1 files changed, 201 insertions, 0 deletions
diff --git a/third_party/js/PKI.js/src/Request.ts b/third_party/js/PKI.js/src/Request.ts
new file mode 100644
index 0000000000..e3397e424f
--- /dev/null
+++ b/third_party/js/PKI.js/src/Request.ts
@@ -0,0 +1,201 @@
+import * as asn1js from "asn1js";
+import * as pvutils from "pvutils";
+import { CertID, CertIDJson, CertIDSchema } from "./CertID";
+import { EMPTY_STRING } from "./constants";
+import { AsnError } from "./errors";
+import { Extension, ExtensionJson, ExtensionSchema } from "./Extension";
+import { PkiObject, PkiObjectParameters } from "./PkiObject";
+import * as Schema from "./Schema";
+
+const REQ_CERT = "reqCert";
+const SINGLE_REQUEST_EXTENSIONS = "singleRequestExtensions";
+const CLEAR_PROPS = [
+  REQ_CERT,
+  SINGLE_REQUEST_EXTENSIONS,
+];
+
+export interface IRequest {
+  reqCert: CertID;
+  singleRequestExtensions?: Extension[];
+}
+
+export interface RequestJson {
+  reqCert: CertIDJson;
+  singleRequestExtensions?: ExtensionJson[];
+}
+
+export type RequestParameters = PkiObjectParameters & Partial<IRequest>;
+
+export type RequestSchema = Schema.SchemaParameters<{
+  reqCert?: CertIDSchema;
+  extensions?: ExtensionSchema;
+  singleRequestExtensions?: string;
+}>;
+
+/**
+ * Represents an Request described in [RFC6960](https://datatracker.ietf.org/doc/html/rfc6960)
+ */
+export class Request extends PkiObject implements IRequest {
+
+  public static override CLASS_NAME = "Request";
+
+  public reqCert!: CertID;
+  public singleRequestExtensions?: Extension[];
+
+  /**
+   * Initializes a new instance of the {@link Request} class
+   * @param parameters Initialization parameters
+   */
+  constructor(parameters: RequestParameters = {}) {
+    super();
+
+    this.reqCert = pvutils.getParametersValue(parameters, REQ_CERT, Request.defaultValues(REQ_CERT));
+    if (SINGLE_REQUEST_EXTENSIONS in parameters) {
+      this.singleRequestExtensions = pvutils.getParametersValue(parameters, SINGLE_REQUEST_EXTENSIONS, Request.defaultValues(SINGLE_REQUEST_EXTENSIONS));
+    }
+
+    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 REQ_CERT): CertID;
+  public static override defaultValues(memberName: typeof SINGLE_REQUEST_EXTENSIONS): Extension[];
+  public static override defaultValues(memberName: string): any {
+    switch (memberName) {
+      case REQ_CERT:
+        return new CertID();
+      case SINGLE_REQUEST_EXTENSIONS:
+        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(memberName: string, memberValue: any): boolean {
+    switch (memberName) {
+      case REQ_CERT:
+        return (memberValue.isEqual(Request.defaultValues(memberName)));
+      case SINGLE_REQUEST_EXTENSIONS:
+        return (memberValue.length === 0);
+      default:
+        return super.defaultValues(memberName);
+    }
+  }
+
+  /**
+   * @inheritdoc
+   * @asn ASN.1 schema
+   * ```asn
+   * Request ::= SEQUENCE {
+   *    reqCert                     CertID,
+   *    singleRequestExtensions     [0] EXPLICIT Extensions OPTIONAL }
+   *```
+   */
+  public static override schema(parameters: RequestSchema = {}): Schema.SchemaType {
+    const names = pvutils.getParametersValue<NonNullable<typeof parameters.names>>(parameters, "names", {});
+
+    return (new asn1js.Sequence({
+      name: (names.blockName || EMPTY_STRING),
+      value: [
+        CertID.schema(names.reqCert || {}),
+        new asn1js.Constructed({
+          optional: true,
+          idBlock: {
+            tagClass: 3, // CONTEXT-SPECIFIC
+            tagNumber: 0 // [0]
+          },
+          value: [Extension.schema(names.extensions || {
+            names: {
+              blockName: (names.singleRequestExtensions || 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,
+      Request.schema({
+        names: {
+          reqCert: {
+            names: {
+              blockName: REQ_CERT
+            }
+          },
+          extensions: {
+            names: {
+              blockName: SINGLE_REQUEST_EXTENSIONS
+            }
+          }
+        }
+      })
+    );
+    AsnError.assertSchema(asn1, this.className);
+
+    // Get internal properties from parsed schema
+    this.reqCert = new CertID({ schema: asn1.result.reqCert });
+    if (SINGLE_REQUEST_EXTENSIONS in asn1.result) {
+      this.singleRequestExtensions = Array.from(asn1.result.singleRequestExtensions.valueBlock.value, element => new Extension({ schema: element }));
+    }
+  }
+
+  public toSchema(): asn1js.Sequence {
+    //#region Create array for output sequence
+    const outputArray = [];
+
+    outputArray.push(this.reqCert.toSchema());
+
+    if (this.singleRequestExtensions) {
+      outputArray.push(new asn1js.Constructed({
+        optional: true,
+        idBlock: {
+          tagClass: 3, // CONTEXT-SPECIFIC
+          tagNumber: 0 // [0]
+        },
+        value: [
+          new asn1js.Sequence({
+            value: Array.from(this.singleRequestExtensions, o => o.toSchema())
+          })
+        ]
+      }));
+    }
+    //#endregion
+
+    //#region Construct and return new ASN.1 schema for this object
+    return (new asn1js.Sequence({
+      value: outputArray
+    }));
+    //#endregion
+  }
+
+  public toJSON(): RequestJson {
+    const res: RequestJson = {
+      reqCert: this.reqCert.toJSON()
+    };
+
+    if (this.singleRequestExtensions) {
+      res.singleRequestExtensions = Array.from(this.singleRequestExtensions, o => o.toJSON());
+    }
+
+    return res;
+  }
+
+}
+