X-Git-Url: https://git.p6c8.net/jirafeau_project.git/blobdiff_plain/0a5462c3311b4541a858b8e719ae8548877c7a62..00b364b18e137260dd0445ac903010eddafc3df0:/lib/functions.php?ds=inline diff --git a/lib/functions.php b/lib/functions.php old mode 100755 new mode 100644 index c07b6c9..3a304a4 --- a/lib/functions.php +++ b/lib/functions.php @@ -2,7 +2,7 @@ /* * Jirafeau, your web file repository * Copyright (C) 2008 Julien "axolotl" BERNARD - * Copyright (C) 2012 Jerome Jutteau + * Copyright (C) 2015 Jerome Jutteau * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU Affero General Public License as @@ -90,6 +90,18 @@ jirafeau_gen_random ($l) return $code; } +function is_ssl() { + if ( isset($_SERVER['HTTPS']) ) { + if ( 'on' == strtolower($_SERVER['HTTPS']) ) + return true; + if ( '1' == $_SERVER['HTTPS'] ) + return true; + } elseif ( isset($_SERVER['SERVER_PORT']) && ( '443' == $_SERVER['SERVER_PORT'] ) ) { + return true; + } + return false; +} + function jirafeau_human_size ($octets) { @@ -122,10 +134,11 @@ function jirafeau_clean_rm_file ($md5) { $p = s2p ("$md5"); - if (file_exists (VAR_FILES . $p . $md5)) - unlink (VAR_FILES . $p . $md5); - if (file_exists (VAR_FILES . $p . $md5 . '_count')) - unlink (VAR_FILES . $p . $md5 . '_count'); + $f = VAR_FILES . $p . $md5; + if (file_exists ($f) && is_file ($f)) + unlink ($f); + if (file_exists ($f . '_count') && is_file ($f . '_count')) + unlink ($f . '_count'); $parse = VAR_FILES . $p; $scan = array(); while (file_exists ($parse) @@ -307,13 +320,14 @@ jirafeau_delete_file ($md5) * @param $time the time of validity of the file * @param $ip uploader's ip * @param $crypt boolean asking to crypt or not + * @param $link_name_length size of the link name * @returns an array containing some information * 'error' => information on possible errors * 'link' => the link name of the uploaded file * 'delete_link' => the link code to delete file */ function -jirafeau_upload ($file, $one_time_download, $key, $time, $ip, $crypt) +jirafeau_upload ($file, $one_time_download, $key, $time, $ip, $crypt, $link_name_length) { if (empty ($file['tmp_name']) || !is_uploaded_file ($file['tmp_name'])) { @@ -331,7 +345,9 @@ jirafeau_upload ($file, $one_time_download, $key, $time, $ip, $crypt) /* Crypt file if option is enabled. */ $crypted = false; $crypt_key = ''; - if ($crypt == true && extension_loaded('mcrypt')) + if ($crypt == true && !(extension_loaded('mcrypt') == true)) + error_log ("PHP extension mcrypt not loaded, won't encrypt in Jirafeau"); + if ($crypt == true && extension_loaded('mcrypt') == true) { $crypt_key = jirafeau_encrypt_file ($file['tmp_name'], $file['tmp_name']); if (strlen($crypt_key) > 0) @@ -379,7 +395,7 @@ jirafeau_upload ($file, $one_time_download, $key, $time, $ip, $crypt) fclose ($handle); /* Create delete code. */ - $delete_link_code = jirafeau_gen_random (8); + $delete_link_code = jirafeau_gen_random (5); /* md5 password or empty. */ $password = ''; @@ -387,14 +403,14 @@ jirafeau_upload ($file, $one_time_download, $key, $time, $ip, $crypt) $password = md5 ($key); /* create link file */ - $link_tmp_name = VAR_LINKS . $md5 . rand (0, 10000) . ' .tmp'; + $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); - $md5_link = base_16_to_64 (md5_file ($link_tmp_name)); + $md5_link = substr(base_16_to_64 (md5_file ($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 . $md5_link)) @@ -437,7 +453,7 @@ jirafeau_is_viewable ($mime) if (!empty ($mime)) { /* Actually, verify if mime-type is an image or a text. */ - $viewable = array ('image', 'text'); + $viewable = array ('image', 'text', 'video', 'audio'); $decomposed = explode ('/', $mime); return in_array ($decomposed[0], $viewable); } @@ -489,10 +505,10 @@ show_errors () } } -function check_errors () +function check_errors ($cfg) { if (file_exists (JIRAFEAU_ROOT . 'install.php') - && !file_exists (JIRAFEAU_ROOT . 'lib/config.local.php')) + && !($cfg['installation_done'] === true)) { header('Location: install.php'); exit; @@ -510,15 +526,6 @@ function check_errors () if (!is_writable (VAR_ASYNC)) add_error (t('The async directory is not writable!'), VAR_ASYNC); - - if (!is_writable (VAR_BLOCK)) - add_error (t('The block directory is not writable!'), VAR_BLOCK); - - /* Check if the install.php script is still in the directory. */ - if (file_exists (JIRAFEAU_ROOT . 'install.php')) - add_error (t('Installer script still present'), - t('Please make sure to delete the installer script ' . - '"install.php" before continuing.')); } /** @@ -547,6 +554,8 @@ jirafeau_get_link ($hash) $out['link_code'] = trim ($c[9]); if (trim ($c[10]) == 'C') $out['crypted'] = true; + else + $out['crypted'] = false; return $out; } @@ -882,10 +891,11 @@ jirafeau_async_push ($ref, $data, $code) * @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, $crypt) +jirafeau_async_end ($ref, $code, $crypt, $link_name_length) { /* Get async infos. */ $a = jirafeau_get_async_ref ($ref); @@ -900,9 +910,9 @@ jirafeau_async_end ($ref, $code, $crypt) $crypted = false; $crypt_key = ''; - if ($crypt == true && extension_loaded('mcrypt')) + if ($crypt == true && extension_loaded('mcrypt') == true) { - $cypt_key = jirafeau_encrypt_file ($p, $p); + $crypt_key = jirafeau_encrypt_file ($p, $p); if (strlen($crypt_key) > 0) $crypted = true; } @@ -910,7 +920,7 @@ jirafeau_async_end ($ref, $code, $crypt) $md5 = md5_file ($p); $size = filesize($p); $np = s2p ($md5); - $delete_link_code = jirafeau_gen_random (8); + $delete_link_code = jirafeau_gen_random (5); /* File already exist ? */ if (!file_exists (VAR_FILES . $np)) @@ -931,14 +941,14 @@ jirafeau_async_end ($ref, $code, $crypt) fclose ($handle); /* Create link. */ - $link_tmp_name = VAR_LINKS . $md5 . rand (0, 10000) . ' .tmp'; + $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); - $md5_link = base_16_to_64 (md5_file ($link_tmp_name)); + $md5_link = substr(base_16_to_64 (md5_file ($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 . $md5_link)) @@ -949,344 +959,14 @@ jirafeau_async_end ($ref, $code, $crypt) 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) +jirafeau_crypt_create_iv($base, $size) { - $p = VAR_BLOCK . s2p ($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; + $iv = ''; + while (strlen ($iv) < $size) + $iv = $iv . $base; + $iv = substr($iv, 0, $size); + return $iv; } /** @@ -1299,17 +979,17 @@ function jirafeau_encrypt_file ($fp_src, $fp_dst) { $fs = filesize ($fp_src); - if ($fs === false || $fs == 0 || !extension_loaded('mcrypt')) + if ($fs === false || $fs == 0 || !(extension_loaded('mcrypt') == true)) return ''; /* Prepare module. */ $m = mcrypt_module_open('rijndael-256', '', 'ofb', ''); - $iv = mcrypt_create_iv(mcrypt_enc_get_iv_size($m), MCRYPT_DEV_URANDOM); /* Generate key. */ - $ks = mcrypt_enc_get_key_size($m); - $key = substr(md5(jirafeau_gen_random(12)), 0, $ks); + $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, $key, $iv); + mcrypt_generic_init($m, $md5_key, $iv); /* Crypt file. */ $r = fopen ($fp_src, 'r'); $w = fopen ($fp_dst, 'c'); @@ -1324,7 +1004,7 @@ jirafeau_encrypt_file ($fp_src, $fp_dst) /* Cleanup. */ mcrypt_generic_deinit($m); mcrypt_module_close($m); - return $key . "." . base64_encode($iv); + return $crypt_key; } /** @@ -1338,16 +1018,15 @@ function jirafeau_decrypt_file ($fp_src, $fp_dst, $k) { $fs = filesize ($fp_src); - if ($fs === false || $fs == 0 || !extension_loaded('mcrypt')) + if ($fs === false || $fs == 0 || !(extension_loaded('mcrypt') == true)) return false; - /* Extract key and iv. */ - $ex = explode (".", $k); - $key = $ex[0]; - $iv = base64_decode($ex[1]); /* Init module */ $m = mcrypt_module_open('rijndael-256', '', 'ofb', ''); - mcrypt_generic_init($m, $key, $iv); + /* 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'); @@ -1365,4 +1044,27 @@ jirafeau_decrypt_file ($fp_src, $fp_dst, $k) return true; } -?> +/** + * Check if Jirafeau is password protected for visitors. + * @return true if Jirafeau is password protected, false otherwise. + */ +function jirafeau_has_upload_password ($cfg) +{ + return count ($cfg['upload_password']) > 0; +} + +/** + * Challenge password for a visitor. + * @param $password password to be challenged + * @return true if password is valid, false otherwise. + */ +function jirafeau_challenge_upload_password ($cfg, $password) +{ + if (!jirafeau_has_upload_password($cfg)) + return false; + forEach ($cfg['upload_password'] as $p) + if ($password == $p) + return true; + return false; +} +