index.php

   1 <?php
   2         /*
   3                 This program is free software: you can redistribute it and/or modify
   4                 it under the terms of the GNU General Public License as published by
   5                 the Free Software Foundation, either version 3 of the License, or
   6                 (at your option) any later version.
   7
   8                 This program is distributed in the hope that it will be useful,
   9                 but WITHOUT ANY WARRANTY; without even the implied warranty of
  10                 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11                 GNU General Public License for more details.
  12
  13                 You should have received a copy of the GNU General Public License
  14                 along with this program.  If not, see <http://www.gnu.org/licenses/>.
  15         */
  16
  17         // =============={ Configuration Begin }==============
  18         $settings = array(
  19
  20                 // Website title
  21                 'title' => 'strace.club',
  22
  23                 // Directory to store uploaded files
  24                 'uploaddir' => '.',
  25
  26                 // Display list uploaded files
  27                 'listfiles' => true,
  28
  29                 // Allow users to delete files that they have uploaded (will enable sessions)
  30                 'allow_deletion' => true,
  31
  32                 // Allow users to mark files as hidden
  33                 'allow_private' => true,
  34
  35                 // Display file sizes
  36                 'listfiles_size' => true,
  37
  38                 // Display file dates
  39                 'listfiles_date' => true,
  40
  41                 // Display file dates format
  42                 'listfiles_date_format' => 'F d Y H:i:s',
  43
  44                 // Randomize file names (number of 'false')
  45                 'random_name_len' => 8,
  46
  47                 // Keep filetype information (if random name is activated)
  48                 'random_name_keep_type' => true,
  49
  50                 // Random file name letters
  51                 'random_name_alphabet' => 'qazwsxedcrfvtgbyhnujmikolp1234567890',
  52
  53                 // Display debugging information
  54                 'debug' => false,
  55
  56                 // Complete URL to your directory (including tracing slash)
  57                 'url' => 'http://strace.club/',
  58
  59                 // Amount of seconds that each file should be stored for (0 for no limit)
  60                 // Default 30 days
  61                 'time_limit' => 60 * 60 * 24 * 30,
  62
  63                 // Files that will be ignored
  64                 'ignores' => array('.', '..', 'LICENSE', 'README.md'),
  65
  66                 // Language code
  67                 'lang' => 'en',
  68
  69                 // Language direction
  70                 'lang_dir' => 'ltr',
  71
  72                 // Remove old files?
  73                 'remove_old_files' => true,
  74
  75                 // Privacy: Allow external references (the "fork me" ribbon)
  76                 'allow_external_refs' => true,
  77         );
  78         // =============={ Configuration End }==============
  79
  80         // Is the local config file there?
  81         if (isReadableFile('config-local.php')) {
  82                 // Load it then
  83                 include('config-local.php');
  84         }
  85
  86         // Enabling error reporting
  87         if ($settings['debug']) {
  88                 error_reporting(E_ALL);
  89                 ini_set('display_startup_errors',1);
  90                 ini_set('display_errors',1);
  91         }
  92
  93         $data = array();
  94
  95         // Name of this file
  96         $data['scriptname'] = $settings['url'] . '/' . pathinfo(__FILE__, PATHINFO_BASENAME);
  97
  98         // Adding current script name to ignore list
  99         $data['ignores'] = $settings['ignores'];
 100         $data['ignores'][] = basename($data['scriptname']);
 101
 102         // Use canonized path
 103         $data['uploaddir'] = realpath(dirname(__FILE__) . DIRECTORY_SEPARATOR . $settings['uploaddir']);
 104
 105         // Maximum upload size, set by system
 106         $data['max_upload_size'] = ini_get('upload_max_filesize');
 107
 108         // If file deletion or private files are allowed, starting a session.
 109         // This is required for user authentification
 110         if ($settings['allow_deletion'] || $settings['allow_private']) {
 111                 session_start();
 112
 113                 // 'User ID'
 114                 if (!isset($_SESSION['upload_user_id']))
 115                         $_SESSION['upload_user_id'] = mt_rand(100000, 999999);
 116
 117                 // List of filenames that were uploaded by this user
 118                 if (!isset($_SESSION['upload_user_files']))
 119                         $_SESSION['upload_user_files'] = array();
 120         }
 121
 122         // If debug is enabled, logging all variables
 123         if ($settings['debug']) {
 124                 // Displaying debug information
 125                 echo '<h2>Settings:</h2>';
 126                 echo '<pre>';
 127                 print_r($settings);
 128                 echo '</pre>';
 129
 130                 // Displaying debug information
 131                 echo '<h2>Data:</h2>';
 132                 echo '<pre>';
 133                 print_r($data);
 134                 echo '</pre>';
 135                 echo '</pre>';
 136
 137                 // Displaying debug information
 138                 echo '<h2>SESSION:</h2>';
 139                 echo '<pre>';
 140                 print_r($_SESSION);
 141                 echo '</pre>';
 142         }
 143
 144         // Format file size
 145         function formatSize ($bytes) {
 146                 $units = array('B', 'KB', 'MB', 'GB', 'TB');
 147
 148                 $bytes = max($bytes, 0);
 149                 $pow = floor(($bytes ? log($bytes) : 0) / log(1024));
 150                 $pow = min($pow, count($units) - 1);
 151
 152                 $bytes /= pow(1024, $pow);
 153
 154                 return ceil($bytes) . ' ' . $units[$pow];
 155         }
 156
 157         // Rotating a two-dimensional array
 158         function diverseArray ($vector) {
 159                 $result = array();
 160                 foreach ($vector as $key1 => $value1)
 161                         foreach ($value1 as $key2 => $value2)
 162                                 $result[$key2][$key1] = $value2;
 163                 return $result;
 164         }
 165
 166         // Handling file upload
 167         function uploadFile ($file_data) {
 168                 global $settings, $data;
 169
 170                 $file_data['uploaded_file_name'] = basename($file_data['name']);
 171                 $file_data['target_file_name'] = $file_data['uploaded_file_name'];
 172
 173                 // Generating random file name
 174                 if ($settings['random_name_len'] !== false) {
 175                         do {
 176                                 $file_data['target_file_name'] = '';
 177                                 while (strlen($file_data['target_file_name']) < $settings['random_name_len'])
 178                                         $file_data['target_file_name'] .= $settings['random_name_alphabet'][mt_rand(0, strlen($settings['random_name_alphabet']) - 1)];
 179                                 if ($settings['random_name_keep_type'])
 180                                         $file_data['target_file_name'] .= '.' . pathinfo($file_data['uploaded_file_name'], PATHINFO_EXTENSION);
 181                         } while (isReadableFile($file_data['target_file_name']));
 182                 }
 183                 $file_data['upload_target_file'] = $data['uploaddir'] . DIRECTORY_SEPARATOR . $file_data['target_file_name'];
 184
 185                 // Do now allow to overwriting files
 186                 if (isReadableFile($file_data['upload_target_file'])) {
 187                         echo 'File name already exists' . "\n";
 188                         return false;
 189                 }
 190
 191                 // Moving uploaded file OK
 192                 if (move_uploaded_file($file_data['tmp_name'], $file_data['upload_target_file'])) {
 193                         if ($settings['allow_deletion'] || $settings['allow_private'])
 194                                 $_SESSION['upload_user_files'][] = $file_data['target_file_name'];
 195                         echo $settings['url'] .  $file_data['target_file_name'] . "\n";
 196
 197                         // Return target file name for later handling
 198                         return $file_data['upload_target_file'];
 199                 } else {
 200                         echo 'Error: unable to upload the file.';
 201                         return false;
 202                 }
 203         }
 204
 205         // Delete file
 206         function deleteFile ($file) {
 207                 global $data;
 208
 209                 if (in_array(substr($file, 1), $_SESSION['upload_user_files']) || in_array($file, $_SESSION['upload_user_files'])) {
 210                         $fqfn = $data['uploaddir'] . DIRECTORY_SEPARATOR . $file;
 211                         if (!in_array($file, $data['ignores']) && isReadableFile($fqfn)) {
 212                                 unlink($fqfn);
 213                                 echo 'File has been removed';
 214                                 exit;
 215                         }
 216                 }
 217         }
 218
 219         // Mark/unmark file as hidden
 220         function markUnmarkHidden ($file) {
 221                 global $data;
 222
 223                 if (in_array(substr($file, 1), $_SESSION['upload_user_files']) || in_array($file, $_SESSION['upload_user_files'])) {
 224                         $fqfn = $data['uploaddir'] . DIRECTORY_SEPARATOR . $file;
 225                         if (!in_array($file, $data['ignores']) && isReadableFile($fqfn)) {
 226                                 if (substr($file, 0, 1) === '.') {
 227                                         rename($fqfn, substr($fqfn, 1));
 228                                         echo 'File has been made visible';
 229                                 } else {
 230                                         rename($fqfn, $data['uploaddir'] . DIRECTORY_SEPARATOR . '.' . $file);
 231                                         echo 'File has been hidden';
 232                                 }
 233                                 exit;
 234                         }
 235                 }
 236         }
 237
 238         // Checks if the given file is a file and is readable
 239         function isReadableFile ($file) {
 240                 return (is_file($file) && is_readable($file));
 241         }
 242
 243         // Files are being POSEed. Uploading them one by one.
 244         if (isset($_FILES['file'])) {
 245                 header('Content-type: text/plain');
 246                 if (is_array($_FILES['file'])) {
 247                         $file_array = diverseArray($_FILES['file']);
 248                         foreach ($file_array as $file_data)
 249                                 uploadFile($file_data);
 250                 } else {
 251                         uploadFile($_FILES['file']);
 252                 }
 253                 exit;
 254         }
 255
 256         // Other file functions (delete, private).
 257         if (isset($_POST)) {
 258                 if ($settings['allow_deletion'] && (isset($_POST['target'])) && isset($_POST['action']) && $_POST['action'] === 'delete')
 259                         deleteFile($_POST['target']);
 260
 261                 if ($settings['allow_private'] && (isset($_POST['target'])) && isset($_POST['action']) && $_POST['action'] === 'privatetoggle')
 262                         markUnmarkHidden($_POST['target']);
 263         }
 264
 265         // List files in a given directory, excluding certain files
 266         function createArrayFromPath ($dir) {
 267                 global $data;
 268
 269                 $file_array = array();
 270
 271                 $dh = opendir($dir);
 272
 273                 while ($filename = readdir($dh)) {
 274                         $fqfn = $dir . DIRECTORY_SEPARATOR . $filename;
 275                         if (isReadableFile($fqfn) && !in_array($filename, $data['ignores']))
 276                                 $file_array[filemtime($fqfn)] = $filename;
 277                 }
 278
 279                 ksort($file_array);
 280
 281                 $file_array = array_reverse($file_array, true);
 282
 283                 return $file_array;
 284         }
 285
 286         // Removes old files
 287         function removeOldFiles ($dir) {
 288                 global $file_array, $settings;
 289
 290                 foreach ($file_array as $file) {
 291                         $fqfn = $dir . DIRECTORY_SEPARATOR . $file;
 292                         if ($settings['time_limit'] < time() - filemtime($fqfn))
 293                                 unlink($fqfn);
 294                 }
 295         }
 296
 297         // Only read files if the feature is enabled
 298         if ($settings['listfiles']) {
 299                 $file_array = createArrayFromPath($data['uploaddir']);
 300
 301                 // Removing old files
 302                 if ($settings['remove_old_files'])
 303                         removeOldFiles($data['uploaddir']);
 304
 305                 $file_array = createArrayFromPath($data['uploaddir']);
 306         }
 307 ?>
 308 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
 309 <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="<?=$settings['lang']?>" lang="<?=$settings['lang']?>" dir="<?=$settings['lang_dir']?>">
 310         <head>
 311                 <meta http-equiv="content-type" content="text/html;charset=UTF-8" />
 312                 <meta http-equiv="content-style-type" content="text/css" />
 313                 <meta http-equiv="content-script-type" content="text/javascript" />
 314                 <meta http-equiv="language" content="de" />
 315
 316                 <meta name="robots" content="noindex" />
 317                 <meta name="referrer" content="origin-when-crossorigin" />
 318                 <title><?=$settings['title']?></title>
 319                 <style type="text/css" media="screen">
 320                         body {
 321                                 background: #111;
 322                                 margin: 0;
 323                                 color: #ddd;
 324                                 font-family: sans-serif;
 325                         }
 326
 327                         body > h1 {
 328                                 display: block;
 329                                 background: rgba(255, 255, 255, 0.05);
 330                                 padding: 8px 16px;
 331                                 text-align: center;
 332                                 margin: 0;
 333                         }
 334
 335                         body > form {
 336                                 display: block;
 337                                 background: rgba(255, 255, 255, 0.075);
 338                                 padding: 16px 16px;
 339                                 margin: 0;
 340                                 text-align: center;
 341                         }
 342
 343                         body > ul {
 344                                 display: block;
 345                                 padding: 0;
 346                                 max-width: 1000px;
 347                                 margin: 32px auto;
 348                         }
 349
 350                         body > ul > li {
 351                                 display: block;
 352                                 margin: 0;
 353                                 padding: 0;
 354                         }
 355
 356                         body > ul > li > a {
 357                                 display: block;
 358                                 margin: 0 0 1px 0;
 359                                 list-style: none;
 360                                 background: rgba(255, 255, 255, 0.1);
 361                                 padding: 8px 16px;
 362                                 text-decoration: none;
 363                                 color: inherit;
 364                                 opacity: 0.5;
 365                         }
 366
 367                         body > ul > li > a:hover {
 368                                 opacity: 1;
 369                         }
 370
 371                         body > ul > li > a:active {
 372                                 opacity: 0.5;
 373                         }
 374
 375                         body > ul > li > a > span {
 376                                 float: right;
 377                                 font-size: 90%;
 378                         }
 379
 380                         body > ul > li > form {
 381                                 display: inline-block;
 382                                 padding: 0;
 383                                 margin: 0;
 384                         }
 385
 386                         body > ul > li.owned {
 387                                 margin: 8px;
 388                         }
 389
 390                         body > ul > li > form > button {
 391                                 opacity: 0.5;
 392                                 display: inline-block;
 393                                 padding: 4px 16px;
 394                                 margin: 0;
 395                                 border: 0;
 396                                 background: rgba(255, 255, 255, 0.1);
 397                                 color: inherit;
 398                         }
 399
 400                         body > ul > li > form > button:hover {
 401                                 opacity: 1;
 402                         }
 403
 404                         body > ul > li > form > button:active {
 405                                 opacity: 0.5;
 406                         }
 407
 408                         body > ul > li.uploading {
 409                                 animation: upanim 2s linear 0s infinite alternate;
 410                         }
 411
 412                         @keyframes upanim {
 413                                 from {
 414                                         opacity: 0.3;
 415                                 }
 416                                 to {
 417                                         opacity: 0.8;
 418                                 }
 419                         }
 420                 </style>
 421         </head>
 422         <body>
 423                 <h1><?=$settings['title']?></h1>
 424                 <form action="<?= $data['scriptname'] ?>" method="post" enctype="multipart/form-data" class="dropzone" id="simpleupload-form">
 425                         Maximum upload size: <?php echo $data['max_upload_size']; ?><br />
 426                         <input type="file" name="file[]" id="simpleupload-input" />
 427                 </form>
 428                 <?php if ($settings['listfiles']) { ?>
 429                         <ul id="simpleupload-ul">
 430                                 <?php
 431                                         foreach ($file_array as $mtime => $filename) {
 432                                                 $fqfn = $data['uploaddir'] . DIRECTORY_SEPARATOR . $filename;
 433                                                 $file_info = array();
 434                                                 $file_owner = false;
 435                                                 $file_private = $filename[0] === '.';
 436
 437                                                 if ($settings['listfiles_size'])
 438                                                         $file_info[] = formatSize(filesize($fqfn));
 439
 440                                                 if ($settings['listfiles_size'])
 441                                                         $file_info[] = date($settings['listfiles_date_format'], $mtime);
 442
 443                                                 if ($settings['allow_deletion'] || $settings['allow_private'])
 444                                                         if (in_array(substr($filename, 1), $_SESSION['upload_user_files']) || in_array($filename, $_SESSION['upload_user_files']))
 445                                                                 $file_owner = true;
 446
 447                                                 $file_info = implode(', ', $file_info);
 448
 449                                                 if (strlen($file_info) > 0)
 450                                                         $file_info = ' (' . $file_info . ')';
 451
 452                                                 $class = '';
 453                                                 if ($file_owner)
 454                                                         $class = 'owned';
 455
 456                                                 if (!$file_private || $file_owner) {
 457                                                         echo "<li class=\"' . $class . '\">";
 458
 459                                                         // Create full-qualified URL and clean it a bit
 460                                                         $url = str_replace('/./', '/', sprintf('%s%s/%s', $settings['url'], $settings['uploaddir'], $filename));
 461
 462                                                         echo "<a href=\"$url\" target=\"_blank\">$filename<span>$file_info</span></a>";
 463
 464                                                         if ($file_owner) {
 465                                                                 if ($settings['allow_deletion'])
 466                                                                         echo '<form action="' . $data['scriptname'] . '" method="post"><input type="hidden" name="target" value="' . $filename . '" /><input type="hidden" name="action" value="delete" /><button type="submit">delete</button></form>';
 467
 468                                                                 if ($settings['allow_private'])
 469                                                                         if ($file_private)
 470                                                                                 echo '<form action="' . $data['scriptname'] . '" method="post"><input type="hidden" name="target" value="' . $filename . '" /><input type="hidden" name="action" value="privatetoggle" /><button type="submit">make public</button></form>';
 471                                                                         else
 472                                                                                 echo '<form action="' . $data['scriptname'] . '" method="post"><input type="hidden" name="target" value="' . $filename . '" /><input type="hidden" name="action" value="privatetoggle" /><button type="submit">make private</button></form>';
 473                                                         }
 474
 475                                                         echo "</li>";
 476                                                 }
 477                                         }
 478                                 ?>
 479                         </ul>
 480                 <?php
 481                 }
 482
 483                 if ($settings['allow_external_refs']) {
 484                 ?>
 485                         <a href="https://github.com/muchweb/simple-php-upload" target="_blank"><img style="position: absolute; top: 0; right: 0; border: 0;" src="https://camo.githubusercontent.com/38ef81f8aca64bb9a64448d0d70f1308ef5341ab/68747470733a2f2f73332e616d617a6f6e6177732e636f6d2f6769746875622f726962626f6e732f666f726b6d655f72696768745f6461726b626c75655f3132313632312e706e67" alt="Fork me on GitHub" data-canonical-src="https://s3.amazonaws.com/github/ribbons/forkme_right_darkblue_121621.png"></a>
 486                 <?php
 487                 } else {
 488                 ?>
 489                         <a href="https://github.com/muchweb/simple-php-upload" target="_blank">Fork me on GitHub</a>
 490                 <?php
 491                 }
 492                 ?>
 493                 <script type="text/javascript">
 494                 <!--
 495                         // Init some variales to shorten code
 496                         var target_form        = document.getElementById('simpleupload-form');
 497                         var target_ul          = document.getElementById('simpleupload-ul');
 498                         var target_input       = document.getElementById('simpleupload-input');
 499                         var settings_listfiles = <?=($settings['listfiles'] ? 'true' : 'false')?>;
 500
 501                         /**
 502                          * Initializes the upload form
 503                          */
 504                         function init () {
 505                                 // Register drag-over event listener
 506                                 target_form.addEventListener('dragover', function (event) {
 507                                         event.preventDefault();
 508                                 }, false);
 509
 510                                 // ... and the drop event listener
 511                                 target_form.addEventListener('drop', handleFiles, false);
 512
 513                                 // Register onchange-event function
 514                                 target_input.onchange = function () {
 515                                         addFileLi('Uploading...', '');
 516                                         target_form.submit();
 517                                 };
 518                         }
 519
 520                         /**
 521                          * Adds given file in a new li-tag to target_ul list
 522                          *
 523                          * @param name Name of the file
 524                          * @param info Some more informations
 525                          */
 526                         function addFileLi (name, info) {
 527                                 if (settings_listfiles == false) {
 528                                         return;
 529                                 }
 530
 531                                 target_form.style.display = 'none';
 532
 533                                 var new_li = document.createElement('li');
 534                                 new_li.className = 'uploading';
 535
 536                                 var new_a = document.createElement('a');
 537                                 new_a.innerHTML = name;
 538                                 new_li.appendChild(new_a);
 539
 540                                 var new_span = document.createElement('span');
 541                                 new_span.innerHTML = info;
 542                                 new_a.appendChild(new_span);
 543
 544                                 target_ul.insertBefore(new_li, target_ul.firstChild);
 545                         }
 546
 547                         /**
 548                          * Handles given event for file upload
 549                          *
 550                          * @param event Event to handle file upload for
 551                          */
 552                         function handleFiles (event) {
 553                                 event.preventDefault();
 554
 555                                 var files = event.dataTransfer.files;
 556
 557                                 var form = new FormData();
 558
 559                                 for (var i = 0; i < files.length; i++) {
 560                                         form.append('file[]', files[i]);
 561                                         addFileLi(files[i].name, files[i].size + ' bytes');
 562                                 }
 563
 564                                 var xhr = new XMLHttpRequest();
 565                                 xhr.onload = function() {
 566                                         window.location.reload();
 567                                 };
 568
 569                                 xhr.open('post', '<?php echo $data['scriptname']; ?>', true);
 570                                 xhr.send(form);
 571                         }
 572
 573                         // Initialize upload form
 574                         init();
 575
 576                 //-->
 577                 </script>
 578         </body>
 579 </html>