1 files changed, 160 insertions, 0 deletions
diff --git a/third_party/js/PKI.js/src/PolicyInformation.ts b/third_party/js/PKI.js/src/PolicyInformation.ts
new file mode 100644
index 0000000000..4a6362f844
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+++ b/third_party/js/PKI.js/src/PolicyInformation.ts
@@ -0,0 +1,160 @@
+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 { PolicyQualifierInfo, PolicyQualifierInfoJson } from "./PolicyQualifierInfo";
+import * as Schema from "./Schema";
+
+export const POLICY_IDENTIFIER = "policyIdentifier";
+export const POLICY_QUALIFIERS = "policyQualifiers";
+const CLEAR_PROPS = [
+  POLICY_IDENTIFIER,
+  POLICY_QUALIFIERS
+];
+
+export interface IPolicyInformation {
+  policyIdentifier: string;
+  policyQualifiers?: PolicyQualifierInfo[];
+}
+
+export type PolicyInformationParameters = PkiObjectParameters & Partial<IPolicyInformation>;
+
+export interface PolicyInformationJson {
+  policyIdentifier: string;
+  policyQualifiers?: PolicyQualifierInfoJson[];
+}
+
+/**
+ * Represents the PolicyInformation structure described in [RFC5280](https://datatracker.ietf.org/doc/html/rfc5280)
+ */
+export class PolicyInformation extends PkiObject implements IPolicyInformation {
+
+  public static override CLASS_NAME = "PolicyInformation";
+
+  public policyIdentifier!: string;
+  public policyQualifiers?: PolicyQualifierInfo[];
+
+  /**
+   * Initializes a new instance of the {@link PolicyInformation} class
+   * @param parameters Initialization parameters
+   */
+  constructor(parameters: PolicyInformationParameters = {}) {
+    super();
+
+    this.policyIdentifier = pvutils.getParametersValue(parameters, POLICY_IDENTIFIER, PolicyInformation.defaultValues(POLICY_IDENTIFIER));
+    if (POLICY_QUALIFIERS in parameters) {
+      this.policyQualifiers = pvutils.getParametersValue(parameters, POLICY_QUALIFIERS, PolicyInformation.defaultValues(POLICY_QUALIFIERS));
+    }
+    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 POLICY_IDENTIFIER): string;
+  public static override defaultValues(memberName: typeof POLICY_QUALIFIERS): PolicyQualifierInfo[];
+  public static override defaultValues(memberName: string): any {
+    switch (memberName) {
+      case POLICY_IDENTIFIER:
+        return EMPTY_STRING;
+      case POLICY_QUALIFIERS:
+        return [];
+      default:
+        return super.defaultValues(memberName);
+    }
+  }
+
+  /**
+   * @inheritdoc
+   * @asn ASN.1 schema
+   * ```asn
+   * PolicyInformation ::= SEQUENCE {
+   *    policyIdentifier   CertPolicyId,
+   *    policyQualifiers   SEQUENCE SIZE (1..MAX) OF
+   *    PolicyQualifierInfo OPTIONAL }
+   *
+   * CertPolicyId ::= OBJECT IDENTIFIER
+   *```
+   */
+  public static override schema(parameters: Schema.SchemaParameters<{ policyIdentifier?: string; policyQualifiers?: 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.policyIdentifier || EMPTY_STRING) }),
+        new asn1js.Sequence({
+          optional: true,
+          value: [
+            new asn1js.Repeated({
+              name: (names.policyQualifiers || EMPTY_STRING),
+              value: PolicyQualifierInfo.schema()
+            })
+          ]
+        })
+      ]
+    }));
+  }
+
+  /**
+   * Converts parsed ASN.1 object into current class
+   * @param schema
+   */
+  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,
+      PolicyInformation.schema({
+        names: {
+          policyIdentifier: POLICY_IDENTIFIER,
+          policyQualifiers: POLICY_QUALIFIERS
+        }
+      })
+    );
+    AsnError.assertSchema(asn1, this.className);
+
+    // Get internal properties from parsed schema
+    this.policyIdentifier = asn1.result.policyIdentifier.valueBlock.toString();
+    if (POLICY_QUALIFIERS in asn1.result) {
+      this.policyQualifiers = Array.from(asn1.result.policyQualifiers, element => new PolicyQualifierInfo({ schema: element }));
+    }
+  }
+
+  public toSchema(): asn1js.Sequence {
+    //Create array for output sequence
+    const outputArray = [];
+
+    outputArray.push(new asn1js.ObjectIdentifier({ value: this.policyIdentifier }));
+
+    if (this.policyQualifiers) {
+      outputArray.push(new asn1js.Sequence({
+        value: Array.from(this.policyQualifiers, o => o.toSchema())
+      }));
+    }
+
+    // Construct and return new ASN.1 schema for this object
+    return (new asn1js.Sequence({
+      value: outputArray
+    }));
+  }
+
+  public toJSON(): PolicyInformationJson {
+    const res: PolicyInformationJson = {
+      policyIdentifier: this.policyIdentifier
+    };
+
+    if (this.policyQualifiers)
+      res.policyQualifiers = Array.from(this.policyQualifiers, o => o.toJSON());
+
+    return res;
+  }
+
+}