<commit_before>var express = require('express');
var router = express.Router();
var fs = require('fs');

router.get('/', function(req, res, next) {
    res.render('problem/webapp4');
});

router.post('/', function(req, res, next) {

    var username='alice';
    var query = (req.body.query != null) req.body.query || "";
    
    var buf = fs.readFileSync('./logfile');
    var match = new RegExp('(.*user=' + username + ' .*' + query + '.*)', 'gm');

    var result = buf.toString().match(match);

    res.send({result});
});

module.exports = router;<commit_msg>webapp4<commit_after>var express = require('express');
var router = express.Router();
var fs = require('fs');

router.get('/', function(req, res, next) {
    res.render('problem/webapp4');
});

router.post('/', function(req, res, next) {

    var username='alice';
    var query = (req.body.query != null) ? req.body.query : "";
    
    var buf = fs.readFileSync('./logfile');
    var match = new RegExp('(.*user=' + username + ' .*' + query + '.*)', 'gm');

    var result = buf.toString().match(match);

    res.send({result});
});

module.exports = router;
{'fraction_non_alphanumeric': 0.2222222222222222, 'fraction_numerical': 0.0026666666666666666, 'mean_word_length': 3.5772357723577235, 'pattern_counts': {'":': 0, '<': 3, '<?xml version=': 0, '>': 3, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
{'dir': 'git-commits-cleaned', 'id': '7188863', 'n_tokens_mistral': 378, 'n_tokens_neox': 366, 'n_words': 81}