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<?php
namespace PhpOffice\PhpSpreadsheet\Worksheet;
use PhpOffice\PhpSpreadsheet\Shared\PasswordHasher;
class Protection
{
const ALGORITHM_MD2 = 'MD2';
const ALGORITHM_MD4 = 'MD4';
const ALGORITHM_MD5 = 'MD5';
const ALGORITHM_SHA_1 = 'SHA-1';
const ALGORITHM_SHA_256 = 'SHA-256';
const ALGORITHM_SHA_384 = 'SHA-384';
const ALGORITHM_SHA_512 = 'SHA-512';
const ALGORITHM_RIPEMD_128 = 'RIPEMD-128';
const ALGORITHM_RIPEMD_160 = 'RIPEMD-160';
const ALGORITHM_WHIRLPOOL = 'WHIRLPOOL';
/**
* Sheet.
*
* @var bool
*/
private $sheet = false;
/**
* Objects.
*
* @var bool
*/
private $objects = false;
/**
* Scenarios.
*
* @var bool
*/
private $scenarios = false;
/**
* Format cells.
*
* @var bool
*/
private $formatCells = false;
/**
* Format columns.
*
* @var bool
*/
private $formatColumns = false;
/**
* Format rows.
*
* @var bool
*/
private $formatRows = false;
/**
* Insert columns.
*
* @var bool
*/
private $insertColumns = false;
/**
* Insert rows.
*
* @var bool
*/
private $insertRows = false;
/**
* Insert hyperlinks.
*
* @var bool
*/
private $insertHyperlinks = false;
/**
* Delete columns.
*
* @var bool
*/
private $deleteColumns = false;
/**
* Delete rows.
*
* @var bool
*/
private $deleteRows = false;
/**
* Select locked cells.
*
* @var bool
*/
private $selectLockedCells = false;
/**
* Sort.
*
* @var bool
*/
private $sort = false;
/**
* AutoFilter.
*
* @var bool
*/
private $autoFilter = false;
/**
* Pivot tables.
*
* @var bool
*/
private $pivotTables = false;
/**
* Select unlocked cells.
*
* @var bool
*/
private $selectUnlockedCells = false;
/**
* Hashed password.
*
* @var string
*/
private $password = '';
/**
* Algorithm name.
*
* @var string
*/
private $algorithm = '';
/**
* Salt value.
*
* @var string
*/
private $salt = '';
/**
* Spin count.
*
* @var int
*/
private $spinCount = 10000;
/**
* Create a new Protection.
*/
public function __construct()
{
}
/**
* Is some sort of protection enabled?
*
* @return bool
*/
public function isProtectionEnabled()
{
return $this->sheet ||
$this->objects ||
$this->scenarios ||
$this->formatCells ||
$this->formatColumns ||
$this->formatRows ||
$this->insertColumns ||
$this->insertRows ||
$this->insertHyperlinks ||
$this->deleteColumns ||
$this->deleteRows ||
$this->selectLockedCells ||
$this->sort ||
$this->autoFilter ||
$this->pivotTables ||
$this->selectUnlockedCells;
}
/**
* Get Sheet.
*
* @return bool
*/
public function getSheet()
{
return $this->sheet;
}
/**
* Set Sheet.
*
* @param bool $pValue
*
* @return $this
*/
public function setSheet($pValue)
{
$this->sheet = $pValue;
return $this;
}
/**
* Get Objects.
*
* @return bool
*/
public function getObjects()
{
return $this->objects;
}
/**
* Set Objects.
*
* @param bool $pValue
*
* @return $this
*/
public function setObjects($pValue)
{
$this->objects = $pValue;
return $this;
}
/**
* Get Scenarios.
*
* @return bool
*/
public function getScenarios()
{
return $this->scenarios;
}
/**
* Set Scenarios.
*
* @param bool $pValue
*
* @return $this
*/
public function setScenarios($pValue)
{
$this->scenarios = $pValue;
return $this;
}
/**
* Get FormatCells.
*
* @return bool
*/
public function getFormatCells()
{
return $this->formatCells;
}
/**
* Set FormatCells.
*
* @param bool $pValue
*
* @return $this
*/
public function setFormatCells($pValue)
{
$this->formatCells = $pValue;
return $this;
}
/**
* Get FormatColumns.
*
* @return bool
*/
public function getFormatColumns()
{
return $this->formatColumns;
}
/**
* Set FormatColumns.
*
* @param bool $pValue
*
* @return $this
*/
public function setFormatColumns($pValue)
{
$this->formatColumns = $pValue;
return $this;
}
/**
* Get FormatRows.
*
* @return bool
*/
public function getFormatRows()
{
return $this->formatRows;
}
/**
* Set FormatRows.
*
* @param bool $pValue
*
* @return $this
*/
public function setFormatRows($pValue)
{
$this->formatRows = $pValue;
return $this;
}
/**
* Get InsertColumns.
*
* @return bool
*/
public function getInsertColumns()
{
return $this->insertColumns;
}
/**
* Set InsertColumns.
*
* @param bool $pValue
*
* @return $this
*/
public function setInsertColumns($pValue)
{
$this->insertColumns = $pValue;
return $this;
}
/**
* Get InsertRows.
*
* @return bool
*/
public function getInsertRows()
{
return $this->insertRows;
}
/**
* Set InsertRows.
*
* @param bool $pValue
*
* @return $this
*/
public function setInsertRows($pValue)
{
$this->insertRows = $pValue;
return $this;
}
/**
* Get InsertHyperlinks.
*
* @return bool
*/
public function getInsertHyperlinks()
{
return $this->insertHyperlinks;
}
/**
* Set InsertHyperlinks.
*
* @param bool $pValue
*
* @return $this
*/
public function setInsertHyperlinks($pValue)
{
$this->insertHyperlinks = $pValue;
return $this;
}
/**
* Get DeleteColumns.
*
* @return bool
*/
public function getDeleteColumns()
{
return $this->deleteColumns;
}
/**
* Set DeleteColumns.
*
* @param bool $pValue
*
* @return $this
*/
public function setDeleteColumns($pValue)
{
$this->deleteColumns = $pValue;
return $this;
}
/**
* Get DeleteRows.
*
* @return bool
*/
public function getDeleteRows()
{
return $this->deleteRows;
}
/**
* Set DeleteRows.
*
* @param bool $pValue
*
* @return $this
*/
public function setDeleteRows($pValue)
{
$this->deleteRows = $pValue;
return $this;
}
/**
* Get SelectLockedCells.
*
* @return bool
*/
public function getSelectLockedCells()
{
return $this->selectLockedCells;
}
/**
* Set SelectLockedCells.
*
* @param bool $pValue
*
* @return $this
*/
public function setSelectLockedCells($pValue)
{
$this->selectLockedCells = $pValue;
return $this;
}
/**
* Get Sort.
*
* @return bool
*/
public function getSort()
{
return $this->sort;
}
/**
* Set Sort.
*
* @param bool $pValue
*
* @return $this
*/
public function setSort($pValue)
{
$this->sort = $pValue;
return $this;
}
/**
* Get AutoFilter.
*
* @return bool
*/
public function getAutoFilter()
{
return $this->autoFilter;
}
/**
* Set AutoFilter.
*
* @param bool $pValue
*
* @return $this
*/
public function setAutoFilter($pValue)
{
$this->autoFilter = $pValue;
return $this;
}
/**
* Get PivotTables.
*
* @return bool
*/
public function getPivotTables()
{
return $this->pivotTables;
}
/**
* Set PivotTables.
*
* @param bool $pValue
*
* @return $this
*/
public function setPivotTables($pValue)
{
$this->pivotTables = $pValue;
return $this;
}
/**
* Get SelectUnlockedCells.
*
* @return bool
*/
public function getSelectUnlockedCells()
{
return $this->selectUnlockedCells;
}
/**
* Set SelectUnlockedCells.
*
* @param bool $pValue
*
* @return $this
*/
public function setSelectUnlockedCells($pValue)
{
$this->selectUnlockedCells = $pValue;
return $this;
}
/**
* Get hashed password.
*
* @return string
*/
public function getPassword()
{
return $this->password;
}
/**
* Set Password.
*
* @param string $pValue
* @param bool $pAlreadyHashed If the password has already been hashed, set this to true
*
* @return $this
*/
public function setPassword($pValue, $pAlreadyHashed = false)
{
if (!$pAlreadyHashed) {
$salt = $this->generateSalt();
$this->setSalt($salt);
$pValue = PasswordHasher::hashPassword($pValue, $this->getAlgorithm(), $this->getSalt(), $this->getSpinCount());
}
$this->password = $pValue;
return $this;
}
/**
* Create a pseudorandom string.
*/
private function generateSalt(): string
{
return base64_encode(random_bytes(16));
}
/**
* Get algorithm name.
*/
public function getAlgorithm(): string
{
return $this->algorithm;
}
/**
* Set algorithm name.
*/
public function setAlgorithm(string $algorithm): void
{
$this->algorithm = $algorithm;
}
/**
* Get salt value.
*/
public function getSalt(): string
{
return $this->salt;
}
/**
* Set salt value.
*/
public function setSalt(string $salt): void
{
$this->salt = $salt;
}
/**
* Get spin count.
*/
public function getSpinCount(): int
{
return $this->spinCount;
}
/**
* Set spin count.
*/
public function setSpinCount(int $spinCount): void
{
$this->spinCount = $spinCount;
}
/**
* Verify that the given non-hashed password can "unlock" the protection.
*/
public function verify(string $password): bool
{
if (!$this->isProtectionEnabled()) {
return true;
}
$hash = PasswordHasher::hashPassword($password, $this->getAlgorithm(), $this->getSalt(), $this->getSpinCount());
return $this->getPassword() === $hash;
}
/**
* Implement PHP __clone to create a deep clone, not just a shallow copy.
*/
public function __clone()
{
$vars = get_object_vars($this);
foreach ($vars as $key => $value) {
if (is_object($value)) {
$this->$key = clone $value;
} else {
$this->$key = $value;
}
}
}
}