Knowledge base func

 
define('METHOD_POST','POST');	// こういうのってdefaultでコンストってなかったっけ？
define('METHOD_GET','GET');
 
// echo Nets::sendGET('http://weble.org/', Array('s' => 'PHP')); 
// echo Nets::sendPOST('http://caloreen.com/search/', Array('keyword' => 'パン')); 
// このままだとfalseが帰ってくることもあるので注意！
 
// extends Exception ほんとはえらーとらっぷとかの上にのっけたほうがいい
class Nets {
	public static function sendPost($url, $params)
	{
		return self::sendRequest(METHOD_POST, $url, $params);
	}
 
	public static function sendGET($url, $params)
	{
		//こんなんでもいいかもめ
		//$url .= '?'. http_build_query($params);
		//$handle = fopen($url, "r");
		//$url = fgets( $handle );
		return self::sendRequest(METHOD_GET, $url, $params);
	}
 
	private static function sendRequest($method, $url, $params)
	{
		$data = http_build_query($params);
		$header = Array("Content-Type: application/x-www-form-urlencoded");
		$options = array('http' => Array(
			'method' => $method,
			'header'  => implode("\r\n", $header), 
		));
		if($method == METHOD_GET) {
			$content = file_get_contents($url . '?' . $data, false, stream_context_create($options));
		} else if($method == METHOD_POST) {
			$options['http']['content'] = $data;
			$content = file_get_contents($url, false, stream_context_create($options));
		}
		return $content;
	} 
}

define('METHOD_POST','POST');	// こういうのってdefaultでコンストってなかったっけ？
define('METHOD_GET','GET');
define('NETBUF_SIZE',4096);
define('NETS_PORT',80);
define('NETS_TIMEOUT',6);
 
// echo Nets::sendGET('http://localhost/', Array('s' => 'PHP')); 
// echo Nets::sendPOST('http://localhost/', Array('keyword' => 'パン')); 
 
// extends Exception ほんとはえらーとらっぷとかの上にのっけたほうがいい
class Nets {
 
	public static function sendPost($url, $params)
	{
		return self::sendRequest(METHOD_POST, $url, $params);
	}
 
	public static function sendGET($url, $params, $getsline = 0, $bufsize = NETBUF_SIZE)
	{
//		return self::sendRequest(METHOD_GET, $url, $params);
		return self::sendGETReq($url, $params, $getsline, $bufsize);
	}
 
	private static function sendRequest($method, $url, $params)
	{
		$data = http_build_query($params);
		$header = Array("Content-Type: application/x-www-form-urlencoded");
		$options = Array('http' => Array(
			'method' => $method
			,'header'  => implode("\r\n", $header)
		));
		if($method == METHOD_GET) {
			$content = file_get_contents($url . '?' . $data, false, stream_context_create($options));
		} else if($method == METHOD_POST) {
			$options['http']['content'] = $data;
			$content = file_get_contents($url, false, stream_context_create($options));
		}
		if ($content===false) {
			$content = ""; // 本当はエラートラップを書いておくべき
		}
		return $content;
	}
 
	// GET指示のAPIの場合最初の一行だけで済んだりするのでそれ用
	private static function sendGETReq($url, $params ,$getsline = 0, $bufsize = NETBUF_SIZE)
	{
		$buf = "";
		$url .= '?'. http_build_query($params);
		$handle = @fopen($url, "r");
		$i = 0;
		while (!feof($handle)){
			$buf .= fgets($handle, $bufsize);
			if ($getsline > 1 && $i==$getsline) {
				break;
			}
			$i++;
		}
		fclose($handle);
		return $buf;
	}
 
	// ヘッダーに細かい細工をしなきゃいけない用(参考)
	private static function sendGETReqPattern2($url, $path, $host, $params ,$getsline = 0, $setport = NETS_PORT)
	{
		$ret = ""; 
		$fp = fsockopen($url, $setport, $errno, $errstr, NETS_TIMEOUT);
		if (!$fp) {
			$ret = "$errstr ($errno)\n";
		} else {
			$request = getPOSTReqparam($path, $host, $params);
			fwrite($fp, $request);
			while (!feof($fp)) {
				$ret .= fgets($fp, NETBUF_SIZE);
			}
			fclose($fp);
		}
		return $ret;
	}
 
	private static function getPOSTReqparam($path, $host, $params)
	{
		foreach ($params as $key => $val) {
			$param[]  = $key .'='.urlencode($val);
		}
		// 例えばユーザーエージェントを足すとか そういう処理を書く
		$param[]  = 'useragent='.urlencode($_SERVER['HTTP_USER_AGENT']); 
		$options = join($param,"\r\n");
 
		$request = "POST $path HTTP/1.1\r\n";
		$request .= "Content-Type: application/x-www-form-urlencoded\r\n"
		$request .= "Content-Length: " . strlen($param) . "\r\n"
		$request .= "Host: $host \r\n";
		$request .= "Connection: Close\r\n";
		$request .= "\r\n";
		$request .= $options."\r\n";
 
 
		return $request;
	}
 
	private static function getGETReqparam($path, $host, $params)
	{
		foreach ($params as $key => $val) {
			$param[]  = $key .'='.urlencode($val);
		}
		// 例えばユーザーエージェントを足すとか そういう処理を書く
		$param[]  = 'useragent='.urlencode($_SERVER['HTTP_USER_AGENT']); 
		$options = join($param,"&");
 
		$request = "GET $path?$options HTTP/1.1\r\n";
		$request .= "Content-Type: application/x-www-form-urlencoded\r\n"
		$request .= "Host: $host \r\n";
		$request .= "Connection: Close\r\n";
		$request .= "\r\n";
 
		return $request;
	}
 
	// APIのためにリクエストを送る目的というよりはクローラー用
	public static function getPage($url) {
		ob_start();	// 出力制御
		$ch = curl_init();
		curl_setopt ($ch, CURLOPT_URL, $url);
		curl_setopt ($ch, CURLOPT_HEADER, 0);
		curl_setopt ($ch, CURLOPT_TIMEOUT, NETS_TIMEOUT);
		curl_exec ($ch);
//		$ht_hd = curl_getinfo($ch, CURLINFO_HTTP_CODE);
//	    if(preg_match("/^(200)$/",$ht_hd)){
		$strbuf = ob_get_contents();	// 出力結果を変数に格納
//		} else {
//			$strbuf = "";// 404|403|500
//		}
		curl_close ($ch);
		ob_end_clean();
		ob_end_flush();
		return $strbuf;
	}
 
	// あとはHttpRequestを使うパターンとかいろいろある。まあよしなに。
 
}