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 header('Content-Type: text/javascript');
  21 define ('JIRAFEAU_ROOT', dirname (__FILE__) . '/../');
  22 require (JIRAFEAU_ROOT . 'lib/config.original.php');
  23 require (JIRAFEAU_ROOT . 'lib/settings.php');
  24 require (JIRAFEAU_ROOT . 'lib/functions.php');
  25 require (JIRAFEAU_ROOT . 'lib/lang.php');
  26 ?>
  27
  28 function translate (expr)
  29 {
  30     var lang_array = <?php echo json_lang_generator () ?>;
  31     if (lang_array.hasOwnProperty(expr))
  32         return lang_array[expr];
  33     return expr;
  34 }
  35
  36 function show_link (url, reference, delete_code, crypt_key, date)
  37 {
  38     // Upload finished
  39     document.getElementById('uploading').style.display = 'none';
  40     document.getElementById('upload').style.display = 'none';
  41     document.getElementById('upload_finished').style.display = '';
  42     document.title = 'Jirafeau - 100%';
  43
  44     // Download page
  45     var download_link = url + 'f.php?h=' + reference;
  46     var download_link_href = url + 'f.php?h=' + reference;
  47     if (crypt_key.length > 0)
  48     {
  49         download_link += '&amp;k=' + crypt_key;
  50         download_link_href += '&k=' + crypt_key;
  51     }
  52     if (!!document.getElementById('upload_finished_download_page'))
  53     {
  54         document.getElementById('upload_link').innerHTML = download_link;
  55         document.getElementById('upload_link').href = download_link_href;
  56     }
  57
  58     // Email link
  59     var filename = document.getElementById('file_select').files[0].name;
  60     var b = encodeURIComponent("Download file \"" + filename + "\":") + "%0D";
  61     b += encodeURIComponent(download_link_href) + "%0D";
  62     if (date)
  63         b += "%0D" + encodeURIComponent("This file will be available until " + date) + "%0D";
  64     document.getElementById('upload_link_email').href = "mailto:?body=" + b + "&subject=" + encodeURIComponent(filename);
  65
  66     // Delete link
  67     var delete_link = url + 'f.php?h=' + reference + '&amp;d=' + delete_code;
  68     var delete_link_href = url + 'f.php?h=' + reference + '&d=' + delete_code;
  69     document.getElementById('delete_link').innerHTML = delete_link;
  70     document.getElementById('delete_link').href = delete_link_href;
  71
  72     // Validity date
  73     if (date)
  74     {
  75         document.getElementById('date').innerHTML = date;
  76         document.getElementById('validity').style.display = '';
  77     }
  78     else
  79         document.getElementById('validity').style.display = 'none';
  80
  81     // Preview link (if allowed)
  82     if (!!document.getElementById('preview_link'))
  83     {
  84         document.getElementById('upload_finished_preview').style.display = 'none';
  85         var preview_link = url + 'f.php?h=' + reference + '&amp;p=1';
  86         var preview_link_href = url + 'f.php?h=' + reference + '&p=1';
  87         if (crypt_key.length > 0)
  88         {
  89             preview_link += '&amp;k=' + crypt_key;
  90             preview_link_href += '&k=' + crypt_key;
  91         }
  92
  93         // Test if content can be previewed
  94          type = document.getElementById('file_select').files[0].type;
  95          if (type.indexOf("image") > -1 ||
  96              type.indexOf("audio") > -1 ||
  97              type.indexOf("text") > -1 ||
  98              type.indexOf("video") > -1)
  99          {
 100             document.getElementById('preview_link').innerHTML = preview_link;
 101             document.getElementById('preview_link').href = preview_link_href;
 102             document.getElementById('upload_finished_preview').style.display = '';
 103          }
 104     }
 105
 106     // Direct download link
 107     var direct_download_link = url + 'f.php?h=' + reference + '&amp;d=1';
 108     var direct_download_link_href = url + 'f.php?h=' + reference + '&d=1';
 109     if (crypt_key.length > 0)
 110     {
 111         direct_download_link += '&amp;k=' + crypt_key;
 112         direct_download_link_href += '&k=' + crypt_key;
 113     }
 114     document.getElementById('direct_link').innerHTML = direct_download_link;
 115     document.getElementById('direct_link').href = direct_download_link_href;
 116
 117
 118     // Hide preview and direct download link if password is set
 119     if (document.getElementById('input_key').value.length > 0)
 120     {
 121         if (!!document.getElementById('preview_link'))
 122             document.getElementById('upload_finished_preview').style.display = 'none';
 123         document.getElementById('upload_direct_download').style.display = 'none';
 124     }
 125 }
 126
 127 function show_upload_progression (percentage, speed, time_left)
 128 {
 129     document.getElementById('uploaded_percentage').innerHTML = percentage;
 130     document.getElementById('uploaded_speed').innerHTML = speed;
 131     document.getElementById('uploaded_time').innerHTML = time_left;
 132     document.title = 'Jirafeau - ' + percentage;
 133 }
 134
 135 function hide_upload_progression ()
 136 {
 137     document.getElementById('uploaded_percentage').style.display = 'none';
 138     document.getElementById('uploaded_speed').style.display = 'none';
 139     document.getElementById('uploaded_time').style.display = 'none';
 140     document.title = 'Jirafeau';
 141 }
 142
 143 function upload_progress (e)
 144 {
 145     if (e == undefined || e == null || !e.lengthComputable)
 146         return;
 147
 148     // Init time estimation if needed
 149     if (upload_time_estimation_total_size == 0)
 150         upload_time_estimation_total_size = e.total;
 151
 152     // Compute percentage
 153     var p = Math.round (e.loaded * 100 / e.total);
 154     var p_str = ' ';
 155     if (p != 100)
 156         p_str = p.toString() + '%';
 157     // Update estimation speed
 158     upload_time_estimation_add(e.loaded);
 159     // Get speed string
 160     var speed_str = upload_time_estimation_speed_string();
 161     speed_str = upload_speed_refresh_limiter(speed_str);
 162     // Get time string
 163     var time_str = chrono_update(upload_time_estimation_time());
 164
 165     show_upload_progression (p_str, speed_str, time_str);
 166 }
 167
 168 function control_selected_file_size(max_size, error_str)
 169 {
 170     f_size = document.getElementById('file_select').files[0].size;
 171     if (max_size > 0 && f_size > max_size * 1024 * 1024)
 172     {
 173         pop_failure(error_str);
 174         document.getElementById('send').style.display = 'none';
 175     }
 176     else
 177     {
 178         document.getElementById('options').style.display = '';
 179         document.getElementById('send').style.display = '';
 180         document.getElementById('error_pop').style.display = 'none';
 181         document.getElementById('file_select').style.left = 'inherit';
 182         document.getElementById('file_select').style.height = 'inherit';
 183         document.getElementById('file_select').style.opacity = '1';
 184     }
 185 }
 186
 187 function pop_failure (e)
 188 {
 189     var text = "An error occured";
 190     if (typeof e !== 'undefined')
 191         text = e;
 192     text = "<p>" + text + "</p>";
 193     document.getElementById('error_pop').innerHTML = e;
 194
 195     document.getElementById('uploading').style.display = 'none';
 196     document.getElementById('error_pop').style.display = '';
 197     document.getElementById('upload').style.display = '';
 198     document.getElementById('send').style.display = '';
 199 }
 200
 201 function add_time_string_to_date(d, time)
 202 {
 203     if(typeof(d) != 'object' || !(d instanceof Date))
 204     {
 205         return false;
 206     }
 207
 208     if (time == 'minute')
 209     {
 210         d.setSeconds (d.getSeconds() + 60);
 211         return true;
 212     }
 213     if (time == 'hour')
 214     {
 215         d.setSeconds (d.getSeconds() + 3600);
 216         return true;
 217     }
 218     if (time == 'day')
 219     {
 220         d.setSeconds (d.getSeconds() + 86400);
 221         return true;
 222     }
 223     if (time == 'week')
 224     {
 225         d.setSeconds (d.getSeconds() + 604800);
 226         return true;
 227     }
 228     if (time == 'month')
 229     {
 230         d.setSeconds (d.getSeconds() + 2419200);
 231         return true;
 232     }
 233     if (time == 'year')
 234     {
 235         d.setSeconds (d.getSeconds() + 29030400);
 236         return true;
 237     }
 238     return false;
 239 }
 240
 241 function classic_upload (url, file, time, password, one_time, upload_password)
 242 {
 243     // Delay time estimation init as we can't have file size
 244     upload_time_estimation_init(0);
 245
 246     var req = new XMLHttpRequest ();
 247     req.upload.addEventListener ("progress", upload_progress, false);
 248     req.addEventListener ("error", pop_failure, false);
 249     req.addEventListener ("abort", pop_failure, false);
 250     req.onreadystatechange = function ()
 251     {
 252         if (req.readyState == 4 && req.status == 200)
 253         {
 254             var res = req.responseText;
 255             if (res == "Error")
 256             {
 257                 pop_failure ();
 258                 return;
 259             }
 260             res = res.split ("\n");
 261             if (time != 'none')
 262             {
 263                 var d = new Date();
 264                 if(!add_time_string_to_date(d, time))
 265                     return;
 266                 show_link (url, res[0], res[1], res[2], d.toString());
 267             }
 268             else
 269                 show_link (url, res[0], res[1], res[2]);
 270         }
 271     }
 272     req.open ("POST", url + 'script.php' , true);
 273
 274     var form = new FormData();
 275     form.append ("file", file);
 276     if (time)
 277         form.append ("time", time);
 278     if (password)
 279         form.append ("key", password);
 280     if (one_time)
 281         form.append ("one_time_download", '1');
 282     if (upload_password.length > 0)
 283         form.append ("upload_password", upload_password);
 284
 285     req.send (form);
 286 }
 287
 288 function check_html5_file_api ()
 289 {
 290     return window.File && window.FileReader && window.FileList && window.Blob;
 291 }
 292
 293 var async_global_transfered = 0;
 294 var async_global_url = '';
 295 var async_global_file;
 296 var async_global_ref = '';
 297 var async_global_max_size = 0;
 298 var async_global_time;
 299 var async_global_transfering = 0;
 300
 301 function async_upload_start (url, max_size, file, time, password, one_time, upload_password)
 302 {
 303     async_global_transfered = 0;
 304     async_global_url = url;
 305     async_global_file = file;
 306     async_global_max_size = max_size;
 307     async_global_time = time;
 308
 309     var req = new XMLHttpRequest ();
 310     req.addEventListener ("error", pop_failure, false);
 311     req.addEventListener ("abort", pop_failure, false);
 312     req.onreadystatechange = function ()
 313     {
 314         if (req.readyState == 4 && req.status == 200)
 315         {
 316             var res = req.responseText;
 317             if (res == "Error")
 318             {
 319                 pop_failure ();
 320                 return;
 321             }
 322             res = res.split ("\n");
 323             async_global_ref = res[0];
 324             var code = res[1];
 325             async_upload_push (code);
 326         }
 327     }
 328     req.open ("POST", async_global_url + 'script.php?init_async' , true);
 329
 330     var form = new FormData();
 331     form.append ("filename", async_global_file.name);
 332     form.append ("type", async_global_file.type);
 333     if (time)
 334         form.append ("time", time);
 335     if (password)
 336         form.append ("key", password);
 337     if (one_time)
 338         form.append ("one_time_download", '1');
 339     if (upload_password.length > 0)
 340         form.append ("upload_password", upload_password);
 341
 342     // Start time estimation
 343     upload_time_estimation_init(async_global_file.size);
 344
 345     req.send (form);
 346 }
 347
 348 function async_upload_progress (e)
 349 {
 350     if (e == undefined || e == null || !e.lengthComputable && async_global_file.size != 0)
 351         return;
 352
 353     // Compute percentage
 354     var p = Math.round ((e.loaded + async_global_transfered) * 100 / (async_global_file.size));
 355     var p_str = ' ';
 356     if (p != 100)
 357         p_str = p.toString() + '%';
 358     // Update estimation speed
 359     upload_time_estimation_add(e.loaded + async_global_transfered);
 360     // Get speed string
 361     var speed_str = upload_time_estimation_speed_string();
 362     speed_str = upload_speed_refresh_limiter(speed_str);
 363     // Get time string
 364     var time_str = chrono_update(upload_time_estimation_time());
 365
 366     show_upload_progression (p_str, speed_str, time_str);
 367 }
 368
 369 function async_upload_push (code)
 370 {
 371     if (async_global_transfered == async_global_file.size)
 372     {
 373         hide_upload_progression ();
 374         async_upload_end (code);
 375         return;
 376     }
 377     var req = new XMLHttpRequest ();
 378     req.upload.addEventListener ("progress", async_upload_progress, false);
 379     req.addEventListener ("error", pop_failure, false);
 380     req.addEventListener ("abort", pop_failure, false);
 381     req.onreadystatechange = function ()
 382     {
 383         if (req.readyState == 4 && req.status == 200)
 384         {
 385             var res = req.responseText;
 386             if (res == "Error")
 387             {
 388                 pop_failure ();
 389                 return;
 390             }
 391             res = res.split ("\n");
 392             var code = res[0]
 393             async_global_transfered = async_global_transfering;
 394             async_upload_push (code);
 395         }
 396     }
 397     req.open ("POST", async_global_url + 'script.php?push_async' , true);
 398
 399     var chunk_size = parseInt (async_global_max_size * 0.50);
 400     var start = async_global_transfered;
 401     var end = start + chunk_size;
 402     if (end >= async_global_file.size)
 403         end = async_global_file.size;
 404     var blob = async_global_file.slice (start, end);
 405     async_global_transfering = end;
 406
 407     var form = new FormData();
 408     form.append ("ref", async_global_ref);
 409     form.append ("data", blob);
 410     form.append ("code", code);
 411     req.send (form);
 412 }
 413
 414 function async_upload_end (code)
 415 {
 416     var req = new XMLHttpRequest ();
 417     req.addEventListener ("error", pop_failure, false);
 418     req.addEventListener ("abort", pop_failure, false);
 419     req.onreadystatechange = function ()
 420     {
 421         if (req.readyState == 4 && req.status == 200)
 422         {
 423             var res = req.responseText;
 424             if (res == "Error")
 425             {
 426                 pop_failure ();
 427                 return;
 428             }
 429             res = res.split ("\n");
 430             if (async_global_time != 'none')
 431             {
 432                 var d = new Date();
 433                 if(!add_time_string_to_date(d, async_global_time))
 434                     return;
 435                 show_link (async_global_url, res[0], res[1], res[2], d.toString());
 436             }
 437             else
 438                 show_link (async_global_url, res[0], res[1], res[2]);
 439         }
 440     }
 441     req.open ("POST", async_global_url + 'script.php?end_async' , true);
 442
 443     var form = new FormData();
 444     form.append ("ref", async_global_ref);
 445     form.append ("code", code);
 446     req.send (form);
 447 }
 448
 449 function upload (url, max_size)
 450 {
 451     if (check_html5_file_api ()
 452         && document.getElementById('file_select').files[0].size >= max_size)
 453     {
 454         async_upload_start (url,
 455             max_size,
 456             document.getElementById('file_select').files[0],
 457             document.getElementById('select_time').value,
 458             document.getElementById('input_key').value,
 459             document.getElementById('one_time_download').checked,
 460             document.getElementById('upload_password').value
 461             );
 462     }
 463     else
 464     {
 465         classic_upload (url,
 466             document.getElementById('file_select').files[0],
 467             document.getElementById('select_time').value,
 468             document.getElementById('input_key').value,
 469             document.getElementById('one_time_download').checked,
 470             document.getElementById('upload_password').value
 471             );
 472     }
 473 }
 474
 475 var upload_time_estimation_total_size = 42;
 476 var upload_time_estimation_transfered_size = 42;
 477 var upload_time_estimation_transfered_date = 42;
 478 var upload_time_estimation_moving_average_speed = 42;
 479
 480 function upload_time_estimation_init(total_size)
 481 {
 482     upload_time_estimation_total_size = total_size;
 483     upload_time_estimation_transfered_size = 0;
 484     upload_time_estimation_moving_average_speed = 0;
 485     var d = new Date();
 486     upload_time_estimation_transfered_date = d.getTime();
 487 }
 488
 489 function upload_time_estimation_add(total_transfered_size)
 490 {
 491     // Let's compute the current speed
 492     var d = new Date();
 493     var speed = upload_time_estimation_moving_average_speed;
 494     if (d.getTime() - upload_time_estimation_transfered_date != 0)
 495         speed = (total_transfered_size - upload_time_estimation_transfered_size)
 496                 / (d.getTime() - upload_time_estimation_transfered_date);
 497     // Let's compute moving average speed on 30 values
 498     var m = (upload_time_estimation_moving_average_speed * 29 + speed) / 30;
 499     // Update global values
 500     upload_time_estimation_transfered_size = total_transfered_size;
 501     upload_time_estimation_transfered_date = d.getTime();
 502     upload_time_estimation_moving_average_speed = m;
 503 }
 504
 505 function upload_time_estimation_speed_string()
 506 {
 507     // speed ms -> s
 508     var s = upload_time_estimation_moving_average_speed * 1000;
 509     var res = 0;
 510     var scale = '';
 511     if (s <= 1000)
 512     {
 513         res = s.toString();
 514         scale = "o/s";
 515     }
 516     else if (s < 1000000)
 517     {
 518         res = Math.floor(s/100) / 10;
 519         scale = "Ko/s";
 520     }
 521     else
 522     {
 523         res = Math.floor(s/100000) / 10;
 524         scale = "Mo/s";
 525     }
 526     if (res == 0)
 527         return '';
 528     return res.toString() + ' ' + scale;
 529 }
 530
 531 function milliseconds_to_time_string (milliseconds)
 532 {
 533     function numberEnding (number) {
 534         return (number > 1) ? 's' : '';
 535     }
 536
 537     var temp = Math.floor(milliseconds / 1000);
 538     var years = Math.floor(temp / 31536000);
 539     if (years) {
 540         return years + ' ' + translate ('year') + numberEnding(years);
 541     }
 542     var days = Math.floor((temp %= 31536000) / 86400);
 543     if (days) {
 544         return days + ' ' + translate ('day') + numberEnding(days);
 545     }
 546     var hours = Math.floor((temp %= 86400) / 3600);
 547     if (hours) {
 548         return hours + ' ' + translate ('hour') + numberEnding(hours);
 549     }
 550     var minutes = Math.floor((temp %= 3600) / 60);
 551     if (minutes) {
 552         return minutes + ' ' + translate ('minute') + numberEnding(minutes);
 553     }
 554     var seconds = temp % 60;
 555     if (seconds) {
 556         return seconds + ' ' + translate ('second') + numberEnding(seconds);
 557     }
 558     return translate ('less than a second');
 559 }
 560
 561 function upload_time_estimation_time()
 562 {
 563     // Estimate remaining time
 564     if (upload_time_estimation_moving_average_speed == 0)
 565         return 0;
 566     return (upload_time_estimation_total_size - upload_time_estimation_transfered_size)
 567             / upload_time_estimation_moving_average_speed;
 568 }
 569
 570 var chrono_last_update = 0;
 571 var chrono_time_ms = 0;
 572 var chrono_time_ms_last_update = 0;
 573 function chrono_update(time_ms)
 574 {
 575     var d = new Date();
 576     var chrono = 0;
 577     // Don't update too often
 578     if (d.getTime() - chrono_last_update < 3000 &&
 579         chrono_time_ms_last_update > 0)
 580         chrono = chrono_time_ms;
 581     else
 582     {
 583         chrono_last_update = d.getTime();
 584         chrono_time_ms = time_ms;
 585         chrono = time_ms;
 586         chrono_time_ms_last_update = d.getTime();
 587     }
 588
 589     // Adjust chrono for smooth estimation
 590     chrono = chrono - (d.getTime() - chrono_time_ms_last_update);
 591
 592     // Let's update chronometer
 593     var time_str = '';
 594     if (chrono > 0)
 595         time_str = milliseconds_to_time_string (chrono);
 596     return time_str;
 597 }
 598
 599 var upload_speed_refresh_limiter_last_update = 0;
 600 var upload_speed_refresh_limiter_last_value = '';
 601 function upload_speed_refresh_limiter(speed_str)
 602 {
 603     var d = new Date();
 604     if (d.getTime() - upload_speed_refresh_limiter_last_update > 1500)
 605     {
 606         upload_speed_refresh_limiter_last_value = speed_str;
 607         upload_speed_refresh_limiter_last_update = d.getTime();
 608     }
 609     return upload_speed_refresh_limiter_last_value;
 610 }