add image watermark

.env.example

@@ -43,4 +43,5 @@ PUSHER_APP_CLUSTER=mt1
 MIX_PUSHER_APP_KEY="${PUSHER_APP_KEY}"
 MIX_PUSHER_APP_CLUSTER="${PUSHER_APP_CLUSTER}"
 
-THEME=gray
+THEME=gray
+WATERMARK=

README.md

@@ -6,6 +6,10 @@ Vien Blog - 一款基于laravel5.8开发的，支持markdown编辑以及图片
 - [VienBlog](https://vienblog.com)
 - [这里有些小秘密](https://vien.tech)
 
+## 宝塔教程
+
+感谢大鸟博客写了宝塔搭建本博客的教程，详情戳[宝塔面板安装laravel-blog](https://www.daniao.org/9085.html)
+
 ## 项目Github地址
 
 Github: [laravel-blog](https://github.com/luvvien/laravel-blog) ，欢迎Star。

app/Console/Commands/test.php

@@ -4,6 +4,9 @@ namespace App\Console\Commands;
 
 use Illuminate\Console\Command;
 use Illuminate\Support\Facades\DB;
+use Imagick;
+use ImagickDraw;
+use ImagickPixel;
 
 class Test extends Command
 {
@@ -39,6 +42,110 @@ class Test extends Command
      */
     public function handle()
     {
-       dump(json_decode('[{"title":"首页","url":"https:\/\/vienblog.com"},{"title":"关于作者","url":"https:\/\/vienblog.com"},{"title":"打赏作者","url":"https:\/\/viencoding.com\/pay"},{"title":"建站教程","url":"https:\/\/vienblog.com"},{"title":"科学上网","url":"https:\/\/viencoding.com\/article\/122"},{"title":"网站导航","url":"https:\/\/vienblog.com"},{"title":"机器学习","url":"https:\/\/vienblog.com\/category\/机器学习"},{"title":"Laravel教程","url":"https:\/\/vienblog.com"},{"title":"Python教程","url":"https:\/\/vienblog.com"},{"title":"Git教程","url":"https:\/\/vienblog.com"},{"title":"Docker教程","url":"https:\/\/vienblog.com"},{"title":"友情链接","url":"https:\/\/vienblog.com"}]'));
+//       dump(json_decode('[{"title":"首页","url":"https:\/\/vienblog.com"},{"title":"关于作者","url":"https:\/\/vienblog.com"},{"title":"打赏作者","url":"https:\/\/viencoding.com\/pay"},{"title":"建站教程","url":"https:\/\/vienblog.com"},{"title":"科学上网","url":"https:\/\/viencoding.com\/article\/122"},{"title":"网站导航","url":"https:\/\/vienblog.com"},{"title":"机器学习","url":"https:\/\/vienblog.com\/category\/机器学习"},{"title":"Laravel教程","url":"https:\/\/vienblog.com"},{"title":"Python教程","url":"https:\/\/vienblog.com"},{"title":"Git教程","url":"https:\/\/vienblog.com"},{"title":"Docker教程","url":"https:\/\/vienblog.com"},{"title":"友情链接","url":"https:\/\/vienblog.com"}]'));
+        $str="Vien@vienblog.com";
+        $imgPath = "/Users/vien/PhpstormProjects/laravel-blog/public/images/avatars/lbxx-3.jpg";
+//        $imgPath = "/Users/vien/PhpstormProjects/laravel-blog/public/images/avatars/ttt.png";
+        $savePath = "public/bar.jpg";
+//        watermark($imgPath, $savePath, $str);
+        $this->tree(storage_path('app/public'));
+    }
+
+    public function tree($directory)
+    {
+        $mydir = dir($directory);
+        while($file = $mydir->read())
+        {
+            if((is_dir("$directory/$file")) AND ($file!=".") AND ($file!=".."))
+            {
+//                echo "$file\n";
+                $this->tree("$directory/$file");
+            }
+            else
+//                echo "$file\n";
+                if (in_array(strtolower(pathinfo($file, PATHINFO_EXTENSION)), ['jpeg', 'jpg', 'png'])) {
+                    echo "$directory/$file\n";
+                    watermark("$directory/$file", "$directory/$file", "vienblog.com");
+                }
+        }
+        $mydir->close();
+    }
+
+//    public function addWatermark()
+//    {
+//
+//    }
+
+    public function water($imgPath, $savePath, $str)
+    {
+        $ext = strtolower(pathinfo($imgPath, PATHINFO_EXTENSION));
+        if ($ext == "png") {
+            $im = imagecreatefrompng($imgPath);
+        } else if (in_array($ext, ['jpeg', 'jpg'])) {
+            $im = imagecreatefromjpeg($imgPath);
+        } else {
+            // 格式不是png和jpg不加水印
+            return;
+        }
+
+        // 载入字体zt.ttf
+        $fnt = resource_path("/fonts/fzsj.ttf");
+        // 文字相对于高度或者宽度的比例
+        $scale = 0.04;
+        // 设置颜色，用于文字字体的白和阴影的黑
+        $white=imagecolorallocate($im,255,255,255);
+        $black=imagecolorallocate($im,50,50,50);
+        // 计算文字大小和位置
+        $imgInfo = getimagesize($imgPath);
+        $width = $imgInfo[0];
+        $height = $imgInfo[1];
+        $textSize = ($height + $width) / 2 * $scale;
+        $bbox = imagettfbbox($textSize, 0, $fnt, $str);
+        $textWidth = abs($bbox[2] - $bbox[0]);
+        $textHeight = abs($bbox[3] - $bbox[5]);
+        $top = $height - $textHeight / 1.8;
+        $left = $width - $textSize - $textWidth;
+
+        // 超出画幅不加水印
+        if ($top < 0 || $left < 0) return;
+
+        //在图片中添加文字，imagettftext (image,size,angle, x, y,color,fontfile,text)
+        imagettftext($im,$textSize, 0, $left+1, $top+1, $black, $fnt, $str);
+        imagettftext($im,$textSize, 0, $left, $top, $white, $fnt, $str);
+        //将$im输出
+        ImageJpeg($im, $savePath);
+        //销毁$im对象
+        ImageDestroy($im);
+    }
+
+    public function water2() {
+        $canvas = new Imagick();
+        $canvas->newImage(500, 200, 'white');
+        $canvas->setImageFormat('png');
+
+        $text = new Imagick();
+        $text->newImage(500, 200, 'none');
+        $text->setImageFormat('png');
+
+        $draw = new ImagickDraw();
+        $draw->setFillColor(new ImagickPixel('#f00'));
+        $draw->setFontSize(50);
+        $draw->annotation(100, 60, 'welcome');
+        $text->drawImage($draw);
+
+        $draw->setFillColor(new ImagickPixel('#fff'));
+        $draw->setFontSize(50);
+        $draw->annotation(100, 120, 'welcome');
+        $text->drawImage($draw);
+
+//        $shadow_layer = $text->clone();
+        $shadow_layer = clone $text;
+        $shadow_layer->setImageBackgroundColor(new ImagickPixel('#555'));
+        $shadow_layer->shadowImage(80, 0.8, 0, 0);
+        $shadow_layer->compositeImage($text, Imagick::COMPOSITE_OVER, 0, 0 );
+        $canvas->compositeImage($shadow_layer, imagick::COMPOSITE_DEFAULT, 0, 0);
+
+        header("Content-type: image/{$canvas->getImageFormat()}");
+        echo $canvas->getImageBlob();
     }
 }

app/Http/Controllers/Admin/Index/UploadController.php

@@ -51,6 +51,11 @@ class UploadController extends Controller
         ) {
             $path = $request->file->store(date('Ymd'), config('vienblog.disks.files'));
             $url = Storage::disk(config('vienblog.disks.files'))->url($path);
+            if (env('WATERMARK', '')) {
+                try {
+                    watermark(public_path($url), public_path($url), env('WATERMARK'));
+                }catch (\Exception $e) {}
+            }
 //            return response()->json(['filename' => $url]);
             $file = new File();
             $file->path = $url;

app/Http/Controllers/Admin/UploadController.php

@@ -25,6 +25,11 @@ class UploadController extends Controller
             $path = $request->file->store(date('Ymd'), config('vienblog.disks.article_image'));
             $url = Storage::disk(config('vienblog.disks.article_image'))->url($path);
 
+            if (env('WATERMARK', '')) {
+                try {
+                    watermark(public_path($url), public_path($url), env('WATERMARK'));
+                }catch (\Exception $e) {}
+            }
 
             if (env('TINIFY_APIKEY', '') && in_array($request->file->extension(), ["png", "jpg", "jpeg"])) {
 

helpers/tools.php

@@ -14,4 +14,46 @@
 function vn_time($timestamp)
 {
     return date('Y-m-d H:i:s', $timestamp);
+}
+
+function watermark($imgPath, $savePath, $str)
+{
+    $ext = strtolower(pathinfo($imgPath, PATHINFO_EXTENSION));
+    if ($ext == "png") {
+        $im = imagecreatefrompng($imgPath);
+    } else if (in_array($ext, ['jpeg', 'jpg'])) {
+        $im = imagecreatefromjpeg($imgPath);
+    } else {
+        // 格式不是png和jpg不加水印
+        return;
+    }
+
+    // 载入字体zt.ttf
+    $fnt = resource_path("/fonts/fzsj.ttf");
+    // 文字相对于高度或者宽度的比例
+    $scale = 0.04;
+    // 设置颜色，用于文字字体的白和阴影的黑
+    $white=imagecolorallocate($im,255,255,255);
+    $black=imagecolorallocate($im,50,50,50);
+    // 计算文字大小和位置
+    $imgInfo = getimagesize($imgPath);
+    $width = $imgInfo[0];
+    $height = $imgInfo[1];
+    $textSize = ($height + $width) / 2 * $scale;
+    $bbox = imagettfbbox($textSize, 0, $fnt, $str);
+    $textWidth = abs($bbox[2] - $bbox[0]);
+    $textHeight = abs($bbox[3] - $bbox[5]);
+    $top = $height - $textHeight / 1.8;
+    $left = $width - $textSize - $textWidth;
+
+    // 超出画幅不加水印
+    if ($top < 0 || $left < 0) return;
+
+    //在图片中添加文字，imagettftext (image,size,angle, x, y,color,fontfile,text)
+    imagettftext($im,$textSize, 0, $left+1, $top+1, $black, $fnt, $str);
+    imagettftext($im,$textSize, 0, $left, $top, $white, $fnt, $str);
+    //将$im输出
+    ImageJpeg($im, $savePath);
+    //销毁$im对象
+    ImageDestroy($im);
 }