snoopy.class.inc

一个免费的php的blog程序,很好用

				$this->status=-100;
				return false;
			}
				
			if($currentHeader == "\r\n")
				break;
						
			// if a header begins with Location: or URI:, set the redirect
			if(preg_match("/^(Location:|URI:)/i",$currentHeader))
			{
				// get URL portion of the redirect
				preg_match("/^(Location:|URI:)\s+(.*)/",chop($currentHeader),$matches);
				// look for :// in the Location header to see if hostname is included
				if(!preg_match("|\:\/\/|",$matches[2]))
				{
					// no host in the path, so prepend
					$this->_redirectaddr = $URI_PARTS["scheme"]."://".$this->host.":".$this->port;
					// eliminate double slash
					if(!preg_match("|^/|",$matches[2]))
							$this->_redirectaddr .= "/".$matches[2];
					else
							$this->_redirectaddr .= $matches[2];
				}
				else
					$this->_redirectaddr = $matches[2];
			}
		
			if(preg_match("|^HTTP/|",$currentHeader))
			{
                if(preg_match("|^HTTP/[^\s]*\s(.*?)\s|",$currentHeader, $status))
				{
					$this->status= $status[1];
                }				
				$this->response_code = $currentHeader;
			}
			
			if (preg_match("/Content-Encoding: gzip/", $currentHeader) ) {
				$is_gzipped = true;
			}
			
			$this->headers[] = $currentHeader;
		}

		# $results = fread($fp, $this->maxlength);
		$results = "";
		while ( $data = fread($fp, $this->maxlength) ) {
		    $results .= $data;
		    if (
		        strlen($results) > $this->maxlength ) {
		        break;
		    }
		}
		
		// gunzip
		if ( $is_gzipped ) {
			// per http://www.php.net/manual/en/function.gzencode.php
			$results = substr($results, 10);
			$results = gzinflate($results);
		}
		
		if ($this->read_timeout > 0 && $this->_check_timeout($fp))
		{
			$this->status=-100;
			return false;
		}
		
		// check if there is a a redirect meta tag
		
		if(preg_match("'<meta[\s]*http-equiv[^>]*?content[\s]*=[\s]*[\"\']?\d+;[\s]+URL[\s]*=[\s]*([^\"\']*?)[\"\']?>'i",$results,$match))
		{
			$this->_redirectaddr = $this->_expandlinks($match[1],$URI);	
		}

		// have we hit our frame depth and is there frame src to fetch?
		if(($this->_framedepth < $this->maxframes) && preg_match_all("'<frame\s+.*src[\s]*=[\'\"]?([^\'\"\>]+)'i",$results,$match))
		{
			$this->results[] = $results;
			for($x=0; $x<count($match[1]); $x++)
				$this->_frameurls[] = $this->_expandlinks($match[1][$x],$URI_PARTS["scheme"]."://".$this->host);
		}
		// have we already fetched framed content?
		elseif(is_array($this->results))
			$this->results[] = $results;
		// no framed content
		else
			$this->results = $results;
		
		return true;
	}

/*======================================================================*\
	Function:	_httpsrequest
	Purpose:	go get the https data from the server using curl
	Input:		$url		the url to fetch
				$URI		the full URI
				$body		body contents to send if any (POST)
	Output:		
\*======================================================================*/
	
	function _httpsrequest($url,$URI,$http_method,$content_type="",$body="")
	{
		if($this->passcookies && $this->_redirectaddr)
			$this->setcookies();

		$headers = array();		
					
		$URI_PARTS = parse_url($URI);
		if(empty($url))
			$url = "/";
		// GET ... header not needed for curl
		//$headers[] = $http_method." ".$url." ".$this->_httpversion;		
		if(!empty($this->agent))
			$headers[] = "User-Agent: ".$this->agent;
		if(!empty($this->host))
			$headers[] = "Host: ".$this->host;
		if(!empty($this->accept))
			$headers[] = "Accept: ".$this->accept;
		if(!empty($this->referer))
			$headers[] = "Referer: ".$this->referer;
		if(!empty($this->cookies))
		{			
			if(!is_array($this->cookies))
				$this->cookies = (array)$this->cookies;
	
			reset($this->cookies);
			if ( count($this->cookies) > 0 ) {
				$cookie_str = 'Cookie: ';
				foreach ( $this->cookies as $cookieKey => $cookieVal ) {
				$cookie_str .= $cookieKey."=".urlencode($cookieVal)."; ";
				}
				$headers[] = substr($cookie_str,0,-2);
			}
		}
		if(!empty($this->rawheaders))
		{
			if(!is_array($this->rawheaders))
				$this->rawheaders = (array)$this->rawheaders;
			while(list($headerKey,$headerVal) = each($this->rawheaders))
				$headers[] = $headerKey.": ".$headerVal;
		}
		if(!empty($content_type)) {
			if ($content_type == "multipart/form-data")
				$headers[] = "Content-type: $content_type; boundary=".$this->_mime_boundary;
			else
				$headers[] = "Content-type: $content_type";
		}
		if(!empty($body))	
			$headers[] = "Content-length: ".strlen($body);
		if(!empty($this->user) || !empty($this->pass))	
			$headers[] = "Authorization: BASIC ".base64_encode($this->user.":".$this->pass);
			
		for($curr_header = 0; $curr_header < count($headers); $curr_header++)
			$cmdline_params .= " -H \"".$headers[$curr_header]."\"";
		
		if(!empty($body))
			$cmdline_params .= " -d \"$body\"";
		
		if($this->read_timeout > 0)
			$cmdline_params .= " -m ".$this->read_timeout;
		
		$headerfile = uniqid(time());

		exec($this->curl_path." -D \"/tmp/$headerfile\"".$cmdline_params." ".$URI,$results,$return);
		
		if($return)
		{
			$this->error = "Error: cURL could not retrieve the document, error $return.";
			return false;
		}
			
			
		$results = implode("\r\n",$results);
		
		$result_headers = file("/tmp/$headerfile");
						
		$this->_redirectaddr = false;
		unset($this->headers);
						
		for($currentHeader = 0; $currentHeader < count($result_headers); $currentHeader++)
		{
			
			// if a header begins with Location: or URI:, set the redirect
			if(preg_match("/^(Location: |URI: )/i",$result_headers[$currentHeader]))
			{
				// get URL portion of the redirect
				preg_match("/^(Location: |URI:)(.*)/",chop($result_headers[$currentHeader]),$matches);
				// look for :// in the Location header to see if hostname is included
				if(!preg_match("|\:\/\/|",$matches[2]))
				{
					// no host in the path, so prepend
					$this->_redirectaddr = $URI_PARTS["scheme"]."://".$this->host.":".$this->port;
					// eliminate double slash
					if(!preg_match("|^/|",$matches[2]))
							$this->_redirectaddr .= "/".$matches[2];
					else
							$this->_redirectaddr .= $matches[2];
				}
				else
					$this->_redirectaddr = $matches[2];
			}
		
			if(preg_match("|^HTTP/|",$result_headers[$currentHeader]))
				$this->response_code = $result_headers[$currentHeader];

			$this->headers[] = $result_headers[$currentHeader];
		}

		// check if there is a a redirect meta tag
		
		if(preg_match("'<meta[\s]*http-equiv[^>]*?content[\s]*=[\s]*[\"\']?\d+;[\s]+URL[\s]*=[\s]*([^\"\']*?)[\"\']?>'i",$results,$match))
		{
			$this->_redirectaddr = $this->_expandlinks($match[1],$URI);	
		}

		// have we hit our frame depth and is there frame src to fetch?
		if(($this->_framedepth < $this->maxframes) && preg_match_all("'<frame\s+.*src[\s]*=[\'\"]?([^\'\"\>]+)'i",$results,$match))
		{
			$this->results[] = $results;
			for($x=0; $x<count($match[1]); $x++)
				$this->_frameurls[] = $this->_expandlinks($match[1][$x],$URI_PARTS["scheme"]."://".$this->host);
		}
		// have we already fetched framed content?
		elseif(is_array($this->results))
			$this->results[] = $results;
		// no framed content
		else
			$this->results = $results;

		unlink("/tmp/$headerfile");
		
		return true;
	}

/*======================================================================*\
	Function:	setcookies()
	Purpose:	set cookies for a redirection
\*======================================================================*/
	
	function setcookies()
	{
		for($x=0; $x<count($this->headers); $x++)
		{
		if(preg_match("/^set-cookie:[\s]+([^=]+)=([^;]+)/i", $this->headers[$x],$match))
			$this->cookies[$match[1]] = $match[2];
		}
	}

	
/*======================================================================*\
	Function:	_check_timeout
	Purpose:	checks whether timeout has occurred
	Input:		$fp	file pointer
\*======================================================================*/

	function _check_timeout($fp)
	{
		if ($this->read_timeout > 0) {
			$fp_status = socket_get_status($fp);
			if ($fp_status["timed_out"]) {
				$this->timed_out = true;
				return true;
			}
		}
		return false;
	}

/*======================================================================*\
	Function:	_connect
	Purpose:	make a socket connection
	Input:		$fp	file pointer
\*======================================================================*/
	
	function _connect(&$fp)
	{
		if(!empty($this->proxy_host) && !empty($this->proxy_port))
			{
				$this->_isproxy = true;
				$host = $this->proxy_host;
				$port = $this->proxy_port;
			}
		else
		{
			$host = $this->host;
			$port = $this->port;
		}
	
		$this->status = 0;
		
		if($fp = fsockopen(
					$host,
					$port,
					$errno,
					$errstr,
					$this->_fp_timeout
					))
		{
			// socket connection succeeded

			return true;
		}
		else
		{
			// socket connection failed
			$this->status = $errno;
			switch($errno)
			{
				case -3:
					$this->error="socket creation failed (-3)";
				case -4:
					$this->error="dns lookup failure (-4)";
				case -5:
					$this->error="connection refused or timed out (-5)";
				default:
					$this->error="connection failed (".$errno.")";
			}
			return false;
		}
	}
/*======================================================================*\
	Function:	_disconnect
	Purpose:	disconnect a socket connection
	Input:		$fp	file pointer
\*======================================================================*/
	
	function _disconnect($fp)
	{
		return(fclose($fp));
	}

	
/*======================================================================*\
	Function:	_prepare_post_body
	Purpose:	Prepare post body according to encoding type
	Input:		$formvars  - form variables
				$formfiles - form upload files
	Output:		post body
\*======================================================================*/
	
	function _prepare_post_body($formvars, $formfiles)
	{
		settype($formvars, "array");
		settype($formfiles, "array");

		if (count($formvars) == 0 && count($formfiles) == 0)
			return;
		
		switch ($this->_submit_type) {
			case "application/x-www-form-urlencoded":
				reset($formvars);
				while(list($key,$val) = each($formvars)) {
					if (is_array($val) || is_object($val)) {
						while (list($cur_key, $cur_val) = each($val)) {
							$postdata .= urlencode($key)."[]=".urlencode($cur_val)."&";
						}
					} else
						$postdata .= urlencode($key)."=".urlencode($val)."&";
				}
				break;

			case "multipart/form-data":
				$this->_mime_boundary = "Snoopy".md5(uniqid(microtime()));
				
				reset($formvars);
				while(list($key,$val) = each($formvars)) {
					if (is_array($val) || is_object($val)) {
						while (list($cur_key, $cur_val) = each($val)) {
							$postdata .= "--".$this->_mime_boundary."\r\n";
							$postdata .= "Content-Disposition: form-data; name=\"$key\[\]\"\r\n\r\n";
							$postdata .= "$cur_val\r\n";
						}
					} else {
						$postdata .= "--".$this->_mime_boundary."\r\n";
						$postdata .= "Content-Disposition: form-data; name=\"$key\"\r\n\r\n";
						$postdata .= "$val\r\n";
					}
				}
				
				reset($formfiles);
				while (list($field_name, $file_names) = each($formfiles)) {
					settype($file_names, "array");
					while (list(, $file_name) = each($file_names)) {
						if (!is_readable($file_name)) continue;

						$fp = fopen($file_name, "r");
						$file_content = fread($fp, filesize($file_name));
						fclose($fp);
						$base_name = basename($file_name);

						$postdata .= "--".$this->_mime_boundary."\r\n";
						$postdata .= "Content-Disposition: form-data; name=\"$field_name\"; filename=\"$base_name\"\r\n\r\n";
						$postdata .= "$file_content\r\n";
					}
				}
				$postdata .= "--".$this->_mime_boundary."--\r\n";
				break;
		}

		return $postdata;
	}
}

?>