0d073fa89e
- Add GETTING_STARTED.md with quick start guide and development modes - Add INSTALL.sh automated installation script - Add INSTALLATION_CHECKLIST.md, INSTALLATION_SUCCESS.md, and INSTALLATION_SUMMARY.md - Add QUICK_REFERENCE.md for common commands - Add SETUP_GUIDE.md with detailed setup instructions - Update README.md with improved project overview - Add did-wallet app dependencies and node_modules
93 lines
1.9 KiB
JavaScript
93 lines
1.9 KiB
JavaScript
import { CID } from 'multiformats/cid'
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import { decodeNode } from './pb-decode.js'
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import { encodeNode } from './pb-encode.js'
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import { prepare, validate, createNode, createLink, toByteView } from './util.js'
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/**
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* @template T
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* @typedef {import('multiformats/codecs/interface').ByteView<T>} ByteView
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*/
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/**
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* @template T
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* @typedef {import('multiformats/codecs/interface').ArrayBufferView<T>} ArrayBufferView
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*/
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/**
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* @typedef {import('./interface.js').PBLink} PBLink
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* @typedef {import('./interface.js').PBNode} PBNode
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*/
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export const name = 'dag-pb'
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export const code = 0x70
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/**
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* @param {PBNode} node
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* @returns {ByteView<PBNode>}
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*/
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export function encode (node) {
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validate(node)
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const pbn = {}
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if (node.Links) {
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pbn.Links = node.Links.map((l) => {
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const link = {}
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if (l.Hash) {
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link.Hash = l.Hash.bytes // cid -> bytes
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}
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if (l.Name !== undefined) {
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link.Name = l.Name
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}
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if (l.Tsize !== undefined) {
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link.Tsize = l.Tsize
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}
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return link
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})
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}
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if (node.Data) {
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pbn.Data = node.Data
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}
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return encodeNode(pbn)
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}
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/**
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* @param {ByteView<PBNode> | ArrayBufferView<PBNode>} bytes
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* @returns {PBNode}
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*/
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export function decode (bytes) {
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const buf = toByteView(bytes)
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const pbn = decodeNode(buf)
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const node = {}
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if (pbn.Data) {
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node.Data = pbn.Data
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}
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if (pbn.Links) {
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node.Links = pbn.Links.map((l) => {
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const link = {}
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try {
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link.Hash = CID.decode(l.Hash)
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} catch {
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// ignore parse fail
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}
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if (!link.Hash) {
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throw new Error('Invalid Hash field found in link, expected CID')
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}
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if (l.Name !== undefined) {
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link.Name = l.Name
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}
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if (l.Tsize !== undefined) {
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link.Tsize = l.Tsize
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}
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return link
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})
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}
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return node
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}
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export { prepare, validate, createNode, createLink }
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