Snoopy::fetch

	function fetch($URI)
	{

		//preg_match("|^([^:]+)://([^:/]+)(:[\d]+)*(.*)|",$URI,$URI_PARTS);
		$URI_PARTS = parse_url($URI);
		if (!empty($URI_PARTS["user"]))
			$this->user = $URI_PARTS["user"];
		if (!empty($URI_PARTS["pass"]))
			$this->pass = $URI_PARTS["pass"];
		if (empty($URI_PARTS["query"]))
			$URI_PARTS["query"] = '';
		if (empty($URI_PARTS["path"]))
			$URI_PARTS["path"] = '';

		switch(strtolower($URI_PARTS["scheme"]))
		{
			case "http":
				$this->host = $URI_PARTS["host"];
				if(!empty($URI_PARTS["port"]))
					$this->port = $URI_PARTS["port"];
				if($this->_connect($fp))
				{
					if($this->_isproxy)
					{
						// using proxy, send entire URI
						$this->_httprequest($URI,$fp,$URI,$this->_httpmethod);
					}
					else
					{
						$path = $URI_PARTS["path"].($URI_PARTS["query"] ? "?".$URI_PARTS["query"] : "");
						// no proxy, send only the path
						$this->_httprequest($path, $fp, $URI, $this->_httpmethod);
					}

					$this->_disconnect($fp);

					if($this->_redirectaddr)
					{
						/* url was redirected, check if we've hit the max depth */
						if($this->maxredirs > $this->_redirectdepth)
						{
							// only follow redirect if it's on this site, or offsiteok is true
							if(preg_match("|^http://".preg_quote($this->host)."|i",$this->_redirectaddr) || $this->offsiteok)
							{
								/* follow the redirect */
								$this->_redirectdepth++;
								$this->lastredirectaddr=$this->_redirectaddr;
								$this->fetch($this->_redirectaddr);
							}
						}
					}

					if($this->_framedepth < $this->maxframes && count($this->_frameurls) > 0)
					{
						$frameurls = $this->_frameurls;
						$this->_frameurls = array();

						foreach ( $frameurls as $frameurl )
						{
							if($this->_framedepth < $this->maxframes)
							{
								$this->fetch($frameurl);
								$this->_framedepth++;
							}
							else
								break;
						}
					}
				}
				else
				{
					return false;
				}
				return true;
				break;
			case "https":
				if(!$this->curl_path)
					return false;
				if(function_exists("is_executable"))
				    if (!is_executable($this->curl_path))
				        return false;
				$this->host = $URI_PARTS["host"];
				if(!empty($URI_PARTS["port"]))
					$this->port = $URI_PARTS["port"];
				if($this->_isproxy)
				{
					// using proxy, send entire URI
					$this->_httpsrequest($URI,$URI,$this->_httpmethod);
				}
				else
				{
					$path = $URI_PARTS["path"].($URI_PARTS["query"] ? "?".$URI_PARTS["query"] : "");
					// no proxy, send only the path
					$this->_httpsrequest($path, $URI, $this->_httpmethod);
				}

				if($this->_redirectaddr)
				{
					/* url was redirected, check if we've hit the max depth */
					if($this->maxredirs > $this->_redirectdepth)
					{
						// only follow redirect if it's on this site, or offsiteok is true
						if(preg_match("|^http://".preg_quote($this->host)."|i",$this->_redirectaddr) || $this->offsiteok)
						{
							/* follow the redirect */
							$this->_redirectdepth++;
							$this->lastredirectaddr=$this->_redirectaddr;
							$this->fetch($this->_redirectaddr);
						}
					}
				}

				if($this->_framedepth < $this->maxframes && count($this->_frameurls) > 0)
				{
					$frameurls = $this->_frameurls;
					$this->_frameurls = array();

					foreach ( $frameurls as $frameurl )
					{
						if($this->_framedepth < $this->maxframes)
						{
							$this->fetch($frameurl);
							$this->_framedepth++;
						}
						else
							break;
					}
				}
				return true;
				break;
			default:
				// not a valid protocol
				$this->error	=	'Invalid protocol "'.$URI_PARTS["scheme"].'"\n';
				return false;
				break;
		}
		return true;
	}