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/*
* Receives an SHA512SUM as a SBlock and if exists returns the SBlock content.
*
*/
const { spawn } = require('child_process');
const fs = require('fs');
const config = require("../../config.js");
function getSBlock(req, res)
{
var args = req.url.split("/");
var sblock = args[3];
regex= /[a-f0-9]{128}/
if (regex.test(sblock)){
genesisreg = /0{128}/
if (!genesisreg.test(sblock)){
var path = config.minedBlocksDir+"/"+sblock;
const command = spawn("cat",[config.minedBlocksDir+"/"+sblock]);
response_string = "";
command.stdout.on("data", data => {
response_string += data;
});
command.stderr.on("data", data => {
console.log(`stderr: ${data}`);
});
command.on('error', (error) => {
console.log(`error: ${error.message}`);
response_string={err:"error.message"};
});
command.on("close", code => {
if ( code === 0 ) {
res.writeHead(200, {'Content-Type': 'application/json'});
res.end(JSON.stringify(JSON.parse(fs.readFileSync(path))));
} else {
res.writeHead(404, {'Content-Type': 'application/json'});
res.end(JSON.stringify({error:"Sblock not found"}));
}
console.log(`child process exited with code ${code}`);
});
} else {
res.writeHead(200, {'Content-Type': 'application/json'});
res.end(JSON.stringify({sblock:"Genesis Block - Arching Kaos Net"}));
}
} else {
res.writeHead(404, {'Content-Type': 'application/json'});
res.end(JSON.stringify({error:"No hash"}));
}
}
module.exports = getSBlock;
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