Completed
Push — stable3.0 ( 04db6f )
by Robin
03:38
created

Connection   A

Complexity

Total Complexity 17

Size/Duplication

Total Lines 106
Duplicated Lines 0 %

Coupling/Cohesion

Components 1
Dependencies 4

Test Coverage

Coverage 74.51%

Importance

Changes 0
Metric Value
wmc 17
c 0
b 0
f 0
lcom 1
cbo 4
dl 0
loc 106
ccs 38
cts 51
cp 0.7451
rs 10

7 Methods

Rating   Name   Duplication   Size   Complexity  
A __construct() 0 4 1
A write() 0 3 1
A clearTillPrompt() 0 9 2
A isPrompt() 0 3 2
A close() 0 6 2
A unknownError() 0 12 3
B read() 0 26 6
1
<?php
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/**
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 * Copyright (c) 2014 Robin Appelman <[email protected]>
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 * This file is licensed under the Licensed under the MIT license:
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 * http://opensource.org/licenses/MIT
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 */
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namespace Icewind\SMB\Wrapped;
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use Icewind\SMB\Exception\AuthenticationException;
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use Icewind\SMB\Exception\ConnectException;
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use Icewind\SMB\Exception\ConnectionException;
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use Icewind\SMB\Exception\InvalidHostException;
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use Icewind\SMB\Exception\NoLoginServerException;
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class Connection extends RawConnection {
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	const DELIMITER = 'smb:';
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	const DELIMITER_LENGTH = 4;
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	/** @var Parser */
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	private $parser;
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23 765
	public function __construct($command, Parser $parser, $env = array()) {
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		parent::__construct($command, $env);
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		$this->parser = $parser;
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	}
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	/**
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	 * send input to smbclient
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	 *
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	 * @param string $input
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	 */
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	public function write($input) {
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		parent::write($input . PHP_EOL);
35 765
	}
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	/**
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	 * @throws ConnectException
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	 */
40 765
	public function clearTillPrompt() {
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		$this->write('');
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		do {
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			$promptLine = $this->readLine();
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			$this->parser->checkConnectionError($promptLine);
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		} while (!$this->isPrompt($promptLine));
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		$this->write('');
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		$this->readLine();
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	}
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	/**
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	 * get all unprocessed output from smbclient until the next prompt
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	 *
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	 * @param callable $callback (optional) callback to call for every line read
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	 * @return string[]
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	 * @throws AuthenticationException
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	 * @throws ConnectException
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	 * @throws ConnectionException
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	 * @throws InvalidHostException
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	 * @throws NoLoginServerException
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	 */
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	public function read(callable $callback = null) {
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		if (!$this->isValid()) {
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			throw new ConnectionException('Connection not valid');
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		}
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		$promptLine = $this->readLine(); //first line is prompt
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		$this->parser->checkConnectionError($promptLine);
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68 762
		$output = array();
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		$line = $this->readLine();
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		if ($line === false) {
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			$this->unknownError($promptLine);
0 ignored issues
show
Security Bug introduced by
It seems like $promptLine defined by $this->readLine() on line 65 can also be of type false; however, Icewind\SMB\Wrapped\Connection::unknownError() does only seem to accept string, did you maybe forget to handle an error condition?

This check looks for type mismatches where the missing type is false. This is usually indicative of an error condtion.

Consider the follow example

<?php

function getDate($date)
{
    if ($date !== null) {
        return new DateTime($date);
    }

    return false;
}

This function either returns a new DateTime object or false, if there was an error. This is a typical pattern in PHP programming to show that an error has occurred without raising an exception. The calling code should check for this returned false before passing on the value to another function or method that may not be able to handle a false.

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72
		}
73 762
		while (!$this->isPrompt($line)) { //next prompt functions as delimiter
74 756
			if (is_callable($callback)) {
75 6
				$result = $callback($line);
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				if ($result === false) { // allow the callback to close the connection for infinite running commands
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					$this->close(true);
78 6
					break;
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				}
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			} else {
81 750
				$output[] .= $line;
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			}
83 750
			$line = $this->readLine();
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		}
85 762
		return $output;
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	}
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	/**
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	 * Check
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	 *
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	 * @param $line
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	 * @return bool
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	 */
94 765
	private function isPrompt($line) {
95 765
		return mb_substr($line, 0, self::DELIMITER_LENGTH) === self::DELIMITER || $line === false;
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	}
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	/**
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	 * @param string $promptLine (optional) prompt line that might contain some info about the error
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	 * @throws ConnectException
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	 */
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	private function unknownError($promptLine = '') {
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		if ($promptLine) { //maybe we have some error we missed on the previous line
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			throw new ConnectException('Unknown error (' . $promptLine . ')');
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		} else {
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			$error = $this->readError(); // maybe something on stderr
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			if ($error) {
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				throw new ConnectException('Unknown error (' . $error . ')');
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			} else {
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				throw new ConnectException('Unknown error');
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			}
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		}
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	}
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115 765
	public function close($terminate = true) {
116 765
		if (is_resource($this->getInputStream())) {
117 765
			$this->write('close' . PHP_EOL);
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		}
119 765
		parent::close($terminate);
120 765
	}
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}
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