const { spawn } = require('child_process'); const fs = require("fs"); const config = require("../../config"); /* * Gets the local latest zblock * * Returns: * - JSON object * { zlatest: "Qm..." } * */ function fetchZblock(zblock, res){ res.send(fs.readFileSync(config.workDir+"/ipfs/"+zblock)); }; module.exports = (req, res) => { console.log(req.query) if ( (req.query.ipfs) && req.query.ipfs.length === 46 ){ regex= /Qm[A-Za-z0-9]{44}/; if (regex.test(req.query.ipfs)){ if (req.query.ipfs === "QmbFMke1KXqnYyBBWxB74N4c5SBnJMVAiMNRcGu6x1AwQH" ){ res.send({error:"Genesis block"}); } else { fetchZblock(req.query.ipfs,res); } } else { res.send({error:"Invalid data: regexp failed to pass"}); } } else { res.send({error:"Invalid data: no valid zblock was provided"}); } }