DependencyUtility.php

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<?php
 
/*
 * This file is part of the TYPO3 CMS project.
 *
 * It is free software; you can redistribute it and/or modify it under
 * the terms of the GNU General Public License, either version 2
 * of the License, or any later version.
 *
 * For the full copyright and license information, please read the
 * LICENSE.txt file that was distributed with this source code.
 *
 * The TYPO3 project - inspiring people to share!
 */
 
namespace ‪TYPO3\CMS\Extensionmanager\Utility;
 
use ‪TYPO3\CMS\Core\SingletonInterface;
use ‪TYPO3\CMS\Core\Utility\ExtensionManagementUtility;
use ‪TYPO3\CMS\Core\Utility\GeneralUtility;
use ‪TYPO3\CMS\Core\Utility\VersionNumberUtility;
use ‪TYPO3\CMS\Extensionmanager\Domain\Model\Dependency;
use ‪TYPO3\CMS\Extensionmanager\Domain\Model\Extension;
use ‪TYPO3\CMS\Extensionmanager\Domain\Repository\ExtensionRepository;
use ‪TYPO3\CMS\Extensionmanager\Exception;
use ‪TYPO3\CMS\Extensionmanager\Exception\MissingExtensionDependencyException;
use ‪TYPO3\CMS\Extensionmanager\Exception\MissingVersionDependencyException;
use ‪TYPO3\CMS\Extensionmanager\Exception\UnresolvedDependencyException;
use ‪TYPO3\CMS\Extensionmanager\Exception\UnresolvedPhpDependencyException;
use ‪TYPO3\CMS\Extensionmanager\Exception\UnresolvedTypo3DependencyException;
use ‪TYPO3\CMS\Extensionmanager\Service\ExtensionManagementService;
 
class ‪DependencyUtility implements ‪SingletonInterface
{
    protected ‪$extensionRepository;
 
    protected ‪$listUtility;
 
    protected ‪$emConfUtility;
 
    protected ‪$managementService;
 
    protected ‪$availableExtensions = [];
 
    protected ‪$localExtensionStorage = '';
 
    protected ‪$dependencyErrors = [];
 
    protected ‪$skipDependencyCheck = false;
 
    public function ‪injectExtensionRepository(‪ExtensionRepository ‪$extensionRepository)
    {
        $this->extensionRepository = ‪$extensionRepository;
    }
 
    public function ‪injectListUtility(‪ListUtility ‪$listUtility)
    {
        $this->listUtility = ‪$listUtility;
    }
 
    public function ‪injectEmConfUtility(EmConfUtility ‪$emConfUtility)
    {
        $this->emConfUtility = ‪$emConfUtility;
    }
 
    public function ‪injectManagementService(‪ExtensionManagementService ‪$managementService)
    {
        $this->managementService = ‪$managementService;
    }
 
    public function ‪setLocalExtensionStorage(‪$localExtensionStorage)
    {
        $this->localExtensionStorage = ‪$localExtensionStorage;
    }
 
    protected function ‪setAvailableExtensions()
    {
        $this->availableExtensions = $this->listUtility->getAvailableExtensions();
    }
 
    public function ‪setSkipDependencyCheck(‪$skipDependencyCheck)
    {
        $this->skipDependencyCheck = ‪$skipDependencyCheck;
    }
 
    public function ‪checkDependencies(‪Extension $extension)
    {
        $this->dependencyErrors = [];
        $dependencies = $extension->‪getDependencies();
        foreach ($dependencies as $dependency) {
            $identifier = strtolower($dependency->getIdentifier());
            try {
                if (in_array($identifier, ‪Dependency::$specialDependencies)) {
                    if (!$this->skipDependencyCheck) {
                        $methodName = 'check' . ucfirst($identifier) . 'Dependency';
                        $this->{$methodName}($dependency);
                    }
                } else {
                    if ($dependency->getType() === 'depends') {
                        $this->‪checkExtensionDependency($dependency);
                    }
                }
            } catch (‪UnresolvedDependencyException $e) {
                if (in_array($identifier, ‪Dependency::$specialDependencies)) {
                    $extensionKey = $extension->‪getExtensionKey();
                } else {
                    $extensionKey = $identifier;
                }
                if (!isset($this->dependencyErrors[$extensionKey])) {
                    $this->dependencyErrors[$extensionKey] = [];
                }
                $this->dependencyErrors[$extensionKey][] = [
                    'code' => $e->getCode(),
                    'message' => $e->getMessage()
                ];
            }
        }
    }
 
    public function ‪hasDependencyErrors()
    {
        return !empty($this->dependencyErrors);
    }
 
    public function ‪getDependencyErrors()
    {
        return ‪$this->dependencyErrors;
    }
 
    protected function ‪checkTypo3Dependency(‪Dependency $dependency)
    {
        $lowerCaseIdentifier = strtolower($dependency->‪getIdentifier());
        if ($lowerCaseIdentifier === 'typo3') {
            if (!($dependency->‪getLowestVersion() === '') && version_compare(‪VersionNumberUtility::getNumericTypo3Version(), $dependency->‪getLowestVersion()) === -1) {
                throw new ‪UnresolvedTypo3DependencyException(
                    'Your TYPO3 version is lower than this extension requires. It requires TYPO3 versions ' . $dependency->‪getLowestVersion() . ' - ' . $dependency->‪getHighestVersion(),
                    1399144499
                );
            }
            if (!($dependency->‪getHighestVersion() === '') && version_compare($dependency->‪getHighestVersion(), ‪VersionNumberUtility::getNumericTypo3Version()) === -1) {
                throw new ‪UnresolvedTypo3DependencyException(
                    'Your TYPO3 version is higher than this extension requires. It requires TYPO3 versions ' . $dependency->‪getLowestVersion() . ' - ' . $dependency->‪getHighestVersion(),
                    1399144521
                );
            }
        } else {
            throw new ‪UnresolvedTypo3DependencyException(
                'checkTypo3Dependency can only check TYPO3 dependencies. Found dependency with identifier "' . $dependency->‪getIdentifier() . '"',
                1399144551
            );
        }
        return true;
    }
 
    protected function ‪checkPhpDependency(‪Dependency $dependency)
    {
        $lowerCaseIdentifier = strtolower($dependency->‪getIdentifier());
        if ($lowerCaseIdentifier === 'php') {
            if (!($dependency->‪getLowestVersion() === '') && version_compare(PHP_VERSION, $dependency->‪getLowestVersion()) === -1) {
                throw new ‪UnresolvedPhpDependencyException(
                    'Your PHP version is lower than necessary. You need at least PHP version ' . $dependency->‪getLowestVersion(),
                    1377977857
                );
            }
            if (!($dependency->‪getHighestVersion() === '') && version_compare($dependency->‪getHighestVersion(), PHP_VERSION) === -1) {
                throw new ‪UnresolvedPhpDependencyException(
                    'Your PHP version is higher than allowed. You can use PHP versions ' . $dependency->‪getLowestVersion() . ' - ' . $dependency->‪getHighestVersion(),
                    1377977856
                );
            }
        } else {
            throw new ‪UnresolvedPhpDependencyException(
                'checkPhpDependency can only check PHP dependencies. Found dependency with identifier "' . $dependency->‪getIdentifier() . '"',
                1377977858
            );
        }
        return true;
    }
 
    protected function ‪checkExtensionDependency(‪Dependency $dependency)
    {
        $extensionKey = $dependency->‪getIdentifier();
        $extensionIsLoaded = $this->‪isDependentExtensionLoaded($extensionKey);
        if ($extensionIsLoaded === true) {
            $isLoadedVersionCompatible = $this->‪isLoadedVersionCompatible($dependency);
            if ($isLoadedVersionCompatible === true || $this->skipDependencyCheck) {
                return true;
            }
            $extension = $this->listUtility->getExtension($extensionKey);
            $loadedVersion = $extension->getPackageMetaData()->getVersion();
            if (version_compare($loadedVersion, $dependency->‪getHighestVersion()) === -1) {
                try {
                    $this->‪getExtensionFromRepository($extensionKey, $dependency);
                } catch (UnresolvedDependencyException $e) {
                    throw new MissingVersionDependencyException(
                        'The extension ' . $extensionKey . ' is installed in version ' . $loadedVersion
                            . ' but needed in version ' . $dependency->‪getLowestVersion() . ' - ' . $dependency->‪getHighestVersion() . ' and could not be fetched from TER',
                        1396302624
                    );
                }
            } else {
                throw new MissingVersionDependencyException(
                    'The extension ' . $extensionKey . ' is installed in version ' . $loadedVersion .
                    ' but needed in version ' . $dependency->‪getLowestVersion() . ' - ' . $dependency->‪getHighestVersion(),
                    1430561927
                );
            }
        } else {
            $extensionIsAvailable = $this->‪isDependentExtensionAvailable($extensionKey);
            if ($extensionIsAvailable === true) {
                $isAvailableVersionCompatible = $this->‪isAvailableVersionCompatible($dependency);
                if ($isAvailableVersionCompatible) {
                    $unresolvedDependencyErrors = ‪$this->dependencyErrors;
                    $this->managementService->markExtensionForInstallation($extensionKey);
                    $this->dependencyErrors = array_merge($unresolvedDependencyErrors, $this->dependencyErrors);
                } else {
                    $extension = $this->listUtility->getExtension($extensionKey);
                    $availableVersion = $extension->getPackageMetaData()->getVersion();
                    if (version_compare($availableVersion, $dependency->‪getHighestVersion()) === -1) {
                        try {
                            $this->‪getExtensionFromRepository($extensionKey, $dependency);
                        } catch (MissingExtensionDependencyException $e) {
                            if (!$this->skipDependencyCheck) {
                                throw new MissingVersionDependencyException(
                                    'The extension ' . $extensionKey . ' is available in version ' . $availableVersion
                                    . ' but is needed in version ' . $dependency->‪getLowestVersion() . ' - ' . $dependency->‪getHighestVersion() . ' and could not be fetched from TER',
                                    1430560390
                                );
                            }
                        }
                    } else {
                        if (!$this->skipDependencyCheck) {
                            throw new MissingVersionDependencyException(
                                'The extension ' . $extensionKey . ' is available in version ' . $availableVersion
                                . ' but is needed in version ' . $dependency->‪getLowestVersion() . ' - ' . $dependency->‪getHighestVersion(),
                                1430562374
                            );
                        }
                        // Dependency check is skipped and the local version has to be installed
                        $this->managementService->markExtensionForInstallation($extensionKey);
                    }
                }
            } else {
                $unresolvedDependencyErrors = ‪$this->dependencyErrors;
                $this->‪getExtensionFromRepository($extensionKey, $dependency);
                $this->dependencyErrors = array_merge($unresolvedDependencyErrors, $this->dependencyErrors);
            }
        }
 
        return false;
    }
 
    protected function ‪getExtensionFromRepository($extensionKey, Dependency $dependency)
    {
        if (!$this->‪getExtensionFromInExtensionRepository($extensionKey)) {
            $this->‪getExtensionFromTer($extensionKey, $dependency);
        }
    }
 
    protected function ‪getExtensionFromInExtensionRepository($extensionKey)
    {
        if ($this->localExtensionStorage !== '' && is_dir($this->localExtensionStorage)) {
            $extList = ‪GeneralUtility::get_dirs($this->localExtensionStorage);
            $extList = is_array($extList) ? $extList : [];
            if (in_array($extensionKey, $extList)) {
                $this->managementService->markExtensionForCopy($extensionKey, $this->localExtensionStorage);
                return true;
            }
        }
        return false;
    }
 
    protected function ‪getExtensionFromTer($extensionKey, ‪Dependency $dependency)
    {
        $isExtensionDownloadableFromTer = $this->‪isExtensionDownloadableFromTer($extensionKey);
        if (!$isExtensionDownloadableFromTer) {
            if (!$this->skipDependencyCheck) {
                if ($this->extensionRepository->countAll() > 0) {
                    throw new ‪MissingExtensionDependencyException(
                        'The extension ' . $extensionKey . ' is not available from TER.',
                        1399161266
                    );
                }
                throw new MissingExtensionDependencyException(
                    'The extension ' . $extensionKey . ' could not be checked. Please update your Extension-List from TYPO3 Extension Repository (TER).',
                    1430580308
                );
            }
            return;
        }
 
        $isDownloadableVersionCompatible = $this->‪isDownloadableVersionCompatible($dependency);
        if (!$isDownloadableVersionCompatible) {
            if (!$this->skipDependencyCheck) {
                throw new MissingVersionDependencyException(
                    'No compatible version found for extension ' . $extensionKey,
                    1399161284
                );
            }
            return;
        }
 
        $latestCompatibleExtensionByIntegerVersionDependency = $this->‪getLatestCompatibleExtensionByIntegerVersionDependency($dependency);
        if (!$latestCompatibleExtensionByIntegerVersionDependency instanceof Extension) {
            if (!$this->skipDependencyCheck) {
                throw new MissingExtensionDependencyException(
                    'Could not resolve dependency for "' . $dependency->‪getIdentifier() . '"',
                    1399161302
                );
            }
            return;
        }
 
        if ($this->‪isDependentExtensionLoaded($extensionKey)) {
            $this->managementService->markExtensionForUpdate($latestCompatibleExtensionByIntegerVersionDependency);
        } else {
            $this->managementService->markExtensionForDownload($latestCompatibleExtensionByIntegerVersionDependency);
        }
    }
 
    protected function ‪isDependentExtensionLoaded($extensionKey)
    {
        return ‪ExtensionManagementUtility::isLoaded($extensionKey);
    }
 
    protected function ‪isLoadedVersionCompatible(‪Dependency $dependency)
    {
        $extensionVersion = ‪ExtensionManagementUtility::getExtensionVersion($dependency->‪getIdentifier());
        return $this->‪isVersionCompatible($extensionVersion, $dependency);
    }
 
    protected function ‪isVersionCompatible($version, ‪Dependency $dependency)
    {
        if (!($dependency->‪getLowestVersion() === '') && version_compare($version, $dependency->‪getLowestVersion()) === -1) {
            return false;
        }
        if (!($dependency->‪getHighestVersion() === '') && version_compare($dependency->‪getHighestVersion(), $version) === -1) {
            return false;
        }
        return true;
    }
 
    protected function ‪isDependentExtensionAvailable($extensionKey)
    {
        $this->‪setAvailableExtensions();
        return array_key_exists($extensionKey, $this->availableExtensions);
    }
 
    protected function ‪isAvailableVersionCompatible(‪Dependency $dependency)
    {
        $this->‪setAvailableExtensions();
        $extensionData = $this->emConfUtility->includeEmConf(
            $dependency->‪getIdentifier(),
            $this->availableExtensions[$dependency->‪getIdentifier()]
        );
        return $this->‪isVersionCompatible($extensionData['version'], $dependency);
    }
 
    protected function ‪isExtensionDownloadableFromTer($extensionKey)
    {
        return $this->extensionRepository->countByExtensionKey($extensionKey) > 0;
    }
 
    protected function ‪isDownloadableVersionCompatible(‪Dependency $dependency)
    {
        $versions = $this->‪getLowestAndHighestIntegerVersions($dependency);
        $count = $this->extensionRepository->countByVersionRangeAndExtensionKey(
            $dependency->‪getIdentifier(),
            $versions['lowestIntegerVersion'],
            $versions['highestIntegerVersion']
        );
        return !empty($count);
    }
 
    protected function ‪getCompatibleExtension(iterable $extensions): ?‪Extension
    {
        foreach ($extensions as $extension) {
            $this->‪checkDependencies($extension);
            $extensionKey = $extension->getExtensionKey();
 
            if (isset($this->dependencyErrors[$extensionKey])) {
                // reset dependencyErrors and continue with next version
                unset($this->dependencyErrors[$extensionKey]);
                continue;
            }
 
            return $extension;
        }
 
        return null;
    }
 
    protected function ‪getLatestCompatibleExtensionByIntegerVersionDependency(‪Dependency $dependency)
    {
        $versions = $this->‪getLowestAndHighestIntegerVersions($dependency);
        $compatibleDataSets = $this->extensionRepository->findByVersionRangeAndExtensionKeyOrderedByVersion(
            $dependency->‪getIdentifier(),
            $versions['lowestIntegerVersion'],
            $versions['highestIntegerVersion']
        );
        return $this->‪getCompatibleExtension($compatibleDataSets);
    }
 
    protected function ‪getLowestAndHighestIntegerVersions(‪Dependency $dependency)
    {
        $lowestVersion = $dependency->‪getLowestVersion();
        $lowestVersionInteger = $lowestVersion ? ‪VersionNumberUtility::convertVersionNumberToInteger($lowestVersion) : 0;
        $highestVersion = $dependency->‪getHighestVersion();
        $highestVersionInteger = $highestVersion ? ‪VersionNumberUtility::convertVersionNumberToInteger($highestVersion) : 0;
        return [
            'lowestIntegerVersion' => $lowestVersionInteger,
            'highestIntegerVersion' => $highestVersionInteger
        ];
    }
 
    public function ‪findInstalledExtensionsThatDependOnMe($extensionKey)
    {
        $availableAndInstalledExtensions = $this->listUtility->getAvailableAndInstalledExtensionsWithAdditionalInformation();
        $dependentExtensions = [];
        foreach ($availableAndInstalledExtensions as $availableAndInstalledExtensionKey => $availableAndInstalledExtension) {
            if (isset($availableAndInstalledExtension['installed']) && $availableAndInstalledExtension['installed'] === true) {
                if (is_array($availableAndInstalledExtension['constraints']) && is_array($availableAndInstalledExtension['constraints']['depends']) && array_key_exists($extensionKey, $availableAndInstalledExtension['constraints']['depends'])) {
                    $dependentExtensions[] = $availableAndInstalledExtensionKey;
                }
            }
        }
        return $dependentExtensions;
    }
 
    public function ‪getExtensionsSuitableForTypo3Version($extensions)
    {
        $suitableExtensions = [];
        foreach ($extensions as $extension) {
            foreach ($extension->getDependencies() as $dependency) {
                if ($dependency->getIdentifier() === 'typo3') {
                    try {
                        if ($this->‪checkTypo3Dependency($dependency)) {
                            $suitableExtensions[] = $extension;
                        }
                    } catch (‪UnresolvedTypo3DependencyException $e) {
                    }
                    break;
                }
            }
        }
        return $suitableExtensions;
    }
 
    public function ‪filterYoungestVersionOfExtensionList(array $extensions, $showUnsuitable)
    {
        if (!$showUnsuitable) {
            $extensions = $this->‪getExtensionsSuitableForTypo3Version($extensions);
        }
        $filteredExtensions = [];
        foreach ($extensions as $extension) {
            $extensionKey = $extension->getExtensionKey();
            if (!array_key_exists($extensionKey, $filteredExtensions)) {
                $filteredExtensions[$extensionKey] = $extension;
                continue;
            }
            $currentVersion = $filteredExtensions[$extensionKey]->getVersion();
            $newVersion = $extension->getVersion();
            if (version_compare($newVersion, $currentVersion, '>')) {
                $filteredExtensions[$extensionKey] = $extension;
            }
        }
        return $filteredExtensions;
    }
}