修复下载远程图片bug

src/Tools/Drawer.php

@@ -49,7 +49,7 @@ class Drawer
         $url = $this->parseUrl($url);
         // excel画图中下载图片时对图片名做urlencode处理,防止中文名不能正常画图片的bug
         $filename = trim(pathinfo($url, PATHINFO_FILENAME));
-        $ext = strtolower(pathinfo($url, PATHINFO_EXTENSION));
+        $ext = $this->getImgExt($url);
         $filename = "$filename.$ext";
 
         $path = $this->rootPath . '/download/images/' . ($path ?: $this->savePath);
@@ -79,6 +79,8 @@ class Drawer
             $url = rawurlencode($url);
             $url = str_replace("%3A", ":", $url);
             $url = str_replace("%2F", "/", $url);
+            $url = str_replace("%3F", "?", $url);
+            $url = str_replace("%3D", "=", $url);
         }
         return $url;
     }
@@ -95,7 +97,8 @@ class Drawer
 
         $imgPathInfo = pathinfo($imgPath);
         $filename = $imgPathInfo['filename']; // 图片名称
-        $ext = $imgPathInfo['extension']; // 图片扩展名
+        $ext = $this->getImgExt($imgPath);
+
         [$img_w, $img_h] = getimagesize($imgPath); // 图片大小
 
         $savePath = $this->rootPath . '/download/board/' . $this->savePath;
@@ -239,4 +242,23 @@ class Drawer
         $this->savePath = $path;
     }
 
+    /**
+     * 获取图片扩展名
+     * @param $path
+     * @return bool|mixed|string
+     * @author Zero
+     */
+    public function getImgExt($path)
+    {
+        $ext = false;
+        $info = getimagesize($path);
+        if (isset($info['mime']) && $info['mime']) {
+            $ext = explode('/', $info['mime'])[1];
+        } else {
+            $ext = strtolower(pathinfo($path, PATHINFO_EXTENSION));
+            $ext = explode('?', $ext)[0] ?? $ext;
+        }
+        return $ext;
+    }
+
 }