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[0] in function chmod in /var/www/hopeinstoughton_www/wp-content/plugins/simple-universal-google-analytics/main.php on line 8
[1] in function include_once in /var/www/hopeinstoughton_www/wp-settings.php on line 560
[2] in function require_once in /var/www/hopeinstoughton_www/wp-config.php on line 85
[3] in function require_once in /var/www/hopeinstoughton_www/wp-load.php on line 50
[4] in function require_once in /var/www/hopeinstoughton_www/wp-blog-header.php on line 13
[5] in function require in /var/www/hopeinstoughton_www/index.php on line 17

<?php

// copied from agentLinux
// Connect to a server, also test connection_aborted
    require_once realpath(__DIR__ . '/../../output/model/output_base.php');

// to do: run in background; capture output; pipe to pkp; view update in realtime

class Connection {

	private $DATA;
	protected $timeout;
	// while this is enabled, crontab cannot run - ownership problem:
//	protected $logging = '/phil/connection.txt';
	protected $logging = FALSE;
    protected $output_transport;        // class for returning process output to the user.
	private $lp = FALSE;
	private $x_script;
	public $error_output;
	private $operatingsystem;
	private $temp;

    public function __construct() {
        # attach the appropriate `output_base` class
        $this->output_transport = \output_base::Transport();
		$this->operatingsystem = 'linux';
		$this->temp = '/tmp';
    }

	public function ServerData() {
		if (func_num_args()) {
			$this->DATA = func_get_arg(0);
			return $this;
		}
		return $this->DATA;
	}
	
	public function timeout() {
		if (func_num_args()) {
			$this->timeout = func_get_arg(0);
			return $this;
		}
		return $this->timeout;
	}

	public function LogFilename() {
		if (func_num_args()) {
			$this->logging = func_get_arg(0);
			return $this;
		}
		return $this->logging;
	}

	public function OperatingSystem() {
		if (func_num_args()) {
			$this->operatingsystem = func_get_arg(0);
			return $this;
		}
		return $this->operatingsystem;
	}

	public function Temp() {
		if (func_num_args()) {
			$this->temp = func_get_arg(0);
			return $this;
		}
		return $this->temp;
	}
	
	public function isWindows() {
		return stripos($this->operatingsystem, 'WIN') === 0;
	}
	
	public function getServerId() {
		return $this->DATA->server_id;
	}

	public function Log($message) {
		if ($this->logging !== FALSE) {
			if ($this->lp === FALSE) $this->lp = fopen($this->logging, 'a');
			$dt = date('Y-m-d H:i:s');
			if (is_resource($this->lp)) {
				fwrite($this->lp, "$dt: {$message}\n");
			}
		}
	}
	
	public function LogOutput($remotecommand) {
		if (is_resource($this->lp)) {
			$output = $remotecommand->output;
			if (substr($output, 0, 2) == "\x1f\x8b") {
				fwrite($this->lp, "(gzipped output)\n");
				$output = gzdecode($output);
			}
			fwrite($this->lp, "\n\n{$output}\n\n");
			if (trim($remotecommand->error) != '') {
				fwrite($this->lp, "\n\nSTDERR:\n{$remotecommand->error}\n\n");
			}
		}
	}

	// if logged in (and FULL), perform checks:
	//		uptime
	//		32/64bit
	//		webserver used:  apache, httpd, nginx
	//		mysql used. socket, version, etc/?
	//		... and any other checks requested by other modules
	// this will fail (will never return) if mod_rewrite is disabled

	public function GetServerStatus() {
		if ($this->isWindows()) {
			$sequence = hook_list('agent.windows');
		} else {
			$sequence = hook_list('agent.linux');
		}
		foreach($sequence as $priority => $items) {
			foreach($items as $item) {
				$item->connection($this);
                $this->Execute($item);
			}
		}
	}
    
    public function Execute($remote) {
        // this must be overridden.
    }

	public function ExecuteScript($script, $user, $decompress = FALSE) {
		$this->x_script = $script;
		$remote = remote_script([$this, '__generic_script'], NULL, $user, $this);
		$this->timeout(600);		// this may take a while
        $j = $this->Execute($remote);
		$this->timeout(15);
		$this->error_output = $remote->error;
		$output = $remote->output;
		if ($decompress && substr($output, 0, 2) == "\x1f\x8b") {
			$output = gzdecode($output);
		}
        // j = -3: script not executed. 
		return ($j == -3) ? FALSE : $output;
	}
	
	function __generic_script($remote) {
		return $this->x_script;
	}

	public function UploadFile($filename, $content) {
	}
	
	// upload the file, return commands to execute and delete target file
	protected function prepareScript($content, $user) {
		$content = str_replace("\r\n", "\n", $content);
		$filename = 'pkp' . mt_rand(100000,999999);
		$folder = $this->Temp();
		if ($this->isWindows()) {			// must always be a php file, and must self delete?
			$filename = $folder . '\\' . $filename;
			$this->Log("\n\nPUT: $filename\n\n$content\n");
			$this->UploadFile($filename, $content);
			// to do: eggshell
			return ['', $filename];			// client will locate php, run it, then delete the temp file
		} else {
			if (empty($folder)) $folder = '/tmp';
			$filename = $folder . '/' . $filename;
			$this->Log("\n\nPUT: $filename\n\n$content\n");
			$this->UploadFile($filename, $content);
			$executableCommand = $filename;
			// We don't need to do anything with the output - so direct it to seashells or eggshell.
			if ($this->output_transport->isBackground()) {
				$executableCommand = $this->output_transport->prepareCommand($executableCommand);
				if ($executableCommand === NULL) {      // no command to be executed - assume already done
					return [ NULL, NULL ];
				}
			}
			if ($user != 'root') {
				$prefix = "chmod 755 $filename; chown $user:$user $filename; ";
				$command = "$executableCommand; rm $filename";
			} else {
				$prefix = '';
				$command = "chmod 755 $filename; $executableCommand; rm $filename";
			}
			return [$prefix, $command];
		}
	}
	
	// log in
	public function EstablishConnection() {
		
	}

}