initial commit

Author: Nick Goris

.gitignore

@@ -0,0 +1,3 @@
+.idea
+composer.lock
+vendor

composer.json

@@ -0,0 +1,33 @@
+{
+    "name": "nckg/laravel-minify-html",
+    "description": "Minify your responses in Laravel 5.x",
+    "license": "MIT",
+    "authors": [
+        {
+            "name": "Nick Goris",
+            "email": "nickgoris@gmail.com"
+        }
+    ],
+    "require": {
+        "php" : "^7.0"
+    },
+    "require-dev": {
+        "illuminate/support": "~5.1.0|~5.2.0|~5.3.0",
+        "phpunit/phpunit": "5.*",
+        "orchestra/testbench": "^3.2",
+        "mockery/mockery": "^0.9.4"
+    },
+    "autoload": {
+        "psr-4": {
+            "Nckg\\Minify\\": "src/Nckg/Minify/"
+        }
+    },
+    "autoload-dev": {
+        "psr-4": {
+            "Nckg\\Minify\\Test\\": "tests"
+        }
+    },
+    "scripts": {
+        "test": "vendor/bin/phpunit"
+    }
+}

phpunit.xml

@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<phpunit backupGlobals="false"
+         backupStaticAttributes="false"
+         colors="true"
+         convertErrorsToExceptions="true"
+         convertNoticesToExceptions="true"
+         convertWarningsToExceptions="true"
+         processIsolation="false"
+         stopOnFailure="false">
+    <testsuites>
+        <testsuite name="Application Test Suite">
+            <directory suffix="Test.php">./tests</directory>
+        </testsuite>
+    </testsuites>
+</phpunit>

readme.md

@@ -0,0 +1,45 @@
+# HTML minifier
+
+## Introduction
+
+Very, very simple html minifier with Laravel 5.x support.
+
+## Code Samples
+
+```php
+$input = "<a href="/foo" class="bar  moo        ">Hello World</a>";
+$minifier = new Minifier();
+$output = $minifier->html($string); // <a href="/foo" class="bar moo ">Hello World</a>
+```
+
+## Installation
+
+You can install the package via composer:
+
+``` bash
+composer require nckg/laravel-html-minifier
+```
+If you are using Laravel you can add the middleware to your middleware providers
+
+```php
+// app/Http/Kernel.php
+/**
+ * The application's global HTTP middleware stack.
+ *
+ * @var array
+ */
+protected $middleware = [
+    ...
+    \Nckg\Minify\Middleware\MinifyResponse::class,
+];
+```
+
+## Testing
+
+``` bash
+composer test
+```
+
+## License
+
+The MIT License (MIT).

src/Nckg/Minify/Middleware/MinifyResponse.php

@@ -0,0 +1,29 @@
+<?php
+
+
+namespace Nckg\Minify\Middleware;
+
+use Closure;
+use Nckg\Minify\Minifier;
+
+class MinifyResponse
+{
+    /**
+     * Handle an incoming request.
+     *
+     * @param  \Illuminate\Http\Request  $request
+     * @param  \Closure  $next
+     * @return mixed
+     */
+    public function handle($request, Closure $next)
+    {
+        /** @var Response $response */
+        $response = $next($request);
+
+        if (app()->isLocal()) {
+            $response->setContent((new Minifier)->html($response->getContent()));
+        }
+
+        return $response;
+    }
+}

src/Nckg/Minify/Minifier.php

@@ -0,0 +1,28 @@
+<?php
+
+namespace Nckg\Minify;
+
+class Minifier
+{
+    public $htmlFilters = [
+        //Remove HTML comments except IE conditions
+        '/<!--(?!\s*(?:\[if [^\]]+]|<!|>))(?:(?!-->).)*-->/s' => '',
+        // Remove comments in the form /* */
+        '/(?<!\S)\/\/\s*[^\r\n]*/' => '',
+        // Shorten multiple white spaces
+        '/\s{2,}/' => ' ',
+        // Collapse new lines
+        '/(\r?\n)/' => '',
+    ];
+
+    /**
+     * @param string $html
+     * @return string
+     */
+    public function html(string $html): string
+    {
+        $output = preg_replace(array_keys($this->htmlFilters), array_values($this->htmlFilters), $html);
+
+        return $output;
+    }
+}

tests/MinifierTest.php

@@ -0,0 +1,67 @@
+<?php
+
+
+namespace Nckg\Minify\Test;
+
+
+use Nckg\Minify\Minifier;
+
+class MinifierTest extends TestCase
+{
+    /** @test */
+    public function it_shortens_multiple_white_spaces()
+    {
+        $string = '<a href="/foo" class="bar  moo        ">Hello World</a>';
+        $expected = '<a href="/foo" class="bar moo ">Hello World</a>';
+        $this->assertMinifiedString($expected, $string);
+    }
+
+    /** @test */
+    public function it_removes_comments_except_ie_conditions()
+    {
+        $string = [
+            '<!-- Hello World -->',
+            '<!--[if lt IE 9]>',
+            'Hello IE',
+            '<![endif]-->',
+        ];
+        $expected = '<!--[if lt IE 9]>Hello IE<![endif]-->';
+        $this->assertMinifiedString($expected, implode('', $string));
+    }
+
+    /** @test */
+    public function it_collapses_new_lines()
+    {
+        $string = 'Hello
+        World';
+        $expected = 'Hello World';
+        $this->assertMinifiedString($expected, $string);
+    }
+
+    /** @test */
+    public function it_removes_comments()
+    {
+        $string = '// Hello World
+        Batman';
+        $expected = ' Batman';
+        $this->assertMinifiedString($expected, $string);
+    }
+
+    /** @test */
+    public function it_minifies_an_entire_page_correct()
+    {
+        $string = file_get_contents(__DIR__ . '/_data/page.html');
+        $expected = file_get_contents(__DIR__ . '/_data/page-minified.html');
+        $this->assertMinifiedString($expected, $string);
+    }
+
+    /**
+     * @param $expected
+     * @param $string
+     */
+    protected function assertMinifiedString($expected, $string)
+    {
+        $minifier = new Minifier();
+        $this->assertSame($expected, $minifier->html($string));
+    }
+}

tests/TestCase.php

@@ -0,0 +1,11 @@
+<?php
+
+
+namespace Nckg\Minify\Test;
+
+use Orchestra\Testbench\TestCase as Orchestra;
+
+abstract class TestCase extends Orchestra
+{
+
+}

tests/_data/page-minified.html

@@ -0,0 +1 @@
+<!DOCTYPE html><html lang="en"><head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <meta name="viewport" content="width=device-width, initial-scale=1"> <title>Bootstrap 101 Template</title> <link href="css/bootstrap.min.css" rel="stylesheet"> <!--[if lt IE 9]> <script src="https://oss.maxcdn.com/html5shiv/3.7.3/html5shiv.min.js"></script> <script src="https://oss.maxcdn.com/respond/1.4.2/respond.min.js"></script> <![endif]--></head><body><h1>Hello, world!</h1> <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script> <script src="js/bootstrap.min.js"></script></body></html>

tests/_data/page.html

@@ -0,0 +1,28 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="utf-8">
+    <meta http-equiv="X-UA-Compatible" content="IE=edge">
+    <meta name="viewport" content="width=device-width, initial-scale=1">
+    <!-- The above 3 meta tags *must* come first in the head; any other head content must come *after* these tags -->
+    <title>Bootstrap 101 Template</title>
+
+    <!-- Bootstrap -->
+    <link href="css/bootstrap.min.css" rel="stylesheet">
+
+    <!-- HTML5 shim and Respond.js for IE8 support of HTML5 elements and media queries -->
+    <!-- WARNING: Respond.js doesn't work if you view the page via file:// -->
+    <!--[if lt IE 9]>
+    <script src="https://oss.maxcdn.com/html5shiv/3.7.3/html5shiv.min.js"></script>
+    <script src="https://oss.maxcdn.com/respond/1.4.2/respond.min.js"></script>
+    <![endif]-->
+</head>
+<body>
+<h1>Hello, world!</h1>
+
+<!-- jQuery (necessary for Bootstrap's JavaScript plugins) -->
+<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
+<!-- Include all compiled plugins (below), or include individual files as needed -->
+<script src="js/bootstrap.min.js"></script>
+</body>
+</html>