1 files changed, 151 insertions, 0 deletions
diff --git a/third_party/js/PKI.js/src/AccessDescription.ts b/third_party/js/PKI.js/src/AccessDescription.ts
new file mode 100644
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+++ b/third_party/js/PKI.js/src/AccessDescription.ts
@@ -0,0 +1,151 @@
+import * as asn1js from "asn1js";
+import * as pvutils from "pvutils";
+import { EMPTY_STRING } from "./constants";
+import { AsnError } from "./errors";
+import { GeneralName, GeneralNameJson, GeneralNameSchema } from "./GeneralName";
+import { PkiObject, PkiObjectParameters } from "./PkiObject";
+import * as Schema from "./Schema";
+
+const ACCESS_METHOD = "accessMethod";
+const ACCESS_LOCATION = "accessLocation";
+const CLEAR_PROPS = [
+  ACCESS_METHOD,
+  ACCESS_LOCATION,
+];
+
+export interface IAccessDescription {
+  /**
+   * The type and format of the information are specified by the accessMethod field. This profile defines two accessMethod OIDs: id-ad-caIssuers and id-ad-ocsp
+   */
+  accessMethod: string;
+  /**
+   * The accessLocation field specifies the location of the information
+   */
+  accessLocation: GeneralName;
+}
+
+export type AccessDescriptionParameters = PkiObjectParameters & Partial<IAccessDescription>;
+
+/**
+ * JSON representation of {@link AccessDescription}
+ */
+export interface AccessDescriptionJson {
+  accessMethod: string;
+  accessLocation: GeneralNameJson;
+}
+
+/**
+ * Represents the AccessDescription structure described in [RFC5280](https://datatracker.ietf.org/doc/html/rfc5280)
+ *
+ * The authority information access extension indicates how to access
+ * information and services for the issuer of the certificate in which
+ * the extension appears. Information and services may include on-line
+ * validation services and CA policy data. This extension may be included in
+ * end entity or CA certificates. Conforming CAs MUST mark this
+ * extension as non-critical.
+ */
+export class AccessDescription extends PkiObject implements IAccessDescription {
+
+  public static override CLASS_NAME = "AccessDescription";
+
+  public accessMethod!: string;
+  public accessLocation!: GeneralName;
+
+  /**
+   * Initializes a new instance of the {@link AccessDescription} class
+   * @param parameters Initialization parameters
+   */
+  constructor(parameters: AccessDescriptionParameters = {}) {
+    super();
+
+    this.accessMethod = pvutils.getParametersValue(parameters, ACCESS_METHOD, AccessDescription.defaultValues(ACCESS_METHOD));
+    this.accessLocation = pvutils.getParametersValue(parameters, ACCESS_LOCATION, AccessDescription.defaultValues(ACCESS_LOCATION));
+
+    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 ACCESS_METHOD): string;
+  public static override defaultValues(memberName: typeof ACCESS_LOCATION): GeneralName;
+  public static override defaultValues(memberName: string): any {
+    switch (memberName) {
+      case ACCESS_METHOD:
+        return EMPTY_STRING;
+      case ACCESS_LOCATION:
+        return new GeneralName();
+      default:
+        return super.defaultValues(memberName);
+    }
+  }
+
+  /**
+   * @inheritdoc
+   * @asn ASN.1 schema
+   * ```asn
+   * AccessDescription ::= SEQUENCE {
+   *    accessMethod          OBJECT IDENTIFIER,
+   *    accessLocation        GeneralName  }
+   *```
+   */
+  static override schema(parameters: Schema.SchemaParameters<{ accessMethod?: string; accessLocation?: GeneralNameSchema; }> = {}) {
+    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.accessMethod || EMPTY_STRING) }),
+        GeneralName.schema(names.accessLocation || {})
+      ]
+    }));
+  }
+
+  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,
+      AccessDescription.schema({
+        names: {
+          accessMethod: ACCESS_METHOD,
+          accessLocation: {
+            names: {
+              blockName: ACCESS_LOCATION
+            }
+          }
+        }
+      })
+    );
+    AsnError.assertSchema(asn1, this.className);
+
+    // Get internal properties from parsed schema
+    this.accessMethod = asn1.result.accessMethod.valueBlock.toString();
+    this.accessLocation = new GeneralName({ schema: asn1.result.accessLocation });
+  }
+
+  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.accessMethod }),
+        this.accessLocation.toSchema()
+      ]
+    }));
+    //#endregion
+  }
+
+  public toJSON(): AccessDescriptionJson {
+    return {
+      accessMethod: this.accessMethod,
+      accessLocation: this.accessLocation.toJSON()
+    };
+  }
+
+}