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                 time_limit => 0,
  61
  62                 // Files that will be ignored
  63                 ignores = array('.', '..', 'LICENSE', 'README.md'),
  64         );
  65         // =============={ Configuration End }==============
  66
  67         $data = array();
  68
  69         // Name of this file
  70         $data['scriptname'] = pathinfo(__FILE__, PATHINFO_BASENAME);
  71
  72         // Adding current script name to ignore list
  73         $data['ignores'][] = $data['scriptname'];
  74
  75         // Use canonized path
  76         $data['uploaddir'] = realpath($settings['uploaddir']);
  77
  78         // Maximum upload size, set by system
  79         $data['max_upload_size'] = ini_get('upload_max_filesize');
  80
  81         // If file deletion or private files are allowed, starting a session.
  82         // This is required for user authentification
  83         if ($settings['allow_deletion'] || $settings['allow_private']) {
  84                 session_start();
  85
  86                 // 'User ID'
  87                 if (!isset($_SESSION['upload_user_id']))
  88                         $_SESSION['upload_user_id'] = rand(100000, 999999);
  89
  90                 // List of filenames that were uploaded by this user
  91                 if (!isset($_SESSION['upload_user_files']))
  92                         $_SESSION['upload_user_files'] = array();
  93         }
  94
  95         // If debug is enabled, logging all variables
  96         if ($settings['debug']) {
  97
  98                 // Enabling error reporting
  99                 error_reporting(E_ALL);
 100                 error_reporting(1);
 101
 102                 // Displaying debug information
 103                 echo '<h2>Settings:</h2>';
 104                 echo '<pre>';
 105                 print_r($settings);
 106                 echo '</pre>';
 107
 108                 // Displaying debug information
 109                 echo '<h2>Data:</h2>';
 110                 echo '<pre>';
 111                 print_r($data);
 112                 echo '</pre>';
 113                 echo '</pre>';
 114
 115                 // Displaying debug information
 116                 echo '<h2>SESSION:</h2>';
 117                 echo '<pre>';
 118                 print_r($_SESSION);
 119                 echo '</pre>';
 120         }
 121
 122         // Format file size
 123         function FormatSize ($bytes) {
 124                 $units = array('B', 'KB', 'MB', 'GB', 'TB');
 125
 126                 $bytes = max($bytes, 0);
 127                 $pow = floor(($bytes ? log($bytes) : 0) / log(1024));
 128                 $pow = min($pow, count($units) - 1);
 129
 130                 $bytes /= pow(1024, $pow);
 131
 132                 return ceil($bytes) . ' ' . $units[$pow];
 133         }
 134
 135         // Rotating a two-dimensional array
 136         function DiverseArray ($vector) {
 137                 $result = array();
 138                 foreach ($vector as $key1 => $value1)
 139                         foreach ($value1 as $key2 => $value2)
 140                                 $result[$key2][$key1] = $value2;
 141                 return $result;
 142         }
 143
 144         // Handling file upload
 145         function UploadFile ($file_data) {
 146                 global $settings;
 147                 global $data;
 148                 global $_SESSION;
 149
 150                 $data['uploaded_file_name'] = basename($file_data['name']);
 151                 $data['target_file_name'] = $file_data['uploaded_file_name'];
 152
 153                 // Generating random file name
 154                 if ($settings['random_name_len'] !== false) {
 155                         do {
 156                                 $data['target_file_name'] = '';
 157                                 while (strlen($data['target_file_name']) < $settings['random_name_len'])
 158                                         $data['target_file_name'] .= $settings['random_name_alphabet'][rand(0, strlen($settings['random_name_alphabet']) - 1)];
 159                                 if ($settings['random_name_keep_type'])
 160                                         $data['target_file_name'] .= '.' . pathinfo($data['uploaded_file_name'], PATHINFO_EXTENSION);
 161                         } while (file_exists($data['target_file_name']));
 162                 }
 163                 $data['upload_target_file'] = $data['uploaddir'] . DIRECTORY_SEPARATOR . $data['target_file_name'];
 164
 165                 // Do now allow to overwriting files
 166                 if (file_exists($data['upload_target_file'])) {
 167                         echo 'File name already exists' . "\n";
 168                         return;
 169                 }
 170
 171                 // Moving uploaded file OK
 172                 if (move_uploaded_file($file_data['tmp_name'], $data['upload_target_file'])) {
 173                         if ($settings['allow_deletion'] || $settings['allow_private'])
 174                                 $_SESSION['upload_user_files'][] = $data['target_file_name'];
 175                         echo $settings['url'] .  $data['target_file_name'] . "\n";
 176                 } else {
 177                         echo 'Error: unable to upload the file.';
 178                 }
 179         }
 180
 181
 182         // Files are being POSEed. Uploading them one by one.
 183         if (isset($_FILES['file'])) {
 184                 header('Content-type: text/plain');
 185                 if (is_array($_FILES['file'])) {
 186                         $file_array = DiverseArray($_FILES['file']);
 187                         foreach ($file_array as $file_data)
 188                                 UploadFile($file_data);
 189                 } else
 190                         UploadFile($_FILES['file']);
 191                 exit;
 192         }
 193
 194         // Other file functions (delete, private).
 195         if (isset($_POST)) {
 196                 if ($settings['allow_deletion'])
 197                         if ($_POST['action'] === 'delete')
 198                                 if (in_array(substr($_POST['target'], 1), $_SESSION['upload_user_files']) || in_array($_POST['target'], $_SESSION['upload_user_files']))
 199                                         if (file_exists($_POST['target'])) {
 200                                                 unlink($_POST['target']);
 201                                                 echo 'File has been removed';
 202                                                 exit;
 203                                         }
 204
 205                 if ($settings['allow_private'])
 206                         if ($_POST['action'] === 'privatetoggle')
 207                                 if (in_array(substr($_POST['target'], 1), $_SESSION['upload_user_files']) || in_array($_POST['target'], $_SESSION['upload_user_files']))
 208                                         if (file_exists($_POST['target'])) {
 209                                                 if ($_POST['target'][0] === '.') {
 210                                                         rename($_POST['target'], substr($_POST['target'], 1));
 211                                                         echo 'File has been made visible';
 212                                                 } else {
 213                                                         rename($_POST['target'], '.' . $_POST['target']);
 214                                                         echo 'File has been hidden';
 215                                                 }
 216                                                 exit;
 217                                         }
 218         }
 219
 220         // List files in a given directory, excluding certain files
 221         function ListFiles ($dir, $exclude) {
 222                 $file_array = array();
 223                 $dh = opendir($dir);
 224                         while (false !== ($filename = readdir($dh)))
 225                                 if (is_file($filename) && !in_array($filename, $exclude))
 226                                         $file_array[filemtime($filename)] = $filename;
 227                 ksort($file_array);
 228                 $file_array = array_reverse($file_array, true);
 229                 return $file_array;
 230         }
 231
 232 ?>
 233 <html lang="en-GB">
 234         <head>
 235                 <meta charset="utf-8">
 236                 <title><?=$settings['title']?></title>
 237                 <style media="screen">
 238                         body {
 239                                 background: #111;
 240                                 margin: 0;
 241                                 color: #ddd;
 242                                 font-family: sans-serif;
 243                         }
 244
 245                         body > h1 {
 246                                 display: block;
 247                                 background: rgba(255, 255, 255, 0.05);
 248                                 padding: 8px 16px;
 249                                 text-align: center;
 250                                 margin: 0;
 251                         }
 252
 253                         body > form {
 254                                 display: block;
 255                                 background: rgba(255, 255, 255, 0.075);
 256                                 padding: 16px 16px;
 257                                 margin: 0;
 258                                 text-align: center;
 259                         }
 260
 261                         body > ul {
 262                                 display: block;
 263                                 padding: 0;
 264                                 max-width: 1000px;
 265                                 margin: 32px auto;
 266                         }
 267
 268                         body > ul > li {
 269                                 display: block;
 270                                 margin: 0;
 271                                 padding: 0;
 272                         }
 273
 274                         body > ul > li > a {
 275                                 display: block;
 276                                 margin: 0 0 1px 0;
 277                                 list-style: none;
 278                                 background: rgba(255, 255, 255, 0.1);
 279                                 padding: 8px 16px;
 280                                 text-decoration: none;
 281                                 color: inherit;
 282                                 opacity: 0.5;
 283                         }
 284
 285                         body > ul > li > a:hover {
 286                                 opacity: 1;
 287                         }
 288
 289                         body > ul > li > a:active {
 290                                 opacity: 0.5;
 291                         }
 292
 293                         body > ul > li > a > span {
 294                                 float: right;
 295                                 font-size: 90%;
 296                         }
 297
 298                         body > ul > li > form {
 299                                 display: inline-block;
 300                                 padding: 0;
 301                                 margin: 0;
 302                         }
 303
 304                         body > ul > li.owned {
 305                                 margin: 8px;
 306                         }
 307
 308                         body > ul > li > form > button {
 309                                 opacity: 0.5;
 310                                 display: inline-block;
 311                                 padding: 4px 16px;
 312                                 margin: 0;
 313                                 border: 0;
 314                                 background: rgba(255, 255, 255, 0.1);
 315                                 color: inherit;
 316                         }
 317
 318                         body > ul > li > form > button:hover {
 319                                 opacity: 1;
 320                         }
 321
 322                         body > ul > li > form > button:active {
 323                                 opacity: 0.5;
 324                         }
 325
 326                         body > ul > li.uploading {
 327                                 animation: upanim 2s linear 0s infinite alternate;
 328                         }
 329
 330                         @keyframes upanim {
 331                                 from {
 332                                         opacity: 0.3;
 333                                 }
 334                                 to {
 335                                         opacity: 0.8;
 336                                 }
 337                         }
 338                 </style>
 339         </head>
 340         <body>
 341                 <h1><?=$settings['title']?></h1>
 342                 <form action="<?= $data['scriptname'] ?>" method="POST" enctype="multipart/form-data" class="dropzone" id="simpleupload-form">
 343                         Maximum upload size: <?php echo $data['max_upload_size']; ?><br />
 344                         <input type="file" name="file[]" multiple required id="simpleupload-input"/>
 345                 </form>
 346                 <?php if ($settings['listfiles']) { ?>
 347                         <ul id="simpleupload-ul">
 348                                 <?php
 349                                         $file_array = ListFiles($settings['uploaddir'], $data['ignores']);
 350                                         foreach ($file_array as $mtime => $filename) {
 351                                                 $file_info = array();
 352                                                 $file_owner = false;
 353                                                 $file_private = $filename[0] === '.';
 354
 355                                                 if ($settings['listfiles_size'])
 356                                                         $file_info[] = FormatSize(filesize($filename));
 357
 358                                                 if ($settings['listfiles_size'])
 359                                                         $file_info[] = date($settings['listfiles_date_format'], $mtime);
 360
 361                                                 if ($settings['allow_deletion'] || $settings['allow_private'])
 362                                                         if (in_array(substr($filename, 1), $_SESSION['upload_user_files']) || in_array($filename, $_SESSION['upload_user_files']))
 363                                                                 $file_owner = true;
 364
 365                                                 $file_info = implode(', ', $file_info);
 366
 367                                                 if (strlen($file_info) > 0)
 368                                                         $file_info = ' (' . $file_info . ')';
 369
 370                                                 $class = '';
 371                                                 if ($file_owner)
 372                                                         $class = 'owned';
 373
 374                                                 if (!$file_private || $file_owner) {
 375                                                         echo "<li class=\"' . $class . '\">";
 376
 377                                                         echo "<a href=\"$filename\" target=\"_blank\">$filename<span>$file_info</span></a>";
 378
 379                                                         if ($file_owner) {
 380                                                                 if ($settings['allow_deletion'])
 381                                                                         echo '<form action="' . $data['scriptname'] . '" method="POST"><input type="hidden" name="target" value="' . $filename . '" /><input type="hidden" name="action" value="delete" /><button type="submit">delete</button></form>';
 382
 383                                                                 if ($settings['allow_private'])
 384                                                                         if ($file_private)
 385                                                                                 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>';
 386                                                                         else
 387                                                                                 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>';
 388                                                         }
 389
 390                                                         echo "</li>";
 391                                                 }
 392                                         }
 393                                 ?>
 394                         </ul>
 395                 <?php } ?>
 396                 <a href="https://github.com/muchweb/simple-php-upload"><img style="position: absolute; top: 0; right: 0; border: 0;" src="https://camo.githubusercontent.com/38ef81f8aca64bb9a64448d0d70f1308ef5341ab/68747470733a2f2f73332e616d617a6f6e6177732e636f6d2f6769746875622f726962626f6e732f666f726b6d655f72696768745f6461726b626c75655f3132313632312e706e67" alt="Fork me on GitHub" data-canonical-src="https://s3.amazonaws.com/github/ribbons/forkme_right_darkblue_121621.png"></a>
 397                 <script charset="utf-8">
 398                         var target_form = document.getElementById('simpleupload-form'),
 399                                 target_ul = document.getElementById('simpleupload-ul'),
 400                                 target_input = document.getElementById('simpleupload-input');
 401
 402                         target_form.addEventListener('dragover', function (event) {
 403                                 event.preventDefault();
 404                         }, false);
 405
 406                         function AddFileLi (name, info) {
 407                                 target_form.style.display = 'none';
 408
 409                                 var new_li = document.createElement('li');
 410                                 new_li.className = 'uploading';
 411
 412                                 var new_a = document.createElement('a');
 413                                 new_a.innerHTML = name;
 414                                 new_li.appendChild(new_a);
 415
 416                                 var new_span = document.createElement('span');
 417                                 new_span.innerHTML = info;
 418                                 new_a.appendChild(new_span);
 419
 420                                 target_ul.insertBefore(new_li, target_ul.firstChild);
 421                         }
 422
 423                         function HandleFiles (event) {
 424                                 event.preventDefault();
 425
 426                                 var i = 0,
 427                                         files = event.dataTransfer.files,
 428                                         len = files.length;
 429
 430                                 var form = new FormData();
 431
 432                                 for (; i < len; i++) {
 433                                         form.append('file[]', files[i]);
 434                                         AddFileLi(files[i].name, files[i].size + ' bytes');
 435                                 }
 436
 437                                 var xhr = new XMLHttpRequest();
 438                                 xhr.onload = function() {
 439                                         window.location.reload();
 440                                 };
 441
 442                                 xhr.open('post', '<?php echo $data['scriptname']; ?>', true);
 443                                 xhr.send(form);
 444                         }
 445
 446                         target_form.addEventListener('drop', HandleFiles, false);
 447
 448                         document.getElementById('simpleupload-input').onchange = function () {
 449                                 AddFileLi('Uploading...', '');
 450                                 target_form.submit();
 451                         };
 452                 </script>
 453         </body>
 454 </html>