@ceramicnetwork/pinning-ipfs-backend/lib/index.js

IPFS Pinning backend

var __classPrivateFieldSet = (this && this.__classPrivateFieldSet) || function (receiver, state, value, kind, f) {
    if (kind === "m") throw new TypeError("Private method is not writable");
    if (kind === "a" && !f) throw new TypeError("Private accessor was defined without a setter");
    if (typeof state === "function" ? receiver !== state || !f : !state.has(receiver)) throw new TypeError("Cannot write private member to an object whose class did not declare it");
    return (kind === "a" ? f.call(receiver, value) : f ? f.value = value : state.set(receiver, value)), value;
};
var __classPrivateFieldGet = (this && this.__classPrivateFieldGet) || function (receiver, state, kind, f) {
    if (kind === "a" && !f) throw new TypeError("Private accessor was defined without a getter");
    if (typeof state === "function" ? receiver !== state || !f : !state.has(receiver)) throw new TypeError("Cannot read private member from an object whose class did not declare it");
    return kind === "m" ? f : kind === "a" ? f.call(receiver) : f ? f.value : state.get(receiver);
};
var _IpfsPinning_ipfs;
import * as sha256 from '@stablelib/sha256';
import { toString } from 'uint8arrays/to-string';
import { create as createIpfsClient } from 'ipfs-http-client';
const FROM_CONTEXT_HOST = 'ipfs+context';
export class NoIpfsInstanceError extends Error {
    constructor() {
        super('No IPFS instance available');
    }
}
const textEncoder = new TextEncoder();
export class IpfsPinning {
    constructor(connectionString, ipfs) {
        this.connectionString = connectionString;
        _IpfsPinning_ipfs.set(this, void 0);
        if (connectionString == 'ipfs+context') {
            this.ipfsAddress = FROM_CONTEXT_HOST;
        }
        else {
            const url = new URL(connectionString);
            const ipfsHost = url.hostname;
            const ipfsPort = parseInt(url.port, 10) || 5001;
            const protocol = url.protocol
                .replace('ipfs+http:', 'http')
                .replace('ipfs+https:', 'https')
                .replace('ipfs+context:', FROM_CONTEXT_HOST);
            if (protocol === FROM_CONTEXT_HOST) {
                this.ipfsAddress = FROM_CONTEXT_HOST;
            }
            else {
                this.ipfsAddress = `${protocol}://${ipfsHost}:${ipfsPort}`;
            }
        }
        __classPrivateFieldSet(this, _IpfsPinning_ipfs, ipfs, "f");
        const bytes = textEncoder.encode(this.connectionString);
        const digest = toString(sha256.hash(bytes), 'base64urlpad');
        this.id = `${IpfsPinning.designator}@${digest}`;
    }
    get ipfs() {
        return __classPrivateFieldGet(this, _IpfsPinning_ipfs, "f");
    }
    open() {
        if (this.ipfsAddress === FROM_CONTEXT_HOST) {
            if (!__classPrivateFieldGet(this, _IpfsPinning_ipfs, "f")) {
                throw new NoIpfsInstanceError();
            }
        }
        else {
            __classPrivateFieldSet(this, _IpfsPinning_ipfs, createIpfsClient({
                url: this.ipfsAddress,
            }), "f");
        }
    }
    async close() {
    }
    async pin(cid) {
        await __classPrivateFieldGet(this, _IpfsPinning_ipfs, "f")?.pin.add(cid, { recursive: false });
    }
    async unpin(cid) {
        await __classPrivateFieldGet(this, _IpfsPinning_ipfs, "f")?.pin.rm(cid);
    }
    async ls() {
        const iterable = __classPrivateFieldGet(this, _IpfsPinning_ipfs, "f")?.pin.ls();
        if (iterable) {
            const result = {};
            for await (const r of iterable) {
                result[r.cid.toString()] = [this.id];
            }
            return result;
        }
        else {
            return {};
        }
    }
    async info() {
        return { [this.id]: {} };
    }
}
_IpfsPinning_ipfs = new WeakMap();
IpfsPinning.designator = 'ipfs';
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