105 lines
2.6 KiB
JavaScript
105 lines
2.6 KiB
JavaScript
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var __awaiter = this && this.__awaiter || function (thisArg, _arguments, P, generator) {
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function adopt(value) {
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return value instanceof P ? value : new P(function (resolve) {
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resolve(value);
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});
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}
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return new (P || (P = Promise))(function (resolve, reject) {
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function fulfilled(value) {
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try {
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step(generator.next(value));
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} catch (e) {
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reject(e);
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}
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}
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function rejected(value) {
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try {
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step(generator["throw"](value));
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} catch (e) {
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reject(e);
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}
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}
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function step(result) {
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result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected);
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}
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step((generator = generator.apply(thisArg, _arguments || [])).next());
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});
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};
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import { getFeedUpdateChunkReference } from "./index.js";
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import { readUint64BigEndian } from "../utils/uint64.js";
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import { bytesToHex } from "../utils/hex.js";
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function makeNumericIndex(index) {
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if (index instanceof Uint8Array) {
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return readUint64BigEndian(index);
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}
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if (typeof index === 'string') {
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return parseInt(index);
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}
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if (typeof index === 'number') {
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return index;
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}
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throw new TypeError('Unknown type of index!');
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}
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/**
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* Function that checks if a chunk is retrievable by actually downloading it.
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* The /stewardship/{reference} endpoint does not support verification of chunks, but only manifest's references.
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*
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* @param bee
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* @param ref
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* @param options
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*/
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function isChunkRetrievable(bee, ref, options) {
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return __awaiter(this, void 0, void 0, function* () {
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try {
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yield bee.downloadChunk(ref, options);
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return true;
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} catch (e) {
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const err = e;
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if (err.status === 404) {
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return false;
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}
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throw e;
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}
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});
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}
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/**
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* Creates array of references for all sequence updates chunk up to the given index.
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*
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* @param owner
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* @param topic
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* @param index
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*/
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function getAllSequenceUpdateReferences(owner, topic, index) {
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const numIndex = makeNumericIndex(index);
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const updateReferences = new Array(numIndex + 1);
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for (let i = 0; i <= numIndex; i++) {
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updateReferences[i] = bytesToHex(getFeedUpdateChunkReference(owner, topic, i));
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}
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return updateReferences;
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}
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export function areAllSequentialFeedsUpdateRetrievable(bee, owner, topic, index, options) {
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return __awaiter(this, void 0, void 0, function* () {
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const chunkRetrievablePromises = getAllSequenceUpdateReferences(owner, topic, index).map(ref => __awaiter(this, void 0, void 0, function* () {
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return isChunkRetrievable(bee, ref, options);
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}));
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return (yield Promise.all(chunkRetrievablePromises)).every(result => result);
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});
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}
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