228 lines
7.1 KiB
PHP
228 lines
7.1 KiB
PHP
<?php
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/* μlogger
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*
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* Copyright(C) 2017 Bartek Fabiszewski (www.fabiszewski.net)
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*
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* This is free software; you can redistribute it and/or modify it under
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* the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* Various util functions
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*/
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class uUtils {
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/**
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* Calculate maximum allowed size of uploaded file
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* for current PHP settings
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*
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* @return int Number of bytes
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*/
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public static function getSystemUploadLimit() {
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$upload_max_filesize = self::iniGetBytes('upload_max_filesize');
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$post_max_size = self::iniGetBytes('post_max_size');
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// post_max_size = 0 means unlimited size
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if ($post_max_size === 0) { $post_max_size = $upload_max_filesize; }
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$memory_limit = self::iniGetBytes('memory_limit');
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// memory_limit = -1 means no limit
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if ($memory_limit < 0) { $memory_limit = $post_max_size; }
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return min($upload_max_filesize, $post_max_size, $memory_limit);
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}
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/**
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* @param $path string Path
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* @return bool True if is absolute
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*/
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public static function isAbsolutePath($path) {
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return $path[0] === '/' || $path[0] === '\\' || preg_match('/^[a-zA-Z]:\\\\/', $path);
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}
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/**
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* Get number of bytes from ini parameter.
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* Optionally parses shorthand byte values (G, M, B)
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*
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* @param string $iniParam Ini parameter name
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* @return int Bytes
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* @noinspection PhpMissingBreakStatementInspection
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*/
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private static function iniGetBytes($iniParam) {
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$iniStr = ini_get($iniParam);
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$val = (float) $iniStr;
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$suffix = substr(trim($iniStr), -1);
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if (ctype_alpha($suffix)) {
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switch (strtolower($suffix)) {
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case 'g':
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$val *= 1024;
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case 'm':
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$val *= 1024;
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case 'k':
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$val *= 1024;
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}
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}
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return (int) $val;
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}
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/**
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* Exit with error message
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*
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* @param string $errorMessage Message
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* @param array|null $extra Optional array of extra parameters
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*/
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public static function exitWithError($errorMessage, $extra = null) {
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$extra['message'] = $errorMessage;
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self::exitWithStatus(true, $extra);
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}
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/**
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* Exit with successful status code
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*
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* @param array|null $extra Optional array of extra parameters
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*/
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public static function exitWithSuccess($extra = null) {
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self::exitWithStatus(false, $extra);
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}
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/**
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* Exit with xml response
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* @param boolean $isError Error if true
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* @param array|null $extra Optional array of extra parameters
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*/
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private static function exitWithStatus($isError, $extra = null) {
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$output = [];
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if ($isError) {
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$output["error"] = true;
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}
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if (!empty($extra)) {
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foreach ($extra as $key => $value) {
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$output[$key] = $value;
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}
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}
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header("Content-type: application/json");
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echo json_encode($output);
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exit;
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}
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/**
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* Calculate app base URL
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* Returned URL has trailing slash.
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*
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* @return string URL
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*/
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public static function getBaseUrl() {
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$proto = (!isset($_SERVER["HTTPS"]) || $_SERVER["HTTPS"] === "" || $_SERVER["HTTPS"] === "off") ? "http://" : "https://";
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// Check if we are behind an https proxy
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if (isset($_SERVER["HTTP_X_FORWARDED_PROTO"]) && $_SERVER["HTTP_X_FORWARDED_PROTO"] === "https") {
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$proto = "https://";
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}
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$host = isset($_SERVER["HTTP_HOST"]) ? $_SERVER["HTTP_HOST"] : "";
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if (realpath($_SERVER["SCRIPT_FILENAME"])) {
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$scriptPath = substr(dirname(realpath($_SERVER["SCRIPT_FILENAME"])), strlen(ROOT_DIR));
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} else {
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// for phpunit
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$scriptPath = substr(dirname($_SERVER["SCRIPT_FILENAME"]), strlen(ROOT_DIR));
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}
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$self = dirname($_SERVER["PHP_SELF"]);
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$path = str_replace("\\", "/", substr($self, 0, strlen($self) - strlen($scriptPath)));
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return $proto . str_replace("//", "/", $host . $path . "/");
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}
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public static function postFloat($name, $default = null) {
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return self::requestValue($name, $default, INPUT_POST, FILTER_VALIDATE_FLOAT);
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}
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public static function getFloat($name, $default = null) {
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return self::requestValue($name, $default, INPUT_GET, FILTER_VALIDATE_FLOAT);
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}
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public static function postPass($name, $default = null) {
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return self::requestValue($name, $default, INPUT_POST);
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}
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public static function postString($name, $default = null) {
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return self::requestString($name, $default, INPUT_POST);
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}
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public static function getString($name, $default = null) {
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return self::requestString($name, $default, INPUT_GET);
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}
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public static function postBool($name, $default = null) {
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$input = filter_input(INPUT_POST, $name, FILTER_VALIDATE_BOOLEAN, FILTER_NULL_ON_FAILURE);
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return $input !== null ? (bool) $input : $default;
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}
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public static function getBool($name, $default = null) {
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$input = filter_input(INPUT_GET, $name, FILTER_VALIDATE_BOOLEAN, FILTER_NULL_ON_FAILURE);
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return $input !== null ? (bool) $input : $default;
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}
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public static function postInt($name, $default = null) {
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return self::requestInt($name, $default, INPUT_POST);
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}
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public static function getInt($name, $default = null) {
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return self::requestInt($name, $default, INPUT_GET);
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}
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public static function requestFile($name, $default = null) {
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if (isset($_FILES[$name])) {
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$files = $_FILES[$name];
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if (isset($files["name"], $files["type"], $files["size"], $files["tmp_name"])) {
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return $_FILES[$name];
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}
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}
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return $default;
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}
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public static function postArray($name, $default = null) {
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return ((isset($_POST[$name]) && is_array($_POST[$name])) ? $_POST[$name] : $default);
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}
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/**
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* @param string $name Input name
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* @param boolean $checkMime Optionally check mime with known types
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* @return array File metadata array
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* @throws Exception Upload exception
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* @throws ErrorException Internal server exception
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*/
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public static function requireFile($name, $checkMime = false) {
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return uUpload::sanitizeUpload($_FILES[$name], $checkMime);
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}
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private static function requestString($name, $default, $type) {
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if (is_string(($val = self::requestValue($name, $default, $type)))) {
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return trim($val);
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}
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return $val;
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}
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private static function requestInt($name, $default, $type) {
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if (is_float(($val = self::requestValue($name, $default, $type, FILTER_VALIDATE_FLOAT)))) {
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return (int) round($val);
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}
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return self::requestValue($name, $default, $type, FILTER_VALIDATE_INT);
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}
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private static function requestValue($name, $default, $type, $filters = FILTER_DEFAULT, $flags = []) {
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$input = filter_input($type, $name, $filters, $flags);
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if ($input !== false && $input !== null) {
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return $input;
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}
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return $default;
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}
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}
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?>
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