From 361792dbd6b4182d88dbb740f7f1313b252a2bd7 Mon Sep 17 00:00:00 2001
From: Markus Staab <maggus.staab@googlemail.com>
Date: Fri, 23 Jan 2015 17:30:30 +0100
Subject: [PATCH] initial sensiolabs/melody integration

---
 .gitignore           |  1 +
 README.mdown         |  1 +
 composer.json        |  3 ++-
 index.php            | 21 +++++++++++++---
 lib/MelodyPlugin.php | 59 ++++++++++++++++++++++++++++++++++++++++++++
 5 files changed, 80 insertions(+), 5 deletions(-)
 create mode 100644 lib/MelodyPlugin.php

diff --git a/.gitignore b/.gitignore
index 7aa99c1..267264b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,3 @@
 vendor
 config.php
+composer.lock
diff --git a/README.mdown b/README.mdown
index 215171b..9c7d7a3 100644
--- a/README.mdown
+++ b/README.mdown
@@ -48,6 +48,7 @@ Changelog
 ---------
 
 - 1.5.0-dev
+  - Added melody-script integration. requires a composer binary within the systems/webservers PATH env variable.
   - Updated bundled ACE editor to 1.1.8
   - Layout is now flex-css based
   - Added a new `bootstrap` option to be include before source evaluation
diff --git a/composer.json b/composer.json
index 703b60e..6a6c06b 100644
--- a/composer.json
+++ b/composer.json
@@ -13,7 +13,8 @@
         }
     ],
     "require": {
-        "php": ">=5.2.0"
+        "php": ">=5.2.0",
+        "sensiolabs/melody": "@dev"
     },
     "extra": {
         "branch-alias": {
diff --git a/index.php b/index.php
index 46c789d..9f3a838 100644
--- a/index.php
+++ b/index.php
@@ -43,6 +43,8 @@ if (!in_array('*', $options['ip_whitelist'], true) &&
 
 define('PHP_CONSOLE_VERSION', '1.4.0');
 require 'krumo/class.krumo.php';
+require 'lib/MelodyPlugin.php';
+require 'vendor/autoload.php';
 
 ini_set('log_errors', 0);
 ini_set('display_errors', 1);
@@ -63,8 +65,7 @@ if (isset($_POST['code'])) {
         $code = stripslashes($code);
     }
 
-    // Important: replace only line by line, so the generated source lines will map 1:1 to the initial user input!
-    $code = preg_replace('{^\s*<\?(php)?\s*}i', '', $_POST['code']);
+    $code = $_POST['code'];
 
     // if there's only one line wrap it into a krumo() call
     if (preg_match('#^(?!var_dump|echo|print|< )([^\r\n]+?);?\s*$#is', $code, $m) && trim($m[1])) {
@@ -86,7 +87,19 @@ if (isset($_POST['code'])) {
     $memBefore = memory_get_usage(true);
     $start = microtime(true);
 
-    runCode($code, $options['bootstrap']);
+    $melodyPlugin = new MelodyPlugin();
+    if ($melodyPlugin->isMelodyScript($code)) {
+        if ($melodyPlugin->isScriptingSupported()) {
+            $melodyPlugin->runScript($code, $options['bootstrap']);
+        } else {
+            throw new Exception('php-console misses required dependencies to run melody scripts.');
+        }
+    } else {
+        // Important: replace only line by line, so the generated source lines will map 1:1 to the initial user input!
+        $code = preg_replace('{^\s*<\?(php)?\s*}i', '', $code);
+
+        runCode($code, $options['bootstrap']);
+    }
 
     // compare with peak, because regular memory could be free'd already
     $end = microtime(true);
@@ -190,4 +203,4 @@ if (isset($_POST['code'])) {
             </div>
         </div>
     </body>
-</html>
+</html>
\ No newline at end of file
diff --git a/lib/MelodyPlugin.php b/lib/MelodyPlugin.php
new file mode 100644
index 0000000..f66fca4
--- /dev/null
+++ b/lib/MelodyPlugin.php
@@ -0,0 +1,59 @@
+<?php
+
+use SensioLabs\Melody\Melody;
+use SensioLabs\Melody\Configuration\RunConfiguration;
+use Symfony\Component\Process\Process;
+use SensioLabs\Melody\Resource\ResourceParser;
+
+/**
+ * Class which integrates melody scripts into the php-console.
+ *
+ * @author mstaab
+ * @see https://github.com/sensiolabs/melody
+ */
+class MelodyPlugin {
+    public function isMelodyScript($source) {
+        return preg_match(ResourceParser::MELODY_PATTERN, $source);
+    }
+
+    public function isScriptingSupported() {
+        // the melody lib is bundled with the console, so the only additional requirement is a composer CLI
+        exec('which composer', $out, $ret);
+        return $ret === 0;
+    }
+
+    public function runScript($__source_code, $__bootstrap_file)
+    {
+        $tmpDir = sys_get_temp_dir() . DIRECTORY_SEPARATOR . 'melody-composer';
+
+        // make sure the melody subprocess has a composer home,
+        // which is not the case when running from webcontext
+        $_ENV['COMPOSER_HOME'] = $tmpDir;
+
+        $melody = new Melody();
+        $configuration = new RunConfiguration(/*true, true*/);
+        $executor = function (Process $process, $verbose)
+        {
+            $callback = function ($type, $text)
+            {
+                // we only have one output channel to the browser, just echo "all the things"
+                echo $text;
+            };
+            $process->run($callback);
+        };
+
+        //TODO missing $__bootstrap_file support
+        /*
+        if ($__bootstrap_file) {
+            require $__bootstrap_file;
+        }
+        */
+
+        $tmpFile = tempnam($tmpDir, '_script');
+        register_shutdown_function(function() use ($tmpFile) {
+            @unlink($tmpFile);
+        });
+        file_put_contents($tmpFile, $__source_code);
+        $melody->run($tmpFile, array(), $configuration, $executor);
+    }
+}
\ No newline at end of file