151 lines
5.0 KiB
PHP
Executable File
151 lines
5.0 KiB
PHP
Executable File
<?php
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class HttpHeader{
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public static $_headers = array(
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'Host' => 'HTTP_HOST',
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'User-Agent' => 'HTTP_USER_AGENT',
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'Content-Type' => 'HTTP_CONTENT_TYPE',
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'Content-Length' => 'HTTP_CONTENT_LENGTH',
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'Depth' => 'HTTP_DEPTH',
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'Expect' => 'HTTP_EXPECT',
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'If-None-Match' => 'HTTP_IF_NONE_MATCH',
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'If-Match' => 'HTTP_IF_MATCH',
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'If-Range' => 'HTTP_IF_RANGE',
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'Last-Modified' => 'HTTP_LAST_MODIFIED',
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'If-Modified-Since' => 'HTTP_IF_MODIFIED_SINCE',
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'If-Unmodified-Since' => 'HTTP_IF_UNMODIFIED_SINCE',
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'Range' => 'HTTP_RANGE',
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'Timeout' => 'HTTP_TIMEOUT',
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'If' => 'HTTP_IF',
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'Lock-Token' => 'HTTP_LOCK_TOKEN',
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'Overwrite' => 'HTTP_OVERWRITE',
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'Destination' => 'HTTP_DESTINATION',
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'Request-Id' => 'REQUEST_ID',
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'Request-Body-File' => 'REQUEST_BODY_FILE',
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'Redirect-Status' => 'REDIRECT_STATUS',
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);
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public static function init(){
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static $init = false;
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if($init) return;
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foreach ($_SERVER as $key=>$val){
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$key = strtoupper($key);
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if(!array_key_exists($key,$_SERVER)) continue;
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$_SERVER[$key]= $val;
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}
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foreach (self::$_headers as $key=>$keyRequest){
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if(!array_key_exists($key,$_SERVER)) continue;
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$_SERVER[$key]= $_SERVER[$keyRequest];
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$_SERVER[strtoupper($key)]= $_SERVER[$keyRequest];
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}
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}
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public static function get($key){
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self::init();
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return $_SERVER[$key] ? $_SERVER[$key] : $_SERVER['HTTP_'.strtoupper($key)];
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}
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public static function method(){
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return strtoupper(self::get('REQUEST_METHOD'));
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}
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public static function length(){
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$result = self::get('X-Expected-Entity-Length');
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if (!$result) {
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$result = self::get('Content-Length');
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}
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return $result;
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}
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public static function range(){
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$range = self::get('Range');
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if (!$range) return false;
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if (!preg_match('/^bytes=([0-9]*)-([0-9]*)$/i', $range, $matches)) return false;
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if ($matches[1] === '' && $matches[2] === '') return false;
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return array(
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$matches[1] !== '' ? $matches[1] : null,
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$matches[2] !== '' ? $matches[2] : null,
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);
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}
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public static $statusCode = array(
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/**
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https://www.cnblogs.com/chengkanghua/p/11314230.html
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1xx 临时响应;用于指定客户端应相应的某些动作
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2xx 成功;用于表示请求成功
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3xx 重定向;表示要完成请求，需要进一步操作
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4xx 请求错误; 表示请求可能出错，妨碍了服务器的处理
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5xx 服务器错误;服务器处理请求时内部错误
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*/
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'100' => 'Continue',
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'101' => 'Switching Protocol',
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'102' => 'Processing',
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'103' => 'Early Hints',
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'200' => 'OK',
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'201' => 'Created',
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'202' => 'Accepted',
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'203' => 'Non-Authoritative Information',
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'204' => 'No Content',
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'205' => 'Reset Content',
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'206' => 'Partial Content',
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'207' => 'Multi-Status',
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'300' => 'Multiple Choices',
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'301' => 'Moved Permanently',
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'302' => 'Found',
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'303' => 'See Other',
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'304' => 'Not Modified',
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'305' => 'Use Proxy',
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'307' => 'Temporary Redirect',
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'308' => 'Permanent Redirect',
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'400' => 'Bad Request',
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'401' => 'Unauthorized',
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'402' => 'Payment Required',
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'403' => 'Forbidden',
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'404' => 'Not Found',
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'405' => 'Method Not Allowed',
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'406' => 'Not Acceptable',
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'407' => 'Proxy Authentication Required',
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'408' => 'Request Timeout',
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'409' => 'Conflict',
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'410' => 'Gone',
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'411' => 'Length Required',
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'412' => 'Precondition Failed',
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'413' => 'Request Entity Too Large',
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'414' => 'Request URI Too Large',
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'415' => 'Unsupported Media Type',
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'416' => 'Requested Range Not Satisfiable',
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'417' => 'Expectation Failed',
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'422' => 'Unprocessable Entity',
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'423' => 'Locked',
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'424' => 'Failed Dependency',
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'425' => 'Unordered Collection',
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'426' => 'Upgrade Required',
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'428' => 'Precondition Required',
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'429' => 'Too Many Requests',
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'431' => 'Request Header Fields Too Large',
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'444' => 'No Response',
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'450' => 'Blocked by Windows Parental Controls',
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'451' => 'Unavailable For Legal Reasons',
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'494' => 'Request Header Too Large',
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'500' => 'Internal Server Error',
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'501' => 'Not Implemented',
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'502' => 'Bad Gateway',
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'503' => 'Service Unavailable',
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'504' => 'Gateway Timeout',
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'505' => 'HTTP Version not supported',
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'507' => 'Insufficient Storage',
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);
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public static function code($code){
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$code = $code.'';
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$result = self::$statusCode[$code];
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$result = $result ? "HTTP/1.1 $code ".$result : '';
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return $result;
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}
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} |