@zburn/core/lib/ipfs/pin.js

Core utilities for the ZBURN ecosystem.

const https = require('https');
const { loadConfig } = require('../../config')
const config = loadConfig();
const httpsAgent = new https.Agent({
  rejectUnauthorized: false
});
async function stimuleCidOnPublicGateways(cid) {

  for (const gateway of config.stimulate_gateways) {
    const url = gateway + cid;
    try {
      const res = await fetch(url, { method: 'HEAD', timeout: 5000 });
      if (res.ok) {
        console.log(`STIMULATION SUCCESS: Gateway ${gateway} responded OK for CID ${cid}`);
      } else {
        console.warn(`STIMULATION WARNING: Gateway ${gateway} responded ${res.status} for CID ${cid}`);
      }
    } catch (err) {
      console.error(`STIMULATION ERROR: Error contacting gateway ${gateway} for CID ${cid}:`, err.message);
    }
  }
}

function interpolate(template, cid) {
  if (typeof template === 'string') {
    return template.replace(/{{cid}}/g, cid);
  }
  const str = JSON.stringify(template).replace(/{{cid}}/g, cid);
  return JSON.parse(str);
}

async function pinEveryWhere(cid) {
  for (const svc of config.pin_gateways) {
    const url = interpolate(svc.urlTemplate, cid);
    const method = svc.method.toUpperCase();
    const headers = { ...(svc.headers || {}) };
    let body = null;

    // Auth
    if (svc.auth?.type === 'Bearer') {
      const token = process.env[svc.auth.tokenEnvVar] ? process.env[svc.auth.tokenEnvVar] : config.pin_env_var[svc.auth.tokenEnvVar] ? config.pin_env_var[svc.auth.tokenEnvVar] : "";
      headers['Authorization'] = `Bearer ${token}`;
    }

    // Body
    if (svc.bodyTemplate && method === 'POST') {
      body = JSON.stringify(interpolate(svc.bodyTemplate, cid));
      headers['Content-Type'] = headers['Content-Type'] || 'application/json';
    }

    try {
      const res = await fetch(url, { method, headers, body, agent: httpsAgent });
      if (!res.ok) {
        console.error(`PIN ERROR ${res.status} ${res.statusText} @ ${url}`);
        continue;
      }
      const result = await res.json().catch(() => null);
      console.log(`PIN SUCCESS @ ${url}`, result);
    } catch (err) {
      console.error(`PIN EXCEPTION @ ${url}`, err);
    }
  }
}

module.exports = {
  stimuleCidOnPublicGateways,
  pinEveryWhere
};