defuseCryption() - Code Metrics - Inspection of "3.0.0" - nilsteampassnet/TeamPass - Measure and Improve Code Quality continuously with Scrutinizer

Passed

Push — teampass_3.0 ( 416a97...870788 )

by Nils

created 2019-02-17 15:12 UTC

defuseCryption() B

↳ Parent: Project

Complexity

Conditions	10
Paths	52

Size

Total Lines	45
Code Lines	32

Duplication

Lines	0
Ratio	0 %

Importance

Changes	1
Bugs	0	Features	0

Metric	Value
cc	10
eloc	32
c	1
b	0
f	0
nc	52
nop	3
dl	0
loc	45
rs	7.6666

How to fix Complexity

<?php


/**
 * Undocumented function
 *
 * @param string $message   Message
 * @param string $ascii_key Key
 * @param string $type      Type
 *
 * @return array
 */
function defuseCryption($message, $ascii_key, $type)
{
    // load PhpEncryption library
    $path = '../includes/libraries/Encryption/Encryption/';

    include_once $path.'Crypto.php';
    include_once $path.'Encoding.php';
    include_once $path.'DerivedKeys.php';
    include_once $path.'Key.php';
    include_once $path.'KeyOrPassword.php';
    include_once $path.'File.php';
    include_once $path.'RuntimeTests.php';
    include_once $path.'KeyProtectedByPassword.php';
    include_once $path.'Core.php';

    // init
    $err = '';
    if (empty($ascii_key) === true) {
        $ascii_key = file_get_contents(SECUREPATH.'/teampass-seckey.txt');
    }

    // convert KEY
    $key = \Defuse\Crypto\Key::loadFromAsciiSafeString($ascii_key);

    try {
        if ($type === 'encrypt') {
            $text = \Defuse\Crypto\Crypto::encrypt($message, $key);
        } elseif ($type === 'decrypt') {
            $text = \Defuse\Crypto\Crypto::decrypt($message, $key);
        }
    } catch (Defuse\Crypto\Exception\WrongKeyOrModifiedCiphertextException $ex) {
        $err = 'an attack! either the wrong key was loaded, or the ciphertext has changed since it was created either corrupted in the database or intentionally modified by someone trying to carry out an attack.';
    } catch (Defuse\Crypto\Exception\BadFormatException $ex) {
        $err = $ex;
    } catch (Defuse\Crypto\Exception\EnvironmentIsBrokenException $ex) {
        $err = $ex;
    } catch (Defuse\Crypto\Exception\CryptoException $ex) {
        $err = $ex;
    } catch (Defuse\Crypto\Exception\IOException $ex) {
        $err = $ex;
    }

    return array(
        'string' => isset($text) ? $text : '',
        'error' => $err,
    );
}


/**
 * Decrypt a defuse string if encrypted
 *
 * @param string $value Encrypted string
 *
 * @return string
 */
function defuse_return_decrypted($value)
{
    if (substr($value, 0, 3) === "def") {
        $value = defuseCryption(
            $value,
            "",
            "decrypt"
        )['string'];
    }
    return $value;
}

/**
 * Function permits to get the value from a line
 *
 * @param string $val A string
 *
 * @return void
 */
function getSettingValue($val)
{
    $val = trim(strstr($val, "="));
    return trim(str_replace('"', '', substr($val, 1, strpos($val, ";") - 1)));

}

/**
 * Undocumented function
 *
 * @param string $dbname     DB
 * @param string $column     Column
 * @param string $columnAttr Attribute
 *
 * @return boolean
 */
function addColumnIfNotExist($dbname, $column, $columnAttr = "VARCHAR(255) NULL")
{
    global $db_link;
    $exists = false;
    $columns = mysqli_query($db_link, "show columns from $dbname");
    while ($col = mysqli_fetch_assoc($columns)) {
    while ($col = mysqli_fetch_assoc(/** @scrutinizer ignore-type */ $columns)) {
        if ($col['Field'] == $column) {
            $exists = true;

            return true;
        }
    }
    if (!$exists) {

        return mysqli_query($db_link, "ALTER TABLE `$dbname` ADD `$column`  $columnAttr");

    }

    return false;
}

/**
 * Undocumented function
 *
 * @param string $table Table
 * @param string $index Index
 * @param string $sql   SQL
 *
 * @return array
 */
function addIndexIfNotExist($table, $index, $sql)
{
    global $db_link;

    $mysqli_result = mysqli_query($db_link, "SHOW INDEX FROM $table WHERE key_name LIKE \"$index\"");
    $res = mysqli_fetch_row($mysqli_result);
    $res = mysqli_fetch_row(/** @scrutinizer ignore-type */ $mysqli_result);

    // if index does not exist, then add it
    if (!$res) {
        $res = mysqli_query(
            $db_link,
            "ALTER TABLE `$table` ".$sql
        );
    }

    return $res;

}

/**
 * Undocumented function
 *
 * @param string $tablename Table
 *
 * @return boolean
 */
function tableExists($tablename)
{
    global $db_link, $database;

    $res = mysqli_query(
        $db_link,
        "SELECT COUNT(*) as count
        FROM information_schema.tables
        WHERE table_schema = '".$database."'
        AND table_name = '$tablename'"
    );

    if ($res > 0) {
        return true;
    }

    return false;
}

/**
 * Undocumented function
 *
 * @param string $txt My text
 *
 * @return string
 */
function cleanFields($txt)
{
    $tmp = str_replace(",", ";", trim($txt));
    if (empty($tmp)) {
        return $tmp;
    }
    if ($tmp === ";") {
        return "";
    }
    if (strpos($tmp, ';') === 0) {
        $tmp = substr($tmp, 1);
    }
    if (substr($tmp, -1) !== ";") {
        $tmp = $tmp.";";
    }
    return $tmp;
}

/**
 * Undocumented function
 *
 * @return string
 */
function generateRandomKey()
{
    // load passwordLib library
    $path = '../includes/libraries/PasswordGenerator/Generator/';
    include_once $path.'ComputerPasswordGenerator.php';

    $generator = new PasswordGenerator\Generator\ComputerPasswordGenerator();

    $generator->setLength(40);
    $generator->setSymbols(false);
    $generator->setLowercase(true);
    $generator->setUppercase(true);
    $generator->setNumbers(true);

    $key = $generator->generatePasswords();

    return $key[0];
}


nilsteampassnet / TeamPass

Push — teampass_3.0 ( 416a97...870788 )

defuseCryption() B

Complexity

Size

Duplication

Importance

How to fix Complexity

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Duplication Side-by-Side

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