update Piwik to version 2.16 (fixes #91)

www/analytics/core/CliMulti/CliPhp.php

@@ -0,0 +1,101 @@
+<?php
+/**
+ * Piwik - free/libre analytics platform
+ *
+ * @link http://piwik.org
+ * @license http://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later
+ */
+namespace Piwik\CliMulti;
+
+use Piwik\Common;
+
+class CliPhp
+{
+
+    public function findPhpBinary()
+    {
+        if (defined('PHP_BINARY')) {
+            if ($this->isHhvmBinary(PHP_BINARY)) {
+                return PHP_BINARY . ' --php';
+            }
+
+            if ($this->isValidPhpType(PHP_BINARY)) {
+                return PHP_BINARY . ' -q';
+            }
+        }
+
+        $bin = '';
+
+        if (!empty($_SERVER['_']) && Common::isPhpCliMode()) {
+            $bin = $this->getPhpCommandIfValid($_SERVER['_']);
+        }
+
+        if (empty($bin) && !empty($_SERVER['argv'][0]) && Common::isPhpCliMode()) {
+            $bin = $this->getPhpCommandIfValid($_SERVER['argv'][0]);
+        }
+
+        if (!$this->isValidPhpType($bin)) {
+            $bin = shell_exec('which php');
+        }
+
+        if (!$this->isValidPhpType($bin)) {
+            $bin = shell_exec('which php5');
+        }
+
+        if (!$this->isValidPhpType($bin)) {
+            return false;
+        }
+
+        $bin = trim($bin);
+
+        if (!$this->isValidPhpVersion($bin)) {
+            return false;
+        }
+
+        $bin .= ' -q';
+
+        return $bin;
+    }
+
+    private function isHhvmBinary($bin)
+    {
+        return false !== strpos($bin, 'hhvm');
+    }
+
+    private function isValidPhpVersion($bin)
+    {
+        global $piwik_minimumPHPVersion;
+        $cliVersion = $this->getPhpVersion($bin);
+        $isCliVersionValid = version_compare($piwik_minimumPHPVersion, $cliVersion) <= 0;
+        return $isCliVersionValid;
+    }
+
+    private function isValidPhpType($path)
+    {
+        return !empty($path)
+        && false === strpos($path, 'fpm')
+        && false === strpos($path, 'cgi')
+        && false === strpos($path, 'phpunit');
+    }
+
+    private function getPhpCommandIfValid($path)
+    {
+        if (!empty($path) && is_executable($path)) {
+            if (0 === strpos($path, PHP_BINDIR) && $this->isValidPhpType($path)) {
+                return $path;
+            }
+        }
+        return null;
+    }
+
+    /**
+     * @param string $bin PHP binary
+     * @return string
+     */
+    private function getPhpVersion($bin)
+    {
+        $command = sprintf("%s -r 'echo phpversion();'", $bin);
+        $version = shell_exec($command);
+        return $version;
+    }
+}