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 require (JIRAFEAU_ROOT . 'lib/config.original.php');
  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 show_link (url, reference, delete_code, crypt_key, date)
  39 {
  40     // Upload finished
  41     document.getElementById('uploading').style.display = 'none';
  42     document.getElementById('upload').style.display = 'none';
  43     document.getElementById('upload_finished').style.display = '';
  44     document.title = 'Jirafeau - 100%';
  45
  46     // Download page
  47     var download_link = url + 'f.php?h=' + reference;
  48     var download_link_href = url + 'f.php?h=' + reference;
  49     if (crypt_key.length > 0)
  50     {
  51         download_link += '&amp;k=' + crypt_key;
  52         download_link_href += '&k=' + crypt_key;
  53     }
  54     if (!!document.getElementById('upload_finished_download_page'))
  55     {
  56         document.getElementById('upload_link').innerHTML = download_link;
  57         document.getElementById('upload_link').href = download_link_href;
  58     }
  59
  60     // Email link
  61     var filename = document.getElementById('file_select').files[0].name;
  62     var b = encodeURIComponent("Download file \"" + filename + "\":") + "%0D";
  63     b += encodeURIComponent(download_link_href) + "%0D";
  64     if (date)
  65         b += "%0D" + encodeURIComponent("This file will be available until " + date) + "%0D";
  66     document.getElementById('upload_link_email').href = "mailto:?body=" + b + "&subject=" + encodeURIComponent(filename);
  67
  68     // Delete link
  69     var delete_link = url + 'f.php?h=' + reference + '&amp;d=' + delete_code;
  70     var delete_link_href = url + 'f.php?h=' + reference + '&d=' + delete_code;
  71     document.getElementById('delete_link').innerHTML = delete_link;
  72     document.getElementById('delete_link').href = delete_link_href;
  73
  74     // Validity date
  75     if (date)
  76     {
  77         document.getElementById('date').innerHTML = date;
  78         document.getElementById('validity').style.display = '';
  79     }
  80     else
  81         document.getElementById('validity').style.display = 'none';
  82
  83     // Preview link (if allowed)
  84     if (!!document.getElementById('preview_link'))
  85     {
  86         document.getElementById('upload_finished_preview').style.display = 'none';
  87         var preview_link = url + 'f.php?h=' + reference + '&amp;p=1';
  88         var preview_link_href = url + 'f.php?h=' + reference + '&p=1';
  89         if (crypt_key.length > 0)
  90         {
  91             preview_link += '&amp;k=' + crypt_key;
  92             preview_link_href += '&k=' + crypt_key;
  93         }
  94
  95         // Test if content can be previewed
  96          type = document.getElementById('file_select').files[0].type;
  97          if (type.indexOf("image") > -1 ||
  98              type.indexOf("audio") > -1 ||
  99              type.indexOf("text") > -1 ||
 100              type.indexOf("video") > -1)
 101          {
 102             document.getElementById('preview_link').innerHTML = preview_link;
 103             document.getElementById('preview_link').href = preview_link_href;
 104             document.getElementById('upload_finished_preview').style.display = '';
 105          }
 106     }
 107
 108     // Direct download link
 109     var direct_download_link = url + 'f.php?h=' + reference + '&amp;d=1';
 110     var direct_download_link_href = url + 'f.php?h=' + reference + '&d=1';
 111     if (crypt_key.length > 0)
 112     {
 113         direct_download_link += '&amp;k=' + crypt_key;
 114         direct_download_link_href += '&k=' + crypt_key;
 115     }
 116     document.getElementById('direct_link').innerHTML = direct_download_link;
 117     document.getElementById('direct_link').href = direct_download_link_href;
 118
 119
 120     // Hide preview and direct download link if password is set
 121     if (document.getElementById('input_key').value.length > 0)
 122     {
 123         if (!!document.getElementById('preview_link'))
 124             document.getElementById('upload_finished_preview').style.display = 'none';
 125         document.getElementById('upload_direct_download').style.display = 'none';
 126     }
 127 }
 128
 129 function show_upload_progression (percentage, speed, time_left)
 130 {
 131     document.getElementById('uploaded_percentage').innerHTML = percentage;
 132     document.getElementById('uploaded_speed').innerHTML = speed;
 133     document.getElementById('uploaded_time').innerHTML = time_left;
 134     document.title = 'Jirafeau - ' + percentage;
 135 }
 136
 137 function hide_upload_progression ()
 138 {
 139     document.getElementById('uploaded_percentage').style.display = 'none';
 140     document.getElementById('uploaded_speed').style.display = 'none';
 141     document.getElementById('uploaded_time').style.display = 'none';
 142     document.title = 'Jirafeau';
 143 }
 144
 145 function upload_progress (e)
 146 {
 147     if (e == undefined || e == null || !e.lengthComputable)
 148         return;
 149
 150     // Init time estimation if needed
 151     if (upload_time_estimation_total_size == 0)
 152         upload_time_estimation_total_size = e.total;
 153
 154     // Compute percentage
 155     var p = Math.round (e.loaded * 100 / e.total);
 156     var p_str = ' ';
 157     if (p != 100)
 158         p_str = p.toString() + '%';
 159     // Update estimation speed
 160     upload_time_estimation_add(e.loaded);
 161     // Get speed string
 162     var speed_str = upload_time_estimation_speed_string();
 163     speed_str = upload_speed_refresh_limiter(speed_str);
 164     // Get time string
 165     var time_str = chrono_update(upload_time_estimation_time());
 166
 167     show_upload_progression (p_str, speed_str, time_str);
 168 }
 169
 170 function control_selected_file_size(max_size, error_str)
 171 {
 172     f_size = document.getElementById('file_select').files[0].size;
 173     if (max_size > 0 && f_size > max_size * 1024 * 1024)
 174     {
 175         pop_failure(error_str);
 176         document.getElementById('send').style.display = 'none';
 177     }
 178     else
 179     {
 180         document.getElementById('options').style.display = '';
 181         document.getElementById('send').style.display = '';
 182         document.getElementById('error_pop').style.display = 'none';
 183         document.getElementById('file_select').style.left = 'inherit';
 184         document.getElementById('file_select').style.height = 'inherit';
 185         document.getElementById('file_select').style.opacity = '1';
 186     }
 187 }
 188
 189 function pop_failure (e)
 190 {
 191     var text = "An error occured";
 192     if (typeof e !== 'undefined')
 193         text = e;
 194     text = "<p>" + text + "</p>";
 195     document.getElementById('error_pop').innerHTML = e;
 196
 197     document.getElementById('uploading').style.display = 'none';
 198     document.getElementById('error_pop').style.display = '';
 199     document.getElementById('upload').style.display = '';
 200     document.getElementById('send').style.display = '';
 201 }
 202
 203 function add_time_string_to_date(d, time)
 204 {
 205     if(typeof(d) != 'object' || !(d instanceof Date))
 206     {
 207         return false;
 208     }
 209
 210     if (time == 'minute')
 211     {
 212         d.setSeconds (d.getSeconds() + 60);
 213         return true;
 214     }
 215     if (time == 'hour')
 216     {
 217         d.setSeconds (d.getSeconds() + 3600);
 218         return true;
 219     }
 220     if (time == 'day')
 221     {
 222         d.setSeconds (d.getSeconds() + 86400);
 223         return true;
 224     }
 225     if (time == 'week')
 226     {
 227         d.setSeconds (d.getSeconds() + 604800);
 228         return true;
 229     }
 230     if (time == 'month')
 231     {
 232         d.setSeconds (d.getSeconds() + 2419200);
 233         return true;
 234     }
 235     if (time == 'year')
 236     {
 237         d.setSeconds (d.getSeconds() + 29030400);
 238         return true;
 239     }
 240     return false;
 241 }
 242
 243 function classic_upload (url, file, time, password, one_time, upload_password)
 244 {
 245     // Delay time estimation init as we can't have file size
 246     upload_time_estimation_init(0);
 247
 248     var req = new XMLHttpRequest ();
 249     req.upload.addEventListener ("progress", upload_progress, false);
 250     req.addEventListener ("error", pop_failure, false);
 251     req.addEventListener ("abort", pop_failure, false);
 252     req.onreadystatechange = function ()
 253     {
 254         if (req.readyState == 4 && req.status == 200)
 255         {
 256             var res = req.responseText;
 257             if (res == "Error")
 258             {
 259                 pop_failure ();
 260                 return;
 261             }
 262             res = res.split ("\n");
 263             if (time != 'none')
 264             {
 265                 var d = new Date();
 266                 if(!add_time_string_to_date(d, time))
 267                     return;
 268                 show_link (url, res[0], res[1], res[2], d.toString());
 269             }
 270             else
 271                 show_link (url, res[0], res[1], res[2]);
 272         }
 273     }
 274     req.open ("POST", url + 'script.php' , true);
 275
 276     var form = new FormData();
 277     form.append ("file", file);
 278     if (time)
 279         form.append ("time", time);
 280     if (password)
 281         form.append ("key", password);
 282     if (one_time)
 283         form.append ("one_time_download", '1');
 284     if (upload_password.length > 0)
 285         form.append ("upload_password", upload_password);
 286
 287     req.send (form);
 288 }
 289
 290 function check_html5_file_api ()
 291 {
 292     return window.File && window.FileReader && window.FileList && window.Blob;
 293 }
 294
 295 var async_global_transfered = 0;
 296 var async_global_url = '';
 297 var async_global_file;
 298 var async_global_ref = '';
 299 var async_global_max_size = 0;
 300 var async_global_time;
 301 var async_global_transfering = 0;
 302
 303 function async_upload_start (url, max_size, file, time, password, one_time, upload_password)
 304 {
 305     async_global_transfered = 0;
 306     async_global_url = url;
 307     async_global_file = file;
 308     async_global_max_size = max_size;
 309     async_global_time = time;
 310
 311     var req = new XMLHttpRequest ();
 312     req.addEventListener ("error", pop_failure, false);
 313     req.addEventListener ("abort", pop_failure, false);
 314     req.onreadystatechange = function ()
 315     {
 316         if (req.readyState == 4 && req.status == 200)
 317         {
 318             var res = req.responseText;
 319             if (res == "Error")
 320             {
 321                 pop_failure ();
 322                 return;
 323             }
 324             res = res.split ("\n");
 325             async_global_ref = res[0];
 326             var code = res[1];
 327             async_upload_push (code);
 328         }
 329     }
 330     req.open ("POST", async_global_url + 'script.php?init_async' , true);
 331
 332     var form = new FormData();
 333     form.append ("filename", async_global_file.name);
 334     form.append ("type", async_global_file.type);
 335     if (time)
 336         form.append ("time", time);
 337     if (password)
 338         form.append ("key", password);
 339     if (one_time)
 340         form.append ("one_time_download", '1');
 341     if (upload_password.length > 0)
 342         form.append ("upload_password", upload_password);
 343
 344     // Start time estimation
 345     upload_time_estimation_init(async_global_file.size);
 346
 347     req.send (form);
 348 }
 349
 350 function async_upload_progress (e)
 351 {
 352     if (e == undefined || e == null || !e.lengthComputable && async_global_file.size != 0)
 353         return;
 354
 355     // Compute percentage
 356     var p = Math.round ((e.loaded + async_global_transfered) * 100 / (async_global_file.size));
 357     var p_str = ' ';
 358     if (p != 100)
 359         p_str = p.toString() + '%';
 360     // Update estimation speed
 361     upload_time_estimation_add(e.loaded + async_global_transfered);
 362     // Get speed string
 363     var speed_str = upload_time_estimation_speed_string();
 364     speed_str = upload_speed_refresh_limiter(speed_str);
 365     // Get time string
 366     var time_str = chrono_update(upload_time_estimation_time());
 367
 368     show_upload_progression (p_str, speed_str, time_str);
 369 }
 370
 371 function async_upload_push (code)
 372 {
 373     if (async_global_transfered == async_global_file.size)
 374     {
 375         hide_upload_progression ();
 376         async_upload_end (code);
 377         return;
 378     }
 379     var req = new XMLHttpRequest ();
 380     req.upload.addEventListener ("progress", async_upload_progress, false);
 381     req.addEventListener ("error", pop_failure, false);
 382     req.addEventListener ("abort", pop_failure, false);
 383     req.onreadystatechange = function ()
 384     {
 385         if (req.readyState == 4 && req.status == 200)
 386         {
 387             var res = req.responseText;
 388             if (res == "Error")
 389             {
 390                 pop_failure ();
 391                 return;
 392             }
 393             res = res.split ("\n");
 394             var code = res[0]
 395             async_global_transfered = async_global_transfering;
 396             async_upload_push (code);
 397         }
 398     }
 399     req.open ("POST", async_global_url + 'script.php?push_async' , true);
 400
 401     var chunk_size = parseInt (async_global_max_size * 0.50);
 402     var start = async_global_transfered;
 403     var end = start + chunk_size;
 404     if (end >= async_global_file.size)
 405         end = async_global_file.size;
 406     var blob = async_global_file.slice (start, end);
 407     async_global_transfering = end;
 408
 409     var form = new FormData();
 410     form.append ("ref", async_global_ref);
 411     form.append ("data", blob);
 412     form.append ("code", code);
 413     req.send (form);
 414 }
 415
 416 function async_upload_end (code)
 417 {
 418     var req = new XMLHttpRequest ();
 419     req.addEventListener ("error", pop_failure, false);
 420     req.addEventListener ("abort", pop_failure, false);
 421     req.onreadystatechange = function ()
 422     {
 423         if (req.readyState == 4 && req.status == 200)
 424         {
 425             var res = req.responseText;
 426             if (res == "Error")
 427             {
 428                 pop_failure ();
 429                 return;
 430             }
 431             res = res.split ("\n");
 432             if (async_global_time != 'none')
 433             {
 434                 var d = new Date();
 435                 if(!add_time_string_to_date(d, async_global_time))
 436                     return;
 437                 show_link (async_global_url, res[0], res[1], res[2], d.toString());
 438             }
 439             else
 440                 show_link (async_global_url, res[0], res[1], res[2]);
 441         }
 442     }
 443     req.open ("POST", async_global_url + 'script.php?end_async' , true);
 444
 445     var form = new FormData();
 446     form.append ("ref", async_global_ref);
 447     form.append ("code", code);
 448     req.send (form);
 449 }
 450
 451 function upload (url, max_size)
 452 {
 453     if (check_html5_file_api ()
 454         && document.getElementById('file_select').files[0].size >= max_size)
 455     {
 456         async_upload_start (url,
 457             max_size,
 458             document.getElementById('file_select').files[0],
 459             document.getElementById('select_time').value,
 460             document.getElementById('input_key').value,
 461             document.getElementById('one_time_download').checked,
 462             document.getElementById('upload_password').value
 463             );
 464     }
 465     else
 466     {
 467         classic_upload (url,
 468             document.getElementById('file_select').files[0],
 469             document.getElementById('select_time').value,
 470             document.getElementById('input_key').value,
 471             document.getElementById('one_time_download').checked,
 472             document.getElementById('upload_password').value
 473             );
 474     }
 475 }
 476
 477 var upload_time_estimation_total_size = 42;
 478 var upload_time_estimation_transfered_size = 42;
 479 var upload_time_estimation_transfered_date = 42;
 480 var upload_time_estimation_moving_average_speed = 42;
 481
 482 function upload_time_estimation_init(total_size)
 483 {
 484     upload_time_estimation_total_size = total_size;
 485     upload_time_estimation_transfered_size = 0;
 486     upload_time_estimation_moving_average_speed = 0;
 487     var d = new Date();
 488     upload_time_estimation_transfered_date = d.getTime();
 489 }
 490
 491 function upload_time_estimation_add(total_transfered_size)
 492 {
 493     // Let's compute the current speed
 494     var d = new Date();
 495     var speed = upload_time_estimation_moving_average_speed;
 496     if (d.getTime() - upload_time_estimation_transfered_date != 0)
 497         speed = (total_transfered_size - upload_time_estimation_transfered_size)
 498                 / (d.getTime() - upload_time_estimation_transfered_date);
 499     // Let's compute moving average speed on 30 values
 500     var m = (upload_time_estimation_moving_average_speed * 29 + speed) / 30;
 501     // Update global values
 502     upload_time_estimation_transfered_size = total_transfered_size;
 503     upload_time_estimation_transfered_date = d.getTime();
 504     upload_time_estimation_moving_average_speed = m;
 505 }
 506
 507 function upload_time_estimation_speed_string()
 508 {
 509     // speed ms -> s
 510     var s = upload_time_estimation_moving_average_speed * 1000;
 511     var res = 0;
 512     var scale = '';
 513     if (s <= 1000)
 514     {
 515         res = s.toString();
 516         scale = "o/s";
 517     }
 518     else if (s < 1000000)
 519     {
 520         res = Math.floor(s/100) / 10;
 521         scale = "Ko/s";
 522     }
 523     else
 524     {
 525         res = Math.floor(s/100000) / 10;
 526         scale = "Mo/s";
 527     }
 528     if (res == 0)
 529         return '';
 530     return res.toString() + ' ' + scale;
 531 }
 532
 533 function milliseconds_to_time_string (milliseconds)
 534 {
 535     function numberEnding (number) {
 536         return (number > 1) ? 's' : '';
 537     }
 538
 539     var temp = Math.floor(milliseconds / 1000);
 540     var years = Math.floor(temp / 31536000);
 541     if (years) {
 542         return years + ' ' + translate ('year') + numberEnding(years);
 543     }
 544     var days = Math.floor((temp %= 31536000) / 86400);
 545     if (days) {
 546         return days + ' ' + translate ('day') + numberEnding(days);
 547     }
 548     var hours = Math.floor((temp %= 86400) / 3600);
 549     if (hours) {
 550         return hours + ' ' + translate ('hour') + numberEnding(hours);
 551     }
 552     var minutes = Math.floor((temp %= 3600) / 60);
 553     if (minutes) {
 554         return minutes + ' ' + translate ('minute') + numberEnding(minutes);
 555     }
 556     var seconds = temp % 60;
 557     if (seconds) {
 558         return seconds + ' ' + translate ('second') + numberEnding(seconds);
 559     }
 560     return translate ('less than a second');
 561 }
 562
 563 function upload_time_estimation_time()
 564 {
 565     // Estimate remaining time
 566     if (upload_time_estimation_moving_average_speed == 0)
 567         return 0;
 568     return (upload_time_estimation_total_size - upload_time_estimation_transfered_size)
 569             / upload_time_estimation_moving_average_speed;
 570 }
 571
 572 var chrono_last_update = 0;
 573 var chrono_time_ms = 0;
 574 var chrono_time_ms_last_update = 0;
 575 function chrono_update(time_ms)
 576 {
 577     var d = new Date();
 578     var chrono = 0;
 579     // Don't update too often
 580     if (d.getTime() - chrono_last_update < 3000 &&
 581         chrono_time_ms_last_update > 0)
 582         chrono = chrono_time_ms;
 583     else
 584     {
 585         chrono_last_update = d.getTime();
 586         chrono_time_ms = time_ms;
 587         chrono = time_ms;
 588         chrono_time_ms_last_update = d.getTime();
 589     }
 590
 591     // Adjust chrono for smooth estimation
 592     chrono = chrono - (d.getTime() - chrono_time_ms_last_update);
 593
 594     // Let's update chronometer
 595     var time_str = '';
 596     if (chrono > 0)
 597         time_str = milliseconds_to_time_string (chrono);
 598     return time_str;
 599 }
 600
 601 var upload_speed_refresh_limiter_last_update = 0;
 602 var upload_speed_refresh_limiter_last_value = '';
 603 function upload_speed_refresh_limiter(speed_str)
 604 {
 605     var d = new Date();
 606     if (d.getTime() - upload_speed_refresh_limiter_last_update > 1500)
 607     {
 608         upload_speed_refresh_limiter_last_value = speed_str;
 609         upload_speed_refresh_limiter_last_update = d.getTime();
 610     }
 611     return upload_speed_refresh_limiter_last_value;
 612 }