Scan your Firefox bookmarks exported JSON for HTTPS bookmarks succeptable to heartbleed exploit

index.js

var fs = require("fs");
var url = require("url");

var heartbleed = require("heartbleed");
var jsonselect = require("jsonselect");
var Promise = require("promise");

var readFile = Promise.denodeify(fs.readFile);

readFile("bookmarks.json", "utf8").then(JSON.parse).then(function (data) {
    var httpsUris = uniqueUris(data).map(heartbleed);

    Promise.all(httpsUris).then(function (results) {
        results.filter(filterNoSafe).forEach(function (warning) {
            console.log("[%s] %s -- %s", warning.status, warning.host, warning.error);
        });
    }).then(null, console.error);
}, console.error);


function uniqueUris(data) {
    var httpsUris = {};

    jsonselect.forEach(".uri", data, function (uri) {
        uri = url.parse(uri);
        if ((uri.protocol === "https:") && !httpsUris.hasOwnProperty(uri.hostname)) {
            httpsUris[uri.hostname] = true;
        }
    });
    return Object.keys(httpsUris).sort();
}

function filterNoSafe(result) {
    return (result.code !== 1);
}