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