Calculate the BLAKE2b-512 checksum of a file. This method doesn't load
the entire file into memory. You may optionally supply a key to use in
the BLAKE2b hash.
/**
* UpdateFile constructor.
* @param array $data
*/
public function __construct(array $data)
{
$this->path = $data['path'];
$this->version = $data['version'];
$this->size = (int) ($data['size'] ?? \filesize($data['path']));
$this->hash = File::checksum($data['path']);
}
/**
* InstallFile constructor.
*
* @param Supplier $supplier
* @param array $data
*/
public function __construct(Supplier $supplier, array $data)
{
$this->hash = File::checksum($data['path']);
$this->releaseInfo = $data['data']['releaseinfo'];
$this->root = $data['data']['merkle_root'];
$this->path = $data['path'];
$this->size = (int) ($data['size'] ?? \filesize($data['path']));
$this->supplier = $supplier;
$this->version = $data['version'];
}
/**
* @covers File::checksum()
*/
public function testChecksum()
{
$csum = File::checksum(__DIR__ . '/tmp/paragon_avatar.png');
$this->assertEquals($csum, "09f9f74a0e742d057ca08394db4c2e444be88c0c94fe9a914c3d3758c7eccafb" . "8dd286e3d6bc37f353e76c0c5aa2036d978ca28ffaccfa59f5dc1f076c5517a0");
$data = \Sodium\randombytes_buf(32);
\file_put_contents(__DIR__ . '/tmp/garbage.dat', $data);
$hash = \Sodium\crypto_generichash($data, null, 64);
$file = File::checksum(__DIR__ . '/tmp/garbage.dat', null, true);
$this->assertEquals($hash, $file);
\unlink(__DIR__ . '/tmp/garbage.dat');
}
/**
* Process an upload. Either it returns an array with useful data,
* OR it throws an UploadError
*
* @param int|null $directoryId
* @param string $cabin
* @param array $file
* @param array $attribution Who uploaded it?
* @return array
* @throws UploadError
*/
public function processUpload($directoryId = null, string $cabin = '', array $file = [], array $attribution = []) : array
{
// First step: Validate our file data
switch ($file['error']) {
case UPLOAD_ERR_INI_SIZE:
case UPLOAD_ERR_FORM_SIZE:
throw new UploadError(\__('File is too large'));
case UPLOAD_ERR_PARTIAL:
throw new UploadError(\__('Partial file received'));
case UPLOAD_ERR_NO_TMP_DIR:
throw new UploadError(\__('Temporary directory does not exist'));
case UPLOAD_ERR_CANT_WRITE:
throw new UploadError(\__('Cannot write to temporary directory'));
case UPLOAD_ERR_OK:
// Continue
break;
}
if ($file['name'] === '..') {
throw new UploadError(\__('Invalid file name'));
}
if (\preg_match('#([^/]+)\\.([a-zA-Z0-9]+)$#', $file['name'], $matches)) {
$name = $matches[1];
$ext = $matches[2];
} elseif (\preg_match('#([^/\\.]+)$#', $file['name'], $matches)) {
$name = $matches[1];
$ext = 'txt';
} else {
throw new UploadError(\__('Invalid file name'));
}
// Actually upload the file.
$destination = $this->moveUploadedFile($file['tmp_name']);
$fullpath = AIRSHIP_UPLOADS . $destination;
// Get the MIME type and checksum
$type = $this->getMimeType($fullpath);
$state = State::instance();
$checksum = HaliteFile::checksum($fullpath, $state->keyring['cache.hash_key']);
// Begin transaction
$this->db->beginTransaction();
// Get a unique file name
$filename = $this->getUniqueFileName($name, $ext, $directoryId, $cabin);
// Insert the new record
$store = ['filename' => $filename, 'type' => $type, 'realname' => $destination, 'checksum' => $checksum, 'uploaded_by' => (int) ($attribution['uploaded_by'] ?? $this->getActiveUserId())];
if ($directoryId) {
$store['directory'] = (int) $directoryId;
} else {
$store['cabin'] = (string) $cabin;
}
if (!empty($attribution['author'])) {
$store['author'] = $attribution['author'];
}
$newId = $this->db->insertGet('airship_files', $store, 'fileid');
// Did our INSERT query fail?
if (!$this->db->commit()) {
// Clean up orphaned file, it was a database error.
\unlink($fullpath);
$this->db->rollBack();
throw new UploadError(\__('A database error occurred trying to save %s', 'default', $destination));
}
// Return metadata
return ['fileid' => $newId, 'name' => $filename, 'type' => $type, 'csum' => $checksum];
}
<?php
declare (strict_types=1);
require_once \dirname(__DIR__) . '/vendor/autoload.php';
/**
* Generate a BLAKE2b-512 checksum of a given file.
*/
if (isset($argv[1])) {
echo \ParagonIE\Halite\File::checksum($argv[1]), "\n";
}
