1 files changed, 58 insertions, 0 deletions
diff --git a/lib/private/app/dependencyanalyzer.php b/lib/private/app/dependencyanalyzer.php
new file mode 100644
index 00000000000..c76181926e2
--- /dev/null
+++ b/lib/private/app/dependencyanalyzer.php
@@ -0,0 +1,58 @@
+<?php
+ /**
+ * @author Thomas Müller
+ * @copyright 2014 Thomas Müller deepdiver@owncloud.com
+ *
+ * This file is licensed under the Affero General Public License version 3 or
+ * later.
+ * See the COPYING-README file.
+ */
+
+namespace OC\App;
+
+class DependencyAnalyzer {
+
+	/**
+	 * @param array $app
+	 * @param Platform $system
+	 * @param \OCP\IL10N $l
+	 */
+	function __construct(array $app, $system, $l) {
+		$this->system = $system;
+		$this->l = $l;
+		$this->missing = array();
+		$this->dependencies = array();
+		if (array_key_exists('dependencies', $app)) {
+			$this->dependencies = $app['dependencies'];
+		}
+	}
+
+	/**
+	 * @param array $app
+	 * @returns array of missing dependencies
+	 */
+	public function analyze() {
+		$this->analysePhpVersion();
+		return $this->missing;
+	}
+
+	private function analysePhpVersion() {
+		if (!array_key_exists('php', $this->dependencies)) {
+			return;
+		}
+
+		if (array_key_exists('min-version', $this->dependencies['php'])) {
+			$minVersion = $this->dependencies['php']['min-version'];
+			if (version_compare($this->system->getPhpVersion(), $minVersion, '<')) {
+				$this->missing[] = (string)$this->l->t('PHP %s or higher is required.', $minVersion);
+			}
+		}
+		if (array_key_exists('max-version', $this->dependencies['php'])) {
+			$maxVersion = $this->dependencies['php']['max-version'];
+			if (version_compare($this->system->getPhpVersion(), $maxVersion, '>')) {
+				$this->missing[] = (string)$this->l->t('PHP with a version less then %s is required.', $maxVersion);
+			}
+		}
+	}
+
+}