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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,204 @@ | ||
| <?php | ||
|
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| declare(strict_types = 1); | ||
|
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| /* | ||
| * This file is part of PHAR Utils. | ||
| * | ||
| * (c) Jordi Boggiano <[email protected]> | ||
| * | ||
| * @source https://github.com/Seldaek/phar-utils/commit/8dbab3e508113310354194c83719ca343b4ad9f4 | ||
| * | ||
| * For the full copyright and license information, please view the LICENSE | ||
| * file that was distributed with this source code. | ||
| */ | ||
|
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| namespace Seld\PharUtils; | ||
|
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| class Timestamps | ||
| { | ||
| /** | ||
| * @var string | ||
| */ | ||
| private $contents; | ||
|
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| /** | ||
| * @param string $file path to the phar file to use | ||
| */ | ||
| public function __construct(string $file) | ||
| { | ||
| $this->contents = file_get_contents($file); | ||
| } | ||
|
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| /** | ||
| * Updates each file's unix timestamps in the PHAR | ||
| * | ||
| * The PHAR signature can then be produced in a reproducible manner. | ||
| * | ||
| * @param int|\DateTimeInterface|string $timestamp Date string or DateTime or unix timestamp to use | ||
| */ | ||
| public function updateTimestamps($timestamp = null) | ||
| { | ||
| if ($timestamp instanceof \DateTime || $timestamp instanceof \DateTimeInterface) { | ||
| $timestamp = $timestamp->getTimestamp(); | ||
| } elseif (is_string($timestamp)) { | ||
| $timestamp = strtotime($timestamp); | ||
| } elseif (!is_int($timestamp)) { | ||
| $timestamp = strtotime('1984-12-24T00:00:00Z'); | ||
| } | ||
|
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| // detect manifest offset / end of stub | ||
| if (!preg_match('{__HALT_COMPILER\(\);(?: +\?>)?\r?\n}', $this->contents, $match, PREG_OFFSET_CAPTURE)) { | ||
| throw new \RuntimeException('Could not detect the stub\'s end in the phar'); | ||
| } | ||
|
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| // set starting position and skip past manifest length | ||
| $pos = $match[0][1] + strlen($match[0][0]); | ||
| $stubEnd = $pos + $this->readUint($pos, 4); | ||
| $pos += 4; | ||
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| $numFiles = $this->readUint($pos, 4); | ||
| $pos += 4; | ||
|
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| // skip API version (YOLO) | ||
| $pos += 2; | ||
|
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| // skip PHAR flags | ||
| $pos += 4; | ||
|
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| $aliasLength = $this->readUint($pos, 4); | ||
| $pos += 4 + $aliasLength; | ||
|
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| $metadataLength = $this->readUint($pos, 4); | ||
| $pos += 4 + $metadataLength; | ||
|
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| while ($pos < $stubEnd) { | ||
| $filenameLength = $this->readUint($pos, 4); | ||
| $pos += 4 + $filenameLength; | ||
|
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| // skip filesize | ||
| $pos += 4; | ||
|
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| // update timestamp to a fixed value | ||
| $timeStampBytes = pack('L', $timestamp); | ||
| $this->contents[$pos + 0] = $timeStampBytes[0]; | ||
| $this->contents[$pos + 1] = $timeStampBytes[1]; | ||
| $this->contents[$pos + 2] = $timeStampBytes[2]; | ||
| $this->contents[$pos + 3] = $timeStampBytes[3]; | ||
|
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| // skip timestamp, compressed file size, crc32 checksum and file flags | ||
| $pos += 4 * 4; | ||
|
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| $metadataLength = $this->readUint($pos, 4); | ||
| $pos += 4 + $metadataLength; | ||
|
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| $numFiles--; | ||
| } | ||
|
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| if ($numFiles !== 0) { | ||
| throw new \LogicException('All files were not processed, something must have gone wrong'); | ||
| } | ||
| } | ||
|
|
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| /** | ||
| * Saves the updated phar file, optionally with an updated signature. | ||
| * | ||
| * @param string $path | ||
| * @param int $signatureAlgo One of Phar::MD5, Phar::SHA1, Phar::SHA256 or Phar::SHA512 | ||
| * @return bool | ||
| */ | ||
| public function save(string $path, int $signatureAlgo) | ||
| { | ||
| $pos = $this->determineSignatureBegin(); | ||
|
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| $algos = [ | ||
| \Phar::MD5 => 'md5', | ||
| \Phar::SHA1 => 'sha1', | ||
| \Phar::SHA256 => 'sha256', | ||
| \Phar::SHA512 => 'sha512', | ||
| ]; | ||
|
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| if (!isset($algos[$signatureAlgo])) { | ||
| throw new \UnexpectedValueException('Invalid hash algorithm given: ' . $signatureAlgo . ' expected one of Phar::MD5, Phar::SHA1, Phar::SHA256 or Phar::SHA512'); | ||
| } | ||
| $algo = $algos[$signatureAlgo]; | ||
|
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| // re-sign phar | ||
| // signature | ||
| $signature = hash($algo, substr($this->contents, 0, $pos), true) | ||
| // sig type | ||
| . pack('L', $signatureAlgo) | ||
| // ohai Greg & Marcus | ||
| . 'GBMB'; | ||
|
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| $this->contents = substr($this->contents, 0, $pos) . $signature; | ||
|
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| return file_put_contents($path, $this->contents); | ||
| } | ||
|
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| private function readUint($pos, $bytes) | ||
| { | ||
| $res = unpack('V', substr($this->contents, $pos, $bytes)); | ||
|
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| return $res[1]; | ||
| } | ||
|
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| /** | ||
| * Determine the beginning of the signature. | ||
| * | ||
| * @return int | ||
| */ | ||
| private function determineSignatureBegin() | ||
| { | ||
| // detect signature position | ||
| if (!preg_match('{__HALT_COMPILER\(\);(?: +\?>)?\r?\n}', $this->contents, $match, PREG_OFFSET_CAPTURE)) { | ||
| throw new \RuntimeException('Could not detect the stub\'s end in the phar'); | ||
| } | ||
|
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| // set starting position and skip past manifest length | ||
| $pos = $match[0][1] + strlen($match[0][0]); | ||
| $manifestEnd = $pos + 4 + $this->readUint($pos, 4); | ||
|
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| $pos += 4; | ||
| $numFiles = $this->readUint($pos, 4); | ||
|
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| $pos += 4; | ||
|
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| // skip API version (YOLO) | ||
| $pos += 2; | ||
|
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| // skip PHAR flags | ||
| $pos += 4; | ||
|
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| $aliasLength = $this->readUint($pos, 4); | ||
| $pos += 4 + $aliasLength; | ||
|
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| $metadataLength = $this->readUint($pos, 4); | ||
| $pos += 4 + $metadataLength; | ||
|
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| $compressedSizes = 0; | ||
| while (($numFiles > 0) && ($pos < $manifestEnd - 24)) { | ||
| $filenameLength = $this->readUint($pos, 4); | ||
| $pos += 4 + $filenameLength; | ||
|
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| // skip filesize and timestamp | ||
| $pos += 2 * 4; | ||
|
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| $compressedSizes += $this->readUint($pos, 4); | ||
| // skip compressed file size, crc32 checksum and file flags | ||
| $pos += 3 * 4; | ||
|
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| $metadataLength = $this->readUint($pos, 4); | ||
| $pos += 4 + $metadataLength; | ||
|
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| $numFiles--; | ||
| } | ||
|
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| if ($numFiles !== 0) { | ||
| throw new \LogicException('All files were not processed, something must have gone wrong'); | ||
| } | ||
|
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| return $manifestEnd + $compressedSizes; | ||
| } | ||
|
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| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,4 +1,4 @@ | ||
| #!/bin/sh | ||
| #!/bin/bash | ||
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| ## | ||
| # @license http://unlicense.org/UNLICENSE The UNLICENSE | ||
|
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||
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