app.js

const express = require("express");
const path = require("path");
const cookieParser = require("cookie-parser");
const logger = require("morgan");
const cron = require("./scheduling/cron.js");

// Load dev config if suitable.
try {
  let config = require("./config.json");
  for (let prop in config) {
    if (config.hasOwnProperty(prop)) {
      process.env[prop] = config[prop];
    }
  }
} catch (err) {
  console.error("No local config present.");
}

if (process.env.debug) {
  // Some debugging
  //var librisFolioDataMover = new (require('./librisfoliodatamover.js'))();
  //librisFolioDataMover.moveData(10939573);
  //librisFolioDataMover.moveData(null, '2018-11-13T12:00:00Z');
  //librisFolioDataMover.moveData();
  //var fetchScheduler = new (require('./scheduling/fetchscheduler.js'))();
  //fetchScheduler.getLatestFetchTimestamp();
}

cron.initialize(process.env.cronenabled || false);

const apiRouter = require("./routes/api");

const app = express();

app.use(logger("dev"));
app.use(express.json());
app.use(express.urlencoded({ extended: false }));
app.use(cookieParser());
app.use(express.static(path.join(__dirname, "public")));

app.use("/api", apiRouter);

app.get("/bookmarklet.js", (req, res) => {
  let jsString = `
  if (location.host === "libris.kb.se") {
    if (/^\\/katalogisering\\/[\\w\\d]{15}/.test(location.pathname)) {
      if (((document.getElementById("formPath-mainEntity.@type").childNodes[6].textContent.trim().indexOf("Tryck") > -1) || 
           (document.getElementById("formPath-mainEntity.@type").childNodes[6].textContent.trim().indexOf("Instans") > -1)) && 
        (document.getElementsByClassName("CreateItem")[0].textContent.trim().indexOf("Visa bestånd") > -1)) {
        let librisurl = \`https://\${location.host}\${location.pathname.replace(
          "/katalogisering",
          ""
        )}\`;
        location.href = \`${process.env.serverurl}/api/PostAndRedirect?id=\${librisurl}\`;
      } else {
        alert("Posten kunde ej hämtas. Kolla om du står på instansen, om det finns bestånd och att posten inte är elektronisk");
      }
    } else {
      alert("Du är inte i katalogiseringsverktyget.");
    }
  } else {
    alert("Du besöker inte Libris!");
  }
  `;
  res.set("Content-Type", "application/javascript");
  res.send(jsString);
});

app.get("/eds-to-folio", function(req, res) {
  res.send(
    `<a href="javascript:(function(){window.s0=document.createElement('script');window.s0.setAttribute('type','text/javascript');window.s0.setAttribute('src','${process.env.serverurl}/eds-to-folio.js?t='+Date.now());document.getElementsByTagName('body')[0].appendChild(window.s0);})();">EDS->FOLIO</a>`
  );
});

app.get("/eds-to-folio.js", (req, res) => {
  let jsString = `
  if(location.host.includes("ebscohost.com")) {
    if(location.pathname.includes('eds/detail')) {
      let clc=/.+clc\\.([0-9a-f\.\-]{36})/.exec(window.location.hash)[1];
      let uidparts=/(.{8}).(.{4}).(.{4}).(.{4}).(.{12})/.exec(clc);
      let uid=uidparts[1]+'-'+uidparts[2]+'-'+uidparts[3]+'-'+uidparts[4]+'-'+uidparts[5];
      let url=\`${process.env.folioUrl}/inventory/view/\${uid}?qindex=id&query=\${uid}\`;
      location.href=url;
    } else {
        alert('Du står inte på detaljsidesvyn.')
    }
  } else {
      alert("Du besöker inte eds!")
  }
  `;
  res.set("Content-Type", "application/javascript");
  res.send(jsString);
});

app.get("/folio-to-eds", function(req, res) {
  res.send(
    `<a href="javascript:(function(){window.s0=document.createElement('script');window.s0.setAttribute('type','text/javascript');window.s0.setAttribute('src','${process.env.serverurl}/folio-to-eds.js?t='+Date.now());document.getElementsByTagName('body')[0].appendChild(window.s0);})();">FOLIO->EDS</a>`
  );
});

app.get("/folio-to-eds.js", (req, res) => {
  let jsString = `
  if(location.host.includes("chalmers.folio.ebsco.com")) {
    if(location.pathname.includes('inventory/view/')) {
      let uuid = location.pathname.split('/')[3];
      let url='https://search.ebscohost.com/login.aspx?direct=true&scope=site&site=eds-live&authtype=guest&custid=s3911979&groupid=main&profile=eds&lang=en&bquery=' + uuid;
      window.open(url);
    } else {
        alert('Du står inte på detaljsidesvyn.')
    }
  } else {
      alert("Du besöker inte Folio!")
  }
  `;
  res.set("Content-Type", "application/javascript");
  res.send(jsString);
});


/**
 * Module dependencies.
 */

let debug = require("debug")("chami:server");
let http = require("http");

/**
 * Get port from environment and store in Express.
 */

let port = normalizePort(process.env.PORT || "3000");
app.set("port", port);

/**
 * Create HTTP server.
 */

let server = http.createServer(app);

/**
 * Listen on provided port, on all network interfaces.
 */

server.listen(port);
server.on("error", onError);
server.on("listening", onListening);

/**
 * Normalize a port into a number, string, or false.
 */

function normalizePort(val) {
  let port = parseInt(val, 10);

  if (isNaN(port)) {
    // named pipe
    return val;
  }

  if (port >= 0) {
    // port number
    return port;
  }

  return false;
}

/**
 * Event listener for HTTP server "error" event.
 */

function onError(error) {
  if (error.syscall !== "listen") {
    throw error;
  }

  let bind = typeof port === "string" ? "Pipe " + port : "Port " + port;

  // handle specific listen errors with friendly messages
  switch (error.code) {
    case "EACCES":
      console.error(bind + " requires elevated privileges");
      process.exit(1);
      break;
    case "EADDRINUSE":
      console.error(bind + " is already in use");
      process.exit(1);
      break;
    default:
      throw error;
  }
}

/**
 * Event listener for HTTP server "listening" event.
 */

function onListening() {
  let addr = server.address();
  let bind = typeof addr === "string" ? "pipe " + addr : "port " + addr.port;
  debug("Listening on " + bind);
}