script.php

   1 <?php
   2 /*
   3  *  Jirafeau, your web file repository
   4  *  Copyright (C) 2012  Jerome Jutteau <j.jutteau@gmail.com>
   5  *
   6  *  This program is free software: you can redistribute it and/or modify
   7  *  it under the terms of the GNU Affero General Public License as
   8  *  published by the Free Software Foundation, either version 3 of the
   9  *  License, or (at your option) any later version.
  10  *
  11  *  This program is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *  GNU Affero General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU Affero General Public License
  17  *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 /*
  21  * This file permits to easyly script file sending, receiving, deleting, ...
  22  * If you don't want this feature, you can simply delete this file from your
  23  * web directory.
  24  */
  25
  26 define ('JIRAFEAU_ROOT', dirname (__FILE__) . '/');
  27
  28 require (JIRAFEAU_ROOT . 'lib/config.original.php');
  29 require (JIRAFEAU_ROOT . 'lib/settings.php');
  30 require (JIRAFEAU_ROOT . 'lib/functions.php');
  31 require (JIRAFEAU_ROOT . 'lib/lang.php');
  32
  33  global $script_langages;
  34  $script_langages = array ('bash' => 'Bash');
  35
  36 /* Operations may take a long time.
  37  * Be sure PHP's safe mode is off.
  38  */
  39 @set_time_limit(0);
  40 /* Remove errors. */
  41 @error_reporting(0);
  42
  43 if ($_SERVER['REQUEST_METHOD'] == "GET" && count ($_GET) == 0)
  44 {
  45     require (JIRAFEAU_ROOT . 'lib/template/header.php');
  46     check_errors ();
  47     if (has_error ())
  48     {
  49         show_errors ();
  50         require (JIRAFEAU_ROOT . 'lib/template/footer.php');
  51         exit;
  52     }
  53     echo '<div class="info">';
  54     echo '<h2>' . t('Welcome to Jirafeau\'s query interface') . '</h2>';
  55     echo '<p>';
  56     echo t('This interface permits to script your uploads and downloads.') .
  57             ' ' . t('The instructions above show how to query this interface.');
  58     echo '</p>';
  59
  60     echo '<h3>' . t('Get Jirafeau\'s version') . ':</h3>';
  61     echo '<p>';
  62     echo t('Send a GET query to') . ': <i>' . $web_root . 'script.php</i><br />';
  63     echo '<br />';
  64     echo t('Parameters') . ':<br />';
  65     echo "<b>get_version=</b>1<i> (" . t('Required') . ")</i> <br />";
  66     echo '</p>';
  67     echo '<p>' . t('This will return brut text content.') . ' ' .
  68             t('First line is the version number.') . '<br /></p>';
  69     echo '<p>';
  70     echo t('Example') . ": <a href=\"" . $web_root . "script.php?get_version=1\">" . $web_root . "script.php?get_version=1</a> ";
  71     echo '</p>';
  72
  73     echo '<h3>' . t('Get server capacity') . ':</h3>';
  74     echo '<p>';
  75     echo t('Send a GET query to') . ': <i>' . $web_root . 'script.php</i><br />';
  76     echo '<br />';
  77     echo t('Parameters') . ':<br />';
  78     echo "<b>get_capacity=</b>1<i> (" . t('Required') . ")</i> <br />";
  79     echo '</p>';
  80     echo '<p>' . t('This will return brut text content.') . ' ' .
  81             t('First line is the server capacity (in Bytes).') . '<br /></p>';
  82     echo '<p>';
  83     echo t('Example') . ": <a href=\"" . $web_root . "script.php?get_capacity=1\">" . $web_root . "script.php?get_capacity=1</a> ";
  84     echo '</p>';
  85
  86     echo '<h3>' . t('Upload a file') . ':</h3>';
  87     echo '<p>';
  88     echo t('Send a POST query to') . ': <i>' . $web_root . 'script.php</i><br />';
  89     echo '<br />';
  90     echo t('Parameters') . ':<br />';
  91     echo "<b>file=</b>C:\\your\\file\\path<i> (" . t('Required') . ")</i> <br />";
  92     echo "<b>time=</b>[minute|hour|day|week|month|none]<i> (" . t('Optional') . ', '. t('default: none') . ")</i> <br />";
  93     echo "<b>password=</b>your_password<i> (" . t('Optional') . ")</i> <br />";
  94     echo "<b>one_time_download=</b>1<i> (" . t('Optional') . ")</i> <br />";
  95     echo '</p>';
  96     echo '<p>' . t('This will return brut text content.') . ' ' .
  97          t('First line is the download reference and the second line the delete code.') . '<br /></p>';
  98
  99     echo '<h3>' . t('Get a file') . ':</h3>';
 100     echo '<p>';
 101     echo t('Send a GET query to') . ': <i>' . $web_root . 'script.php</i><br />';
 102     echo '<br />';
 103     echo t('Parameters') . ':<br />';
 104     echo "<b>h=</b>your_download_reference<i> (" . t('Required') . ")</i> <br />";
 105     echo '</p>';
 106     echo '<p>';
 107     echo t('If a password has been set, send a POST request with it.');
 108     echo '<br />';
 109     echo t('Parameters') . ':<br />';
 110     echo "<b>password=</b>your_password<i> (" . t('Optional') . ")</i> <br />";
 111     echo '</p>';
 112     echo '<p>';
 113     echo t('Example') . ": <a href=\"" . $web_root . "script.php?h=30ngy0hsDcpfrF8zR7x9iU\">" . $web_root . "script.php?h=30ngy0hsDcpfrF8zR7x9iU</a> ";
 114     echo '</p>';
 115
 116     echo '<h3>' . t('Delete a file') . ':</h3>';
 117     echo '<p>';
 118     echo t('Send a GET query to') . ': <i>' . $web_root . 'script.php</i><br />';
 119     echo '<br />';
 120     echo t('Parameters') . ':<br />';
 121     echo "<b>h=</b>your_download_reference<i> (" . t('Required') . ")</i> <br />";
 122     echo "<b>d=</b>yout_delete_code<i> (" . t('Required') . ")</i> <br />";
 123     echo '</p>';
 124     echo '<p>' . t('This will return "Ok" if succeded, "Error" otherwhise.') . '<br /></p>';
 125     echo '<p>';
 126     echo t('Example') . ": <a href=\"" . $web_root . "script.php?h=30ngy0hsDcpfrF8zR7x9iU&amp;d=0d210a952\">" . $web_root . "script.php?h=30ngy0hsDcpfrF8zR7x9iU&amp;d=0d210a952</a> ";
 127     echo '</p>';
 128
 129     echo '<h3>' . t('Get a generated scripts') . ':</h3>';
 130     echo '<p>';
 131     echo t('Send a GET query to') . ': <i>' . $web_root . 'script.php</i><br />';
 132     echo '<br />';
 133     echo t('Parameters') . ':<br />';
 134     echo "<b>lang=</b>[";
 135     foreach ($script_langages as $lang => $name)
 136         echo $lang;
 137     echo "]<i> (" . t('Required') . ")</i> <br />";
 138     echo '</p>';
 139     echo '<p>' . t('This will return brut text content of the code.') . '<br /></p>';
 140     echo '<p>';
 141     echo t('Example') . ": <br />";
 142     foreach ($script_langages as $lang => $name)
 143         echo "$name: <a href=\"" . $web_root . "script.php?lang=$lang\">" . $web_root . "script.php?lang=$lang</a> ";
 144     echo '</p>';
 145
 146     echo '<h3>' . t('Initalize a asynchronous transfert') . ':</h3>';
 147     echo '<p>';
 148     echo t('The goal is to permit to transfert big file, chunk by chunk.') . ' ';
 149     echo t('Chunks of data must be sent in order.');
 150     echo '</p>';
 151     echo '<p>';
 152     echo t('Send a GET query to') . ': <i>' . $web_root . 'script.php?init_async</i><br />';
 153     echo '<br />';
 154     echo t('Parameters') . ':<br />';
 155     echo "<b>filename=</b>file_name.ext<i> (" . t('Required') . ")</i> <br />";
 156     echo "<b>type=</b>MIME_TYPE<i> (" . t('Optional') . ")</i> <br />";
 157     echo "<b>time=</b>[minute|hour|day|week|month|none]<i> (" . t('Optional') . ', '. t('default: none') . ")</i> <br />";
 158     echo "<b>password=</b>your_password<i> (" . t('Optional') . ")</i> <br />";
 159     echo "<b>one_time_download=</b>1<i> (" . t('Optional') . ")</i> <br />";
 160     echo '</p>';
 161     echo '<p>' . t('This will return brut text content.') . ' ' .
 162          t('First line is the asynchronous transfert reference and the second line the code to use in the next operation.') . '<br /></p>';
 163
 164     echo '<h3>' . t('Push data during asynchronous transfert') . ':</h3>';
 165     echo '<p>';
 166     echo t('Send a GET query to') . ': <i>' . $web_root . 'script.php?push_async</i><br />';
 167     echo '<br />';
 168     echo t('Parameters') . ':<br />';
 169     echo "<b>ref=</b>async_reference<i> (" . t('Required') . ")</i> <br />";
 170     echo "<b>data=</b>data_chunk<i> (" . t('Required') . ")</i> <br />";
 171     echo "<b>code=</b>last_provided_code<i> (" . t('Required') . ")</i> <br />";
 172     echo '</p>';
 173     echo '<p>' . t('This will return brut text content.') . ' ' .
 174          t('Returns the next code to use.') . '<br /></p>';
 175
 176     echo '<h3>' . t('Finalize asynchronous transfert') . ':</h3>';
 177     echo '<p>';
 178     echo t('Send a GET query to') . ': <i>' . $web_root . 'script.php?end_async</i><br />';
 179     echo '<br />';
 180     echo t('Parameters') . ':<br />';
 181     echo "<b>ref=</b>async_reference<i> (" . t('Required') . ")</i> <br />";
 182     echo "<b>code=</b>last_provided_code<i> (" . t('Required') . ")</i> <br />";
 183     echo '</p>';
 184     echo '<p>' . t('This will return brut text content.') . ' ' .
 185          t('First line is the download reference and the second line the delete code.') . '<br /></p>';
 186
 187     if ($cfg['enable_blocks'])
 188     {
 189         echo '<h3>' . t('Create a data block') . ':</h3>';
 190         echo '<p>';
 191         echo t('This interface permits to create a block of data filled with zeros.') .
 192             ' ' . t('You can read selected parts, write (using a code) and delete the block.') .
 193             ' ' . t('Blocks may be removed after a month of non usage.');
 194         echo '</p>';
 195         echo '<p>';
 196         echo t('Send a GET query to') . ': <i>' . $web_root . 'script.php?init_block</i><br />';
 197         echo '<br />';
 198         echo t('Parameters') . ':<br />';
 199         echo "<b>size=</b>size_in_bytes<i> (" . t('Required') . ")</i> <br />";
 200         echo '</p>';
 201         echo '<p>' . t('This will return brut text content.') . ' ' .
 202              t('First line is a block id the second line the edit/delete code.') . '<br /></p>';
 203
 204         echo '<h3>' . t('Get block size') . ':</h3>';
 205         echo '<p>';
 206         echo t('Send a GET query to') . ': <i>' . $web_root . 'script.php?get_block_size</i><br />';
 207         echo '<br />';
 208         echo t('Parameters') . ':<br />';
 209         echo "<b>id=</b>block_id<i> (" . t('Required') . ")</i> <br />";
 210         echo '</p>';
 211         echo '<p>' . t('This will return asked data or "Error" string.') . '<br /></p>';
 212
 213         echo '<h3>' . t('Read data in a block') . ':</h3>';
 214         echo '<p>';
 215         echo t('Send a GET query to') . ': <i>' . $web_root . 'script.php?read_block</i><br />';
 216         echo '<br />';
 217         echo t('Parameters') . ':<br />';
 218         echo "<b>id=</b>block_id<i> (" . t('Required') . ")</i> <br />";
 219         echo "<b>start=</b>byte_position_starting_from_zero<i> (" . t('Required') . ")</i> <br />";
 220         echo "<b>length=</b>length_to_read_in_bytes<i> (" . t('Required') . ")</i> <br />";
 221         echo '</p>';
 222         echo '<p>' . t('This will return asked data or "Error" string.') . '<br /></p>';
 223
 224         echo '<h3>' . t('Write data in a block') . ':</h3>';
 225         echo '<p>';
 226         echo t('Send a GET query to') . ': <i>' . $web_root . 'script.php?write_block</i><br />';
 227         echo '<br />';
 228         echo t('Parameters') . ':<br />';
 229         echo "<b>id=</b>block_id<i> (" . t('Required') . ")</i> <br />";
 230         echo "<b>code=</b>block_code<i> (" . t('Required') . ")</i> <br />";
 231         echo "<b>start=</b>byte_position_starting_from_zero<i> (" . t('Required') . ")</i> <br />";
 232         echo "<b>data=</b>data_to_write<i> (" . t('Required') . ")</i> <br />";
 233         echo '</p>';
 234         echo '<p>' . t('This will return "Ok" or "Error" string.') . '<br /></p>';
 235
 236         echo '<h3>' . t('Delete a block') . ':</h3>';
 237         echo '<p>';
 238         echo t('Send a GET query to') . ': <i>' . $web_root . 'script.php?delete_block</i><br />';
 239         echo '<br />';
 240         echo t('Parameters') . ':<br />';
 241         echo "<b>id=</b>block_id<i> (" . t('Required') . ")</i> <br />";
 242         echo "<b>code=</b>block_code<i> (" . t('Required') . ")</i> <br />";
 243         echo '</p>';
 244         echo '<p>' . t('This will return "Ok" or "Error" string.') . '<br /></p>';
 245     }
 246
 247     echo '</div><br />';
 248     require (JIRAFEAU_ROOT . 'lib/template/footer.php');
 249     exit;
 250 }
 251
 252 /* Lets use interface now. */
 253 header('Content-Type: text; charset=utf-8');
 254
 255 check_errors ();
 256 if (has_error ())
 257 {
 258     echo "Error";
 259     exit;
 260 }
 261
 262 /* Upload file */
 263 if (isset ($_FILES['file']) && is_writable (VAR_FILES)
 264     && is_writable (VAR_LINKS))
 265 {
 266     $key = '';
 267     if (isset ($_POST['key']))
 268         $key = $_POST['key'];
 269
 270     $time = time ();
 271     if (!isset ($_POST['time']))
 272         $time = JIRAFEAU_INFINITY;
 273     else
 274         switch ($_POST['time'])
 275         {
 276             case 'minute':
 277                 $time += JIRAFEAU_MINUTE;
 278                 break;
 279             case 'hour':
 280                 $time += JIRAFEAU_HOUR;
 281                 break;
 282             case 'day':
 283                 $time += JIRAFEAU_DAY;
 284                 break;
 285             case 'week':
 286                 $time += JIRAFEAU_WEEK;
 287                 break;
 288             case 'month':
 289                 $time += JIRAFEAU_MONTH;
 290                 break;
 291             default:
 292                 $time = JIRAFEAU_INFINITY;
 293                 break;
 294         }
 295     $res = jirafeau_upload ($_FILES['file'],
 296                             isset ($_POST['one_time_download']),
 297                             $key, $time, $_SERVER['REMOTE_ADDR'],
 298                             $cfg['enable_crypt'], $cfg['link_name_lenght']);
 299
 300     if (empty($res) || $res['error']['has_error'])
 301     {
 302         echo "Error";
 303         exit;
 304     }
 305     /* Print direct link. */
 306     echo $res['link'];
 307     /* Print delete link. */
 308     echo NL;
 309     echo $res['delete_link'];
 310     /* Print decrypt key. */
 311     echo NL;
 312     echo urlencode($res['crypt_key']);
 313 }
 314 elseif (isset ($_GET['h']))
 315 {
 316     $link_name = $_GET['h'];
 317     $key = '';
 318     if (isset ($_POST['key']))
 319         $key = $_POST['key'];
 320     $d = '';
 321     if (isset ($_GET['d']))
 322         $d = $_GET['d'];
 323
 324     if (!preg_match ('/[0-9a-zA-Z_-]+$/', $link_name))
 325     {
 326         echo "Error";
 327         exit;
 328     }
 329
 330     $link = jirafeau_get_link ($link_name);
 331     if (count ($link) == 0)
 332     {
 333         echo "Error";
 334         exit;
 335     }
 336     if (strlen ($d) > 0 && $d == $link['link_code'])
 337     {
 338         jirafeau_delete_link ($link_name);
 339         echo "Ok";
 340         exit;
 341     }
 342     if ($link['time'] != JIRAFEAU_INFINITY && time () > $link['time'])
 343     {
 344         jirafeau_delete_link ($link_name);
 345         echo "Error";
 346         exit;
 347     }
 348     if (strlen ($link['key']) > 0 && md5 ($key) != $link['key'])
 349     {
 350         echo "Error";
 351         exit;
 352     }
 353     $p = s2p ($link['md5']);
 354     if (!file_exists (VAR_FILES . $p . $link['md5']))
 355     {
 356         echo "Error";
 357         exit;
 358     }
 359
 360     /* Read file. */
 361     header ('Content-Length: ' . $link['file_size']);
 362     header ('Content-Type: ' . $link['mime_type']);
 363     header ('Content-Disposition: attachment; filename="' .
 364             $link['file_name'] . '"');
 365
 366     $r = fopen (VAR_FILES . $p . $link['md5'], 'r');
 367     while (!feof ($r))
 368     {
 369         print fread ($r, 1024);
 370         ob_flush();
 371     }
 372     fclose ($r);
 373
 374     if ($link['onetime'] == 'O')
 375         jirafeau_delete_link ($link_name);
 376     exit;
 377 }
 378 elseif (isset ($_GET['get_capacity']))
 379 {
 380     echo min (jirafeau_ini_to_bytes (ini_get ('post_max_size')),
 381               jirafeau_ini_to_bytes (ini_get ('upload_max_filesize')));
 382 }
 383 elseif (isset ($_GET['get_version']))
 384 {
 385     echo JIRAFEAU_VERSION;
 386 }
 387 elseif (isset ($_GET['lang']))
 388 {
 389     $l=$_GET['lang'];
 390     if ($l == "bash")
 391     {
 392 ?>
 393 #!/bin/bash
 394
 395 # This script has been auto-generated by Jirafeau but you can still edit
 396 # options below.
 397
 398 # Config
 399 proxy='' # ex: proxy='proxysever.test.com:3128' or set JIRAFEAU_PROXY global variable
 400 url='<?php echo $cfg['web_root'] . 'script.php'; ?>' # or set JIRAFEAU_URL ex: url='http://mysite/jirafeau/script.php'
 401 time='none' # minute, hour, day, week, month or none. Or set JIRAFEAU_TIME.
 402 one_time='' # ex: one_time="1" or set JIRAFEAU_ONE_TIME.
 403 curl='' # curl path to download or set JIRAFEAU_CURL_PATH.
 404 # End of config
 405
 406 if [ -n "$JIRAFEAU_PROXY" ]; then
 407     proxy="$JIRAFEAU_PROXY"
 408 fi
 409
 410 if [ -n "$JIRAFEAU_URL" ]; then
 411     url="$JIRAFEAU_URL"
 412 fi
 413
 414 if [ -z "$url" ]; then
 415     echo "Please set url in script parameters or export JIRAFEAU_URL"
 416 fi
 417
 418 if [ -n "$JIRAFEAU_TIME" ]; then
 419     time="$JIRAFEAU_TIME"
 420 fi
 421
 422 if [ -n "$JIRAFEAU_ONE_TIME" ]; then
 423     one_time='1'
 424 fi
 425
 426 if [ -z "$curl" ]; then
 427     curl="$JIRAFEAU_CURL_PATH"
 428 fi
 429
 430 if [ -z "$curl" ] && [ -e "/usr/bin/curl" ]; then
 431     curl="/usr/bin/curl"
 432 fi
 433
 434 if [ -z "$curl" ] && [ -e "/bin/curl.exe" ]; then
 435     curl="/bin/curl.exe"
 436 fi
 437
 438 if [ -z "$curl" ]; then
 439     echo "Please set your curl binary path (by editing this script or export JIRAFEAU_CURL_PATH global variable)."
 440     exit
 441 fi
 442
 443 if [ -z "$2" ]; then
 444     echo "man:"
 445     echo "    $0 send PATH [PASSWORD]"
 446     echo "    $0 get URL [PASSWORD]"
 447     echo "    $0 delete URL"
 448     echo ""
 449     echo "Global variables to export:"
 450     echo "    JIRAFEAU_PROXY : example: proxysever.test.com:3128"
 451     echo "    JIRAFEAU_URL : example: http://mysite/jirafeau/script.php"
 452     echo "    JIRAFEAU_TIME : minute, hour, day, week, month or none"
 453     echo "    JIRAFEAU_ONE_TIME : set anything or set empty"
 454     echo "    JIRAFEAU_CURL : path to your curl binary"
 455
 456     exit 0
 457 fi
 458
 459 if [ -n "$proxy" ]; then
 460     proxy="-x $proxy"
 461 fi
 462
 463 options=''
 464 if [ -n "$one_time" ]; then
 465     options="$options -F one_time_download=1"
 466 fi
 467
 468 password=''
 469 if [ -n "$3" ]; then
 470     password="$3"
 471     options="$options -F key=$password"
 472 fi
 473
 474 if [ "$1" == "send" ]; then
 475     if [ ! -f "$2" ]; then
 476         echo "File \"$2\" does not exists."
 477         exit
 478     fi
 479
 480     # Ret result
 481     res=$($curl -X POST --http1.0 $proxy $options \
 482                   -F "time=$time" \
 483                   -F "file=@$2" \
 484                   $url)
 485
 486     if [[ "$res" == "Error" ]]; then
 487         echo "Error while uploading."
 488         exit
 489     fi
 490
 491     # Not using head or tail to minimise command dependencies
 492     code=$(cnt=0; echo "$res" | while read l; do
 493         if [[ "$cnt" == "0" ]]; then
 494             echo "$l"
 495         fi
 496         cnt=$(( cnt + 1 ))
 497         done)
 498     del_code=$(cnt=0; echo "$res" | while read l; do
 499         if [[ "$cnt" == "1" ]]; then
 500             echo "$l"
 501         fi
 502         cnt=$(( cnt + 1 ))
 503         done)
 504     echo "${url}?h=$code"
 505     echo "${url}?h=$code&d=$del_code"
 506 elif [ "$1" == "get" ]; then
 507     if [ -z "$password" ]; then
 508         $curl $proxy -OJ "$2"
 509     else
 510         $curl $proxy -OJ -X POST -F key=$password "$2"
 511     fi
 512 elif [ "$1" == "delete" ]; then
 513     $curl $proxy "$2"
 514 fi
 515 <?php
 516     }
 517     else
 518     {
 519         echo "Error";
 520         exit;
 521     }
 522 }
 523 /* Initialize an asynchronous upload. */
 524 elseif (isset ($_GET['init_async']))
 525 {
 526     if (!isset ($_POST['filename']))
 527     {
 528         echo "Error";
 529         exit;
 530     }
 531
 532     $type = '';
 533     if (isset ($_POST['type']))
 534         $type = $_POST['type'];
 535
 536     $key = '';
 537     if (isset ($_POST['password']))
 538         $key = $_POST['password'];
 539
 540     $time = time ();
 541     if (!isset ($_POST['time']))
 542         $time = JIRAFEAU_INFINITY;
 543     else
 544         switch ($_POST['time'])
 545         {
 546             case 'minute':
 547                 $time += JIRAFEAU_MINUTE;
 548                 break;
 549             case 'hour':
 550                 $time += JIRAFEAU_HOUR;
 551                 break;
 552             case 'day':
 553                 $time += JIRAFEAU_DAY;
 554                 break;
 555             case 'week':
 556                 $time += JIRAFEAU_WEEK;
 557                 break;
 558             case 'month':
 559                 $time += JIRAFEAU_MONTH;
 560                 break;
 561             default:
 562                 $time = JIRAFEAU_INFINITY;
 563                 break;
 564         }
 565     echo jirafeau_async_init ($_POST['filename'],
 566                               $type,
 567                               isset ($_POST['one_time_download']),
 568                               $key,
 569                               $time,
 570                               $_SERVER['REMOTE_ADDR']);
 571 }
 572 /* Continue an asynchronous upload. */
 573 elseif (isset ($_GET['push_async']))
 574 {
 575     if ((!isset ($_POST['ref']))
 576         || (!isset ($_FILES['data']))
 577         || (!isset ($_POST['code'])))
 578         echo "Error";
 579     else
 580         echo jirafeau_async_push ($_POST['ref'], $_FILES['data'], $_POST['code']);
 581 }
 582 /* Finalize an asynchronous upload. */
 583 elseif (isset ($_GET['end_async']))
 584 {
 585     if (!isset ($_POST['ref'])
 586         || !isset ($_POST['code']))
 587         echo "Error";
 588     else
 589         echo jirafeau_async_end ($_POST['ref'], $_POST['code'], $cfg['enable_crypt'], $cfg['link_name_lenght']);
 590 }
 591 /* Initialize block. */
 592 elseif (isset ($_GET['init_block']) && $cfg['enable_blocks'])
 593 {
 594     if (!isset ($_POST['size']))
 595         echo "Error";
 596     else
 597         echo jirafeau_block_init ($_POST['size']);
 598 }
 599 /* Get block size. */
 600 elseif (isset ($_GET['get_block_size']) && $cfg['enable_blocks'])
 601 {
 602     if (!isset ($_POST['id']))
 603         echo "Error";
 604     else
 605         echo jirafeau_block_get_size ($_POST['id']);
 606 }
 607 /* Read data in block. */
 608 elseif (isset ($_GET['read_block']) && $cfg['enable_blocks'])
 609 {
 610     if (!isset ($_POST['id'])
 611         || !isset ($_POST['start'])
 612         || !isset ($_POST['length']))
 613         echo "Error";
 614     else
 615         jirafeau_block_read ($_POST['id'], $_POST['start'], $_POST['length']);
 616 }
 617 /* Write data in block. */
 618 elseif (isset ($_GET['write_block']) && $cfg['enable_blocks'])
 619 {
 620     if (!isset ($_POST['id'])
 621         || !isset ($_POST['start'])
 622         || !isset ($_FILES['data'])
 623         || !isset ($_POST['code']))
 624         echo "Error";
 625     else
 626         echo jirafeau_block_write ($_POST['id'], $_POST['start'], $_FILES['data'], $_POST['code']);
 627 }
 628 /* Delete block. */
 629 elseif (isset ($_GET['delete_block']) && $cfg['enable_blocks'])
 630 {
 631     if (!isset ($_POST['id'])
 632         || !isset ($_POST['code']))
 633         echo "Error";
 634     else
 635         echo jirafeau_block_delete ($_POST['id'], $_POST['code']);
 636 }
 637 else
 638     echo "Error";
 639 exit;
 640 ?>