31aeedb98a
I benchmarked this again. The runtime of an unlimited explode() can be quite high. This is not really a DoS attack vector as it would require to post megabytes worth of input to the code, which will hit many other limits before. I still consider it good practice to use unlimited explode() only when it is actually allowed to return an unlimited amount of elements. Change-Id: I30f8ca5dba7b317bb4a046b9740fd736b4eea291
66 lines
1.5 KiB
PHP
66 lines
1.5 KiB
PHP
<?php
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/**
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* @license GPL-2.0-or-later
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* @author Jeroen De Dauw < jeroendedauw@gmail.com >
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*/
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class ComposerVersionNormalizer {
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/**
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* Ensures there is a dash in between the version and the stability suffix.
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*
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* Examples:
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* - 1.23RC => 1.23-RC
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* - 1.23alpha => 1.23-alpha
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* - 1.23alpha3 => 1.23-alpha3
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* - 1.23-beta => 1.23-beta
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*
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* @param string $version
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*
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* @return string
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* @throws InvalidArgumentException
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*/
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public function normalizeSuffix( $version ) {
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if ( !is_string( $version ) ) {
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throw new InvalidArgumentException( '$version must be a string' );
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}
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return preg_replace( '/^(\d[\d\.]*)([a-zA-Z]+)(\d*)$/', '$1-$2$3', $version, 1 );
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}
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/**
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* Ensures the version has four levels.
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* Version suffixes are supported, as long as they start with a dash.
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*
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* Examples:
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* - 1.19 => 1.19.0.0
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* - 1.19.2.3 => 1.19.2.3
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* - 1.19-alpha => 1.19.0.0-alpha
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* - 1337 => 1337.0.0.0
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*
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* @param string $version
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*
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* @return string
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* @throws InvalidArgumentException
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*/
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public function normalizeLevelCount( $version ) {
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if ( !is_string( $version ) ) {
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throw new InvalidArgumentException( '$version must be a string' );
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}
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$dashPosition = strpos( $version, '-' );
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if ( $dashPosition !== false ) {
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$suffix = substr( $version, $dashPosition );
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$version = substr( $version, 0, $dashPosition );
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}
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$version = implode( '.', array_pad( explode( '.', $version, 4 ), 4, '0' ) );
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if ( $dashPosition !== false ) {
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$version .= $suffix;
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}
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return $version;
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}
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}
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