Feature: implement caching Github avatar's [closes #39]

.gitignore

@@ -11,6 +11,9 @@
 /www/assets/css/*.css
 /www/dist
 
+# Front-end
+/www/imgs
+
 # Composer
 /vendor/*
 /composer.lock

app/config/app/model.neon

@@ -25,6 +25,9 @@ services:
     # [back-end]
     - App\Model\Facade\Admin\AddonFacade
 
+    # Images ===============================================
+    - App\Model\WebImages\GithubImages(%wwwDir%/imgs)
+
     # Tasks ================================================
     - App\Model\Tasks\Addons\GenerateContentTask
     - App\Model\Tasks\Addons\UpdateGithubTask

app/model/exceptions/logic/InvalidArgumentException.php

@@ -0,0 +1,9 @@
+<?php
+
+namespace App\Model\Exceptions\Runtime;
+
+use App\Model\Exceptions\LogicException;
+
+class InvalidArgumentException extends LogicException
+{
+}

app/model/routing/RouterFactory.php

@@ -83,6 +83,22 @@ protected function createWeb()
         $front[] = new Route('search/', 'List:search');
         $front[] = new Route('search/<tag>', 'List:tag');
         $front[] = new Route('status/', 'Status:default');
+
+        // FRONT.IMAGES ====================================
+        $front[] = new Route('imgs/<action>/<owner [\w\-\/]+>.[!<ext=png>]', [
+            'presenter' => 'WebImage',
+            'action' => 'default',
+            'owner' => [
+                Route::FILTER_OUT => function ($owner) {
+                    return strtolower($owner);
+                },
+                Route::FILTER_IN => function ($owner) {
+                    return strtolower($owner);
+                }
+            ]
+        ]);
+
+        // COMMON SCHEME
         $front[] = new Route('<presenter>/<action>', 'Home:default');
 
         return $router;

app/model/webimages/GithubImages.php

@@ -0,0 +1,87 @@
+<?php
+
+namespace App\Model\WebImages;
+
+use App\Model\Exceptions\Runtime\InvalidArgumentException;
+use Nette\Utils\FileSystem;
+use Nette\Utils\Image;
+
+final class GithubImages implements ImageProvider
+{
+
+    // Github URL's
+    const URL_AVATAR = 'https://github.com/%s';
+
+    /** @var string */
+    private $imageDir;
+
+    /**
+     * @param string $imageDir
+     */
+    public function __construct($imageDir)
+    {
+        $this->imageDir = $imageDir;
+        FileSystem::createDir($imageDir);
+    }
+
+    /**
+     * FACTORIES ***************************************************************
+     */
+
+    /**
+     * @param string $owner
+     */
+    protected function createAvatar($owner)
+    {
+        $image = @file_get_contents(sprintf(self::URL_AVATAR, $owner));
+        if ($image) {
+            // Save Github avatar to our FS
+            $filename = $this->imageDir . '/avatar/' . $owner;
+            FileSystem::write($filename, $image);
+
+            // Send image for first request
+            $image = Image::fromFile($filename);
+            $image->send(Image::PNG);
+            exit;
+        }
+
+    }
+
+    /**
+     * API *********************************************************************
+     */
+
+    /**
+     * @param array $args
+     */
+    public function create(array $args)
+    {
+        if (!isset($args['type'])) {
+            throw new InvalidArgumentException('No type given');
+        }
+
+        switch ($args['type']) {
+            case 'avatar':
+                $this->createAvatar($this->normalize($args['owner']));
+                break;
+
+            default:
+                throw new InvalidArgumentException('Unknown type "' . $args['type'] . '"given');
+        }
+    }
+
+    /**
+     * HELPERS *****************************************************************
+     * *************************************************************************
+     */
+
+    /**
+     * @param string $image
+     * @return string
+     */
+    private function normalize($image)
+    {
+        return strtolower(htmlspecialchars($image));
+    }
+
+}

app/model/webimages/ImageProvider.php

@@ -0,0 +1,13 @@
+<?php
+
+namespace App\Model\WebImages;
+
+interface ImageProvider
+{
+
+    /**
+     * @param array $args
+     */
+    public function create(array $args);
+
+}

app/modules/front/controls/AddonDetail/templates/sidebar.latte

@@ -11,7 +11,7 @@
 
 <div class="title-owner">
     <a data-ga="1" data-event="click" data-category="sidebar" data-action="owner-title" data-toggle="tooltip" data-placement="left" title="Show all addons by {$owner}" href="{plink List:owner, slug => $owner}">
-        <img alt="" title="{$owner}" src="{$addon->github->linker->getOwnerAvatarUrl(40)}"> {$owner}
+        <img alt="" title="{$owner}" src="{plink WebImage:avatar, $addon->owner}"> {$owner}
     </a>
 </div>
 

app/modules/front/controls/AddonList/templates/list.latte

@@ -6,7 +6,7 @@
                 <article class="b-addon__article">
                     <section class="b-addon__image">
                         <a href="{plink :Front:Addon:detail, slug => $addon->id}">
-                            <img alt="" title="{$addon->owner}" src="{$addon->github->linker->getOwnerAvatarUrl(60)}">
+                            <img alt="" title="{$addon->owner}" src="{plink WebImage:avatar, $addon->owner}">
                         </a>
                     </section>
                     <section class="b-addon__body">

app/modules/front/controls/AddonMeta/templates/full.latte

@@ -1,5 +1,5 @@
 <section class="meta">
-    <a href="{$addon->github->linker->getOwnerUrl()}"><img alt="" title="{$addon->owner}"  src="{$addon->github->linker->getOwnerAvatarUrl(20)}"></a>
+    <a href="{$addon->github->linker->getOwnerUrl()}"><img alt="" title="{$addon->owner}" src="{plink WebImage:avatar, $addon->owner}"></a>
     <a class="link-author" href="{plink List:owner, slug => $addon->github->owner}">{$addon->github->owner}</a>
 
     <div class="meta-right">

app/modules/front/presenters/WebImagePresenter.php

@@ -0,0 +1,28 @@
+<?php
+
+namespace App\Modules\Front;
+
+use App\Model\WebImages\GithubImages;
+use Nette\Utils\Strings;
+
+final class WebImagePresenter extends BasePresenter
+{
+
+    /** @var GithubImages @inject */
+    public $githubImages;
+
+    /**
+     * Create and send user avatar from Github
+     *
+     * @param string $owner
+     * @param string $ext
+     */
+    public function actionAvatar($owner, $ext)
+    {
+        $this->githubImages->create([
+            'type' => 'avatar',
+            'owner' => "$owner.$ext",
+        ]);
+    }
+
+}

www/.htaccess

@@ -16,7 +16,7 @@
 	# front controller
 	RewriteCond %{REQUEST_FILENAME} !-f
 	RewriteCond %{REQUEST_FILENAME} !-d
-	RewriteRule !\.(pdf|js|ico|gif|jpg|png|css|rar|zip|tar\.gz|map)$ index.php [L]
+	RewriteRule !\.(pdf|js|ico|css|rar|zip|tar\.gz|map)$ index.php [L]
 </IfModule>
 
 # enable gzip compression