1 files changed, 225 insertions, 0 deletions
diff --git a/third_party/js/PKI.js/src/AttributeTypeAndValue.ts b/third_party/js/PKI.js/src/AttributeTypeAndValue.ts
new file mode 100644
index 0000000000..786b39f9ca
--- /dev/null
+++ b/third_party/js/PKI.js/src/AttributeTypeAndValue.ts
@@ -0,0 +1,225 @@
+import * as asn1js from "asn1js";
+import * as pvtsutils from "pvtsutils";
+import * as pvutils from "pvutils";
+import { EMPTY_STRING } from "./constants";
+import { AsnError } from "./errors";
+import { stringPrep } from "./Helpers";
+import { PkiObject, PkiObjectParameters } from "./PkiObject";
+import * as Schema from "./Schema";
+
+const TYPE = "type";
+const VALUE = "value";
+
+export interface IAttributeTypeAndValue {
+  type: string;
+  value: AttributeValueType;
+}
+
+export type AttributeTypeAndValueParameters = PkiObjectParameters & Partial<IAttributeTypeAndValue>;
+
+export type AttributeValueType = asn1js.Utf8String
+  | asn1js.BmpString
+  | asn1js.UniversalString
+  | asn1js.NumericString
+  | asn1js.PrintableString
+  | asn1js.TeletexString
+  | asn1js.VideotexString
+  | asn1js.IA5String
+  | asn1js.GraphicString
+  | asn1js.VisibleString
+  | asn1js.GeneralString
+  | asn1js.CharacterString;
+
+export interface AttributeTypeAndValueJson {
+  type: string;
+  value: any;
+}
+
+/**
+ * Represents the AttributeTypeAndValue structure described in [RFC5280](https://datatracker.ietf.org/doc/html/rfc5280)
+ */
+export class AttributeTypeAndValue extends PkiObject implements IAttributeTypeAndValue {
+
+  public static override CLASS_NAME = "AttributeTypeAndValue";
+
+  public type!: string;
+  public value!: AttributeValueType;
+
+  /**
+   * Initializes a new instance of the {@link AttributeTypeAndValue} class
+   * @param parameters Initialization parameters
+   */
+  constructor(parameters: AttributeTypeAndValueParameters = {}) {
+    super();
+
+    this.type = pvutils.getParametersValue(parameters, TYPE, AttributeTypeAndValue.defaultValues(TYPE));
+    this.value = pvutils.getParametersValue(parameters, VALUE, AttributeTypeAndValue.defaultValues(VALUE));
+
+    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 TYPE): string;
+  public static override defaultValues(memberName: typeof VALUE): AttributeValueType;
+  public static override defaultValues(memberName: string): any {
+    switch (memberName) {
+      case TYPE:
+        return EMPTY_STRING;
+      case VALUE:
+        return {};
+      default:
+        return super.defaultValues(memberName);
+    }
+  }
+
+  /**
+   * @inheritdoc
+   * @asn ASN.1 schema
+   * ```asn
+   * AttributeTypeAndValue ::= Sequence {
+   *    type     AttributeType,
+   *    value    AttributeValue }
+   *
+   * AttributeType ::= OBJECT IDENTIFIER
+   *
+   * AttributeValue ::= ANY -- DEFINED BY AttributeType
+   *```
+   */
+  static override schema(parameters: Schema.SchemaParameters<{ type?: string, value?: string; }> = {}): Schema.SchemaType {
+    const names = pvutils.getParametersValue<NonNullable<typeof parameters.names>>(parameters, "names", {});
+
+    return (new asn1js.Sequence({
+      name: (names.blockName || EMPTY_STRING),
+      value: [
+        new asn1js.ObjectIdentifier({ name: (names.type || EMPTY_STRING) }),
+        new asn1js.Any({ name: (names.value || EMPTY_STRING) })
+      ]
+    }));
+  }
+
+  public fromSchema(schema: Schema.SchemaType) {
+    //#region Clear input data first
+    pvutils.clearProps(schema, [
+      TYPE,
+      "typeValue"
+    ]);
+    //#endregion
+
+    //#region Check the schema is valid
+    const asn1 = asn1js.compareSchema(schema,
+      schema,
+      AttributeTypeAndValue.schema({
+        names: {
+          type: TYPE,
+          value: "typeValue"
+        }
+      })
+    );
+
+    AsnError.assertSchema(asn1, this.className);
+    //#endregion
+
+    //#region Get internal properties from parsed schema
+    this.type = asn1.result.type.valueBlock.toString();
+    this.value = asn1.result.typeValue;
+    //#endregion
+  }
+
+  public toSchema(): asn1js.Sequence {
+    //#region Construct and return new ASN.1 schema for this object
+    return (new asn1js.Sequence({
+      value: [
+        new asn1js.ObjectIdentifier({ value: this.type }),
+        this.value
+      ]
+    }));
+    //#endregion
+  }
+
+  public toJSON(): AttributeTypeAndValueJson {
+    const _object = {
+      type: this.type
+    } as AttributeTypeAndValueJson;
+
+    if (Object.keys(this.value).length !== 0) {
+      _object.value = (this.value).toJSON();
+    } else {
+      _object.value = this.value;
+    }
+
+    return _object;
+  }
+
+  /**
+   * Compares two AttributeTypeAndValue values, or AttributeTypeAndValue with ArrayBuffer value
+   * @param compareTo The value compare to current
+   */
+  public isEqual(compareTo: AttributeTypeAndValue | ArrayBuffer): boolean {
+    const stringBlockNames = [
+      asn1js.Utf8String.blockName(),
+      asn1js.BmpString.blockName(),
+      asn1js.UniversalString.blockName(),
+      asn1js.NumericString.blockName(),
+      asn1js.PrintableString.blockName(),
+      asn1js.TeletexString.blockName(),
+      asn1js.VideotexString.blockName(),
+      asn1js.IA5String.blockName(),
+      asn1js.GraphicString.blockName(),
+      asn1js.VisibleString.blockName(),
+      asn1js.GeneralString.blockName(),
+      asn1js.CharacterString.blockName()
+    ];
+
+    if (compareTo instanceof ArrayBuffer) {
+      return pvtsutils.BufferSourceConverter.isEqual(this.value.valueBeforeDecodeView, compareTo);
+    }
+
+    if ((compareTo.constructor as typeof AttributeTypeAndValue).blockName() === AttributeTypeAndValue.blockName()) {
+      if (this.type !== compareTo.type)
+        return false;
+
+      //#region Check we do have both strings
+      const isStringPair = [false, false];
+      const thisName = (this.value.constructor as typeof asn1js.BaseBlock).blockName();
+      for (const name of stringBlockNames) {
+        if (thisName === name) {
+          isStringPair[0] = true;
+        }
+        if ((compareTo.value.constructor as typeof asn1js.BaseBlock).blockName() === name) {
+          isStringPair[1] = true;
+        }
+      }
+
+      if (isStringPair[0] !== isStringPair[1]) {
+        return false;
+      }
+
+      const isString = (isStringPair[0] && isStringPair[1]);
+      //#endregion
+
+      if (isString) {
+        const value1 = stringPrep(this.value.valueBlock.value);
+        const value2 = stringPrep(compareTo.value.valueBlock.value);
+
+        if (value1.localeCompare(value2) !== 0)
+          return false;
+      }
+      else // Comparing as two ArrayBuffers
+      {
+        if (!pvtsutils.BufferSourceConverter.isEqual(this.value.valueBeforeDecodeView, compareTo.value.valueBeforeDecodeView))
+          return false;
+      }
+
+      return true;
+    }
+
+    return false;
+  }
+
+}