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         // =============={ Configuration End }==============
  76
  77         // Is the local config file there?
  78         if (isReadableFile('config-local.php')) {
  79                 // Load it then
  80                 include('config-local.php');
  81         }
  82
  83         // Enabling error reporting
  84         if ($settings['debug']) {
  85                 error_reporting(E_ALL);
  86                 ini_set('display_startup_errors',1);
  87                 ini_set('display_errors',1);
  88         }
  89
  90         $data = array();
  91
  92         // Name of this file
  93         $data['scriptname'] = pathinfo(__FILE__, PATHINFO_BASENAME);
  94
  95         // Adding current script name to ignore list
  96         $data['ignores'] = $settings['ignores'];
  97         $data['ignores'][] = $data['scriptname'];
  98
  99         // Use canonized path
 100         $data['uploaddir'] = realpath(dirname(__FILE__) . DIRECTORY_SEPARATOR . $settings['uploaddir']);
 101
 102         // Maximum upload size, set by system
 103         $data['max_upload_size'] = ini_get('upload_max_filesize');
 104
 105         // If file deletion or private files are allowed, starting a session.
 106         // This is required for user authentification
 107         if ($settings['allow_deletion'] || $settings['allow_private']) {
 108                 session_start();
 109
 110                 // 'User ID'
 111                 if (!isset($_SESSION['upload_user_id']))
 112                         $_SESSION['upload_user_id'] = mt_rand(100000, 999999);
 113
 114                 // List of filenames that were uploaded by this user
 115                 if (!isset($_SESSION['upload_user_files']))
 116                         $_SESSION['upload_user_files'] = array();
 117         }
 118
 119         // If debug is enabled, logging all variables
 120         if ($settings['debug']) {
 121                 // Displaying debug information
 122                 echo '<h2>Settings:</h2>';
 123                 echo '<pre>';
 124                 print_r($settings);
 125                 echo '</pre>';
 126
 127                 // Displaying debug information
 128                 echo '<h2>Data:</h2>';
 129                 echo '<pre>';
 130                 print_r($data);
 131                 echo '</pre>';
 132                 echo '</pre>';
 133
 134                 // Displaying debug information
 135                 echo '<h2>SESSION:</h2>';
 136                 echo '<pre>';
 137                 print_r($_SESSION);
 138                 echo '</pre>';
 139         }
 140
 141         // Format file size
 142         function formatSize ($bytes) {
 143                 $units = array('B', 'KB', 'MB', 'GB', 'TB');
 144
 145                 $bytes = max($bytes, 0);
 146                 $pow = floor(($bytes ? log($bytes) : 0) / log(1024));
 147                 $pow = min($pow, count($units) - 1);
 148
 149                 $bytes /= pow(1024, $pow);
 150
 151                 return ceil($bytes) . ' ' . $units[$pow];
 152         }
 153
 154         // Rotating a two-dimensional array
 155         function diverseArray ($vector) {
 156                 $result = array();
 157                 foreach ($vector as $key1 => $value1)
 158                         foreach ($value1 as $key2 => $value2)
 159                                 $result[$key2][$key1] = $value2;
 160                 return $result;
 161         }
 162
 163         // Handling file upload
 164         function uploadFile ($file_data) {
 165                 global $settings, $data;
 166
 167                 $file_data['uploaded_file_name'] = basename($file_data['name']);
 168                 $file_data['target_file_name'] = $file_data['uploaded_file_name'];
 169
 170                 // Generating random file name
 171                 if ($settings['random_name_len'] !== false) {
 172                         do {
 173                                 $file_data['target_file_name'] = '';
 174                                 while (strlen($file_data['target_file_name']) < $settings['random_name_len'])
 175                                         $file_data['target_file_name'] .= $settings['random_name_alphabet'][mt_rand(0, strlen($settings['random_name_alphabet']) - 1)];
 176                                 if ($settings['random_name_keep_type'])
 177                                         $file_data['target_file_name'] .= '.' . pathinfo($file_data['uploaded_file_name'], PATHINFO_EXTENSION);
 178                         } while (isReadableFile($file_data['target_file_name']));
 179                 }
 180                 $file_data['upload_target_file'] = $data['uploaddir'] . DIRECTORY_SEPARATOR . $file_data['target_file_name'];
 181
 182                 // Do now allow to overwriting files
 183                 if (isReadableFile($file_data['upload_target_file'])) {
 184                         echo 'File name already exists' . "\n";
 185                         return;
 186                 }
 187
 188                 // Moving uploaded file OK
 189                 if (move_uploaded_file($file_data['tmp_name'], $file_data['upload_target_file'])) {
 190                         if ($settings['allow_deletion'] || $settings['allow_private'])
 191                                 $_SESSION['upload_user_files'][] = $file_data['target_file_name'];
 192                         echo $settings['url'] .  $file_data['target_file_name'] . "\n";
 193                 } else {
 194                         echo 'Error: unable to upload the file.';
 195                 }
 196         }
 197
 198         // Delete file
 199         function deleteFile ($file) {
 200                 global $data;
 201
 202                 if (in_array(substr($file, 1), $_SESSION['upload_user_files']) || in_array($file, $_SESSION['upload_user_files'])) {
 203                         $fqfn = $data['uploaddir'] . DIRECTORY_SEPARATOR . $file;
 204                         if (!in_array($file, $data['ignores']) && isReadableFile($fqfn)) {
 205                                 unlink($fqfn);
 206                                 echo 'File has been removed';
 207                                 exit;
 208                         }
 209                 }
 210         }
 211
 212         // Mark/unmark file as hidden
 213         function markUnmarkHidden ($file) {
 214                 global $data;
 215
 216                 if (in_array(substr($file, 1), $_SESSION['upload_user_files']) || in_array($file, $_SESSION['upload_user_files'])) {
 217                         $fqfn = $data['uploaddir'] . DIRECTORY_SEPARATOR . $file;
 218                         if (!in_array($file, $data['ignores']) && isReadableFile($fqfn)) {
 219                                 if (substr($file, 0, 1) === '.') {
 220                                         rename($fqfn, substr($fqfn, 1));
 221                                         echo 'File has been made visible';
 222                                 } else {
 223                                         rename($fqfn, $data['uploaddir'] . DIRECTORY_SEPARATOR . '.' . $file);
 224                                         echo 'File has been hidden';
 225                                 }
 226                                 exit;
 227                         }
 228                 }
 229         }
 230
 231         // Checks if the given file is a file and is readable
 232         function isReadableFile ($file) {
 233                 return (is_file($file) && is_readable($file));
 234         }
 235
 236         // Files are being POSEed. Uploading them one by one.
 237         if (isset($_FILES['file'])) {
 238                 header('Content-type: text/plain');
 239                 if (is_array($_FILES['file'])) {
 240                         $file_array = diverseArray($_FILES['file']);
 241                         foreach ($file_array as $file_data)
 242                                 uploadFile($file_data);
 243                 } else
 244                         uploadFile($_FILES['file']);
 245                 exit;
 246         }
 247
 248         // Other file functions (delete, private).
 249         if (isset($_POST)) {
 250                 if ($settings['allow_deletion'] && (isset($_POST['target'])) && isset($_POST['action']) && $_POST['action'] === 'delete')
 251                         deleteFile($_POST['target']);
 252
 253                 if ($settings['allow_private'] && (isset($_POST['target'])) && isset($_POST['action']) && $_POST['action'] === 'privatetoggle')
 254                         markUnmarkHidden($_POST['target']);
 255         }
 256
 257         // List files in a given directory, excluding certain files
 258         function createArrayFromPath ($dir) {
 259                 global $data;
 260
 261                 $file_array = array();
 262                 $dh = opendir($dir);
 263                         while ($filename = readdir($dh)) {
 264                                 $fqfn = $dir . DIRECTORY_SEPARATOR . $filename;
 265                                 if (isReadableFile($fqfn) && !in_array($filename, $data['ignores']))
 266                                         $file_array[filemtime($fqfn)] = $filename;
 267                         }
 268
 269                 ksort($file_array);
 270                 $file_array = array_reverse($file_array, true);
 271                 return $file_array;
 272         }
 273
 274         // Removes old files
 275         function removeOldFiles ($dir) {
 276                 global $file_array, $settings;
 277
 278                 foreach ($file_array as $file) {
 279                         $fqfn = $dir . DIRECTORY_SEPARATOR . $file;
 280                         if ($settings['time_limit'] < time() - filemtime($fqfn))
 281                                 unlink($fqfn);
 282                 }
 283         }
 284
 285         // Only read files if the feature is enabled
 286         if ($settings['listfiles']) {
 287                 $file_array = createArrayFromPath($data['uploaddir']);
 288
 289                 // Removing old files
 290                 if ($settings['remove_old_files'])
 291                         removeOldFiles($data['uploaddir']);
 292
 293                 $file_array = createArrayFromPath($data['uploaddir']);
 294         }
 295 ?>
 296 <!DOCTYPE html>
 297 <html lang="<?=$settings['lang']?>" dir="<?=$settings['lang_dir']?>">
 298         <head>
 299                 <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
 300                 <meta http-equiv="Content-Script-Type" content="text/javascript">
 301                 <meta name="robots" content="noindex">
 302                 <meta name="referrer" content="origin-when-crossorigin">
 303                 <title><?=$settings['title']?></title>
 304                 <style media="screen">
 305                 <!--
 306                         body {
 307                                 background: #111;
 308                                 margin: 0;
 309                                 color: #ddd;
 310                                 font-family: sans-serif;
 311                         }
 312
 313                         body > h1 {
 314                                 display: block;
 315                                 background: rgba(255, 255, 255, 0.05);
 316                                 padding: 8px 16px;
 317                                 text-align: center;
 318                                 margin: 0;
 319                         }
 320
 321                         body > form {
 322                                 display: block;
 323                                 background: rgba(255, 255, 255, 0.075);
 324                                 padding: 16px 16px;
 325                                 margin: 0;
 326                                 text-align: center;
 327                         }
 328
 329                         body > ul {
 330                                 display: block;
 331                                 padding: 0;
 332                                 max-width: 1000px;
 333                                 margin: 32px auto;
 334                         }
 335
 336                         body > ul > li {
 337                                 display: block;
 338                                 margin: 0;
 339                                 padding: 0;
 340                         }
 341
 342                         body > ul > li > a {
 343                                 display: block;
 344                                 margin: 0 0 1px 0;
 345                                 list-style: none;
 346                                 background: rgba(255, 255, 255, 0.1);
 347                                 padding: 8px 16px;
 348                                 text-decoration: none;
 349                                 color: inherit;
 350                                 opacity: 0.5;
 351                         }
 352
 353                         body > ul > li > a:hover {
 354                                 opacity: 1;
 355                         }
 356
 357                         body > ul > li > a:active {
 358                                 opacity: 0.5;
 359                         }
 360
 361                         body > ul > li > a > span {
 362                                 float: right;
 363                                 font-size: 90%;
 364                         }
 365
 366                         body > ul > li > form {
 367                                 display: inline-block;
 368                                 padding: 0;
 369                                 margin: 0;
 370                         }
 371
 372                         body > ul > li.owned {
 373                                 margin: 8px;
 374                         }
 375
 376                         body > ul > li > form > button {
 377                                 opacity: 0.5;
 378                                 display: inline-block;
 379                                 padding: 4px 16px;
 380                                 margin: 0;
 381                                 border: 0;
 382                                 background: rgba(255, 255, 255, 0.1);
 383                                 color: inherit;
 384                         }
 385
 386                         body > ul > li > form > button:hover {
 387                                 opacity: 1;
 388                         }
 389
 390                         body > ul > li > form > button:active {
 391                                 opacity: 0.5;
 392                         }
 393
 394                         body > ul > li.uploading {
 395                                 animation: upanim 2s linear 0s infinite alternate;
 396                         }
 397
 398                         @keyframes upanim {
 399                                 from {
 400                                         opacity: 0.3;
 401                                 }
 402                                 to {
 403                                         opacity: 0.8;
 404                                 }
 405                         }
 406                 //-->
 407                 </style>
 408         </head>
 409         <body>
 410                 <h1><?=$settings['title']?></h1>
 411                 <form action="<?= $data['scriptname'] ?>" method="POST" enctype="multipart/form-data" class="dropzone" id="simpleupload-form">
 412                         Maximum upload size: <?php echo $data['max_upload_size']; ?><br />
 413                         <input type="file" name="file[]" multiple required id="simpleupload-input"/>
 414                 </form>
 415                 <?php if ($settings['listfiles']) { ?>
 416                         <ul id="simpleupload-ul">
 417                                 <?php
 418                                         foreach ($file_array as $mtime => $filename) {
 419                                                 $fqfn = $data['uploaddir'] . DIRECTORY_SEPARATOR . $filename;
 420                                                 $file_info = array();
 421                                                 $file_owner = false;
 422                                                 $file_private = $filename[0] === '.';
 423
 424                                                 if ($settings['listfiles_size'])
 425                                                         $file_info[] = formatSize(filesize($fqfn));
 426
 427                                                 if ($settings['listfiles_size'])
 428                                                         $file_info[] = date($settings['listfiles_date_format'], $mtime);
 429
 430                                                 if ($settings['allow_deletion'] || $settings['allow_private'])
 431                                                         if (in_array(substr($filename, 1), $_SESSION['upload_user_files']) || in_array($filename, $_SESSION['upload_user_files']))
 432                                                                 $file_owner = true;
 433
 434                                                 $file_info = implode(', ', $file_info);
 435
 436                                                 if (strlen($file_info) > 0)
 437                                                         $file_info = ' (' . $file_info . ')';
 438
 439                                                 $class = '';
 440                                                 if ($file_owner)
 441                                                         $class = 'owned';
 442
 443                                                 if (!$file_private || $file_owner) {
 444                                                         echo "<li class=\"' . $class . '\">";
 445
 446                                                         $url = str_replace('/./', '/', sprintf('%s%s/%s', $settings['url'], $settings['uploaddir'], $filename));
 447
 448                                                         echo "<a href=\"$url\" target=\"_blank\">$filename<span>$file_info</span></a>";
 449
 450                                                         if ($file_owner) {
 451                                                                 if ($settings['allow_deletion'])
 452                                                                         echo '<form action="' . $data['scriptname'] . '" method="POST"><input type="hidden" name="target" value="' . $filename . '" /><input type="hidden" name="action" value="delete" /><button type="submit">delete</button></form>';
 453
 454                                                                 if ($settings['allow_private'])
 455                                                                         if ($file_private)
 456                                                                                 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>';
 457                                                                         else
 458                                                                                 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>';
 459                                                         }
 460
 461                                                         echo "</li>";
 462                                                 }
 463                                         }
 464                                 ?>
 465                         </ul>
 466                 <?php } ?>
 467                 <a href="https://github.com/muchweb/simple-php-upload"><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>
 468                 <script type="text/javascript">
 469                 <!--
 470                         var target_form = document.getElementById('simpleupload-form'),
 471                                 target_ul = document.getElementById('simpleupload-ul'),
 472                                 target_input = document.getElementById('simpleupload-input');
 473
 474                         target_form.addEventListener('dragover', function (event) {
 475                                 event.preventDefault();
 476                         }, false);
 477
 478                         function AddFileLi (name, info) {
 479                                 target_form.style.display = 'none';
 480
 481                                 var new_li = document.createElement('li');
 482                                 new_li.className = 'uploading';
 483
 484                                 var new_a = document.createElement('a');
 485                                 new_a.innerHTML = name;
 486                                 new_li.appendChild(new_a);
 487
 488                                 var new_span = document.createElement('span');
 489                                 new_span.innerHTML = info;
 490                                 new_a.appendChild(new_span);
 491
 492                                 target_ul.insertBefore(new_li, target_ul.firstChild);
 493                         }
 494
 495                         function HandleFiles (event) {
 496                                 event.preventDefault();
 497
 498                                 var i = 0,
 499                                         files = event.dataTransfer.files,
 500                                         len = files.length;
 501
 502                                 var form = new FormData();
 503
 504                                 for (; i < len; i++) {
 505                                         form.append('file[]', files[i]);
 506                                         AddFileLi(files[i].name, files[i].size + ' bytes');
 507                                 }
 508
 509                                 var xhr = new XMLHttpRequest();
 510                                 xhr.onload = function() {
 511                                         window.location.reload();
 512                                 };
 513
 514                                 xhr.open('post', '<?php echo $data['scriptname']; ?>', true);
 515                                 xhr.send(form);
 516                         }
 517
 518                         target_form.addEventListener('drop', HandleFiles, false);
 519
 520                         document.getElementById('simpleupload-input').onchange = function () {
 521                                 AddFileLi('Uploading...', '');
 522                                 target_form.submit();
 523                         };
 524                 //-->
 525                 </script>
 526         </body>
 527 </html>