X-Git-Url: https://git.p6c8.net/jirafeau_project.git/blobdiff_plain/29fffe4a12cc764c9087796ecded32a6e5814a65..d476bcd5e359b590b36e7372833e0e6ebd419587:/lib/functions.php?ds=inline diff --git a/lib/functions.php b/lib/functions.php index ae3516a..cf89593 100644 --- a/lib/functions.php +++ b/lib/functions.php @@ -20,7 +20,7 @@ */ /** - * Transform a string in a path by seperating each letters by a '/'. + * Transform a string in a path by separating each letters by a '/'. * @return path finishing with a '/' */ function s2p($s) @@ -28,7 +28,7 @@ function s2p($s) $block_size = 8; $p = ''; for ($i = 0; $i < strlen($s); $i++) { - $p .= $s{$i}; + $p .= $s[$i]; if (($i + 1) % $block_size == 0) { $p .= '/'; } @@ -68,16 +68,16 @@ function base_16_to_64($num) # Convert long hex string to bin. $size = strlen($num); for ($i = 0; $i < $size; $i++) { - $b .= $hex2bin{hexdec($num{$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; + $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; + $o = $m[bindec(substr($b, 0, $i + 6))] . $o; } return $o; } @@ -101,6 +101,19 @@ function jirafeau_gen_random($l) 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'])) { @@ -148,6 +161,9 @@ function jirafeau_clean_rm_link($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) @@ -190,16 +206,23 @@ 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': - $bytes *= 1024; + default: + return intval($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 $bytes; } @@ -210,8 +233,10 @@ function jirafeau_ini_to_bytes($value) */ 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')) + ); } /** @@ -223,6 +248,30 @@ 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; +} + /** * gets a string explaining the error * @param $code the error code @@ -231,19 +280,19 @@ function jirafeau_get_max_upload_size() function jirafeau_upload_errstr($code) { switch ($code) { - case UPLOAD_ERR_INI_SIZE: - case UPLOAD_ERR_FORM_SIZE: - return t('Your file exceeds the maximum authorized file size. '); + case UPLOAD_ERR_INI_SIZE: + case UPLOAD_ERR_FORM_SIZE: + return t('Your file exceeds the maximum authorized file size. '); - case UPLOAD_ERR_PARTIAL: - case UPLOAD_ERR_NO_FILE: - return - t('Your file was not uploaded correctly. You may succeed in retrying. '); + case UPLOAD_ERR_PARTIAL: + case UPLOAD_ERR_NO_FILE: + return + t('Your file was not uploaded correctly. You may succeed in retrying. '); - case UPLOAD_ERR_NO_TMP_DIR: - case UPLOAD_ERR_CANT_WRITE: - case UPLOAD_ERR_EXTENSION: - return t('Internal error. You may not succeed in retrying. '); + case UPLOAD_ERR_NO_TMP_DIR: + case UPLOAD_ERR_CANT_WRITE: + case UPLOAD_ERR_EXTENSION: + return t('Internal error. You may not succeed in retrying. '); } return t('Unknown error. '); } @@ -412,7 +461,7 @@ function jirafeau_upload($file, $one_time_download, $key, $time, $ip, $crypt, $l } } - /* file informations */ + /* file information */ $hash = jirafeau_hash_file($file_hash_method, $file['tmp_name']); $name = str_replace(NL, '', trim($file['name'])); $mime_type = $file['type']; @@ -459,10 +508,12 @@ function jirafeau_upload($file, $one_time_download, $key, $time, $ip, $crypt, $l /* create link file */ $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 . + 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 ? 'C' : 'O')); + NL . $ip . NL. $delete_link_code . NL . ($crypted ? 'C' : 'O') + ); fclose($handle); $hash_link = substr(base_16_to_64(md5_file($link_tmp_name)), 0, $link_name_length); $l = s2p("$hash_link"); @@ -501,10 +552,15 @@ function jirafeau_upload($file, $one_time_download, $key, $time, $ip, $crypt, $l function jirafeau_is_viewable($mime) { if (!empty($mime)) { - /* Actually, verify if mime-type is an image or a text. */ - $viewable = array('image', 'text', 'video', 'audio'); + $viewable = array('image', 'video', 'audio'); $decomposed = explode('/', $mime); - return in_array($decomposed[0], $viewable); + if (in_array($decomposed[0], $viewable) && strpos($mime, 'image/svg+xml') === false) { + return true; + } + $viewable = array('text/plain'); + if (in_array($mime, $viewable)) { + return true; + } } return false; } @@ -551,13 +607,15 @@ function show_errors() function check_errors($cfg) { - if (file_exists(JIRAFEAU_ROOT . 'install.php') - && !($cfg['installation_done'] === true)) { - header('Location: install.php'); - exit; + if (!($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')); + } } - /* Checking for errors. */ if (!is_writable(VAR_FILES)) { add_error(t('FILE_DIR_W'), VAR_FILES); } @@ -580,8 +638,8 @@ function check_errors($cfg) } /** - * Read link informations - * @return array containing informations. + * Read link information + * @return array containing information. */ function jirafeau_get_link($hash) { @@ -646,11 +704,12 @@ function jirafeau_admin_list($name, $file_hash, $link_hash) /* Push new found directory. */ $stack[] = $d . $node . '/'; } elseif (is_file($d . $node)) { - /* Read link informations. */ + /* 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($l['file_name']))) { @@ -662,7 +721,7 @@ function jirafeau_admin_list($name, $file_hash, $link_hash) if (!empty($link_hash) && $link_hash != $node) { continue; } - /* Print link informations. */ + /* Print link information. */ echo ''; echo '' . '' . '' . @@ -722,7 +788,7 @@ function jirafeau_admin_clean() /* Push new found directory. */ $stack[] = $d . $node . '/'; } elseif (is_file($d . $node)) { - /* Read link informations. */ + /* Read link information. */ $l = jirafeau_get_link(basename($node)); if (!count($l)) { continue; @@ -742,7 +808,7 @@ function jirafeau_admin_clean() /** - * Clean old async transferts. + * Clean old async transfers. * @return number of cleaned files. */ function jirafeau_admin_clean_async() @@ -763,12 +829,12 @@ function jirafeau_admin_clean_async() /* Push new found directory. */ $stack[] = $d . $node . '/'; } elseif (is_file($d . $node)) { - /* Read async informations. */ + /* Read async information. */ $a = jirafeau_get_async_ref(basename($node)); if (!count($a)) { continue; } - /* Delete transferts older than 1 hour. */ + /* Delete transfers older than 1 hour. */ if (time() - $a['last_edited'] > 3600) { jirafeau_async_delete(basename($node)); $count++; @@ -778,9 +844,108 @@ function jirafeau_admin_clean_async() } return $count; } + +/** + * Better strval function for debug purposes + */ +function jirafeau_strval($value) +{ + if (gettype($value) == "boolean") { + return $value ? 'true' : 'false'; + } + return strval($value); +} + /** - * Read async transfert informations - * @return array containing informations. + * 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 .= "- 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) { @@ -804,7 +969,7 @@ function jirafeau_get_async_ref($ref) } /** - * Delete async transfert informations + * Delete async transfer information */ function jirafeau_async_delete($ref) { @@ -828,17 +993,15 @@ function jirafeau_async_delete($ref) /** * Init a new asynchronous upload. - * @param $finename Name of the file to send + * @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 $ip ip address of the client - * @return a string containing a temporary reference followed by a code or the string 'Error' + * @return a string containing a temporary reference followed by a code or a string starting with 'Error' */ function jirafeau_async_init($filename, $type, $one_time, $key, $time, $ip) { - $res = 'Error'; - /* Create temporary folder. */ $ref; $p; @@ -849,8 +1012,7 @@ function jirafeau_async_init($filename, $type, $one_time, $key, $time, $ip) } while (file_exists($p)); @mkdir($p, 0755, true); if (!file_exists($p)) { - echo 'Error'; - return; + return 'Error: cannot create async folder.'; } /* touch empty data file */ @@ -863,14 +1025,16 @@ function jirafeau_async_init($filename, $type, $one_time, $key, $time, $ip) $password = md5($key); } - /* Store informations. */ + /* Store information. */ $p .= $ref; $handle = fopen($p, 'w'); - fwrite($handle, - str_replace(NL, '', trim($filename)) . NL . + 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); + time() . NL . $code . NL + ); fclose($handle); return $ref . NL . $code ; @@ -882,7 +1046,7 @@ function jirafeau_async_init($filename, $type, $one_time, $key, $time, $ip) * @param $file piece of data * @param $code client code for this operation * @param $max_file_size maximum allowed file size - * @return a string containing a next code to use or the string "Error" + * @return a string containing a next code to use or a string starting with 'Error' */ function jirafeau_async_push($ref, $data, $code, $max_file_size) { @@ -890,11 +1054,22 @@ function jirafeau_async_push($ref, $data, $code, $max_file_size) $a = jirafeau_get_async_ref($ref); /* Check some errors. */ - if (count($a) == 0 - || $a['next_code'] != "$code" - || empty($data['tmp_name']) - || !is_uploaded_file($data['tmp_name'])) { - return 'Error'; + 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); @@ -907,7 +1082,7 @@ function jirafeau_async_push($ref, $data, $code, $max_file_size) if ($max_file_size > 0 && filesize($r_path) + filesize($w_path) > $max_file_size * 1024 * 1024) { jirafeau_async_delete($ref); - return 'Error'; + return "Error: file size is above upload limit"; } /* Concatenate data. */ @@ -918,7 +1093,7 @@ function jirafeau_async_push($ref, $data, $code, $max_file_size) fclose($r); fclose($w); jirafeau_async_delete($ref); - return 'Error'; + return "Error: cannot write file"; } } fclose($r); @@ -928,21 +1103,23 @@ function jirafeau_async_push($ref, $data, $code, $max_file_size) /* 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 . + 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); + time() . NL . $code . NL + ); fclose($handle); return $code; } /** - * Finalyze an asynchronous upload. + * 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 $link_name_length link name length - * @return a string containing the download reference followed by a delete code or the string 'Error' + * @return a string containing the download reference followed by a delete code or a string starting with 'Error' */ function jirafeau_async_end($ref, $code, $crypt, $link_name_length, $file_hash_method) { @@ -950,13 +1127,13 @@ function jirafeau_async_end($ref, $code, $crypt, $link_name_length, $file_hash_m $a = jirafeau_get_async_ref($ref); if (count($a) == 0 || $a['next_code'] != "$code") { - return "Error"; + return "Error: bad code for ending transfer"; } /* Generate link infos. */ $p = VAR_ASYNC . s2p($ref) . $ref . "_data"; if (!file_exists($p)) { - return 'Error'; + return "Error: referenced file does not exist"; } $crypted = false; @@ -995,16 +1172,20 @@ function jirafeau_async_end($ref, $code, $crypt, $link_name_length, $file_hash_m /* 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 . + 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 ? 'C' : 'O')); + time() . NL . $a['ip'] . NL . $delete_link_code . NL . ($crypted ? 'C' : '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)) { - return 'Error'; + if (!@mkdir(VAR_LINKS . $l, 0755, true)) { + return "Error: cannot create folder in LINKS"; + } + if (!rename($link_tmp_name, VAR_LINKS . $l . $hash_link)) { + return "Error: cannot rename file in LINKS"; } /* Clean async upload. */ @@ -1046,10 +1227,13 @@ function jirafeau_encrypt_file($fp_src, $fp_dst) /* 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, $enc) === false) { - return ''; + while (!feof($r)) { + $to_enc = fread($r, 1024); + if (strlen($to_enc) > 0) { + $enc = mcrypt_generic($m, $to_enc); + if (fwrite($w, $enc) === false) { + return ''; + } } } fclose($r); @@ -1152,7 +1336,8 @@ function jirafeau_challenge_ip($allowedIpList, $challengedIp) * Check if Jirafeau has a restriction on the IP address for uploading. * @return true if uploading is IP restricted, false otherwise. */ -function jirafeau_upload_has_ip_restriction($cfg) { +function jirafeau_upload_has_ip_restriction($cfg) +{ return count($cfg['upload_ip']) > 0; } @@ -1190,7 +1375,7 @@ function jirafeau_challenge_upload_ip_without_password($cfg, $challengedIp) * @param $password password to be challenged * @return true if access is valid, false otherwise. */ -function jirafeau_challenge_upload ($cfg, $ip, $password) +function jirafeau_challenge_upload($cfg, $ip, $password) { return jirafeau_challenge_upload_ip_without_password($cfg, $ip) || (!jirafeau_has_upload_password($cfg) && !jirafeau_upload_has_ip_restriction($cfg)) || @@ -1316,7 +1501,7 @@ function jirafeau_admin_session_start() $_SESSION['admin_csrf'] = md5(uniqid(mt_rand(), true)); } -function jirafeau_admin_session_end() +function jirafeau_session_end() { $_SESSION = array(); session_destroy(); @@ -1336,6 +1521,17 @@ 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) { $size = 0; @@ -1344,3 +1540,104 @@ function jirafeau_dir_size($dir) } 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() +{ + return $_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); +}