial<IOtherKeyAttribute>;
+
+export type OtherKeyAttributeSchema = Schema.SchemaType;
+
+/**
+ * Represents the OtherKeyAttribute structure described in [RFC5652](https://datatracker.ietf.org/doc/html/rfc5652)
+ */
+export class OtherKeyAttribute extends PkiObject implements IOtherKeyAttribute {
+
+  public static override CLASS_NAME = "OtherKeyAttribute";
+
+  public keyAttrId!: string;
+  public keyAttr?: any;
+
+  /**
+   * Initializes a new instance of the {@link OtherKeyAttribute} class
+   * @param parameters Initialization parameters
+   */
+  constructor(parameters: OtherKeyAttributeParameters = {}) {
+    super();
+
+    this.keyAttrId = pvutils.getParametersValue(parameters, KEY_ATTR_ID, OtherKeyAttribute.defaultValues(KEY_ATTR_ID));
+    if (KEY_ATTR in parameters) {
+      this.keyAttr = pvutils.getParametersValue(parameters, KEY_ATTR, OtherKeyAttribute.defaultValues(KEY_ATTR));
+    }
+
+    if (parameters.schema) {
+      this.fromSchema(parameters.schema);
+    }
+  }
+
+  /**
+   * Returns default values for all class members
+   * @param memberName String name for a class member
+   * @returns Default value
+   */
+  public static override defaultValues(memberName: typeof KEY_ATTR_ID): string;
+  public static override defaultValues(memberName: typeof KEY_ATTR): any;
+  public static override defaultValues(memberName: string): any {
+    switch (memberName) {
+      case KEY_ATTR_ID:
+        return EMPTY_STRING;
+      case KEY_ATTR:
+        return {};
+      default:
+        return super.defaultValues(memberName);
+    }
+  }
+
+  /**
+   * Compare values with default values for all class members
+   * @param memberName String name for a class member
+   * @param memberValue Value to compare with default value
+   */
+  public static compareWithDefault<T>(memberName: string, memberValue: T): memberValue is T {
+    switch (memberName) {
+      case KEY_ATTR_ID:
+        return (typeof memberValue === "string" && memberValue === EMPTY_STRING);
+      case KEY_ATTR:
+        return (Object.keys(memberValue).length === 0);
+      default:
+        return super.defaultValues(memberName);
+    }
+  }
+
+  /**
+   * @inheritdoc
+   * @asn ASN.1 schema
+   * ```asn
+   * OtherKeyAttribute ::= SEQUENCE {
+   *    keyAttrId OBJECT IDENTIFIER,
+   *    keyAttr ANY DEFINED BY keyAttrId OPTIONAL }
+   *```
+   */
+  public static override schema(parameters: OtherKeyAttributeSchema = {}): Schema.SchemaType {
+    const names = pvutils.getParametersValue<NonNullable<typeof parameters.names>>(parameters, "names", {});
+
+    return (new asn1js.Sequence({
+      optional: (names.optional || true),
+      name: (names.blockName || EMPTY_STRING),
+      value: [
+        new asn1js.ObjectIdentifier({ name: (names.keyAttrId || EMPTY_STRING) }),
+        new asn1js.Any({
+          optional: true,
+          name: (names.keyAttr || EMPTY_STRING)
+        })
+      ]
+    }));
+  }
+
+  public fromSchema(schema: Schema.SchemaType): void {
+    // Clear input data first
+    pvutils.clearProps(schema, CLEAR_PROPS);
+
+    // Check the schema is valid
+    const asn1 = asn1js.compareSchema(schema,
+      schema,
+      OtherKeyAttribute.schema({
+        names: {
+          keyAttrId: KEY_ATTR_ID,
+          keyAttr: KEY_ATTR
+        }
+      })
+    );
+    AsnError.assertSchema(asn1, this.className);
+
+    // Get internal properties from parsed schema
+    this.keyAttrId = asn1.result.keyAttrId.valueBlock.toString();
+    if (KEY_ATTR in asn1.result) {
+      this.keyAttr = asn1.result.keyAttr;
+    }
+  }
+
+  public toSchema(): asn1js.Sequence {
+    //#region Create array for output sequence
+    const outputArray = [];
+
+    outputArray.push(new asn1js.ObjectIdentifier({ value: this.keyAttrId }));
+
+    if (KEY_ATTR in this) {
+      outputArray.push(this.keyAttr);
+    }
+    //#endregion
+
+    //#region Construct and return new ASN.1 schema for this object
+    return (new asn1js.Sequence({
+      value: outputArray,
+    }));
+    //#endregion
+  }
+
+  public toJSON(): OtherKeyAttributeJson {
+    const res: OtherKeyAttributeJson = {
+      keyAttrId: this.keyAttrId
+    };
+
+    if (KEY_ATTR in this) {
+      res.keyAttr = this.keyAttr.toJSON();
+    }
+
+    return res;
+  }
+
+}