/* [Error] Message=Unable to open TWAIN source [Scan] Pages=0 */

// Basic loads var fs = require("fs"); var http = require("http");

var timer_forever = null; var timer_tick = 3000; var read_filename = 'C:\quickscan\qs_done.dat';

// WebService var kiosk = 'bri1'; var kioskID = '2'; var agentID = 'secure'; var webServiceURL = agentID + '.example.com';

function webServicePost(input) { console.log(webServiceURL, kioskID, input);

var options = { hostname: webServiceURL, port: 80, path: '/beehive/epson?userid=' + kioskID + '&status=' + input, method: 'GET' };

var req = http.request(options, function(res) { res.setEncoding('utf8'); res.on('data', function (chunk) { console.log('BODY: ' + chunk); }); });

req.on('error', function(e) { console.log('problem with request: ' + e.message); }); req.end();

}

function parseINIString(data){ var regex = { section: /^\s*[\s*([^\]])\s]\s*$/, param: /^\s*([^=]+?)\s*=\s*(.?)\s$/, comment: /^\s*;.*$/ };

var value = {}; var lines = data.split(/[\r\n]+/); var section = null;

lines.forEach(function(line){ if(regex.comment.test(line)){ return; } else if(regex.param.test(line)){ var match = line.match(regex.param); if(section){ value[section][match[1]] = match[2]; } else { value[match[1]] = match[2]; } } else if(regex.section.test(line)){ var match = line.match(regex.section); value[match[1]] = {}; section = match[1]; } else if(line.length == 0 && section){ section = null; }; }); return value; }

function recall() {
timer_forever = setTimeout(function() { clearTimeout(timer_forever);
listenFile(); }, timer_tick); }

// // NOTE: // if the file do not exist then the 1st scan feedback will fail // if the file name do exist before the service started. Then it will // give feedback properly // function listenFile() { try { var data = fs.watch(read_filename, {persistent:true}, (eventType,filename) => { try { if(eventType=='change') { var datas = fs.readFileSync(read_filename, 'utf8'); var data_to_ini = parseINIString(datas); var scanned_page = data_to_ini['Scan']['Pages']; webServicePost(scanned_page); } } catch(ee) { } });

} catch(e) { console.log('>>> Please wait...'); recall(); } }

listenFile();