lib/functions.js.php

   1 <?php
   2 /*
   3  *  Jirafeau, your web file repository
   4  *  Copyright (C) 2015  Jerome Jutteau <j.jutteau@gmail.com>
   5  *  Copyright (C) 2015  Nicola Spanti (RyDroid) <dev@nicola-spanti.info>
   6  *
   7  *  This program is free software: you can redistribute it and/or modify
   8  *  it under the terms of the GNU Affero General Public License as
   9  *  published by the Free Software Foundation, either version 3 of the
  10  *  License, or (at your option) any later version.
  11  *
  12  *  This program is distributed in the hope that it will be useful,
  13  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  *  GNU Affero General Public License for more details.
  16  *
  17  *  You should have received a copy of the GNU Affero General Public License
  18  *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
  19  */
  20
  21 header('Content-Type: text/javascript');
  22
  23 define('JIRAFEAU_ROOT', dirname(__FILE__) . '/../');
  24
  25 require(JIRAFEAU_ROOT . 'lib/settings.php');
  26 require(JIRAFEAU_ROOT . 'lib/functions.php');
  27 require(JIRAFEAU_ROOT . 'lib/lang.php');
  28 ?>
  29
  30 function translate (expr)
  31 {
  32     var lang_array = <?php echo json_lang_generator() ?>;
  33     if (lang_array.hasOwnProperty(expr))
  34         return lang_array[expr];
  35     return expr;
  36 }
  37
  38 function isEmpty(str) {
  39     return (!str || 0 === str.length);
  40 }
  41
  42 // Extend date object with format method
  43 Date.prototype.format = function(format) {
  44     format = format || 'YYYY-MM-DD hh:mm';
  45
  46     var zeropad = function(number, length) {
  47         number = number.toString();
  48         length = length || 2;
  49         while(number.length < length)
  50             number = '0' + number;
  51         return number;
  52     },
  53     formats = {
  54         YYYY: this.getFullYear(),
  55         MM: zeropad(this.getMonth() + 1),
  56         DD: zeropad(this.getDate()),
  57         hh: zeropad(this.getHours()),
  58         mm: zeropad(this.getMinutes()),
  59         O: (function() {
  60             localDate = new Date;
  61             sign = (localDate.getTimezoneOffset() > 0) ? '-' : '+';
  62             offset = Math.abs(localDate.getTimezoneOffset());
  63             hours = zeropad(Math.floor(offset / 60));
  64             minutes = zeropad(offset % 60);
  65             return sign + hours + ":" + minutes;
  66         })()
  67     },
  68     pattern = '(' + Object.keys(formats).join(')|(') + ')';
  69
  70     return format.replace(new RegExp(pattern, 'g'), function(match) {
  71         return formats[match];
  72     });
  73 };
  74
  75 function dateFromUtcString(datestring) {
  76     // matches »YYYY-MM-DD hh:mm«
  77     var m = datestring.match(/(\d+)-(\d+)-(\d+)\s+(\d+):(\d+)/);
  78     return new Date(Date.UTC(+m[1], +m[2] - 1, +m[3], +m[4], +m[5], 0));
  79 }
  80
  81 function dateFromUtcTimestamp(datetimestamp) {
  82     return new Date(parseInt(datetimestamp) * 1000)
  83 }
  84
  85 function dateToUtcString(datelocal) {
  86     return new Date(
  87         datelocal.getUTCFullYear(),
  88         datelocal.getUTCMonth(),
  89         datelocal.getUTCDate(),
  90         datelocal.getUTCHours(),
  91         datelocal.getUTCMinutes(),
  92         datelocal.getUTCSeconds()
  93     ).format();
  94 }
  95
  96 function dateToUtcTimestamp(datelocal) {
  97     return (Date.UTC(
  98         datelocal.getUTCFullYear(),
  99         datelocal.getUTCMonth(),
 100         datelocal.getUTCDate(),
 101         datelocal.getUTCHours(),
 102         datelocal.getUTCMinutes(),
 103         datelocal.getUTCSeconds()
 104     ) / 1000);
 105 }
 106
 107 function convertAllDatetimeFields() {
 108     datefields = document.getElementsByClassName('datetime')
 109     for(var i=0; i<datefields.length; i++) {
 110         dateUTC = datefields[i].getAttribute('data-datetime');
 111         datefields[i].setAttribute('title', dateUTC + ' (GMT)');
 112         datefields[i].innerHTML = dateFromUtcString(dateUTC).format('YYYY-MM-DD hh:mm (GMT O)');
 113     }
 114 }
 115
 116 function show_link (url, reference, delete_code, crypt_key, date)
 117 {
 118     // Upload finished
 119     document.getElementById('uploading').style.display = 'none';
 120     document.getElementById('upload').style.display = 'none';
 121     document.getElementById('upload_finished').style.display = '';
 122     document.title = 'Jirafeau - 100%';
 123
 124     // Download page
 125     var download_link = url + 'f.php?h=' + reference;
 126     var download_link_href = url + 'f.php?h=' + reference;
 127     if (crypt_key.length > 0)
 128     {
 129         download_link += '&amp;k=' + crypt_key;
 130         download_link_href += '&k=' + crypt_key;
 131     }
 132     if (!!document.getElementById('upload_finished_download_page'))
 133     {
 134         document.getElementById('upload_link').innerHTML = download_link;
 135         document.getElementById('upload_link').href = download_link_href;
 136     }
 137
 138     // Email link
 139     var filename = document.getElementById('file_select').files[0].name;
 140     var b = encodeURIComponent("Download file \"" + filename + "\":") + "%0D";
 141     b += encodeURIComponent(download_link_href) + "%0D";
 142     if (false == isEmpty(date))
 143     {
 144         b += "%0D" + encodeURIComponent("This file will be available until " + date.format('YYYY-MM-DD hh:mm (GMT O)')) + "%0D";
 145         document.getElementById('upload_link_email').href = "mailto:?body=" + b + "&subject=" + encodeURIComponent(filename);
 146     }
 147
 148     // Delete link
 149     var delete_link = url + 'f.php?h=' + reference + '&amp;d=' + delete_code;
 150     var delete_link_href = url + 'f.php?h=' + reference + '&d=' + delete_code;
 151     document.getElementById('delete_link').innerHTML = delete_link;
 152     document.getElementById('delete_link').href = delete_link_href;
 153
 154     // Validity date
 155     if (isEmpty(date))
 156     {
 157         document.getElementById('date').style.display = 'none';
 158     }
 159     else {
 160         document.getElementById('date').innerHTML = '<span class="datetime" title="'
 161             + dateToUtcString(date) + ' (GMT)">'
 162             + date.format('YYYY-MM-DD hh:mm (GMT O)')
 163             + '</span>';
 164         document.getElementById('date').style.display = '';
 165     }
 166
 167     // Preview link (if allowed)
 168     if (!!document.getElementById('preview_link'))
 169     {
 170         document.getElementById('upload_finished_preview').style.display = 'none';
 171         var preview_link = url + 'f.php?h=' + reference + '&amp;p=1';
 172         var preview_link_href = url + 'f.php?h=' + reference + '&p=1';
 173         if (crypt_key.length > 0)
 174         {
 175             preview_link += '&amp;k=' + crypt_key;
 176             preview_link_href += '&k=' + crypt_key;
 177         }
 178
 179         // Test if content can be previewed
 180          type = document.getElementById('file_select').files[0].type;
 181          if (type.indexOf("image") > -1 ||
 182              type.indexOf("audio") > -1 ||
 183              type.indexOf("text") > -1 ||
 184              type.indexOf("video") > -1)
 185          {
 186             document.getElementById('preview_link').innerHTML = preview_link;
 187             document.getElementById('preview_link').href = preview_link_href;
 188             document.getElementById('upload_finished_preview').style.display = '';
 189          }
 190     }
 191
 192     // Direct download link
 193     var direct_download_link = url + 'f.php?h=' + reference + '&amp;d=1';
 194     var direct_download_link_href = url + 'f.php?h=' + reference + '&d=1';
 195     if (crypt_key.length > 0)
 196     {
 197         direct_download_link += '&amp;k=' + crypt_key;
 198         direct_download_link_href += '&k=' + crypt_key;
 199     }
 200     document.getElementById('direct_link').innerHTML = direct_download_link;
 201     document.getElementById('direct_link').href = direct_download_link_href;
 202
 203
 204     // Hide preview and direct download link if password is set
 205     if (document.getElementById('input_key').value.length > 0)
 206     {
 207         if (!!document.getElementById('preview_link'))
 208             document.getElementById('upload_finished_preview').style.display = 'none';
 209         document.getElementById('upload_direct_download').style.display = 'none';
 210     }
 211 }
 212
 213 function show_upload_progression (percentage, speed, time_left)
 214 {
 215     document.getElementById('uploaded_percentage').innerHTML = percentage;
 216     document.getElementById('uploaded_speed').innerHTML = speed;
 217     document.getElementById('uploaded_time').innerHTML = time_left;
 218     document.title = 'Jirafeau - ' + percentage;
 219 }
 220
 221 function hide_upload_progression ()
 222 {
 223     document.getElementById('uploaded_percentage').style.display = 'none';
 224     document.getElementById('uploaded_speed').style.display = 'none';
 225     document.getElementById('uploaded_time').style.display = 'none';
 226     document.title = 'Jirafeau';
 227 }
 228
 229 function upload_progress (e)
 230 {
 231     if (e == undefined || e == null || !e.lengthComputable)
 232         return;
 233
 234     // Init time estimation if needed
 235     if (upload_time_estimation_total_size == 0)
 236         upload_time_estimation_total_size = e.total;
 237
 238     // Compute percentage
 239     var p = Math.round (e.loaded * 100 / e.total);
 240     var p_str = ' ';
 241     if (p != 100)
 242         p_str = p.toString() + '%';
 243     // Update estimation speed
 244     upload_time_estimation_add(e.loaded);
 245     // Get speed string
 246     var speed_str = upload_time_estimation_speed_string();
 247     speed_str = upload_speed_refresh_limiter(speed_str);
 248     // Get time string
 249     var time_str = chrono_update(upload_time_estimation_time());
 250
 251     show_upload_progression (p_str, speed_str, time_str);
 252 }
 253
 254 function control_selected_file_size(max_size, error_str)
 255 {
 256     f_size = document.getElementById('file_select').files[0].size;
 257     if (max_size > 0 && f_size > max_size * 1024 * 1024)
 258     {
 259         pop_failure(error_str);
 260         document.getElementById('send').style.display = 'none';
 261     }
 262     else
 263     {
 264         // add class to restyle upload form in next step
 265         document.getElementById('upload').setAttribute('class', 'file-selected');
 266         // display options
 267         document.getElementById('options').style.display = 'block';
 268         document.getElementById('send').style.display = 'block';
 269         document.getElementById('error_pop').style.display = 'none';
 270         document.getElementById('send').focus();
 271     }
 272 }
 273
 274 function pop_failure (e)
 275 {
 276     var text = "An error occured";
 277     if (typeof e !== 'undefined')
 278         text = e;
 279     text = "<p>" + text + "</p>";
 280     document.getElementById('error_pop').innerHTML = e;
 281
 282     document.getElementById('uploading').style.display = 'none';
 283     document.getElementById('error_pop').style.display = '';
 284     document.getElementById('upload').style.display = '';
 285     document.getElementById('send').style.display = '';
 286 }
 287
 288 function add_time_string_to_date(d, time)
 289 {
 290     if(typeof(d) != 'object' || !(d instanceof Date))
 291     {
 292         return false;
 293     }
 294
 295     if (time == 'minute')
 296     {
 297         d.setSeconds (d.getSeconds() + 60);
 298         return true;
 299     }
 300     if (time == 'hour')
 301     {
 302         d.setSeconds (d.getSeconds() + 3600);
 303         return true;
 304     }
 305     if (time == 'day')
 306     {
 307         d.setSeconds (d.getSeconds() + 86400);
 308         return true;
 309     }
 310     if (time == 'week')
 311     {
 312         d.setSeconds (d.getSeconds() + 604800);
 313         return true;
 314     }
 315     if (time == 'month')
 316     {
 317         d.setSeconds (d.getSeconds() + 2419200);
 318         return true;
 319     }
 320     if (time == 'quarter')
 321     {
 322         d.setSeconds (d.getSeconds() + 7257600);
 323         return true;
 324     }
 325     if (time == 'year')
 326     {
 327         d.setSeconds (d.getSeconds() + 29030400);
 328         return true;
 329     }
 330     return false;
 331 }
 332
 333 function classic_upload (url, file, time, password, one_time, upload_password)
 334 {
 335     // Delay time estimation init as we can't have file size
 336     upload_time_estimation_init(0);
 337
 338     var req = new XMLHttpRequest ();
 339     req.upload.addEventListener ("progress", upload_progress, false);
 340     req.addEventListener ("error", pop_failure, false);
 341     req.addEventListener ("abort", pop_failure, false);
 342     req.onreadystatechange = function ()
 343     {
 344         if (req.readyState == 4 && req.status == 200)
 345         {
 346             var res = req.responseText;
 347
 348             // if response starts with "Error" then show a failure
 349             if (/^Error/.test(res))
 350             {
 351                 pop_failure (res);
 352                 return;
 353             }
 354
 355             res = res.split ("\n");
 356             var expiryDate = '';
 357             if (time != 'none')
 358             {
 359                 // convert time (local time + selected expiry date)
 360                 var localDatetime = new Date();
 361                 if(!add_time_string_to_date(localDatetime, time))
 362                 {
 363                     pop_failure ('Error: Date can not be parsed');
 364                     return;
 365                 }
 366                 expiryDate = localDatetime;
 367             }
 368
 369             show_link (url, res[0], res[1], res[2], expiryDate);
 370         }
 371     }
 372     req.open ("POST", url + 'script.php' , true);
 373
 374     var form = new FormData();
 375     form.append ("file", file);
 376     if (time)
 377         form.append ("time", time);
 378     if (password)
 379         form.append ("key", password);
 380     if (one_time)
 381         form.append ("one_time_download", '1');
 382     if (upload_password.length > 0)
 383         form.append ("upload_password", upload_password);
 384
 385     req.send (form);
 386 }
 387
 388 function check_html5_file_api ()
 389 {
 390     return window.File && window.FileReader && window.FileList && window.Blob;
 391 }
 392
 393 var async_global_transfered = 0;
 394 var async_global_url = '';
 395 var async_global_file;
 396 var async_global_ref = '';
 397 var async_global_max_size = 0;
 398 var async_global_time;
 399 var async_global_transfering = 0;
 400
 401 function async_upload_start (url, max_size, file, time, password, one_time, upload_password)
 402 {
 403     async_global_transfered = 0;
 404     async_global_url = url;
 405     async_global_file = file;
 406     async_global_max_size = max_size;
 407     async_global_time = time;
 408
 409     var req = new XMLHttpRequest ();
 410     req.addEventListener ("error", pop_failure, false);
 411     req.addEventListener ("abort", pop_failure, false);
 412     req.onreadystatechange = function ()
 413     {
 414         if (req.readyState == 4 && req.status == 200)
 415         {
 416             var res = req.responseText;
 417
 418             if (/^Error/.test(res))
 419             {
 420                 pop_failure (res);
 421                 return;
 422             }
 423
 424             res = res.split ("\n");
 425             async_global_ref = res[0];
 426             var code = res[1];
 427             async_upload_push (code);
 428         }
 429     }
 430     req.open ("POST", async_global_url + 'script.php?init_async' , true);
 431
 432     var form = new FormData();
 433     form.append ("filename", async_global_file.name);
 434     form.append ("type", async_global_file.type);
 435     if (time)
 436         form.append ("time", time);
 437     if (password)
 438         form.append ("key", password);
 439     if (one_time)
 440         form.append ("one_time_download", '1');
 441     if (upload_password.length > 0)
 442         form.append ("upload_password", upload_password);
 443
 444     // Start time estimation
 445     upload_time_estimation_init(async_global_file.size);
 446
 447     req.send (form);
 448 }
 449
 450 function async_upload_progress (e)
 451 {
 452     if (e == undefined || e == null || !e.lengthComputable && async_global_file.size != 0)
 453         return;
 454
 455     // Compute percentage
 456     var p = Math.round ((e.loaded + async_global_transfered) * 100 / (async_global_file.size));
 457     var p_str = ' ';
 458     if (p != 100)
 459         p_str = p.toString() + '%';
 460     // Update estimation speed
 461     upload_time_estimation_add(e.loaded + async_global_transfered);
 462     // Get speed string
 463     var speed_str = upload_time_estimation_speed_string();
 464     speed_str = upload_speed_refresh_limiter(speed_str);
 465     // Get time string
 466     var time_str = chrono_update(upload_time_estimation_time());
 467
 468     show_upload_progression (p_str, speed_str, time_str);
 469 }
 470
 471 function async_upload_push (code)
 472 {
 473     if (async_global_transfered == async_global_file.size)
 474     {
 475         hide_upload_progression ();
 476         async_upload_end (code);
 477         return;
 478     }
 479     var req = new XMLHttpRequest ();
 480     req.upload.addEventListener ("progress", async_upload_progress, false);
 481     req.addEventListener ("error", pop_failure, false);
 482     req.addEventListener ("abort", pop_failure, false);
 483     req.onreadystatechange = function ()
 484     {
 485         if (req.readyState == 4 && req.status == 200)
 486         {
 487             var res = req.responseText;
 488
 489             if (/^Error/.test(res))
 490             {
 491                 pop_failure (res);
 492                 return;
 493             }
 494
 495             res = res.split ("\n");
 496             var code = res[0]
 497             async_global_transfered = async_global_transfering;
 498             async_upload_push (code);
 499         }
 500     }
 501     req.open ("POST", async_global_url + 'script.php?push_async' , true);
 502
 503     var chunk_size = parseInt (async_global_max_size * 0.50);
 504     var start = async_global_transfered;
 505     var end = start + chunk_size;
 506     if (end >= async_global_file.size)
 507         end = async_global_file.size;
 508     var blob = async_global_file.slice (start, end);
 509     async_global_transfering = end;
 510
 511     var form = new FormData();
 512     form.append ("ref", async_global_ref);
 513     form.append ("data", blob);
 514     form.append ("code", code);
 515     req.send (form);
 516 }
 517
 518 function async_upload_end (code)
 519 {
 520     var req = new XMLHttpRequest ();
 521     req.addEventListener ("error", pop_failure, false);
 522     req.addEventListener ("abort", pop_failure, false);
 523     req.onreadystatechange = function ()
 524     {
 525         if (req.readyState == 4 && req.status == 200)
 526         {
 527             var res = req.responseText;
 528
 529             if (/^Error/.test(res))
 530             {
 531                 pop_failure (res);
 532                 return;
 533             }
 534
 535             res = res.split ("\n");
 536             var expiryDate = '';
 537             if (async_global_time != 'none')
 538             {
 539               // convert time (local time + selected expiry date)
 540               var localDatetime = new Date();
 541               if(!add_time_string_to_date(localDatetime, async_global_time)) {
 542                 pop_failure ('Error: Date can not be parsed');
 543                 return;
 544               }
 545               expiryDate = localDatetime;
 546             }
 547
 548             show_link (async_global_url, res[0], res[1], res[2], expiryDate);
 549         }
 550     }
 551     req.open ("POST", async_global_url + 'script.php?end_async' , true);
 552
 553     var form = new FormData();
 554     form.append ("ref", async_global_ref);
 555     form.append ("code", code);
 556     req.send (form);
 557 }
 558
 559 function upload (url, max_size)
 560 {
 561     if (check_html5_file_api ()
 562         && document.getElementById('file_select').files[0].size >= max_size)
 563     {
 564         async_upload_start (url,
 565             max_size,
 566             document.getElementById('file_select').files[0],
 567             document.getElementById('select_time').value,
 568             document.getElementById('input_key').value,
 569             document.getElementById('one_time_download').checked,
 570             document.getElementById('upload_password').value
 571             );
 572     }
 573     else
 574     {
 575         classic_upload (url,
 576             document.getElementById('file_select').files[0],
 577             document.getElementById('select_time').value,
 578             document.getElementById('input_key').value,
 579             document.getElementById('one_time_download').checked,
 580             document.getElementById('upload_password').value
 581             );
 582     }
 583 }
 584
 585 var upload_time_estimation_total_size = 42;
 586 var upload_time_estimation_transfered_size = 42;
 587 var upload_time_estimation_transfered_date = 42;
 588 var upload_time_estimation_moving_average_speed = 42;
 589
 590 function upload_time_estimation_init(total_size)
 591 {
 592     upload_time_estimation_total_size = total_size;
 593     upload_time_estimation_transfered_size = 0;
 594     upload_time_estimation_moving_average_speed = 0;
 595     var d = new Date();
 596     upload_time_estimation_transfered_date = d.getTime();
 597 }
 598
 599 function upload_time_estimation_add(total_transfered_size)
 600 {
 601     // Let's compute the current speed
 602     var d = new Date();
 603     var speed = upload_time_estimation_moving_average_speed;
 604     if (d.getTime() - upload_time_estimation_transfered_date != 0)
 605         speed = (total_transfered_size - upload_time_estimation_transfered_size)
 606                 / (d.getTime() - upload_time_estimation_transfered_date);
 607     // Let's compute moving average speed on 30 values
 608     var m = (upload_time_estimation_moving_average_speed * 29 + speed) / 30;
 609     // Update global values
 610     upload_time_estimation_transfered_size = total_transfered_size;
 611     upload_time_estimation_transfered_date = d.getTime();
 612     upload_time_estimation_moving_average_speed = m;
 613 }
 614
 615 function upload_time_estimation_speed_string()
 616 {
 617     // speed ms -> s
 618     var s = upload_time_estimation_moving_average_speed * 1000;
 619     var res = 0;
 620     var scale = '';
 621     if (s <= 1000)
 622     {
 623         res = s.toString();
 624         scale = "o/s";
 625     }
 626     else if (s < 1000000)
 627     {
 628         res = Math.floor(s/100) / 10;
 629         scale = "Ko/s";
 630     }
 631     else
 632     {
 633         res = Math.floor(s/100000) / 10;
 634         scale = "Mo/s";
 635     }
 636     if (res == 0)
 637         return '';
 638     return res.toString() + ' ' + scale;
 639 }
 640
 641 function milliseconds_to_time_string (milliseconds)
 642 {
 643     function numberEnding (number) {
 644         return (number > 1) ? 's' : '';
 645     }
 646
 647     var temp = Math.floor(milliseconds / 1000);
 648     var years = Math.floor(temp / 31536000);
 649     if (years) {
 650         return years + ' ' + translate ('year') + numberEnding(years);
 651     }
 652     var days = Math.floor((temp %= 31536000) / 86400);
 653     if (days) {
 654         return days + ' ' + translate ('day') + numberEnding(days);
 655     }
 656     var hours = Math.floor((temp %= 86400) / 3600);
 657     if (hours) {
 658         return hours + ' ' + translate ('hour') + numberEnding(hours);
 659     }
 660     var minutes = Math.floor((temp %= 3600) / 60);
 661     if (minutes) {
 662         return minutes + ' ' + translate ('minute') + numberEnding(minutes);
 663     }
 664     var seconds = temp % 60;
 665     if (seconds) {
 666         return seconds + ' ' + translate ('second') + numberEnding(seconds);
 667     }
 668     return translate ('less than a second');
 669 }
 670
 671 function upload_time_estimation_time()
 672 {
 673     // Estimate remaining time
 674     if (upload_time_estimation_moving_average_speed == 0)
 675         return 0;
 676     return (upload_time_estimation_total_size - upload_time_estimation_transfered_size)
 677             / upload_time_estimation_moving_average_speed;
 678 }
 679
 680 var chrono_last_update = 0;
 681 var chrono_time_ms = 0;
 682 var chrono_time_ms_last_update = 0;
 683 function chrono_update(time_ms)
 684 {
 685     var d = new Date();
 686     var chrono = 0;
 687     // Don't update too often
 688     if (d.getTime() - chrono_last_update < 3000 &&
 689         chrono_time_ms_last_update > 0)
 690         chrono = chrono_time_ms;
 691     else
 692     {
 693         chrono_last_update = d.getTime();
 694         chrono_time_ms = time_ms;
 695         chrono = time_ms;
 696         chrono_time_ms_last_update = d.getTime();
 697     }
 698
 699     // Adjust chrono for smooth estimation
 700     chrono = chrono - (d.getTime() - chrono_time_ms_last_update);
 701
 702     // Let's update chronometer
 703     var time_str = '';
 704     if (chrono > 0)
 705         time_str = milliseconds_to_time_string (chrono);
 706     return time_str;
 707 }
 708
 709 var upload_speed_refresh_limiter_last_update = 0;
 710 var upload_speed_refresh_limiter_last_value = '';
 711 function upload_speed_refresh_limiter(speed_str)
 712 {
 713     var d = new Date();
 714     if (d.getTime() - upload_speed_refresh_limiter_last_update > 1500)
 715     {
 716         upload_speed_refresh_limiter_last_value = speed_str;
 717         upload_speed_refresh_limiter_last_update = d.getTime();
 718     }
 719     return upload_speed_refresh_limiter_last_value;
 720 }
 721
 722 // document.ready()
 723 document.addEventListener('DOMContentLoaded', function(event) {
 724     // Search for all datetime fields and convert the time to local timezone
 725     convertAllDatetimeFields();
 726 });