X-Git-Url: https://git.cyclocoop.org/%27.WWW_URL.%27admin/?a=blobdiff_plain;f=includes%2Fregistration%2FVersionChecker.php;h=a5d1fa1fcf6bc77072512711d0f361680556ced6;hb=dcb26aa2dbf360fec1382a95161eaf0420bc60ad;hp=93b4a14301ef428c7e2a12019257b503d1be698a;hpb=9c0eeb1a2d985f77134385975bf611ddc2bb8c7b;p=lhc%2Fweb%2Fwiklou.git

diff --git a/includes/registration/VersionChecker.php b/includes/registration/VersionChecker.php
index 93b4a14301..a5d1fa1fcf 100644
--- a/includes/registration/VersionChecker.php
+++ b/includes/registration/VersionChecker.php
@@ -40,6 +40,21 @@ class VersionChecker {
 	 */
 	private $phpVersion = false;
 
+	/**
+	 * @var string[] List of installed PHP extensions
+	 */
+	private $phpExtensions = [];
+
+	/**
+	 * @var bool[] List of provided abilities
+	 */
+	private $abilities = [];
+
+	/**
+	 * @var string[] List of provided ability errors
+	 */
+	private $abilityErrors = [];
+
 	/**
 	 * @var array Loaded extensions
 	 */
@@ -52,11 +67,21 @@ class VersionChecker {
 
 	/**
 	 * @param string $coreVersion Current version of core
+	 * @param string $phpVersion Current PHP version
+	 * @param string[] $phpExtensions List of installed PHP extensions
+	 * @param bool[] $abilities List of provided abilities
+	 * @param string[] $abilityErrors Error messages for the abilities
 	 */
-	public function __construct( $coreVersion, $phpVersion ) {
+	public function __construct(
+		$coreVersion, $phpVersion, array $phpExtensions,
+		array $abilities = [], array $abilityErrors = []
+	) {
 		$this->versionParser = new VersionParser();
 		$this->setCoreVersion( $coreVersion );
 		$this->setPhpVersion( $phpVersion );
+		$this->phpExtensions = $phpExtensions;
+		$this->abilities = $abilities;
+		$this->abilityErrors = $abilityErrors;
 	}
 
 	/**
@@ -112,7 +137,9 @@ class VersionChecker {
 	 *       'FooBar' => {
 	 *         'MediaWiki' => '>= 1.25.0',
 	 *         'platform': {
-	 *           'php': '>= 7.0.0'
+	 *           'php': '>= 7.0.0',
+	 *           'ext-foo': '*',
+	 *           'ability-bar': true
 	 *         },
 	 *         'extensions' => {
 	 *           'FooBaz' => '>= 1.25.0'
@@ -151,6 +178,7 @@ class VersionChecker {
 					case 'platform':
 						foreach ( $values as $dependency => $constraint ) {
 							if ( $dependency === 'php' ) {
+								// PHP version
 								$phpError = $this->handleDependency(
 									$this->phpVersion,
 									$constraint,
@@ -166,6 +194,54 @@ class VersionChecker {
 										'type' => 'incompatible-php',
 									];
 								}
+							} elseif ( substr( $dependency, 0, 4 ) === 'ext-' ) {
+								// PHP extensions
+								$phpExtension = substr( $dependency, 4 );
+								if ( $constraint !== '*' ) {
+									throw new UnexpectedValueException( 'Version constraints for '
+										. 'PHP extensions are not supported in ' . $extension );
+								}
+								if ( !in_array( $phpExtension, $this->phpExtensions, true ) ) {
+									$errors[] = [
+										'msg' =>
+											"{$extension} requires {$phpExtension} PHP extension "
+											. "to be installed."
+										,
+										'type' => 'missing-phpExtension',
+										'missing' => $phpExtension,
+									];
+								}
+							} elseif ( substr( $dependency, 0, 8 ) === 'ability-' ) {
+								// Other abilities the environment might provide.
+								$ability = substr( $dependency, 8 );
+								if ( !isset( $this->abilities[$ability] ) ) {
+									throw new UnexpectedValueException( 'Dependency type '
+									. $dependency . ' unknown in ' . $extension );
+								}
+								if ( !is_bool( $constraint ) ) {
+									throw new UnexpectedValueException( 'Only booleans are '
+										. 'allowed to to indicate the presence of abilities '
+										. 'in ' . $extension );
+								}
+
+								if ( $constraint === true &&
+									$this->abilities[$ability] !== true
+								) {
+									// add custom error message for missing ability if specified
+									$customMessage = '';
+									if ( isset( $this->abilityErrors[$ability] ) ) {
+										$customMessage = ': ' . $this->abilityErrors[$ability];
+									}
+
+									$errors[] = [
+										'msg' =>
+											"{$extension} requires \"{$ability}\" ability"
+											. $customMessage
+										,
+										'type' => 'missing-ability',
+										'missing' => $ability,
+									];
+								}
 							} else {
 								// add other platform dependencies here
 								throw new UnexpectedValueException( 'Dependency type ' . $dependency .