cookie_parser.php

SimpleClient.php

<?php
	class SimpleClient {
		private $cookies = [];
		
		public function get($url){
			return $this->request("GET", $url, null);
		}
		public function post($url, $param){
			return $this->request("POST", $url, $param);
		}
		private function request($method, $url, $param){
			$response = file_get_contents($url, false, $this->buildContext($method, $url, $param));
			
			$this->parseCookie($http_response_header);
			foreach($http_response_header as $item){
				if(preg_match("/^Location:(.+)/si", $item, $m)){
					return $this->get(trim($m[1]));	
				}
			}
			return $response;
		}
		
		private function buildContext($method, $url, $param){
			$http = [
				"method" => $method,
				"follow_location" => 0
			];
			$headers = [
				"Cookie: " . $this->buildCookieHeader($url)
			];
			
			if($param){
				$http["content"] = http_build_query($param);
				$headers[] = "Content-Type: application/x-www-form-urlencoded";
				$headers[] = "Content-Length: " . strlen($http["content"]);
			}
			
			$http["header"] = implode("\r\n", $headers);
			return stream_context_create(compact("http"));
		}
		
		private function buildCookieHeader($url){
			$url = parse_url($url);
			if(!isset($url["path"])){
				$url["path"] = "/";
			}
			
			$cookieHeader = [];
			foreach($this->cookies as $item){
				if(strpos($item["domain"], ".") === 0){
					$item["domain"] = substr($item["domain"], 1);
				}
				if(!empty($item["domain"]) && substr($url["host"], -strlen($item["domain"])) !== $item["domain"]){
					continue;
				}
				if(!empty($item["path"]) && strpos($url["path"], $item["path"]) !== 0){
					continue;
				}
				$cookieHeader[] = $item["name"] . "=" . $item["value"];
			}
			
			return implode("; ", $cookieHeader);
		}
		private function parseCookie($http_response_header){
			$setCookie = "";
			foreach($http_response_header as $item){
				if(preg_match("/^Set-Cookie:(.+)/si", $item, $m)){
					$setCookie .= $m[1] . ";";
				}
			}
			
			$now = null;
			$cookies = [];
			foreach(explode(";", $setCookie) as $item){
				$item = array_map("trim", explode("=", $item));
				$key = strtolower($item[0]);
				if($key == "expires"){
					$now["expiry"] = strtotime($item[1]);
				}else if($key == "max-age"){
					$now["expiry"] = time() + $item[1];
				}else if($key == "path"){
					$now["path"] = $item[1];
				}else if($key == "domain"){
					$now["domain"] = $item[1];
				}else if($key == "secure"){
					$now["secure"] = true;
				}else if($key == "httponly"){
					$now["httponly"] = true;
				}else if(!empty($key)){
					if($now != null){
						$cookies[] = $now;
					}
					$now = [
						"name" => $item[0],
						"value" => $item[1],
						"expiry" => 0,
						"path" => "",
						"domain" => "",
						"secure" => false,
						"httponly" => false
					];
				}
			}
			if($now != null){
				$cookies[] = $now;
			}
			
			$cookieMap = [];
			foreach($this->cookies as $item){
				$cookieMap[$item["name"]] = $item;
			}
			foreach($cookies as $item){
				$cookieMap[$item["name"]] = $item;
			}
			$this->cookies = array_values($cookieMap);
		}
		
		public function exportCookie(){
			$cookies = [];
			foreach($this->cookies as $item){
				if($item["expiry"] > time()){
					$cookies[] = $item;
				}
			}
			return $cookies;
		}
		public function importCookie($cookies){
			$this->cookies = $cookies;
		}
	}
?>