<?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';
/**
* Autofilters are locked when sheet is protected, default true.
*
* @var ?bool
*/
private $autoFilter;
/**
* Deleting columns is locked when sheet is protected, default true.
*
* @var ?bool
*/
private $deleteColumns;
/**
* Deleting rows is locked when sheet is protected, default true.
*
* @var ?bool
*/
private $deleteRows;
/**
* Formatting cells is locked when sheet is protected, default true.
*
* @var ?bool
*/
private $formatCells;
/**
* Formatting columns is locked when sheet is protected, default true.
*
* @var ?bool
*/
private $formatColumns;
/**
* Formatting rows is locked when sheet is protected, default true.
*
* @var ?bool
*/
private $formatRows;
/**
* Inserting columns is locked when sheet is protected, default true.
*
* @var ?bool
*/
private $insertColumns;
/**
* Inserting hyperlinks is locked when sheet is protected, default true.
*
* @var ?bool
*/
private $insertHyperlinks;
/**
* Inserting rows is locked when sheet is protected, default true.
*
* @var ?bool
*/
private $insertRows;
/**
* Objects are locked when sheet is protected, default false.
*
* @var ?bool
*/
private $objects;
/**
* Pivot tables are locked when the sheet is protected, default true.
*
* @var ?bool
*/
private $pivotTables;
/**
* Scenarios are locked when sheet is protected, default false.
*
* @var ?bool
*/
private $scenarios;
/**
* Selection of locked cells is locked when sheet is protected, default false.
*
* @var ?bool
*/
private $selectLockedCells;
/**
* Selection of unlocked cells is locked when sheet is protected, default false.
*
* @var ?bool
*/
private $selectUnlockedCells;
/**
* Sheet is locked when sheet is protected, default false.
*
* @var ?bool
*/
private $sheet;
/**
* Sorting is locked when sheet is protected, default true.
*
* @var ?bool
*/
private $sort;
/**
* 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?
*/
public function isProtectionEnabled(): bool
{
return
$this->password !== '' ||
isset($this->sheet) ||
isset($this->objects) ||
isset($this->scenarios) ||
isset($this->formatCells) ||
isset($this->formatColumns) ||
isset($this->formatRows) ||
isset($this->insertColumns) ||
isset($this->insertRows) ||
isset($this->insertHyperlinks) ||
isset($this->deleteColumns) ||
isset($this->deleteRows) ||
isset($this->selectLockedCells) ||
isset($this->sort) ||
isset($this->autoFilter) ||
isset($this->pivotTables) ||
isset($this->selectUnlockedCells);
}
public function getSheet(): ?bool
{
return $this->sheet;
}
public function setSheet(?bool $sheet): self
{
$this->sheet = $sheet;
return $this;
}
public function getObjects(): ?bool
{
return $this->objects;
}
public function setObjects(?bool $objects): self
{
$this->objects = $objects;
return $this;
}
public function getScenarios(): ?bool
{
return $this->scenarios;
}
public function setScenarios(?bool $scenarios): self
{
$this->scenarios = $scenarios;
return $this;
}
public function getFormatCells(): ?bool
{
return $this->formatCells;
}
public function setFormatCells(?bool $formatCells): self
{
$this->formatCells = $formatCells;
return $this;
}
public function getFormatColumns(): ?bool
{
return $this->formatColumns;
}
public function setFormatColumns(?bool $formatColumns): self
{
$this->formatColumns = $formatColumns;
return $this;
}
public function getFormatRows(): ?bool
{
return $this->formatRows;
}
public function setFormatRows(?bool $formatRows): self
{
$this->formatRows = $formatRows;
return $this;
}
public function getInsertColumns(): ?bool
{
return $this->insertColumns;
}
public function setInsertColumns(?bool $insertColumns): self
{
$this->insertColumns = $insertColumns;
return $this;
}
public function getInsertRows(): ?bool
{
return $this->insertRows;
}
public function setInsertRows(?bool $insertRows): self
{
$this->insertRows = $insertRows;
return $this;
}
public function getInsertHyperlinks(): ?bool
{
return $this->insertHyperlinks;
}
public function setInsertHyperlinks(?bool $insertHyperLinks): self
{
$this->insertHyperlinks = $insertHyperLinks;
return $this;
}
public function getDeleteColumns(): ?bool
{
return $this->deleteColumns;
}
public function setDeleteColumns(?bool $deleteColumns): self
{
$this->deleteColumns = $deleteColumns;
return $this;
}
public function getDeleteRows(): ?bool
{
return $this->deleteRows;
}
public function setDeleteRows(?bool $deleteRows): self
{
$this->deleteRows = $deleteRows;
return $this;
}
public function getSelectLockedCells(): ?bool
{
return $this->selectLockedCells;
}
public function setSelectLockedCells(?bool $selectLockedCells): self
{
$this->selectLockedCells = $selectLockedCells;
return $this;
}
public function getSort(): ?bool
{
return $this->sort;
}
public function setSort(?bool $sort): self
{
$this->sort = $sort;
return $this;
}
public function getAutoFilter(): ?bool
{
return $this->autoFilter;
}
public function setAutoFilter(?bool $autoFilter): self
{
$this->autoFilter = $autoFilter;
return $this;
}
public function getPivotTables(): ?bool
{
return $this->pivotTables;
}
public function setPivotTables(?bool $pivotTables): self
{
$this->pivotTables = $pivotTables;
return $this;
}
public function getSelectUnlockedCells(): ?bool
{
return $this->selectUnlockedCells;
}
public function setSelectUnlockedCells(?bool $selectUnlockedCells): self
{
$this->selectUnlockedCells = $selectUnlockedCells;
return $this;
}
/**
* Get hashed password.
*
* @return string
*/
public function getPassword()
{
return $this->password;
}
/**
* Set Password.
*
* @param string $password
* @param bool $alreadyHashed If the password has already been hashed, set this to true
*
* @return $this
*/
public function setPassword($password, $alreadyHashed = false)
{
if (!$alreadyHashed) {
$salt = $this->generateSalt();
$this->setSalt($salt);
$password = PasswordHasher::hashPassword($password, $this->getAlgorithm(), $this->getSalt(), $this->getSpinCount());
}
$this->password = $password;
return $this;
}
public function setHashValue(string $password): self
{
return $this->setPassword($password, true);
}
/**
* 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): self
{
return $this->setAlgorithmName($algorithm);
}
/**
* Set algorithm name.
*/
public function setAlgorithmName(string $algorithm): self
{
$this->algorithm = $algorithm;
return $this;
}
public function getSalt(): string
{
return $this->salt;
}
public function setSalt(string $salt): self
{
return $this->setSaltValue($salt);
}
public function setSaltValue(string $salt): self
{
$this->salt = $salt;
return $this;
}
/**
* Get spin count.
*/
public function getSpinCount(): int
{
return $this->spinCount;
}
/**
* Set spin count.
*/
public function setSpinCount(int $spinCount): self
{
$this->spinCount = $spinCount;
return $this;
}
/**
* Verify that the given non-hashed password can "unlock" the protection.
*/
public function verify(string $password): bool
{
if ($this->password === '') {
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;
}
}
}
}