X-Git-Url: https://git.p6c8.net/jirafeau_project.git/blobdiff_plain/53517d3b939f85007001beb3a01a32b032a9070b..117541049ca0a09a13a40fc0a5e686e334334fae:/lib/functions.php?ds=sidebyside diff --git a/lib/functions.php b/lib/functions.php index 7b63148..fd0fe2c 100644 --- a/lib/functions.php +++ b/lib/functions.php @@ -2,7 +2,8 @@ /* * Jirafeau, your web file repository * Copyright (C) 2008 Julien "axolotl" BERNARD - * Copyright (C) 2012 Jerome Jutteau + * Copyright (C) 2015 Jerome Jutteau + * Copyright (C) 2015 Nicola Spanti (RyDroid) * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU Affero General Public License as @@ -15,44 +16,263 @@ * GNU Affero General Public License for more details. * * You should have received a copy of the GNU Affero General Public License - * along with this program. If not, see . + * along with this program. If not, see . */ + +/** + * Transform a string in a path by separating each letters by a '/'. + * @return path finishing with a '/' + */ +function s2p($s) +{ + $block_size = 8; + $p = ''; + for ($i = 0; $i < strlen($s); $i++) { + $p .= $s[$i]; + if (($i + 1) % $block_size == 0) { + $p .= '/'; + } + } + if (strlen($s) % $block_size != 0) { + $p .= '/'; + } + return $p; +} + +/** + * Convert base 16 to base 64 + * @returns A string based on 64 characters (0-9, a-z, A-Z, "-" and "_") + */ +function base_16_to_64($num) +{ + $m = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ-_'; + $hex2bin = array('0000', # 0 + '0001', # 1 + '0010', # 2 + '0011', # 3 + '0100', # 4 + '0101', # 5 + '0110', # 6 + '0111', # 7 + '1000', # 8 + '1001', # 9 + '1010', # a + '1011', # b + '1100', # c + '1101', # d + '1110', # e + '1111'); # f + $o = ''; + $b = ''; + $i = 0; + # Convert long hex string to bin. + $size = strlen($num); + for ($i = 0; $i < $size; $i++) { + $b .= $hex2bin[hexdec($num[$i])]; + } + # Convert long bin to base 64. + $size *= 4; + for ($i = $size - 6; $i >= 0; $i -= 6) { + $o = $m[bindec(substr($b, $i, 6))] . $o; + } + # Some few bits remaining ? + if ($i < 0 && $i > -6) { + $o = $m[bindec(substr($b, 0, $i + 6))] . $o; + } + return $o; +} + +/** + * Generate a random code. + * @param $l code length + * @return random code. + */ +function jirafeau_gen_random($l) +{ + if ($l <= 0) { + return 42; + } + + $code=""; + for ($i = 0; $i < $l; $i++) { + $code .= dechex(rand(0, 15)); + } + + return $code; +} + +function jirafeau_gen_download_pass($length, $allowed_chars) +{ + if ($length <= 0) { + return false; + } + $pass=""; + for ($i = 0; $i < $length; $i++) { + $pass .= $allowed_chars[rand(0, strlen($allowed_chars) - 1)]; + } + + return $pass; +} + +function is_ssl() +{ + if (isset($_SERVER['HTTPS'])) { + if ('on' == strtolower($_SERVER['HTTPS']) || + '1' == $_SERVER['HTTPS']) { + return true; + } + } elseif (isset($_SERVER['SERVER_PORT']) && ('443' == $_SERVER['SERVER_PORT'])) { + return true; + } elseif (isset($_SERVER['HTTP_X_FORWARDED_PROTO'])) { + if ($_SERVER['HTTP_X_FORWARDED_PROTO'] == 'https') { + return true; + } + } + return false; +} + +function jirafeau_human_size($octets) +{ + $u = array('B', 'KB', 'MB', 'GB', 'TB'); + $o = max($octets, 0); + $p = min(floor(($o ? log($o) : 0) / log(1024)), count($u) - 1); + $o /= pow(1024, $p); + return round($o, 1) . $u[$p]; +} + +// Convert UTC timestamp to a datetime field +function jirafeau_get_datetimefield($timestamp) +{ + + $ts = date_create("@" . $timestamp); + $content = '' + . date_format($ts, 'Y-m-d H:i') . ' (GMT)'; + + return $content; +} + +function jirafeau_fatal_error($errorText, $cfg = array()) +{ + echo '

Error

' . $errorText . '

'; + require(JIRAFEAU_ROOT . 'lib/template/footer.php'); + exit; +} + +function jirafeau_clean_rm_link($link) +{ + $p = s2p("$link"); + if (file_exists(VAR_LINKS . $p . $link)) { + unlink(VAR_LINKS . $p . $link); + } + if (file_exists(VAR_LINKS . $p . $link . '_download')) { + unlink(VAR_LINKS . $p . $link . '_download'); + } + $parse = VAR_LINKS . $p; + $scan = array(); + while (file_exists($parse) + && ($scan = scandir($parse)) + && count($scan) == 2 // '.' and '..' folders => empty. + && basename($parse) != basename(VAR_LINKS)) { + rmdir($parse); + $parse = substr($parse, 0, strlen($parse) - strlen(basename($parse)) - 1); + } +} + +function jirafeau_clean_rm_file($hash) +{ + $p = s2p("$hash"); + $f = VAR_FILES . $p . $hash; + if (file_exists($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) + && ($scan = scandir($parse)) + && count($scan) == 2 // '.' and '..' folders => empty. + && basename($parse) != basename(VAR_FILES)) { + rmdir($parse); + $parse = substr($parse, 0, strlen($parse) - strlen(basename($parse)) - 1); + } +} + /** * transforms a php.ini string representing a value in an integer * @param $value the value from php.ini * @returns an integer for this value */ -function jirafeau_ini_to_bytes ($value) -{ - $modifier = substr ($value, -1); - $bytes = substr ($value, 0, -1); - switch (strtoupper ($modifier)) - { - case 'P': - $bytes *= 1024; - case 'T': - $bytes *= 1024; - case 'G': - $bytes *= 1024; - case 'M': - $bytes *= 1024; - case 'K': - $bytes *= 1024; - default: - break; +function jirafeau_ini_to_bytes($value) +{ + $modifier = substr($value, -1); + $bytes = substr($value, 0, -1); + switch (strtoupper($modifier)) { + default: + return intval($value); + break; + case 'P': + $bytes *= 1024; + // no break + case 'T': + $bytes *= 1024; + // no break + case 'G': + $bytes *= 1024; + // no break + case 'M': + $bytes *= 1024; + // no break + case 'K': + $bytes *= 1024; } return $bytes; } /** * gets the maximum upload size according to php.ini - * @returns the maximum upload size + * @returns the maximum upload size in bytes */ -function -jirafeau_get_max_upload_size () +function jirafeau_get_max_upload_size_bytes() { - return min (jirafeau_ini_to_bytes (ini_get ('post_max_size')), - jirafeau_ini_to_bytes (ini_get ('upload_max_filesize'))); + return min( + jirafeau_ini_to_bytes(ini_get('post_max_size')), + jirafeau_ini_to_bytes(ini_get('upload_max_filesize')) + ); +} + +/** + * gets the maximum upload size according to php.ini + * @returns the maximum upload size string + */ +function jirafeau_get_max_upload_size() +{ + return jirafeau_human_size(jirafeau_get_max_upload_size_bytes()); +} + +/** + * get the maximal upload size for a data chunk in async uploads + * @param max_upload_chunk_size_bytes + */ +function jirafeau_get_max_upload_chunk_size_bytes($max_upload_chunk_size_bytes = 0) +{ + if ($max_upload_chunk_size_bytes == 0) { + $size = jirafeau_get_max_upload_size_bytes(); + // Jirafeau must choose an arbitrary number as PHP config does not give any limit nor $max_upload_chunk_size_bytes + if ($size == 0) { + return 10000000; // 10MB + } + return $size; + } + $size = min( + jirafeau_get_max_upload_size_bytes(), + $max_upload_chunk_size_bytes + ); + if ($size == 0) { + return $max_upload_chunk_size_bytes; + } + return $size; } /** @@ -60,31 +280,22 @@ jirafeau_get_max_upload_size () * @param $code the error code * @returns a string explaining the error */ -function -jirafeau_upload_errstr ($code) +function jirafeau_upload_errstr($code) { - switch ($code) - { - case UPLOAD_ERR_INI_SIZE: - case UPLOAD_ERR_FORM_SIZE: - return t('Your file exceeds the maximum authorized file size. '); - break; + switch ($code) { + case UPLOAD_ERR_INI_SIZE: + case UPLOAD_ERR_FORM_SIZE: + return t('Your file exceeds the maximum authorized file size. '); - case UPLOAD_ERR_PARTIAL: - case UPLOAD_ERR_NO_FILE: - return - t - ('Your file was not uploaded correctly. You may succeed in retrying. '); - break; + case UPLOAD_ERR_PARTIAL: + case UPLOAD_ERR_NO_FILE: + return + t('Your file was not uploaded correctly. You may succeed in retrying. '); - case UPLOAD_ERR_NO_TMP_DIR: - case UPLOAD_ERR_CANT_WRITE: - case UPLOAD_ERR_EXTENSION: - return t('Internal error. You may not succeed in retrying. '); - break; - - default: - break; + case UPLOAD_ERR_NO_TMP_DIR: + case UPLOAD_ERR_CANT_WRITE: + case UPLOAD_ERR_EXTENSION: + return t('Internal error. You may not succeed in retrying. '); } return t('Unknown error. '); } @@ -93,69 +304,123 @@ jirafeau_upload_errstr ($code) * @param $link the link's name (hash) */ -function -jirafeau_delete ($link) +function jirafeau_delete_link($link) { - if (!file_exists ( VAR_LINKS . $link)) + $l = jirafeau_get_link($link); + if (!count($l)) { return; + } - $content = file (VAR_LINKS . $link); - $md5 = trim ($content[5]); - unlink (VAR_LINKS . $link); + jirafeau_clean_rm_link($link); + + $hash = $l['hash']; + $p = s2p("$hash"); $counter = 1; - if (file_exists ( VAR_FILES . $md5. '_count')) - { - $content = file ( VAR_FILES . $md5. '_count'); - $counter = trim ($content[0]); + if (file_exists(VAR_FILES . $p . $hash. '_count')) { + $content = file(VAR_FILES . $p . $hash. '_count'); + $counter = trim($content[0]); } $counter--; - if ($counter >= 1) - { - $handle = fopen ( VAR_FILES . $md5. '_count', 'w'); - fwrite ($handle, $counter); - fclose ($handle); + if ($counter >= 1) { + $handle = fopen(VAR_FILES . $p . $hash. '_count', 'w'); + fwrite($handle, $counter); + fclose($handle); } - if ($counter == 0) - { - if (file_exists (VAR_FILES . $md5)) - unlink ( VAR_FILES . $md5); - if (file_exists (VAR_FILES . $md5 . '_count')) - unlink ( VAR_FILES . $md5. '_count'); + if ($counter == 0) { + jirafeau_clean_rm_file($hash); } } /** * Delete a file and it's links. */ -function -jirafeau_delete_file ($md5) +function jirafeau_delete_file($hash) { $count = 0; - $links_dir = scandir (VAR_LINKS); - - foreach ($links_dir as $link) - { - if (strcmp ($link, '.') == 0 || strcmp ($link, '..') == 0 || - preg_match ('/\.tmp/i', "$link")) - continue; - /* Read link informations. */ - $l = jirafeau_get_link ($link); - if ($l['md5'] == $md5) - { - $count++; - jirafeau_delete ($link); + /* 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($l)) { + continue; + } + if ($l['hash'] == $hash) { + $count++; + jirafeau_delete_link($node); + } + } } } + jirafeau_clean_rm_file($hash); + return $count; +} - if (file_exists (VAR_FILES . $md5 . '_count')) - unlink (VAR_FILES . $md5. '_count'); - if (file_exists (VAR_FILES . $md5)) - unlink (VAR_FILES . $md5); - return $count; +/** hash file's content + * @param $method hash method, see 'file_hash' option. Valid methods are 'md5', 'md5_outside' or 'random' + * @param $file_path file to hash + * @returns hash string + */ +function jirafeau_hash_file($method, $file_path) +{ + switch ($method) { + case 'md5_outside': + return jirafeau_md5_outside($file_path); + case 'md5': + return md5_file($file_path); + case 'random': + return jirafeau_gen_random(32); + } + return md5_file($file_path); +} + +/** hash part of file: start, end and size. + * This is a partial file hash, faster but weaker. + * @param $file_path file to hash + * @returns hash string + */ +function jirafeau_md5_outside($file_path) +{ + $out = false; + $handle = fopen($file_path, "r"); + if ($handle === false) { + return false; + } + $size = filesize($file_path); + if ($size === false) { + goto err; + } + $first = fread($handle, 64); + if ($first === false) { + goto err; + } + if (fseek($handle, $size < 64 ? 0 : $size - 64) == -1) { + goto err; + } + $last = fread($handle, 64); + if ($last === false) { + goto err; + } + $out = md5($first . $last . $size); + err: + fclose($handle); + return $out; } /** @@ -164,143 +429,157 @@ jirafeau_delete_file ($md5) * @param $one_time_download is the file a one time download ? * @param $key if not empty, protect the file with this key * @param $time the time of validity of the file - * @param $cfg the current configuration * @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, $cfg, $ip) +function jirafeau_upload($file, $one_time_download, $key, $time, $ip, $crypt, $link_name_length, $file_hash_method) { - if (empty ($file['tmp_name']) || !is_uploaded_file ($file['tmp_name'])) - { + if (empty($file['tmp_name']) || !is_uploaded_file($file['tmp_name'])) { return (array( 'error' => - array ('has_error' => true, - 'why' => jirafeau_upload_errstr ($file['error'])), + array('has_error' => true, + 'why' => jirafeau_upload_errstr($file['error'])), 'link' => '', 'delete_link' => '')); } /* array representing no error */ - $noerr = array ('has_error' => false, 'why' => ''); + $noerr = array('has_error' => false, 'why' => ''); + + /* Crypt file if option is enabled. */ + $crypted = false; + $crypt_key = ''; + if ($crypt == true && !(extension_loaded('sodium') == true)) { + error_log("PHP extension sodium not loaded, won't encrypt in Jirafeau"); + } + if ($crypt == true && extension_loaded('sodium') == true) { + $crypt_key = jirafeau_encrypt_file($file['tmp_name'], $file['tmp_name'].'crypt'); + if (strlen($crypt_key) > 0) { + if (rename($file['tmp_name'].'crypt', $file['tmp_name']) === true) { + $crypted = true; + } + } + } - /* file informations */ - $md5 = md5_file ($file['tmp_name']); - $name = trim ($file['name']); + /* file information */ + $hash = jirafeau_hash_file($file_hash_method, $file['tmp_name']); + $name = str_replace(NL, '', trim($file['name'])); $mime_type = $file['type']; $size = $file['size']; /* does file already exist ? */ $rc = false; - if (file_exists ( VAR_FILES . $md5)) - { - $rc = unlink ($file['tmp_name']); - } - elseif (move_uploaded_file ($file['tmp_name'], VAR_FILES . $md5)) - { + $p = s2p("$hash"); + if (file_exists(VAR_FILES . $p . $hash)) { + $rc = unlink($file['tmp_name']); + } elseif ((file_exists(VAR_FILES . $p) || @mkdir(VAR_FILES . $p, 0755, true)) + && move_uploaded_file($file['tmp_name'], VAR_FILES . $p . $hash)) { $rc = true; } - if (!$rc) - { + if (!$rc) { return (array( 'error' => - array ('has_error' => true, - 'why' => t('Internal error during file creation. ')), + array('has_error' => true, + 'why' => t('INTERNAL_ERROR_DEL')), 'link' =>'', 'delete_link' => '')); } - /* increment or create count file */ + /* Increment or create count file. */ $counter = 0; - if (file_exists (VAR_FILES . $md5 . '_count')) - { - $content = file ( VAR_FILES . $md5. '_count'); - $counter = trim ($content[0]); + if (file_exists(VAR_FILES . $p . $hash . '_count')) { + $content = file(VAR_FILES . $p . $hash. '_count'); + $counter = trim($content[0]); } $counter++; - $handle = fopen ( VAR_FILES . $md5. '_count', 'w'); - fwrite ($handle, $counter); - fclose ($handle); + $handle = fopen(VAR_FILES . $p . $hash. '_count', 'w'); + fwrite($handle, $counter); + fclose($handle); /* Create delete code. */ - $delete_link_code = 0; - for ($i = 0; $i < 8; $i++) - $delete_link_code .= dechex (rand (0, 16)); + $delete_link_code = jirafeau_gen_random(5); - /* md5 password or empty */ + /* hash password or empty. */ $password = ''; - if (!empty ($key)) - $password = md5 ($key); + 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. - $delete_link_code . NL); - fclose ($handle); - $md5_link = md5_file ($link_tmp_name); - if (!rename ($link_tmp_name, VAR_LINKS . $md5_link)) - { - unlink ($link_tmp_name); - $counter--; - if ($counter >= 1) - { - $handle = fopen ( VAR_FILES . $md5. '_count', 'w'); - fwrite ($handle, $counter); - fclose ($handle); + $link_tmp_name = VAR_LINKS . $hash . rand(0, 10000) . '.tmp'; + $handle = fopen($link_tmp_name, 'w'); + fwrite( + $handle, + $name . NL. $mime_type . NL. $size . NL. $password . NL. $time . + NL . $hash. NL . ($one_time_download ? 'O' : 'R') . NL . time() . + NL . $ip . NL. $delete_link_code . NL . ($crypted ? 'C2' : 'O') + ); + fclose($handle); + $hash_link = substr(base_16_to_64(md5_file($link_tmp_name)), 0, $link_name_length); + $l = s2p("$hash_link"); + if (!@mkdir(VAR_LINKS . $l, 0755, true) || + !rename($link_tmp_name, VAR_LINKS . $l . $hash_link)) { + if (file_exists($link_tmp_name)) { + unlink($link_tmp_name); } - else - { - unlink ( VAR_FILES . $md5. '_count'); - unlink ( VAR_FILES . $md5); + + $counter--; + if ($counter >= 1) { + $handle = fopen(VAR_FILES . $p . $hash. '_count', 'w'); + fwrite($handle, $counter); + fclose($handle); + } else { + jirafeau_clean_rm_file($hash_link); } - return (array( + return array( 'error' => - array ('has_error' => true, + array('has_error' => true, 'why' => t('Internal error during file creation. ')), 'link' =>'', - 'delete_link' => '')); + 'delete_link' => ''); } - return (array ('error' => $noerr, - 'link' => $md5_link, - 'delete_link' => $delete_link_code)); + return array( 'error' => $noerr, + 'link' => $hash_link, + 'delete_link' => $delete_link_code, + 'crypt_key' => $crypt_key); } /** - * tells if a mime-type is viewable in a browser + * Tells if a mime-type is viewable in a browser * @param $mime the mime type * @returns a boolean telling if a mime type is viewable */ -function -jirafeau_is_viewable ($mime) +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], $viewable); + if (!empty($mime)) { + $viewable = array('image', 'video', 'audio'); + $decomposed = explode('/', $mime); + if (in_array($decomposed[0], $viewable) && strpos($mime, 'image/svg+xml') === false) { + return true; + } + $viewable = array('text/plain'); + if (in_array($mime, $viewable)) { + return true; + } } return false; } - // Error handling functions. //! Global array that contains all registered errors. -$error_list = array (); +$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, $description) +function add_error($title, $description) { global $error_list; $error_list[] = '

' . $title. '
' . $description. '

'; @@ -310,136 +589,185 @@ add_error ($title, $description) * Informs whether any error has been registered yet. * @return true if there are errors. */ -function -has_error () +function has_error() { global $error_list; - return !empty ($error_list); + return !empty($error_list); } /** * Displays all the errors. */ -function -show_errors () +function show_errors() { - if (has_error ()) - { + if (has_error()) { global $error_list; echo '
'; - foreach ($error_list as $error) - { + foreach ($error_list as $error) { echo $error; } echo '
'; } } +function check_errors($cfg) +{ + if (!($cfg['installation_done'] === true)) { + if (file_exists(JIRAFEAU_ROOT . 'install.php')) { + header('Location: install.php'); + exit; + } else { + add_error(t('INSTALL_FILE_NOT_FOUND_TITLE'), t('INSTALL_FILE_NOT_FOUND_DESC')); + } + } + + if (!is_writable(VAR_FILES)) { + add_error(t('FILE_DIR_W'), VAR_FILES); + } + + if (!is_writable(VAR_LINKS)) { + add_error(t('LINK_DIR_W'), VAR_LINKS); + } + + if (!is_writable(VAR_ASYNC)) { + add_error(t('ASYNC_DIR_W'), VAR_ASYNC); + } + + if ($cfg['enable_crypt'] && $cfg['litespeed_workaround']) { + add_error(t('INCOMPATIBLE_OPTIONS_W'), 'enable_crypt=true
litespeed_workaround=true'); + } + + if ($cfg['one_time_download'] && $cfg['litespeed_workaround']) { + add_error(t('INCOMPATIBLE_OPTIONS_W'), 'one_time_download=true
litespeed_workaround=true'); + } +} + /** - * Read link informations - * @return array containing informations. + * Read link information + * @return array containing information. */ -function -jirafeau_get_link ($hash) +function jirafeau_get_link($hash) { - $out = array (); - $link = VAR_LINKS . $hash; + $out = array(); + $link = VAR_LINKS . s2p("$hash") . $hash; - if (!file_exists ($link)) + 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]); - + } + + $c = file($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]); + $out['hash'] = trim($c[5]); + $out['onetime'] = trim($c[6]); + $out['upload_date'] = trim($c[7]); + $out['ip'] = trim($c[8]); + $out['link_code'] = trim($c[9]); + $out['crypted'] = trim($c[10]) == 'C2'; + $out['crypted_legacy'] = trim($c[10]) == 'C'; + return $out; } -function -jirafeau_human_size ($octets) -{ - $u = array ('B', 'KB', 'MB', 'GB', 'TB'); - $o = max ($octets, 0); - $p = min (floor (($o ? log ($o) : 0) / log (1024)), count ($u) - 1); - $o /= pow (1024, $p); - return round ($o, 1) . $u[$p]; -} - /** * List files in admin interface. */ -function -jirafeau_admin_list ($name, $file_hash, $link_hash) +function jirafeau_admin_list($name, $file_hash, $link_hash) { - $links_dir = scandir (VAR_LINKS); echo '
'; - if (!empty ($name)) - echo $name . ' '; - if (!empty ($file_hash)) - echo $file_hash . ' '; - if (!empty ($link_hash)) - echo $link_hash . ' '; - if (empty ($name) && empty ($file_hash) && empty ($link_hash)) - echo t('List all files'); + if (!empty($name)) { + echo t('FILENAME') . ": " . jirafeau_escape($name); + } + if (!empty($file_hash)) { + echo t('FILE') . ": " . jirafeau_escape($file_hash); + } + if (!empty($link_hash)) { + echo t('LINK') . ": " . jirafeau_escape($link_hash); + } + if (empty($name) && empty($file_hash) && empty($link_hash)) { + echo t('LS_FILES'); + } echo ''; echo ''; echo ''; - echo ''; - echo ''; - echo ''; - echo ''; - echo ''; - echo ''; - echo ''; - echo ''; + echo ''; + echo ''; echo ''; - foreach ($links_dir as $link) - { - if (strcmp ($link, '.') == 0 || strcmp ($link, '..') == 0 || - preg_match ('/\.tmp/i', "$link")) - continue; - /* Read link informations. */ - $l = jirafeau_get_link ($link); - - /* Filter. */ - if (!empty ($name) && $name != $l['file_name']) - continue; - if (!empty ($file_hash) && $file_hash != $l['md5']) - continue; - if (!empty ($link_hash) && $link_hash != $link) - continue; - - /* Print link informations. */ - echo ''; - echo ''; - echo ''; - echo ''; - echo ''; - echo ''; - echo ''; - echo ''; - echo ''; - echo ''; + + /* 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 information. */ + $l = jirafeau_get_link($node); + if (!count($l)) { + continue; + } + $ld = jirafeau_get_download_stats($node); + + /* Filter. */ + if (!empty($name) && !@preg_match("/$name/i", jirafeau_escape($l['file_name']))) { + continue; + } + if (!empty($file_hash) && $file_hash != $l['hash']) { + continue; + } + if (!empty($link_hash) && $link_hash != $node) { + continue; + } + /* Print link information. */ + echo ''; + echo ''; + echo ''; + } + } } echo '
' . t('Filename') . '' . t('Type') . '' . t('Size') . '' . t('Expire') . '' . t('Onetime') . '' . t('Upload date') . '' . t('Origin') . '' . t('Action') . '' . t('ACTION') . '
' . $l['file_name'] . '' . $l['mime_type'] . '' . jirafeau_human_size ($l['file_size']) . '' . ($l['time'] == -1 ? '' : strftime ('%c', $l['time'])) . - '' . $l['onetime'] . '' . strftime ('%c', $l['upload_date']) . '' . $l['ip'] . '' . - '
' . - '' . - '' . - '' . - '
' . - '
' . - '' . - '' . - '' . - '
' . - '
' . + '' . jirafeau_escape($l['file_name']) . '
'; + echo t('TYPE') . ': ' . jirafeau_escape($l['mime_type']) . '
'; + echo t('SIZE') . ': ' . jirafeau_human_size($l['file_size']) . '
'; + echo t('EXPIRE') . ': ' . ($l['time'] == -1 ? '∞' : jirafeau_get_datetimefield($l['time'])) . '
'; + echo t('ONETIME') . ': ' . ($l['onetime'] == 'O' ? 'Yes' : 'No') . '
'; + echo t('UPLOAD_DATE') . ': ' . jirafeau_get_datetimefield($l['upload_date']) . '
'; + if (strlen($l['ip']) > 0) { + echo t('ORIGIN') . ': ' . $l['ip'] . '
'; + } + echo t('DOWNLOAD_COUNT') . ': ' . $ld['count'] . '
'; + if ($ld['count'] > 0) { + echo t('DOWNLOAD_DATE') . ': ' . jirafeau_get_datetimefield($ld['date']) . '
'; + echo t('DOWNLOAD_IP') . ': ' . $ld['ip'] . '
'; + } + echo '		'; + echo '
' . + '' . + '' . + jirafeau_admin_csrf_field() . + '' . + '
' . + '
' . + '' . + '' . + jirafeau_admin_csrf_field() . + '' . + '
' . + '
' . + '' . + '' . + jirafeau_admin_csrf_field() . + '' . + '
' . + '
'; } @@ -448,27 +776,1103 @@ jirafeau_admin_list ($name, $file_hash, $link_hash) * Clean expired files. * @return number of cleaned files. */ -function -jirafeau_admin_clean () +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 information. */ + $l = jirafeau_get_link(basename($node)); + if (!count($l)) { + continue; + } + $p = s2p($l['hash']); + if ($l['time'] > 0 && $l['time'] < time() || // expired + !file_exists(VAR_FILES . $p . $l['hash']) || // invalid + !file_exists(VAR_FILES . $p . $l['hash'] . '_count')) { // invalid + jirafeau_delete_link($node); + $count++; + } + } + } + } + return $count; +} + + +/** + * Clean old async transfers. + * @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 information. */ + $a = jirafeau_get_async_ref(basename($node)); + if (!count($a)) { + continue; + } + /* Delete transfers older than 1 hour. */ + if (time() - $a['last_edited'] > 3600) { + jirafeau_async_delete(basename($node)); + $count++; + } + } + } + } + return $count; +} + +/** + * Better strval function for debug purposes + */ +function jirafeau_strval($value) +{ + if (gettype($value) == "boolean") { + return $value ? 'true' : 'false'; + } + return strval($value); +} + +/** + * Show file/folder permissions + */ +function jirafeau_fileperms($path) +{ + $out = substr(sprintf("%o", @fileperms($path)), -4) . ", "; + $out .= "read " . (is_readable($path) ? "OK" : "KO") . ", "; + $out .= "write " . (is_writable($path) ? "OK" : "KO"); + return $out; +} + +/** + * Show some useful informations for bug reporting. + */ +function jirafeau_admin_bug_report($cfg) +{ + $out = "
" . t('REPORTING_AN_ISSUE') . ""; + $out .= "If you have a problem related to Jirafeau, please open an issue, explain your problem in english and copy-paste the following content:

"; + + $out .= "# Jirafeau
"; + $out .= "- version: " . JIRAFEAU_VERSION . "
"; + $jirafeau_options = [ + 'debug', + 'file_hash', + 'litespeed_workaround', + 'store_uploader_ip', + 'installation_done', + 'enable_crypt', + 'preview', + 'maximal_upload_size', + 'store_uploader_ip', + 'max_upload_chunk_size_bytes' + ]; + foreach ($jirafeau_options as &$o) { + $v = $cfg[$o]; + $out .= "- $o: " . jirafeau_strval($v) . " (" . gettype($v) . ")
"; + } + $out .= "
"; + + $out .= "# PHP options
"; + $out .= "- php version: " . phpversion() . "
"; + $out .= "- sodium version: " . phpversion('sodium') . "
"; + $out .= "- mcrypt version: " . phpversion('mcrypt') . "
"; + $php_options = [ + 'post_max_size', + 'upload_max_filesize', + 'safe_mode', + 'max_execution_time', + 'max_input_time' + ]; + foreach ($php_options as &$o) { + $v = ini_get($o); + $out .= "- $o: " . jirafeau_strval($v) . " (" . gettype($v). ")
"; + } + $out .= "- can set_time_limit: " . (set_time_limit(0) ? "yes" : "no") . "
"; + $out .= "
"; + + $out .= "# File permissions
"; + $out .= "- 'var' folder permissions: " . jirafeau_fileperms($cfg['var_root']) . "
"; + $out .= "- 'file' folder permissions: " . jirafeau_fileperms(VAR_FILES) . "
"; + $out .= "- 'links' folder permissions: " . jirafeau_fileperms(VAR_LINKS) . "
"; + $out .= "- 'async' folder permissions: " . jirafeau_fileperms(VAR_ASYNC) . "
"; + $out .= "
"; + + $out .= "# Server details
"; + $out .= "- server software: " . $_SERVER["SERVER_SOFTWARE"] . "
"; + $out .= "
"; + + $out .= "# OS details
"; + $out .= "- OS: " . php_uname() . "
"; + $out .= "
"; + + $out .= "# Browser details
"; + $out .= ""; + $out .= "
"; + + $out .= "# Memory
"; + $out .= "- memory_get_peak_usage: " . jirafeau_human_size(memory_get_peak_usage()) . "
"; + + $out .= "
"; + return $out; +} + +/** + * Read async transfer information + * @return array containing information. + */ +function jirafeau_get_async_ref($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 $out; +} + +/** + * Delete async transfer information + */ +function jirafeau_async_delete($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 $filename Name of the file to send + * @param $one_time One time upload parameter + * @param $key eventual password (or blank) + * @param $time time limit + * @param $ip ip address of the client + * @return a string containing a temporary reference followed by a code or a string starting with 'Error' + */ +function jirafeau_async_init($filename, $type, $one_time, $key, $time, $ip) +{ + /* 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)) { + return 'Error: cannot create async folder.'; + } + + /* touch empty data file */ + $w_path = $p . $ref . '_data'; + touch($w_path); + + /* md5 password or empty */ + $password = ''; + if (!empty($key)) { + $password = md5($key); + } + + /* Store information. */ + $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 . + time() . 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 + * @param $max_file_size maximum allowed file size + * @return a string containing a next code to use or a string starting with 'Error' + */ +function jirafeau_async_push($ref, $data, $code, $max_file_size) +{ + /* Get async infos. */ + $a = jirafeau_get_async_ref($ref); + + /* Check some errors. */ + if (count($a) == 0) { + return "Error: cannot find transfer"; + } + if ($a['next_code'] != "$code") { + return "Error: bad transfer code"; + } + if ($data['error'] != UPLOAD_ERR_OK) { + // Check error code in https://www.php.net/manual/en/features.file-upload.errors.php + $data_details = print_r($data, true); + return "Error: upload error: {$data_details}"; + } + if (empty($data['tmp_name'])) { + return "Error: missing tmp_name"; + } + if (!is_uploaded_file($data['tmp_name'])) { + return "Error: tmp_name may not be uploaded"; + } + + $p = s2p($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: file size is above upload limit"; + } + + /* Concatenate data. */ + $r = fopen($r_path, 'r'); + $w = fopen($w_path, 'a'); + while (!feof($r)) { + if (fwrite($w, fread($r, 1024)) === false) { + fclose($r); + fclose($w); + jirafeau_async_delete($ref); + return "Error: cannot write file"; + } + } + fclose($r); + fclose($w); + unlink($r_path); + + /* 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 . + time() . NL . $code . NL + ); + fclose($handle); + return $code; +} + +/** + * Finalize an asynchronous upload. + * @param $ref asynchronous upload reference + * @param $code client code for this operation + * @param $crypt boolean asking to crypt or not + * @param $link_name_length link name length + * @return a string containing the download reference followed by a delete code or a string starting with 'Error' + */ +function jirafeau_async_end($ref, $code, $crypt, $link_name_length, $file_hash_method) +{ + /* Get async infos. */ + $a = jirafeau_get_async_ref($ref); + if (count($a) == 0 + || $a['next_code'] != "$code") { + return "Error: bad code for ending transfer"; + } + + /* Generate link infos. */ + $p = VAR_ASYNC . s2p($ref) . $ref . "_data"; + if (!file_exists($p)) { + return "Error: referenced file does not exist"; + } + + $crypted = false; + $crypt_key = ''; + if ($crypt == true && extension_loaded('sodium') == true) { + $crypt_key = jirafeau_encrypt_file($p, $p.'.crypt'); + if (strlen($crypt_key) > 0) { + if (rename($p.'.crypt', $p) === true) { + $crypted = true; + } + } + } + + $hash = jirafeau_hash_file($file_hash_method, $p); + $size = filesize($p); + $np = s2p($hash); + $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 . $hash)) { + rename($p, VAR_FILES . $np . $hash); + } + + /* Increment or create count file. */ + $counter = 0; + if (file_exists(VAR_FILES . $np . $hash . '_count')) { + $content = file(VAR_FILES . $np . $hash. '_count'); + $counter = trim($content[0]); + } + $counter++; + $handle = fopen(VAR_FILES . $np . $hash. '_count', 'w'); + fwrite($handle, $counter); + fclose($handle); + + /* Create link. */ + $link_tmp_name = VAR_LINKS . $hash . 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 . $hash . NL . $a['onetime'] . NL . + time() . NL . $a['ip'] . NL . $delete_link_code . NL . ($crypted ? 'C2' : 'O') + ); + fclose($handle); + $hash_link = substr(base_16_to_64(md5_file($link_tmp_name)), 0, $link_name_length); + $l = s2p("$hash_link"); + if (!@mkdir(VAR_LINKS . $l, 0755, true)) { + return "Error: cannot create folder in LINKS"; + } + if (!rename($link_tmp_name, VAR_LINKS . $l . $hash_link)) { + return "Error: cannot rename file in LINKS"; + } + + /* Clean async upload. */ + jirafeau_async_delete($ref); + return $hash_link . NL . $delete_link_code . NL . urlencode($crypt_key); +} + +function jirafeau_crypt_create_iv($base, $size) +{ + $iv = ''; + while (strlen($iv) < $size) { + $iv = $iv . $base; + } + $iv = substr($iv, 0, $size); + return $iv; +} + +/** + * Crypt file using Sodium and returns decrypt key. + * @param $fp_src file path to the file to crypt. + * @param $fp_dst file path to the file to write crypted file (must not be the same). + * @return key used to encrypt the file + */ +function jirafeau_encrypt_file($fp_src, $fp_dst) +{ + $fs = filesize($fp_src); + if ($fs === false || $fs == 0 || extension_loaded('sodium') == false || $fp_src == $fp_dst) { + return ''; + } + + /* Generate key. */ + $crypt_key = bin2hex(random_bytes(SODIUM_CRYPTO_STREAM_XCHACHA20_KEYBYTES / 2)); + /* Init module. */ + [$crypt_state, $crypt_header] = sodium_crypto_secretstream_xchacha20poly1305_init_push($crypt_key); + /* Crypt file. */ + $r = fopen($fp_src, 'rb'); + $w = fopen($fp_dst, 'wb'); + fwrite($w, $crypt_header); + + for ($i = 0; $i < $fs; $i += JIRAFEAU_SODIUM_CHUNKSIZE) { + $to_enc = fread($r, JIRAFEAU_SODIUM_CHUNKSIZE); + $enc = sodium_crypto_secretstream_xchacha20poly1305_push($crypt_state, $to_enc); + + if (fwrite($w, $enc) === false) { + return ''; + } + } + + fclose($r); + fclose($w); + + /* Cleanup. */ + sodium_memzero($crypt_state); + + return $crypt_key; +} + +/** + * Decrypt file using Sodium. + * @param $fp_src file path to the file to decrypt. + * @param $fp_dst file path to the file to write decrypted file (must not be the same). + * @param $k decryption key + * @return true if decryption succeeded, false otherwise + */ +function jirafeau_decrypt_file($fp_src, $fp_dst, $k) +{ + $fs = filesize($fp_src); + if ($fs === false || $fs == 0 || extension_loaded('sodium') == false || $fp_src == $fp_dst) { + return false; + } + + /* Decrypt file. */ + $r = fopen($fp_src, 'rb'); + $w = fopen($fp_dst, 'wb'); + + $crypt_header = fread($r, SODIUM_CRYPTO_SECRETSTREAM_XCHACHA20POLY1305_HEADERBYTES); + + /* Init module. */ + $crypt_state = sodium_crypto_secretstream_xchacha20poly1305_init_pull($crypt_header, $k); + + /* Decrypt file. */ + + for ($i = SODIUM_CRYPTO_SECRETSTREAM_XCHACHA20POLY1305_HEADERBYTES; $i < $fs; $i += JIRAFEAU_SODIUM_CHUNKSIZE + SODIUM_CRYPTO_SECRETSTREAM_XCHACHA20POLY1305_ABYTES) { + $to_dec = fread($r, JIRAFEAU_SODIUM_CHUNKSIZE + SODIUM_CRYPTO_SECRETSTREAM_XCHACHA20POLY1305_ABYTES); + [$dec, $crypt_tag] = sodium_crypto_secretstream_xchacha20poly1305_pull($crypt_state, $to_dec); + + if (fwrite($w, $dec) === false) { + return false; + } + } + + fclose($r); + fclose($w); + + /* Cleanup. */ + sodium_memzero($crypt_state); + + return true; +} + +/** + * Decrypt file using mcrypt. + * @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 $k string composed of the key and the iv separated by a point ('.') + * @return true if decryption succeeded, false otherwise + */ +function jirafeau_decrypt_file_legacy($fp_src, $fp_dst, $k) +{ + $fs = filesize($fp_src); + if ($fs === false || $fs == 0 || extension_loaded('mcrypt') == false) { + return false; + } + + /* Init module */ + $m = mcrypt_module_open('rijndael-256', '', 'ofb', ''); + /* Extract key and iv. */ + $crypt_key = $k; + $hash_key = md5($crypt_key); + $iv = jirafeau_crypt_create_iv($hash_key, mcrypt_enc_get_iv_size($m)); + /* Init module. */ + mcrypt_generic_init($m, $hash_key, $iv); + /* 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($m); + return true; +} + +/** + * Check if Jirafeau is password protected for visitors. + * @return true if Jirafeau is password protected, false otherwise. + */ +function jirafeau_has_upload_password($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; +} + +/** + * Test if the given IP is whitelisted by the given list. + * + * @param $allowedIpList array of allowed IPs + * @param $challengedIp IP to be challenged + * @return true if IP is authorized, false otherwise. + */ +function jirafeau_challenge_ip($allowedIpList, $challengedIp) +{ + foreach ($allowedIpList as $i) { + if ($i == $challengedIp) { + return true; + } + // CIDR test for IPv4 only. + if (strpos($i, '/') !== false) { + list($subnet, $mask) = explode('/', $i); + if ((ip2long($challengedIp) & ~((1 << (32 - $mask)) - 1)) == ip2long($subnet)) { + return true; + } + } + } + return false; +} + +/** + * Check if Jirafeau has a restriction on the IP address for uploading. + * @return true if uploading is IP restricted, false otherwise. + */ +function jirafeau_upload_has_ip_restriction($cfg) { - $c = 0; - $links_dir = scandir (VAR_LINKS); + return count($cfg['upload_ip']) > 0; +} + +/** + * Test if visitor's IP is authorized to upload at all. + * + * @param $cfg configuration + * @param $challengedIp IP to be challenged + * @return true if IP is authorized, false otherwise. + */ +function jirafeau_challenge_upload_ip($cfg, $challengedIp) +{ + // If no IP address have been listed, allow upload from any IP + if (!jirafeau_upload_has_ip_restriction($cfg)) { + return true; + } + return jirafeau_challenge_ip($cfg['upload_ip'], $challengedIp); +} + +/** + * Test if visitor's IP is authorized to upload without a password. + * + * @param $cfg configuration + * @param $challengedIp IP to be challenged + * @return true if IP is authorized, false otherwise. + */ +function jirafeau_challenge_upload_ip_without_password($cfg, $challengedIp) +{ + return jirafeau_challenge_ip($cfg['upload_ip_nopassword'], $challengedIp); +} + +/** + * Test if visitor's IP is authorized or password is supplied and authorized + * @param $ip IP to be challenged + * @param $password password to be challenged + * @return true if access is valid, false otherwise. + */ +function jirafeau_challenge_upload($cfg, $ip, $password) +{ + return jirafeau_challenge_upload_ip_without_password($cfg, $ip) || + (!jirafeau_has_upload_password($cfg) && !jirafeau_upload_has_ip_restriction($cfg)) || + (jirafeau_challenge_upload_password($cfg, $password) && jirafeau_challenge_upload_ip($cfg, $ip)); +} + +/** + * Check if Jirafeau has a restriction on the IP address for accessing the admin interface. + * @return true if admin interface is IP restricted, false otherwise. + */ +function jirafeau_admin_has_ip_restriction($cfg) +{ + return count($cfg['admin_ip']) > 0; +} + +/** + * Test if visitor's IP is authorized to access the admin interface. + * + * @param $cfg configuration + * @param $challengedIp IP to be challenged + * @return true if IP is authorized, false otherwise. + */ +function jirafeau_challenge_admin_ip($cfg, $challengedIp) +{ + // If no IP address have been listed, allow upload from any IP + if (!jirafeau_admin_has_ip_restriction($cfg)) { + return true; + } + return jirafeau_challenge_ip($cfg['admin_ip'], $challengedIp); +} - foreach ($links_dir as $link) - { - if (strcmp ($link, '.') == 0 || strcmp ($link, '..') == 0 || - preg_match ('/\.tmp/i', "$link")) +/** Tell if we have some HTTP headers generated by a proxy */ +function has_http_forwarded() +{ + return + !empty($_SERVER['HTTP_X_FORWARDED_FOR']) || + !empty($_SERVER['http_X_forwarded_for']); +} + +/** + * Generate IP list from HTTP headers generated by a proxy + * @return array of IP strings + */ +function get_ip_list_http_forwarded() +{ + $ip_list = array(); + if (!empty($_SERVER['HTTP_X_FORWARDED_FOR'])) { + $l = explode(',', $_SERVER['HTTP_X_FORWARDED_FOR']); + if ($l === false) { + return array(); + } + foreach ($l as $ip) { + array_push($ip_list, preg_replace('/\s+/', '', $ip)); + } + } + if (!empty($_SERVER['http_X_forwarded_for'])) { + $l = explode(',', $_SERVER['http_X_forwarded_for']); + foreach ($l as $ip) { + // Separate IP from port + $ipa = explode(':', $ip); + if ($ipa === false) { + continue; + } + $ip = $ipa[0]; + array_push($ip_list, preg_replace('/\s+/', '', $ip)); + } + } + return $ip_list; +} + +/** + * Get the ip address of the client from REMOTE_ADDR + * or from HTTP_X_FORWARDED_FOR if behind a proxy + * @returns the client ip address + */ +function get_ip_address($cfg) +{ + $remote = $_SERVER['REMOTE_ADDR']; + if (count($cfg['proxy_ip']) == 0 || !has_http_forwarded()) { + return $remote; + } + + $ip_list = get_ip_list_http_forwarded(); + if (count($ip_list) == 0) { + return $remote; + } + + foreach ($cfg['proxy_ip'] as $proxy_ip) { + if ($remote != $proxy_ip) { continue; - /* Read link informations. */ - $l = jirafeau_get_link ($link); - if ($l['time'] > 0 && $l['time'] < time () || // expired - !file_exists (VAR_FILES . $l['md5']) || // invalid - !file_exists (VAR_FILES . $l['md5'] . '_count')) // invalid - { - jirafeau_delete ($link); - $c++; } + // Take the last IP (the one which has been set by the defined proxy). + return end($ip_list); + } + return $remote; +} + +/** + * Convert hexadecimal string to base64 + */ +function hex_to_base64($hex) +{ + $b = ''; + foreach (str_split($hex, 2) as $pair) { + $b .= chr(hexdec($pair)); + } + return base64_encode($b); +} + +/** + * Replace markers in templates. + * + * Available markers have the scheme "###MARKERNAME###". + * + * @param $content string Template text with markers + * @param $htmllinebreaks boolean Convert linebreaks to BR-Tags + * @return Template with replaced markers + */ +function jirafeau_replace_markers($content, $htmllinebreaks = false) +{ + $patterns = array( + '/###ORGANISATION###/', + '/###CONTACTPERSON###/', + '/###WEBROOT###/' + ); + $replacements = array( + $GLOBALS['cfg']['organisation'], + $GLOBALS['cfg']['contactperson'], + $GLOBALS['cfg']['web_root'] + ); + $content = preg_replace($patterns, $replacements, $content); + + if (true === $htmllinebreaks) { + $content = nl2br($content); + } + + return $content; +} + +function jirafeau_escape($string) +{ + return htmlspecialchars($string, ENT_QUOTES); +} + +function jirafeau_admin_session_start() +{ + $_SESSION['admin_auth'] = true; + $_SESSION['admin_csrf'] = md5(uniqid(mt_rand(), true)); +} + +function jirafeau_session_end() +{ + $_SESSION = array(); + session_destroy(); +} + +function jirafeau_admin_session_logged() +{ + return isset($_SESSION['admin_auth']) && + isset($_SESSION['admin_csrf']) && + isset($_POST['admin_csrf']) && + $_SESSION['admin_auth'] === true && + $_SESSION['admin_csrf'] === $_POST['admin_csrf']; +} + +function jirafeau_admin_csrf_field() +{ + return ""; +} + +function jirafeau_user_session_start() +{ + $_SESSION['user_auth'] = true; +} + +function jirafeau_user_session_logged() +{ + return isset($_SESSION['user_auth']) && + $_SESSION['user_auth'] === true; +} + +function jirafeau_dir_size($dir) +{ + $size = 0; + foreach (glob(rtrim($dir, '/').'/*', GLOB_NOSORT) as $entry) { + $size += is_file($entry) ? filesize($entry) : jirafeau_dir_size($entry); + } + return $size; +} + +function jirafeau_export_cfg($cfg) +{ + $content = ' true, + 'why' => $mkdir_str1 . '
' . + $path . '
' . $solution_str . + '
' . $mkdir_str2); + } + + foreach (array('files', 'links', 'async') as $subdir) { + $subpath = $path.$subdir; + + if (!jirafeau_mkdir($subpath) || !jirafeau_is_writable($subpath)) { + return array('has_error' => true, + 'why' => $mkdir_str1 . '
' . + $subpath . '
' . $solution_str . + '
' . $mkdir_str2); + } + } + + return array('has_error' => false, 'why' => ''); +} + +function jirafeau_add_ending_slash($path) +{ + return $path . ((substr($path, -1) == '/') ? '' : '/'); +} + +function jirafeau_default_web_root() +{ + $url_scheme = (isset($_SERVER['HTTPS'])) ? 'https://' : 'http://'; + return $url_scheme . $_SERVER['HTTP_HOST'] . str_replace('install.php', '', $_SERVER['REQUEST_URI']); +} + +function jirafeau_get_download_stats($hash) +{ + $filename = VAR_LINKS . s2p("$hash") . $hash . '_download'; + + if (!file_exists($filename)) { + return array('count'=>0); + } + + $c = file($filename); + $data['count'] = trim($c[0]); + $data['date'] = trim($c[1]); + $data['ip'] = trim($c[2]); + + return $data; +} + +function jirafeau_write_download_stats($hash, $ip) +{ + $data = jirafeau_get_download_stats($hash); + $count = $data['count']; + $count++; + + $filename = VAR_LINKS . s2p("$hash") . $hash . '_download'; + + $handle = fopen($filename, 'w'); + fwrite($handle, $count . NL . time() . NL . $ip); + fclose($handle); +} + +function jirafeau_create_upload_finished_box($preview = true) { + ?> + +
+

+ +
+

+ + +

+ + +

+
+ + +
+

+ +

+ + +

+
+ + +
+

+ +

+ + +

+
+ +
+

+ +

+ + +

+
+ +
+

:

+

+
+
+ 'minute', + 'label' => '1_MIN' + ), + array( + 'value' => 'hour', + 'label' => '1_H' + ), + array( + 'value' => 'day', + 'label' => '1_D' + ), + array( + 'value' => 'week', + 'label' => '1_W' + ), + array( + 'value' => 'fortnight', + 'label' => '2_W' + ), + array( + 'value' => 'month', + 'label' => '1_M' + ), + array( + 'value' => 'quarter', + 'label' => '1_Q' + ), + array( + 'value' => 'year', + 'label' => '1_Y' + ), + array( + 'value' => 'none', + 'label' => 'NONE' + ) + ); +} + + + + /** + * + * creates the time selection field + * @param mixed $cfg + * @return void + */ + function jirafeau_create_selection_array($cfg) { + echo + ''; + } + + function jirafeau_datestr_to_int ($time_str) { + $time = time(); + switch ($time_str) { + case 'minute': + $time += JIRAFEAU_MINUTE; + break; + case 'hour': + $time += JIRAFEAU_HOUR; + break; + case 'day': + $time += JIRAFEAU_DAY; + break; + case 'week': + $time += JIRAFEAU_WEEK; + break; + case 'fortnight': + $time += JIRAFEAU_FORTNIGHT; + break; + case 'month': + $time += JIRAFEAU_MONTH; + break; + case 'quarter': + $time += JIRAFEAU_QUARTER; + break; + case 'year': + $time += JIRAFEAU_YEAR; + break; + default: + $time = JIRAFEAU_INFINITY; + break; } - return $c; + return $time; } -?>