mirror of
https://github.com/YunoHost-Apps/jirafeau_ynh.git
synced 2024-09-03 19:35:53 +02:00
1380 lines
37 KiB
PHP
Executable file
1380 lines
37 KiB
PHP
Executable file
<?php
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/*
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* Jirafeau, your web file repository
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* Copyright (C) 2008 Julien "axolotl" BERNARD <axolotl@magieeternelle.org>
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* Copyright (C) 2012 Jerome Jutteau <j.jutteau@gmail.com>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* Transform a string in a path by seperating each letters by a '/'.
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* @return path finishing with a '/'
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*/
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function
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s2p ($s)
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{
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$p = '';
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for ($i = 0; $i < strlen ($s); $i++)
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$p .= $s{$i} . '/';
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return $p;
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}
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/**
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* Convert base 16 to base 64
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* @returns A string based on 64 characters (0-9, a-z, A-Z, "-" and "_")
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*/
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function
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base_16_to_64 ($num)
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{
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$m = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ-_';
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$hex2bin = array ('0000', # 0
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'0001', # 1
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'0010', # 2
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'0011', # 3
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'0100', # 4
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'0101', # 5
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'0110', # 6
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'0111', # 7
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'1000', # 8
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'1001', # 9
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'1010', # a
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'1011', # b
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'1100', # c
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'1101', # d
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'1110', # e
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'1111'); # f
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$o = '';
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$b = '';
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$i = 0;
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# Convert long hex string to bin.
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$size = strlen ($num);
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for ($i = 0; $i < $size; $i++)
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$b .= $hex2bin{hexdec ($num{$i})};
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# Convert long bin to base 64.
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$size *= 4;
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for ($i = $size - 6; $i >= 0; $i -= 6)
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$o = $m{bindec (substr ($b, $i, 6))} . $o;
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# Some few bits remaining ?
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if ($i < 0 && $i > -6)
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$o = $m{bindec (substr ($b, 0, $i + 6))} . $o;
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return $o;
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}
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/**
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* Generate a random code.
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* @param $l code length
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* @return random code.
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*/
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function
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jirafeau_gen_random ($l)
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{
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if ($l <= 0)
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return 42;
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$code="";
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for ($i = 0; $i < $l; $i++)
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$code .= dechex (rand (0, 15));
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return $code;
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}
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function
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jirafeau_human_size ($octets)
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{
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$u = array ('B', 'KB', 'MB', 'GB', 'TB');
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$o = max ($octets, 0);
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$p = min (floor (($o ? log ($o) : 0) / log (1024)), count ($u) - 1);
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$o /= pow (1024, $p);
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return round ($o, 1) . $u[$p];
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}
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function
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jirafeau_clean_rm_link ($link)
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{
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$p = s2p ("$link");
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if (file_exists (VAR_LINKS . $p . $link))
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unlink (VAR_LINKS . $p . $link);
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$parse = VAR_LINKS . $p;
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$scan = array();
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while (file_exists ($parse)
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&& ($scan = scandir ($parse))
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&& count ($scan) == 2 // '.' and '..' folders => empty.
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&& basename ($parse) != basename (VAR_LINKS))
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{
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rmdir ($parse);
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$parse = substr ($parse, 0, strlen($parse) - strlen(basename ($parse)) - 1);
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}
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}
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function
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jirafeau_clean_rm_file ($md5)
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{
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$p = s2p ("$md5");
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$f = VAR_FILES . $p . $md5;
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if (file_exists ($f) && is_file ($f))
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unlink ($f);
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if (file_exists ($f . '_count') && is_file ($f . '_count'))
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unlink ($f . '_count');
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$parse = VAR_FILES . $p;
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$scan = array();
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while (file_exists ($parse)
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&& ($scan = scandir ($parse))
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&& count ($scan) == 2 // '.' and '..' folders => empty.
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&& basename ($parse) != basename (VAR_FILES))
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{
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rmdir ($parse);
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$parse = substr ($parse, 0, strlen($parse) - strlen(basename ($parse)) - 1);
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}
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}
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/**
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* transforms a php.ini string representing a value in an integer
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* @param $value the value from php.ini
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* @returns an integer for this value
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*/
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function jirafeau_ini_to_bytes ($value)
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{
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$modifier = substr ($value, -1);
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$bytes = substr ($value, 0, -1);
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switch (strtoupper ($modifier))
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{
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case 'P':
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$bytes *= 1024;
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case 'T':
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$bytes *= 1024;
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case 'G':
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$bytes *= 1024;
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case 'M':
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$bytes *= 1024;
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case 'K':
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$bytes *= 1024;
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default:
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break;
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}
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return $bytes;
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}
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/**
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* gets the maximum upload size according to php.ini
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* @returns the maximum upload size in bytes
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*/
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function
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jirafeau_get_max_upload_size_bytes ()
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{
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return min (jirafeau_ini_to_bytes (ini_get ('post_max_size')),
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jirafeau_ini_to_bytes (ini_get ('upload_max_filesize')));
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}
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/**
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* gets the maximum upload size according to php.ini
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* @returns the maximum upload size string
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*/
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function
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jirafeau_get_max_upload_size ()
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{
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return jirafeau_human_size(
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min (jirafeau_ini_to_bytes (ini_get ('post_max_size')),
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jirafeau_ini_to_bytes (ini_get ('upload_max_filesize'))));
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}
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/**
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* gets a string explaining the error
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* @param $code the error code
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* @returns a string explaining the error
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*/
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function
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jirafeau_upload_errstr ($code)
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{
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switch ($code)
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{
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case UPLOAD_ERR_INI_SIZE:
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case UPLOAD_ERR_FORM_SIZE:
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return t('Your file exceeds the maximum authorized file size. ');
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break;
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case UPLOAD_ERR_PARTIAL:
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case UPLOAD_ERR_NO_FILE:
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return
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t
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('Your file was not uploaded correctly. You may succeed in retrying. ');
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break;
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case UPLOAD_ERR_NO_TMP_DIR:
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case UPLOAD_ERR_CANT_WRITE:
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case UPLOAD_ERR_EXTENSION:
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return t('Internal error. You may not succeed in retrying. ');
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break;
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default:
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break;
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}
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return t('Unknown error. ');
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}
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/** Remove link and it's file
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* @param $link the link's name (hash)
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*/
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function
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jirafeau_delete_link ($link)
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{
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$l = jirafeau_get_link ($link);
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if (!count ($l))
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return;
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jirafeau_clean_rm_link ($link);
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$md5 = $l['md5'];
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$p = s2p ("$md5");
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$counter = 1;
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if (file_exists (VAR_FILES . $p . $md5. '_count'))
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{
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$content = file (VAR_FILES . $p . $md5. '_count');
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$counter = trim ($content[0]);
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}
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$counter--;
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if ($counter >= 1)
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{
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$handle = fopen (VAR_FILES . $p . $md5. '_count', 'w');
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fwrite ($handle, $counter);
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fclose ($handle);
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}
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if ($counter == 0)
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jirafeau_clean_rm_file ($md5);
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}
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/**
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* Delete a file and it's links.
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*/
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function
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jirafeau_delete_file ($md5)
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{
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$count = 0;
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/* Get all links files. */
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$stack = array (VAR_LINKS);
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while (($d = array_shift ($stack)) && $d != NULL)
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{
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$dir = scandir ($d);
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foreach ($dir as $node)
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{
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if (strcmp ($node, '.') == 0 || strcmp ($node, '..') == 0 ||
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preg_match ('/\.tmp/i', "$node"))
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continue;
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if (is_dir ($d . $node))
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{
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/* Push new found directory. */
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$stack[] = $d . $node . '/';
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}
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elseif (is_file ($d . $node))
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{
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/* Read link informations. */
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$l = jirafeau_get_link (basename ($node));
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if (!count ($l))
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continue;
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if ($l['md5'] == $md5)
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{
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$count++;
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jirafeau_delete_link ($node);
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}
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}
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}
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}
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jirafeau_clean_rm_file ($md5);
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return $count;
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}
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/**
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* handles an uploaded file
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* @param $file the file struct given by $_FILE[]
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* @param $one_time_download is the file a one time download ?
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* @param $key if not empty, protect the file with this key
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* @param $time the time of validity of the file
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* @param $ip uploader's ip
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* @param $crypt boolean asking to crypt or not
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* @param $link_name_length size of the link name
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* @returns an array containing some information
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* 'error' => information on possible errors
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* 'link' => the link name of the uploaded file
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* 'delete_link' => the link code to delete file
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*/
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||
function
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||
jirafeau_upload ($file, $one_time_download, $key, $time, $ip, $crypt, $link_name_length)
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{
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if (empty ($file['tmp_name']) || !is_uploaded_file ($file['tmp_name']))
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||
{
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||
return (array(
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||
'error' =>
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array ('has_error' => true,
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'why' => jirafeau_upload_errstr ($file['error'])),
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'link' => '',
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'delete_link' => ''));
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||
}
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/* array representing no error */
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$noerr = array ('has_error' => false, 'why' => '');
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/* Crypt file if option is enabled. */
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||
$crypted = false;
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||
$crypt_key = '';
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||
if ($crypt == true && extension_loaded('mcrypt'))
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||
{
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||
$crypt_key = jirafeau_encrypt_file ($file['tmp_name'], $file['tmp_name']);
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||
if (strlen($crypt_key) > 0)
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$crypted = true;
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}
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/* file informations */
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$md5 = md5_file ($file['tmp_name']);
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$name = str_replace (NL, '', trim ($file['name']));
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$mime_type = $file['type'];
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$size = $file['size'];
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||
|
||
/* does file already exist ? */
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||
$rc = false;
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$p = s2p ("$md5");
|
||
if (file_exists (VAR_FILES . $p . $md5))
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{
|
||
$rc = unlink ($file['tmp_name']);
|
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}
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elseif ((file_exists (VAR_FILES . $p) || @mkdir (VAR_FILES . $p, 0755, true))
|
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&& move_uploaded_file ($file['tmp_name'], VAR_FILES . $p . $md5))
|
||
{
|
||
$rc = true;
|
||
}
|
||
if (!$rc)
|
||
{
|
||
return (array(
|
||
'error' =>
|
||
array ('has_error' => true,
|
||
'why' => t('Internal error during file creation.')),
|
||
'link' =>'',
|
||
'delete_link' => ''));
|
||
}
|
||
|
||
/* Increment or create count file. */
|
||
$counter = 0;
|
||
if (file_exists (VAR_FILES . $p . $md5 . '_count'))
|
||
{
|
||
$content = file (VAR_FILES . $p . $md5. '_count');
|
||
$counter = trim ($content[0]);
|
||
}
|
||
$counter++;
|
||
$handle = fopen (VAR_FILES . $p . $md5. '_count', 'w');
|
||
fwrite ($handle, $counter);
|
||
fclose ($handle);
|
||
|
||
/* Create delete code. */
|
||
$delete_link_code = jirafeau_gen_random (5);
|
||
|
||
/* md5 password or empty. */
|
||
$password = '';
|
||
if (!empty ($key))
|
||
$password = md5 ($key);
|
||
|
||
/* create link file */
|
||
$link_tmp_name = VAR_LINKS . $md5 . rand (0, 10000) . '.tmp';
|
||
$handle = fopen ($link_tmp_name, 'w');
|
||
fwrite ($handle,
|
||
$name . NL. $mime_type . NL. $size . NL. $password . NL. $time .
|
||
NL . $md5. NL . ($one_time_download ? 'O' : 'R') . NL . date ('U') .
|
||
NL . $ip . NL. $delete_link_code . NL . ($crypted ? 'C' : 'O'));
|
||
fclose ($handle);
|
||
$md5_link = substr(base_16_to_64 (md5_file ($link_tmp_name)), 0, $link_name_length);
|
||
$l = s2p ("$md5_link");
|
||
if (!@mkdir (VAR_LINKS . $l, 0755, true) ||
|
||
!rename ($link_tmp_name, VAR_LINKS . $l . $md5_link))
|
||
{
|
||
if (file_exists ($link_tmp_name))
|
||
unlink ($link_tmp_name);
|
||
|
||
$counter--;
|
||
if ($counter >= 1)
|
||
{
|
||
$handle = fopen (VAR_FILES . $p . $md5. '_count', 'w');
|
||
fwrite ($handle, $counter);
|
||
fclose ($handle);
|
||
}
|
||
else
|
||
{
|
||
jirafeau_clean_rm_file ($md5_link);
|
||
}
|
||
return (array(
|
||
'error' =>
|
||
array ('has_error' => true,
|
||
'why' => t('Internal error during file creation. ')),
|
||
'link' =>'',
|
||
'delete_link' => ''));
|
||
}
|
||
return (array ('error' => $noerr,
|
||
'link' => $md5_link,
|
||
'delete_link' => $delete_link_code,
|
||
'crypt_key' => $crypt_key));
|
||
}
|
||
|
||
/**
|
||
* tells if a mime-type is viewable in a browser
|
||
* @param $mime the mime type
|
||
* @returns a boolean telling if a mime type is viewable
|
||
*/
|
||
function
|
||
jirafeau_is_viewable ($mime)
|
||
{
|
||
if (!empty ($mime))
|
||
{
|
||
/* Actually, verify if mime-type is an image or a text. */
|
||
$viewable = array ('image', 'text');
|
||
$decomposed = explode ('/', $mime);
|
||
return in_array ($decomposed[0], $viewable);
|
||
}
|
||
return false;
|
||
}
|
||
|
||
// Error handling functions.
|
||
//! Global array that contains all registered errors.
|
||
$error_list = array ();
|
||
|
||
/**
|
||
* Adds an error to the list of errors.
|
||
* @param $title the error's title
|
||
* @param $description is a human-friendly description of the problem.
|
||
*/
|
||
function
|
||
add_error ($title, $description)
|
||
{
|
||
global $error_list;
|
||
$error_list[] = '<p>' . $title. '<br />' . $description. '</p>';
|
||
}
|
||
|
||
/**
|
||
* Informs whether any error has been registered yet.
|
||
* @return true if there are errors.
|
||
*/
|
||
function
|
||
has_error ()
|
||
{
|
||
global $error_list;
|
||
return !empty ($error_list);
|
||
}
|
||
|
||
/**
|
||
* Displays all the errors.
|
||
*/
|
||
function
|
||
show_errors ()
|
||
{
|
||
if (has_error ())
|
||
{
|
||
global $error_list;
|
||
echo '<div class="error">';
|
||
foreach ($error_list as $error)
|
||
{
|
||
echo $error;
|
||
}
|
||
echo '</div>';
|
||
}
|
||
}
|
||
|
||
function check_errors ()
|
||
{
|
||
if (file_exists (JIRAFEAU_ROOT . 'install.php')
|
||
&& !file_exists (JIRAFEAU_ROOT . 'lib/config.local.php'))
|
||
{
|
||
header('Location: install.php');
|
||
exit;
|
||
}
|
||
|
||
/* check if the destination dirs are writable */
|
||
$writable = is_writable (VAR_FILES) && is_writable (VAR_LINKS);
|
||
|
||
/* Checking for errors. */
|
||
if (!is_writable (VAR_FILES))
|
||
add_error (t('The file directory is not writable!'), VAR_FILES);
|
||
|
||
if (!is_writable (VAR_LINKS))
|
||
add_error (t('The link directory is not writable!'), VAR_LINKS);
|
||
|
||
if (!is_writable (VAR_ASYNC))
|
||
add_error (t('The async directory is not writable!'), VAR_ASYNC);
|
||
|
||
if (!is_writable (VAR_BLOCK))
|
||
add_error (t('The block directory is not writable!'), VAR_BLOCK);
|
||
|
||
/* Check if the install.php script is still in the directory. */
|
||
if (file_exists (JIRAFEAU_ROOT . 'install.php'))
|
||
add_error (t('Installer script still present'),
|
||
t('Please make sure to delete the installer script ' .
|
||
'"install.php" before continuing.'));
|
||
}
|
||
|
||
/**
|
||
* Read link informations
|
||
* @return array containing informations.
|
||
*/
|
||
function
|
||
jirafeau_get_link ($hash)
|
||
{
|
||
$out = array ();
|
||
$link = VAR_LINKS . s2p ("$hash") . $hash;
|
||
|
||
if (!file_exists ($link))
|
||
return $out;
|
||
|
||
$c = file ($link);
|
||
$out['file_name'] = trim ($c[0]);
|
||
$out['mime_type'] = trim ($c[1]);
|
||
$out['file_size'] = trim ($c[2]);
|
||
$out['key'] = trim ($c[3], NL);
|
||
$out['time'] = trim ($c[4]);
|
||
$out['md5'] = trim ($c[5]);
|
||
$out['onetime'] = trim ($c[6]);
|
||
$out['upload_date'] = trim ($c[7]);
|
||
$out['ip'] = trim ($c[8]);
|
||
$out['link_code'] = trim ($c[9]);
|
||
if (trim ($c[10]) == 'C')
|
||
$out['crypted'] = true;
|
||
|
||
return $out;
|
||
}
|
||
|
||
/**
|
||
* List files in admin interface.
|
||
*/
|
||
function
|
||
jirafeau_admin_list ($name, $file_hash, $link_hash)
|
||
{
|
||
echo '<fieldset><legend>';
|
||
if (!empty ($name))
|
||
echo t('Filename') . ": $name ";
|
||
if (!empty ($file_hash))
|
||
echo t('file') . ": $file_hash ";
|
||
if (!empty ($link_hash))
|
||
echo t('link') . ": $link_hash ";
|
||
if (empty ($name) && empty ($file_hash) && empty ($link_hash))
|
||
echo t('List all files');
|
||
echo '</legend>';
|
||
echo '<table>';
|
||
echo '<tr>';
|
||
echo '<td>' . t('Filename') . '</td>';
|
||
echo '<td>' . t('Type') . '</td>';
|
||
echo '<td>' . t('Size') . '</td>';
|
||
echo '<td>' . t('Expire') . '</td>';
|
||
echo '<td>' . t('Onetime') . '</td>';
|
||
echo '<td>' . t('Upload date') . '</td>';
|
||
echo '<td>' . t('Origin') . '</td>';
|
||
echo '<td>' . t('Action') . '</td>';
|
||
echo '</tr>';
|
||
|
||
/* Get all links files. */
|
||
$stack = array (VAR_LINKS);
|
||
while (($d = array_shift ($stack)) && $d != NULL)
|
||
{
|
||
$dir = scandir ($d);
|
||
foreach ($dir as $node)
|
||
{
|
||
if (strcmp ($node, '.') == 0 || strcmp ($node, '..') == 0 ||
|
||
preg_match ('/\.tmp/i', "$node"))
|
||
continue;
|
||
if (is_dir ($d . $node))
|
||
{
|
||
/* Push new found directory. */
|
||
$stack[] = $d . $node . '/';
|
||
}
|
||
elseif (is_file ($d . $node))
|
||
{
|
||
/* Read link informations. */
|
||
$l = jirafeau_get_link ($node);
|
||
if (!count ($l))
|
||
continue;
|
||
|
||
/* Filter. */
|
||
if (!empty ($name) && !preg_match ("/$name/i", $l['file_name']))
|
||
continue;
|
||
if (!empty ($file_hash) && $file_hash != $l['md5'])
|
||
continue;
|
||
if (!empty ($link_hash) && $link_hash != $node)
|
||
continue;
|
||
/* Print link informations. */
|
||
echo '<tr>';
|
||
echo '<td>' .
|
||
'<form action = "admin.php" method = "post">' .
|
||
'<input type = "hidden" name = "action" value = "download"/>' .
|
||
'<input type = "hidden" name = "link" value = "' . $node . '"/>' .
|
||
'<input type = "submit" value = "' . $l['file_name'] . '" />' .
|
||
'</form>';
|
||
echo '</td>';
|
||
echo '<td>' . $l['mime_type'] . '</td>';
|
||
echo '<td>' . jirafeau_human_size ($l['file_size']) . '</td>';
|
||
echo '<td>' . ($l['time'] == -1 ? '' : strftime ('%c', $l['time'])) .
|
||
'</td>';
|
||
echo '<td>' . $l['onetime'] . '</td>';
|
||
echo '<td>' . strftime ('%c', $l['upload_date']) . '</td>';
|
||
echo '<td>' . $l['ip'] . '</td>';
|
||
echo '<td>' .
|
||
'<form action = "admin.php" method = "post">' .
|
||
'<input type = "hidden" name = "action" value = "delete_link"/>' .
|
||
'<input type = "hidden" name = "link" value = "' . $node . '"/>' .
|
||
'<input type = "submit" value = "' . t('Del link') . '" />' .
|
||
'</form>' .
|
||
'<form action = "admin.php" method = "post">' .
|
||
'<input type = "hidden" name = "action" value = "delete_file"/>' .
|
||
'<input type = "hidden" name = "md5" value = "' . $l['md5'] . '"/>' .
|
||
'<input type = "submit" value = "' . t('Del file and links') . '" />' .
|
||
'</form>' .
|
||
'</td>';
|
||
echo '</tr>';
|
||
}
|
||
}
|
||
}
|
||
echo '</table></fieldset>';
|
||
}
|
||
|
||
/**
|
||
* Clean expired files.
|
||
* @return number of cleaned files.
|
||
*/
|
||
function
|
||
jirafeau_admin_clean ()
|
||
{
|
||
$count = 0;
|
||
/* Get all links files. */
|
||
$stack = array (VAR_LINKS);
|
||
while (($d = array_shift ($stack)) && $d != NULL)
|
||
{
|
||
$dir = scandir ($d);
|
||
|
||
foreach ($dir as $node)
|
||
{
|
||
if (strcmp ($node, '.') == 0 || strcmp ($node, '..') == 0 ||
|
||
preg_match ('/\.tmp/i', "$node"))
|
||
continue;
|
||
|
||
if (is_dir ($d . $node))
|
||
{
|
||
/* Push new found directory. */
|
||
$stack[] = $d . $node . '/';
|
||
}
|
||
elseif (is_file ($d . $node))
|
||
{
|
||
/* Read link informations. */
|
||
$l = jirafeau_get_link (basename ($node));
|
||
if (!count ($l))
|
||
continue;
|
||
$p = s2p ($l['md5']);
|
||
if ($l['time'] > 0 && $l['time'] < time () || // expired
|
||
!file_exists (VAR_FILES . $p . $l['md5']) || // invalid
|
||
!file_exists (VAR_FILES . $p . $l['md5'] . '_count')) // invalid
|
||
{
|
||
jirafeau_delete_link ($node);
|
||
$count++;
|
||
}
|
||
}
|
||
}
|
||
}
|
||
return $count;
|
||
}
|
||
|
||
|
||
/**
|
||
* Clean old async transferts.
|
||
* @return number of cleaned files.
|
||
*/
|
||
function
|
||
jirafeau_admin_clean_async ()
|
||
{
|
||
$count = 0;
|
||
/* Get all links files. */
|
||
$stack = array (VAR_ASYNC);
|
||
while (($d = array_shift ($stack)) && $d != NULL)
|
||
{
|
||
$dir = scandir ($d);
|
||
|
||
foreach ($dir as $node)
|
||
{
|
||
if (strcmp ($node, '.') == 0 || strcmp ($node, '..') == 0 ||
|
||
preg_match ('/\.tmp/i', "$node"))
|
||
continue;
|
||
|
||
if (is_dir ($d . $node))
|
||
{
|
||
/* Push new found directory. */
|
||
$stack[] = $d . $node . '/';
|
||
}
|
||
elseif (is_file ($d . $node))
|
||
{
|
||
/* Read async informations. */
|
||
$a = jirafeau_get_async_ref (basename ($node));
|
||
if (!count ($a))
|
||
continue;
|
||
/* Delete transferts older than 1 hour. */
|
||
if (date ('U') - $a['last_edited'] > 3600)
|
||
{
|
||
jirafeau_async_delete (basename ($node));
|
||
$count++;
|
||
}
|
||
}
|
||
}
|
||
}
|
||
return $count;
|
||
}
|
||
/**
|
||
* Read async transfert informations
|
||
* @return array containing informations.
|
||
*/
|
||
function
|
||
jirafeau_get_async_ref ($ref)
|
||
{
|
||
$out = array ();
|
||
$refinfos = VAR_ASYNC . s2p ("$ref") . "$ref";
|
||
|
||
if (!file_exists ($refinfos))
|
||
return $out;
|
||
|
||
$c = file ($refinfos);
|
||
$out['file_name'] = trim ($c[0]);
|
||
$out['mime_type'] = trim ($c[1]);
|
||
$out['key'] = trim ($c[2], NL);
|
||
$out['time'] = trim ($c[3]);
|
||
$out['onetime'] = trim ($c[4]);
|
||
$out['ip'] = trim ($c[5]);
|
||
$out['last_edited'] = trim ($c[6]);
|
||
$out['next_code'] = trim ($c[7]);
|
||
return $out;
|
||
}
|
||
|
||
/**
|
||
* Delete async transfert informations
|
||
*/
|
||
function
|
||
jirafeau_async_delete ($ref)
|
||
{
|
||
$p = s2p ("$ref");
|
||
if (file_exists (VAR_ASYNC . $p . $ref))
|
||
unlink (VAR_ASYNC . $p . $ref);
|
||
if (file_exists (VAR_ASYNC . $p . $ref . '_data'))
|
||
unlink (VAR_ASYNC . $p . $ref . '_data');
|
||
$parse = VAR_ASYNC . $p;
|
||
$scan = array();
|
||
while (file_exists ($parse)
|
||
&& ($scan = scandir ($parse))
|
||
&& count ($scan) == 2 // '.' and '..' folders => empty.
|
||
&& basename ($parse) != basename (VAR_ASYNC))
|
||
{
|
||
rmdir ($parse);
|
||
$parse = substr ($parse, 0, strlen($parse) - strlen(basename ($parse)) - 1);
|
||
}
|
||
}
|
||
|
||
/**
|
||
* Init a new asynchronous upload.
|
||
* @param $finename Name of the file to send
|
||
* @param $one_time One time upload parameter
|
||
* @param $key eventual password (or blank)
|
||
* @param $time time limit
|
||
* @param $ip ip address of the client
|
||
* @return a string containing a temporary reference followed by a code or the string "Error"
|
||
*/
|
||
function
|
||
jirafeau_async_init ($filename, $type, $one_time, $key, $time, $ip)
|
||
{
|
||
$res = 'Error';
|
||
|
||
/* Create temporary folder. */
|
||
$ref;
|
||
$p;
|
||
$code = jirafeau_gen_random (4);
|
||
do
|
||
{
|
||
$ref = jirafeau_gen_random (32);
|
||
$p = VAR_ASYNC . s2p ($ref);
|
||
} while (file_exists ($p));
|
||
@mkdir ($p, 0755, true);
|
||
if (!file_exists ($p))
|
||
{
|
||
echo "Error";
|
||
return;
|
||
}
|
||
|
||
/* md5 password or empty */
|
||
$password = '';
|
||
if (!empty ($key))
|
||
$password = md5 ($key);
|
||
|
||
/* Store informations. */
|
||
$p .= $ref;
|
||
$handle = fopen ($p, 'w');
|
||
fwrite ($handle,
|
||
str_replace (NL, '', trim ($filename)) . NL .
|
||
str_replace (NL, '', trim ($type)) . NL . $password . NL .
|
||
$time . NL . ($one_time ? 'O' : 'R') . NL . $ip . NL .
|
||
date ('U') . NL . $code . NL);
|
||
fclose ($handle);
|
||
|
||
return $ref . NL . $code ;
|
||
}
|
||
|
||
/**
|
||
* Append a piece of file on the asynchronous upload.
|
||
* @param $ref asynchronous upload reference
|
||
* @param $file piece of data
|
||
* @param $code client code for this operation
|
||
* @return a string containing a next code to use or the string "Error"
|
||
*/
|
||
function
|
||
jirafeau_async_push ($ref, $data, $code)
|
||
{
|
||
/* Get async infos. */
|
||
$a = jirafeau_get_async_ref ($ref);
|
||
|
||
/* Check some errors. */
|
||
if (count ($a) == 0
|
||
|| $a['next_code'] != "$code"
|
||
|| empty ($data['tmp_name'])
|
||
|| !is_uploaded_file ($data['tmp_name']))
|
||
return "Error";
|
||
|
||
$p = s2p ($ref);
|
||
|
||
/* Concatenate data. */
|
||
$r = fopen ($data['tmp_name'], 'r');
|
||
$w = fopen (VAR_ASYNC . $p . $ref . '_data', 'a');
|
||
while (!feof ($r))
|
||
{
|
||
if (fwrite ($w, fread ($r, 1024)) === false)
|
||
{
|
||
fclose ($r);
|
||
fclose ($w);
|
||
jirafeau_async_delete ($ref);
|
||
return "Error";
|
||
}
|
||
}
|
||
fclose ($r);
|
||
fclose ($w);
|
||
unlink ($data['tmp_name']);
|
||
|
||
/* Update async file. */
|
||
$code = jirafeau_gen_random (4);
|
||
$handle = fopen (VAR_ASYNC . $p . $ref, 'w');
|
||
fwrite ($handle,
|
||
$a['file_name'] . NL. $a['mime_type'] . NL. $a['key'] . NL .
|
||
$a['time'] . NL . $a['onetime'] . NL . $a['ip'] . NL .
|
||
date ('U') . NL . $code . NL);
|
||
fclose ($handle);
|
||
return $code;
|
||
}
|
||
|
||
/**
|
||
* Finalyze an asynchronous upload.
|
||
* @param $ref asynchronous upload reference
|
||
* @param $code client code for this operation
|
||
* @param $crypt boolean asking to crypt or not
|
||
* @param $link_name_length link name lenght
|
||
* @return a string containing the download reference followed by a delete code or the string "Error"
|
||
*/
|
||
function
|
||
jirafeau_async_end ($ref, $code, $crypt, $link_name_length)
|
||
{
|
||
/* Get async infos. */
|
||
$a = jirafeau_get_async_ref ($ref);
|
||
if (count ($a) == 0
|
||
|| $a['next_code'] != "$code")
|
||
return "Error";
|
||
|
||
/* Generate link infos. */
|
||
$p = VAR_ASYNC . s2p ($ref) . $ref . "_data";
|
||
if (!file_exists($p))
|
||
return "Error";
|
||
|
||
$crypted = false;
|
||
$crypt_key = '';
|
||
if ($crypt == true && extension_loaded('mcrypt'))
|
||
{
|
||
$crypt_key = jirafeau_encrypt_file ($p, $p);
|
||
if (strlen($crypt_key) > 0)
|
||
$crypted = true;
|
||
}
|
||
|
||
$md5 = md5_file ($p);
|
||
$size = filesize($p);
|
||
$np = s2p ($md5);
|
||
$delete_link_code = jirafeau_gen_random (5);
|
||
|
||
/* File already exist ? */
|
||
if (!file_exists (VAR_FILES . $np))
|
||
@mkdir (VAR_FILES . $np, 0755, true);
|
||
if (!file_exists (VAR_FILES . $np . $md5))
|
||
rename ($p, VAR_FILES . $np . $md5);
|
||
|
||
/* Increment or create count file. */
|
||
$counter = 0;
|
||
if (file_exists (VAR_FILES . $np . $md5 . '_count'))
|
||
{
|
||
$content = file (VAR_FILES . $np . $md5. '_count');
|
||
$counter = trim ($content[0]);
|
||
}
|
||
$counter++;
|
||
$handle = fopen (VAR_FILES . $np . $md5. '_count', 'w');
|
||
fwrite ($handle, $counter);
|
||
fclose ($handle);
|
||
|
||
/* Create link. */
|
||
$link_tmp_name = VAR_LINKS . $md5 . rand (0, 10000) . '.tmp';
|
||
$handle = fopen ($link_tmp_name, 'w');
|
||
fwrite ($handle,
|
||
$a['file_name'] . NL . $a['mime_type'] . NL . $size . NL .
|
||
$a['key'] . NL . $a['time'] . NL . $md5 . NL . $a['onetime'] . NL .
|
||
date ('U') . NL . $a['ip'] . NL . $delete_link_code . NL . ($crypted ? 'C' : 'O'));
|
||
fclose ($handle);
|
||
$md5_link = substr(base_16_to_64 (md5_file ($link_tmp_name)), 0, $link_name_length);
|
||
$l = s2p ("$md5_link");
|
||
if (!@mkdir (VAR_LINKS . $l, 0755, true) ||
|
||
!rename ($link_tmp_name, VAR_LINKS . $l . $md5_link))
|
||
echo "Error";
|
||
|
||
/* Clean async upload. */
|
||
jirafeau_async_delete ($ref);
|
||
return $md5_link . NL . $delete_link_code . NL . urlencode($crypt_key);
|
||
}
|
||
|
||
/**
|
||
* Delete a block.
|
||
* @param $id identifier of the block.
|
||
*/
|
||
function
|
||
jirafeau_block_delete_ ($id)
|
||
{
|
||
$p = VAR_BLOCK . s2p ($id);
|
||
if (!file_exists ($p))
|
||
return;
|
||
|
||
if (file_exists ($p . $id))
|
||
unlink ($p . $id);
|
||
if (file_exists ($p . $id . '_infos'))
|
||
unlink ($p . $id . '_infos');
|
||
$parse = $p;
|
||
$scan = array();
|
||
while (file_exists ($parse)
|
||
&& ($scan = scandir ($parse))
|
||
&& count ($scan) == 2 // '.' and '..' folders => empty.
|
||
&& basename ($parse) != basename (VAR_BLOCK))
|
||
{
|
||
rmdir ($parse);
|
||
$parse = substr ($parse, 0, strlen($parse) - strlen(basename ($parse)) - 1);
|
||
}
|
||
}
|
||
|
||
/**
|
||
* Create a file filled with zeros.
|
||
* @param $size size of the file.
|
||
* @return a string corresponding to an id or the string "Error"
|
||
*/
|
||
function
|
||
jirafeau_block_init ($size)
|
||
{
|
||
if (!ctype_digit ($size) || $size <= 0)
|
||
return "Error";
|
||
|
||
/* Create folder. */
|
||
$id;
|
||
do
|
||
{
|
||
$id = jirafeau_gen_random (32);
|
||
$p = VAR_BLOCK . s2p ($id);
|
||
} while (file_exists ($p));
|
||
@mkdir ($p, 0755, true);
|
||
if (!file_exists ($p))
|
||
{
|
||
echo "Error";
|
||
return;
|
||
}
|
||
|
||
/* Create block. */
|
||
$p .= $id;
|
||
$h = fopen ($p, 'w');
|
||
$fill = str_repeat ("\0", 1024);
|
||
for ($cnt = 0; $cnt < $size; $cnt += 1024)
|
||
{
|
||
if ($size - $cnt < 1024)
|
||
$fill = str_repeat ("\0", $size - $cnt);
|
||
if (fwrite ($h, $fill) === false)
|
||
{
|
||
fclose ($h);
|
||
jirafeau_block_delete_ ($id);
|
||
return "Error";
|
||
}
|
||
}
|
||
fclose ($h);
|
||
|
||
/* Generate a write/delete code. */
|
||
$code = jirafeau_gen_random (12);
|
||
|
||
/* Add block infos. */
|
||
if (file_put_contents ($p . '_infos', date ('U') . NL . $size . NL . $code) === FALSE)
|
||
{
|
||
jirafeau_block_delete_ ($id);
|
||
return "Error";
|
||
}
|
||
|
||
return $id . NL . $code;
|
||
}
|
||
|
||
/** Get block size in bytes.
|
||
* @param $id identifier of the block
|
||
* @return block size in bytes
|
||
*/
|
||
function
|
||
jirafeau_block_get_size ($id)
|
||
{
|
||
$p = VAR_BLOCK . s2p ($id) . $id;
|
||
if (!file_exists ($p))
|
||
return "Error";
|
||
|
||
/* Check date. */
|
||
$f = file ($p . '_infos');
|
||
$date = trim ($f[0]);
|
||
$block_size = trim ($f[1]);
|
||
$stored_code = trim ($f[2]);
|
||
/* Update date. */
|
||
if (date ('U') - $date > JIRAFEAU_HOUR
|
||
&& date ('U') - $date < JIRAFEAU_MONTH)
|
||
{
|
||
if (file_put_contents ($p . '_infos', date ('U') . NL . $block_size . NL . $stored_code) === FALSE)
|
||
{
|
||
jirafeau_block_delete_ ($id);
|
||
return "Error";
|
||
}
|
||
}
|
||
/* Remove data. */
|
||
elseif (date ('U') - $date >= JIRAFEAU_MONTH)
|
||
{
|
||
echo date ('U'). " $date ";
|
||
jirafeau_block_delete_ ($id);
|
||
return "Error";
|
||
}
|
||
|
||
return $block_size;
|
||
}
|
||
|
||
/**
|
||
* Read some data in a block.
|
||
* @param $id identifier of the block
|
||
* @param $start where to read data (starting from zero).
|
||
* @param $length length to read.
|
||
* @return echo data
|
||
*/
|
||
function
|
||
jirafeau_block_read ($id, $start, $length)
|
||
{
|
||
if (!ctype_digit ($start) || $start < 0
|
||
|| !ctype_digit ($length) || $length <= 0)
|
||
{
|
||
echo "Error";
|
||
return;
|
||
}
|
||
|
||
$p = VAR_BLOCK . s2p ($id) . $id;
|
||
if (!file_exists ($p))
|
||
{
|
||
echo "Error";
|
||
return;
|
||
}
|
||
|
||
/* Check date. */
|
||
$f = file ($p . '_infos');
|
||
$date = trim ($f[0]);
|
||
$block_size = trim ($f[1]);
|
||
$stored_code = trim ($f[2]);
|
||
/* Update date. */
|
||
if (date ('U') - $date > JIRAFEAU_HOUR
|
||
&& date ('U') - $date < JIRAFEAU_MONTH)
|
||
{
|
||
if (file_put_contents ($p . '_infos', date ('U') . NL . $block_size . NL . $stored_code) === FALSE)
|
||
{
|
||
jirafeau_block_delete_ ($id);
|
||
echo "Error";
|
||
return;
|
||
}
|
||
}
|
||
/* Remove data. */
|
||
elseif (date ('U') - $date >= JIRAFEAU_MONTH)
|
||
{
|
||
echo date ('U'). " $date ";
|
||
jirafeau_block_delete_ ($id);
|
||
echo "Error";
|
||
return;
|
||
}
|
||
|
||
if ($start + $length > $block_size)
|
||
{
|
||
echo "Error";
|
||
return;
|
||
}
|
||
|
||
/* Read content. */
|
||
header ('Content-Length: ' . $length);
|
||
header ('Content-Disposition: attachment');
|
||
|
||
$r = fopen ($p, 'r');
|
||
if (fseek ($r, $start) != 0)
|
||
{
|
||
echo "Error";
|
||
return;
|
||
}
|
||
$c = 1024;
|
||
for ($cnt = 0; $cnt < $length && !feof ($r); $cnt += 1024)
|
||
{
|
||
if ($length - $cnt < 1024)
|
||
$c = $length - $cnt;
|
||
print fread ($r, $c);
|
||
ob_flush();
|
||
}
|
||
fclose ($r);
|
||
}
|
||
|
||
/**
|
||
* Write some data in a block.
|
||
* @param $id identifier of the block
|
||
* @param $start where to writing data (starting from zero).
|
||
* @param $data data to write.
|
||
* @param $code code to allow writing.
|
||
* @return string "Ok" or string "Error".
|
||
*/
|
||
function
|
||
jirafeau_block_write ($id, $start, $data, $code)
|
||
{
|
||
if (!ctype_digit ($start) || $start < 0
|
||
|| strlen ($code) == 0)
|
||
return "Error";
|
||
|
||
$p = VAR_BLOCK . s2p ($id) . $id;
|
||
if (!file_exists ($p))
|
||
return "Error";
|
||
|
||
/* Check date. */
|
||
$f = file ($p . '_infos');
|
||
$date = trim ($f[0]);
|
||
$block_size = trim ($f[1]);
|
||
$stored_code = trim ($f[2]);
|
||
/* Update date. */
|
||
if (date ('U') - $date > JIRAFEAU_HOUR
|
||
&& date ('U') - $date < JIRAFEAU_MONTH)
|
||
{
|
||
if (file_put_contents ($p . '_infos', date ('U') . NL . $block_size . NL . $stored_code) === FALSE)
|
||
{
|
||
jirafeau_block_delete_ ($id);
|
||
return "Error";
|
||
}
|
||
}
|
||
/* Remove data. */
|
||
elseif (date ('U') - $date >= JIRAFEAU_MONTH)
|
||
{
|
||
jirafeau_block_delete_ ($id);
|
||
return "Error";
|
||
}
|
||
|
||
/* Check code. */
|
||
if ($stored_code != $code)
|
||
{
|
||
echo "Error";
|
||
return;
|
||
}
|
||
|
||
/* Check data. */
|
||
$size = $data['size'];
|
||
if ($size <= 0)
|
||
return "Error";
|
||
if ($start + $size > $block_size)
|
||
return "Error";
|
||
|
||
/* Open data. */
|
||
$r = fopen ($data['tmp_name'], 'r');
|
||
|
||
/* Open Block. */
|
||
$w = fopen ($p, 'r+');
|
||
if (fseek ($w, $start) != 0)
|
||
return "Error";
|
||
|
||
/* Write content. */
|
||
$c = 1024;
|
||
for ($cnt = 0; $cnt <= $size && !feof ($w); $cnt += 1024)
|
||
{
|
||
if ($size - $cnt < 1024)
|
||
$c = $size - $cnt;
|
||
$d = fread ($r, $c);
|
||
fwrite ($w, $d);
|
||
}
|
||
fclose ($r);
|
||
fclose ($w);
|
||
unlink ($data['tmp_name']);
|
||
return "Ok";
|
||
}
|
||
|
||
/**
|
||
* Delete a block.
|
||
* @param $id identifier of the block.
|
||
* @param $code code to allow writing.
|
||
* @return string "Ok" or string "Error".
|
||
*/
|
||
function
|
||
jirafeau_block_delete ($id, $code)
|
||
{
|
||
$p = VAR_BLOCK . s2p ($id) . $id;
|
||
|
||
if (!file_exists ($p))
|
||
return "Error";
|
||
|
||
$f = file ($p . '_infos');
|
||
$date = trim ($f[0]);
|
||
$block_size = trim ($f[1]);
|
||
$stored_code = trim ($f[2]);
|
||
|
||
if ($code != $stored_code)
|
||
return "Error";
|
||
|
||
jirafeau_block_delete_ ($id);
|
||
return "Ok";
|
||
}
|
||
|
||
/**
|
||
* Clean old unused blocks.
|
||
* @return number of cleaned blocks.
|
||
*/
|
||
function
|
||
jirafeau_admin_clean_block ()
|
||
{
|
||
$count = 0;
|
||
/* Get all blocks. */
|
||
$stack = array (VAR_BLOCK);
|
||
while (($d = array_shift ($stack)) && $d != NULL)
|
||
{
|
||
$dir = scandir ($d);
|
||
|
||
foreach ($dir as $node)
|
||
{
|
||
if (strcmp ($node, '.') == 0 || strcmp ($node, '..') == 0)
|
||
continue;
|
||
|
||
if (is_dir ($d . $node))
|
||
{
|
||
/* Push new found directory. */
|
||
$stack[] = $d . $node . '/';
|
||
}
|
||
elseif (is_file ($d . $node) && preg_match ('/\_infos/i', "$node"))
|
||
{
|
||
/* Read block informations. */
|
||
$f = file ($d . $node);
|
||
$date = trim ($f[0]);
|
||
$block_size = trim ($f[1]);
|
||
if (date ('U') - $date >= JIRAFEAU_MONTH)
|
||
{
|
||
jirafeau_block_delete_ (substr($node, 0, -6));
|
||
$count++;
|
||
}
|
||
}
|
||
}
|
||
}
|
||
return $count;
|
||
}
|
||
|
||
function
|
||
jirafeau_crypt_create_iv($base, $size)
|
||
{
|
||
$iv = '';
|
||
while (strlen ($iv) < $size)
|
||
$iv = $iv . $base;
|
||
$iv = substr($iv, 0, $size);
|
||
return $iv;
|
||
}
|
||
|
||
/**
|
||
* Crypt file and returns decrypt key.
|
||
* @param $fp_src file path to the file to crypt.
|
||
* @param $fp_dst file path to the file to write crypted file (could be the same).
|
||
* @return decrypt key composed of the key and the iv separated by a point ('.')
|
||
*/
|
||
function
|
||
jirafeau_encrypt_file ($fp_src, $fp_dst)
|
||
{
|
||
$fs = filesize ($fp_src);
|
||
if ($fs === false || $fs == 0 || !extension_loaded('mcrypt'))
|
||
return '';
|
||
|
||
/* Prepare module. */
|
||
$m = mcrypt_module_open('rijndael-256', '', 'ofb', '');
|
||
/* Generate key. */
|
||
$crypt_key = jirafeau_gen_random (10);
|
||
$md5_key = md5($crypt_key);
|
||
$iv = jirafeau_crypt_create_iv ($md5_key, mcrypt_enc_get_iv_size($m));
|
||
/* Init module. */
|
||
mcrypt_generic_init($m, $md5_key, $iv);
|
||
/* Crypt file. */
|
||
$r = fopen ($fp_src, 'r');
|
||
$w = fopen ($fp_dst, 'c');
|
||
while (!feof ($r))
|
||
{
|
||
$enc = mcrypt_generic($m, fread ($r, 1024));
|
||
if (fwrite ($w, $enc) === false)
|
||
return '';
|
||
}
|
||
fclose ($r);
|
||
fclose ($w);
|
||
/* Cleanup. */
|
||
mcrypt_generic_deinit($m);
|
||
mcrypt_module_close($m);
|
||
return $crypt_key;
|
||
}
|
||
|
||
/**
|
||
* Decrypt file.
|
||
* @param $fp_src file path to the file to decrypt.
|
||
* @param $fp_dst file path to the file to write decrypted file (could be the same).
|
||
* @param $k string composed of the key and the iv separated by a point ('.')
|
||
* @return key used to decrypt. a string of length 0 is returned if failed.
|
||
*/
|
||
function
|
||
jirafeau_decrypt_file ($fp_src, $fp_dst, $k)
|
||
{
|
||
$fs = filesize ($fp_src);
|
||
if ($fs === false || $fs == 0 || !extension_loaded('mcrypt'))
|
||
return false;
|
||
|
||
/* Init module */
|
||
$m = mcrypt_module_open('rijndael-256', '', 'ofb', '');
|
||
/* Extract key and iv. */
|
||
$crypt_key = $k;
|
||
$md5_key = md5($crypt_key);
|
||
$iv = jirafeau_crypt_create_iv ($md5_key, mcrypt_enc_get_iv_size($m));
|
||
/* Decrypt file. */
|
||
$r = fopen ($fp_src, 'r');
|
||
$w = fopen ($fp_dst, 'c');
|
||
while (!feof ($r))
|
||
{
|
||
$dec = mdecrypt_generic($m, fread ($r, 1024));
|
||
if (fwrite ($w, $dec) === false)
|
||
return false;
|
||
}
|
||
fclose ($r);
|
||
fclose ($w);
|
||
/* Cleanup. */
|
||
mcrypt_generic_deinit($m);
|
||
mcrypt_module_close($m);
|
||
return true;
|
||
}
|
||
|
||
?>
|