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<?php |
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/** |
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* Trait WordPress\Plugin_Check\Traits\License_Utils |
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* |
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* @package plugin-check |
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*/ |
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|
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namespace WordPress\Plugin_Check\Traits; |
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|
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/** |
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* Trait for license utilities. |
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* |
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* @since 1.3.0 |
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*/ |
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trait License_Utils { |
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|
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/** |
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* Returns normalized license. |
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* |
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* @since 1.3.0 |
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* |
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* @param string $license The license to normalize. |
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* @return string Normalized license. |
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*/ |
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protected function get_normalized_license( $license ) { |
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$license = trim( $license ); |
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$license = str_replace( ' ', ' ', $license ); |
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|
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// Remove some strings at the end. |
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$strings_to_remove = array( |
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'.', |
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'http://www.gnu.org/licenses/old-licenses/gpl-2.0.html', |
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'https://www.gnu.org/licenses/old-licenses/gpl-2.0.html', |
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'https://www.gnu.org/licenses/gpl-3.0.html', |
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' or later', |
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'-or-later', |
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'+', |
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); |
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|
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foreach ( $strings_to_remove as $string_to_remove ) { |
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$position = strrpos( $license, $string_to_remove ); |
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|
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if ( false !== $position ) { |
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// To remove from the end, the string to remove must be at the end. |
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if ( $position + strlen( $string_to_remove ) === strlen( $license ) ) { |
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$license = trim( substr( $license, 0, $position ) ); |
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} |
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} |
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} |
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|
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// Versions. |
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$license = str_replace( '-', '', $license ); |
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$license = str_replace( 'GNU General Public License (GPL)', 'GPL', $license ); |
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$license = str_replace( 'GNU General Public License', 'GPL', $license ); |
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$license = str_replace( ' version ', 'v', $license ); |
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$license = preg_replace( '/GPL\s*[-|\.]*\s*[v]?([0-9])(\.[0])?/i', 'GPL$1', $license, 1 ); |
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$license = preg_replace( '/Apache.*?([0-9])(\.[0])?/i', 'Apache$1', $license ); |
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$license = str_replace( '.', '', $license ); |
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|
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return $license; |
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} |
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|
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/** |
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* Checks if the license is valid identifier. |
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* |
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* @since 1.3.0 |
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* |
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* @param string $license License text. |
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* @return bool true if the license is valid identifier, otherwise false. |
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*/ |
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protected function is_license_valid_identifier( $license ) { |
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$match = preg_match( '/^([a-z0-9\-\+\.]+)(\sor\s([a-z0-9\-\+\.]+))*$/i', $license ); |
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|
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return ( false === $match || 0 === $match ) ? false : true; |
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} |
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|
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/** |
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* Checks if the license is GPL compatible. |
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* |
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* @since 1.3.0 |
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* |
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* @param string $license License text. |
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* @return bool true if the license is GPL compatible, otherwise false. |
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*/ |
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protected function is_license_gpl_compatible( $license ) { |
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$match = preg_match( '/GPL|GNU|MIT|FreeBSD|New BSD|BSD-3-Clause|BSD 3 Clause|OpenLDAP|Expat|Apache2|MPL20|ISC/im', $license ); |
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|
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return ( false === $match || 0 === $match ) ? false : true; |
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} |
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} |
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|
