Add php integration

.gitignore

@@ -1 +1,3 @@
 # Created by .ignore support plugin (hsz.mobi)
+
+/vendor/

README.md

@@ -1,5 +1,25 @@
-# To get started
+# wkhtmltopdf docker
+This is a docker micro-service which has a simple api to generate PDFs.
+
+## To set up the server
 ```
 docker build -t wkhtmltopdf .
 docker run -d -p 80:80 -v $(pwd)/api:/var/www/html wkhtmltopdf
 ```
+
+## To put in a PHP project
+
+```php
+require_once "vendor/autoload.php";
+
+use GuzzleHttp\Client;
+use PDFGenerator\PDFGenerator;
+use PDFGenerator\Implementation\RemotePDF;
+
+$client = new Client(['base_uri' => 'http://192.168.0.1:8080']);
+$generator = new PDFGenerator(new RemotePDF($client));
+
+header("Content-type:application/pdf");
+
+echo $generator->fromURL('http://www.google.co.uk');
+```

composer.json

@@ -0,0 +1,17 @@
+{
+    "name": "amonger/wkhtmltopdf-api",
+    "authors": [
+        {
+            "name": "Alan Monger",
+            "email": "[email protected]"
+        }
+    ],
+    "require": {
+        "guzzlehttp/guzzle": "^6.1"
+    },
+    "autoload": {
+        "psr-4": {
+            "PDFGenerator\\" : "src/"
+        }
+    }
+}

src/AbstractPDFGenerator.php

@@ -0,0 +1,13 @@
+<?php
+
+namespace PDFGenerator;
+
+abstract class AbstractPDFGenerator implements PDFGeneratorInterface
+{
+    protected $generator;
+
+    public function __construct(PDFGeneratorInterface $generator)
+    {
+        $this->generator = $generator;
+    }
+}

src/Implementation/RemotePDF.php

@@ -0,0 +1,27 @@
+<?php
+
+namespace PDFGenerator\Implementation;
+
+use PDFGenerator\PDFGeneratorInterface;
+use GuzzleHttp\Client;
+
+class RemotePDF implements PDFGeneratorInterface
+{
+    private $client;
+
+    public function __construct(Client $client)
+    {
+        $this->client = $client;
+    }
+
+    public function fromURL($url)
+    {
+        $res = $this->client->post('/url', [
+            'query'=> [
+                'url' => $url
+            ]
+        ]);
+
+        return base64_decode($res->getBody());
+    }
+}

src/Implementation/WKHTMLToPDF.php

@@ -0,0 +1,21 @@
+<?php
+
+namespace PDFGenerator\Implementation;
+
+use PDFGenerator\PDFGeneratorInterface;
+use Knp\Snappy\Pdf;
+
+class WKHTMLToPDF implements PDFGeneratorInterface
+{
+    private $pdf;
+
+    public function __construct(Pdf $pdf)
+    {
+        $this->pdf = $pdf;
+    }
+
+    public function fromURL($url)
+    {
+        return $this->pdf->getOutput($url);
+    }
+}

src/PDFGenerator.php

@@ -0,0 +1,11 @@
+<?php
+
+namespace PDFGenerator;
+
+class PDFGenerator extends AbstractPDFGenerator
+{
+    public function fromURL($url)
+    {
+        return $this->generator->fromURL($url);
+    }
+}

src/PDFGeneratorInterface.php

@@ -0,0 +1,8 @@
+<?php
+
+namespace PDFGenerator;
+
+interface PDFGeneratorInterface
+{
+    public function fromURL($url);
+}