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