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;
 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'] .  $file_data['target_file_name'] . "\n";
 196                 } else {
 197                         echo 'Error: unable to upload the file.';
 198                 }
 199         }
 200
 201         // Delete file
 202         function deleteFile ($file) {
 203                 global $data;
 204
 205                 if (in_array(substr($file, 1), $_SESSION['upload_user_files']) || in_array($file, $_SESSION['upload_user_files'])) {
 206                         $fqfn = $data['uploaddir'] . DIRECTORY_SEPARATOR . $file;
 207                         if (!in_array($file, $data['ignores']) && isReadableFile($fqfn)) {
 208                                 unlink($fqfn);
 209                                 echo 'File has been removed';
 210                                 exit;
 211                         }
 212                 }
 213         }
 214
 215         // Mark/unmark file as hidden
 216         function markUnmarkHidden ($file) {
 217                 global $data;
 218
 219                 if (in_array(substr($file, 1), $_SESSION['upload_user_files']) || in_array($file, $_SESSION['upload_user_files'])) {
 220                         $fqfn = $data['uploaddir'] . DIRECTORY_SEPARATOR . $file;
 221                         if (!in_array($file, $data['ignores']) && isReadableFile($fqfn)) {
 222                                 if (substr($file, 0, 1) === '.') {
 223                                         rename($fqfn, substr($fqfn, 1));
 224                                         echo 'File has been made visible';
 225                                 } else {
 226                                         rename($fqfn, $data['uploaddir'] . DIRECTORY_SEPARATOR . '.' . $file);
 227                                         echo 'File has been hidden';
 228                                 }
 229                                 exit;
 230                         }
 231                 }
 232         }
 233
 234         // Checks if the given file is a file and is readable
 235         function isReadableFile ($file) {
 236                 return (is_file($file) && is_readable($file));
 237         }
 238
 239         // Files are being POSEed. Uploading them one by one.
 240         if (isset($_FILES['file'])) {
 241                 header('Content-type: text/plain');
 242                 if (is_array($_FILES['file'])) {
 243                         $file_array = diverseArray($_FILES['file']);
 244                         foreach ($file_array as $file_data)
 245                                 uploadFile($file_data);
 246                 } else {
 247                         uploadFile($_FILES['file']);
 248                 }
 249                 exit;
 250         }
 251
 252         // Other file functions (delete, private).
 253         if (isset($_POST)) {
 254                 if ($settings['allow_deletion'] && (isset($_POST['target'])) && isset($_POST['action']) && $_POST['action'] === 'delete')
 255                         deleteFile($_POST['target']);
 256
 257                 if ($settings['allow_private'] && (isset($_POST['target'])) && isset($_POST['action']) && $_POST['action'] === 'privatetoggle')
 258                         markUnmarkHidden($_POST['target']);
 259         }
 260
 261         // List files in a given directory, excluding certain files
 262         function createArrayFromPath ($dir) {
 263                 global $data;
 264
 265                 $file_array = array();
 266
 267                 $dh = opendir($dir);
 268
 269                 while ($filename = readdir($dh)) {
 270                         $fqfn = $dir . DIRECTORY_SEPARATOR . $filename;
 271                         if (isReadableFile($fqfn) && !in_array($filename, $data['ignores']))
 272                                 $file_array[filemtime($fqfn)] = $filename;
 273                 }
 274
 275                 ksort($file_array);
 276
 277                 $file_array = array_reverse($file_array, true);
 278
 279                 return $file_array;
 280         }
 281
 282         // Removes old files
 283         function removeOldFiles ($dir) {
 284                 global $file_array, $settings;
 285
 286                 foreach ($file_array as $file) {
 287                         $fqfn = $dir . DIRECTORY_SEPARATOR . $file;
 288                         if ($settings['time_limit'] < time() - filemtime($fqfn))
 289                                 unlink($fqfn);
 290                 }
 291         }
 292
 293         // Only read files if the feature is enabled
 294         if ($settings['listfiles']) {
 295                 $file_array = createArrayFromPath($data['uploaddir']);
 296
 297                 // Removing old files
 298                 if ($settings['remove_old_files'])
 299                         removeOldFiles($data['uploaddir']);
 300
 301                 $file_array = createArrayFromPath($data['uploaddir']);
 302         }
 303 ?>
 304 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
 305 <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="<?=$settings['lang']?>" lang="<?=$settings['lang']?>" dir="<?=$settings['lang_dir']?>">
 306         <head>
 307                 <meta http-equiv="content-type" content="text/html;charset=UTF-8" />
 308                 <meta http-equiv="content-style-type" content="text/css" />
 309                 <meta http-equiv="content-script-type" content="text/javascript" />
 310                 <meta http-equiv="language" content="de" />
 311
 312                 <meta name="robots" content="noindex" />
 313                 <meta name="referrer" content="origin-when-crossorigin" />
 314                 <title><?=$settings['title']?></title>
 315                 <style type="text/css" media="screen">
 316                         body {
 317                                 background: #111;
 318                                 margin: 0;
 319                                 color: #ddd;
 320                                 font-family: sans-serif;
 321                         }
 322
 323                         body > h1 {
 324                                 display: block;
 325                                 background: rgba(255, 255, 255, 0.05);
 326                                 padding: 8px 16px;
 327                                 text-align: center;
 328                                 margin: 0;
 329                         }
 330
 331                         body > form {
 332                                 display: block;
 333                                 background: rgba(255, 255, 255, 0.075);
 334                                 padding: 16px 16px;
 335                                 margin: 0;
 336                                 text-align: center;
 337                         }
 338
 339                         body > ul {
 340                                 display: block;
 341                                 padding: 0;
 342                                 max-width: 1000px;
 343                                 margin: 32px auto;
 344                         }
 345
 346                         body > ul > li {
 347                                 display: block;
 348                                 margin: 0;
 349                                 padding: 0;
 350                         }
 351
 352                         body > ul > li > a {
 353                                 display: block;
 354                                 margin: 0 0 1px 0;
 355                                 list-style: none;
 356                                 background: rgba(255, 255, 255, 0.1);
 357                                 padding: 8px 16px;
 358                                 text-decoration: none;
 359                                 color: inherit;
 360                                 opacity: 0.5;
 361                         }
 362
 363                         body > ul > li > a:hover {
 364                                 opacity: 1;
 365                         }
 366
 367                         body > ul > li > a:active {
 368                                 opacity: 0.5;
 369                         }
 370
 371                         body > ul > li > a > span {
 372                                 float: right;
 373                                 font-size: 90%;
 374                         }
 375
 376                         body > ul > li > form {
 377                                 display: inline-block;
 378                                 padding: 0;
 379                                 margin: 0;
 380                         }
 381
 382                         body > ul > li.owned {
 383                                 margin: 8px;
 384                         }
 385
 386                         body > ul > li > form > button {
 387                                 opacity: 0.5;
 388                                 display: inline-block;
 389                                 padding: 4px 16px;
 390                                 margin: 0;
 391                                 border: 0;
 392                                 background: rgba(255, 255, 255, 0.1);
 393                                 color: inherit;
 394                         }
 395
 396                         body > ul > li > form > button:hover {
 397                                 opacity: 1;
 398                         }
 399
 400                         body > ul > li > form > button:active {
 401                                 opacity: 0.5;
 402                         }
 403
 404                         body > ul > li.uploading {
 405                                 animation: upanim 2s linear 0s infinite alternate;
 406                         }
 407
 408                         @keyframes upanim {
 409                                 from {
 410                                         opacity: 0.3;
 411                                 }
 412                                 to {
 413                                         opacity: 0.8;
 414                                 }
 415                         }
 416                 </style>
 417         </head>
 418         <body>
 419                 <h1><?=$settings['title']?></h1>
 420                 <form action="<?= $data['scriptname'] ?>" method="post" enctype="multipart/form-data" class="dropzone" id="simpleupload-form">
 421                         Maximum upload size: <?php echo $data['max_upload_size']; ?><br />
 422                         <input type="file" name="file[]" id="simpleupload-input" />
 423                 </form>
 424                 <?php if ($settings['listfiles']) { ?>
 425                         <ul id="simpleupload-ul">
 426                                 <?php
 427                                         foreach ($file_array as $mtime => $filename) {
 428                                                 $fqfn = $data['uploaddir'] . DIRECTORY_SEPARATOR . $filename;
 429                                                 $file_info = array();
 430                                                 $file_owner = false;
 431                                                 $file_private = $filename[0] === '.';
 432
 433                                                 if ($settings['listfiles_size'])
 434                                                         $file_info[] = formatSize(filesize($fqfn));
 435
 436                                                 if ($settings['listfiles_size'])
 437                                                         $file_info[] = date($settings['listfiles_date_format'], $mtime);
 438
 439                                                 if ($settings['allow_deletion'] || $settings['allow_private'])
 440                                                         if (in_array(substr($filename, 1), $_SESSION['upload_user_files']) || in_array($filename, $_SESSION['upload_user_files']))
 441                                                                 $file_owner = true;
 442
 443                                                 $file_info = implode(', ', $file_info);
 444
 445                                                 if (strlen($file_info) > 0)
 446                                                         $file_info = ' (' . $file_info . ')';
 447
 448                                                 $class = '';
 449                                                 if ($file_owner)
 450                                                         $class = 'owned';
 451
 452                                                 if (!$file_private || $file_owner) {
 453                                                         echo "<li class=\"' . $class . '\">";
 454
 455                                                         // Create full-qualified URL and clean it a bit
 456                                                         $url = str_replace('/./', '/', sprintf('%s%s/%s', $settings['url'], $settings['uploaddir'], $filename));
 457
 458                                                         echo "<a href=\"$url\" target=\"_blank\">$filename<span>$file_info</span></a>";
 459
 460                                                         if ($file_owner) {
 461                                                                 if ($settings['allow_deletion'])
 462                                                                         echo '<form action="' . $data['scriptname'] . '" method="post"><input type="hidden" name="target" value="' . $filename . '" /><input type="hidden" name="action" value="delete" /><button type="submit">delete</button></form>';
 463
 464                                                                 if ($settings['allow_private'])
 465                                                                         if ($file_private)
 466                                                                                 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>';
 467                                                                         else
 468                                                                                 echo '<form action="' . $data['scriptname'] . '" method="post"><input type="hidden" name="target" value="' . $filename . '" /><input type="hidden" name="action" value="privatetoggle" /><button type="submit">make private</button></form>';
 469                                                         }
 470
 471                                                         echo "</li>";
 472                                                 }
 473                                         }
 474                                 ?>
 475                         </ul>
 476                 <?php
 477                 }
 478
 479                 if ($settings['allow_external_refs']) {
 480                 ?>
 481                         <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>
 482                 <?php
 483                 } else {
 484                 ?>
 485                         <a href="https://github.com/muchweb/simple-php-upload" target="_blank">Fork me on GitHub</a>
 486                 <?php
 487                 }
 488                 ?>
 489                 <script type="text/javascript">
 490                 <!--
 491                         // Init some variales to shorten code
 492                         var target_form        = document.getElementById('simpleupload-form');
 493                         var target_ul          = document.getElementById('simpleupload-ul');
 494                         var target_input       = document.getElementById('simpleupload-input');
 495                         var settings_listfiles = <?=($settings['listfiles'] ? 'true' : 'false')?>;
 496
 497                         /**
 498                          * Initializes the upload form
 499                          */
 500                         function init () {
 501                                 // Register drag-over event listener
 502                                 target_form.addEventListener('dragover', function (event) {
 503                                         event.preventDefault();
 504                                 }, false);
 505
 506                                 // ... and the drop event listener
 507                                 target_form.addEventListener('drop', handleFiles, false);
 508
 509                                 // Register onchange-event function
 510                                 target_input.onchange = function () {
 511                                         addFileLi('Uploading...', '');
 512                                         target_form.submit();
 513                                 };
 514                         }
 515
 516                         /**
 517                          * Adds given file in a new li-tag to target_ul list
 518                          *
 519                          * @param name Name of the file
 520                          * @param info Some more informations
 521                          */
 522                         function addFileLi (name, info) {
 523                                 if (settings_listfiles == false) {
 524                                         return;
 525                                 }
 526
 527                                 target_form.style.display = 'none';
 528
 529                                 var new_li = document.createElement('li');
 530                                 new_li.className = 'uploading';
 531
 532                                 var new_a = document.createElement('a');
 533                                 new_a.innerHTML = name;
 534                                 new_li.appendChild(new_a);
 535
 536                                 var new_span = document.createElement('span');
 537                                 new_span.innerHTML = info;
 538                                 new_a.appendChild(new_span);
 539
 540                                 target_ul.insertBefore(new_li, target_ul.firstChild);
 541                         }
 542
 543                         /**
 544                          * Handles given event for file upload
 545                          *
 546                          * @param event Event to handle file upload for
 547                          */
 548                         function handleFiles (event) {
 549                                 event.preventDefault();
 550
 551                                 var files = event.dataTransfer.files;
 552
 553                                 var form = new FormData();
 554
 555                                 for (var i = 0; i < files.length; i++) {
 556                                         form.append('file[]', files[i]);
 557                                         addFileLi(files[i].name, files[i].size + ' bytes');
 558                                 }
 559
 560                                 var xhr = new XMLHttpRequest();
 561                                 xhr.onload = function() {
 562                                         window.location.reload();
 563                                 };
 564
 565                                 xhr.open('post', '<?php echo $data['scriptname']; ?>', true);
 566                                 xhr.send(form);
 567                         }
 568
 569                         // Initialize upload form
 570                         init();
 571
 572                 //-->
 573                 </script>
 574         </body>
 575 </html>