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                 // Description for this website
  24                 'description' => '',
  25
  26                 // Base path (auto-detection)
  27                 'base_path' => dirname(__FILE__) . DIRECTORY_SEPARATOR,
  28
  29                 // Directory to store uploaded files (relative to base_path)
  30                 'uploaddir' => '.',
  31
  32                 // Display list uploaded files
  33                 'listfiles' => true,
  34
  35                 // Allow users to delete files that they have uploaded (will enable sessions)
  36                 'allow_deletion' => true,
  37
  38                 // Allow users to mark files as hidden
  39                 'allow_private' => true,
  40
  41                 // Display file sizes
  42                 'listfiles_size' => true,
  43
  44                 // Display file dates
  45                 'listfiles_date' => true,
  46
  47                 // Display file dates format
  48                 'listfiles_date_format' => 'F d Y H:i:s',
  49
  50                 // Randomize file names (number of 'false')
  51                 'random_name_len' => 8,
  52
  53                 // Keep filetype information (if random name is activated)
  54                 'random_name_keep_type' => true,
  55
  56                 // Random file name letters
  57                 'random_name_alphabet' => 'qazwsxedcrfvtgbyhnujmikolp1234567890',
  58
  59                 // Add original name (but cleaned) to file name if random file name feature is enabled?
  60                 'suffix_original_name' => false,
  61
  62                 // Display debugging information
  63                 'debug' => false,
  64
  65                 // Complete URL to your directory (including tracing slash, leave for auto-detection)
  66                 'url' => detectServerUrl(),
  67
  68                 // Amount of seconds that each file should be stored for (0 for no limit)
  69                 // Default 30 days
  70                 'time_limit' => 60 * 60 * 24 * 30,
  71
  72                 // Files that will be ignored
  73                 'ignores' => array('.', '..', 'LICENSE', 'README.md'),
  74
  75                 // Language code
  76                 'lang' => 'en',
  77
  78                 // Language direction
  79                 'lang_dir' => 'ltr',
  80
  81                 // Remove old files?
  82                 'remove_old_files' => true,
  83
  84                 // Privacy: Allow external references (the "fork me" ribbon)
  85                 'allow_external_refs' => true,
  86         );
  87         // =============={ Configuration End }==============
  88
  89         // Is the local config file there?
  90         if (isReadableFile('config-local.php')) {
  91                 // Load it then
  92                 include('config-local.php');
  93         }
  94
  95         // Enabling error reporting
  96         if ($settings['debug']) {
  97                 error_reporting(E_ALL);
  98                 ini_set('display_startup_errors',1);
  99                 ini_set('display_errors',1);
 100         }
 101
 102         $data = array();
 103
 104         // Name of this file
 105         $data['scriptname'] = $settings['url'] . pathinfo(__FILE__, PATHINFO_BASENAME);
 106
 107         // Adding current script name to ignore list
 108         $data['ignores'] = $settings['ignores'];
 109         $data['ignores'][] = basename($data['scriptname']);
 110
 111         // Use canonized path
 112         $data['uploaddir'] = realpath($settings['base_path'] . $settings['uploaddir']);
 113
 114         // Maximum upload size, set by system
 115         $data['max_upload_size'] = ini_get('upload_max_filesize');
 116
 117         // If file deletion or private files are allowed, starting a session.
 118         // This is required for user authentification
 119         if ($settings['allow_deletion'] || $settings['allow_private']) {
 120                 session_start();
 121
 122                 // 'User ID'
 123                 if (!isset($_SESSION['upload_user_id']))
 124                         $_SESSION['upload_user_id'] = mt_rand(100000, 999999);
 125
 126                 // List of filenames that were uploaded by this user
 127                 if (!isset($_SESSION['upload_user_files']))
 128                         $_SESSION['upload_user_files'] = array();
 129         }
 130
 131         // If debug is enabled, logging all variables
 132         if ($settings['debug']) {
 133                 // Displaying debug information
 134                 echo '<h2>Settings:</h2>';
 135                 echo '<pre>';
 136                 print_r($settings);
 137                 echo '</pre>';
 138
 139                 // Displaying debug information
 140                 echo '<h2>Data:</h2>';
 141                 echo '<pre>';
 142                 print_r($data);
 143                 echo '</pre>';
 144                 echo '</pre>';
 145
 146                 // Displaying debug information
 147                 echo '<h2>SESSION:</h2>';
 148                 echo '<pre>';
 149                 print_r($_SESSION);
 150                 echo '</pre>';
 151         }
 152
 153         // Format file size
 154         function formatSize ($bytes) {
 155                 $units = array('B', 'KB', 'MB', 'GB', 'TB');
 156
 157                 $bytes = max($bytes, 0);
 158                 $pow = floor(($bytes ? log($bytes) : 0) / log(1024));
 159                 $pow = min($pow, count($units) - 1);
 160
 161                 $bytes /= pow(1024, $pow);
 162
 163                 return ceil($bytes) . ' ' . $units[$pow];
 164         }
 165
 166         // Rotating a two-dimensional array
 167         function diverseArray ($vector) {
 168                 $result = array();
 169                 foreach ($vector as $key1 => $value1)
 170                         foreach ($value1 as $key2 => $value2)
 171                                 $result[$key2][$key1] = $value2;
 172                 return $result;
 173         }
 174
 175         // Handling file upload
 176         function uploadFile ($file_data) {
 177                 global $settings, $data;
 178
 179                 $file_data['uploaded_file_name'] = basename($file_data['name']);
 180                 $file_data['target_file_name'] = $file_data['uploaded_file_name'];
 181
 182                 // Generating random file name
 183                 if ($settings['random_name_len'] !== false) {
 184                         do {
 185                                 $file_data['target_file_name'] = '';
 186                                 while (strlen($file_data['target_file_name']) < $settings['random_name_len'])
 187                                         $file_data['target_file_name'] .= $settings['random_name_alphabet'][mt_rand(0, strlen($settings['random_name_alphabet']) - 1)];
 188                                 if ($settings['suffix_original_name'])
 189                                         $file_data['target_file_name'] .= '_' . preg_replace('/[^0-9a-zA-Z_-]/', '', pathinfo($file_data['uploaded_file_name'], PATHINFO_BASENAME));
 190                                 if ($settings['random_name_keep_type'])
 191                                         $file_data['target_file_name'] .= '.' . pathinfo($file_data['uploaded_file_name'], PATHINFO_EXTENSION);
 192                         } while (isReadableFile($file_data['target_file_name']));
 193                 }
 194                 $file_data['upload_target_file'] = $data['uploaddir'] . DIRECTORY_SEPARATOR . $file_data['target_file_name'];
 195
 196                 // Do now allow to overwriting files
 197                 if (isReadableFile($file_data['upload_target_file'])) {
 198                         echo 'File name already exists' . "\n";
 199                         return false;
 200                 }
 201
 202                 // Moving uploaded file OK
 203                 if (move_uploaded_file($file_data['tmp_name'], $file_data['upload_target_file'])) {
 204                         if ($settings['listfiles'] && ($settings['allow_deletion'] || $settings['allow_private']))
 205                                 $_SESSION['upload_user_files'][] = $file_data['target_file_name'];
 206                         echo $settings['url'] .  $file_data['target_file_name'] . "\n";
 207
 208                         // Return target file name for later handling
 209                         return $file_data['upload_target_file'];
 210                 } else {
 211                         echo 'Error: unable to upload the file.';
 212                         return false;
 213                 }
 214         }
 215
 216         // Delete file
 217         function deleteFile ($file) {
 218                 global $data;
 219
 220                 if (in_array(substr($file, 1), $_SESSION['upload_user_files']) || in_array($file, $_SESSION['upload_user_files'])) {
 221                         $fqfn = $data['uploaddir'] . DIRECTORY_SEPARATOR . $file;
 222                         if (!in_array($file, $data['ignores']) && isReadableFile($fqfn)) {
 223                                 unlink($fqfn);
 224                                 echo 'File has been removed';
 225                                 exit;
 226                         }
 227                 }
 228         }
 229
 230         // Mark/unmark file as hidden
 231         function markUnmarkHidden ($file) {
 232                 global $data;
 233
 234                 if (in_array(substr($file, 1), $_SESSION['upload_user_files']) || in_array($file, $_SESSION['upload_user_files'])) {
 235                         $fqfn = $data['uploaddir'] . DIRECTORY_SEPARATOR . $file;
 236                         if (!in_array($file, $data['ignores']) && isReadableFile($fqfn)) {
 237                                 if (substr($file, 0, 1) === '.') {
 238                                         rename($fqfn, substr($fqfn, 1));
 239                                         echo 'File has been made visible';
 240                                 } else {
 241                                         rename($fqfn, $data['uploaddir'] . DIRECTORY_SEPARATOR . '.' . $file);
 242                                         echo 'File has been hidden';
 243                                 }
 244                                 exit;
 245                         }
 246                 }
 247         }
 248
 249         // Checks if the given file is a file and is readable
 250         function isReadableFile ($file) {
 251                 return (is_file($file) && is_readable($file));
 252         }
 253
 254         // Detects full URL of installation
 255         function detectServerUrl () {
 256                 // Is "cache" there?
 257                 if (!isset($GLOBALS[__FUNCTION__])) {
 258                         // Default protocol is HTTP
 259                         $protocol = 'http';
 260
 261                         // Is SSL given?
 262                         if (((isset($_SERVER['HTTPS'])) && (strtolower($_SERVER['HTTPS']) == 'on')) || ((isset($_SERVER['HTTP_X_FORWARDED_PROTO'])) && (strtolower($_SERVER['HTTP_X_FORWARDED_PROTO']) == 'https'))) {
 263                                 // Protocol is HTTPS
 264                                 $protocol = 'https';
 265                         } // END - if
 266
 267                         // Construct full URL
 268                         $GLOBALS[__FUNCTION__] = str_replace("\\", '', sprintf('%s://%s%s/', $protocol, $_SERVER['SERVER_NAME'], dirname($_SERVER['SCRIPT_NAME'])));
 269                 } // END - if
 270
 271                 // Return cached value
 272                 return $GLOBALS[__FUNCTION__];
 273         }
 274
 275         // Files are being POSEed. Uploading them one by one.
 276         if (isset($_FILES['file'])) {
 277                 header('Content-type: text/plain');
 278                 if (is_array($_FILES['file'])) {
 279                         $file_array = diverseArray($_FILES['file']);
 280                         foreach ($file_array as $file_data) {
 281                                 $targetFile = uploadFile($file_data);
 282                         }
 283                 } else {
 284                         $targetFile = uploadFile($_FILES['file']);
 285                 }
 286                 exit;
 287         }
 288
 289         // Other file functions (delete, private).
 290         if (isset($_POST)) {
 291                 if ($settings['allow_deletion'] && (isset($_POST['target'])) && isset($_POST['action']) && $_POST['action'] === 'delete')
 292                         deleteFile($_POST['target']);
 293
 294                 if ($settings['allow_private'] && (isset($_POST['target'])) && isset($_POST['action']) && $_POST['action'] === 'privatetoggle')
 295                         markUnmarkHidden($_POST['target']);
 296         }
 297
 298         // List files in a given directory, excluding certain files
 299         function createArrayFromPath ($dir) {
 300                 global $data;
 301
 302                 $file_array = array();
 303
 304                 $dh = opendir($dir);
 305
 306                 while ($filename = readdir($dh)) {
 307                         $fqfn = $dir . DIRECTORY_SEPARATOR . $filename;
 308                         if (isReadableFile($fqfn) && !in_array($filename, $data['ignores']))
 309                                 $file_array[filemtime($fqfn)] = $filename;
 310                 }
 311
 312                 ksort($file_array);
 313
 314                 $file_array = array_reverse($file_array, true);
 315
 316                 return $file_array;
 317         }
 318
 319         // Removes old files
 320         function removeOldFiles ($dir) {
 321                 global $file_array, $settings;
 322
 323                 foreach ($file_array as $file) {
 324                         $fqfn = $dir . DIRECTORY_SEPARATOR . $file;
 325                         if ($settings['time_limit'] < time() - filemtime($fqfn))
 326                                 unlink($fqfn);
 327                 }
 328         }
 329
 330         // Only read files if the feature is enabled
 331         if ($settings['listfiles']) {
 332                 $file_array = createArrayFromPath($data['uploaddir']);
 333
 334                 // Removing old files
 335                 if ($settings['remove_old_files'])
 336                         removeOldFiles($data['uploaddir']);
 337
 338                 $file_array = createArrayFromPath($data['uploaddir']);
 339         }
 340 ?>
 341 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
 342 <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="<?=$settings['lang']?>" lang="<?=$settings['lang']?>" dir="<?=$settings['lang_dir']?>">
 343         <head>
 344                 <meta http-equiv="content-type" content="text/html;charset=UTF-8" />
 345                 <meta http-equiv="content-style-type" content="text/css" />
 346                 <meta http-equiv="content-script-type" content="text/javascript" />
 347                 <meta http-equiv="language" content="de" />
 348
 349                 <meta name="robots" content="noindex" />
 350                 <meta name="referrer" content="origin-when-crossorigin" />
 351                 <title><?=$settings['title']?></title>
 352                 <style type="text/css" media="screen">
 353                         body {
 354                                 background: #111;
 355                                 margin: 0;
 356                                 color: #ddd;
 357                                 font-family: sans-serif;
 358                         }
 359
 360                         body > h1 {
 361                                 display: block;
 362                                 background: rgba(255, 255, 255, 0.05);
 363                                 padding: 8px 16px;
 364                                 text-align: center;
 365                                 margin: 0;
 366                         }
 367
 368                         body > form {
 369                                 display: block;
 370                                 background: rgba(255, 255, 255, 0.075);
 371                                 padding: 16px 16px;
 372                                 margin: 0;
 373                                 text-align: center;
 374                         }
 375
 376                         body > ul {
 377                                 display: block;
 378                                 padding: 0;
 379                                 max-width: 1000px;
 380                                 margin: 32px auto;
 381                         }
 382
 383                         body > ul > li {
 384                                 display: block;
 385                                 margin: 0;
 386                                 padding: 0;
 387                         }
 388
 389                         body > ul > li > a {
 390                                 display: block;
 391                                 margin: 0 0 1px 0;
 392                                 list-style: none;
 393                                 background: rgba(255, 255, 255, 0.1);
 394                                 padding: 8px 16px;
 395                                 text-decoration: none;
 396                                 color: inherit;
 397                                 opacity: 0.5;
 398                         }
 399
 400                         body > ul > li > a:hover {
 401                                 opacity: 1;
 402                         }
 403
 404                         body > ul > li > a:active {
 405                                 opacity: 0.5;
 406                         }
 407
 408                         body > ul > li > a > span {
 409                                 float: right;
 410                                 font-size: 90%;
 411                         }
 412
 413                         body > ul > li > form {
 414                                 display: inline-block;
 415                                 padding: 0;
 416                                 margin: 0;
 417                         }
 418
 419                         body > ul > li.owned {
 420                                 margin: 8px;
 421                         }
 422
 423                         body > ul > li > form > button {
 424                                 opacity: 0.5;
 425                                 display: inline-block;
 426                                 padding: 4px 16px;
 427                                 margin: 0;
 428                                 border: 0;
 429                                 background: rgba(255, 255, 255, 0.1);
 430                                 color: inherit;
 431                         }
 432
 433                         body > ul > li > form > button:hover {
 434                                 opacity: 1;
 435                         }
 436
 437                         body > ul > li > form > button:active {
 438                                 opacity: 0.5;
 439                         }
 440
 441                         body > ul > li.uploading {
 442                                 animation: upanim 2s linear 0s infinite alternate;
 443                         }
 444
 445                         @keyframes upanim {
 446                                 from {
 447                                         opacity: 0.3;
 448                                 }
 449                                 to {
 450                                         opacity: 0.8;
 451                                 }
 452                         }
 453                 </style>
 454         </head>
 455         <body>
 456                 <h1><?=$settings['title']?></h1>
 457                 <p><?=$settings['description']?></p>
 458                 <form action="<?= $data['scriptname'] ?>" method="post" enctype="multipart/form-data" class="dropzone" id="simpleupload-form">
 459                         Maximum upload size: <?php echo $data['max_upload_size']; ?><br />
 460                         <input type="file" name="file[]" id="simpleupload-input" />
 461                 </form>
 462                 <?php if ($settings['listfiles']) { ?>
 463                         <ul id="simpleupload-ul">
 464                                 <?php
 465                                         foreach ($file_array as $mtime => $filename) {
 466                                                 $fqfn = $data['uploaddir'] . DIRECTORY_SEPARATOR . $filename;
 467                                                 $file_info = array();
 468                                                 $file_owner = false;
 469                                                 $file_private = $filename[0] === '.';
 470
 471                                                 if ($settings['listfiles_size'])
 472                                                         $file_info[] = formatSize(filesize($fqfn));
 473
 474                                                 if ($settings['listfiles_size'])
 475                                                         $file_info[] = date($settings['listfiles_date_format'], $mtime);
 476
 477                                                 if ($settings['allow_deletion'] || $settings['allow_private'])
 478                                                         if (in_array(substr($filename, 1), $_SESSION['upload_user_files']) || in_array($filename, $_SESSION['upload_user_files']))
 479                                                                 $file_owner = true;
 480
 481                                                 $file_info = implode(', ', $file_info);
 482
 483                                                 if (strlen($file_info) > 0)
 484                                                         $file_info = ' (' . $file_info . ')';
 485
 486                                                 $class = '';
 487                                                 if ($file_owner)
 488                                                         $class = 'owned';
 489
 490                                                 if (!$file_private || $file_owner) {
 491                                                         echo "<li class=\"' . $class . '\">";
 492
 493                                                         // Create full-qualified URL and clean it a bit
 494                                                         $url = str_replace('/./', '/', sprintf('%s%s/%s', $settings['url'], $settings['uploaddir'], $filename));
 495
 496                                                         echo "<a href=\"$url\" target=\"_blank\">$filename<span>$file_info</span></a>";
 497
 498                                                         if ($file_owner) {
 499                                                                 if ($settings['allow_deletion'])
 500                                                                         echo '<form action="' . $data['scriptname'] . '" method="post"><input type="hidden" name="target" value="' . $filename . '" /><input type="hidden" name="action" value="delete" /><button type="submit">delete</button></form>';
 501
 502                                                                 if ($settings['allow_private'])
 503                                                                         if ($file_private)
 504                                                                                 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>';
 505                                                                         else
 506                                                                                 echo '<form action="' . $data['scriptname'] . '" method="post"><input type="hidden" name="target" value="' . $filename . '" /><input type="hidden" name="action" value="privatetoggle" /><button type="submit">make private</button></form>';
 507                                                         }
 508
 509                                                         echo "</li>";
 510                                                 }
 511                                         }
 512                                 ?>
 513                         </ul>
 514                 <?php
 515                 }
 516
 517                 if ($settings['allow_external_refs']) {
 518                 ?>
 519                         <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>
 520                 <?php
 521                 } else {
 522                 ?>
 523                         <a href="https://github.com/muchweb/simple-php-upload" target="_blank">Fork me on GitHub</a>
 524                 <?php
 525                 }
 526                 ?>
 527                 <script type="text/javascript">
 528                 <!--
 529                         // Init some variales to shorten code
 530                         var target_form        = document.getElementById('simpleupload-form');
 531                         var target_ul          = document.getElementById('simpleupload-ul');
 532                         var target_input       = document.getElementById('simpleupload-input');
 533                         var settings_listfiles = <?=($settings['listfiles'] ? 'true' : 'false')?>;
 534
 535                         /**
 536                          * Initializes the upload form
 537                          */
 538                         function init () {
 539                                 // Register drag-over event listener
 540                                 target_form.addEventListener('dragover', function (event) {
 541                                         event.preventDefault();
 542                                 }, false);
 543
 544                                 // ... and the drop event listener
 545                                 target_form.addEventListener('drop', handleFiles, false);
 546
 547                                 // Register onchange-event function
 548                                 target_input.onchange = function () {
 549                                         addFileLi('Uploading...', '');
 550                                         target_form.submit();
 551                                 };
 552                         }
 553
 554                         /**
 555                          * Adds given file in a new li-tag to target_ul list
 556                          *
 557                          * @param name Name of the file
 558                          * @param info Some more informations
 559                          */
 560                         function addFileLi (name, info) {
 561                                 if (settings_listfiles == false) {
 562                                         return;
 563                                 }
 564
 565                                 target_form.style.display = 'none';
 566
 567                                 var new_li = document.createElement('li');
 568                                 new_li.className = 'uploading';
 569
 570                                 var new_a = document.createElement('a');
 571                                 new_a.innerHTML = name;
 572                                 new_li.appendChild(new_a);
 573
 574                                 var new_span = document.createElement('span');
 575                                 new_span.innerHTML = info;
 576                                 new_a.appendChild(new_span);
 577
 578                                 target_ul.insertBefore(new_li, target_ul.firstChild);
 579                         }
 580
 581                         /**
 582                          * Handles given event for file upload
 583                          *
 584                          * @param event Event to handle file upload for
 585                          */
 586                         function handleFiles (event) {
 587                                 event.preventDefault();
 588
 589                                 var files = event.dataTransfer.files;
 590
 591                                 var form = new FormData();
 592
 593                                 for (var i = 0; i < files.length; i++) {
 594                                         form.append('file[]', files[i]);
 595                                         addFileLi(files[i].name, files[i].size + ' bytes');
 596                                 }
 597
 598                                 var xhr = new XMLHttpRequest();
 599                                 xhr.onload = function() {
 600                                         window.location.reload();
 601                                 };
 602
 603                                 xhr.open('post', '<?php echo $data['scriptname']; ?>', true);
 604                                 xhr.send(form);
 605                         }
 606
 607                         // Initialize upload form
 608                         init();
 609
 610                 //-->
 611                 </script>
 612         </body>
 613 </html>