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 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 == 'quarter')
 236     {
 237         d.setSeconds (d.getSeconds() + 7257600);
 238         return true;
 239     }
 240     if (time == 'year')
 241     {
 242         d.setSeconds (d.getSeconds() + 29030400);
 243         return true;
 244     }
 245     return false;
 246 }
 247
 248 function classic_upload (url, file, time, password, one_time, upload_password)
 249 {
 250     // Delay time estimation init as we can't have file size
 251     upload_time_estimation_init(0);
 252
 253     var req = new XMLHttpRequest ();
 254     req.upload.addEventListener ("progress", upload_progress, false);
 255     req.addEventListener ("error", pop_failure, false);
 256     req.addEventListener ("abort", pop_failure, false);
 257     req.onreadystatechange = function ()
 258     {
 259         if (req.readyState == 4 && req.status == 200)
 260         {
 261             var res = req.responseText;
 262             if (res == "Error")
 263             {
 264                 pop_failure ();
 265                 return;
 266             }
 267             res = res.split ("\n");
 268             if (time != 'none')
 269             {
 270                 var d = new Date();
 271                 if(!add_time_string_to_date(d, time))
 272                     return;
 273                 show_link (url, res[0], res[1], res[2], d.toString());
 274             }
 275             else
 276                 show_link (url, res[0], res[1], res[2]);
 277         }
 278     }
 279     req.open ("POST", url + 'script.php' , true);
 280
 281     var form = new FormData();
 282     form.append ("file", file);
 283     if (time)
 284         form.append ("time", time);
 285     if (password)
 286         form.append ("key", password);
 287     if (one_time)
 288         form.append ("one_time_download", '1');
 289     if (upload_password.length > 0)
 290         form.append ("upload_password", upload_password);
 291
 292     req.send (form);
 293 }
 294
 295 function check_html5_file_api ()
 296 {
 297     return window.File && window.FileReader && window.FileList && window.Blob;
 298 }
 299
 300 var async_global_transfered = 0;
 301 var async_global_url = '';
 302 var async_global_file;
 303 var async_global_ref = '';
 304 var async_global_max_size = 0;
 305 var async_global_time;
 306 var async_global_transfering = 0;
 307
 308 function async_upload_start (url, max_size, file, time, password, one_time, upload_password)
 309 {
 310     async_global_transfered = 0;
 311     async_global_url = url;
 312     async_global_file = file;
 313     async_global_max_size = max_size;
 314     async_global_time = time;
 315
 316     var req = new XMLHttpRequest ();
 317     req.addEventListener ("error", pop_failure, false);
 318     req.addEventListener ("abort", pop_failure, false);
 319     req.onreadystatechange = function ()
 320     {
 321         if (req.readyState == 4 && req.status == 200)
 322         {
 323             var res = req.responseText;
 324             if (res == "Error")
 325             {
 326                 pop_failure ();
 327                 return;
 328             }
 329             res = res.split ("\n");
 330             async_global_ref = res[0];
 331             var code = res[1];
 332             async_upload_push (code);
 333         }
 334     }
 335     req.open ("POST", async_global_url + 'script.php?init_async' , true);
 336
 337     var form = new FormData();
 338     form.append ("filename", async_global_file.name);
 339     form.append ("type", async_global_file.type);
 340     if (time)
 341         form.append ("time", time);
 342     if (password)
 343         form.append ("key", password);
 344     if (one_time)
 345         form.append ("one_time_download", '1');
 346     if (upload_password.length > 0)
 347         form.append ("upload_password", upload_password);
 348
 349     // Start time estimation
 350     upload_time_estimation_init(async_global_file.size);
 351
 352     req.send (form);
 353 }
 354
 355 function async_upload_progress (e)
 356 {
 357     if (e == undefined || e == null || !e.lengthComputable && async_global_file.size != 0)
 358         return;
 359
 360     // Compute percentage
 361     var p = Math.round ((e.loaded + async_global_transfered) * 100 / (async_global_file.size));
 362     var p_str = ' ';
 363     if (p != 100)
 364         p_str = p.toString() + '%';
 365     // Update estimation speed
 366     upload_time_estimation_add(e.loaded + async_global_transfered);
 367     // Get speed string
 368     var speed_str = upload_time_estimation_speed_string();
 369     speed_str = upload_speed_refresh_limiter(speed_str);
 370     // Get time string
 371     var time_str = chrono_update(upload_time_estimation_time());
 372
 373     show_upload_progression (p_str, speed_str, time_str);
 374 }
 375
 376 function async_upload_push (code)
 377 {
 378     if (async_global_transfered == async_global_file.size)
 379     {
 380         hide_upload_progression ();
 381         async_upload_end (code);
 382         return;
 383     }
 384     var req = new XMLHttpRequest ();
 385     req.upload.addEventListener ("progress", async_upload_progress, false);
 386     req.addEventListener ("error", pop_failure, false);
 387     req.addEventListener ("abort", pop_failure, false);
 388     req.onreadystatechange = function ()
 389     {
 390         if (req.readyState == 4 && req.status == 200)
 391         {
 392             var res = req.responseText;
 393             if (res == "Error")
 394             {
 395                 pop_failure ();
 396                 return;
 397             }
 398             res = res.split ("\n");
 399             var code = res[0]
 400             async_global_transfered = async_global_transfering;
 401             async_upload_push (code);
 402         }
 403     }
 404     req.open ("POST", async_global_url + 'script.php?push_async' , true);
 405
 406     var chunk_size = parseInt (async_global_max_size * 0.50);
 407     var start = async_global_transfered;
 408     var end = start + chunk_size;
 409     if (end >= async_global_file.size)
 410         end = async_global_file.size;
 411     var blob = async_global_file.slice (start, end);
 412     async_global_transfering = end;
 413
 414     var form = new FormData();
 415     form.append ("ref", async_global_ref);
 416     form.append ("data", blob);
 417     form.append ("code", code);
 418     req.send (form);
 419 }
 420
 421 function async_upload_end (code)
 422 {
 423     var req = new XMLHttpRequest ();
 424     req.addEventListener ("error", pop_failure, false);
 425     req.addEventListener ("abort", pop_failure, false);
 426     req.onreadystatechange = function ()
 427     {
 428         if (req.readyState == 4 && req.status == 200)
 429         {
 430             var res = req.responseText;
 431             if (res == "Error")
 432             {
 433                 pop_failure ();
 434                 return;
 435             }
 436             res = res.split ("\n");
 437             if (async_global_time != 'none')
 438             {
 439                 var d = new Date();
 440                 if(!add_time_string_to_date(d, async_global_time))
 441                     return;
 442                 show_link (async_global_url, res[0], res[1], res[2], d.toString());
 443             }
 444             else
 445                 show_link (async_global_url, res[0], res[1], res[2]);
 446         }
 447     }
 448     req.open ("POST", async_global_url + 'script.php?end_async' , true);
 449
 450     var form = new FormData();
 451     form.append ("ref", async_global_ref);
 452     form.append ("code", code);
 453     req.send (form);
 454 }
 455
 456 function upload (url, max_size)
 457 {
 458     if (check_html5_file_api ()
 459         && document.getElementById('file_select').files[0].size >= max_size)
 460     {
 461         async_upload_start (url,
 462             max_size,
 463             document.getElementById('file_select').files[0],
 464             document.getElementById('select_time').value,
 465             document.getElementById('input_key').value,
 466             document.getElementById('one_time_download').checked,
 467             document.getElementById('upload_password').value
 468             );
 469     }
 470     else
 471     {
 472         classic_upload (url,
 473             document.getElementById('file_select').files[0],
 474             document.getElementById('select_time').value,
 475             document.getElementById('input_key').value,
 476             document.getElementById('one_time_download').checked,
 477             document.getElementById('upload_password').value
 478             );
 479     }
 480 }
 481
 482 var upload_time_estimation_total_size = 42;
 483 var upload_time_estimation_transfered_size = 42;
 484 var upload_time_estimation_transfered_date = 42;
 485 var upload_time_estimation_moving_average_speed = 42;
 486
 487 function upload_time_estimation_init(total_size)
 488 {
 489     upload_time_estimation_total_size = total_size;
 490     upload_time_estimation_transfered_size = 0;
 491     upload_time_estimation_moving_average_speed = 0;
 492     var d = new Date();
 493     upload_time_estimation_transfered_date = d.getTime();
 494 }
 495
 496 function upload_time_estimation_add(total_transfered_size)
 497 {
 498     // Let's compute the current speed
 499     var d = new Date();
 500     var speed = upload_time_estimation_moving_average_speed;
 501     if (d.getTime() - upload_time_estimation_transfered_date != 0)
 502         speed = (total_transfered_size - upload_time_estimation_transfered_size)
 503                 / (d.getTime() - upload_time_estimation_transfered_date);
 504     // Let's compute moving average speed on 30 values
 505     var m = (upload_time_estimation_moving_average_speed * 29 + speed) / 30;
 506     // Update global values
 507     upload_time_estimation_transfered_size = total_transfered_size;
 508     upload_time_estimation_transfered_date = d.getTime();
 509     upload_time_estimation_moving_average_speed = m;
 510 }
 511
 512 function upload_time_estimation_speed_string()
 513 {
 514     // speed ms -> s
 515     var s = upload_time_estimation_moving_average_speed * 1000;
 516     var res = 0;
 517     var scale = '';
 518     if (s <= 1000)
 519     {
 520         res = s.toString();
 521         scale = "o/s";
 522     }
 523     else if (s < 1000000)
 524     {
 525         res = Math.floor(s/100) / 10;
 526         scale = "Ko/s";
 527     }
 528     else
 529     {
 530         res = Math.floor(s/100000) / 10;
 531         scale = "Mo/s";
 532     }
 533     if (res == 0)
 534         return '';
 535     return res.toString() + ' ' + scale;
 536 }
 537
 538 function milliseconds_to_time_string (milliseconds)
 539 {
 540     function numberEnding (number) {
 541         return (number > 1) ? 's' : '';
 542     }
 543
 544     var temp = Math.floor(milliseconds / 1000);
 545     var years = Math.floor(temp / 31536000);
 546     if (years) {
 547         return years + ' ' + translate ('year') + numberEnding(years);
 548     }
 549     var days = Math.floor((temp %= 31536000) / 86400);
 550     if (days) {
 551         return days + ' ' + translate ('day') + numberEnding(days);
 552     }
 553     var hours = Math.floor((temp %= 86400) / 3600);
 554     if (hours) {
 555         return hours + ' ' + translate ('hour') + numberEnding(hours);
 556     }
 557     var minutes = Math.floor((temp %= 3600) / 60);
 558     if (minutes) {
 559         return minutes + ' ' + translate ('minute') + numberEnding(minutes);
 560     }
 561     var seconds = temp % 60;
 562     if (seconds) {
 563         return seconds + ' ' + translate ('second') + numberEnding(seconds);
 564     }
 565     return translate ('less than a second');
 566 }
 567
 568 function upload_time_estimation_time()
 569 {
 570     // Estimate remaining time
 571     if (upload_time_estimation_moving_average_speed == 0)
 572         return 0;
 573     return (upload_time_estimation_total_size - upload_time_estimation_transfered_size)
 574             / upload_time_estimation_moving_average_speed;
 575 }
 576
 577 var chrono_last_update = 0;
 578 var chrono_time_ms = 0;
 579 var chrono_time_ms_last_update = 0;
 580 function chrono_update(time_ms)
 581 {
 582     var d = new Date();
 583     var chrono = 0;
 584     // Don't update too often
 585     if (d.getTime() - chrono_last_update < 3000 &&
 586         chrono_time_ms_last_update > 0)
 587         chrono = chrono_time_ms;
 588     else
 589     {
 590         chrono_last_update = d.getTime();
 591         chrono_time_ms = time_ms;
 592         chrono = time_ms;
 593         chrono_time_ms_last_update = d.getTime();
 594     }
 595
 596     // Adjust chrono for smooth estimation
 597     chrono = chrono - (d.getTime() - chrono_time_ms_last_update);
 598
 599     // Let's update chronometer
 600     var time_str = '';
 601     if (chrono > 0)
 602         time_str = milliseconds_to_time_string (chrono);
 603     return time_str;
 604 }
 605
 606 var upload_speed_refresh_limiter_last_update = 0;
 607 var upload_speed_refresh_limiter_last_value = '';
 608 function upload_speed_refresh_limiter(speed_str)
 609 {
 610     var d = new Date();
 611     if (d.getTime() - upload_speed_refresh_limiter_last_update > 1500)
 612     {
 613         upload_speed_refresh_limiter_last_value = speed_str;
 614         upload_speed_refresh_limiter_last_update = d.getTime();
 615     }
 616     return upload_speed_refresh_limiter_last_value;
 617 }