Add BinaryExistsCheck

README.md

@@ -72,19 +72,20 @@ EnvironmentCheckSuite:
 
 ## Available checks
 
- * `DatabaseCheck`: Check that the connection to the database is working, by ensuring that the table exists and that the table contain some records.
+ * `DatabaseCheck`: Check that the connection to the database is working, by ensuring that the table exists and that 
+ the table contain some records.
  * `URLCheck`: Check that a given URL is functioning, by default, the homepage.
- * `HasFunctionCheck`: Check that the given function exists.
-    This can be used to check that PHP modules or features are installed.
- * `HasClassCheck`: Check that the given class exists.
-    This can be used to check that PHP modules or features are installed.
- * `FileWriteableCheck`: Check that the given file is writeable.
- * `FileAgeCheck`: Checks for the maximum age of one or more files or folders.
-    Useful for files which should be frequently auto-generated, 
-    like static caches, as well as for backup files and folders.
+ * `HasFunctionCheck`: Check that the given function exists. This can be used to check that PHP modules or features 
+ are installed.
+ * `HasClassCheck`: Check that the given class exists. This can be used to check that PHP modules or features are 
+ installed.
+ * `FileWriteableCheck`: Check that the given file is writable.
+ * `FileAgeCheck`: Checks for the maximum age of one or more files or folders. Useful for files which should be 
+ frequently auto-generated, like static caches, as well as for backup files and folders.
  * `ExternalURLCheck`: Checks that one or more URLs are reachable via HTTP.
  * `SMTPConnectCheck`: Checks if the SMTP connection configured through PHP.ini works as expected.
  * `SolrIndexCheck`: Checks if the Solr cores of given class are available.
+ * `BinaryExistsCheck`: Checks if a binary is available on the server
 
 ## Authentication
 

code/DevCheckController.php

@@ -18,7 +18,9 @@ class DevCheckController extends Controller {
 	function index($request) {
 		$suiteName = $request->param('Suite') ? $request->param('Suite') : 'check';
 		$e = new EnvironmentChecker($suiteName, 'Environment status');
-		$e->init($this->config()->permission);  //check for admin permissions before running this check
+
+		$e->init($this->config()->permission);  // check for admin permissions before running this check
+
 		return $e;
 	}
 }

code/checks/BinaryExistsCheck.php

@@ -0,0 +1,43 @@
+<?php
+
+/**
+ * @package environmentcheck
+ */
+
+class BinaryExistsCheck implements EnvironmentCheck {
+
+	protected $binary;
+
+	function __construct($binary = "Member") {
+		$this->binary = $binary;
+	}
+
+	function check() {
+		$command = (PHP_OS == 'WINNT') ? 'where' : 'which';
+		$binary = $this->binary;
+
+		$process = proc_open(
+			"$command $binary",
+			array(
+				0 => array("pipe", "r"),
+				1 => array("pipe", "w"),
+				2 => array("pipe", "w"),
+			),
+			$pipes
+		);
+
+		if ($process !== false) {
+			$stdout = stream_get_contents($pipes[1]);
+			$stderr = stream_get_contents($pipes[2]);
+			fclose($pipes[1]);
+			fclose($pipes[2]);
+			proc_close($process);
+
+			if($stdout != '') {
+				return array(EnvironmentCheck::OK, '');
+			}
+		}
+
+		return array(EnvironmentCheck::ERROR, 'Could not execute '. $this->binary . ' in ');
+	}
+}

code/checks/DatabaseCheck.php

@@ -1,17 +1,14 @@
 <?php
-/**
- * This file contains a number of default environment checks that you can use.
- */
-
 
 /**
  * Check that the connection to the database is working, by ensuring that the table exists and that
  * the table contain some records.
  * By default, Member will be checked.
  * 
- * @param $checkTable The table that will be checked.
+ * @package environmentcheck
  */
 class DatabaseCheck implements EnvironmentCheck {
+
 	protected $checkTable;
 
 	function __construct($checkTable = "Member") {