X-Git-Url: https://git.p6c8.net/jirafeau.git/blobdiff_plain/fbf2b5f1a5016c8ecfa27d474d4c22ffd22919f9..02c483d076b6eecc1cd86ccd73c0aaad9ac07ed5:/lib/functions.php diff --git a/lib/functions.php b/lib/functions.php old mode 100755 new mode 100644 index f1f8965..c2cad46 --- 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 @@ -98,6 +98,9 @@ function is_ssl() { return true; } elseif ( isset($_SERVER['SERVER_PORT']) && ( '443' == $_SERVER['SERVER_PORT'] ) ) { return true; + } elseif (isset($_SERVER['HTTP_X_FORWARDED_PROTO'])) { + if ($_SERVER['HTTP_X_FORWARDED_PROTO'] == 'https') + return true; } return false; } @@ -345,7 +348,9 @@ jirafeau_upload ($file, $one_time_download, $key, $time, $ip, $crypt, $link_name /* 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) @@ -441,7 +446,7 @@ jirafeau_upload ($file, $one_time_download, $key, $time, $ip, $crypt, $link_name } /** - * tells if a mime-type is viewable in a browser + * Tells if a mime-type is viewable in a browser * @param $mime the mime type * @returns a boolean telling if a mime type is viewable */ @@ -451,7 +456,7 @@ jirafeau_is_viewable ($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], $viewable); } @@ -503,10 +508,10 @@ show_errors () } } -function check_errors () +function check_errors ($cfg) { if (file_exists (JIRAFEAU_ROOT . 'install.php') - && !file_exists (JIRAFEAU_ROOT . 'lib/config.local.php')) + && !($cfg['installation_done'] === true)) { header('Location: install.php'); exit; @@ -524,9 +529,6 @@ function check_errors () if (!is_writable (VAR_ASYNC)) add_error (t('The async directory is not writable!'), VAR_ASYNC); - - if (!is_writable (VAR_BLOCK)) - add_error (t('The block directory is not writable!'), VAR_BLOCK); } /** @@ -555,6 +557,8 @@ jirafeau_get_link ($hash) $out['link_code'] = trim ($c[9]); if (trim ($c[10]) == 'C') $out['crypted'] = true; + else + $out['crypted'] = false; return $out; } @@ -840,10 +844,11 @@ jirafeau_async_init ($filename, $type, $one_time, $key, $time, $ip) * @param $ref asynchronous upload reference * @param $file piece of data * @param $code client code for this operation + * @param $max_file_size maximum allowed file size * @return a string containing a next code to use or the string "Error" */ function -jirafeau_async_push ($ref, $data, $code) +jirafeau_async_push ($ref, $data, $code, $max_file_size) { /* Get async infos. */ $a = jirafeau_get_async_ref ($ref); @@ -857,9 +862,21 @@ jirafeau_async_push ($ref, $data, $code) $p = s2p ($ref); + /* File path. */ + $r_path = $data['tmp_name']; + $w_path = VAR_ASYNC . $p . $ref . '_data'; + + /* Check that file size is not above upload limit. */ + if ($max_file_size > 0 && + filesize ($r_path) + filesize ($w_path) > $max_file_size * 1024 * 1024) + { + jirafeau_async_delete ($ref); + return "Error"; + } + /* Concatenate data. */ - $r = fopen ($data['tmp_name'], 'r'); - $w = fopen (VAR_ASYNC . $p . $ref . '_data', 'a'); + $r = fopen ($r_path, 'r'); + $w = fopen ($w_path, 'a'); while (!feof ($r)) { if (fwrite ($w, fread ($r, 1024)) === false) @@ -872,7 +889,7 @@ jirafeau_async_push ($ref, $data, $code) } fclose ($r); fclose ($w); - unlink ($data['tmp_name']); + unlink ($r_path); /* Update async file. */ $code = jirafeau_gen_random (4); @@ -890,7 +907,7 @@ jirafeau_async_push ($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 + * @param $link_name_length link name length * @return a string containing the download reference followed by a delete code or the string "Error" */ function @@ -909,7 +926,7 @@ jirafeau_async_end ($ref, $code, $crypt, $link_name_length) $crypted = false; $crypt_key = ''; - if ($crypt == true && extension_loaded('mcrypt')) + if ($crypt == true && extension_loaded('mcrypt') == true) { $crypt_key = jirafeau_encrypt_file ($p, $p); if (strlen($crypt_key) > 0) @@ -958,346 +975,6 @@ jirafeau_async_end ($ref, $code, $crypt, $link_name_length) 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, $size) { @@ -1318,7 +995,7 @@ function jirafeau_encrypt_file ($fp_src, $fp_dst) { $fs = filesize ($fp_src); - if ($fs === false || $fs == 0 || !extension_loaded('mcrypt')) + if ($fs === false || $fs == 0 || !(extension_loaded('mcrypt') == true)) return ''; /* Prepare module. */ @@ -1357,7 +1034,7 @@ function jirafeau_decrypt_file ($fp_src, $fp_dst, $k) { $fs = filesize ($fp_src); - if ($fs === false || $fs == 0 || !extension_loaded('mcrypt')) + if ($fs === false || $fs == 0 || !(extension_loaded('mcrypt') == true)) return false; /* Init module */ @@ -1383,4 +1060,27 @@ jirafeau_decrypt_file ($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; +} +