1 files changed, 90 insertions, 0 deletions
diff --git a/library/symfony/process/ExecutableFinder.php b/library/symfony/process/ExecutableFinder.php
new file mode 100644
index 000000000..fa11cb6e4
--- /dev/null
+++ b/library/symfony/process/ExecutableFinder.php
@@ -0,0 +1,90 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Process;
+
+/**
+ * Generic executable finder.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ * @author Johannes M. Schmitt <schmittjoh@gmail.com>
+ */
+class ExecutableFinder
+{
+    private $suffixes = array('.exe', '.bat', '.cmd', '.com');
+
+    /**
+     * Replaces default suffixes of executable.
+     *
+     * @param array $suffixes
+     */
+    public function setSuffixes(array $suffixes)
+    {
+        $this->suffixes = $suffixes;
+    }
+
+    /**
+     * Adds new possible suffix to check for executable.
+     *
+     * @param string $suffix
+     */
+    public function addSuffix($suffix)
+    {
+        $this->suffixes[] = $suffix;
+    }
+
+    /**
+     * Finds an executable by name.
+     *
+     * @param string $name      The executable name (without the extension)
+     * @param string $default   The default to return if no executable is found
+     * @param array  $extraDirs Additional dirs to check into
+     *
+     * @return string The executable path or default value
+     */
+    public function find($name, $default = null, array $extraDirs = array())
+    {
+        if (ini_get('open_basedir')) {
+            $searchPath = explode(PATH_SEPARATOR, ini_get('open_basedir'));
+            $dirs = array();
+            foreach ($searchPath as $path) {
+                // Silencing against https://bugs.php.net/69240
+                if (@is_dir($path)) {
+                    $dirs[] = $path;
+                } else {
+                    if (basename($path) == $name && is_executable($path)) {
+                        return $path;
+                    }
+                }
+            }
+        } else {
+            $dirs = array_merge(
+                explode(PATH_SEPARATOR, getenv('PATH') ?: getenv('Path')),
+                $extraDirs
+            );
+        }
+
+        $suffixes = array('');
+        if ('\\' === DIRECTORY_SEPARATOR) {
+            $pathExt = getenv('PATHEXT');
+            $suffixes = $pathExt ? explode(PATH_SEPARATOR, $pathExt) : $this->suffixes;
+        }
+        foreach ($suffixes as $suffix) {
+            foreach ($dirs as $dir) {
+                if (is_file($file = $dir.DIRECTORY_SEPARATOR.$name.$suffix) && ('\\' === DIRECTORY_SEPARATOR || is_executable($file))) {
+                    return $file;
+                }
+            }
+        }
+
+        return $default;
+    }
+}