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composer
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Extract the ZIP utility functions from ArtifactRepository

pull/7994/head
Andreas Schempp 2019-02-16 18:46:59 +01:00
parent 69745745b3
commit 4d85e217c3
2 changed files with 100 additions and 62 deletions
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66
src/Composer/Repository/ArtifactRepository.php
View File

@ -16,6 +16,7 @@ use Composer\IO\IOInterface;
use Composer\Json\JsonFile;
use Composer\Package\Loader\ArrayLoader;
use Composer\Package\Loader\LoaderInterface;
use Composer\Util\Zip;
/**
* @author Serge Smertin <serg.smertin@gmail.com>
@ -80,73 +81,14 @@ class ArtifactRepository extends ArrayRepository implements ConfigurableReposito
}
}
/**
* Find a file by name, returning the one that has the shortest path.
*
* @param \ZipArchive $zip
* @param string $filename
* @return bool|int
*/
private function locateFile(\ZipArchive $zip, $filename)
{
$indexOfShortestMatch = false;
$lengthOfShortestMatch = -1;
for ($i = 0; $i < $zip->numFiles; $i++) {
$stat = $zip->statIndex($i);
if (strcmp(basename($stat['name']), $filename) === 0) {
$directoryName = dirname($stat['name']);
if ($directoryName == '.') {
//if composer.json is in root directory
//it has to be the one to use.
return $i;
}
if (strpos($directoryName, '\\') !== false ||
strpos($directoryName, '/') !== false) {
//composer.json files below first directory are rejected
continue;
}
$length = strlen($stat['name']);
if ($indexOfShortestMatch === false || $length < $lengthOfShortestMatch) {
//Check it's not a directory.
$contents = $zip->getFromIndex($i);
if ($contents !== false) {
$indexOfShortestMatch = $i;
$lengthOfShortestMatch = $length;
}
}
}
}
return $indexOfShortestMatch;
}
private function getComposerInformation(\SplFileInfo $file)
{
$zip = new \ZipArchive();
if ($zip->open($file->getPathname()) !== true) {
$composerFile = Zip::findFile($file->getPathname(), 'composer.json');
if (null === $composerFile) {
return false;
}
if (0 == $zip->numFiles) {
$zip->close();
return false;
}
$foundFileIndex = $this->locateFile($zip, 'composer.json');
if (false === $foundFileIndex) {
$zip->close();
return false;
}
$configurationFileName = $zip->getNameIndex($foundFileIndex);
$zip->close();
$composerFile = "zip://{$file->getPathname()}#$configurationFileName";
$json = file_get_contents($composerFile);
$package = JsonFile::parseJson($json, $composerFile);

96
src/Composer/Util/Zip.php Normal file
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@ -0,0 +1,96 @@
<?php
/*
* This file is part of Composer.
*
* (c) Nils Adermann <naderman@naderman.de>
* Jordi Boggiano <j.boggiano@seld.be>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Composer\Util;
/**
* @author Jordi Boggiano <j.boggiano@seld.be>
*/
class Zip
{
/**
* Finds the path to a file inside a ZIP archive.
*
* @param $pathToZip
* @param $filename
*
* @return string|null
*/
public static function findFile($pathToZip, $filename)
{
$zip = new \ZipArchive();
if ($zip->open($pathToZip) !== true) {
return null;
}
if (0 == $zip->numFiles) {
$zip->close();
return null;
}
$foundFileIndex = static::locateFile($zip, $filename);
if (false === $foundFileIndex) {
$zip->close();
return null;
}
$configurationFileName = $zip->getNameIndex($foundFileIndex);
$zip->close();
return "zip://{$pathToZip}#$configurationFileName";
}
/**
* Find a file by name, returning the one that has the shortest path.
*
* @param \ZipArchive $zip
* @param string $filename
* @return bool|int
*/
private static function locateFile(\ZipArchive $zip, $filename)
{
$indexOfShortestMatch = false;
$lengthOfShortestMatch = -1;
for ($i = 0; $i < $zip->numFiles; $i++) {
$stat = $zip->statIndex($i);
if (strcmp(basename($stat['name']), $filename) === 0) {
$directoryName = dirname($stat['name']);
if ($directoryName == '.') {
//if composer.json is in root directory
//it has to be the one to use.
return $i;
}
if (strpos($directoryName, '\\') !== false ||
strpos($directoryName, '/') !== false) {
//composer.json files below first directory are rejected
continue;
}
$length = strlen($stat['name']);
if ($indexOfShortestMatch === false || $length < $lengthOfShortestMatch) {
//Check it's not a directory.
$contents = $zip->getFromIndex($i);
if ($contents !== false) {
$indexOfShortestMatch = $i;
$lengthOfShortestMatch = $length;
}
}
}
}
return $indexOfShortestMatch;
}
}